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* t/test-lib: introduce --chain-lint optionJeff King2015-03-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It's easy to miss an "&&"-chain in a test script, like: test_expect_success 'check something important' ' cmd1 && cmd2 cmd3 ' The test harness will notice if cmd3 fails, but a failure of cmd1 or cmd2 will go unnoticed, as their exit status is lost after cmd3 runs. The toy example above is easy to spot because the "cmds" are all the same length, but real code is much more complicated. It's also difficult to detect these situations by statically analyzing the shell code with regexps (like the check-non-portable-shell script does); there's too much context required to know whether a &&-chain is appropriate on a given line or not. This patch instead lets the shell check each test by sticking a command with a specific and unusual return code at the top of each test, like: (exit 117) && cmd1 && cmd2 cmd3 In a well-formed test, the non-zero exit from the first command prevents any of the rest from being run, and the test's exit code is 117. In a bad test (like the one above), the 117 is lost, and cmd3 is run. When we encounter a failure of this check, we abort the test script entirely. For one thing, we have no clue which subset of the commands in the test snippet were actually run. Running further tests would be pointless, because we're now in an unknown state. And two, this is not a "test failure" in the traditional sense. The test script is buggy, not the code it is testing. We should be able to fix these problems in the script once, and not have them come back later as a regression in git's code. After checking a test snippet for --chain-lint, we do still run the test itself. We could actually have a pure-lint mode which just checks each test, but there are a few reasons not to. One, because the tests are executing arbitrary code, which could impact the later environment (e.g., that could impact which set of tests we run at all). And two, because a pure-lint mode would still be expensive to run, because a significant amount of code runs outside of the test_expect_* blocks. Instead, this option is designed to be used as part of a normal test suite run, where it adds very little overhead. Turning on this option detects quite a few problems in existing tests, which will be fixed in subsequent patches. However, there are a number of places it cannot reach: - it cannot find a failure to break out of loops on error, like: cmd1 && for i in a b c; do cmd2 $i done && cmd3 which will not notice failures of "cmd2 a" or "cmd b" - it cannot find a missing &&-chain inside a block or subfunction, like: foo () { cmd1 cmd2 } foo && bar which will not notice a failure of cmd1. - it only checks tests that you run; every platform will have some tests skipped due to missing prequisites, so it's impossible to say from one run that the test suite is free of broken &&-chains. However, all tests get run by _somebody_, so eventually we will notice problems. - it does not operate on test_when_finished or prerequisite blocks. It could, but these tends to be much shorter and less of a problem, so I punted on them in this patch. This patch was inspired by an earlier patch by Jonathan Nieder: http://article.gmane.org/gmane.comp.version-control.git/235913 This implementation and all bugs are mine. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Post 2.3 cyce (batch #10)Junio C Hamano2015-03-17
| | | | | | Also declare that the next one will be called v2.4 ;-) Signed-off-by: Junio C Hamano <gitster@pobox.com>
* Merge branch 'mg/doc-status-color-slot'Junio C Hamano2015-03-17
|\ | | | | | | | | | | | | Documentation fixes. * mg/doc-status-color-slot: config,completion: add color.status.unmerged
| * config,completion: add color.status.unmergedMichael J Gruber2015-03-10
| | | | | | | | | | | | Reported-by: "Mladen B." <mladen074@gmail.com> Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | Merge branch 'mg/status-v-v'Junio C Hamano2015-03-17
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | "git status" now allows the "-v" to be given twice to show the differences that are left in the working tree not to be committed. * mg/status-v-v: commit/status: show the index-worktree diff with -v -v t7508: test git status -v t7508: .gitignore 'expect' and 'output' files
| * | commit/status: show the index-worktree diff with -v -vMichael J Gruber2015-03-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git commit and git status in long format show the diff between HEAD and the index when given -v. This allows previewing a commit to be made. They also list tracked files with unstaged changes, but without a diff. Introduce '-v -v' which shows the diff between the index and the worktree in addition to the HEAD index diff. This allows a review of unstaged changes which might be missing from the commit. In the case of '-v -v', additonal header lines Changes to be committed: and Changes not staged for commit: are inserted before the diffs, which are equal to those in the status part; the latter preceded by 50*"-" to make it stick out more. Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | t7508: test git status -vMichael J Gruber2015-03-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "status -v" had no test. Include one. This also requires changing the .gitignore subtests, which is a good thing: they include testing a .gitignore pattern now. Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | t7508: .gitignore 'expect' and 'output' filesJunio C Hamano2015-03-06
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | These files are used to observe the behaviour of the 'status' command and if there weren't any such observer, the expected output from 'status' wouldn't even mention them. Place them in .gitignore to unclutter the output expected by the tests. An added benefit is that future tests can add such files that are purely for use by the observer, i.e. the tests themselves, by naming them as expect-foo and/or output-bar. Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | Merge branch 'mg/sequencer-commit-messages-always-verbatim'Junio C Hamano2015-03-17
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | "git cherry-pick" used to clean-up the log message even when it is merely replaying an existing commit. It now replays the message verbatim unless you are editing the message of resulting commits. * mg/sequencer-commit-messages-always-verbatim: sequencer: preserve commit messages
| * | sequencer: preserve commit messagesMichael J Gruber2015-03-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sequencer calls "commit" with default options, which implies "--cleanup=default" unless the user specified something else in their config. This leads to cherry-picked commits getting a cleaned up commit message, which is usually not an intended side-effect. Make the sequencer use "--cleanup=verbatim" so that it preserves commit messages independent of the default, unless the user has set config for "commit" or the message is amended with -s or -x. Reported-by: Christoph Anton Mitterer <calestyo@scientia.net> Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | Merge branch 'sg/completion-remote'Junio C Hamano2015-03-17
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | Code simplification. * sg/completion-remote: completion: simplify __git_remotes() completion: add a test for __git_remotes() helper function
| * | | completion: simplify __git_remotes()SZEDER Gábor2015-03-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The __git_remotes() helper function lists the remotes from the config file by processing the output of a 'git config' query. A simple 'git remote' produces the exact same output, so run that instead. Remotes under '$GIT_DIR/remotes' are still listed by running 'ls -1', because 'git remote' unfortunately ignores them. Signed-off-by: SZEDER Gábor <szeder@ira.uka.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | completion: add a test for __git_remotes() helper functionSZEDER Gábor2015-03-06
| | |/ | |/| | | | | | | | | | | | | | | | | | | The test checks that both remotes under '$GIT_DIR/remotes' and remotes in the config file are listed. Signed-off-by: SZEDER Gábor <szeder@ira.uka.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | Merge branch 'es/rebase-i-count-todo'Junio C Hamano2015-03-17
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "git rebase -i" recently started to include the number of commits in the insn sheet to be processed, but on a platform that prepends leading whitespaces to "wc -l" output, the numbers are shown with extra whitespaces that aren't necessary. * es/rebase-i-count-todo: rebase-interactive: re-word "item count" comment rebase-interactive: suppress whitespace preceding item count
| * | | rebase-interactive: re-word "item count" commentEric Sunshine2015-03-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 97f05f43 (Show number of TODO items for interactive rebase, 2014-12-10) taught rebase-interactive to display an item count in the instruction list comments: # Rebase 46640c6..5568fd5 onto 46640c6 (4 TODO item(s)) # # Commands: # p, pick = use commit # ... However, with the exception of the --edit-todo option, "TODO" is a one-off term, never presented to the user by rebase-interactive in any other context. The item count is in fact the number of commands ("pick", "edit", etc.) remaining on the instruction sheet, and the comment immediately following it talks about "Commands". Consequently, replace "(# TODO item(s))" with the more accurate and meaningful "(# command(s))". Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | rebase-interactive: suppress whitespace preceding item countEric Sunshine2015-03-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 97f05f43 (Show number of TODO items for interactive rebase, 2014-12-10) taught rebase-interactive to compute an item count with 'wc -l' and display it in the instruction list comments: # Rebase 46640c6..5568fd5 onto 46640c6 (4 TODO item(s)) On Mac OS X, however, it renders as: # Rebase 46640c6..5568fd5 onto 46640c6 ( 4 TODO item(s)) since 'wc -l' indents its output with leading spaces. Fix this. Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | | Merge branch 'ak/git-done-help-cleanup'Junio C Hamano2015-03-17
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Code simplification. * ak/git-done-help-cleanup: git: make was_alias and done_help non-static
| * | | | git: make was_alias and done_help non-staticAlexander Kuleshov2015-03-06
| | |/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'was_alias' variable does not need to store it's value on each iteration in the loop; this variable gets assigned the result of run_argv() every time in the loop before being used. 'done_help' variable does not need to be static variable too if we move it out the loop. Signed-off-by: Alexander Kuleshov <kuleshovmail@gmail.com> Helped-by: Eric Sunshine <sunshine@sunshineco.com> Helped-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | | Merge branch 'rs/zip-text'Junio C Hamano2015-03-17
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "git archive" can now be told to set the 'text' attribute in the resulting zip archive. * rs/zip-text: archive-zip: mark text files in archives
| * | | | archive-zip: mark text files in archivesRené Scharfe2015-03-05
| | |_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Set the text flag for ZIP archive entries that look like text files so that unzip -a can be used to perform end-of-line conversions. Info-ZIP zip does the same. Detect binary files the same way as git diff and git grep do, namely by checking for the attribute "diff" and its negation "-diff", and if none is found by falling back to checking for the presence of NUL bytes in the first few bytes of the file contents. 7-Zip, Windows' built-in ZIP functionality and Info-ZIP unzip without the switch -a are not affected by the change and still extract text files without doing any end-of-line conversions. NB: The actual end-of-line style used in the archive entries doesn't matter to unzip -a, as it converts any CR, CRLF and LF to the line end characters appropriate for the platform it is running on. Suggested-by: Ulrike Fischer <luatex@nililand.de> Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | | Merge branch 'rs/deflate-init-cleanup'Junio C Hamano2015-03-17
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Code simplification. * rs/deflate-init-cleanup: zlib: initialize git_zstream in git_deflate_init{,_gzip,_raw}
| * | | | zlib: initialize git_zstream in git_deflate_init{,_gzip,_raw}René Scharfe2015-03-05
| |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clear the git_zstream variable at the start of git_deflate_init() etc. so that callers don't have to do that. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | | Sync with 2.3.3Junio C Hamano2015-03-13
|\ \ \ \
| * | | | Git 2.3.3v2.3.3Junio C Hamano2015-03-13
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | Merge branch 'mr/doc-clean-f-f' into maintJunio C Hamano2015-03-13
| |\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Documentation update. * mr/doc-clean-f-f: Documentation/git-clean.txt: document that -f may need to be given twice
| * \ \ \ \ Merge branch 'ak/t5516-typofix' into maintJunio C Hamano2015-03-13
| |\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | * ak/t5516-typofix: t5516: correct misspelled pushInsteadOf
| * \ \ \ \ \ Merge branch 'jc/diff-test-updates' into maintJunio C Hamano2015-03-13
| |\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Test clean-up. * jc/diff-test-updates: test_ln_s_add: refresh stat info of fake symbolic links t4008: modernise style t/diff-lib: check exact object names in compare_diff_raw tests: do not borrow from COPYING and README from the real source t4010: correct expected object names t9300: correct expected object names t4008: correct stale comments
| * \ \ \ \ \ \ Merge branch 'jk/diffcore-rename-duplicate' into maintJunio C Hamano2015-03-13
| |\ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A corrupt input to "git diff -M" can cause us to segfault. * jk/diffcore-rename-duplicate: diffcore-rename: avoid processing duplicate destinations diffcore-rename: split locate_rename_dst into two functions
| * \ \ \ \ \ \ \ Merge branch 'bw/kwset-use-unsigned' into maintJunio C Hamano2015-03-13
| |\ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The borrowed code in kwset API did not follow our usual convention to use "unsigned char" to store values that range from 0-255. * bw/kwset-use-unsigned: kwset: use unsigned char to store values with high-bit set
| * \ \ \ \ \ \ \ \ Merge branch 'nd/grep-exclude-standard-help-fix' into maintJunio C Hamano2015-03-13
| |\ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Description given by "grep -h" for its --exclude-standard option was phrased poorly. * nd/grep-exclude-standard-help-fix: grep: correct help string for --exclude-standard
| * \ \ \ \ \ \ \ \ \ Merge branch 'mg/doc-remote-tags-or-not' into maintJunio C Hamano2015-03-13
| |\ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "git remote add" mentioned "--tags" and "--no-tags" and was not clear that fetch from the remote in the future will use the default behaviour when neither is given to override it. * mg/doc-remote-tags-or-not: git-remote.txt: describe behavior without --tags and --no-tags
| * \ \ \ \ \ \ \ \ \ \ Merge branch 'mk/diff-shortstat-dirstat-fix' into maintJunio C Hamano2015-03-13
| |\ \ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "git diff --shortstat --dirstat=changes" showed a dirstat based on lines that was never asked by the end user in addition to the dirstat that the user asked for. * mk/diff-shortstat-dirstat-fix: diff --shortstat --dirstat: remove duplicate output
| * \ \ \ \ \ \ \ \ \ \ \ Merge branch 'ms/submodule-update-config-doc' into maintJunio C Hamano2015-03-13
| |\ \ \ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The interaction between "git submodule update" and the submodule.*.update configuration was not clearly documented. * ms/submodule-update-config-doc: submodule: improve documentation of update subcommand
| * \ \ \ \ \ \ \ \ \ \ \ \ Merge branch 'jc/apply-beyond-symlink' into maintJunio C Hamano2015-03-13
| |\ \ \ \ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "git apply" was not very careful about reading from, removing, updating and creating paths outside the working tree (under --index/--cached) or the current directory (when used as a replacement for GNU patch). * jc/apply-beyond-symlink: apply: do not touch a file beyond a symbolic link apply: do not read from beyond a symbolic link apply: do not read from the filesystem under --index apply: reject input that touches outside the working area
| * \ \ \ \ \ \ \ \ \ \ \ \ \ Merge branch 'rs/daemon-interpolate' into maintJunio C Hamano2015-03-13
| |\ \ \ \ \ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "git daemon" looked up the hostname even when "%CH" and "%IP" interpolations are not requested, which was unnecessary. * rs/daemon-interpolate: daemon: use callback to build interpolated path daemon: look up client-supplied hostname lazily
| * \ \ \ \ \ \ \ \ \ \ \ \ \ \ Merge branch 'jk/daemon-interpolate' into maintJunio C Hamano2015-03-13
| |\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The "interpolated-path" option of "git daemon" inserted any string client declared on the "host=" capability request without checking. Sanitize and limit %H and %CH to a saner and a valid DNS name. * jk/daemon-interpolate: daemon: sanitize incoming virtual hostname t5570: test git-daemon's --interpolated-path option git_connect: let user override virtual-host we send to daemon
* | | | | | | | | | | | | | | | | Post 2.3 cycle (batch #9)Junio C Hamano2015-03-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | | | | | | | | | | | | | | | Merge branch 'mh/expire-updateref-fixes'Junio C Hamano2015-03-10
|\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Various issues around "reflog expire", e.g. using --updateref when expiring a reflog for a symbolic reference, have been corrected and/or made saner. * mh/expire-updateref-fixes: reflog_expire(): never update a reference to null_sha1 reflog_expire(): ignore --updateref for symbolic references reflog: improve and update documentation struct ref_lock: delete the force_write member lock_ref_sha1_basic(): do not set force_write for missing references write_ref_sha1(): move write elision test to callers write_ref_sha1(): remove check for lock == NULL
| * | | | | | | | | | | | | | | | | reflog_expire(): never update a reference to null_sha1Michael Haggerty2015-03-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, if --updateref is specified and the very last reflog entry is expired or deleted, the reference's value is set to 0{40}. This is an invalid state of the repository, and breaks, for example, "git fsck" and "git for-each-ref". The only place we use --updateref in our own code is when dropping stash entries. In that code, the very next step is to check if the reflog has been made empty, and if so, delete the "refs/stash" reference entirely. Thus that code path ultimately leaves the repository in a valid state. But we don't want to the repository in an invalid state even temporarily, and we don't want to leave an invalid state if other callers of "git reflog expire|delete --updateref" don't think to do the extra cleanup step. So, if "git reflog expire|delete" leaves no more entries in the reflog, just leave the reference unchanged. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Reviewed-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | | | | | | | | | | | | | | reflog_expire(): ignore --updateref for symbolic referencesMichael Haggerty2015-03-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If we are expiring reflog entries for a symbolic reference, then how should --updateref be handled if the newest reflog entry is expired? Option 1: Update the referred-to reference. (This is what the current code does.) This doesn't make sense, because the referred-to reference has its own reflog, which hasn't been rewritten. Option 2: Update the symbolic reference itself (as in, REF_NODEREF). This would convert the symbolic reference into a non-symbolic reference (e.g., detaching HEAD), which is surely not what a user would expect. Option 3: Error out. This is plausible, but it would make the following usage impossible: git reflog expire ... --updateref --all Option 4: Ignore --updateref for symbolic references. We choose to implement option 4. Note: another problem in this code will be fixed in a moment. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Reviewed-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | | | | | | | | | | | | | | reflog: improve and update documentationMichael Haggerty2015-03-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Revamp the "git reflog" usage documentation in the manpage and the command help to match the current reality and improve its clarity: * Add documentation for some options that had been left out. * Group the subcommands and options more logically and move more common subcommands/options higher. * Improve some explanations. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Reviewed-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | | | | | | | | | | | | | | struct ref_lock: delete the force_write memberStefan Beller2015-03-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead, compute the value when it is needed. Signed-off-by: Stefan Beller <sbeller@google.com> Edited-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Reviewed-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | | | | | | | | | | | | | | lock_ref_sha1_basic(): do not set force_write for missing referencesMichael Haggerty2015-03-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If a reference is missing, its SHA-1 will be null_sha1, which can't possibly match a new value that ref_transaction_commit() is trying to update it to. So there is no need to set force_write in this scenario. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Reviewed-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | | | | | | | | | | | | | | write_ref_sha1(): move write elision test to callersMichael Haggerty2015-03-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | write_ref_sha1() previously skipped the write if the reference already had the desired value, unless lock->force_write was set. Instead, perform that test at the callers. Two of the callers (in rename_ref()) unconditionally set force_write just before calling write_ref_sha1(), so they don't need the extra check at all. Nor do they need to set force_write anymore. The last caller, in ref_transaction_commit(), still needs the test. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Reviewed-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | | | | | | | | | | | | | | write_ref_sha1(): remove check for lock == NULLMichael Haggerty2015-03-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | None of the callers pass NULL to this function, and there doesn't seem to be any usefulness to allowing them to do so. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Reviewed-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | | | | | | | | | | | | | | Merge branch 'sb/atomic-push' into mh/ref-trans-value-checkJunio C Hamano2015-02-09
| |\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * sb/atomic-push: Document receive.advertiseatomic t5543-atomic-push.sh: add basic tests for atomic pushes push.c: add an --atomic argument send-pack.c: add --atomic command line argument send-pack: rename ref_update_to_be_sent to check_to_send_update receive-pack.c: negotiate atomic push support receive-pack.c: add execute_commands_atomic function receive-pack.c: move transaction handling in a central place receive-pack.c: move iterating over all commands outside execute_commands receive-pack.c: die instead of error in case of possible future bug receive-pack.c: shorten the execute_commands loop over all commands
| * \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ Merge branch 'mh/reflog-expire' into mh/ref-trans-value-checkJunio C Hamano2015-02-09
| |\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ | | |_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * mh/reflog-expire: (24 commits) refs.c: let fprintf handle the formatting refs.c: don't expose the internal struct ref_lock in the header file lock_any_ref_for_update(): inline function refs.c: remove unlock_ref/close_ref/commit_ref from the refs api reflog_expire(): new function in the reference API expire_reflog(): treat the policy callback data as opaque Move newlog and last_kept_sha1 to "struct expire_reflog_cb" expire_reflog(): move rewrite to flags argument expire_reflog(): move verbose to flags argument expire_reflog(): pass flags through to expire_reflog_ent() struct expire_reflog_cb: a new callback data type Rename expire_reflog_cb to expire_reflog_policy_cb expire_reflog(): move updateref to flags argument expire_reflog(): move dry_run to flags argument expire_reflog(): add a "flags" argument expire_reflog(): extract two policy-related functions Extract function should_expire_reflog_ent() expire_reflog(): use a lock_file for rewriting the reflog file expire_reflog(): return early if the reference has no reflog expire_reflog(): rename "ref" parameter to "refname" ...
* | | | | | | | | | | | | | | | | | | Merge branch 'jk/diffcore-rename-duplicate'Junio C Hamano2015-03-10
|\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ | | |_|_|_|_|_|_|_|_|_|_|_|/ / / / / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A corrupt input to "git diff -M" can cause us to segfault. * jk/diffcore-rename-duplicate: diffcore-rename: avoid processing duplicate destinations diffcore-rename: split locate_rename_dst into two functions
| * | | | | | | | | | | | | | | | | | diffcore-rename: avoid processing duplicate destinationsJeff King2015-02-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The rename code cannot handle an input where we have duplicate destinations (i.e., more than one diff_filepair in the queue with the same string in its pair->two->path). We end up allocating only one slot in the rename_dst mapping. If we fill in the diff_filepair for that slot, when we re-queue the results, we may queue that filepair multiple times. When the diff is finally flushed, the filepair is processed and free()d multiple times, leading to heap corruption. This situation should only happen when a tree diff sees duplicates in one of the trees (see the added test for a detailed example). Rather than handle it, the sanest thing is just to turn off rename detection altogether for the diff. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | | | | | | | | | | | | | | | diffcore-rename: split locate_rename_dst into two functionsJeff King2015-02-27
| | |_|_|_|_|_|_|_|_|_|_|_|_|_|_|/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This function manages the mapping of destination pathnames to filepairs, and it handles both insertion and lookup. This makes the return value a bit confusing, as we return a newly created entry (even though no caller cares), and have no room to indicate to the caller that an entry already existed. Instead, let's break this up into two distinct functions, both backed by a common binary search. The binary search will use our normal "return the index if we found something, or negative index minus one to show where it would have gone" semantics. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>