#!/bin/sh test_description="Test whether cache-tree is properly updated Tests whether various commands properly update and/or rewrite the cache-tree extension. " . ./test-lib.sh cmp_cache_tree () { test-tool dump-cache-tree | sed -e '/#(ref)/d' >actual && sed "s/$OID_REGEX/SHA/" <actual >filtered && test_cmp "$1" filtered } # We don't bother with actually checking the SHA1: # test-tool dump-cache-tree already verifies that all existing data is # correct. generate_expected_cache_tree_rec () { dir="$1${1:+/}" && parent="$2" && # ls-files might have foo/bar, foo/bar/baz, and foo/bar/quux # We want to count only foo because it's the only direct child subtrees=$(git ls-files|grep /|cut -d / -f 1|uniq) && subtree_count=$(echo "$subtrees"|awk -v c=0 '$1 != "" {++c} END {print c}') && entries=$(git ls-files|wc -l) && printf "SHA $dir (%d entries, %d subtrees)\n" "$entries" "$subtree_count" && for subtree in $subtrees do cd "$subtree" generate_expected_cache_tree_rec "$dir$subtree" "$dir" || return 1 cd .. done && dir=$parent } generate_expected_cache_tree () { ( generate_expected_cache_tree_rec ) } test_cache_tree () { generate_expected_cache_tree >expect && cmp_cache_tree expect } test_invalid_cache_tree () { printf "invalid %s ()\n" "" "$@" >expect && test-tool dump-cache-tree | sed -n -e "s/[0-9]* subtrees//" -e '/#(ref)/d' -e '/^invalid /p' >actual && test_cmp expect actual } test_no_cache_tree () { : >expect && cmp_cache_tree expect } test_expect_success 'initial commit has cache-tree' ' test_commit foo && test_cache_tree ' test_expect_success 'read-tree HEAD establishes cache-tree' ' git read-tree HEAD && test_cache_tree ' test_expect_success 'git-add invalidates cache-tree' ' test_when_finished "git reset --hard; git read-tree HEAD" && echo "I changed this file" >foo && git add foo && test_invalid_cache_tree ' test_expect_success 'git-add in subdir invalidates cache-tree' ' test_when_finished "git reset --hard; git read-tree HEAD" && mkdir dirx && echo "I changed this file" >dirx/foo && git add dirx/foo && test_invalid_cache_tree ' cat >before <<\EOF SHA (3 entries, 2 subtrees) SHA dir1/ (1 entries, 0 subtrees) SHA dir2/ (1 entries, 0 subtrees) EOF cat >expect <<\EOF invalid (2 subtrees) invalid dir1/ (0 subtrees) SHA dir2/ (1 entries, 0 subtrees) EOF test_expect_success 'git-add in subdir does not invalidate sibling cache-tree' ' git tag no-children && test_when_finished "git reset --hard no-children; git read-tree HEAD" && mkdir dir1 dir2 && test_commit dir1/a && test_commit dir2/b && echo "I changed this file" >dir1/a && cmp_cache_tree before && echo "I changed this file" >dir1/a && git add dir1/a && cmp_cache_tree expect ' test_expect_success 'update-index invalidates cache-tree' ' test_when_finished "git reset --hard; git read-tree HEAD" && echo "I changed this file" >foo && git update-index --add foo && test_invalid_cache_tree ' test_expect_success 'write-tree establishes cache-tree' ' test-tool scrap-cache-tree && git write-tree && test_cache_tree ' test_expect_success 'test-tool scrap-cache-tree works' ' git read-tree HEAD && test-tool scrap-cache-tree && test_no_cache_tree ' test_expect_success 'second commit has cache-tree' ' test_commit bar && test_cache_tree ' test_expect_success PERL 'commit --interactive gives cache-tree on partial commit' ' cat <<-\EOT >foo.c && int foo() { return 42; } int bar() { return 42; } EOT git add foo.c && test_invalid_cache_tree && git commit -m "add a file" && test_cache_tree && cat <<-\EOT >foo.c && int foo() { return 43; } int bar() { return 44; } EOT (echo p; echo 1; echo; echo s; echo n; echo y; echo q) | git commit --interactive -m foo && test_cache_tree ' test_expect_success 'commit in child dir has cache-tree' ' mkdir dir && >dir/child.t && git add dir/child.t && git commit -m dir/child.t && test_cache_tree ' test_expect_success 'reset --hard gives cache-tree' ' test-tool scrap-cache-tree && git reset --hard && test_cache_tree ' test_expect_success 'reset --hard without index gives cache-tree' ' rm -f .git/index && git reset --hard && test_cache_tree ' test_expect_success 'checkout gives cache-tree' ' git tag current && git checkout HEAD^ && test_cache_tree ' test_expect_success 'checkout -b gives cache-tree' ' git checkout current && git checkout -b prev HEAD^ && test_cache_tree ' test_expect_success 'checkout -B gives cache-tree' ' git checkout current && git checkout -B prev HEAD^ && test_cache_tree ' test_expect_success 'merge --ff-only maintains cache-tree' ' git checkout current && git checkout -b changes && test_commit llamas && test_commit pachyderm && test_cache_tree && git checkout current && test_cache_tree && git merge --ff-only changes && test_cache_tree ' test_expect_success 'merge maintains cache-tree' ' git checkout current && git checkout -b changes2 && test_commit alpacas && test_cache_tree && git checkout current && test_commit struthio && test_cache_tree && git merge changes2 && test_cache_tree ' test_expect_success 'partial commit gives cache-tree' ' git checkout -b partial no-children && test_commit one && test_commit two && echo "some change" >one.t && git add one.t && echo "some other change" >two.t && git commit two.t -m partial && test_cache_tree ' test_expect_success 'no phantom error when switching trees' ' mkdir newdir && >newdir/one && git add newdir/one && git checkout 2>errors && ! test -s errors ' test_expect_success 'switching trees does not invalidate shared index' ' git update-index --split-index && >split && git add split && test-tool dump-split-index .git/index | grep -v ^own >before && git commit -m "as-is" && test-tool dump-split-index .git/index | grep -v ^own >after && test_cmp before after ' test_done