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2017-04-14pathspec: honor `PATHSPEC_PREFIX_ORIGIN` with empty prefixLibravatar Patrick Steinhardt1-0/+22
Previous to commit 5d8f084a5 (pathspec: simpler logic to prefix original pathspec elements, 2017-01-04), we were always using the computed `match` variable to perform pathspec matching whenever `PATHSPEC_PREFIX_ORIGIN` is set. This is for example useful when passing the parsed pathspecs to other commands, as the computed `match` may contain a pathspec relative to the repository root. The commit changed this logic to only do so when we do have an actual prefix and when literal pathspecs are deactivated. But this change may actually break some commands which expect passed pathspecs to be relative to the repository root. One such case is `git add --patch`, which now fails when using relative paths from a subdirectory. For example if executing "git add -p ../foo.c" in a subdirectory, the `git-add--interactive` command will directly pass "../foo.c" to `git-ls-files`. As ls-files is executed at the repository's root, the command will notice that "../foo.c" is outside the repository and fail. Fix the issue by again using the computed `match` variable when `PATHSPEC_PREFIX_ORIGIN` is set and global literal pathspecs are deactivated. Note that in contrast to previous behavior, we will now always call `prefix_magic` regardless of whether a prefix is actually set. But this is the right thing to do: when the `match` variable has been resolved to the repository's root, it will be set to an empty string. When passing the empty string directly to other commands, it will result in a warning regarding deprecated empty pathspecs. By always adding the prefix magic, we will end up with at least the string ":(prefix:0)" and thus avoid the warning. Signed-off-by: Patrick Steinhardt <ps@pks.im> Acked-by: Brandon Williams <bmwill@google.com> Reviewed-by: Duy Nguyen <pclouds@gmail.com>
2017-03-17Merge branch 'jk/add-i-use-pathspecs'Libravatar Junio C Hamano1-0/+43
"git add -p <pathspec>" unnecessarily expanded the pathspec to a list of individual files that matches the pathspec by running "git ls-files <pathspec>", before feeding it to "git diff-index" to see which paths have changes, because historically the pathspec language supported by "diff-index" was weaker. These days they are equivalent and there is no reason to internally expand it. This helps both performance and avoids command line argument limit on some platforms. * jk/add-i-use-pathspecs: add--interactive: do not expand pathspecs with ls-files
2017-03-14add--interactive: do not expand pathspecs with ls-filesLibravatar Jeff King1-0/+43
When we want to get the list of modified files, we first expand any user-provided pathspecs with "ls-files", and then feed the resulting list of paths as arguments to "diff-index" and "diff-files". If your pathspec expands into a large number of paths, you may run into one of two problems: 1. The OS may complain about the size of the argument list, and refuse to run. For example: $ (ulimit -s 128 && git add -p drivers) Can't exec "git": Argument list too long at .../git-add--interactive line 177. Died at .../git-add--interactive line 177. That's on the linux.git repository, which has about 20K files in the "drivers" directory (none of them modified in this case). The "ulimit -s" trick is necessary to show the problem on Linux even for such a gigantic set of paths. Other operating systems have much smaller limits (e.g., a real-world case was seen with only 5K files on OS X). 2. Even when it does work, it's really slow. The pathspec code is not optimized for huge numbers of paths. Here's the same case without the ulimit: $ time git add -p drivers No changes. real 0m16.559s user 0m53.140s sys 0m0.220s We can improve this by skipping "ls-files" completely, and just feeding the original pathspecs to the diff commands. This solution was discussed in 2010: http://public-inbox.org/git/20100105041438.GB12574@coredump.intra.peff.net/ but at the time the diff code's pathspecs were more primitive than those used by ls-files (e.g., they did not support globs). Making the change would have caused a user-visible regression, so we didn't. Since then, the pathspec code has been unified, and the diff commands natively understand pathspecs like '*.c'. This patch implements that solution. That skips the argument-list limits, and the result runs much faster: $ time git add -p drivers No changes. real 0m0.149s user 0m0.116s sys 0m0.080s There are two new tests. The first just exercises the globbing behavior to confirm that we are not causing a regression there. The second checks the actual argument behavior using GIT_TRACE. We _could_ do it with the "ulimit -s" trick, as above. But that would mean the test could only run where "ulimit -s" works. And tests of that sort are expensive, because we have to come up with enough files to actually bust the limit (we can't just shrink the "128" down infinitely, since it is also the in-program stack size). Finally, two caveats and possibilities for future work: a. This fixes one argument-list expansion, but there may be others. In fact, it's very likely that if you run "git add -i" and select a large number of modified files that the script would try to feed them all to a single git command. In practice this is probably fine. The real issue here is that the argument list was growing with the _total_ number of files, not the number of modified or selected files. b. If the repository contains filenames with literal wildcard characters (e.g., "foo*"), the original code expanded them via "ls-files" and then fed those wildcard names to "diff-index", which would have treated them as wildcards. This was a bug, which is now fixed (though unless you really go through some contortions with ":(literal)", it's likely that your original pathspec would match whatever the accidentally-expanded wildcard would anyway). So this takes us one step closer to working correctly with files whose names contain wildcard characters, but it's likely that others remain (e.g., if "git add -i" feeds the selected paths to "git add"). Reported-by: Wincent Colaiuta <win@wincent.com> Reported-by: Mislav Marohnić <mislav.marohnic@gmail.com> Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-02add--interactive: fix missing file prompt for patch mode with "-i"Libravatar Jeff King1-0/+18
When invoked as "git add -i", each menu interactive menu option prompts the user to select a list of files. This includes the "patch" option, which gets the list before starting the hunk-selection loop. As "git add -p", it behaves differently, and jumps straight to the hunk selection loop. Since 0539d5e6d (i18n: add--interactive: mark patch prompt for translation, 2016-12-14), the "add -i" case mistakenly jumps to straight to the hunk-selection loop. Prior to that commit the distinction between the two cases was managed by the $patch_mode variable. That commit used $patch_mode for something else, and moved the old meaning to the "$cmd" variable. But it forgot to update the $patch_mode check inside patch_update_cmd() which controls the file-list behavior. The simplest fix would be to change that line to check $cmd. But while we're here, let's use a less obscure name for this flag: $patch_mode_only, a boolean which tells whether we are in full-interactive mode or only in patch-mode. Reported-by: Henrik Grubbström <grubba@grubba.org> Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-01-31color_parse_mem: allow empty color specLibravatar Jeff King1-0/+14
Prior to c2f41bf52 (color.c: fix color_parse_mem() with value_len == 0, 2017-01-19), the empty string was interpreted as a color "reset". This was an accidental outcome, and that commit turned it into an error. However, scripts may pass the empty string as a default value to "git config --get-color" to disable color when the value is not defined. The git-add--interactive script does this. As a result, the script is unusable since c2f41bf52 unless you have color.diff.plain defined (if it is defined, then we don't parse the empty default at all). Our test scripts didn't notice the recent breakage because they run without a terminal, and thus without color. They never hit this code path at all. And nobody noticed the original buggy "reset" behavior, because it was effectively a noop. Let's fix the code to have an empty color name produce an empty sequence of color codes. The tests need a few fixups: - we'll add a new test in t4026 to cover this case. But note that we need to tweak the color() helper. While we're there, let's factor out the literal ANSI ESC character. Otherwise it makes the diff quite hard to read. - we'll add a basic sanity-check in t4026 that "git add -p" works at all when color is enabled. That would have caught this bug, as well as any others that are specific to the color code paths. - 73c727d69 (log --graph: customize the graph lines with config log.graphColors, 2017-01-19) added a test to t4202 that checks some "invalid" graph color config. Since ",, blue" before yielded only "blue" as valid, and now yields "empty, empty, blue", we don't match the expected output. One way to fix this would be to change the expectation to the empty color strings. But that makes the test much less interesting, since we show only two graph lines, both of which would be colorless. Since the empty-string case is now covered by t4026, let's remove them entirely here. They're just in the way of the primary thing the test is supposed to be checking. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-04-16add -p: demonstrate failure when running 'edit' after a splitLibravatar Matthieu Moy1-0/+22
The test passes if one replaces the 'e' command with a 'y' command in the 'add -p' session. Reported-by: Tanky Woo <wtq1990@gmail.com> Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-04-16t3701-add-interactive: simplify codeLibravatar Matthieu Moy1-4/+1
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-11-26test: make FILEMODE a lazy prereqLibravatar Jonathan Nieder1-1/+0
This way, test authors don't need to remember to source lib-prereq-FILEMODE.sh before using the FILEMODE prereq to guard tests that rely on the executable bit being honored when checking out files. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-24add -i test: use skip_all instead of repeated PERL prerequisiteLibravatar Jonathan Nieder1-35/+41
It is too easy to forget to add the PERL prerequisite for new "add -i" tests, especially given that many people do not test with NO_PERL so the missing prereq is not always noticed quickly. The test had used the skip_all mechanism since 1b19ccd2 (2009-04-03) but switched to explicit PERL prereqs in f0459319 (2010-10-13) in hope of helping people see how many tests were skipped, perhaps to motivate them to tweak their platform or tests to improve test coverage. That didn't pan out much in practice, so let's move back to the simpler skip_all method. Reported-by: Kacper Kornet <draenog@pld-linux.org> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-12Correct common spelling mistakes in comments and testsLibravatar Stefano Lattarini1-1/+1
Most of these were found using Lucas De Marchi's codespell tool. Signed-off-by: Stefano Lattarini <stefano.lattarini@gmail.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Acked-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-05add--interactive: ignore unmerged entries in patch modeLibravatar Jeff King1-0/+26
When "add -p" sees an unmerged entry, it shows the combined diff and then immediately skips the hunk. This can be confusing in a variety of ways, depending on whether there are other changes to stage (in which case you get the superfluous combined diff output in between other hunks) or not (in which case you get the combined diff and the program exits immediately, rather than seeing "No changes"). The current behavior was not planned, and is just what the implementation happens to do. Instead, let's explicitly remove unmerged entries from our list of modified files, and print a warning that we are ignoring them. We can cheaply find which entries are unmerged by adding "--raw" output to the "diff-files --numstat" we already run. There is one non-obvious thing we must change when parsing this combined output. Before this patch, when we saw a numstat line for a file that did not have index changes, we would create a new record with 'unchanged' in the 'INDEX' field. Because "--raw" comes before "--numstat", we must move this special-case down to the raw-line case (and it is sufficient to move it rather than handle it in both places, since any file which has a --numstat will also have a --raw entry). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-11Merge branch 'jc/maint-add-p-overlapping-hunks'Libravatar Junio C Hamano1-0/+36
* jc/maint-add-p-overlapping-hunks: t3701: add-p-fix makes the last test to pass "add -p": work-around an old laziness that does not coalesce hunks add--interactive.perl: factor out repeated --recount option t3701: Editing a split hunk in an "add -p" session add -p: 'q' should really quit
2011-05-08t3701: add-p-fix makes the last test to passLibravatar Junio C Hamano1-1/+1
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-05t3701: fix here documentLibravatar Junio C Hamano1-3/+2
A broken here-document was not caught because end of file is taken by an implicit end of the here document (POSIX does not seem to say it is an error to lack the delimiter), and everything in the test just turned into a single "cat into a file". Noticed-by: Kacper Kornet <draenog@pld-linux.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-04-29t3701: Editing a split hunk in an "add -p" sessionLibravatar Junio C Hamano1-0/+36
Arnaud Lacombe reported that with the recent change to reject overlapping hunks fed to "git apply", the edit mode of an "add -p" session that lazily feeds overlapping hunks without coalescing adjacent ones claim that the patch does not apply. Expose the problem to be fixed. Cf. http://thread.gmane.org/gmane.comp.version-control.git/170685/focus=171000 Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-18t/t3701-add-interactive.sh: change from skip_all=* to prereq skipLibravatar Ævar Arnfjörð Bjarmason1-34/+70
Change this test to skip test with test prerequisites, and to do setup work in tests. This improves the skipped statistics on platforms where the test isn't run. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-18tests: Move FILEMODE prerequisite to lib-prereq-FILEMODE.shLibravatar Ævar Arnfjörð Bjarmason1-7/+1
Change the five tests that were all checking "git config --bool core.filemode" to use a new FILEMODE prerequisite in lib-prereq-FILEMODE.sh. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-06-25tests: Skip tests in a way that makes sense under TAPLibravatar Ævar Arnfjörð Bjarmason1-2/+2
SKIP messages are now part of the TAP plan. A TAP harness now knows why a particular test was skipped and can report that information. The non-TAP harness built into Git's test-lib did nothing special with these messages, and is unaffected by these changes. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-12-08Merge branch 'jk/maint-add-p-delete-fix' into maintLibravatar Junio C Hamano1-0/+20
* jk/maint-add-p-delete-fix: add-interactive: fix deletion of non-empty files
2009-12-07add-interactive: fix deletion of non-empty filesLibravatar Jeff King1-0/+20
Commit 24ab81a fixed the deletion of empty files, but broke deletion of non-empty files. The approach it took was to factor out the "deleted" line from the patch header into its own hunk, the same way we do for mode changes. However, unlike mode changes, we only showed the special "delete this file" hunk if there were no other hunks. Otherwise, the user would annoyingly be presented with _two_ hunks: one for deleting the file and one for deleting the content. This meant that in the non-empty case, we forgot about the deleted line entirely, and we submitted a bogus patch to git-apply (with "/dev/null" as the destination file, but not marked as a deletion). Instead, this patch combines the file deletion hunk and the content deletion hunk (if there is one) into a single deletion hunk which is either staged or not. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-11-16Merge branch 'jk/maint-add-p-empty' into maintLibravatar Junio C Hamano1-0/+17
* jk/maint-add-p-empty: add-interactive: handle deletion of empty files
2009-10-27add-interactive: handle deletion of empty filesLibravatar Jeff King1-0/+17
Usually we show deletion as a big hunk deleting all of the file's text. However, for files with no content, the diff shows just the 'deleted file mode ...' line. This patch cause "add -p" (and related commands) to recognize that line and explicitly ask about deleting the file. We only add the "stage this deletion" hunk for empty files, since other files will already ask about the big content deletion hunk. We could also change those files to simply display "stage this deletion", but showing the actual deleted content is probably what an interactive user wants. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-10git-add--interactive: never skip files included in indexLibravatar Pauli Virtanen1-0/+14
Make "git add -p" to not skip files that are in index even if they are excluded (by .gitignore etc.). This fixes the contradictory behavior that "git status" and "git commit -a" listed such files as modified, but "git add -p FILENAME" ignored them. Signed-off-by: Pauli Virtanen <pav@iki.fi> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-26Merge branch 'tr/maint-1.6.3-add-p-modeonly-fix' into maint-1.6.3Libravatar Junio C Hamano1-0/+11
* tr/maint-1.6.3-add-p-modeonly-fix: add -p: do not attempt to coalesce mode changes git add -p: demonstrate failure when staging both mode and hunk
2009-08-18Merge branch 'tr/maint-1.6.3-add-p-modeonly-fix'Libravatar Junio C Hamano1-0/+11
* tr/maint-1.6.3-add-p-modeonly-fix: add -p: do not attempt to coalesce mode changes git add -p: demonstrate failure when staging both mode and hunk
2009-08-15add -p: do not attempt to coalesce mode changesLibravatar Thomas Rast1-1/+1
In 0392513 (add-interactive: refactor mode hunk handling, 2009-04-16), we merged the interaction loops for mode changes and hunk staging. This was fine at the time, because 0beee4c (git-add--interactive: remove hunk coalescing, 2008-07-02) removed hunk coalescing. However, in 7a26e65 (Revert "git-add--interactive: remove hunk coalescing", 2009-05-16), we resurrected it. Since then, the code would attempt in vain to merge mode changes with diff hunks, corrupting both in the process. We add a check to the coalescing loop to ensure it only looks at diff hunks, thus skipping mode changes. Noticed-by: Kirill Smelkov <kirr@mns.spb.ru> Signed-off-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-15git add -p: demonstrate failure when staging both mode and hunkLibravatar Kirill Smelkov1-0/+11
When trying to stage changes to file which has also pending `chmod +x`, `git add -p` produces lots of 'Use of uninitialized value ...' warnings and fails to do the job: $ echo content >> file $ chmod +x file $ git add -p diff --git a/file b/file index e69de29..d95f3ad --- a/file +++ b/file old mode 100644 new mode 100755 Stage mode change [y,n,q,a,d,/,j,J,g,?]? y @@ -0,0 +1 @@ +content Stage this hunk [y,n,q,a,d,/,K,g,e,?]? y Use of uninitialized value $o_ofs in addition (+) at .../git-add--interactive line 776. Use of uninitialized value $ofs in numeric le (<=) at .../git-add--interactive line 806. Use of uninitialized value $o0_ofs in concatenation (.) or string at .../git-add--interactive line 830. Use of uninitialized value $n0_ofs in concatenation (.) or string at .../git-add--interactive line 830. Use of uninitialized value $o_ofs in addition (+) at .../git-add--interactive line 776. fatal: corrupt patch at line 5 diff --git a/file b/file index e69de29..d95f3ad --- a/file +++ b/file @@ -,0 + @@ +content Signed-off-by: Kirill Smelkov <kirr@mns.spb.ru> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-25t3701: ensure correctly set up repository after skipped testsLibravatar Johannes Sixt1-0/+6
There are two tests that are skipped if file modes are not obeyed by the file system. In this case, the subsequent test failed because the repository was in an unexpected state. This corrects it. Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-16Revert "git-add--interactive: remove hunk coalescing"Libravatar Junio C Hamano1-1/+1
This reverts commit 0beee4c6dec15292415e3d56075c16a76a22af54 but with a bit of twist, as we have added "edit hunk manually" hack and we cannot rely on the original line numbers of the hunks that were manually edited. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-16Splitting a hunk that adds a line at the top fails in "add -p"Libravatar Matt Graham1-0/+32
Splitting a hunk into two in add -p doesn't work for a diff that adds a new line at the top of the file with other add in the same hunk. Signed-off-by: Matthew Graham <mdg149@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-08tests: skip perl tests if NO_PERL is definedLibravatar Jeff King1-0/+5
These scripts all test git programs that are written in perl, and thus obviously won't work if NO_PERL is defined. We pass NO_PERL to the scripts from the building Makefile via the GIT-BUILD-OPTIONS file. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-22Skip tests that fail if the executable bit is not handled by the filesystemLibravatar Johannes Sixt1-4/+5
Signed-off-by: Johannes Sixt <j6t@kdbg.org>
2008-07-02git-add--interactive: manual hunk editing modeLibravatar Thomas Rast1-0/+67
Adds a new option 'e' to the 'add -p' command loop that lets you edit the current hunk in your favourite editor. If the resulting patch applies cleanly, the edited hunk will immediately be marked for staging. If it does not apply cleanly, you will be given an opportunity to edit again. If all lines of the hunk are removed, then the edit is aborted and the hunk is left unchanged. Applying the changed hunk(s) relies on Johannes Schindelin's new --recount option for git-apply. Note that the "real patch" test intentionally uses (echo e; echo n; echo d) | git add -p even though the 'n' and 'd' are superfluous at first sight. They serve to get out of the interaction loop if git add -p wrongly concludes the patch does not apply. Many thanks to Jeff King <peff@peff.net> for lots of help and suggestions. Signed-off-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-21Fix t3701 if core.filemode disabledLibravatar Alex Riesen1-0/+7
[jc: squashed in suggestions from Jeff King] Signed-off-by: Alex Riesen <raa.lkml@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-03-27add--interactive: allow user to choose mode updateLibravatar Jeff King1-1/+11
When using the 'p'atch command, instead of just throwing out any mode change, present it to the user in the same way that we show hunks. This way, the mode change can be staged independently from the changes to the contents. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-03-27add--interactive: ignore mode change in 'p'atch commandLibravatar Jeff King1-0/+9
When a path is examined in the patch subcommand, any mode changes in the file are given to use in the diff header by git-diff. If no hunks are staged, then we throw out that header and do not touch the path. But if _any_ hunks are staged, we use the header, and the mode is changed together with the contents. Since the 'p'atch command should just be dealing with hunks that are shown to the user, it makes sense to just ignore mode changes entirely. We do squirrel away the mode, though, since the next patch will allow users to select the mode update separately. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-03-13add test_cmp function for test scriptsLibravatar Jeff King1-2/+2
Many scripts compare actual and expected output using "diff -u". This is nicer than "cmp" because the output shows how the two differ. However, not all versions of diff understand -u, leading to unnecessary test failure. This adds a test_cmp function to the test scripts and switches all "diff -u" invocations to use it. The function uses the contents of "$GIT_TEST_CMP" to compare its arguments; the default is "diff -u". On systems with a less-capable diff, you can do: GIT_TEST_CMP=cmp make test Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-16add--interactive: handle initial commit betterLibravatar Jeff King1-0/+69
There were several points where we looked at the HEAD commit; for initial commits, this is meaningless. So instead we: - show staged status data as a diff against the empty tree instead of HEAD - show file diffs as creation events - use "git rm --cached" to revert instead of going back to the HEAD commit We magically reference the empty tree to implement this. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>