diff options
Diffstat (limited to 't')
40 files changed, 6664 insertions, 99 deletions
@@ -293,6 +293,28 @@ and know what setup is needed for it. Or when you want to run everything up to a certain test. +Running tests with special setups +--------------------------------- + +The whole test suite could be run to test some special features +that cannot be easily covered by a few specific test cases. These +could be enabled by running the test suite with correct GIT_TEST_ +environment set. + +GIT_TEST_SPLIT_INDEX=<boolean> forces split-index mode on the whole +test suite. Accept any boolean values that are accepted by git-config. + +GIT_TEST_FULL_IN_PACK_ARRAY=<boolean> exercises the uncommon +pack-objects code path where there are more than 1024 packs even if +the actual number of packs in repository is below this limit. Accept +any boolean values that are accepted by git-config. + +GIT_TEST_OE_SIZE=<n> exercises the uncommon pack-objects code path +where we do not cache object size in memory and read it from existing +packs on demand. This normally only happens when the object size is +over 2GB. This variable forces the code path on any object larger than +<n> bytes. + Naming Tests ------------ diff --git a/t/helper/test-pkt-line.c b/t/helper/test-pkt-line.c new file mode 100644 index 0000000000..0f19e53c75 --- /dev/null +++ b/t/helper/test-pkt-line.c @@ -0,0 +1,64 @@ +#include "pkt-line.h" + +static void pack_line(const char *line) +{ + if (!strcmp(line, "0000") || !strcmp(line, "0000\n")) + packet_flush(1); + else if (!strcmp(line, "0001") || !strcmp(line, "0001\n")) + packet_delim(1); + else + packet_write_fmt(1, "%s", line); +} + +static void pack(int argc, const char **argv) +{ + if (argc) { /* read from argv */ + int i; + for (i = 0; i < argc; i++) + pack_line(argv[i]); + } else { /* read from stdin */ + char line[LARGE_PACKET_MAX]; + while (fgets(line, sizeof(line), stdin)) { + pack_line(line); + } + } +} + +static void unpack(void) +{ + struct packet_reader reader; + packet_reader_init(&reader, 0, NULL, 0, + PACKET_READ_GENTLE_ON_EOF | + PACKET_READ_CHOMP_NEWLINE); + + while (packet_reader_read(&reader) != PACKET_READ_EOF) { + switch (reader.status) { + case PACKET_READ_EOF: + break; + case PACKET_READ_NORMAL: + printf("%s\n", reader.line); + break; + case PACKET_READ_FLUSH: + printf("0000\n"); + break; + case PACKET_READ_DELIM: + printf("0001\n"); + break; + } + } +} + +int cmd_main(int argc, const char **argv) +{ + if (argc < 2) + die("too few arguments"); + + if (!strcmp(argv[1], "pack")) + pack(argc - 2, argv + 2); + else if (!strcmp(argv[1], "unpack")) + unpack(); + else + die("invalid argument '%s'", argv[1]); + + return 0; +} diff --git a/t/helper/test-ref-store.c b/t/helper/test-ref-store.c index 7c4f43746e..e9e0541276 100644 --- a/t/helper/test-ref-store.c +++ b/t/helper/test-ref-store.c @@ -3,6 +3,7 @@ #include "refs.h" #include "worktree.h" #include "object-store.h" +#include "repository.h" static const char *notnull(const char *arg, const char *name) { @@ -23,7 +24,7 @@ static const char **get_store(const char **argv, struct ref_store **refs) if (!argv[0]) { die("ref store required"); } else if (!strcmp(argv[0], "main")) { - *refs = get_main_ref_store(); + *refs = get_main_ref_store(the_repository); } else if (skip_prefix(argv[0], "submodule:", &gitdir)) { struct strbuf sb = STRBUF_INIT; int ret; diff --git a/t/helper/test-submodule-config.c b/t/helper/test-submodule-config.c index 5c6e4b010d..e2692746df 100644 --- a/t/helper/test-submodule-config.c +++ b/t/helper/test-submodule-config.c @@ -49,9 +49,11 @@ int cmd__submodule_config(int argc, const char **argv) die_usage(argc, argv, "Commit not found."); if (lookup_name) { - submodule = submodule_from_name(&commit_oid, path_or_name); + submodule = submodule_from_name(the_repository, + &commit_oid, path_or_name); } else - submodule = submodule_from_path(&commit_oid, path_or_name); + submodule = submodule_from_path(the_repository, + &commit_oid, path_or_name); if (!submodule) die_usage(argc, argv, "Submodule not found."); @@ -65,7 +67,7 @@ int cmd__submodule_config(int argc, const char **argv) arg += 2; } - submodule_free(); + submodule_free(the_repository); return 0; } diff --git a/t/perf/aggregate.perl b/t/perf/aggregate.perl index 48637ef64b..bc865160e7 100755 --- a/t/perf/aggregate.perl +++ b/t/perf/aggregate.perl @@ -4,6 +4,7 @@ use lib '../../perl/build/lib'; use strict; use warnings; use JSON; +use Getopt::Long; use Git; sub get_times { @@ -36,46 +37,34 @@ sub format_times { return $out; } +sub usage { + print <<EOT; +./aggregate.perl [options] [--] [<dir_or_rev>...] [--] [<test_script>...] > + + Options: + --codespeed * Format output for Codespeed + --reponame <str> * Send given reponame to codespeed + --sort-by <str> * Sort output (only "regression" criteria is supported) + --subsection <str> * Use results from given subsection + +EOT + exit(1); +} + my (@dirs, %dirnames, %dirabbrevs, %prefixes, @tests, $codespeed, $sortby, $subsection, $reponame); + +Getopt::Long::Configure qw/ require_order /; + +my $rc = GetOptions("codespeed" => \$codespeed, + "reponame=s" => \$reponame, + "sort-by=s" => \$sortby, + "subsection=s" => \$subsection); +usage() unless $rc; + while (scalar @ARGV) { my $arg = $ARGV[0]; my $dir; - if ($arg eq "--codespeed") { - $codespeed = 1; - shift @ARGV; - next; - } - if ($arg =~ /--sort-by(?:=(.*))?/) { - shift @ARGV; - if (defined $1) { - $sortby = $1; - } else { - $sortby = shift @ARGV; - if (! defined $sortby) { - die "'--sort-by' requires an argument"; - } - } - next; - } - if ($arg eq "--subsection") { - shift @ARGV; - $subsection = $ARGV[0]; - shift @ARGV; - if (! $subsection) { - die "empty subsection"; - } - next; - } - if ($arg eq "--reponame") { - shift @ARGV; - $reponame = $ARGV[0]; - shift @ARGV; - if (! $reponame) { - die "empty reponame"; - } - next; - } last if -f $arg or $arg eq "--"; if (! -d $arg) { my $rev = Git::command_oneline(qw(rev-parse --verify), $arg); @@ -225,7 +214,8 @@ sub print_sorted_results { my ($sortby) = @_; if ($sortby ne "regression") { - die "only 'regression' is supported as '--sort-by' argument"; + print "Only 'regression' is supported as '--sort-by' argument\n"; + usage(); } my @evolutions; diff --git a/t/t0028-working-tree-encoding.sh b/t/t0028-working-tree-encoding.sh new file mode 100755 index 0000000000..12b8eb963a --- /dev/null +++ b/t/t0028-working-tree-encoding.sh @@ -0,0 +1,245 @@ +#!/bin/sh + +test_description='working-tree-encoding conversion via gitattributes' + +. ./test-lib.sh + +GIT_TRACE_WORKING_TREE_ENCODING=1 && export GIT_TRACE_WORKING_TREE_ENCODING + +test_expect_success 'setup test files' ' + git config core.eol lf && + + text="hallo there!\ncan you read me?" && + echo "*.utf16 text working-tree-encoding=utf-16" >.gitattributes && + printf "$text" >test.utf8.raw && + printf "$text" | iconv -f UTF-8 -t UTF-16 >test.utf16.raw && + printf "$text" | iconv -f UTF-8 -t UTF-32 >test.utf32.raw && + + # Line ending tests + printf "one\ntwo\nthree\n" >lf.utf8.raw && + printf "one\r\ntwo\r\nthree\r\n" >crlf.utf8.raw && + + # BOM tests + printf "\0a\0b\0c" >nobom.utf16be.raw && + printf "a\0b\0c\0" >nobom.utf16le.raw && + printf "\376\777\0a\0b\0c" >bebom.utf16be.raw && + printf "\777\376a\0b\0c\0" >lebom.utf16le.raw && + printf "\0\0\0a\0\0\0b\0\0\0c" >nobom.utf32be.raw && + printf "a\0\0\0b\0\0\0c\0\0\0" >nobom.utf32le.raw && + printf "\0\0\376\777\0\0\0a\0\0\0b\0\0\0c" >bebom.utf32be.raw && + printf "\777\376\0\0a\0\0\0b\0\0\0c\0\0\0" >lebom.utf32le.raw && + + # Add only UTF-16 file, we will add the UTF-32 file later + cp test.utf16.raw test.utf16 && + cp test.utf32.raw test.utf32 && + git add .gitattributes test.utf16 && + git commit -m initial +' + +test_expect_success 'ensure UTF-8 is stored in Git' ' + test_when_finished "rm -f test.utf16.git" && + + git cat-file -p :test.utf16 >test.utf16.git && + test_cmp_bin test.utf8.raw test.utf16.git +' + +test_expect_success 're-encode to UTF-16 on checkout' ' + test_when_finished "rm -f test.utf16.raw" && + + rm test.utf16 && + git checkout test.utf16 && + test_cmp_bin test.utf16.raw test.utf16 +' + +test_expect_success 'check $GIT_DIR/info/attributes support' ' + test_when_finished "rm -f test.utf32.git" && + test_when_finished "git reset --hard HEAD" && + + echo "*.utf32 text working-tree-encoding=utf-32" >.git/info/attributes && + git add test.utf32 && + + git cat-file -p :test.utf32 >test.utf32.git && + test_cmp_bin test.utf8.raw test.utf32.git +' + +for i in 16 32 +do + test_expect_success "check prohibited UTF-${i} BOM" ' + test_when_finished "git reset --hard HEAD" && + + echo "*.utf${i}be text working-tree-encoding=utf-${i}be" >>.gitattributes && + echo "*.utf${i}le text working-tree-encoding=utf-${i}LE" >>.gitattributes && + + # Here we add a UTF-16 (resp. UTF-32) files with BOM (big/little-endian) + # but we tell Git to treat it as UTF-16BE/UTF-16LE (resp. UTF-32). + # In these cases the BOM is prohibited. + cp bebom.utf${i}be.raw bebom.utf${i}be && + test_must_fail git add bebom.utf${i}be 2>err.out && + test_i18ngrep "fatal: BOM is prohibited .* utf-${i}be" err.out && + test_i18ngrep "use UTF-${i} as working-tree-encoding" err.out && + + cp lebom.utf${i}le.raw lebom.utf${i}be && + test_must_fail git add lebom.utf${i}be 2>err.out && + test_i18ngrep "fatal: BOM is prohibited .* utf-${i}be" err.out && + test_i18ngrep "use UTF-${i} as working-tree-encoding" err.out && + + cp bebom.utf${i}be.raw bebom.utf${i}le && + test_must_fail git add bebom.utf${i}le 2>err.out && + test_i18ngrep "fatal: BOM is prohibited .* utf-${i}LE" err.out && + test_i18ngrep "use UTF-${i} as working-tree-encoding" err.out && + + cp lebom.utf${i}le.raw lebom.utf${i}le && + test_must_fail git add lebom.utf${i}le 2>err.out && + test_i18ngrep "fatal: BOM is prohibited .* utf-${i}LE" err.out && + test_i18ngrep "use UTF-${i} as working-tree-encoding" err.out + ' + + test_expect_success "check required UTF-${i} BOM" ' + test_when_finished "git reset --hard HEAD" && + + echo "*.utf${i} text working-tree-encoding=utf-${i}" >>.gitattributes && + + cp nobom.utf${i}be.raw nobom.utf${i} && + test_must_fail git add nobom.utf${i} 2>err.out && + test_i18ngrep "fatal: BOM is required .* utf-${i}" err.out && + test_i18ngrep "use UTF-${i}BE or UTF-${i}LE" err.out && + + cp nobom.utf${i}le.raw nobom.utf${i} && + test_must_fail git add nobom.utf${i} 2>err.out && + test_i18ngrep "fatal: BOM is required .* utf-${i}" err.out && + test_i18ngrep "use UTF-${i}BE or UTF-${i}LE" err.out + ' + + test_expect_success "eol conversion for UTF-${i} encoded files on checkout" ' + test_when_finished "rm -f crlf.utf${i}.raw lf.utf${i}.raw" && + test_when_finished "git reset --hard HEAD^" && + + cat lf.utf8.raw | iconv -f UTF-8 -t UTF-${i} >lf.utf${i}.raw && + cat crlf.utf8.raw | iconv -f UTF-8 -t UTF-${i} >crlf.utf${i}.raw && + cp crlf.utf${i}.raw eol.utf${i} && + + cat >expectIndexLF <<-EOF && + i/lf w/-text attr/text eol.utf${i} + EOF + + git add eol.utf${i} && + git commit -m eol && + + # UTF-${i} with CRLF (Windows line endings) + rm eol.utf${i} && + git -c core.eol=crlf checkout eol.utf${i} && + test_cmp_bin crlf.utf${i}.raw eol.utf${i} && + + # Although the file has CRLF in the working tree, + # ensure LF in the index + git ls-files --eol eol.utf${i} >actual && + test_cmp expectIndexLF actual && + + # UTF-${i} with LF (Unix line endings) + rm eol.utf${i} && + git -c core.eol=lf checkout eol.utf${i} && + test_cmp_bin lf.utf${i}.raw eol.utf${i} && + + # The file LF in the working tree, ensure LF in the index + git ls-files --eol eol.utf${i} >actual && + test_cmp expectIndexLF actual + ' +done + +test_expect_success 'check unsupported encodings' ' + test_when_finished "git reset --hard HEAD" && + + echo "*.set text working-tree-encoding" >.gitattributes && + printf "set" >t.set && + test_must_fail git add t.set 2>err.out && + test_i18ngrep "true/false are no valid working-tree-encodings" err.out && + + echo "*.unset text -working-tree-encoding" >.gitattributes && + printf "unset" >t.unset && + git add t.unset && + + echo "*.empty text working-tree-encoding=" >.gitattributes && + printf "empty" >t.empty && + git add t.empty && + + echo "*.garbage text working-tree-encoding=garbage" >.gitattributes && + printf "garbage" >t.garbage && + test_must_fail git add t.garbage 2>err.out && + test_i18ngrep "failed to encode" err.out +' + +test_expect_success 'error if encoding round trip is not the same during refresh' ' + BEFORE_STATE=$(git rev-parse HEAD) && + test_when_finished "git reset --hard $BEFORE_STATE" && + + # Add and commit a UTF-16 file but skip the "working-tree-encoding" + # filter. Consequently, the in-repo representation is UTF-16 and not + # UTF-8. This simulates a Git version that has no working tree encoding + # support. + echo "*.utf16le text working-tree-encoding=utf-16le" >.gitattributes && + echo "hallo" >nonsense.utf16le && + TEST_HASH=$(git hash-object --no-filters -w nonsense.utf16le) && + git update-index --add --cacheinfo 100644 $TEST_HASH nonsense.utf16le && + COMMIT=$(git commit-tree -p $(git rev-parse HEAD) -m "plain commit" $(git write-tree)) && + git update-ref refs/heads/master $COMMIT && + + test_must_fail git checkout HEAD^ 2>err.out && + test_i18ngrep "error: .* overwritten by checkout:" err.out +' + +test_expect_success 'error if encoding garbage is already in Git' ' + BEFORE_STATE=$(git rev-parse HEAD) && + test_when_finished "git reset --hard $BEFORE_STATE" && + + # Skip the UTF-16 filter for the added file + # This simulates a Git version that has no checkoutEncoding support + cp nobom.utf16be.raw nonsense.utf16 && + TEST_HASH=$(git hash-object --no-filters -w nonsense.utf16) && + git update-index --add --cacheinfo 100644 $TEST_HASH nonsense.utf16 && + COMMIT=$(git commit-tree -p $(git rev-parse HEAD) -m "plain commit" $(git write-tree)) && + git update-ref refs/heads/master $COMMIT && + + git diff 2>err.out && + test_i18ngrep "error: BOM is required" err.out +' + +test_expect_success 'check roundtrip encoding' ' + test_when_finished "rm -f roundtrip.shift roundtrip.utf16" && + test_when_finished "git reset --hard HEAD" && + + text="hallo there!\nroundtrip test here!" && + printf "$text" | iconv -f UTF-8 -t SHIFT-JIS >roundtrip.shift && + printf "$text" | iconv -f UTF-8 -t UTF-16 >roundtrip.utf16 && + echo "*.shift text working-tree-encoding=SHIFT-JIS" >>.gitattributes && + + # SHIFT-JIS encoded files are round-trip checked by default... + GIT_TRACE=1 git add .gitattributes roundtrip.shift 2>&1 | + grep "Checking roundtrip encoding for SHIFT-JIS" && + git reset && + + # ... unless we overwrite the Git config! + ! GIT_TRACE=1 git -c core.checkRoundtripEncoding=garbage \ + add .gitattributes roundtrip.shift 2>&1 | + grep "Checking roundtrip encoding for SHIFT-JIS" && + git reset && + + # UTF-16 encoded files should not be round-trip checked by default... + ! GIT_TRACE=1 git add roundtrip.utf16 2>&1 | + grep "Checking roundtrip encoding for UTF-16" && + git reset && + + # ... unless we tell Git to check it! + GIT_TRACE=1 git -c core.checkRoundtripEncoding="UTF-16, UTF-32" \ + add roundtrip.utf16 2>&1 | + grep "Checking roundtrip encoding for utf-16" && + git reset && + + # ... unless we tell Git to check it! + # (here we also check that the casing of the encoding is irrelevant) + GIT_TRACE=1 git -c core.checkRoundtripEncoding="UTF-32, utf-16" \ + add roundtrip.utf16 2>&1 | + grep "Checking roundtrip encoding for utf-16" && + git reset +' + +test_done diff --git a/t/t0061-run-command.sh b/t/t0061-run-command.sh index d03149be9f..c887ed5b45 100755 --- a/t/t0061-run-command.sh +++ b/t/t0061-run-command.sh @@ -145,7 +145,7 @@ test_trace () { expect="$1" shift GIT_TRACE=1 test-tool run-command "$@" run-command true 2>&1 >/dev/null | \ - sed 's/.* run_command: //' >actual && + sed -e 's/.* run_command: //' -e '/trace: .*/d' >actual && echo "$expect true" >expect && test_cmp expect actual } diff --git a/t/t1300-repo-config.sh b/t/t1300-config.sh index e95b1e67da..03c223708e 100755 --- a/t/t1300-repo-config.sh +++ b/t/t1300-config.sh @@ -108,6 +108,7 @@ bar = foo [beta] baz = multiple \ lines +foo = bar EOF test_expect_success 'unset with cont. lines' ' @@ -118,6 +119,7 @@ cat > expect <<\EOF [alpha] bar = foo [beta] +foo = bar EOF test_expect_success 'unset with cont. lines is correct' 'test_cmp expect .git/config' @@ -740,7 +742,7 @@ test_expect_success bool ' do git config --bool --get bool.true$i >>result git config --bool --get bool.false$i >>result - done && + done && test_cmp expect result' test_expect_success 'invalid bool (--get)' ' @@ -931,6 +933,36 @@ test_expect_success 'get --expiry-date' ' test_must_fail git config --expiry-date date.invalid1 ' +test_expect_success 'get --type=color' ' + rm .git/config && + git config foo.color "red" && + git config --get --type=color foo.color >actual.raw && + test_decode_color <actual.raw >actual && + echo "<RED>" >expect && + test_cmp expect actual +' + +cat >expect << EOF +[foo] + color = red +EOF + +test_expect_success 'set --type=color' ' + rm .git/config && + git config --type=color foo.color "red" && + test_cmp expect .git/config +' + +test_expect_success 'get --type=color barfs on non-color' ' + echo "[foo]bar=not-a-color" >.git/config && + test_must_fail git config --get --type=color foo.bar +' + +test_expect_success 'set --type=color barfs on non-color' ' + test_must_fail git config --type=color foo.color "not-a-color" 2>error && + test_i18ngrep "cannot parse color" error +' + cat > expect << EOF [quote] leading = " test" @@ -1411,7 +1443,7 @@ test_expect_success 'urlmatch with wildcard' ' ' # good section hygiene -test_expect_failure 'unsetting the last key in a section removes header' ' +test_expect_success '--unset last key removes section (except if commented)' ' cat >.git/config <<-\EOF && # some generic comment on the configuration file itself # a comment specific to this "section" section. @@ -1425,13 +1457,86 @@ test_expect_failure 'unsetting the last key in a section removes header' ' cat >expect <<-\EOF && # some generic comment on the configuration file itself + # a comment specific to this "section" section. + [section] + # some intervening lines + # that should also be dropped + + # please be careful when you update the above variable EOF git config --unset section.key && - test_cmp expect .git/config + test_cmp expect .git/config && + + cat >.git/config <<-\EOF && + [section] + key = value + [next-section] + EOF + + cat >expect <<-\EOF && + [next-section] + EOF + + git config --unset section.key && + test_cmp expect .git/config && + + q_to_tab >.git/config <<-\EOF && + [one] + Qkey = "multiline \ + QQ# with comment" + [two] + key = true + EOF + git config --unset two.key && + ! grep two .git/config && + + q_to_tab >.git/config <<-\EOF && + [one] + Qkey = "multiline \ + QQ# with comment" + [one] + key = true + EOF + git config --unset-all one.key && + test_line_count = 0 .git/config && + + q_to_tab >.git/config <<-\EOF && + [one] + Qkey = true + Q# a comment not at the start + [two] + Qkey = true + EOF + git config --unset two.key && + grep two .git/config && + + q_to_tab >.git/config <<-\EOF && + [one] + Qkey = not [two "subsection"] + [two "subsection"] + [two "subsection"] + Qkey = true + [TWO "subsection"] + [one] + EOF + git config --unset two.subsection.key && + test "not [two subsection]" = "$(git config one.key)" && + test_line_count = 3 .git/config ' -test_expect_failure 'adding a key into an empty section reuses header' ' +test_expect_success '--unset-all removes section if empty & uncommented' ' + cat >.git/config <<-\EOF && + [section] + key = value1 + key = value2 + EOF + + git config --unset-all section.key && + test_line_count = 0 .git/config +' + +test_expect_success 'adding a key into an empty section reuses header' ' cat >.git/config <<-\EOF && [section] EOF @@ -1611,4 +1716,88 @@ test_expect_success '--local requires a repo' ' test_expect_code 128 nongit git config --local foo.bar ' +cat >.git/config <<-\EOF && +[core] +foo = true +number = 10 +big = 1M +EOF + +test_expect_success 'identical modern --type specifiers are allowed' ' + git config --type=int --type=int core.big >actual && + echo 1048576 >expect && + test_cmp expect actual +' + +test_expect_success 'identical legacy --type specifiers are allowed' ' + git config --int --int core.big >actual && + echo 1048576 >expect && + test_cmp expect actual +' + +test_expect_success 'identical mixed --type specifiers are allowed' ' + git config --int --type=int core.big >actual && + echo 1048576 >expect && + test_cmp expect actual +' + +test_expect_success 'non-identical modern --type specifiers are not allowed' ' + test_must_fail git config --type=int --type=bool core.big 2>error && + test_i18ngrep "only one type at a time" error +' + +test_expect_success 'non-identical legacy --type specifiers are not allowed' ' + test_must_fail git config --int --bool core.big 2>error && + test_i18ngrep "only one type at a time" error +' + +test_expect_success 'non-identical mixed --type specifiers are not allowed' ' + test_must_fail git config --type=int --bool core.big 2>error && + test_i18ngrep "only one type at a time" error +' + +test_expect_success '--type allows valid type specifiers' ' + echo "true" >expect && + git config --type=bool core.foo >actual && + test_cmp expect actual +' + +test_expect_success '--no-type unsets type specifiers' ' + echo "10" >expect && + git config --type=bool --no-type core.number >actual && + test_cmp expect actual +' + +test_expect_success 'unset type specifiers may be reset to conflicting ones' ' + echo 1048576 >expect && + git config --type=bool --no-type --type=int core.big >actual && + test_cmp expect actual +' + +test_expect_success '--type rejects unknown specifiers' ' + test_must_fail git config --type=nonsense core.foo 2>error && + test_i18ngrep "unrecognized --type argument" error +' + +test_expect_success '--replace-all does not invent newlines' ' + q_to_tab >.git/config <<-\EOF && + [abc]key + QkeepSection + [xyz] + Qkey = 1 + [abc] + Qkey = a + EOF + q_to_tab >expect <<-\EOF && + [abc] + QkeepSection + [xyz] + Qkey = 1 + [abc] + Qkey = b + EOF + git config --replace-all abc.key b && + test_cmp .git/config expect +' + test_done diff --git a/t/t1310-config-default.sh b/t/t1310-config-default.sh new file mode 100755 index 0000000000..6049d91708 --- /dev/null +++ b/t/t1310-config-default.sh @@ -0,0 +1,36 @@ +#!/bin/sh + +test_description='Test git config in different settings (with --default)' + +. ./test-lib.sh + +test_expect_success 'uses --default when entry missing' ' + echo quux >expect && + git config -f config --default=quux core.foo >actual && + test_cmp expect actual +' + +test_expect_success 'does not use --default when entry present' ' + echo bar >expect && + git -c core.foo=bar config --default=baz core.foo >actual && + test_cmp expect actual +' + +test_expect_success 'canonicalizes --default with appropriate type' ' + echo true >expect && + git config -f config --default=yes --bool core.foo >actual && + test_cmp expect actual +' + +test_expect_success 'dies when --default cannot be parsed' ' + test_must_fail git config -f config --type=expiry-date --default=x --get \ + not.a.section 2>error && + test_i18ngrep "failed to format default config value" error +' + +test_expect_success 'does not allow --default without --get' ' + test_must_fail git config --default=quux --unset a.section >output 2>&1 && + test_i18ngrep "\-\-default is only applicable to" output +' + +test_done diff --git a/t/t1510-repo-setup.sh b/t/t1510-repo-setup.sh index e6854b828e..972bd9c785 100755 --- a/t/t1510-repo-setup.sh +++ b/t/t1510-repo-setup.sh @@ -238,7 +238,6 @@ test_expect_success '#0: nonbare repo, no explicit configuration' ' ' test_expect_success '#1: GIT_WORK_TREE without explicit GIT_DIR is accepted' ' - mkdir -p wt && try_repo 1 "$here" unset unset "" unset \ "$here/1/.git" "$here" "$here" 1/ \ "$here/1/.git" "$here" "$here" 1/sub/ 2>message && diff --git a/t/t2025-worktree-add.sh b/t/t2025-worktree-add.sh index d0d2e4f7ec..2240498924 100755 --- a/t/t2025-worktree-add.sh +++ b/t/t2025-worktree-add.sh @@ -198,13 +198,25 @@ test_expect_success '"add" with <branch> omitted' ' test_cmp_rev HEAD bat ' -test_expect_success '"add" auto-vivify does not clobber existing branch' ' - test_commit c1 && - test_commit c2 && - git branch precious HEAD~1 && - test_must_fail git worktree add precious && - test_cmp_rev HEAD~1 precious && - test_path_is_missing precious +test_expect_success '"add" checks out existing branch of dwimd name' ' + git branch dwim HEAD~1 && + git worktree add dwim && + test_cmp_rev HEAD~1 dwim && + ( + cd dwim && + test_cmp_rev HEAD dwim + ) +' + +test_expect_success '"add <path>" dwim fails with checked out branch' ' + git checkout -b test-branch && + test_must_fail git worktree add test-branch && + test_path_is_missing test-branch +' + +test_expect_success '"add --force" with existing dwimd name doesnt die' ' + git checkout test-branch && + git worktree add --force test-branch ' test_expect_success '"add" no auto-vivify with --detach and <branch> omitted' ' diff --git a/t/t3418-rebase-continue.sh b/t/t3418-rebase-continue.sh index 9214d0bb51..03bf1b8a3b 100755 --- a/t/t3418-rebase-continue.sh +++ b/t/t3418-rebase-continue.sh @@ -88,6 +88,55 @@ test_expect_success 'rebase passes merge strategy options correctly' ' git rebase --continue ' +test_expect_success '--skip after failed fixup cleans commit message' ' + test_when_finished "test_might_fail git rebase --abort" && + git checkout -b with-conflicting-fixup && + test_commit wants-fixup && + test_commit "fixup! wants-fixup" wants-fixup.t 1 wants-fixup-1 && + test_commit "fixup! wants-fixup" wants-fixup.t 2 wants-fixup-2 && + test_commit "fixup! wants-fixup" wants-fixup.t 3 wants-fixup-3 && + test_must_fail env FAKE_LINES="1 fixup 2 squash 4" \ + git rebase -i HEAD~4 && + + : now there is a conflict, and comments in the commit message && + git show HEAD >out && + grep "fixup! wants-fixup" out && + + : skip and continue && + echo "cp \"\$1\" .git/copy.txt" | write_script copy-editor.sh && + (test_set_editor "$PWD/copy-editor.sh" && git rebase --skip) && + + : the user should not have had to edit the commit message && + test_path_is_missing .git/copy.txt && + + : now the comments in the commit message should have been cleaned up && + git show HEAD >out && + ! grep "fixup! wants-fixup" out && + + : now, let us ensure that "squash" is handled correctly && + git reset --hard wants-fixup-3 && + test_must_fail env FAKE_LINES="1 squash 4 squash 2 squash 4" \ + git rebase -i HEAD~4 && + + : the first squash failed, but there are two more in the chain && + (test_set_editor "$PWD/copy-editor.sh" && + test_must_fail git rebase --skip) && + + : not the final squash, no need to edit the commit message && + test_path_is_missing .git/copy.txt && + + : The first squash was skipped, therefore: && + git show HEAD >out && + test_i18ngrep "# This is a combination of 2 commits" out && + + (test_set_editor "$PWD/copy-editor.sh" && git rebase --skip) && + git show HEAD >out && + test_i18ngrep ! "# This is a combination" out && + + : Final squash failed, but there was still a squash && + test_i18ngrep "# This is a combination of 2 commits" .git/copy.txt +' + test_expect_success 'setup rerere database' ' rm -fr .git/rebase-* && git reset --hard commit-new-file-F3-on-topic-branch && diff --git a/t/t3421-rebase-topology-linear.sh b/t/t3421-rebase-topology-linear.sh index b078f93046..e7438ad06a 100755 --- a/t/t3421-rebase-topology-linear.sh +++ b/t/t3421-rebase-topology-linear.sh @@ -217,6 +217,7 @@ test_run_rebase success '' test_run_rebase success -m test_run_rebase success -i test_run_rebase failure -p +test_run_rebase success --rebase-merges # m # / diff --git a/t/t3430-rebase-merges.sh b/t/t3430-rebase-merges.sh new file mode 100755 index 0000000000..3d4dfdf7be --- /dev/null +++ b/t/t3430-rebase-merges.sh @@ -0,0 +1,244 @@ +#!/bin/sh +# +# Copyright (c) 2018 Johannes E. Schindelin +# + +test_description='git rebase -i --rebase-merges + +This test runs git rebase "interactively", retaining the branch structure by +recreating merge commits. + +Initial setup: + + -- B -- (first) + / \ + A - C - D - E - H (master) + \ / + F - G (second) +' +. ./test-lib.sh +. "$TEST_DIRECTORY"/lib-rebase.sh + +test_cmp_graph () { + cat >expect && + git log --graph --boundary --format=%s "$@" >output && + sed "s/ *$//" <output >output.trimmed && + test_cmp expect output.trimmed +} + +test_expect_success 'setup' ' + write_script replace-editor.sh <<-\EOF && + mv "$1" "$(git rev-parse --git-path ORIGINAL-TODO)" + cp script-from-scratch "$1" + EOF + + test_commit A && + git checkout -b first && + test_commit B && + git checkout master && + test_commit C && + test_commit D && + git merge --no-commit B && + test_tick && + git commit -m E && + git tag -m E E && + git checkout -b second C && + test_commit F && + test_commit G && + git checkout master && + git merge --no-commit G && + test_tick && + git commit -m H && + git tag -m H H +' + +test_expect_success 'create completely different structure' ' + cat >script-from-scratch <<-\EOF && + label onto + + # onebranch + pick G + pick D + label onebranch + + # second + reset onto + pick B + label second + + reset onto + merge -C H second + merge onebranch # Merge the topic branch '\''onebranch'\'' + EOF + test_config sequence.editor \""$PWD"/replace-editor.sh\" && + test_tick && + git rebase -i -r A && + test_cmp_graph <<-\EOF + * Merge the topic branch '\''onebranch'\'' + |\ + | * D + | * G + * | H + |\ \ + | |/ + |/| + | * B + |/ + * A + EOF +' + +test_expect_success 'generate correct todo list' ' + cat >expect <<-\EOF && + label onto + + reset onto + pick d9df450 B + label E + + reset onto + pick 5dee784 C + label branch-point + pick ca2c861 F + pick 088b00a G + label H + + reset branch-point # C + pick 12bd07b D + merge -C 2051b56 E # E + merge -C 233d48a H # H + + EOF + + grep -v "^#" <.git/ORIGINAL-TODO >output && + test_cmp expect output +' + +test_expect_success '`reset` refuses to overwrite untracked files' ' + git checkout -b refuse-to-reset && + test_commit dont-overwrite-untracked && + git checkout @{-1} && + : >dont-overwrite-untracked.t && + echo "reset refs/tags/dont-overwrite-untracked" >script-from-scratch && + test_config sequence.editor \""$PWD"/replace-editor.sh\" && + test_must_fail git rebase -r HEAD && + git rebase --abort +' + +test_expect_success 'failed `merge` writes patch (may be rescheduled, too)' ' + test_when_finished "test_might_fail git rebase --abort" && + git checkout -b conflicting-merge A && + + : fail because of conflicting untracked file && + >G.t && + echo "merge -C H G" >script-from-scratch && + test_config sequence.editor \""$PWD"/replace-editor.sh\" && + test_tick && + test_must_fail git rebase -ir HEAD && + grep "^merge -C .* G$" .git/rebase-merge/done && + grep "^merge -C .* G$" .git/rebase-merge/git-rebase-todo && + test_path_is_file .git/rebase-merge/patch && + + : fail because of merge conflict && + rm G.t .git/rebase-merge/patch && + git reset --hard && + test_commit conflicting-G G.t not-G conflicting-G && + test_must_fail git rebase --continue && + ! grep "^merge -C .* G$" .git/rebase-merge/git-rebase-todo && + test_path_is_file .git/rebase-merge/patch +' + +test_expect_success 'with a branch tip that was cherry-picked already' ' + git checkout -b already-upstream master && + base="$(git rev-parse --verify HEAD)" && + + test_commit A1 && + test_commit A2 && + git reset --hard $base && + test_commit B1 && + test_tick && + git merge -m "Merge branch A" A2 && + + git checkout -b upstream-with-a2 $base && + test_tick && + git cherry-pick A2 && + + git checkout already-upstream && + test_tick && + git rebase -i -r upstream-with-a2 && + test_cmp_graph upstream-with-a2.. <<-\EOF + * Merge branch A + |\ + | * A1 + * | B1 + |/ + o A2 + EOF +' + +test_expect_success 'do not rebase cousins unless asked for' ' + git checkout -b cousins master && + before="$(git rev-parse --verify HEAD)" && + test_tick && + git rebase -r HEAD^ && + test_cmp_rev HEAD $before && + test_tick && + git rebase --rebase-merges=rebase-cousins HEAD^ && + test_cmp_graph HEAD^.. <<-\EOF + * Merge the topic branch '\''onebranch'\'' + |\ + | * D + | * G + |/ + o H + EOF +' + +test_expect_success 'refs/rewritten/* is worktree-local' ' + git worktree add wt && + cat >wt/script-from-scratch <<-\EOF && + label xyz + exec GIT_DIR=../.git git rev-parse --verify refs/rewritten/xyz >a || : + exec git rev-parse --verify refs/rewritten/xyz >b + EOF + + test_config -C wt sequence.editor \""$PWD"/replace-editor.sh\" && + git -C wt rebase -i HEAD && + test_must_be_empty wt/a && + test_cmp_rev HEAD "$(cat wt/b)" +' + +test_expect_success 'post-rewrite hook and fixups work for merges' ' + git checkout -b post-rewrite && + test_commit same1 && + git reset --hard HEAD^ && + test_commit same2 && + git merge -m "to fix up" same1 && + echo same old same old >same2.t && + test_tick && + git commit --fixup HEAD same2.t && + fixup="$(git rev-parse HEAD)" && + + mkdir -p .git/hooks && + test_when_finished "rm .git/hooks/post-rewrite" && + echo "cat >actual" | write_script .git/hooks/post-rewrite && + + test_tick && + git rebase -i --autosquash -r HEAD^^^ && + printf "%s %s\n%s %s\n%s %s\n%s %s\n" >expect $(git rev-parse \ + $fixup^^2 HEAD^2 \ + $fixup^^ HEAD^ \ + $fixup^ HEAD \ + $fixup HEAD) && + test_cmp expect actual +' + +test_expect_success 'refuse to merge ancestors of HEAD' ' + echo "merge HEAD^" >script-from-scratch && + test_config -C wt sequence.editor \""$PWD"/replace-editor.sh\" && + before="$(git rev-parse HEAD)" && + git rebase -i HEAD && + test_cmp_rev HEAD $before +' + +test_done diff --git a/t/t3501-revert-cherry-pick.sh b/t/t3501-revert-cherry-pick.sh index ccbc118514..d1c68af8c5 100755 --- a/t/t3501-revert-cherry-pick.sh +++ b/t/t3501-revert-cherry-pick.sh @@ -141,7 +141,7 @@ test_expect_success 'cherry-pick "-" works with arguments' ' test_cmp expect actual ' -test_expect_failure 'cherry-pick works with dirty renamed file' ' +test_expect_success 'cherry-pick works with dirty renamed file' ' test_commit to-rename && git checkout -b unrelated && test_commit unrelated && @@ -150,9 +150,8 @@ test_expect_failure 'cherry-pick works with dirty renamed file' ' test_tick && git commit -m renamed && echo modified >renamed && - test_must_fail git cherry-pick refs/heads/unrelated >out && - test_i18ngrep "Refusing to lose dirty file at renamed" out && - test $(git rev-parse :0:renamed) = $(git rev-parse HEAD^:to-rename.t) && + git cherry-pick refs/heads/unrelated >out && + test $(git rev-parse :0:renamed) = $(git rev-parse HEAD~2:to-rename.t) && grep -q "^modified$" renamed ' diff --git a/t/t4014-format-patch.sh b/t/t4014-format-patch.sh index 482112ca33..6ea08fd5e9 100755 --- a/t/t4014-format-patch.sh +++ b/t/t4014-format-patch.sh @@ -1661,6 +1661,15 @@ test_expect_success 'format-patch --base with --attach' ' test_write_lines 1 2 >expect && test_cmp expect actual ' +test_expect_success 'format-patch --attach cover-letter only is non-multipart' ' + test_when_finished "rm -fr patches" && + git format-patch -o patches --cover-letter --attach=mimemime --base=HEAD~ -1 && + ! egrep "^--+mimemime" patches/0000*.patch && + egrep "^--+mimemime$" patches/0001*.patch >output && + test_line_count = 2 output && + egrep "^--+mimemime--$" patches/0001*.patch >output && + test_line_count = 1 output +' test_expect_success 'format-patch --pretty=mboxrd' ' sp=" " && diff --git a/t/t5300-pack-object.sh b/t/t5300-pack-object.sh index 65ff60f2ee..54eff03851 100755 --- a/t/t5300-pack-object.sh +++ b/t/t5300-pack-object.sh @@ -457,6 +457,11 @@ test_expect_success !PTHREADS,C_LOCALE_OUTPUT 'pack-objects --threads=N or pack. grep -F "no threads support, ignoring pack.threads" err ' +test_expect_success 'pack-objects in too-many-packs mode' ' + GIT_TEST_FULL_IN_PACK_ARRAY=1 git repack -ad && + git fsck +' + # # WARNING! # diff --git a/t/t5304-prune.sh b/t/t5304-prune.sh index f0f6e2a5f3..f20f03c103 100755 --- a/t/t5304-prune.sh +++ b/t/t5304-prune.sh @@ -320,4 +320,14 @@ test_expect_success 'prune: handle HEAD reflog in multiple worktrees' ' test_cmp expected actual ' +test_expect_success 'prune: handle expire option correctly' ' + test_must_fail git prune --expire 2>error && + test_i18ngrep "requires a value" error && + + test_must_fail git prune --expire=nyah 2>error && + test_i18ngrep "malformed expiration" error && + + git prune --no-expire +' + test_done diff --git a/t/t5310-pack-bitmaps.sh b/t/t5310-pack-bitmaps.sh index f6d600fd82..423c0a475f 100755 --- a/t/t5310-pack-bitmaps.sh +++ b/t/t5310-pack-bitmaps.sh @@ -264,9 +264,9 @@ test_expect_success 'pack with missing parent' ' ' test_expect_success JGIT 'we can read jgit bitmaps' ' - git clone . compat-jgit && + git clone --bare . compat-jgit.git && ( - cd compat-jgit && + cd compat-jgit.git && rm -f .git/objects/pack/*.bitmap && jgit gc && git rev-list --test-bitmap HEAD @@ -274,9 +274,9 @@ test_expect_success JGIT 'we can read jgit bitmaps' ' ' test_expect_success JGIT 'jgit can read our bitmaps' ' - git clone . compat-us && + git clone --bare . compat-us.git && ( - cd compat-us && + cd compat-us.git && git repack -adb && # jgit gc will barf if it does not like our bitmaps jgit gc diff --git a/t/t5318-commit-graph.sh b/t/t5318-commit-graph.sh new file mode 100755 index 0000000000..a380419b65 --- /dev/null +++ b/t/t5318-commit-graph.sh @@ -0,0 +1,224 @@ +#!/bin/sh + +test_description='commit graph' +. ./test-lib.sh + +test_expect_success 'setup full repo' ' + mkdir full && + cd "$TRASH_DIRECTORY/full" && + git init && + git config core.commitGraph true && + objdir=".git/objects" +' + +test_expect_success 'write graph with no packs' ' + cd "$TRASH_DIRECTORY/full" && + git commit-graph write --object-dir . && + test_path_is_file info/commit-graph +' + +test_expect_success 'create commits and repack' ' + cd "$TRASH_DIRECTORY/full" && + for i in $(test_seq 3) + do + test_commit $i && + git branch commits/$i + done && + git repack +' + +graph_git_two_modes() { + git -c core.graph=true $1 >output + git -c core.graph=false $1 >expect + test_cmp output expect +} + +graph_git_behavior() { + MSG=$1 + DIR=$2 + BRANCH=$3 + COMPARE=$4 + test_expect_success "check normal git operations: $MSG" ' + cd "$TRASH_DIRECTORY/$DIR" && + graph_git_two_modes "log --oneline $BRANCH" && + graph_git_two_modes "log --topo-order $BRANCH" && + graph_git_two_modes "log --graph $COMPARE..$BRANCH" && + graph_git_two_modes "branch -vv" && + graph_git_two_modes "merge-base -a $BRANCH $COMPARE" + ' +} + +graph_git_behavior 'no graph' full commits/3 commits/1 + +graph_read_expect() { + OPTIONAL="" + NUM_CHUNKS=3 + if test ! -z $2 + then + OPTIONAL=" $2" + NUM_CHUNKS=$((3 + $(echo "$2" | wc -w))) + fi + cat >expect <<- EOF + header: 43475048 1 1 $NUM_CHUNKS 0 + num_commits: $1 + chunks: oid_fanout oid_lookup commit_metadata$OPTIONAL + EOF + git commit-graph read >output && + test_cmp expect output +} + +test_expect_success 'write graph' ' + cd "$TRASH_DIRECTORY/full" && + graph1=$(git commit-graph write) && + test_path_is_file $objdir/info/commit-graph && + graph_read_expect "3" +' + +graph_git_behavior 'graph exists' full commits/3 commits/1 + +test_expect_success 'Add more commits' ' + cd "$TRASH_DIRECTORY/full" && + git reset --hard commits/1 && + for i in $(test_seq 4 5) + do + test_commit $i && + git branch commits/$i + done && + git reset --hard commits/2 && + for i in $(test_seq 6 7) + do + test_commit $i && + git branch commits/$i + done && + git reset --hard commits/2 && + git merge commits/4 && + git branch merge/1 && + git reset --hard commits/4 && + git merge commits/6 && + git branch merge/2 && + git reset --hard commits/3 && + git merge commits/5 commits/7 && + git branch merge/3 && + git repack +' + +# Current graph structure: +# +# __M3___ +# / | \ +# 3 M1 5 M2 7 +# |/ \|/ \| +# 2 4 6 +# |___/____/ +# 1 + +test_expect_success 'write graph with merges' ' + cd "$TRASH_DIRECTORY/full" && + git commit-graph write && + test_path_is_file $objdir/info/commit-graph && + graph_read_expect "10" "large_edges" +' + +graph_git_behavior 'merge 1 vs 2' full merge/1 merge/2 +graph_git_behavior 'merge 1 vs 3' full merge/1 merge/3 +graph_git_behavior 'merge 2 vs 3' full merge/2 merge/3 + +test_expect_success 'Add one more commit' ' + cd "$TRASH_DIRECTORY/full" && + test_commit 8 && + git branch commits/8 && + ls $objdir/pack | grep idx >existing-idx && + git repack && + ls $objdir/pack| grep idx | grep -v --file=existing-idx >new-idx +' + +# Current graph structure: +# +# 8 +# | +# __M3___ +# / | \ +# 3 M1 5 M2 7 +# |/ \|/ \| +# 2 4 6 +# |___/____/ +# 1 + +graph_git_behavior 'mixed mode, commit 8 vs merge 1' full commits/8 merge/1 +graph_git_behavior 'mixed mode, commit 8 vs merge 2' full commits/8 merge/2 + +test_expect_success 'write graph with new commit' ' + cd "$TRASH_DIRECTORY/full" && + git commit-graph write && + test_path_is_file $objdir/info/commit-graph && + graph_read_expect "11" "large_edges" +' + +graph_git_behavior 'full graph, commit 8 vs merge 1' full commits/8 merge/1 +graph_git_behavior 'full graph, commit 8 vs merge 2' full commits/8 merge/2 + +test_expect_success 'write graph with nothing new' ' + cd "$TRASH_DIRECTORY/full" && + git commit-graph write && + test_path_is_file $objdir/info/commit-graph && + graph_read_expect "11" "large_edges" +' + +graph_git_behavior 'cleared graph, commit 8 vs merge 1' full commits/8 merge/1 +graph_git_behavior 'cleared graph, commit 8 vs merge 2' full commits/8 merge/2 + +test_expect_success 'build graph from latest pack with closure' ' + cd "$TRASH_DIRECTORY/full" && + cat new-idx | git commit-graph write --stdin-packs && + test_path_is_file $objdir/info/commit-graph && + graph_read_expect "9" "large_edges" +' + +graph_git_behavior 'graph from pack, commit 8 vs merge 1' full commits/8 merge/1 +graph_git_behavior 'graph from pack, commit 8 vs merge 2' full commits/8 merge/2 + +test_expect_success 'build graph from commits with closure' ' + cd "$TRASH_DIRECTORY/full" && + git tag -a -m "merge" tag/merge merge/2 && + git rev-parse tag/merge >commits-in && + git rev-parse merge/1 >>commits-in && + cat commits-in | git commit-graph write --stdin-commits && + test_path_is_file $objdir/info/commit-graph && + graph_read_expect "6" +' + +graph_git_behavior 'graph from commits, commit 8 vs merge 1' full commits/8 merge/1 +graph_git_behavior 'graph from commits, commit 8 vs merge 2' full commits/8 merge/2 + +test_expect_success 'build graph from commits with append' ' + cd "$TRASH_DIRECTORY/full" && + git rev-parse merge/3 | git commit-graph write --stdin-commits --append && + test_path_is_file $objdir/info/commit-graph && + graph_read_expect "10" "large_edges" +' + +graph_git_behavior 'append graph, commit 8 vs merge 1' full commits/8 merge/1 +graph_git_behavior 'append graph, commit 8 vs merge 2' full commits/8 merge/2 + +test_expect_success 'setup bare repo' ' + cd "$TRASH_DIRECTORY" && + git clone --bare --no-local full bare && + cd bare && + git config core.commitGraph true && + baredir="./objects" +' + +graph_git_behavior 'bare repo, commit 8 vs merge 1' bare commits/8 merge/1 +graph_git_behavior 'bare repo, commit 8 vs merge 2' bare commits/8 merge/2 + +test_expect_success 'write graph in bare repo' ' + cd "$TRASH_DIRECTORY/bare" && + git commit-graph write && + test_path_is_file $baredir/info/commit-graph && + graph_read_expect "11" "large_edges" +' + +graph_git_behavior 'bare repo with graph, commit 8 vs merge 1' bare commits/8 merge/1 +graph_git_behavior 'bare repo with graph, commit 8 vs merge 2' bare commits/8 merge/2 + +test_done diff --git a/t/t5512-ls-remote.sh b/t/t5512-ls-remote.sh index 02106c9226..6a949484d0 100755 --- a/t/t5512-ls-remote.sh +++ b/t/t5512-ls-remote.sh @@ -10,6 +10,9 @@ test_expect_success setup ' test_tick && git commit -m initial && git tag mark && + git tag mark1.1 && + git tag mark1.2 && + git tag mark1.10 && git show-ref --tags -d | sed -e "s/ / /" >expected.tag && ( echo "$(git rev-parse HEAD) HEAD" @@ -39,6 +42,39 @@ test_expect_success 'ls-remote self' ' test_cmp expected.all actual ' +test_expect_success 'ls-remote --sort="version:refname" --tags self' ' + cat >expect <<-EOF && + $(git rev-parse mark) refs/tags/mark + $(git rev-parse mark1.1) refs/tags/mark1.1 + $(git rev-parse mark1.2) refs/tags/mark1.2 + $(git rev-parse mark1.10) refs/tags/mark1.10 + EOF + git ls-remote --sort="version:refname" --tags self >actual && + test_cmp expect actual +' + +test_expect_success 'ls-remote --sort="-version:refname" --tags self' ' + cat >expect <<-EOF && + $(git rev-parse mark1.10) refs/tags/mark1.10 + $(git rev-parse mark1.2) refs/tags/mark1.2 + $(git rev-parse mark1.1) refs/tags/mark1.1 + $(git rev-parse mark) refs/tags/mark + EOF + git ls-remote --sort="-version:refname" --tags self >actual && + test_cmp expect actual +' + +test_expect_success 'ls-remote --sort="-refname" --tags self' ' + cat >expect <<-EOF && + $(git rev-parse mark1.2) refs/tags/mark1.2 + $(git rev-parse mark1.10) refs/tags/mark1.10 + $(git rev-parse mark1.1) refs/tags/mark1.1 + $(git rev-parse mark) refs/tags/mark + EOF + git ls-remote --sort="-refname" --tags self >actual && + test_cmp expect actual +' + test_expect_success 'dies when no remote specified and no default remotes found' ' test_must_fail git ls-remote ' @@ -131,7 +167,7 @@ test_expect_success 'Report no-match with --exit-code' ' test_expect_success 'Report match with --exit-code' ' git ls-remote --exit-code other.git "refs/tags/*" >actual && - git ls-remote . tags/mark >expect && + git ls-remote . tags/mark* >expect && test_cmp expect actual ' @@ -171,13 +207,17 @@ test_expect_success 'overrides work between mixed transfer/upload-pack hideRefs' ' test_expect_success 'ls-remote --symref' ' - cat >expect <<-\EOF && + git fetch origin && + cat >expect <<-EOF && ref: refs/heads/master HEAD - 1bd44cb9d13204b0fe1958db0082f5028a16eb3a HEAD - 1bd44cb9d13204b0fe1958db0082f5028a16eb3a refs/heads/master - 1bd44cb9d13204b0fe1958db0082f5028a16eb3a refs/remotes/origin/HEAD - 1bd44cb9d13204b0fe1958db0082f5028a16eb3a refs/remotes/origin/master - 1bd44cb9d13204b0fe1958db0082f5028a16eb3a refs/tags/mark + $(git rev-parse HEAD) HEAD + $(git rev-parse refs/heads/master) refs/heads/master + $(git rev-parse HEAD) refs/remotes/origin/HEAD + $(git rev-parse refs/remotes/origin/master) refs/remotes/origin/master + $(git rev-parse refs/tags/mark) refs/tags/mark + $(git rev-parse refs/tags/mark1.1) refs/tags/mark1.1 + $(git rev-parse refs/tags/mark1.10) refs/tags/mark1.10 + $(git rev-parse refs/tags/mark1.2) refs/tags/mark1.2 EOF git ls-remote --symref >actual && test_cmp expect actual diff --git a/t/t5516-fetch-push.sh b/t/t5516-fetch-push.sh index 82239138d5..3e8940eee5 100755 --- a/t/t5516-fetch-push.sh +++ b/t/t5516-fetch-push.sh @@ -94,6 +94,9 @@ mk_child() { } check_push_result () { + test $# -ge 3 || + error "bug in the test script: check_push_result requires at least 3 parameters" + repo_name="$1" shift @@ -553,10 +556,7 @@ test_expect_success 'branch.*.pushremote config order is irrelevant' ' test_expect_success 'push with dry-run' ' mk_test testrepo heads/master && - ( - cd testrepo && - old_commit=$(git show-ref -s --verify refs/heads/master) - ) && + old_commit=$(git -C testrepo show-ref -s --verify refs/heads/master) && git push --dry-run testrepo : && check_push_result testrepo $old_commit heads/master ' @@ -612,7 +612,7 @@ test_expect_success 'push does not update local refs on failure' ' chmod +x testrepo/.git/hooks/pre-receive && ( cd child && - git pull .. master + git pull .. master && test_must_fail git push && test $(git rev-parse master) != \ $(git rev-parse remotes/origin/master) diff --git a/t/t5541-http-push-smart.sh b/t/t5541-http-push-smart.sh index 21340e89c9..a2af693068 100755 --- a/t/t5541-http-push-smart.sh +++ b/t/t5541-http-push-smart.sh @@ -377,5 +377,17 @@ test_expect_success 'push status output scrubs password' ' grep "^To $HTTPD_URL/smart/test_repo.git" status ' +test_expect_success 'colorize errors/hints' ' + cd "$ROOT_PATH"/test_repo_clone && + test_must_fail git -c color.transport=always -c color.advice=always \ + -c color.push=always \ + push origin origin/master^:master 2>act && + test_decode_color <act >decoded && + test_i18ngrep "<RED>.*rejected.*<RESET>" decoded && + test_i18ngrep "<RED>error: failed to push some refs" decoded && + test_i18ngrep "<YELLOW>hint: " decoded && + test_i18ngrep ! "^hint: " decoded +' + stop_httpd test_done diff --git a/t/t5550-http-fetch-dumb.sh b/t/t5550-http-fetch-dumb.sh index 8552184e74..6d7d88ccc9 100755 --- a/t/t5550-http-fetch-dumb.sh +++ b/t/t5550-http-fetch-dumb.sh @@ -169,6 +169,17 @@ test_expect_success 'fetch changes via manual http-fetch' ' test_cmp file clone2/file ' +test_expect_success 'manual http-fetch without -a works just as well' ' + cp -R clone-tmpl clone3 && + + HEAD=$(git rev-parse --verify HEAD) && + (cd clone3 && + git http-fetch -w heads/master-new $HEAD $(git config remote.origin.url) && + git checkout master-new && + test $HEAD = $(git rev-parse --verify HEAD)) && + test_cmp file clone3/file +' + test_expect_success 'http remote detects correct HEAD' ' git push public master:other && (cd clone && diff --git a/t/t5701-git-serve.sh b/t/t5701-git-serve.sh new file mode 100755 index 0000000000..011a5796db --- /dev/null +++ b/t/t5701-git-serve.sh @@ -0,0 +1,197 @@ +#!/bin/sh + +test_description='test git-serve and server commands' + +. ./test-lib.sh + +test_expect_success 'test capability advertisement' ' + cat >expect <<-EOF && + version 2 + agent=git/$(git version | cut -d" " -f3) + ls-refs + fetch=shallow + server-option + 0000 + EOF + + git serve --advertise-capabilities >out && + test-pkt-line unpack <out >actual && + test_cmp actual expect +' + +test_expect_success 'stateless-rpc flag does not list capabilities' ' + # Empty request + test-pkt-line pack >in <<-EOF && + 0000 + EOF + git serve --stateless-rpc >out <in && + test_must_be_empty out && + + # EOF + git serve --stateless-rpc >out && + test_must_be_empty out +' + +test_expect_success 'request invalid capability' ' + test-pkt-line pack >in <<-EOF && + foobar + 0000 + EOF + test_must_fail git serve --stateless-rpc 2>err <in && + test_i18ngrep "unknown capability" err +' + +test_expect_success 'request with no command' ' + test-pkt-line pack >in <<-EOF && + agent=git/test + 0000 + EOF + test_must_fail git serve --stateless-rpc 2>err <in && + test_i18ngrep "no command requested" err +' + +test_expect_success 'request invalid command' ' + test-pkt-line pack >in <<-EOF && + command=foo + agent=git/test + 0000 + EOF + test_must_fail git serve --stateless-rpc 2>err <in && + test_i18ngrep "invalid command" err +' + +# Test the basics of ls-refs +# +test_expect_success 'setup some refs and tags' ' + test_commit one && + git branch dev master && + test_commit two && + git symbolic-ref refs/heads/release refs/heads/master && + git tag -a -m "annotated tag" annotated-tag +' + +test_expect_success 'basics of ls-refs' ' + test-pkt-line pack >in <<-EOF && + command=ls-refs + 0000 + EOF + + cat >expect <<-EOF && + $(git rev-parse HEAD) HEAD + $(git rev-parse refs/heads/dev) refs/heads/dev + $(git rev-parse refs/heads/master) refs/heads/master + $(git rev-parse refs/heads/release) refs/heads/release + $(git rev-parse refs/tags/annotated-tag) refs/tags/annotated-tag + $(git rev-parse refs/tags/one) refs/tags/one + $(git rev-parse refs/tags/two) refs/tags/two + 0000 + EOF + + git serve --stateless-rpc <in >out && + test-pkt-line unpack <out >actual && + test_cmp actual expect +' + +test_expect_success 'basic ref-prefixes' ' + test-pkt-line pack >in <<-EOF && + command=ls-refs + 0001 + ref-prefix refs/heads/master + ref-prefix refs/tags/one + 0000 + EOF + + cat >expect <<-EOF && + $(git rev-parse refs/heads/master) refs/heads/master + $(git rev-parse refs/tags/one) refs/tags/one + 0000 + EOF + + git serve --stateless-rpc <in >out && + test-pkt-line unpack <out >actual && + test_cmp actual expect +' + +test_expect_success 'refs/heads prefix' ' + test-pkt-line pack >in <<-EOF && + command=ls-refs + 0001 + ref-prefix refs/heads/ + 0000 + EOF + + cat >expect <<-EOF && + $(git rev-parse refs/heads/dev) refs/heads/dev + $(git rev-parse refs/heads/master) refs/heads/master + $(git rev-parse refs/heads/release) refs/heads/release + 0000 + EOF + + git serve --stateless-rpc <in >out && + test-pkt-line unpack <out >actual && + test_cmp actual expect +' + +test_expect_success 'peel parameter' ' + test-pkt-line pack >in <<-EOF && + command=ls-refs + 0001 + peel + ref-prefix refs/tags/ + 0000 + EOF + + cat >expect <<-EOF && + $(git rev-parse refs/tags/annotated-tag) refs/tags/annotated-tag peeled:$(git rev-parse refs/tags/annotated-tag^{}) + $(git rev-parse refs/tags/one) refs/tags/one + $(git rev-parse refs/tags/two) refs/tags/two + 0000 + EOF + + git serve --stateless-rpc <in >out && + test-pkt-line unpack <out >actual && + test_cmp actual expect +' + +test_expect_success 'symrefs parameter' ' + test-pkt-line pack >in <<-EOF && + command=ls-refs + 0001 + symrefs + ref-prefix refs/heads/ + 0000 + EOF + + cat >expect <<-EOF && + $(git rev-parse refs/heads/dev) refs/heads/dev + $(git rev-parse refs/heads/master) refs/heads/master + $(git rev-parse refs/heads/release) refs/heads/release symref-target:refs/heads/master + 0000 + EOF + + git serve --stateless-rpc <in >out && + test-pkt-line unpack <out >actual && + test_cmp actual expect +' + +test_expect_success 'sending server-options' ' + test-pkt-line pack >in <<-EOF && + command=ls-refs + server-option=hello + server-option=world + 0001 + ref-prefix HEAD + 0000 + EOF + + cat >expect <<-EOF && + $(git rev-parse HEAD) HEAD + 0000 + EOF + + git serve --stateless-rpc <in >out && + test-pkt-line unpack <out >actual && + test_cmp actual expect +' + +test_done diff --git a/t/t5702-protocol-v2.sh b/t/t5702-protocol-v2.sh new file mode 100755 index 0000000000..dbfd0691c0 --- /dev/null +++ b/t/t5702-protocol-v2.sh @@ -0,0 +1,305 @@ +#!/bin/sh + +test_description='test git wire-protocol version 2' + +TEST_NO_CREATE_REPO=1 + +. ./test-lib.sh + +# Test protocol v2 with 'git://' transport +# +. "$TEST_DIRECTORY"/lib-git-daemon.sh +start_git_daemon --export-all --enable=receive-pack +daemon_parent=$GIT_DAEMON_DOCUMENT_ROOT_PATH/parent + +test_expect_success 'create repo to be served by git-daemon' ' + git init "$daemon_parent" && + test_commit -C "$daemon_parent" one +' + +test_expect_success 'list refs with git:// using protocol v2' ' + test_when_finished "rm -f log" && + + GIT_TRACE_PACKET="$(pwd)/log" git -c protocol.version=2 \ + ls-remote --symref "$GIT_DAEMON_URL/parent" >actual && + + # Client requested to use protocol v2 + grep "git> .*\\\0\\\0version=2\\\0$" log && + # Server responded using protocol v2 + grep "git< version 2" log && + + git ls-remote --symref "$GIT_DAEMON_URL/parent" >expect && + test_cmp actual expect +' + +test_expect_success 'ref advertisment is filtered with ls-remote using protocol v2' ' + test_when_finished "rm -f log" && + + GIT_TRACE_PACKET="$(pwd)/log" git -c protocol.version=2 \ + ls-remote "$GIT_DAEMON_URL/parent" master >actual && + + cat >expect <<-EOF && + $(git -C "$daemon_parent" rev-parse refs/heads/master)$(printf "\t")refs/heads/master + EOF + + test_cmp actual expect +' + +test_expect_success 'clone with git:// using protocol v2' ' + test_when_finished "rm -f log" && + + GIT_TRACE_PACKET="$(pwd)/log" git -c protocol.version=2 \ + clone "$GIT_DAEMON_URL/parent" daemon_child && + + git -C daemon_child log -1 --format=%s >actual && + git -C "$daemon_parent" log -1 --format=%s >expect && + test_cmp expect actual && + + # Client requested to use protocol v2 + grep "clone> .*\\\0\\\0version=2\\\0$" log && + # Server responded using protocol v2 + grep "clone< version 2" log +' + +test_expect_success 'fetch with git:// using protocol v2' ' + test_when_finished "rm -f log" && + + test_commit -C "$daemon_parent" two && + + GIT_TRACE_PACKET="$(pwd)/log" git -C daemon_child -c protocol.version=2 \ + fetch && + + git -C daemon_child log -1 --format=%s origin/master >actual && + git -C "$daemon_parent" log -1 --format=%s >expect && + test_cmp expect actual && + + # Client requested to use protocol v2 + grep "fetch> .*\\\0\\\0version=2\\\0$" log && + # Server responded using protocol v2 + grep "fetch< version 2" log +' + +test_expect_success 'pull with git:// using protocol v2' ' + test_when_finished "rm -f log" && + + GIT_TRACE_PACKET="$(pwd)/log" git -C daemon_child -c protocol.version=2 \ + pull && + + git -C daemon_child log -1 --format=%s >actual && + git -C "$daemon_parent" log -1 --format=%s >expect && + test_cmp expect actual && + + # Client requested to use protocol v2 + grep "fetch> .*\\\0\\\0version=2\\\0$" log && + # Server responded using protocol v2 + grep "fetch< version 2" log +' + +test_expect_success 'push with git:// and a config of v2 does not request v2' ' + test_when_finished "rm -f log" && + + # Till v2 for push is designed, make sure that if a client has + # protocol.version configured to use v2, that the client instead falls + # back and uses v0. + + test_commit -C daemon_child three && + + # Push to another branch, as the target repository has the + # master branch checked out and we cannot push into it. + GIT_TRACE_PACKET="$(pwd)/log" git -C daemon_child -c protocol.version=2 \ + push origin HEAD:client_branch && + + git -C daemon_child log -1 --format=%s >actual && + git -C "$daemon_parent" log -1 --format=%s client_branch >expect && + test_cmp expect actual && + + # Client requested to use protocol v2 + ! grep "push> .*\\\0\\\0version=2\\\0$" log && + # Server responded using protocol v2 + ! grep "push< version 2" log +' + +stop_git_daemon + +# Test protocol v2 with 'file://' transport +# +test_expect_success 'create repo to be served by file:// transport' ' + git init file_parent && + test_commit -C file_parent one +' + +test_expect_success 'list refs with file:// using protocol v2' ' + test_when_finished "rm -f log" && + + GIT_TRACE_PACKET="$(pwd)/log" git -c protocol.version=2 \ + ls-remote --symref "file://$(pwd)/file_parent" >actual && + + # Server responded using protocol v2 + grep "git< version 2" log && + + git ls-remote --symref "file://$(pwd)/file_parent" >expect && + test_cmp actual expect +' + +test_expect_success 'ref advertisment is filtered with ls-remote using protocol v2' ' + test_when_finished "rm -f log" && + + GIT_TRACE_PACKET="$(pwd)/log" git -c protocol.version=2 \ + ls-remote "file://$(pwd)/file_parent" master >actual && + + cat >expect <<-EOF && + $(git -C file_parent rev-parse refs/heads/master)$(printf "\t")refs/heads/master + EOF + + test_cmp actual expect +' + +test_expect_success 'server-options are sent when using ls-remote' ' + test_when_finished "rm -f log" && + + GIT_TRACE_PACKET="$(pwd)/log" git -c protocol.version=2 \ + ls-remote -o hello -o world "file://$(pwd)/file_parent" master >actual && + + cat >expect <<-EOF && + $(git -C file_parent rev-parse refs/heads/master)$(printf "\t")refs/heads/master + EOF + + test_cmp actual expect && + grep "server-option=hello" log && + grep "server-option=world" log +' + + +test_expect_success 'clone with file:// using protocol v2' ' + test_when_finished "rm -f log" && + + GIT_TRACE_PACKET="$(pwd)/log" git -c protocol.version=2 \ + clone "file://$(pwd)/file_parent" file_child && + + git -C file_child log -1 --format=%s >actual && + git -C file_parent log -1 --format=%s >expect && + test_cmp expect actual && + + # Server responded using protocol v2 + grep "clone< version 2" log +' + +test_expect_success 'fetch with file:// using protocol v2' ' + test_when_finished "rm -f log" && + + test_commit -C file_parent two && + + GIT_TRACE_PACKET="$(pwd)/log" git -C file_child -c protocol.version=2 \ + fetch origin && + + git -C file_child log -1 --format=%s origin/master >actual && + git -C file_parent log -1 --format=%s >expect && + test_cmp expect actual && + + # Server responded using protocol v2 + grep "fetch< version 2" log +' + +test_expect_success 'ref advertisment is filtered during fetch using protocol v2' ' + test_when_finished "rm -f log" && + + test_commit -C file_parent three && + + GIT_TRACE_PACKET="$(pwd)/log" git -C file_child -c protocol.version=2 \ + fetch origin master && + + git -C file_child log -1 --format=%s origin/master >actual && + git -C file_parent log -1 --format=%s >expect && + test_cmp expect actual && + + ! grep "refs/tags/one" log && + ! grep "refs/tags/two" log && + ! grep "refs/tags/three" log +' + +test_expect_success 'server-options are sent when fetching' ' + test_when_finished "rm -f log" && + + test_commit -C file_parent four && + + GIT_TRACE_PACKET="$(pwd)/log" git -C file_child -c protocol.version=2 \ + fetch -o hello -o world origin master && + + git -C file_child log -1 --format=%s origin/master >actual && + git -C file_parent log -1 --format=%s >expect && + test_cmp expect actual && + + grep "server-option=hello" log && + grep "server-option=world" log +' + +# Test protocol v2 with 'http://' transport +# +. "$TEST_DIRECTORY"/lib-httpd.sh +start_httpd + +test_expect_success 'create repo to be served by http:// transport' ' + git init "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" && + git -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" config http.receivepack true && + test_commit -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" one +' + +test_expect_success 'clone with http:// using protocol v2' ' + test_when_finished "rm -f log" && + + GIT_TRACE_PACKET="$(pwd)/log" GIT_TRACE_CURL="$(pwd)/log" git -c protocol.version=2 \ + clone "$HTTPD_URL/smart/http_parent" http_child && + + git -C http_child log -1 --format=%s >actual && + git -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" log -1 --format=%s >expect && + test_cmp expect actual && + + # Client requested to use protocol v2 + grep "Git-Protocol: version=2" log && + # Server responded using protocol v2 + grep "git< version 2" log +' + +test_expect_success 'fetch with http:// using protocol v2' ' + test_when_finished "rm -f log" && + + test_commit -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" two && + + GIT_TRACE_PACKET="$(pwd)/log" git -C http_child -c protocol.version=2 \ + fetch && + + git -C http_child log -1 --format=%s origin/master >actual && + git -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" log -1 --format=%s >expect && + test_cmp expect actual && + + # Server responded using protocol v2 + grep "git< version 2" log +' + +test_expect_success 'push with http:// and a config of v2 does not request v2' ' + test_when_finished "rm -f log" && + # Till v2 for push is designed, make sure that if a client has + # protocol.version configured to use v2, that the client instead falls + # back and uses v0. + + test_commit -C http_child three && + + # Push to another branch, as the target repository has the + # master branch checked out and we cannot push into it. + GIT_TRACE_PACKET="$(pwd)/log" git -C http_child -c protocol.version=2 \ + push origin HEAD:client_branch && + + git -C http_child log -1 --format=%s >actual && + git -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" log -1 --format=%s client_branch >expect && + test_cmp expect actual && + + # Client didnt request to use protocol v2 + ! grep "Git-Protocol: version=2" log && + # Server didnt respond using protocol v2 + ! grep "git< version 2" log +' + + +stop_httpd + +test_done diff --git a/t/t6001-rev-list-graft.sh b/t/t6001-rev-list-graft.sh index 05ddc69cf2..7504ba4751 100755 --- a/t/t6001-rev-list-graft.sh +++ b/t/t6001-rev-list-graft.sh @@ -110,4 +110,13 @@ do " done + +test_expect_success 'show advice that grafts are deprecated' ' + git show HEAD 2>err && + test_i18ngrep "git replace" err && + test_config advice.graftFileDeprecated false && + git show HEAD 2>err && + test_i18ngrep ! "git replace" err +' + test_done diff --git a/t/t6022-merge-rename.sh b/t/t6022-merge-rename.sh index 48747e71df..b760c223c6 100755 --- a/t/t6022-merge-rename.sh +++ b/t/t6022-merge-rename.sh @@ -247,7 +247,7 @@ test_expect_success 'merge of identical changes in a renamed file' ' git reset --hard HEAD^ && git checkout change && GIT_MERGE_VERBOSITY=3 git merge change+rename >out && - test_i18ngrep "^Skipped B" out + test_i18ngrep ! "^Skipped B" out ' test_expect_success 'setup for rename + d/f conflicts' ' diff --git a/t/t6043-merge-rename-directories.sh b/t/t6043-merge-rename-directories.sh new file mode 100755 index 0000000000..2e28f2908d --- /dev/null +++ b/t/t6043-merge-rename-directories.sh @@ -0,0 +1,3998 @@ +#!/bin/sh + +test_description="recursive merge with directory renames" +# includes checking of many corner cases, with a similar methodology to: +# t6042: corner cases with renames but not criss-cross merges +# t6036: corner cases with both renames and criss-cross merges +# +# The setup for all of them, pictorially, is: +# +# A +# o +# / \ +# O o ? +# \ / +# o +# B +# +# To help make it easier to follow the flow of tests, they have been +# divided into sections and each test will start with a quick explanation +# of what commits O, A, and B contain. +# +# Notation: +# z/{b,c} means files z/b and z/c both exist +# x/d_1 means file x/d exists with content d1. (Purpose of the +# underscore notation is to differentiate different +# files that might be renamed into each other's paths.) + +. ./test-lib.sh + + +########################################################################### +# SECTION 1: Basic cases we should be able to handle +########################################################################### + +# Testcase 1a, Basic directory rename. +# Commit O: z/{b,c} +# Commit A: y/{b,c} +# Commit B: z/{b,c,d,e/f} +# Expected: y/{b,c,d,e/f} + +test_expect_success '1a-setup: Simple directory rename detection' ' + test_create_repo 1a && + ( + cd 1a && + + mkdir z && + echo b >z/b && + echo c >z/c && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z y && + test_tick && + git commit -m "A" && + + git checkout B && + echo d >z/d && + mkdir z/e && + echo f >z/e/f && + git add z/d z/e/f && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '1a-check: Simple directory rename detection' ' + ( + cd 1a && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 4 out && + + git rev-parse >actual \ + HEAD:y/b HEAD:y/c HEAD:y/d HEAD:y/e/f && + git rev-parse >expect \ + O:z/b O:z/c B:z/d B:z/e/f && + test_cmp expect actual && + + git hash-object y/d >actual && + git rev-parse B:z/d >expect && + test_cmp expect actual && + + test_must_fail git rev-parse HEAD:z/d && + test_must_fail git rev-parse HEAD:z/e/f && + test_path_is_missing z/d && + test_path_is_missing z/e/f + ) +' + +# Testcase 1b, Merge a directory with another +# Commit O: z/{b,c}, y/d +# Commit A: z/{b,c,e}, y/d +# Commit B: y/{b,c,d} +# Expected: y/{b,c,d,e} + +test_expect_success '1b-setup: Merge a directory with another' ' + test_create_repo 1b && + ( + cd 1b && + + mkdir z && + echo b >z/b && + echo c >z/c && + mkdir y && + echo d >y/d && + git add z y && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + echo e >z/e && + git add z/e && + test_tick && + git commit -m "A" && + + git checkout B && + git mv z/b y && + git mv z/c y && + rmdir z && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '1b-check: Merge a directory with another' ' + ( + cd 1b && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 4 out && + + git rev-parse >actual \ + HEAD:y/b HEAD:y/c HEAD:y/d HEAD:y/e && + git rev-parse >expect \ + O:z/b O:z/c O:y/d A:z/e && + test_cmp expect actual && + test_must_fail git rev-parse HEAD:z/e + ) +' + +# Testcase 1c, Transitive renaming +# (Related to testcases 3a and 6d -- when should a transitive rename apply?) +# (Related to testcases 9c and 9d -- can transitivity repeat?) +# (Related to testcase 12b -- joint-transitivity?) +# Commit O: z/{b,c}, x/d +# Commit A: y/{b,c}, x/d +# Commit B: z/{b,c,d} +# Expected: y/{b,c,d} (because x/d -> z/d -> y/d) + +test_expect_success '1c-setup: Transitive renaming' ' + test_create_repo 1c && + ( + cd 1c && + + mkdir z && + echo b >z/b && + echo c >z/c && + mkdir x && + echo d >x/d && + git add z x && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z y && + test_tick && + git commit -m "A" && + + git checkout B && + git mv x/d z/d && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '1c-check: Transitive renaming' ' + ( + cd 1c && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 3 out && + + git rev-parse >actual \ + HEAD:y/b HEAD:y/c HEAD:y/d && + git rev-parse >expect \ + O:z/b O:z/c O:x/d && + test_cmp expect actual && + test_must_fail git rev-parse HEAD:x/d && + test_must_fail git rev-parse HEAD:z/d && + test_path_is_missing z/d + ) +' + +# Testcase 1d, Directory renames (merging two directories into one new one) +# cause a rename/rename(2to1) conflict +# (Related to testcases 1c and 7b) +# Commit O. z/{b,c}, y/{d,e} +# Commit A. x/{b,c}, y/{d,e,m,wham_1} +# Commit B. z/{b,c,n,wham_2}, x/{d,e} +# Expected: x/{b,c,d,e,m,n}, CONFLICT:(y/wham_1 & z/wham_2 -> x/wham) +# Note: y/m & z/n should definitely move into x. By the same token, both +# y/wham_1 & z/wham_2 should too...giving us a conflict. + +test_expect_success '1d-setup: Directory renames cause a rename/rename(2to1) conflict' ' + test_create_repo 1d && + ( + cd 1d && + + mkdir z && + echo b >z/b && + echo c >z/c && + mkdir y && + echo d >y/d && + echo e >y/e && + git add z y && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z x && + echo m >y/m && + echo wham1 >y/wham && + git add y && + test_tick && + git commit -m "A" && + + git checkout B && + git mv y x && + echo n >z/n && + echo wham2 >z/wham && + git add z && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '1d-check: Directory renames cause a rename/rename(2to1) conflict' ' + ( + cd 1d && + + git checkout A^0 && + + test_must_fail git merge -s recursive B^0 >out && + test_i18ngrep "CONFLICT (rename/rename)" out && + + git ls-files -s >out && + test_line_count = 8 out && + git ls-files -u >out && + test_line_count = 2 out && + git ls-files -o >out && + test_line_count = 3 out && + + git rev-parse >actual \ + :0:x/b :0:x/c :0:x/d :0:x/e :0:x/m :0:x/n && + git rev-parse >expect \ + O:z/b O:z/c O:y/d O:y/e A:y/m B:z/n && + test_cmp expect actual && + + test_must_fail git rev-parse :0:x/wham && + git rev-parse >actual \ + :2:x/wham :3:x/wham && + git rev-parse >expect \ + A:y/wham B:z/wham && + test_cmp expect actual && + + test_path_is_missing x/wham && + test_path_is_file x/wham~HEAD && + test_path_is_file x/wham~B^0 && + + git hash-object >actual \ + x/wham~HEAD x/wham~B^0 && + git rev-parse >expect \ + A:y/wham B:z/wham && + test_cmp expect actual + ) +' + +# Testcase 1e, Renamed directory, with all filenames being renamed too +# (Related to testcases 9f & 9g) +# Commit O: z/{oldb,oldc} +# Commit A: y/{newb,newc} +# Commit B: z/{oldb,oldc,d} +# Expected: y/{newb,newc,d} + +test_expect_success '1e-setup: Renamed directory, with all files being renamed too' ' + test_create_repo 1e && + ( + cd 1e && + + mkdir z && + echo b >z/oldb && + echo c >z/oldc && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + mkdir y && + git mv z/oldb y/newb && + git mv z/oldc y/newc && + test_tick && + git commit -m "A" && + + git checkout B && + echo d >z/d && + git add z/d && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '1e-check: Renamed directory, with all files being renamed too' ' + ( + cd 1e && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 3 out && + + git rev-parse >actual \ + HEAD:y/newb HEAD:y/newc HEAD:y/d && + git rev-parse >expect \ + O:z/oldb O:z/oldc B:z/d && + test_cmp expect actual && + test_must_fail git rev-parse HEAD:z/d + ) +' + +# Testcase 1f, Split a directory into two other directories +# (Related to testcases 3a, all of section 2, and all of section 4) +# Commit O: z/{b,c,d,e,f} +# Commit A: z/{b,c,d,e,f,g} +# Commit B: y/{b,c}, x/{d,e,f} +# Expected: y/{b,c}, x/{d,e,f,g} + +test_expect_success '1f-setup: Split a directory into two other directories' ' + test_create_repo 1f && + ( + cd 1f && + + mkdir z && + echo b >z/b && + echo c >z/c && + echo d >z/d && + echo e >z/e && + echo f >z/f && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + echo g >z/g && + git add z/g && + test_tick && + git commit -m "A" && + + git checkout B && + mkdir y && + mkdir x && + git mv z/b y/ && + git mv z/c y/ && + git mv z/d x/ && + git mv z/e x/ && + git mv z/f x/ && + rmdir z && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '1f-check: Split a directory into two other directories' ' + ( + cd 1f && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 6 out && + + git rev-parse >actual \ + HEAD:y/b HEAD:y/c HEAD:x/d HEAD:x/e HEAD:x/f HEAD:x/g && + git rev-parse >expect \ + O:z/b O:z/c O:z/d O:z/e O:z/f A:z/g && + test_cmp expect actual && + test_path_is_missing z/g && + test_must_fail git rev-parse HEAD:z/g + ) +' + +########################################################################### +# Rules suggested by testcases in section 1: +# +# We should still detect the directory rename even if it wasn't just +# the directory renamed, but the files within it. (see 1b) +# +# If renames split a directory into two or more others, the directory +# with the most renames, "wins" (see 1c). However, see the testcases +# in section 2, plus testcases 3a and 4a. +########################################################################### + + +########################################################################### +# SECTION 2: Split into multiple directories, with equal number of paths +# +# Explore the splitting-a-directory rules a bit; what happens in the +# edge cases? +# +# Note that there is a closely related case of a directory not being +# split on either side of history, but being renamed differently on +# each side. See testcase 8e for that. +########################################################################### + +# Testcase 2a, Directory split into two on one side, with equal numbers of paths +# Commit O: z/{b,c} +# Commit A: y/b, w/c +# Commit B: z/{b,c,d} +# Expected: y/b, w/c, z/d, with warning about z/ -> (y/ vs. w/) conflict +test_expect_success '2a-setup: Directory split into two on one side, with equal numbers of paths' ' + test_create_repo 2a && + ( + cd 2a && + + mkdir z && + echo b >z/b && + echo c >z/c && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + mkdir y && + mkdir w && + git mv z/b y/ && + git mv z/c w/ && + test_tick && + git commit -m "A" && + + git checkout B && + echo d >z/d && + git add z/d && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '2a-check: Directory split into two on one side, with equal numbers of paths' ' + ( + cd 2a && + + git checkout A^0 && + + test_must_fail git merge -s recursive B^0 >out && + test_i18ngrep "CONFLICT.*directory rename split" out && + + git ls-files -s >out && + test_line_count = 3 out && + git ls-files -u >out && + test_line_count = 0 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + :0:y/b :0:w/c :0:z/d && + git rev-parse >expect \ + O:z/b O:z/c B:z/d && + test_cmp expect actual + ) +' + +# Testcase 2b, Directory split into two on one side, with equal numbers of paths +# Commit O: z/{b,c} +# Commit A: y/b, w/c +# Commit B: z/{b,c}, x/d +# Expected: y/b, w/c, x/d; No warning about z/ -> (y/ vs. w/) conflict +test_expect_success '2b-setup: Directory split into two on one side, with equal numbers of paths' ' + test_create_repo 2b && + ( + cd 2b && + + mkdir z && + echo b >z/b && + echo c >z/c && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + mkdir y && + mkdir w && + git mv z/b y/ && + git mv z/c w/ && + test_tick && + git commit -m "A" && + + git checkout B && + mkdir x && + echo d >x/d && + git add x/d && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '2b-check: Directory split into two on one side, with equal numbers of paths' ' + ( + cd 2b && + + git checkout A^0 && + + git merge -s recursive B^0 >out && + + git ls-files -s >out && + test_line_count = 3 out && + git ls-files -u >out && + test_line_count = 0 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + :0:y/b :0:w/c :0:x/d && + git rev-parse >expect \ + O:z/b O:z/c B:x/d && + test_cmp expect actual && + test_i18ngrep ! "CONFLICT.*directory rename split" out + ) +' + +########################################################################### +# Rules suggested by section 2: +# +# None; the rule was already covered in section 1. These testcases are +# here just to make sure the conflict resolution and necessary warning +# messages are handled correctly. +########################################################################### + + +########################################################################### +# SECTION 3: Path in question is the source path for some rename already +# +# Combining cases from Section 1 and trying to handle them could lead to +# directory renaming detection being over-applied. So, this section +# provides some good testcases to check that the implementation doesn't go +# too far. +########################################################################### + +# Testcase 3a, Avoid implicit rename if involved as source on other side +# (Related to testcases 1c, 1f, and 9h) +# Commit O: z/{b,c,d} +# Commit A: z/{b,c,d} (no change) +# Commit B: y/{b,c}, x/d +# Expected: y/{b,c}, x/d +test_expect_success '3a-setup: Avoid implicit rename if involved as source on other side' ' + test_create_repo 3a && + ( + cd 3a && + + mkdir z && + echo b >z/b && + echo c >z/c && + echo d >z/d && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + test_tick && + git commit --allow-empty -m "A" && + + git checkout B && + mkdir y && + mkdir x && + git mv z/b y/ && + git mv z/c y/ && + git mv z/d x/ && + rmdir z && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '3a-check: Avoid implicit rename if involved as source on other side' ' + ( + cd 3a && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 3 out && + + git rev-parse >actual \ + HEAD:y/b HEAD:y/c HEAD:x/d && + git rev-parse >expect \ + O:z/b O:z/c O:z/d && + test_cmp expect actual + ) +' + +# Testcase 3b, Avoid implicit rename if involved as source on other side +# (Related to testcases 5c and 7c, also kind of 1e and 1f) +# Commit O: z/{b,c,d} +# Commit A: y/{b,c}, x/d +# Commit B: z/{b,c}, w/d +# Expected: y/{b,c}, CONFLICT:(z/d -> x/d vs. w/d) +# NOTE: We're particularly checking that since z/d is already involved as +# a source in a file rename on the same side of history, that we don't +# get it involved in directory rename detection. If it were, we might +# end up with CONFLICT:(z/d -> y/d vs. x/d vs. w/d), i.e. a +# rename/rename/rename(1to3) conflict, which is just weird. +test_expect_success '3b-setup: Avoid implicit rename if involved as source on current side' ' + test_create_repo 3b && + ( + cd 3b && + + mkdir z && + echo b >z/b && + echo c >z/c && + echo d >z/d && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + mkdir y && + mkdir x && + git mv z/b y/ && + git mv z/c y/ && + git mv z/d x/ && + rmdir z && + test_tick && + git commit -m "A" && + + git checkout B && + mkdir w && + git mv z/d w/ && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '3b-check: Avoid implicit rename if involved as source on current side' ' + ( + cd 3b && + + git checkout A^0 && + + test_must_fail git merge -s recursive B^0 >out && + test_i18ngrep CONFLICT.*rename/rename.*z/d.*x/d.*w/d out && + test_i18ngrep ! CONFLICT.*rename/rename.*y/d out && + + git ls-files -s >out && + test_line_count = 5 out && + git ls-files -u >out && + test_line_count = 3 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + :0:y/b :0:y/c :1:z/d :2:x/d :3:w/d && + git rev-parse >expect \ + O:z/b O:z/c O:z/d O:z/d O:z/d && + test_cmp expect actual && + + test_path_is_missing z/d && + git hash-object >actual \ + x/d w/d && + git rev-parse >expect \ + O:z/d O:z/d && + test_cmp expect actual + ) +' + +########################################################################### +# Rules suggested by section 3: +# +# Avoid directory-rename-detection for a path, if that path is the source +# of a rename on either side of a merge. +########################################################################### + + +########################################################################### +# SECTION 4: Partially renamed directory; still exists on both sides of merge +# +# What if we were to attempt to do directory rename detection when someone +# "mostly" moved a directory but still left some files around, or, +# equivalently, fully renamed a directory in one commmit and then recreated +# that directory in a later commit adding some new files and then tried to +# merge? +# +# It's hard to divine user intent in these cases, because you can make an +# argument that, depending on the intermediate history of the side being +# merged, that some users will want files in that directory to +# automatically be detected and renamed, while users with a different +# intermediate history wouldn't want that rename to happen. +# +# I think that it is best to simply not have directory rename detection +# apply to such cases. My reasoning for this is four-fold: (1) it's +# easiest for users in general to figure out what happened if we don't +# apply directory rename detection in any such case, (2) it's an easy rule +# to explain ["We don't do directory rename detection if the directory +# still exists on both sides of the merge"], (3) we can get some hairy +# edge/corner cases that would be really confusing and possibly not even +# representable in the index if we were to even try, and [related to 3] (4) +# attempting to resolve this issue of divining user intent by examining +# intermediate history goes against the spirit of three-way merges and is a +# path towards crazy corner cases that are far more complex than what we're +# already dealing with. +# +# Note that the wording of the rule ("We don't do directory rename +# detection if the directory still exists on both sides of the merge.") +# also excludes "renaming" of a directory into a subdirectory of itself +# (e.g. /some/dir/* -> /some/dir/subdir/*). It may be possible to carve +# out an exception for "renaming"-beneath-itself cases without opening +# weird edge/corner cases for other partial directory renames, but for now +# we are keeping the rule simple. +# +# This section contains a test for a partially-renamed-directory case. +########################################################################### + +# Testcase 4a, Directory split, with original directory still present +# (Related to testcase 1f) +# Commit O: z/{b,c,d,e} +# Commit A: y/{b,c,d}, z/e +# Commit B: z/{b,c,d,e,f} +# Expected: y/{b,c,d}, z/{e,f} +# NOTE: Even though most files from z moved to y, we don't want f to follow. + +test_expect_success '4a-setup: Directory split, with original directory still present' ' + test_create_repo 4a && + ( + cd 4a && + + mkdir z && + echo b >z/b && + echo c >z/c && + echo d >z/d && + echo e >z/e && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + mkdir y && + git mv z/b y/ && + git mv z/c y/ && + git mv z/d y/ && + test_tick && + git commit -m "A" && + + git checkout B && + echo f >z/f && + git add z/f && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '4a-check: Directory split, with original directory still present' ' + ( + cd 4a && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 5 out && + git ls-files -u >out && + test_line_count = 0 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + HEAD:y/b HEAD:y/c HEAD:y/d HEAD:z/e HEAD:z/f && + git rev-parse >expect \ + O:z/b O:z/c O:z/d O:z/e B:z/f && + test_cmp expect actual + ) +' + +########################################################################### +# Rules suggested by section 4: +# +# Directory-rename-detection should be turned off for any directories (as +# a source for renames) that exist on both sides of the merge. (The "as +# a source for renames" clarification is due to cases like 1c where +# the target directory exists on both sides and we do want the rename +# detection.) But, sadly, see testcase 8b. +########################################################################### + + +########################################################################### +# SECTION 5: Files/directories in the way of subset of to-be-renamed paths +# +# Implicitly renaming files due to a detected directory rename could run +# into problems if there are files or directories in the way of the paths +# we want to rename. Explore such cases in this section. +########################################################################### + +# Testcase 5a, Merge directories, other side adds files to original and target +# Commit O: z/{b,c}, y/d +# Commit A: z/{b,c,e_1,f}, y/{d,e_2} +# Commit B: y/{b,c,d} +# Expected: z/e_1, y/{b,c,d,e_2,f} + CONFLICT warning +# NOTE: While directory rename detection is active here causing z/f to +# become y/f, we did not apply this for z/e_1 because that would +# give us an add/add conflict for y/e_1 vs y/e_2. This problem with +# this add/add, is that both versions of y/e are from the same side +# of history, giving us no way to represent this conflict in the +# index. + +test_expect_success '5a-setup: Merge directories, other side adds files to original and target' ' + test_create_repo 5a && + ( + cd 5a && + + mkdir z && + echo b >z/b && + echo c >z/c && + mkdir y && + echo d >y/d && + git add z y && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + echo e1 >z/e && + echo f >z/f && + echo e2 >y/e && + git add z/e z/f y/e && + test_tick && + git commit -m "A" && + + git checkout B && + git mv z/b y/ && + git mv z/c y/ && + rmdir z && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '5a-check: Merge directories, other side adds files to original and target' ' + ( + cd 5a && + + git checkout A^0 && + + test_must_fail git merge -s recursive B^0 >out && + test_i18ngrep "CONFLICT.*implicit dir rename" out && + + git ls-files -s >out && + test_line_count = 6 out && + git ls-files -u >out && + test_line_count = 0 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + :0:y/b :0:y/c :0:y/d :0:y/e :0:z/e :0:y/f && + git rev-parse >expect \ + O:z/b O:z/c O:y/d A:y/e A:z/e A:z/f && + test_cmp expect actual + ) +' + +# Testcase 5b, Rename/delete in order to get add/add/add conflict +# (Related to testcase 8d; these may appear slightly inconsistent to users; +# Also related to testcases 7d and 7e) +# Commit O: z/{b,c,d_1} +# Commit A: y/{b,c,d_2} +# Commit B: z/{b,c,d_1,e}, y/d_3 +# Expected: y/{b,c,e}, CONFLICT(add/add: y/d_2 vs. y/d_3) +# NOTE: If z/d_1 in commit B were to be involved in dir rename detection, as +# we normaly would since z/ is being renamed to y/, then this would be +# a rename/delete (z/d_1 -> y/d_1 vs. deleted) AND an add/add/add +# conflict of y/d_1 vs. y/d_2 vs. y/d_3. Add/add/add is not +# representable in the index, so the existence of y/d_3 needs to +# cause us to bail on directory rename detection for that path, falling +# back to git behavior without the directory rename detection. + +test_expect_success '5b-setup: Rename/delete in order to get add/add/add conflict' ' + test_create_repo 5b && + ( + cd 5b && + + mkdir z && + echo b >z/b && + echo c >z/c && + echo d1 >z/d && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git rm z/d && + git mv z y && + echo d2 >y/d && + git add y/d && + test_tick && + git commit -m "A" && + + git checkout B && + mkdir y && + echo d3 >y/d && + echo e >z/e && + git add y/d z/e && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '5b-check: Rename/delete in order to get add/add/add conflict' ' + ( + cd 5b && + + git checkout A^0 && + + test_must_fail git merge -s recursive B^0 >out && + test_i18ngrep "CONFLICT (add/add).* y/d" out && + + git ls-files -s >out && + test_line_count = 5 out && + git ls-files -u >out && + test_line_count = 2 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + :0:y/b :0:y/c :0:y/e :2:y/d :3:y/d && + git rev-parse >expect \ + O:z/b O:z/c B:z/e A:y/d B:y/d && + test_cmp expect actual && + + test_must_fail git rev-parse :1:y/d && + test_path_is_file y/d + ) +' + +# Testcase 5c, Transitive rename would cause rename/rename/rename/add/add/add +# (Directory rename detection would result in transitive rename vs. +# rename/rename(1to2) and turn it into a rename/rename(1to3). Further, +# rename paths conflict with separate adds on the other side) +# (Related to testcases 3b and 7c) +# Commit O: z/{b,c}, x/d_1 +# Commit A: y/{b,c,d_2}, w/d_1 +# Commit B: z/{b,c,d_1,e}, w/d_3, y/d_4 +# Expected: A mess, but only a rename/rename(1to2)/add/add mess. Use the +# presence of y/d_4 in B to avoid doing transitive rename of +# x/d_1 -> z/d_1 -> y/d_1, so that the only paths we have at +# y/d are y/d_2 and y/d_4. We still do the move from z/e to y/e, +# though, because it doesn't have anything in the way. + +test_expect_success '5c-setup: Transitive rename would cause rename/rename/rename/add/add/add' ' + test_create_repo 5c && + ( + cd 5c && + + mkdir z && + echo b >z/b && + echo c >z/c && + mkdir x && + echo d1 >x/d && + git add z x && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z y && + echo d2 >y/d && + git add y/d && + git mv x w && + test_tick && + git commit -m "A" && + + git checkout B && + git mv x/d z/ && + mkdir w && + mkdir y && + echo d3 >w/d && + echo d4 >y/d && + echo e >z/e && + git add w/ y/ z/e && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '5c-check: Transitive rename would cause rename/rename/rename/add/add/add' ' + ( + cd 5c && + + git checkout A^0 && + + test_must_fail git merge -s recursive B^0 >out && + test_i18ngrep "CONFLICT (rename/rename).*x/d.*w/d.*z/d" out && + test_i18ngrep "CONFLICT (add/add).* y/d" out && + + git ls-files -s >out && + test_line_count = 9 out && + git ls-files -u >out && + test_line_count = 6 out && + git ls-files -o >out && + test_line_count = 3 out && + + git rev-parse >actual \ + :0:y/b :0:y/c :0:y/e && + git rev-parse >expect \ + O:z/b O:z/c B:z/e && + test_cmp expect actual && + + test_must_fail git rev-parse :1:y/d && + git rev-parse >actual \ + :2:w/d :3:w/d :1:x/d :2:y/d :3:y/d :3:z/d && + git rev-parse >expect \ + O:x/d B:w/d O:x/d A:y/d B:y/d O:x/d && + test_cmp expect actual && + + git hash-object >actual \ + w/d~HEAD w/d~B^0 z/d && + git rev-parse >expect \ + O:x/d B:w/d O:x/d && + test_cmp expect actual && + test_path_is_missing x/d && + test_path_is_file y/d && + grep -q "<<<<" y/d # conflict markers should be present + ) +' + +# Testcase 5d, Directory/file/file conflict due to directory rename +# Commit O: z/{b,c} +# Commit A: y/{b,c,d_1} +# Commit B: z/{b,c,d_2,f}, y/d/e +# Expected: y/{b,c,d/e,f}, z/d_2, CONFLICT(file/directory), y/d_1~HEAD +# Note: The fact that y/d/ exists in B makes us bail on directory rename +# detection for z/d_2, but that doesn't prevent us from applying the +# directory rename detection for z/f -> y/f. + +test_expect_success '5d-setup: Directory/file/file conflict due to directory rename' ' + test_create_repo 5d && + ( + cd 5d && + + mkdir z && + echo b >z/b && + echo c >z/c && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z y && + echo d1 >y/d && + git add y/d && + test_tick && + git commit -m "A" && + + git checkout B && + mkdir -p y/d && + echo e >y/d/e && + echo d2 >z/d && + echo f >z/f && + git add y/d/e z/d z/f && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '5d-check: Directory/file/file conflict due to directory rename' ' + ( + cd 5d && + + git checkout A^0 && + + test_must_fail git merge -s recursive B^0 >out && + test_i18ngrep "CONFLICT (file/directory).*y/d" out && + + git ls-files -s >out && + test_line_count = 6 out && + git ls-files -u >out && + test_line_count = 1 out && + git ls-files -o >out && + test_line_count = 2 out && + + git rev-parse >actual \ + :0:y/b :0:y/c :0:z/d :0:y/f :2:y/d :0:y/d/e && + git rev-parse >expect \ + O:z/b O:z/c B:z/d B:z/f A:y/d B:y/d/e && + test_cmp expect actual && + + git hash-object y/d~HEAD >actual && + git rev-parse A:y/d >expect && + test_cmp expect actual + ) +' + +########################################################################### +# Rules suggested by section 5: +# +# If a subset of to-be-renamed files have a file or directory in the way, +# "turn off" the directory rename for those specific sub-paths, falling +# back to old handling. But, sadly, see testcases 8a and 8b. +########################################################################### + + +########################################################################### +# SECTION 6: Same side of the merge was the one that did the rename +# +# It may sound obvious that you only want to apply implicit directory +# renames to directories if the _other_ side of history did the renaming. +# If you did make an implementation that didn't explicitly enforce this +# rule, the majority of cases that would fall under this section would +# also be solved by following the rules from the above sections. But +# there are still a few that stick out, so this section covers them just +# to make sure we also get them right. +########################################################################### + +# Testcase 6a, Tricky rename/delete +# Commit O: z/{b,c,d} +# Commit A: z/b +# Commit B: y/{b,c}, z/d +# Expected: y/b, CONFLICT(rename/delete, z/c -> y/c vs. NULL) +# Note: We're just checking here that the rename of z/b and z/c to put +# them under y/ doesn't accidentally catch z/d and make it look like +# it is also involved in a rename/delete conflict. + +test_expect_success '6a-setup: Tricky rename/delete' ' + test_create_repo 6a && + ( + cd 6a && + + mkdir z && + echo b >z/b && + echo c >z/c && + echo d >z/d && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git rm z/c && + git rm z/d && + test_tick && + git commit -m "A" && + + git checkout B && + mkdir y && + git mv z/b y/ && + git mv z/c y/ && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '6a-check: Tricky rename/delete' ' + ( + cd 6a && + + git checkout A^0 && + + test_must_fail git merge -s recursive B^0 >out && + test_i18ngrep "CONFLICT (rename/delete).*z/c.*y/c" out && + + git ls-files -s >out && + test_line_count = 2 out && + git ls-files -u >out && + test_line_count = 1 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + :0:y/b :3:y/c && + git rev-parse >expect \ + O:z/b O:z/c && + test_cmp expect actual + ) +' + +# Testcase 6b, Same rename done on both sides +# (Related to testcases 6c and 8e) +# Commit O: z/{b,c} +# Commit A: y/{b,c} +# Commit B: y/{b,c}, z/d +# Expected: y/{b,c}, z/d +# Note: If we did directory rename detection here, we'd move z/d into y/, +# but B did that rename and still decided to put the file into z/, +# so we probably shouldn't apply directory rename detection for it. + +test_expect_success '6b-setup: Same rename done on both sides' ' + test_create_repo 6b && + ( + cd 6b && + + mkdir z && + echo b >z/b && + echo c >z/c && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z y && + test_tick && + git commit -m "A" && + + git checkout B && + git mv z y && + mkdir z && + echo d >z/d && + git add z/d && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '6b-check: Same rename done on both sides' ' + ( + cd 6b && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 3 out && + git ls-files -u >out && + test_line_count = 0 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + HEAD:y/b HEAD:y/c HEAD:z/d && + git rev-parse >expect \ + O:z/b O:z/c B:z/d && + test_cmp expect actual + ) +' + +# Testcase 6c, Rename only done on same side +# (Related to testcases 6b and 8e) +# Commit O: z/{b,c} +# Commit A: z/{b,c} (no change) +# Commit B: y/{b,c}, z/d +# Expected: y/{b,c}, z/d +# NOTE: Seems obvious, but just checking that the implementation doesn't +# "accidentally detect a rename" and give us y/{b,c,d}. + +test_expect_success '6c-setup: Rename only done on same side' ' + test_create_repo 6c && + ( + cd 6c && + + mkdir z && + echo b >z/b && + echo c >z/c && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + test_tick && + git commit --allow-empty -m "A" && + + git checkout B && + git mv z y && + mkdir z && + echo d >z/d && + git add z/d && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '6c-check: Rename only done on same side' ' + ( + cd 6c && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 3 out && + git ls-files -u >out && + test_line_count = 0 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + HEAD:y/b HEAD:y/c HEAD:z/d && + git rev-parse >expect \ + O:z/b O:z/c B:z/d && + test_cmp expect actual + ) +' + +# Testcase 6d, We don't always want transitive renaming +# (Related to testcase 1c) +# Commit O: z/{b,c}, x/d +# Commit A: z/{b,c}, x/d (no change) +# Commit B: y/{b,c}, z/d +# Expected: y/{b,c}, z/d +# NOTE: Again, this seems obvious but just checking that the implementation +# doesn't "accidentally detect a rename" and give us y/{b,c,d}. + +test_expect_success '6d-setup: We do not always want transitive renaming' ' + test_create_repo 6d && + ( + cd 6d && + + mkdir z && + echo b >z/b && + echo c >z/c && + mkdir x && + echo d >x/d && + git add z x && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + test_tick && + git commit --allow-empty -m "A" && + + git checkout B && + git mv z y && + git mv x z && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '6d-check: We do not always want transitive renaming' ' + ( + cd 6d && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 3 out && + git ls-files -u >out && + test_line_count = 0 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + HEAD:y/b HEAD:y/c HEAD:z/d && + git rev-parse >expect \ + O:z/b O:z/c O:x/d && + test_cmp expect actual + ) +' + +# Testcase 6e, Add/add from one-side +# Commit O: z/{b,c} +# Commit A: z/{b,c} (no change) +# Commit B: y/{b,c,d_1}, z/d_2 +# Expected: y/{b,c,d_1}, z/d_2 +# NOTE: Again, this seems obvious but just checking that the implementation +# doesn't "accidentally detect a rename" and give us y/{b,c} + +# add/add conflict on y/d_1 vs y/d_2. + +test_expect_success '6e-setup: Add/add from one side' ' + test_create_repo 6e && + ( + cd 6e && + + mkdir z && + echo b >z/b && + echo c >z/c && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + test_tick && + git commit --allow-empty -m "A" && + + git checkout B && + git mv z y && + echo d1 > y/d && + mkdir z && + echo d2 > z/d && + git add y/d z/d && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '6e-check: Add/add from one side' ' + ( + cd 6e && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 4 out && + git ls-files -u >out && + test_line_count = 0 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + HEAD:y/b HEAD:y/c HEAD:y/d HEAD:z/d && + git rev-parse >expect \ + O:z/b O:z/c B:y/d B:z/d && + test_cmp expect actual + ) +' + +########################################################################### +# Rules suggested by section 6: +# +# Only apply implicit directory renames to directories if the other +# side of history is the one doing the renaming. +########################################################################### + + +########################################################################### +# SECTION 7: More involved Edge/Corner cases +# +# The ruleset we have generated in the above sections seems to provide +# well-defined merges. But can we find edge/corner cases that either (a) +# are harder for users to understand, or (b) have a resolution that is +# non-intuitive or suboptimal? +# +# The testcases in this section dive into cases that I've tried to craft in +# a way to find some that might be surprising to users or difficult for +# them to understand (the next section will look at non-intuitive or +# suboptimal merge results). Some of the testcases are similar to ones +# from past sections, but have been simplified to try to highlight error +# messages using a "modified" path (due to the directory rename). Are +# users okay with these? +# +# In my opinion, testcases that are difficult to understand from this +# section is due to difficulty in the testcase rather than the directory +# renaming (similar to how t6042 and t6036 have difficult resolutions due +# to the problem setup itself being complex). And I don't think the +# error messages are a problem. +# +# On the other hand, the testcases in section 8 worry me slightly more... +########################################################################### + +# Testcase 7a, rename-dir vs. rename-dir (NOT split evenly) PLUS add-other-file +# Commit O: z/{b,c} +# Commit A: y/{b,c} +# Commit B: w/b, x/c, z/d +# Expected: y/d, CONFLICT(rename/rename for both z/b and z/c) +# NOTE: There's a rename of z/ here, y/ has more renames, so z/d -> y/d. + +test_expect_success '7a-setup: rename-dir vs. rename-dir (NOT split evenly) PLUS add-other-file' ' + test_create_repo 7a && + ( + cd 7a && + + mkdir z && + echo b >z/b && + echo c >z/c && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z y && + test_tick && + git commit -m "A" && + + git checkout B && + mkdir w && + mkdir x && + git mv z/b w/ && + git mv z/c x/ && + echo d > z/d && + git add z/d && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '7a-check: rename-dir vs. rename-dir (NOT split evenly) PLUS add-other-file' ' + ( + cd 7a && + + git checkout A^0 && + + test_must_fail git merge -s recursive B^0 >out && + test_i18ngrep "CONFLICT (rename/rename).*z/b.*y/b.*w/b" out && + test_i18ngrep "CONFLICT (rename/rename).*z/c.*y/c.*x/c" out && + + git ls-files -s >out && + test_line_count = 7 out && + git ls-files -u >out && + test_line_count = 6 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + :1:z/b :2:y/b :3:w/b :1:z/c :2:y/c :3:x/c :0:y/d && + git rev-parse >expect \ + O:z/b O:z/b O:z/b O:z/c O:z/c O:z/c B:z/d && + test_cmp expect actual && + + git hash-object >actual \ + y/b w/b y/c x/c && + git rev-parse >expect \ + O:z/b O:z/b O:z/c O:z/c && + test_cmp expect actual + ) +' + +# Testcase 7b, rename/rename(2to1), but only due to transitive rename +# (Related to testcase 1d) +# Commit O: z/{b,c}, x/d_1, w/d_2 +# Commit A: y/{b,c,d_2}, x/d_1 +# Commit B: z/{b,c,d_1}, w/d_2 +# Expected: y/{b,c}, CONFLICT(rename/rename(2to1): x/d_1, w/d_2 -> y_d) + +test_expect_success '7b-setup: rename/rename(2to1), but only due to transitive rename' ' + test_create_repo 7b && + ( + cd 7b && + + mkdir z && + mkdir x && + mkdir w && + echo b >z/b && + echo c >z/c && + echo d1 > x/d && + echo d2 > w/d && + git add z x w && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z y && + git mv w/d y/ && + test_tick && + git commit -m "A" && + + git checkout B && + git mv x/d z/ && + rmdir x && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '7b-check: rename/rename(2to1), but only due to transitive rename' ' + ( + cd 7b && + + git checkout A^0 && + + test_must_fail git merge -s recursive B^0 >out && + test_i18ngrep "CONFLICT (rename/rename)" out && + + git ls-files -s >out && + test_line_count = 4 out && + git ls-files -u >out && + test_line_count = 2 out && + git ls-files -o >out && + test_line_count = 3 out && + + git rev-parse >actual \ + :0:y/b :0:y/c :2:y/d :3:y/d && + git rev-parse >expect \ + O:z/b O:z/c O:w/d O:x/d && + test_cmp expect actual && + + test_path_is_missing y/d && + test_path_is_file y/d~HEAD && + test_path_is_file y/d~B^0 && + + git hash-object >actual \ + y/d~HEAD y/d~B^0 && + git rev-parse >expect \ + O:w/d O:x/d && + test_cmp expect actual + ) +' + +# Testcase 7c, rename/rename(1to...2or3); transitive rename may add complexity +# (Related to testcases 3b and 5c) +# Commit O: z/{b,c}, x/d +# Commit A: y/{b,c}, w/d +# Commit B: z/{b,c,d} +# Expected: y/{b,c}, CONFLICT(x/d -> w/d vs. y/d) +# NOTE: z/ was renamed to y/ so we do want to report +# neither CONFLICT(x/d -> w/d vs. z/d) +# nor CONFLiCT x/d -> w/d vs. y/d vs. z/d) + +test_expect_success '7c-setup: rename/rename(1to...2or3); transitive rename may add complexity' ' + test_create_repo 7c && + ( + cd 7c && + + mkdir z && + echo b >z/b && + echo c >z/c && + mkdir x && + echo d >x/d && + git add z x && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z y && + git mv x w && + test_tick && + git commit -m "A" && + + git checkout B && + git mv x/d z/ && + rmdir x && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '7c-check: rename/rename(1to...2or3); transitive rename may add complexity' ' + ( + cd 7c && + + git checkout A^0 && + + test_must_fail git merge -s recursive B^0 >out && + test_i18ngrep "CONFLICT (rename/rename).*x/d.*w/d.*y/d" out && + + git ls-files -s >out && + test_line_count = 5 out && + git ls-files -u >out && + test_line_count = 3 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + :0:y/b :0:y/c :1:x/d :2:w/d :3:y/d && + git rev-parse >expect \ + O:z/b O:z/c O:x/d O:x/d O:x/d && + test_cmp expect actual + ) +' + +# Testcase 7d, transitive rename involved in rename/delete; how is it reported? +# (Related somewhat to testcases 5b and 8d) +# Commit O: z/{b,c}, x/d +# Commit A: y/{b,c} +# Commit B: z/{b,c,d} +# Expected: y/{b,c}, CONFLICT(delete x/d vs rename to y/d) +# NOTE: z->y so NOT CONFLICT(delete x/d vs rename to z/d) + +test_expect_success '7d-setup: transitive rename involved in rename/delete; how is it reported?' ' + test_create_repo 7d && + ( + cd 7d && + + mkdir z && + echo b >z/b && + echo c >z/c && + mkdir x && + echo d >x/d && + git add z x && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z y && + git rm -rf x && + test_tick && + git commit -m "A" && + + git checkout B && + git mv x/d z/ && + rmdir x && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '7d-check: transitive rename involved in rename/delete; how is it reported?' ' + ( + cd 7d && + + git checkout A^0 && + + test_must_fail git merge -s recursive B^0 >out && + test_i18ngrep "CONFLICT (rename/delete).*x/d.*y/d" out && + + git ls-files -s >out && + test_line_count = 3 out && + git ls-files -u >out && + test_line_count = 1 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + :0:y/b :0:y/c :3:y/d && + git rev-parse >expect \ + O:z/b O:z/c O:x/d && + test_cmp expect actual + ) +' + +# Testcase 7e, transitive rename in rename/delete AND dirs in the way +# (Very similar to 'both rename source and destination involved in D/F conflict' from t6022-merge-rename.sh) +# (Also related to testcases 9c and 9d) +# Commit O: z/{b,c}, x/d_1 +# Commit A: y/{b,c,d/g}, x/d/f +# Commit B: z/{b,c,d_1} +# Expected: rename/delete(x/d_1->y/d_1 vs. None) + D/F conflict on y/d +# y/{b,c,d/g}, y/d_1~B^0, x/d/f + +# NOTE: The main path of interest here is d_1 and where it ends up, but +# this is actually a case that has two potential directory renames +# involved and D/F conflict(s), so it makes sense to walk through +# each step. +# +# Commit A renames z/ -> y/. Thus everything that B adds to z/ +# should be instead moved to y/. This gives us the D/F conflict on +# y/d because x/d_1 -> z/d_1 -> y/d_1 conflicts with y/d/g. +# +# Further, commit B renames x/ -> z/, thus everything A adds to x/ +# should instead be moved to z/...BUT we removed z/ and renamed it +# to y/, so maybe everything should move not from x/ to z/, but +# from x/ to z/ to y/. Doing so might make sense from the logic so +# far, but note that commit A had both an x/ and a y/; it did the +# renaming of z/ to y/ and created x/d/f and it clearly made these +# things separate, so it doesn't make much sense to push these +# together. Doing so is what I'd call a doubly transitive rename; +# see testcases 9c and 9d for further discussion of this issue and +# how it's resolved. + +test_expect_success '7e-setup: transitive rename in rename/delete AND dirs in the way' ' + test_create_repo 7e && + ( + cd 7e && + + mkdir z && + echo b >z/b && + echo c >z/c && + mkdir x && + echo d1 >x/d && + git add z x && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z y && + git rm x/d && + mkdir -p x/d && + mkdir -p y/d && + echo f >x/d/f && + echo g >y/d/g && + git add x/d/f y/d/g && + test_tick && + git commit -m "A" && + + git checkout B && + git mv x/d z/ && + rmdir x && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '7e-check: transitive rename in rename/delete AND dirs in the way' ' + ( + cd 7e && + + git checkout A^0 && + + test_must_fail git merge -s recursive B^0 >out && + test_i18ngrep "CONFLICT (rename/delete).*x/d.*y/d" out && + + git ls-files -s >out && + test_line_count = 5 out && + git ls-files -u >out && + test_line_count = 1 out && + git ls-files -o >out && + test_line_count = 2 out && + + git rev-parse >actual \ + :0:x/d/f :0:y/d/g :0:y/b :0:y/c :3:y/d && + git rev-parse >expect \ + A:x/d/f A:y/d/g O:z/b O:z/c O:x/d && + test_cmp expect actual && + + git hash-object y/d~B^0 >actual && + git rev-parse O:x/d >expect && + test_cmp expect actual + ) +' + +########################################################################### +# SECTION 8: Suboptimal merges +# +# As alluded to in the last section, the ruleset we have built up for +# detecting directory renames unfortunately has some special cases where it +# results in slightly suboptimal or non-intuitive behavior. This section +# explores these cases. +# +# To be fair, we already had non-intuitive or suboptimal behavior for most +# of these cases in git before introducing implicit directory rename +# detection, but it'd be nice if there was a modified ruleset out there +# that handled these cases a bit better. +########################################################################### + +# Testcase 8a, Dual-directory rename, one into the others' way +# Commit O. x/{a,b}, y/{c,d} +# Commit A. x/{a,b,e}, y/{c,d,f} +# Commit B. y/{a,b}, z/{c,d} +# +# Possible Resolutions: +# w/o dir-rename detection: y/{a,b,f}, z/{c,d}, x/e +# Currently expected: y/{a,b,e,f}, z/{c,d} +# Optimal: y/{a,b,e}, z/{c,d,f} +# +# Note: Both x and y got renamed and it'd be nice to detect both, and we do +# better with directory rename detection than git did without, but the +# simple rule from section 5 prevents me from handling this as optimally as +# we potentially could. + +test_expect_success '8a-setup: Dual-directory rename, one into the others way' ' + test_create_repo 8a && + ( + cd 8a && + + mkdir x && + mkdir y && + echo a >x/a && + echo b >x/b && + echo c >y/c && + echo d >y/d && + git add x y && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + echo e >x/e && + echo f >y/f && + git add x/e y/f && + test_tick && + git commit -m "A" && + + git checkout B && + git mv y z && + git mv x y && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '8a-check: Dual-directory rename, one into the others way' ' + ( + cd 8a && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 6 out && + git ls-files -u >out && + test_line_count = 0 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + HEAD:y/a HEAD:y/b HEAD:y/e HEAD:y/f HEAD:z/c HEAD:z/d && + git rev-parse >expect \ + O:x/a O:x/b A:x/e A:y/f O:y/c O:y/d && + test_cmp expect actual + ) +' + +# Testcase 8b, Dual-directory rename, one into the others' way, with conflicting filenames +# Commit O. x/{a_1,b_1}, y/{a_2,b_2} +# Commit A. x/{a_1,b_1,e_1}, y/{a_2,b_2,e_2} +# Commit B. y/{a_1,b_1}, z/{a_2,b_2} +# +# w/o dir-rename detection: y/{a_1,b_1,e_2}, z/{a_2,b_2}, x/e_1 +# Currently expected: <same> +# Scary: y/{a_1,b_1}, z/{a_2,b_2}, CONFLICT(add/add, e_1 vs. e_2) +# Optimal: y/{a_1,b_1,e_1}, z/{a_2,b_2,e_2} +# +# Note: Very similar to 8a, except instead of 'e' and 'f' in directories x and +# y, both are named 'e'. Without directory rename detection, neither file +# moves directories. Implement directory rename detection suboptimally, and +# you get an add/add conflict, but both files were added in commit A, so this +# is an add/add conflict where one side of history added both files -- +# something we can't represent in the index. Obviously, we'd prefer the last +# resolution, but our previous rules are too coarse to allow it. Using both +# the rules from section 4 and section 5 save us from the Scary resolution, +# making us fall back to pre-directory-rename-detection behavior for both +# e_1 and e_2. + +test_expect_success '8b-setup: Dual-directory rename, one into the others way, with conflicting filenames' ' + test_create_repo 8b && + ( + cd 8b && + + mkdir x && + mkdir y && + echo a1 >x/a && + echo b1 >x/b && + echo a2 >y/a && + echo b2 >y/b && + git add x y && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + echo e1 >x/e && + echo e2 >y/e && + git add x/e y/e && + test_tick && + git commit -m "A" && + + git checkout B && + git mv y z && + git mv x y && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '8b-check: Dual-directory rename, one into the others way, with conflicting filenames' ' + ( + cd 8b && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 6 out && + git ls-files -u >out && + test_line_count = 0 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + HEAD:y/a HEAD:y/b HEAD:z/a HEAD:z/b HEAD:x/e HEAD:y/e && + git rev-parse >expect \ + O:x/a O:x/b O:y/a O:y/b A:x/e A:y/e && + test_cmp expect actual + ) +' + +# Testcase 8c, modify/delete or rename+modify/delete? +# (Related to testcases 5b, 8d, and 9h) +# Commit O: z/{b,c,d} +# Commit A: y/{b,c} +# Commit B: z/{b,c,d_modified,e} +# Expected: y/{b,c,e}, CONFLICT(modify/delete: on z/d) +# +# Note: It could easily be argued that the correct resolution here is +# y/{b,c,e}, CONFLICT(rename/delete: z/d -> y/d vs deleted) +# and that the modifed version of d should be present in y/ after +# the merge, just marked as conflicted. Indeed, I previously did +# argue that. But applying directory renames to the side of +# history where a file is merely modified results in spurious +# rename/rename(1to2) conflicts -- see testcase 9h. See also +# notes in 8d. + +test_expect_success '8c-setup: modify/delete or rename+modify/delete?' ' + test_create_repo 8c && + ( + cd 8c && + + mkdir z && + echo b >z/b && + echo c >z/c && + test_seq 1 10 >z/d && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git rm z/d && + git mv z y && + test_tick && + git commit -m "A" && + + git checkout B && + echo 11 >z/d && + test_chmod +x z/d && + echo e >z/e && + git add z/d z/e && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '8c-check: modify/delete or rename+modify/delete' ' + ( + cd 8c && + + git checkout A^0 && + + test_must_fail git merge -s recursive B^0 >out && + test_i18ngrep "CONFLICT (modify/delete).* z/d" out && + + git ls-files -s >out && + test_line_count = 5 out && + git ls-files -u >out && + test_line_count = 2 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + :0:y/b :0:y/c :0:y/e :1:z/d :3:z/d && + git rev-parse >expect \ + O:z/b O:z/c B:z/e O:z/d B:z/d && + test_cmp expect actual && + + test_must_fail git rev-parse :2:z/d && + git ls-files -s z/d | grep ^100755 && + test_path_is_file z/d && + test_path_is_missing y/d + ) +' + +# Testcase 8d, rename/delete...or not? +# (Related to testcase 5b; these may appear slightly inconsistent to users; +# Also related to testcases 7d and 7e) +# Commit O: z/{b,c,d} +# Commit A: y/{b,c} +# Commit B: z/{b,c,d,e} +# Expected: y/{b,c,e} +# +# Note: It would also be somewhat reasonable to resolve this as +# y/{b,c,e}, CONFLICT(rename/delete: x/d -> y/d or deleted) +# +# In this case, I'm leaning towards: commit A was the one that deleted z/d +# and it did the rename of z to y, so the two "conflicts" (rename vs. +# delete) are both coming from commit A, which is illogical. Conflicts +# during merging are supposed to be about opposite sides doing things +# differently. + +test_expect_success '8d-setup: rename/delete...or not?' ' + test_create_repo 8d && + ( + cd 8d && + + mkdir z && + echo b >z/b && + echo c >z/c && + test_seq 1 10 >z/d && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git rm z/d && + git mv z y && + test_tick && + git commit -m "A" && + + git checkout B && + echo e >z/e && + git add z/e && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '8d-check: rename/delete...or not?' ' + ( + cd 8d && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 3 out && + + git rev-parse >actual \ + HEAD:y/b HEAD:y/c HEAD:y/e && + git rev-parse >expect \ + O:z/b O:z/c B:z/e && + test_cmp expect actual + ) +' + +# Testcase 8e, Both sides rename, one side adds to original directory +# Commit O: z/{b,c} +# Commit A: y/{b,c} +# Commit B: w/{b,c}, z/d +# +# Possible Resolutions: +# w/o dir-rename detection: z/d, CONFLICT(z/b -> y/b vs. w/b), +# CONFLICT(z/c -> y/c vs. w/c) +# Currently expected: y/d, CONFLICT(z/b -> y/b vs. w/b), +# CONFLICT(z/c -> y/c vs. w/c) +# Optimal: ?? +# +# Notes: In commit A, directory z got renamed to y. In commit B, directory z +# did NOT get renamed; the directory is still present; instead it is +# considered to have just renamed a subset of paths in directory z +# elsewhere. Therefore, the directory rename done in commit A to z/ +# applies to z/d and maps it to y/d. +# +# It's possible that users would get confused about this, but what +# should we do instead? Silently leaving at z/d seems just as bad or +# maybe even worse. Perhaps we could print a big warning about z/d +# and how we're moving to y/d in this case, but when I started thinking +# about the ramifications of doing that, I didn't know how to rule out +# that opening other weird edge and corner cases so I just punted. + +test_expect_success '8e-setup: Both sides rename, one side adds to original directory' ' + test_create_repo 8e && + ( + cd 8e && + + mkdir z && + echo b >z/b && + echo c >z/c && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z y && + test_tick && + git commit -m "A" && + + git checkout B && + git mv z w && + mkdir z && + echo d >z/d && + git add z/d && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '8e-check: Both sides rename, one side adds to original directory' ' + ( + cd 8e && + + git checkout A^0 && + + test_must_fail git merge -s recursive B^0 >out 2>err && + test_i18ngrep CONFLICT.*rename/rename.*z/c.*y/c.*w/c out && + test_i18ngrep CONFLICT.*rename/rename.*z/b.*y/b.*w/b out && + + git ls-files -s >out && + test_line_count = 7 out && + git ls-files -u >out && + test_line_count = 6 out && + git ls-files -o >out && + test_line_count = 2 out && + + git rev-parse >actual \ + :1:z/b :2:y/b :3:w/b :1:z/c :2:y/c :3:w/c :0:y/d && + git rev-parse >expect \ + O:z/b O:z/b O:z/b O:z/c O:z/c O:z/c B:z/d && + test_cmp expect actual && + + git hash-object >actual \ + y/b w/b y/c w/c && + git rev-parse >expect \ + O:z/b O:z/b O:z/c O:z/c && + test_cmp expect actual && + + test_path_is_missing z/b && + test_path_is_missing z/c + ) +' + +########################################################################### +# SECTION 9: Other testcases +# +# This section consists of miscellaneous testcases I thought of during +# the implementation which round out the testing. +########################################################################### + +# Testcase 9a, Inner renamed directory within outer renamed directory +# (Related to testcase 1f) +# Commit O: z/{b,c,d/{e,f,g}} +# Commit A: y/{b,c}, x/w/{e,f,g} +# Commit B: z/{b,c,d/{e,f,g,h},i} +# Expected: y/{b,c,i}, x/w/{e,f,g,h} +# NOTE: The only reason this one is interesting is because when a directory +# is split into multiple other directories, we determine by the weight +# of which one had the most paths going to it. A naive implementation +# of that could take the new file in commit B at z/i to x/w/i or x/i. + +test_expect_success '9a-setup: Inner renamed directory within outer renamed directory' ' + test_create_repo 9a && + ( + cd 9a && + + mkdir -p z/d && + echo b >z/b && + echo c >z/c && + echo e >z/d/e && + echo f >z/d/f && + echo g >z/d/g && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + mkdir x && + git mv z/d x/w && + git mv z y && + test_tick && + git commit -m "A" && + + git checkout B && + echo h >z/d/h && + echo i >z/i && + git add z && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '9a-check: Inner renamed directory within outer renamed directory' ' + ( + cd 9a && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 7 out && + git ls-files -u >out && + test_line_count = 0 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + HEAD:y/b HEAD:y/c HEAD:y/i && + git rev-parse >expect \ + O:z/b O:z/c B:z/i && + test_cmp expect actual && + + git rev-parse >actual \ + HEAD:x/w/e HEAD:x/w/f HEAD:x/w/g HEAD:x/w/h && + git rev-parse >expect \ + O:z/d/e O:z/d/f O:z/d/g B:z/d/h && + test_cmp expect actual + ) +' + +# Testcase 9b, Transitive rename with content merge +# (Related to testcase 1c) +# Commit O: z/{b,c}, x/d_1 +# Commit A: y/{b,c}, x/d_2 +# Commit B: z/{b,c,d_3} +# Expected: y/{b,c,d_merged} + +test_expect_success '9b-setup: Transitive rename with content merge' ' + test_create_repo 9b && + ( + cd 9b && + + mkdir z && + echo b >z/b && + echo c >z/c && + mkdir x && + test_seq 1 10 >x/d && + git add z x && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z y && + test_seq 1 11 >x/d && + git add x/d && + test_tick && + git commit -m "A" && + + git checkout B && + test_seq 0 10 >x/d && + git mv x/d z/d && + git add z/d && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '9b-check: Transitive rename with content merge' ' + ( + cd 9b && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 3 out && + + test_seq 0 11 >expected && + test_cmp expected y/d && + git add expected && + git rev-parse >actual \ + HEAD:y/b HEAD:y/c HEAD:y/d && + git rev-parse >expect \ + O:z/b O:z/c :0:expected && + test_cmp expect actual && + test_must_fail git rev-parse HEAD:x/d && + test_must_fail git rev-parse HEAD:z/d && + test_path_is_missing z/d && + + test $(git rev-parse HEAD:y/d) != $(git rev-parse O:x/d) && + test $(git rev-parse HEAD:y/d) != $(git rev-parse A:x/d) && + test $(git rev-parse HEAD:y/d) != $(git rev-parse B:z/d) + ) +' + +# Testcase 9c, Doubly transitive rename? +# (Related to testcase 1c, 7e, and 9d) +# Commit O: z/{b,c}, x/{d,e}, w/f +# Commit A: y/{b,c}, x/{d,e,f,g} +# Commit B: z/{b,c,d,e}, w/f +# Expected: y/{b,c,d,e}, x/{f,g} +# +# NOTE: x/f and x/g may be slightly confusing here. The rename from w/f to +# x/f is clear. Let's look beyond that. Here's the logic: +# Commit B renamed x/ -> z/ +# Commit A renamed z/ -> y/ +# So, we could possibly further rename x/f to z/f to y/f, a doubly +# transient rename. However, where does it end? We can chain these +# indefinitely (see testcase 9d). What if there is a D/F conflict +# at z/f/ or y/f/? Or just another file conflict at one of those +# paths? In the case of an N-long chain of transient renamings, +# where do we "abort" the rename at? Can the user make sense of +# the resulting conflict and resolve it? +# +# To avoid this confusion I use the simple rule that if the other side +# of history did a directory rename to a path that your side renamed +# away, then ignore that particular rename from the other side of +# history for any implicit directory renames. + +test_expect_success '9c-setup: Doubly transitive rename?' ' + test_create_repo 9c && + ( + cd 9c && + + mkdir z && + echo b >z/b && + echo c >z/c && + mkdir x && + echo d >x/d && + echo e >x/e && + mkdir w && + echo f >w/f && + git add z x w && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z y && + git mv w/f x/ && + echo g >x/g && + git add x/g && + test_tick && + git commit -m "A" && + + git checkout B && + git mv x/d z/d && + git mv x/e z/e && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '9c-check: Doubly transitive rename?' ' + ( + cd 9c && + + git checkout A^0 && + + git merge -s recursive B^0 >out && + test_i18ngrep "WARNING: Avoiding applying x -> z rename to x/f" out && + + git ls-files -s >out && + test_line_count = 6 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + HEAD:y/b HEAD:y/c HEAD:y/d HEAD:y/e HEAD:x/f HEAD:x/g && + git rev-parse >expect \ + O:z/b O:z/c O:x/d O:x/e O:w/f A:x/g && + test_cmp expect actual + ) +' + +# Testcase 9d, N-fold transitive rename? +# (Related to testcase 9c...and 1c and 7e) +# Commit O: z/a, y/b, x/c, w/d, v/e, u/f +# Commit A: y/{a,b}, w/{c,d}, u/{e,f} +# Commit B: z/{a,t}, x/{b,c}, v/{d,e}, u/f +# Expected: <see NOTE first> +# +# NOTE: z/ -> y/ (in commit A) +# y/ -> x/ (in commit B) +# x/ -> w/ (in commit A) +# w/ -> v/ (in commit B) +# v/ -> u/ (in commit A) +# So, if we add a file to z, say z/t, where should it end up? In u? +# What if there's another file or directory named 't' in one of the +# intervening directories and/or in u itself? Also, shouldn't the +# same logic that places 't' in u/ also move ALL other files to u/? +# What if there are file or directory conflicts in any of them? If +# we attempted to do N-way (N-fold? N-ary? N-uple?) transitive renames +# like this, would the user have any hope of understanding any +# conflicts or how their working tree ended up? I think not, so I'm +# ruling out N-ary transitive renames for N>1. +# +# Therefore our expected result is: +# z/t, y/a, x/b, w/c, u/d, u/e, u/f +# The reason that v/d DOES get transitively renamed to u/d is that u/ isn't +# renamed somewhere. A slightly sub-optimal result, but it uses fairly +# simple rules that are consistent with what we need for all the other +# testcases and simplifies things for the user. + +test_expect_success '9d-setup: N-way transitive rename?' ' + test_create_repo 9d && + ( + cd 9d && + + mkdir z y x w v u && + echo a >z/a && + echo b >y/b && + echo c >x/c && + echo d >w/d && + echo e >v/e && + echo f >u/f && + git add z y x w v u && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z/a y/ && + git mv x/c w/ && + git mv v/e u/ && + test_tick && + git commit -m "A" && + + git checkout B && + echo t >z/t && + git mv y/b x/ && + git mv w/d v/ && + git add z/t && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '9d-check: N-way transitive rename?' ' + ( + cd 9d && + + git checkout A^0 && + + git merge -s recursive B^0 >out && + test_i18ngrep "WARNING: Avoiding applying z -> y rename to z/t" out && + test_i18ngrep "WARNING: Avoiding applying y -> x rename to y/a" out && + test_i18ngrep "WARNING: Avoiding applying x -> w rename to x/b" out && + test_i18ngrep "WARNING: Avoiding applying w -> v rename to w/c" out && + + git ls-files -s >out && + test_line_count = 7 out && + git ls-files -o >out && + test_line_count = 1 out && + + git rev-parse >actual \ + HEAD:z/t \ + HEAD:y/a HEAD:x/b HEAD:w/c \ + HEAD:u/d HEAD:u/e HEAD:u/f && + git rev-parse >expect \ + B:z/t \ + O:z/a O:y/b O:x/c \ + O:w/d O:v/e A:u/f && + test_cmp expect actual + ) +' + +# Testcase 9e, N-to-1 whammo +# (Related to testcase 9c...and 1c and 7e) +# Commit O: dir1/{a,b}, dir2/{d,e}, dir3/{g,h}, dirN/{j,k} +# Commit A: dir1/{a,b,c,yo}, dir2/{d,e,f,yo}, dir3/{g,h,i,yo}, dirN/{j,k,l,yo} +# Commit B: combined/{a,b,d,e,g,h,j,k} +# Expected: combined/{a,b,c,d,e,f,g,h,i,j,k,l}, CONFLICT(Nto1) warnings, +# dir1/yo, dir2/yo, dir3/yo, dirN/yo + +test_expect_success '9e-setup: N-to-1 whammo' ' + test_create_repo 9e && + ( + cd 9e && + + mkdir dir1 dir2 dir3 dirN && + echo a >dir1/a && + echo b >dir1/b && + echo d >dir2/d && + echo e >dir2/e && + echo g >dir3/g && + echo h >dir3/h && + echo j >dirN/j && + echo k >dirN/k && + git add dir* && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + echo c >dir1/c && + echo yo >dir1/yo && + echo f >dir2/f && + echo yo >dir2/yo && + echo i >dir3/i && + echo yo >dir3/yo && + echo l >dirN/l && + echo yo >dirN/yo && + git add dir* && + test_tick && + git commit -m "A" && + + git checkout B && + git mv dir1 combined && + git mv dir2/* combined/ && + git mv dir3/* combined/ && + git mv dirN/* combined/ && + test_tick && + git commit -m "B" + ) +' + +test_expect_success C_LOCALE_OUTPUT '9e-check: N-to-1 whammo' ' + ( + cd 9e && + + git checkout A^0 && + + test_must_fail git merge -s recursive B^0 >out && + grep "CONFLICT (implicit dir rename): Cannot map more than one path to combined/yo" out >error_line && + grep -q dir1/yo error_line && + grep -q dir2/yo error_line && + grep -q dir3/yo error_line && + grep -q dirN/yo error_line && + + git ls-files -s >out && + test_line_count = 16 out && + git ls-files -u >out && + test_line_count = 0 out && + git ls-files -o >out && + test_line_count = 2 out && + + git rev-parse >actual \ + :0:combined/a :0:combined/b :0:combined/c \ + :0:combined/d :0:combined/e :0:combined/f \ + :0:combined/g :0:combined/h :0:combined/i \ + :0:combined/j :0:combined/k :0:combined/l && + git rev-parse >expect \ + O:dir1/a O:dir1/b A:dir1/c \ + O:dir2/d O:dir2/e A:dir2/f \ + O:dir3/g O:dir3/h A:dir3/i \ + O:dirN/j O:dirN/k A:dirN/l && + test_cmp expect actual && + + git rev-parse >actual \ + :0:dir1/yo :0:dir2/yo :0:dir3/yo :0:dirN/yo && + git rev-parse >expect \ + A:dir1/yo A:dir2/yo A:dir3/yo A:dirN/yo && + test_cmp expect actual + ) +' + +# Testcase 9f, Renamed directory that only contained immediate subdirs +# (Related to testcases 1e & 9g) +# Commit O: goal/{a,b}/$more_files +# Commit A: priority/{a,b}/$more_files +# Commit B: goal/{a,b}/$more_files, goal/c +# Expected: priority/{a,b}/$more_files, priority/c + +test_expect_success '9f-setup: Renamed directory that only contained immediate subdirs' ' + test_create_repo 9f && + ( + cd 9f && + + mkdir -p goal/a && + mkdir -p goal/b && + echo foo >goal/a/foo && + echo bar >goal/b/bar && + echo baz >goal/b/baz && + git add goal && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv goal/ priority && + test_tick && + git commit -m "A" && + + git checkout B && + echo c >goal/c && + git add goal/c && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '9f-check: Renamed directory that only contained immediate subdirs' ' + ( + cd 9f && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 4 out && + + git rev-parse >actual \ + HEAD:priority/a/foo \ + HEAD:priority/b/bar \ + HEAD:priority/b/baz \ + HEAD:priority/c && + git rev-parse >expect \ + O:goal/a/foo \ + O:goal/b/bar \ + O:goal/b/baz \ + B:goal/c && + test_cmp expect actual && + test_must_fail git rev-parse HEAD:goal/c + ) +' + +# Testcase 9g, Renamed directory that only contained immediate subdirs, immediate subdirs renamed +# (Related to testcases 1e & 9f) +# Commit O: goal/{a,b}/$more_files +# Commit A: priority/{alpha,bravo}/$more_files +# Commit B: goal/{a,b}/$more_files, goal/c +# Expected: priority/{alpha,bravo}/$more_files, priority/c + +test_expect_success '9g-setup: Renamed directory that only contained immediate subdirs, immediate subdirs renamed' ' + test_create_repo 9g && + ( + cd 9g && + + mkdir -p goal/a && + mkdir -p goal/b && + echo foo >goal/a/foo && + echo bar >goal/b/bar && + echo baz >goal/b/baz && + git add goal && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + mkdir priority && + git mv goal/a/ priority/alpha && + git mv goal/b/ priority/beta && + rmdir goal/ && + test_tick && + git commit -m "A" && + + git checkout B && + echo c >goal/c && + git add goal/c && + test_tick && + git commit -m "B" + ) +' + +test_expect_failure '9g-check: Renamed directory that only contained immediate subdirs, immediate subdirs renamed' ' + ( + cd 9g && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 4 out && + + git rev-parse >actual \ + HEAD:priority/alpha/foo \ + HEAD:priority/beta/bar \ + HEAD:priority/beta/baz \ + HEAD:priority/c && + git rev-parse >expect \ + O:goal/a/foo \ + O:goal/b/bar \ + O:goal/b/baz \ + B:goal/c && + test_cmp expect actual && + test_must_fail git rev-parse HEAD:goal/c + ) +' + +# Testcase 9h, Avoid implicit rename if involved as source on other side +# (Extremely closely related to testcase 3a) +# Commit O: z/{b,c,d_1} +# Commit A: z/{b,c,d_2} +# Commit B: y/{b,c}, x/d_1 +# Expected: y/{b,c}, x/d_2 +# NOTE: If we applied the z/ -> y/ rename to z/d, then we'd end up with +# a rename/rename(1to2) conflict (z/d -> y/d vs. x/d) +test_expect_success '9h-setup: Avoid dir rename on merely modified path' ' + test_create_repo 9h && + ( + cd 9h && + + mkdir z && + echo b >z/b && + echo c >z/c && + printf "1\n2\n3\n4\n5\n6\n7\n8\nd\n" >z/d && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + test_tick && + echo more >>z/d && + git add z/d && + git commit -m "A" && + + git checkout B && + mkdir y && + mkdir x && + git mv z/b y/ && + git mv z/c y/ && + git mv z/d x/ && + rmdir z && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '9h-check: Avoid dir rename on merely modified path' ' + ( + cd 9h && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 3 out && + + git rev-parse >actual \ + HEAD:y/b HEAD:y/c HEAD:x/d && + git rev-parse >expect \ + O:z/b O:z/c A:z/d && + test_cmp expect actual + ) +' + +########################################################################### +# Rules suggested by section 9: +# +# If the other side of history did a directory rename to a path that your +# side renamed away, then ignore that particular rename from the other +# side of history for any implicit directory renames. +########################################################################### + +########################################################################### +# SECTION 10: Handling untracked files +# +# unpack_trees(), upon which the recursive merge algorithm is based, aborts +# the operation if untracked or dirty files would be deleted or overwritten +# by the merge. Unfortunately, unpack_trees() does not understand renames, +# and if it doesn't abort, then it muddies up the working directory before +# we even get to the point of detecting renames, so we need some special +# handling, at least in the case of directory renames. +########################################################################### + +# Testcase 10a, Overwrite untracked: normal rename/delete +# Commit O: z/{b,c_1} +# Commit A: z/b + untracked z/c + untracked z/d +# Commit B: z/{b,d_1} +# Expected: Aborted Merge + +# ERROR_MSG(untracked working tree files would be overwritten by merge) + +test_expect_success '10a-setup: Overwrite untracked with normal rename/delete' ' + test_create_repo 10a && + ( + cd 10a && + + mkdir z && + echo b >z/b && + echo c >z/c && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git rm z/c && + test_tick && + git commit -m "A" && + + git checkout B && + git mv z/c z/d && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '10a-check: Overwrite untracked with normal rename/delete' ' + ( + cd 10a && + + git checkout A^0 && + echo very >z/c && + echo important >z/d && + + test_must_fail git merge -s recursive B^0 >out 2>err && + test_i18ngrep "The following untracked working tree files would be overwritten by merge" err && + + git ls-files -s >out && + test_line_count = 1 out && + git ls-files -o >out && + test_line_count = 4 out && + + echo very >expect && + test_cmp expect z/c && + + echo important >expect && + test_cmp expect z/d && + + git rev-parse HEAD:z/b >actual && + git rev-parse O:z/b >expect && + test_cmp expect actual + ) +' + +# Testcase 10b, Overwrite untracked: dir rename + delete +# Commit O: z/{b,c_1} +# Commit A: y/b + untracked y/{c,d,e} +# Commit B: z/{b,d_1,e} +# Expected: Failed Merge; y/b + untracked y/c + untracked y/d on disk + +# z/c_1 -> z/d_1 rename recorded at stage 3 for y/d + +# ERROR_MSG(refusing to lose untracked file at 'y/d') + +test_expect_success '10b-setup: Overwrite untracked with dir rename + delete' ' + test_create_repo 10b && + ( + cd 10b && + + mkdir z && + echo b >z/b && + echo c >z/c && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git rm z/c && + git mv z/ y/ && + test_tick && + git commit -m "A" && + + git checkout B && + git mv z/c z/d && + echo e >z/e && + git add z/e && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '10b-check: Overwrite untracked with dir rename + delete' ' + ( + cd 10b && + + git checkout A^0 && + echo very >y/c && + echo important >y/d && + echo contents >y/e && + + test_must_fail git merge -s recursive B^0 >out 2>err && + test_i18ngrep "CONFLICT (rename/delete).*Version B\^0 of y/d left in tree at y/d~B\^0" out && + test_i18ngrep "Error: Refusing to lose untracked file at y/e; writing to y/e~B\^0 instead" out && + + git ls-files -s >out && + test_line_count = 3 out && + git ls-files -u >out && + test_line_count = 2 out && + git ls-files -o >out && + test_line_count = 5 out && + + git rev-parse >actual \ + :0:y/b :3:y/d :3:y/e && + git rev-parse >expect \ + O:z/b O:z/c B:z/e && + test_cmp expect actual && + + echo very >expect && + test_cmp expect y/c && + + echo important >expect && + test_cmp expect y/d && + + echo contents >expect && + test_cmp expect y/e + ) +' + +# Testcase 10c, Overwrite untracked: dir rename/rename(1to2) +# Commit O: z/{a,b}, x/{c,d} +# Commit A: y/{a,b}, w/c, x/d + different untracked y/c +# Commit B: z/{a,b,c}, x/d +# Expected: Failed Merge; y/{a,b} + x/d + untracked y/c + +# CONFLICT(rename/rename) x/c -> w/c vs y/c + +# y/c~B^0 + +# ERROR_MSG(Refusing to lose untracked file at y/c) + +test_expect_success '10c-setup: Overwrite untracked with dir rename/rename(1to2)' ' + test_create_repo 10c && + ( + cd 10c && + + mkdir z x && + echo a >z/a && + echo b >z/b && + echo c >x/c && + echo d >x/d && + git add z x && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + mkdir w && + git mv x/c w/c && + git mv z/ y/ && + test_tick && + git commit -m "A" && + + git checkout B && + git mv x/c z/ && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '10c-check: Overwrite untracked with dir rename/rename(1to2)' ' + ( + cd 10c && + + git checkout A^0 && + echo important >y/c && + + test_must_fail git merge -s recursive B^0 >out 2>err && + test_i18ngrep "CONFLICT (rename/rename)" out && + test_i18ngrep "Refusing to lose untracked file at y/c; adding as y/c~B\^0 instead" out && + + git ls-files -s >out && + test_line_count = 6 out && + git ls-files -u >out && + test_line_count = 3 out && + git ls-files -o >out && + test_line_count = 3 out && + + git rev-parse >actual \ + :0:y/a :0:y/b :0:x/d :1:x/c :2:w/c :3:y/c && + git rev-parse >expect \ + O:z/a O:z/b O:x/d O:x/c O:x/c O:x/c && + test_cmp expect actual && + + git hash-object y/c~B^0 >actual && + git rev-parse O:x/c >expect && + test_cmp expect actual && + + echo important >expect && + test_cmp expect y/c + ) +' + +# Testcase 10d, Delete untracked w/ dir rename/rename(2to1) +# Commit O: z/{a,b,c_1}, x/{d,e,f_2} +# Commit A: y/{a,b}, x/{d,e,f_2,wham_1} + untracked y/wham +# Commit B: z/{a,b,c_1,wham_2}, y/{d,e} +# Expected: Failed Merge; y/{a,b,d,e} + untracked y/{wham,wham~B^0,wham~HEAD}+ +# CONFLICT(rename/rename) z/c_1 vs x/f_2 -> y/wham +# ERROR_MSG(Refusing to lose untracked file at y/wham) + +test_expect_success '10d-setup: Delete untracked with dir rename/rename(2to1)' ' + test_create_repo 10d && + ( + cd 10d && + + mkdir z x && + echo a >z/a && + echo b >z/b && + echo c >z/c && + echo d >x/d && + echo e >x/e && + echo f >x/f && + git add z x && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z/c x/wham && + git mv z/ y/ && + test_tick && + git commit -m "A" && + + git checkout B && + git mv x/f z/wham && + git mv x/ y/ && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '10d-check: Delete untracked with dir rename/rename(2to1)' ' + ( + cd 10d && + + git checkout A^0 && + echo important >y/wham && + + test_must_fail git merge -s recursive B^0 >out 2>err && + test_i18ngrep "CONFLICT (rename/rename)" out && + test_i18ngrep "Refusing to lose untracked file at y/wham" out && + + git ls-files -s >out && + test_line_count = 6 out && + git ls-files -u >out && + test_line_count = 2 out && + git ls-files -o >out && + test_line_count = 4 out && + + git rev-parse >actual \ + :0:y/a :0:y/b :0:y/d :0:y/e :2:y/wham :3:y/wham && + git rev-parse >expect \ + O:z/a O:z/b O:x/d O:x/e O:z/c O:x/f && + test_cmp expect actual && + + test_must_fail git rev-parse :1:y/wham && + + echo important >expect && + test_cmp expect y/wham && + + git hash-object >actual \ + y/wham~B^0 y/wham~HEAD && + git rev-parse >expect \ + O:x/f O:z/c && + test_cmp expect actual + ) +' + +# Testcase 10e, Does git complain about untracked file that's not in the way? +# Commit O: z/{a,b} +# Commit A: y/{a,b} + untracked z/c +# Commit B: z/{a,b,c} +# Expected: y/{a,b,c} + untracked z/c + +test_expect_success '10e-setup: Does git complain about untracked file that is not really in the way?' ' + test_create_repo 10e && + ( + cd 10e && + + mkdir z && + echo a >z/a && + echo b >z/b && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z/ y/ && + test_tick && + git commit -m "A" && + + git checkout B && + echo c >z/c && + git add z/c && + test_tick && + git commit -m "B" + ) +' + +test_expect_failure '10e-check: Does git complain about untracked file that is not really in the way?' ' + ( + cd 10e && + + git checkout A^0 && + mkdir z && + echo random >z/c && + + git merge -s recursive B^0 >out 2>err && + test_i18ngrep ! "following untracked working tree files would be overwritten by merge" err && + + git ls-files -s >out && + test_line_count = 3 out && + git ls-files -u >out && + test_line_count = 0 out && + git ls-files -o >out && + test_line_count = 3 out && + + git rev-parse >actual \ + :0:y/a :0:y/b :0:y/c && + git rev-parse >expect \ + O:z/a O:z/b B:z/c && + test_cmp expect actual && + + echo random >expect && + test_cmp expect z/c + ) +' + +########################################################################### +# SECTION 11: Handling dirty (not up-to-date) files +# +# unpack_trees(), upon which the recursive merge algorithm is based, aborts +# the operation if untracked or dirty files would be deleted or overwritten +# by the merge. Unfortunately, unpack_trees() does not understand renames, +# and if it doesn't abort, then it muddies up the working directory before +# we even get to the point of detecting renames, so we need some special +# handling. This was true even of normal renames, but there are additional +# codepaths that need special handling with directory renames. Add +# testcases for both renamed-by-directory-rename-detection and standard +# rename cases. +########################################################################### + +# Testcase 11a, Avoid losing dirty contents with simple rename +# Commit O: z/{a,b_v1}, +# Commit A: z/{a,c_v1}, and z/c_v1 has uncommitted mods +# Commit B: z/{a,b_v2} +# Expected: ERROR_MSG(Refusing to lose dirty file at z/c) + +# z/a, staged version of z/c has sha1sum matching B:z/b_v2, +# z/c~HEAD with contents of B:z/b_v2, +# z/c with uncommitted mods on top of A:z/c_v1 + +test_expect_success '11a-setup: Avoid losing dirty contents with simple rename' ' + test_create_repo 11a && + ( + cd 11a && + + mkdir z && + echo a >z/a && + test_seq 1 10 >z/b && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z/b z/c && + test_tick && + git commit -m "A" && + + git checkout B && + echo 11 >>z/b && + git add z/b && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '11a-check: Avoid losing dirty contents with simple rename' ' + ( + cd 11a && + + git checkout A^0 && + echo stuff >>z/c && + + test_must_fail git merge -s recursive B^0 >out 2>err && + test_i18ngrep "Refusing to lose dirty file at z/c" out && + + test_seq 1 10 >expected && + echo stuff >>expected && + test_cmp expected z/c && + + git ls-files -s >out && + test_line_count = 2 out && + git ls-files -u >out && + test_line_count = 1 out && + git ls-files -o >out && + test_line_count = 4 out && + + git rev-parse >actual \ + :0:z/a :2:z/c && + git rev-parse >expect \ + O:z/a B:z/b && + test_cmp expect actual && + + git hash-object z/c~HEAD >actual && + git rev-parse B:z/b >expect && + test_cmp expect actual + ) +' + +# Testcase 11b, Avoid losing dirty file involved in directory rename +# Commit O: z/a, x/{b,c_v1} +# Commit A: z/{a,c_v1}, x/b, and z/c_v1 has uncommitted mods +# Commit B: y/a, x/{b,c_v2} +# Expected: y/{a,c_v2}, x/b, z/c_v1 with uncommitted mods untracked, +# ERROR_MSG(Refusing to lose dirty file at z/c) + + +test_expect_success '11b-setup: Avoid losing dirty file involved in directory rename' ' + test_create_repo 11b && + ( + cd 11b && + + mkdir z x && + echo a >z/a && + echo b >x/b && + test_seq 1 10 >x/c && + git add z x && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv x/c z/c && + test_tick && + git commit -m "A" && + + git checkout B && + git mv z y && + echo 11 >>x/c && + git add x/c && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '11b-check: Avoid losing dirty file involved in directory rename' ' + ( + cd 11b && + + git checkout A^0 && + echo stuff >>z/c && + + git merge -s recursive B^0 >out 2>err && + test_i18ngrep "Refusing to lose dirty file at z/c" out && + + grep -q stuff z/c && + test_seq 1 10 >expected && + echo stuff >>expected && + test_cmp expected z/c && + + git ls-files -s >out && + test_line_count = 3 out && + git ls-files -u >out && + test_line_count = 0 out && + git ls-files -m >out && + test_line_count = 0 out && + git ls-files -o >out && + test_line_count = 4 out && + + git rev-parse >actual \ + :0:x/b :0:y/a :0:y/c && + git rev-parse >expect \ + O:x/b O:z/a B:x/c && + test_cmp expect actual && + + git hash-object y/c >actual && + git rev-parse B:x/c >expect && + test_cmp expect actual + ) +' + +# Testcase 11c, Avoid losing not-up-to-date with rename + D/F conflict +# Commit O: y/a, x/{b,c_v1} +# Commit A: y/{a,c_v1}, x/b, and y/c_v1 has uncommitted mods +# Commit B: y/{a,c/d}, x/{b,c_v2} +# Expected: Abort_msg("following files would be overwritten by merge") + +# y/c left untouched (still has uncommitted mods) + +test_expect_success '11c-setup: Avoid losing not-uptodate with rename + D/F conflict' ' + test_create_repo 11c && + ( + cd 11c && + + mkdir y x && + echo a >y/a && + echo b >x/b && + test_seq 1 10 >x/c && + git add y x && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv x/c y/c && + test_tick && + git commit -m "A" && + + git checkout B && + mkdir y/c && + echo d >y/c/d && + echo 11 >>x/c && + git add x/c y/c/d && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '11c-check: Avoid losing not-uptodate with rename + D/F conflict' ' + ( + cd 11c && + + git checkout A^0 && + echo stuff >>y/c && + + test_must_fail git merge -s recursive B^0 >out 2>err && + test_i18ngrep "following files would be overwritten by merge" err && + + grep -q stuff y/c && + test_seq 1 10 >expected && + echo stuff >>expected && + test_cmp expected y/c && + + git ls-files -s >out && + test_line_count = 3 out && + git ls-files -u >out && + test_line_count = 0 out && + git ls-files -m >out && + test_line_count = 1 out && + git ls-files -o >out && + test_line_count = 3 out + ) +' + +# Testcase 11d, Avoid losing not-up-to-date with rename + D/F conflict +# Commit O: z/a, x/{b,c_v1} +# Commit A: z/{a,c_v1}, x/b, and z/c_v1 has uncommitted mods +# Commit B: y/{a,c/d}, x/{b,c_v2} +# Expected: D/F: y/c_v2 vs y/c/d) + +# Warning_Msg("Refusing to lose dirty file at z/c) + +# y/{a,c~HEAD,c/d}, x/b, now-untracked z/c_v1 with uncommitted mods + +test_expect_success '11d-setup: Avoid losing not-uptodate with rename + D/F conflict' ' + test_create_repo 11d && + ( + cd 11d && + + mkdir z x && + echo a >z/a && + echo b >x/b && + test_seq 1 10 >x/c && + git add z x && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv x/c z/c && + test_tick && + git commit -m "A" && + + git checkout B && + git mv z y && + mkdir y/c && + echo d >y/c/d && + echo 11 >>x/c && + git add x/c y/c/d && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '11d-check: Avoid losing not-uptodate with rename + D/F conflict' ' + ( + cd 11d && + + git checkout A^0 && + echo stuff >>z/c && + + test_must_fail git merge -s recursive B^0 >out 2>err && + test_i18ngrep "Refusing to lose dirty file at z/c" out && + + grep -q stuff z/c && + test_seq 1 10 >expected && + echo stuff >>expected && + test_cmp expected z/c + + git ls-files -s >out && + test_line_count = 4 out && + git ls-files -u >out && + test_line_count = 1 out && + git ls-files -o >out && + test_line_count = 5 out && + + git rev-parse >actual \ + :0:x/b :0:y/a :0:y/c/d :3:y/c && + git rev-parse >expect \ + O:x/b O:z/a B:y/c/d B:x/c && + test_cmp expect actual && + + git hash-object y/c~HEAD >actual && + git rev-parse B:x/c >expect && + test_cmp expect actual + ) +' + +# Testcase 11e, Avoid deleting not-up-to-date with dir rename/rename(1to2)/add +# Commit O: z/{a,b}, x/{c_1,d} +# Commit A: y/{a,b,c_2}, x/d, w/c_1, and y/c_2 has uncommitted mods +# Commit B: z/{a,b,c_1}, x/d +# Expected: Failed Merge; y/{a,b} + x/d + +# CONFLICT(rename/rename) x/c_1 -> w/c_1 vs y/c_1 + +# ERROR_MSG(Refusing to lose dirty file at y/c) +# y/c~B^0 has O:x/c_1 contents +# y/c~HEAD has A:y/c_2 contents +# y/c has dirty file from before merge + +test_expect_success '11e-setup: Avoid deleting not-uptodate with dir rename/rename(1to2)/add' ' + test_create_repo 11e && + ( + cd 11e && + + mkdir z x && + echo a >z/a && + echo b >z/b && + echo c >x/c && + echo d >x/d && + git add z x && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z/ y/ && + echo different >y/c && + mkdir w && + git mv x/c w/ && + git add y/c && + test_tick && + git commit -m "A" && + + git checkout B && + git mv x/c z/ && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '11e-check: Avoid deleting not-uptodate with dir rename/rename(1to2)/add' ' + ( + cd 11e && + + git checkout A^0 && + echo mods >>y/c && + + test_must_fail git merge -s recursive B^0 >out 2>err && + test_i18ngrep "CONFLICT (rename/rename)" out && + test_i18ngrep "Refusing to lose dirty file at y/c" out && + + git ls-files -s >out && + test_line_count = 7 out && + git ls-files -u >out && + test_line_count = 4 out && + git ls-files -o >out && + test_line_count = 4 out && + + echo different >expected && + echo mods >>expected && + test_cmp expected y/c && + + git rev-parse >actual \ + :0:y/a :0:y/b :0:x/d :1:x/c :2:w/c :2:y/c :3:y/c && + git rev-parse >expect \ + O:z/a O:z/b O:x/d O:x/c O:x/c A:y/c O:x/c && + test_cmp expect actual && + + git hash-object >actual \ + y/c~B^0 y/c~HEAD && + git rev-parse >expect \ + O:x/c A:y/c && + test_cmp expect actual + ) +' + +# Testcase 11f, Avoid deleting not-up-to-date w/ dir rename/rename(2to1) +# Commit O: z/{a,b}, x/{c_1,d_2} +# Commit A: y/{a,b,wham_1}, x/d_2, except y/wham has uncommitted mods +# Commit B: z/{a,b,wham_2}, x/c_1 +# Expected: Failed Merge; y/{a,b} + untracked y/{wham~B^0,wham~B^HEAD} + +# y/wham with dirty changes from before merge + +# CONFLICT(rename/rename) x/c vs x/d -> y/wham +# ERROR_MSG(Refusing to lose dirty file at y/wham) + +test_expect_success '11f-setup: Avoid deleting not-uptodate with dir rename/rename(2to1)' ' + test_create_repo 11f && + ( + cd 11f && + + mkdir z x && + echo a >z/a && + echo b >z/b && + test_seq 1 10 >x/c && + echo d >x/d && + git add z x && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z/ y/ && + git mv x/c y/wham && + test_tick && + git commit -m "A" && + + git checkout B && + git mv x/d z/wham && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '11f-check: Avoid deleting not-uptodate with dir rename/rename(2to1)' ' + ( + cd 11f && + + git checkout A^0 && + echo important >>y/wham && + + test_must_fail git merge -s recursive B^0 >out 2>err && + test_i18ngrep "CONFLICT (rename/rename)" out && + test_i18ngrep "Refusing to lose dirty file at y/wham" out && + + git ls-files -s >out && + test_line_count = 4 out && + git ls-files -u >out && + test_line_count = 2 out && + git ls-files -o >out && + test_line_count = 4 out && + + test_seq 1 10 >expected && + echo important >>expected && + test_cmp expected y/wham && + + test_must_fail git rev-parse :1:y/wham && + git hash-object >actual \ + y/wham~B^0 y/wham~HEAD && + git rev-parse >expect \ + O:x/d O:x/c && + test_cmp expect actual && + + git rev-parse >actual \ + :0:y/a :0:y/b :2:y/wham :3:y/wham && + git rev-parse >expect \ + O:z/a O:z/b O:x/c O:x/d && + test_cmp expect actual + ) +' + +########################################################################### +# SECTION 12: Everything else +# +# Tests suggested by others. Tests added after implementation completed +# and submitted. Grab bag. +########################################################################### + +# Testcase 12a, Moving one directory hierarchy into another +# (Related to testcase 9a) +# Commit O: node1/{leaf1,leaf2}, node2/{leaf3,leaf4} +# Commit A: node1/{leaf1,leaf2,node2/{leaf3,leaf4}} +# Commit B: node1/{leaf1,leaf2,leaf5}, node2/{leaf3,leaf4,leaf6} +# Expected: node1/{leaf1,leaf2,leaf5,node2/{leaf3,leaf4,leaf6}} + +test_expect_success '12a-setup: Moving one directory hierarchy into another' ' + test_create_repo 12a && + ( + cd 12a && + + mkdir -p node1 node2 && + echo leaf1 >node1/leaf1 && + echo leaf2 >node1/leaf2 && + echo leaf3 >node2/leaf3 && + echo leaf4 >node2/leaf4 && + git add node1 node2 && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv node2/ node1/ && + test_tick && + git commit -m "A" && + + git checkout B && + echo leaf5 >node1/leaf5 && + echo leaf6 >node2/leaf6 && + git add node1 node2 && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '12a-check: Moving one directory hierarchy into another' ' + ( + cd 12a && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 6 out && + + git rev-parse >actual \ + HEAD:node1/leaf1 HEAD:node1/leaf2 HEAD:node1/leaf5 \ + HEAD:node1/node2/leaf3 \ + HEAD:node1/node2/leaf4 \ + HEAD:node1/node2/leaf6 && + git rev-parse >expect \ + O:node1/leaf1 O:node1/leaf2 B:node1/leaf5 \ + O:node2/leaf3 \ + O:node2/leaf4 \ + B:node2/leaf6 && + test_cmp expect actual + ) +' + +# Testcase 12b, Moving two directory hierarchies into each other +# (Related to testcases 1c and 12c) +# Commit O: node1/{leaf1, leaf2}, node2/{leaf3, leaf4} +# Commit A: node1/{leaf1, leaf2, node2/{leaf3, leaf4}} +# Commit B: node2/{leaf3, leaf4, node1/{leaf1, leaf2}} +# Expected: node1/node2/node1/{leaf1, leaf2}, +# node2/node1/node2/{leaf3, leaf4} +# NOTE: Without directory renames, we would expect +# node2/node1/{leaf1, leaf2}, +# node1/node2/{leaf3, leaf4} +# with directory rename detection, we note that +# commit A renames node2/ -> node1/node2/ +# commit B renames node1/ -> node2/node1/ +# therefore, applying those directory renames to the initial result +# (making all four paths experience a transitive renaming), yields +# the expected result. +# +# You may ask, is it weird to have two directories rename each other? +# To which, I can do no more than shrug my shoulders and say that +# even simple rules give weird results when given weird inputs. + +test_expect_success '12b-setup: Moving one directory hierarchy into another' ' + test_create_repo 12b && + ( + cd 12b && + + mkdir -p node1 node2 && + echo leaf1 >node1/leaf1 && + echo leaf2 >node1/leaf2 && + echo leaf3 >node2/leaf3 && + echo leaf4 >node2/leaf4 && + git add node1 node2 && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv node2/ node1/ && + test_tick && + git commit -m "A" && + + git checkout B && + git mv node1/ node2/ && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '12b-check: Moving one directory hierarchy into another' ' + ( + cd 12b && + + git checkout A^0 && + + git merge -s recursive B^0 && + + git ls-files -s >out && + test_line_count = 4 out && + + git rev-parse >actual \ + HEAD:node1/node2/node1/leaf1 \ + HEAD:node1/node2/node1/leaf2 \ + HEAD:node2/node1/node2/leaf3 \ + HEAD:node2/node1/node2/leaf4 && + git rev-parse >expect \ + O:node1/leaf1 \ + O:node1/leaf2 \ + O:node2/leaf3 \ + O:node2/leaf4 && + test_cmp expect actual + ) +' + +# Testcase 12c, Moving two directory hierarchies into each other w/ content merge +# (Related to testcase 12b) +# Commit O: node1/{ leaf1_1, leaf2_1}, node2/{leaf3_1, leaf4_1} +# Commit A: node1/{ leaf1_2, leaf2_2, node2/{leaf3_2, leaf4_2}} +# Commit B: node2/{node1/{leaf1_3, leaf2_3}, leaf3_3, leaf4_3} +# Expected: Content merge conflicts for each of: +# node1/node2/node1/{leaf1, leaf2}, +# node2/node1/node2/{leaf3, leaf4} +# NOTE: This is *exactly* like 12c, except that every path is modified on +# each side of the merge. + +test_expect_success '12c-setup: Moving one directory hierarchy into another w/ content merge' ' + test_create_repo 12c && + ( + cd 12c && + + mkdir -p node1 node2 && + printf "1\n2\n3\n4\n5\n6\n7\n8\nleaf1\n" >node1/leaf1 && + printf "1\n2\n3\n4\n5\n6\n7\n8\nleaf2\n" >node1/leaf2 && + printf "1\n2\n3\n4\n5\n6\n7\n8\nleaf3\n" >node2/leaf3 && + printf "1\n2\n3\n4\n5\n6\n7\n8\nleaf4\n" >node2/leaf4 && + git add node1 node2 && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv node2/ node1/ && + for i in `git ls-files`; do echo side A >>$i; done && + git add -u && + test_tick && + git commit -m "A" && + + git checkout B && + git mv node1/ node2/ && + for i in `git ls-files`; do echo side B >>$i; done && + git add -u && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '12c-check: Moving one directory hierarchy into another w/ content merge' ' + ( + cd 12c && + + git checkout A^0 && + + test_must_fail git merge -s recursive B^0 && + + git ls-files -u >out && + test_line_count = 12 out && + + git rev-parse >actual \ + :1:node1/node2/node1/leaf1 \ + :1:node1/node2/node1/leaf2 \ + :1:node2/node1/node2/leaf3 \ + :1:node2/node1/node2/leaf4 \ + :2:node1/node2/node1/leaf1 \ + :2:node1/node2/node1/leaf2 \ + :2:node2/node1/node2/leaf3 \ + :2:node2/node1/node2/leaf4 \ + :3:node1/node2/node1/leaf1 \ + :3:node1/node2/node1/leaf2 \ + :3:node2/node1/node2/leaf3 \ + :3:node2/node1/node2/leaf4 && + git rev-parse >expect \ + O:node1/leaf1 \ + O:node1/leaf2 \ + O:node2/leaf3 \ + O:node2/leaf4 \ + A:node1/leaf1 \ + A:node1/leaf2 \ + A:node1/node2/leaf3 \ + A:node1/node2/leaf4 \ + B:node2/node1/leaf1 \ + B:node2/node1/leaf2 \ + B:node2/leaf3 \ + B:node2/leaf4 && + test_cmp expect actual + ) +' + +test_done diff --git a/t/t6046-merge-skip-unneeded-updates.sh b/t/t6046-merge-skip-unneeded-updates.sh new file mode 100755 index 0000000000..fcefffcaec --- /dev/null +++ b/t/t6046-merge-skip-unneeded-updates.sh @@ -0,0 +1,761 @@ +#!/bin/sh + +test_description="merge cases" + +# The setup for all of them, pictorially, is: +# +# A +# o +# / \ +# O o ? +# \ / +# o +# B +# +# To help make it easier to follow the flow of tests, they have been +# divided into sections and each test will start with a quick explanation +# of what commits O, A, and B contain. +# +# Notation: +# z/{b,c} means files z/b and z/c both exist +# x/d_1 means file x/d exists with content d1. (Purpose of the +# underscore notation is to differentiate different +# files that might be renamed into each other's paths.) + +. ./test-lib.sh + + +########################################################################### +# SECTION 1: Cases involving no renames (one side has subset of changes of +# the other side) +########################################################################### + +# Testcase 1a, Changes on A, subset of changes on B +# Commit O: b_1 +# Commit A: b_2 +# Commit B: b_3 +# Expected: b_2 + +test_expect_success '1a-setup: Modify(A)/Modify(B), change on B subset of A' ' + test_create_repo 1a && + ( + cd 1a && + + test_write_lines 1 2 3 4 5 6 7 8 9 10 >b && + git add b && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + test_write_lines 1 2 3 4 5 5.5 6 7 8 9 10 10.5 >b && + git add b && + test_tick && + git commit -m "A" && + + git checkout B && + test_write_lines 1 2 3 4 5 5.5 6 7 8 9 10 >b && + git add b && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '1a-check-L: Modify(A)/Modify(B), change on B subset of A' ' + test_when_finished "git -C 1a reset --hard" && + test_when_finished "git -C 1a clean -fd" && + ( + cd 1a && + + git checkout A^0 && + + test-tool chmtime =31337 b && + test-tool chmtime -v +0 b >expected-mtime && + + GIT_MERGE_VERBOSITY=3 git merge -s recursive B^0 >out 2>err && + + test_i18ngrep "Skipped b" out && + test_must_be_empty err && + + test-tool chmtime -v +0 b >actual-mtime && + test_cmp expected-mtime actual-mtime && + + git ls-files -s >index_files && + test_line_count = 1 index_files && + + git rev-parse >actual HEAD:b && + git rev-parse >expect A:b && + test_cmp expect actual && + + git hash-object b >actual && + git rev-parse A:b >expect && + test_cmp expect actual + ) +' + +test_expect_success '1a-check-R: Modify(A)/Modify(B), change on B subset of A' ' + test_when_finished "git -C 1a reset --hard" && + test_when_finished "git -C 1a clean -fd" && + ( + cd 1a && + + git checkout B^0 && + + GIT_MERGE_VERBOSITY=3 git merge -s recursive A^0 >out 2>err && + + test_i18ngrep "Auto-merging b" out && + test_must_be_empty err && + + git ls-files -s >index_files && + test_line_count = 1 index_files && + + git rev-parse >actual HEAD:b && + git rev-parse >expect A:b && + test_cmp expect actual && + + git hash-object b >actual && + git rev-parse A:b >expect && + test_cmp expect actual + ) +' + + +########################################################################### +# SECTION 2: Cases involving basic renames +########################################################################### + +# Testcase 2a, Changes on A, rename on B +# Commit O: b_1 +# Commit A: b_2 +# Commit B: c_1 +# Expected: c_2 + +test_expect_success '2a-setup: Modify(A)/rename(B)' ' + test_create_repo 2a && + ( + cd 2a && + + test_seq 1 10 >b && + git add b && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + test_seq 1 11 >b && + git add b && + test_tick && + git commit -m "A" && + + git checkout B && + git mv b c && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '2a-check-L: Modify/rename, merge into modify side' ' + test_when_finished "git -C 2a reset --hard" && + test_when_finished "git -C 2a clean -fd" && + ( + cd 2a && + + git checkout A^0 && + + GIT_MERGE_VERBOSITY=3 git merge -s recursive B^0 >out 2>err && + + test_i18ngrep ! "Skipped c" out && + test_must_be_empty err && + + git ls-files -s >index_files && + test_line_count = 1 index_files && + + git rev-parse >actual HEAD:c && + git rev-parse >expect A:b && + test_cmp expect actual && + + git hash-object c >actual && + git rev-parse A:b >expect && + test_cmp expect actual && + + test_must_fail git rev-parse HEAD:b && + test_path_is_missing b + ) +' + +test_expect_success '2a-check-R: Modify/rename, merge into rename side' ' + test_when_finished "git -C 2a reset --hard" && + test_when_finished "git -C 2a clean -fd" && + ( + cd 2a && + + git checkout B^0 && + + GIT_MERGE_VERBOSITY=3 git merge -s recursive A^0 >out 2>err && + + test_i18ngrep ! "Skipped c" out && + test_must_be_empty err && + + git ls-files -s >index_files && + test_line_count = 1 index_files && + + git rev-parse >actual HEAD:c && + git rev-parse >expect A:b && + test_cmp expect actual && + + git hash-object c >actual && + git rev-parse A:b >expect && + test_cmp expect actual && + + test_must_fail git rev-parse HEAD:b && + test_path_is_missing b + ) +' + +# Testcase 2b, Changed and renamed on A, subset of changes on B +# Commit O: b_1 +# Commit A: c_2 +# Commit B: b_3 +# Expected: c_2 + +test_expect_success '2b-setup: Rename+Mod(A)/Mod(B), B mods subset of A' ' + test_create_repo 2b && + ( + cd 2b && + + test_write_lines 1 2 3 4 5 6 7 8 9 10 >b && + git add b && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + test_write_lines 1 2 3 4 5 5.5 6 7 8 9 10 10.5 >b && + git add b && + git mv b c && + test_tick && + git commit -m "A" && + + git checkout B && + test_write_lines 1 2 3 4 5 5.5 6 7 8 9 10 >b && + git add b && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '2b-check-L: Rename+Mod(A)/Mod(B), B mods subset of A' ' + test_when_finished "git -C 2b reset --hard" && + test_when_finished "git -C 2b clean -fd" && + ( + cd 2b && + + git checkout A^0 && + + test-tool chmtime =31337 c && + test-tool chmtime -v +0 c >expected-mtime && + + GIT_MERGE_VERBOSITY=3 git merge -s recursive B^0 >out 2>err && + + test_i18ngrep "Skipped c" out && + test_must_be_empty err && + + test-tool chmtime -v +0 c >actual-mtime && + test_cmp expected-mtime actual-mtime && + + git ls-files -s >index_files && + test_line_count = 1 index_files && + + git rev-parse >actual HEAD:c && + git rev-parse >expect A:c && + test_cmp expect actual && + + git hash-object c >actual && + git rev-parse A:c >expect && + test_cmp expect actual && + + test_must_fail git rev-parse HEAD:b && + test_path_is_missing b + ) +' + +test_expect_success '2b-check-R: Rename+Mod(A)/Mod(B), B mods subset of A' ' + test_when_finished "git -C 2b reset --hard" && + test_when_finished "git -C 2b clean -fd" && + ( + cd 2b && + + git checkout B^0 && + + GIT_MERGE_VERBOSITY=3 git merge -s recursive A^0 >out 2>err && + + test_i18ngrep "Auto-merging c" out && + test_must_be_empty err && + + git ls-files -s >index_files && + test_line_count = 1 index_files && + + git rev-parse >actual HEAD:c && + git rev-parse >expect A:c && + test_cmp expect actual && + + git hash-object c >actual && + git rev-parse A:c >expect && + test_cmp expect actual && + + test_must_fail git rev-parse HEAD:b && + test_path_is_missing b + ) +' + +# Testcase 2c, Changes on A, rename on B +# Commit O: b_1 +# Commit A: b_2, c_3 +# Commit B: c_1 +# Expected: rename/add conflict c_2 vs c_3 +# +# NOTE: Since A modified b_1->b_2, and B renamed b_1->c_1, the threeway +# merge of those files should result in c_2. We then should have a +# rename/add conflict between c_2 and c_3. However, if we note in +# merge_content() that A had the right contents (b_2 has same +# contents as c_2, just at a different name), and that A had the +# right path present (c_3 existed) and thus decides that it can +# skip the update, then we're in trouble. This test verifies we do +# not make that particular mistake. + +test_expect_success '2c-setup: Modify b & add c VS rename b->c' ' + test_create_repo 2c && + ( + cd 2c && + + test_seq 1 10 >b && + git add b && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + test_seq 1 11 >b && + echo whatever >c && + git add b c && + test_tick && + git commit -m "A" && + + git checkout B && + git mv b c && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '2c-check: Modify b & add c VS rename b->c' ' + ( + cd 2c && + + git checkout A^0 && + + GIT_MERGE_VERBOSITY=3 test_must_fail git merge -s recursive B^0 >out 2>err && + + test_i18ngrep "CONFLICT (rename/add): Rename b->c" out && + test_i18ngrep ! "Skipped c" out && + test_must_be_empty err + + # FIXME: rename/add conflicts are horribly broken right now; + # when I get back to my patch series fixing it and + # rename/rename(2to1) conflicts to bring them in line with + # how add/add conflicts behave, then checks like the below + # could be added. But that patch series is waiting until + # the rename-directory-detection series lands, which this + # is part of. And in the mean time, I do not want to further + # enforce broken behavior. So for now, the main test is the + # one above that err is an empty file. + + #git ls-files -s >index_files && + #test_line_count = 2 index_files && + + #git rev-parse >actual :2:c :3:c && + #git rev-parse >expect A:b A:c && + #test_cmp expect actual && + + #git cat-file -p A:b >>merged && + #git cat-file -p A:c >>merge-me && + #>empty && + #test_must_fail git merge-file \ + # -L "Temporary merge branch 1" \ + # -L "" \ + # -L "Temporary merge branch 2" \ + # merged empty merge-me && + #sed -e "s/^\([<=>]\)/\1\1\1/" merged >merged-internal && + + #git hash-object c >actual && + #git hash-object merged-internal >expect && + #test_cmp expect actual && + + #test_path_is_missing b + ) +' + + +########################################################################### +# SECTION 3: Cases involving directory renames +# +# NOTE: +# Directory renames only apply when one side renames a directory, and the +# other side adds or renames a path into that directory. Applying the +# directory rename to that new path creates a new pathname that didn't +# exist on either side of history. Thus, it is impossible for the +# merge contents to already be at the right path, so all of these checks +# exist just to make sure that updates are not skipped. +########################################################################### + +# Testcase 3a, Change + rename into dir foo on A, dir rename foo->bar on B +# Commit O: bq_1, foo/whatever +# Commit A: foo/{bq_2, whatever} +# Commit B: bq_1, bar/whatever +# Expected: bar/{bq_2, whatever} + +test_expect_success '3a-setup: bq_1->foo/bq_2 on A, foo/->bar/ on B' ' + test_create_repo 3a && + ( + cd 3a && + + mkdir foo && + test_seq 1 10 >bq && + test_write_lines a b c d e f g h i j k >foo/whatever && + git add bq foo/whatever && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + test_seq 1 11 >bq && + git add bq && + git mv bq foo/ && + test_tick && + git commit -m "A" && + + git checkout B && + git mv foo/ bar/ && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '3a-check-L: bq_1->foo/bq_2 on A, foo/->bar/ on B' ' + test_when_finished "git -C 3a reset --hard" && + test_when_finished "git -C 3a clean -fd" && + ( + cd 3a && + + git checkout A^0 && + + GIT_MERGE_VERBOSITY=3 git merge -s recursive B^0 >out 2>err && + + test_i18ngrep ! "Skipped bar/bq" out && + test_must_be_empty err && + + git ls-files -s >index_files && + test_line_count = 2 index_files && + + git rev-parse >actual HEAD:bar/bq HEAD:bar/whatever && + git rev-parse >expect A:foo/bq A:foo/whatever && + test_cmp expect actual && + + git hash-object bar/bq bar/whatever >actual && + git rev-parse A:foo/bq A:foo/whatever >expect && + test_cmp expect actual && + + test_must_fail git rev-parse HEAD:bq HEAD:foo/bq && + test_path_is_missing bq foo/bq foo/whatever + ) +' + +test_expect_success '3a-check-R: bq_1->foo/bq_2 on A, foo/->bar/ on B' ' + test_when_finished "git -C 3a reset --hard" && + test_when_finished "git -C 3a clean -fd" && + ( + cd 3a && + + git checkout B^0 && + + GIT_MERGE_VERBOSITY=3 git merge -s recursive A^0 >out 2>err && + + test_i18ngrep ! "Skipped bar/bq" out && + test_must_be_empty err && + + git ls-files -s >index_files && + test_line_count = 2 index_files && + + git rev-parse >actual HEAD:bar/bq HEAD:bar/whatever && + git rev-parse >expect A:foo/bq A:foo/whatever && + test_cmp expect actual && + + git hash-object bar/bq bar/whatever >actual && + git rev-parse A:foo/bq A:foo/whatever >expect && + test_cmp expect actual && + + test_must_fail git rev-parse HEAD:bq HEAD:foo/bq && + test_path_is_missing bq foo/bq foo/whatever + ) +' + +# Testcase 3b, rename into dir foo on A, dir rename foo->bar + change on B +# Commit O: bq_1, foo/whatever +# Commit A: foo/{bq_1, whatever} +# Commit B: bq_2, bar/whatever +# Expected: bar/{bq_2, whatever} + +test_expect_success '3b-setup: bq_1->foo/bq_2 on A, foo/->bar/ on B' ' + test_create_repo 3b && + ( + cd 3b && + + mkdir foo && + test_seq 1 10 >bq && + test_write_lines a b c d e f g h i j k >foo/whatever && + git add bq foo/whatever && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv bq foo/ && + test_tick && + git commit -m "A" && + + git checkout B && + test_seq 1 11 >bq && + git add bq && + git mv foo/ bar/ && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '3b-check-L: bq_1->foo/bq_2 on A, foo/->bar/ on B' ' + test_when_finished "git -C 3b reset --hard" && + test_when_finished "git -C 3b clean -fd" && + ( + cd 3b && + + git checkout A^0 && + + GIT_MERGE_VERBOSITY=3 git merge -s recursive B^0 >out 2>err && + + test_i18ngrep ! "Skipped bar/bq" out && + test_must_be_empty err && + + git ls-files -s >index_files && + test_line_count = 2 index_files && + + git rev-parse >actual HEAD:bar/bq HEAD:bar/whatever && + git rev-parse >expect B:bq A:foo/whatever && + test_cmp expect actual && + + git hash-object bar/bq bar/whatever >actual && + git rev-parse B:bq A:foo/whatever >expect && + test_cmp expect actual && + + test_must_fail git rev-parse HEAD:bq HEAD:foo/bq && + test_path_is_missing bq foo/bq foo/whatever + ) +' + +test_expect_success '3b-check-R: bq_1->foo/bq_2 on A, foo/->bar/ on B' ' + test_when_finished "git -C 3b reset --hard" && + test_when_finished "git -C 3b clean -fd" && + ( + cd 3b && + + git checkout B^0 && + + GIT_MERGE_VERBOSITY=3 git merge -s recursive A^0 >out 2>err && + + test_i18ngrep ! "Skipped bar/bq" out && + test_must_be_empty err && + + git ls-files -s >index_files && + test_line_count = 2 index_files && + + git rev-parse >actual HEAD:bar/bq HEAD:bar/whatever && + git rev-parse >expect B:bq A:foo/whatever && + test_cmp expect actual && + + git hash-object bar/bq bar/whatever >actual && + git rev-parse B:bq A:foo/whatever >expect && + test_cmp expect actual && + + test_must_fail git rev-parse HEAD:bq HEAD:foo/bq && + test_path_is_missing bq foo/bq foo/whatever + ) +' + +########################################################################### +# SECTION 4: Cases involving dirty changes +########################################################################### + +# Testcase 4a, Changed on A, subset of changes on B, locally modified +# Commit O: b_1 +# Commit A: b_2 +# Commit B: b_3 +# Working copy: b_4 +# Expected: b_2 for merge, b_4 in working copy + +test_expect_success '4a-setup: Change on A, change on B subset of A, dirty mods present' ' + test_create_repo 4a && + ( + cd 4a && + + test_write_lines 1 2 3 4 5 6 7 8 9 10 >b && + git add b && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + test_write_lines 1 2 3 4 5 5.5 6 7 8 9 10 10.5 >b && + git add b && + test_tick && + git commit -m "A" && + + git checkout B && + test_write_lines 1 2 3 4 5 5.5 6 7 8 9 10 >b && + git add b && + test_tick && + git commit -m "B" + ) +' + +# NOTE: For as long as we continue using unpack_trees() without index_only +# set to true, it will error out on a case like this claiming the the locally +# modified file would be overwritten by the merge. Getting this testcase +# correct requires doing the merge in-memory first, then realizing that no +# updates to the file are necessary, and thus that we can just leave the path +# alone. +test_expect_failure '4a-check: Change on A, change on B subset of A, dirty mods present' ' + test_when_finished "git -C 4a reset --hard" && + test_when_finished "git -C 4a clean -fd" && + ( + cd 4a && + + git checkout A^0 && + echo "File rewritten" >b && + + test-tool chmtime =31337 b && + test-tool chmtime -v +0 b >expected-mtime && + + GIT_MERGE_VERBOSITY=3 git merge -s recursive B^0 >out 2>err && + + test_i18ngrep "Skipped b" out && + test_must_be_empty err && + + test-tool chmtime -v +0 b >actual-mtime && + test_cmp expected-mtime actual-mtime && + + git ls-files -s >index_files && + test_line_count = 1 index_files && + + git rev-parse >actual :0:b && + git rev-parse >expect A:b && + test_cmp expect actual && + + git hash-object b >actual && + echo "File rewritten" | git hash-object --stdin >expect && + test_cmp expect actual + ) +' + +# Testcase 4b, Changed+renamed on A, subset of changes on B, locally modified +# Commit O: b_1 +# Commit A: c_2 +# Commit B: b_3 +# Working copy: c_4 +# Expected: c_2 + +test_expect_success '4b-setup: Rename+Mod(A)/Mod(B), change on B subset of A, dirty mods present' ' + test_create_repo 4b && + ( + cd 4b && + + test_write_lines 1 2 3 4 5 6 7 8 9 10 >b && + git add b && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + test_write_lines 1 2 3 4 5 5.5 6 7 8 9 10 10.5 >b && + git add b && + git mv b c && + test_tick && + git commit -m "A" && + + git checkout B && + test_write_lines 1 2 3 4 5 5.5 6 7 8 9 10 >b && + git add b && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '4b-check: Rename+Mod(A)/Mod(B), change on B subset of A, dirty mods present' ' + test_when_finished "git -C 4b reset --hard" && + test_when_finished "git -C 4b clean -fd" && + ( + cd 4b && + + git checkout A^0 && + echo "File rewritten" >c && + + test-tool chmtime =31337 c && + test-tool chmtime -v +0 c >expected-mtime && + + GIT_MERGE_VERBOSITY=3 git merge -s recursive B^0 >out 2>err && + + test_i18ngrep "Skipped c" out && + test_must_be_empty err && + + test-tool chmtime -v +0 c >actual-mtime && + test_cmp expected-mtime actual-mtime && + + git ls-files -s >index_files && + test_line_count = 1 index_files && + + git rev-parse >actual :0:c && + git rev-parse >expect A:c && + test_cmp expect actual && + + git hash-object c >actual && + echo "File rewritten" | git hash-object --stdin >expect && + test_cmp expect actual && + + test_must_fail git rev-parse HEAD:b && + test_path_is_missing b + ) +' + +test_done diff --git a/t/t6050-replace.sh b/t/t6050-replace.sh index c630aba657..d174bfed30 100755 --- a/t/t6050-replace.sh +++ b/t/t6050-replace.sh @@ -444,4 +444,32 @@ test_expect_success GPG '--graft on a commit with a mergetag' ' git replace -d $HASH10 ' +test_expect_success '--convert-graft-file' ' + git checkout -b with-graft-file && + test_commit root2 && + git reset --hard root2^ && + test_commit root1 && + test_commit after-root1 && + test_tick && + git merge -m merge-root2 root2 && + + : add and convert graft file && + printf "%s\n%s %s\n\n# comment\n%s\n" \ + $(git rev-parse HEAD^^ HEAD^ HEAD^^ HEAD^2) \ + >.git/info/grafts && + git replace --convert-graft-file && + test_path_is_missing .git/info/grafts && + + : verify that the history is now "grafted" && + git rev-list HEAD >out && + test_line_count = 4 out && + + : create invalid graft file and verify that it is not deleted && + test_when_finished "rm -f .git/info/grafts" && + echo $EMPTY_BLOB $EMPTY_TREE >.git/info/grafts && + test_must_fail git replace --convert-graft-file 2>err && + test_i18ngrep "$EMPTY_BLOB $EMPTY_TREE" err && + test_i18ngrep "$EMPTY_BLOB $EMPTY_TREE" .git/info/grafts +' + test_done diff --git a/t/t6500-gc.sh b/t/t6500-gc.sh index d5255dd576..818435f04e 100755 --- a/t/t6500-gc.sh +++ b/t/t6500-gc.sh @@ -5,6 +5,13 @@ test_description='basic git gc tests . ./test-lib.sh +test_expect_success 'setup' ' + # do not let the amount of physical memory affects gc + # behavior, make sure we always pack everything to one pack by + # default + git config gc.bigPackThreshold 2g +' + test_expect_success 'gc empty repository' ' git gc ' @@ -43,6 +50,31 @@ test_expect_success 'gc is not aborted due to a stale symref' ' ) ' +test_expect_success 'gc --keep-largest-pack' ' + test_create_repo keep-pack && + ( + cd keep-pack && + test_commit one && + test_commit two && + test_commit three && + git gc && + ( cd .git/objects/pack && ls *.pack ) >pack-list && + test_line_count = 1 pack-list && + BASE_PACK=.git/objects/pack/pack-*.pack && + test_commit four && + git repack -d && + test_commit five && + git repack -d && + ( cd .git/objects/pack && ls *.pack ) >pack-list && + test_line_count = 3 pack-list && + git gc --keep-largest-pack && + ( cd .git/objects/pack && ls *.pack ) >pack-list && + test_line_count = 2 pack-list && + test_path_is_file $BASE_PACK && + git fsck + ) +' + test_expect_success 'auto gc with too many loose objects does not attempt to create bitmaps' ' test_config gc.auto 3 && test_config gc.autodetach false && diff --git a/t/t7001-mv.sh b/t/t7001-mv.sh index e96cbdb105..cc3fd2baf2 100755 --- a/t/t7001-mv.sh +++ b/t/t7001-mv.sh @@ -495,7 +495,7 @@ test_expect_success 'moving a submodule in nested directories' ' test_cmp expect actual ' -test_expect_failure 'moving nested submodules' ' +test_expect_success 'moving nested submodules' ' git commit -am "cleanup commit" && mkdir sub_nested_nested && (cd sub_nested_nested && diff --git a/t/t7004-tag.sh b/t/t7004-tag.sh index 2aac77af70..d7b319e919 100755 --- a/t/t7004-tag.sh +++ b/t/t7004-tag.sh @@ -363,7 +363,7 @@ test_expect_success 'tag -l <pattern> -l <pattern> works, as our buggy documenta ' test_expect_success 'listing tags in column' ' - COLUMNS=40 git tag -l --column=row >actual && + COLUMNS=41 git tag -l --column=row >actual && cat >expected <<\EOF && a1 aa1 cba t210 t211 v0.2.1 v1.0 v1.0.1 v1.1.3 @@ -1056,7 +1056,18 @@ test_expect_success GPG \ git tag -s -F sigblanknonlfile blanknonlfile-signed-tag && get_tag_msg blanknonlfile-signed-tag >actual && test_cmp expect actual && - git tag -v signed-tag + git tag -v blanknonlfile-signed-tag +' + +test_expect_success GPG 'signed tag with embedded PGP message' ' + cat >msg <<-\EOF && + -----BEGIN PGP MESSAGE----- + + this is not a real PGP message + -----END PGP MESSAGE----- + EOF + git tag -s -F msg confusing-pgp-message && + git tag -v confusing-pgp-message ' # messages with commented lines for signed tags: diff --git a/t/t7005-editor.sh b/t/t7005-editor.sh index 29e5043b94..b2ca77b338 100755 --- a/t/t7005-editor.sh +++ b/t/t7005-editor.sh @@ -111,14 +111,8 @@ do ' done -if echo 'echo space > "$1"' > "e space.sh" -then - # FS supports spaces in filenames - test_set_prereq SPACES_IN_FILENAMES -fi - -test_expect_success SPACES_IN_FILENAMES 'editor with a space' ' - +test_expect_success 'editor with a space' ' + echo "echo space >\$1" >"e space.sh" && chmod a+x "e space.sh" && GIT_EDITOR="./e\ space.sh" git commit --amend && test space = "$(git show -s --pretty=format:%s)" @@ -126,7 +120,7 @@ test_expect_success SPACES_IN_FILENAMES 'editor with a space' ' ' unset GIT_EDITOR -test_expect_success SPACES_IN_FILENAMES 'core.editor with a space' ' +test_expect_success 'core.editor with a space' ' git config core.editor \"./e\ space.sh\" && git commit --amend && diff --git a/t/t7607-merge-overwrite.sh b/t/t7607-merge-overwrite.sh index 9c422bcd7c..dd8ab7ede1 100755 --- a/t/t7607-merge-overwrite.sh +++ b/t/t7607-merge-overwrite.sh @@ -92,7 +92,7 @@ test_expect_success 'will not overwrite removed file with staged changes' ' test_cmp important c1.c ' -test_expect_failure 'will not overwrite unstaged changes in renamed file' ' +test_expect_success 'will not overwrite unstaged changes in renamed file' ' git reset --hard c1 && git mv c1.c other.c && git commit -m rename && diff --git a/t/t7700-repack.sh b/t/t7700-repack.sh index 6061a04147..6162e2a8e6 100755 --- a/t/t7700-repack.sh +++ b/t/t7700-repack.sh @@ -4,6 +4,12 @@ test_description='git repack works correctly' . ./test-lib.sh +commit_and_pack() { + test_commit "$@" >/dev/null && + SHA1=$(git pack-objects --all --unpacked --incremental .git/objects/pack/pack </dev/null) && + echo pack-${SHA1}.pack +} + test_expect_success 'objects in packs marked .keep are not repacked' ' echo content1 > file1 && echo content2 > file2 && @@ -194,7 +200,26 @@ test_expect_success 'objects made unreachable by grafts only are kept' ' git reflog expire --expire=$test_tick --expire-unreachable=$test_tick --all && git repack -a -d && git cat-file -t $H1 - ' +' + +test_expect_success 'repack --keep-pack' ' + test_create_repo keep-pack && + ( + cd keep-pack && + P1=$(commit_and_pack 1) && + P2=$(commit_and_pack 2) && + P3=$(commit_and_pack 3) && + P4=$(commit_and_pack 4) && + ls .git/objects/pack/*.pack >old-counts && + test_line_count = 4 old-counts && + git repack -a -d --keep-pack $P1 --keep-pack $P4 && + ls .git/objects/pack/*.pack >new-counts && + grep -q $P1 new-counts && + grep -q $P4 new-counts && + test_line_count = 3 new-counts && + git fsck + ) +' test_done diff --git a/t/t9350-fast-export.sh b/t/t9350-fast-export.sh index d5679ffb87..6a392e87bc 100755 --- a/t/t9350-fast-export.sh +++ b/t/t9350-fast-export.sh @@ -538,4 +538,22 @@ test_expect_success 'when using -C, do not declare copy when source of copy is a test_cmp expected actual ' +test_expect_success 'merge commit gets exported with --import-marks' ' + test_create_repo merging && + ( + cd merging && + test_commit initial && + git checkout -b topic && + test_commit on-topic && + git checkout master && + test_commit on-master && + test_tick && + git merge --no-ff -m Yeah topic && + + echo ":1 $(git rev-parse HEAD^^)" >marks && + git fast-export --import-marks=marks master >out && + grep Yeah out + ) +' + test_done diff --git a/t/test-lib-functions.sh b/t/test-lib-functions.sh index 7d620bf2a9..2b2181dca0 100644 --- a/t/test-lib-functions.sh +++ b/t/test-lib-functions.sh @@ -145,12 +145,28 @@ test_pause () { "$SHELL_PATH" <&6 >&5 2>&7 } -# Wrap git in gdb. Adding this to a command can make it easier to -# understand what is going on in a failing test. +# Wrap git with a debugger. Adding this to a command can make it easier +# to understand what is going on in a failing test. # -# Example: "debug git checkout master". +# Examples: +# debug git checkout master +# debug --debugger=nemiver git $ARGS +# debug -d "valgrind --tool=memcheck --track-origins=yes" git $ARGS debug () { - GIT_TEST_GDB=1 "$@" <&6 >&5 2>&7 + case "$1" in + -d) + GIT_DEBUGGER="$2" && + shift 2 + ;; + --debugger=*) + GIT_DEBUGGER="${1#*=}" && + shift 1 + ;; + *) + GIT_DEBUGGER=1 + ;; + esac && + GIT_DEBUGGER="${GIT_DEBUGGER}" "$@" <&6 >&5 2>&7 } # Call test_commit with the arguments @@ -278,8 +294,20 @@ write_script () { # The single parameter is the prerequisite tag (a simple word, in all # capital letters by convention). +test_unset_prereq () { + ! test_have_prereq "$1" || + satisfied_prereq="${satisfied_prereq% $1 *} ${satisfied_prereq#* $1 }" +} + test_set_prereq () { - satisfied_prereq="$satisfied_prereq$1 " + case "$1" in + !*) + test_unset_prereq "${1#!}" + ;; + *) + satisfied_prereq="$satisfied_prereq$1 " + ;; + esac } satisfied_prereq=" " lazily_testable_prereq= lazily_tested_prereq= diff --git a/t/test-lib.sh b/t/test-lib.sh index ea2bbaaa7a..f3771ab195 100644 --- a/t/test-lib.sh +++ b/t/test-lib.sh @@ -1106,12 +1106,7 @@ test_lazy_prereq UTF8_NFD_TO_NFC ' auml=$(printf "\303\244") aumlcdiar=$(printf "\141\314\210") >"$auml" && - case "$(echo *)" in - "$aumlcdiar") - true ;; - *) - false ;; - esac + test -f "$aumlcdiar" ' test_lazy_prereq AUTOIDENT ' |