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2020-10-20SubmittingPatches: clarify DCO is our --signoff ruleJunio C Hamano1-11/+14
The description on sign-off and DCO was written back in the days where there was only a choice between "use sign-off and it means the contributor agrees to the Linux-kernel style DCO" and "not using sign-off at all will make your patch unusable". These days, we are trying to clarify that the exact meaning of a sign-off varies project to project. Let's be more explicit when presenting what _our_ rules are. It is of secondary importance that it originally came from the kernel project, so move the description as a historical note at the end, while cautioning that what a sign-off means to us may be different from what it means to other projects contributors may have been used to. Signed-off-by: Junio C Hamano <gitster@pobox.com> Reviewed-by: Taylor Blau <me@ttaylorr.com> Reviewed-by: Bradley M. Kuhn <bkuhn@sfconservancy.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-20Documentation: clarify and expand description of --signoffBradley M. Kuhn1-6/+10
Building on past documentation improvements in b2c150d3aa (Expand documentation describing --signoff, 2016-01-05), further clarify that any project using Git may and often does set its own policy. However, leave intact reference to the Linux DCO, which Git also uses. It is reasonable for Git to advocate for its own Signed-off-by methodology in its documentation, as long as the documentation remains respectful that YMMV and other projects may well have very different contributor representations tied to Signed-off-by. Signed-off-by: Bradley M. Kuhn <bkuhn@sfconservancy.org> Signed-off-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Jeff King <peff@peff.net> Reviewed-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-20doc: preparatory clean-up of description on the sign-off optionJunio C Hamano3-18/+17
Almost identical text on the signed-off-by trailer appears in the documentation for "git commit" and "git merge" and its friends. Introduce a new signoff-option.txt file to be shared. A couple of things of note are: - The short-form "-s" is available only in "git commit", but not in commands that are friends of "git merge", as it is used as a short-hand for "--strategy". - The original lacks description on the negated "--no-signoff" form on "git commit" side, but it equally is applicable. It however was unclear in the original text that not adding a Signed-off-by trailer is the default, so rephrase to explain it as a way to countermand a --signoff option that appeared earlier on the same command line. This is in preparation to apply a further clarification on what exactly the Signed-off-by trailer means. Suggested-by: Philippe Blain <levraiphilippeblain@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com> Reviewed-by: Taylor Blau <me@ttaylorr.com> Reviewed-by: Bradley M. Kuhn <bkuhn@sfconservancy.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-19Git 2.29v2.29.0Junio C Hamano1-1/+1
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-18t2200,t9832: avoid using 'git' upstream in a pipeAmanda Shafack2-2/+4
Avoid placing `git` upstream in a pipe since doing so throws away its exit code, thus an unexpected failure may go unnoticed. Signed-off-by: Amanda Shafack <shafack.likhene@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-18test-lib: reduce verbosity of skipped testsElijah Newren1-1/+0
When using the --run flag to run just two or three tests from a test file which contains several dozen tests, having every skipped test print out dozens of lines of output for the test code for that skipped test (in addition to the TAP output line) adds up to hundreds or thousands of lines of irrelevant output that make it very hard to fish out the relevant results you were looking for. Simplify the output for skipped tests to remove this extra output, leaving only the TAP output line (i.e. the line reading "ok <number> # skip <test-description>", which already mentions that the test was "skip"ped). Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-18t6006, t6012: adjust tests to use 'setup' instead of synonymsElijah Newren2-2/+2
With the new ability to pass --run=setup to select which tests to run, it is more convenient if tests use the term "setup" instead of synonyms like 'prepare' or 'rebuild'. There are undoubtedly many other tests in our testsuite that could be changed over too, these are just a couple that I ran into. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-18test-lib: allow selecting tests by substring/glob with --runElijah Newren3-46/+73
Many of our test scripts have several "setup" tests. It's a lot easier to say ./t0050-filesystem.sh --run=setup,9 in order to run all the setup tests as well as test #9, than it is to track down what all the setup tests are and enter all their numbers in the list. Also, I often find myself wanting to run just one or a couple tests from the test file, but I don't know the numbering of any of the tests -- to get it I either have to first run the whole test file (or start counting by hand or figure out some other clever but non-obvious tricks). It's really convenient to be able to just look at the test description(s) and then run ./t6416-recursive-corner-cases.sh --run=symlink or ./t6402-merge-rename.sh --run='setup,unnecessary update' Add such an ability to test selection which relies on merely matching against the test description. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-18t7518: fix flaky grep invocationElijah Newren1-1/+1
t7518.1 added in commit 862e80a413 ("ident: handle NULL email when complaining of empty name", 2017-02-23), was trying to make sure that the test with an empty ident did not segfault and did not result in glibc quiety translating a NULL pointer into a name of "(null)". It did the latter by ensuring that a grep for "null" didn't appear in the output, but on one automatic CI run I observed the following output: fatal: empty ident name (for <runner@fv-az128-670.gcliasfzo2nullsdbrimjtbyhg.cx.internal.cloudapp.net>) not allowed Note that 'null' appears as a substring of the domain name, found within 'gcliasfzo2nullsdbrimjtbyhg'. Tighten the test by searching for "(null)" rather than "null". Signed-off-by: Elijah Newren <newren@gmail.com> Reviewed-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-18Merge tag 'l10n-2.29.0-rnd2' of git://github.com/git-l10n/git-poJunio C Hamano13-43679/+58411
l10n for Git 2.29.0 round 2 * tag 'l10n-2.29.0-rnd2' of git://github.com/git-l10n/git-po: l10n: zh_CN: for git v2.29.0 l10n round 1 and 2 l10n: de.po: Update German translation for Git 2.29.0 l10n: vi(5013t): Updated translation for v2.29.0 rd2 l10n: pt_PT: make on po/pt_PT.po l10n: Portuguese translation team has changed. Wohoo! l10n: bg.po: Updated Bulgarian translation (5013t) l10n: sv.po: Update Swedish translation (5013t0f0u) l10n: it.po: update the Italian translation l10n: tr: v2.29.0 round 2 l10n: zh_TW.po: v2.29.0 round 2 (2 untranslated) l10n: fr: v2.29.0 rnd 2 l10n: git.pot: v2.29.0 round 2 (1 new, 1 removed) l10n: fr: v2.29.0 rnd 1 l10n: it.po: update the Italian translation for Git 2.29.0 round 1 l10n: tr: v2.29.0 round 1 l10n: Update Catalan translation l10n: git.pot: v2.29.0 round 1 (124 new, 42 removed)
2020-10-18t3435: add tests for rebase -r GPG signingSamuel Čavoj1-0/+28
Add test cases of various combinations of the commit.gpgsign option and --gpg-sign, --no-gpg-sign flags with rebase -r with the default merge strategy. This excercises a different code-path from those with octopus merges or overridden merge strategy with rebase -s. Signed-off-by: Samuel Čavoj <samuel@cavoj.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-18sequencer: pass explicit --no-gpg-sign to mergeSamuel Čavoj2-0/+9
The merge subcommand launched for merges with non-default strategy would use its own default behaviour to decide how to sign commits, regardless of what opts->gpg_sign was set to. For example the --no-gpg-sign flag given to rebase explicitly would get ignored, if commit.gpgsign was set to true. Fix the issue and add a test case excercising this behaviour. Signed-off-by: Samuel Čavoj <samuel@cavoj.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-18sequencer: fix gpg option passed to merge subcommandSamuel Čavoj2-1/+22
When performing a rebase with --rebase-merges using either a custom strategy specified with -s or an octopus merge, and at the same time having gpgsign enabled (either rebase -S or config commit.gpgsign), the operation would fail on making the merge commit. Instead of "-S%s" with the key id substituted, only the bare key id would get passed to the underlying merge command, which tried to interpret it as a ref. Fix the issue and add test cases as suggested by Johannes Schindelin and Junio C Hamano. Signed-off-by: Samuel Čavoj <samuel@cavoj.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-18t0000: use test_path_is_file instead of "test -f"Caleb Tillman1-1/+1
Signed-off-by: Caleb Tillman <caleb.tillman@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-18Merge branch 'master' of github.com:Softcatala/git-poJiang Xin1-3572/+4352
* 'master' of github.com:Softcatala/git-po: l10n: Update Catalan translation
2020-10-18l10n: zh_CN: for git v2.29.0 l10n round 1 and 2Jiang Xin1-3432/+3788
Translate 124 new messages (5013t0f0u) for git 2.29.0. Reviewed-by: 依云 <lilydjwg@gmail.com> Reviewed-by: Fangyi Zhou <me@fangyi.io> Signed-off-by: Jiang Xin <worldhello.net@gmail.com>
2020-10-17Merge https://github.com/prati0100/git-guiJunio C Hamano3-49/+93
* https://github.com/prati0100/git-gui: git-gui: blame: prevent tool tips from sticking around after Command-Tab git-gui: improve dark mode support git-gui: fix mixed tabs and spaces; prefer tabs
2020-10-17Merge branch 'sh/blame-tooltip'Pratyush Yadav1-0/+1
Make sure `git gui blame` tooltips are destroyed once the window loses focus on MacOS. * sh/blame-tooltip: git-gui: blame: prevent tool tips from sticking around after Command-Tab
2020-10-17git-gui: blame: prevent tool tips from sticking around after Command-TabStefan Haller1-0/+1
On Mac, tooltips are not automatically removed when a window loses focus. Furthermore, mouse-move events are only dispatched to the active window, which means that if we Command-tab to another application while a tool tip is showing, the tool tip will stay there forever (in front of other applications). So we must hide it manually when we lose focus. Do this unconditionally here (i.e. without if {[is_MacOSX]}); it shouldn't hurt on other platforms, even though they don't seem to have this problem. Signed-off-by: Stefan Haller <stefan@haller-berlin.de> Signed-off-by: Pratyush Yadav <me@yadavpratyush.com>
2020-10-16MyFirstContribution: clarify asciidoc dependencyEmily Shaffer1-2/+3
Per IRC: [19:52] <lkmandy> With respect to the MyFirstContribution tutorial, I will like to suggest this - Under the section "Adding Documentation", just before the "make all doc" command, it will be really helpful to prompt a user to check if they have the asciidoc package installed, if they don't, the command should be provided or they can just be pointed to install it So, let's move the note about the dependency to before the build command blockquote. Signed-off-by: Emily Shaffer <emilyshaffer@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-16credential: load default configThomas Koutcher2-0/+29
Make `git credential fill` honour the core.askPass variable. Signed-off-by: Thomas Koutcher <thomas.koutcher@online.fr> [jk: added test] Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-16t6423: more involved rules for renaming directories into each otherElijah Newren2-26/+230
Testcases 12b and 12c were both slightly weird; they were marked as having a weird resolution, but with the note that even straightforward simple rules can give weird results when the input is bizarre. However, during optimization work for merge-ort, I discovered a significant speedup that is possible if we add one more fairly straightforward rule: we don't bother doing directory rename detection if there are no new files added to the directory on the other side of the history to be affected by the directory rename. This seems like an obvious and straightforward rule, but there was one funny corner case where directory rename detection could affect only existing files: the funny corner case where two directories are renamed into each other on opposite sides of history. In other words, it only results in a different output for testcases 12b and 12c. Since we already thought testcases 12b and 12c were weird anyway, and because the optimization often has a significant effect on common cases (but is entirely prevented if we can't change how 12b and 12c function), let's add the additional rule and tweak how 12b and 12c work. Split both testcases into two (one where we add no new files, and one where the side that doesn't rename a given directory will add files to it), and mark them with the new expectation. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-16t6423: update directory rename detection tests with new ruleElijah Newren2-24/+123
While investigating the issues highlighted by the testcase in the previous patch, I also found a shortcoming in the directory rename detection rules. Split testcase 6b into two to explain this issue and update directory-rename-detection.txt to remove one of the previous rules that I know believe to be detrimental. Also, update the wording around testcase 8e; while we are not modifying the results of that testcase, we were previously unsure of the appropriate resolution of that test and the new rule makes the previously chosen resolution for that testcase a bit more solid. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-16t6423: more involved directory rename testElijah Newren1-0/+195
Add a new testcase modelled on a real world repository example that served multiple purposes: * it uncovered a bug in the current directory rename detection implementation. * it is a good test of needing to do directory rename detection for a series of commits instead of just one (and uses rebase instead of just merge like all the other tests in this testfile). * it is an excellent stress test for some of the optimizations in my new merge-ort engine I can expand on the final item later when I have submitted more of merge-ort, but the bug is the main immediate concern. It arises as follows: * dir/subdir/ has several files * almost all files in dir/subdir/ are renamed to folder/subdir/ * one of the files in dir/subdir/ is renamed to folder/subdir/newsubdir/ * If the other side of history (that doesn't do the renames) adds a new file to dir/subdir/, where should it be placed after the merge? The most obvious two choices are: (1) leave the new file in dir/subdir/, don't make it follow the rename, and (2) move the new file to folder/subdir/, following the rename of most the files. However, there's a possible third choice here: (3) move the new file to folder/subdir/newsubdir/. The choice reinforce the fact that merge.directoryRenames=conflict is a good default, but when the merge machinery needs to stick it somewhere and notify the user of the possibility that they might want to place it elsewhere. Surprisingly, the current code would always choose (3), while the real world repository was clearly expecting (2) -- move the file along with where the herd of files was going, not with the special exception. The problem here is that for the majority of the file renames, dir/subdir/ -> folder/subdir/ is actually represented as dir/ -> folder/ This directory rename would have a big weight associated with it since most the files followed that rename. However, we always consult the most immediate directory first, and there is only one rename rule for it: dir/subdir/ -> folder/subdir/newsubdir/ Since this rule is the only one for mapping from dir/subdir/, it automatically wins and that directory rename was followed instead of the desired dir/subdir/ -> folder/subdir/. Unfortunately, the fix is a bit involved so for now just add the testcase documenting the issue. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-16directory-rename-detection.txt: update references to regression testsElijah Newren1-3/+4
The regression tests for directory rename detection were renamed from t6043 to t6423 in commit 919df31955 ("Collect merge-related tests to t64xx", 2020-08-10); update this file to match. Also, add a small clarification to nearby text while we're at it. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-16bisect--helper: retire `--bisect-autostart` subcommandPranit Bauva1-9/+0
The `--bisect-autostart` subcommand is no longer used from the git-bisect.sh shell script. Instead the function `bisect_autostart()` is directly called from the C implementation. Mentored-by: Lars Schneider <larsxschneider@gmail.com> Mentored-by: Christian Couder <chriscool@tuxfamily.org> Mentored-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Pranit Bauva <pranit.bauva@gmail.com> Signed-off-by: Tanushree Tumane <tanushreetumane@gmail.com> Signed-off-by: Miriam Rubio <mirucam@gmail.com> Reviewed-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-16bisect--helper: retire `--write-terms` subcommandPranit Bauva1-9/+1
The `--write-terms` subcommand is no longer used from the git-bisect.sh shell script. Instead the function `write_terms()` is called from the C implementation of `set_terms()` and `bisect_start()`. Mentored-by: Lars Schneider <larsxschneider@gmail.com> Mentored-by: Christian Couder <chriscool@tuxfamily.org> Mentored-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Pranit Bauva <pranit.bauva@gmail.com> Signed-off-by: Tanushree Tumane <tanushreetumane@gmail.com> Signed-off-by: Miriam Rubio <mirucam@gmail.com> Reviewed-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-16bisect--helper: retire `--check-expected-revs` subcommandPranit Bauva1-30/+0
The `--check-expected-revs` subcommand is no longer used from the git-bisect.sh shell script. Functions `check_expected_revs` and `is_expected_revs` are also deleted. Mentored-by: Lars Schneider <larsxschneider@gmail.com> Mentored-by: Christian Couder <chriscool@tuxfamily.org> Mentored-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Pranit Bauva <pranit.bauva@gmail.com> Signed-off-by: Tanushree Tumane <tanushreetumane@gmail.com> Signed-off-by: Miriam Rubio <mirucam@gmail.com> Reviewed-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-16bisect--helper: reimplement `bisect_state` & `bisect_head` shell functions in CPranit Bauva2-52/+89
Reimplement the `bisect_state()` shell functions in C and also add a subcommand `--bisect-state` to `git-bisect--helper` to call them from git-bisect.sh . Using `--bisect-state` subcommand is a temporary measure to port shell function to C so as to use the existing test suite. As more functions are ported, this subcommand will be retired and will be called by some other methods. `bisect_head()` is only called from `bisect_state()`, thus it is not required to introduce another subcommand. Note that the `eval` in the changed line of `git-bisect.sh` cannot be dropped: it is necessary because the `rev` and the `tail` variables may contain multiple, quoted arguments that need to be passed to `bisect--helper` (without the quotes, naturally). Mentored-by: Lars Schneider <larsxschneider@gmail.com> Mentored-by: Christian Couder <chriscool@tuxfamily.org> Mentored-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Pranit Bauva <pranit.bauva@gmail.com> Signed-off-by: Tanushree Tumane <tanushreetumane@gmail.com> Signed-off-by: Miriam Rubio <mirucam@gmail.com> Reviewed-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-16bisect--helper: retire `--next-all` subcommandPranit Bauva1-8/+1
The `--next-all` subcommand is no longer used from the git-bisect.sh shell script. Instead the function `bisect_next_all()` is called from the C implementation of `bisect_next()`. Mentored-by: Lars Schneider <larsxschneider@gmail.com> Mentored-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Pranit Bauva <pranit.bauva@gmail.com> Signed-off-by: Tanushree Tumane <tanushreetumane@gmail.com> Signed-off-by: Miriam Rubio <mirucam@gmail.com> Reviewed-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-16bisect--helper: retire `--bisect-clean-state` subcommandPranit Bauva1-8/+0
The `--bisect-clean-state` subcommand is no longer used from the git-bisect.sh shell script. Instead the function `bisect_clean_state()` is directly called from the C implementation. Mentored-by: Lars Schneider <larsxschneider@gmail.com> Mentored-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Pranit Bauva <pranit.bauva@gmail.com> Signed-off-by: Tanushree Tumane <tanushreetumane@gmail.com> Signed-off-by: Miriam Rubio <mirucam@gmail.com> Reviewed-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-16bisect--helper: finish porting `bisect_start()` to CPranit Bauva2-38/+29
Add the subcommand to `git bisect--helper` and call it from git-bisect.sh. With the conversion of `bisect_auto_next()` from shell to C in a previous commit, `bisect_start()` can now be fully ported to C. So let's complete the `--bisect-start` subcommand of `git bisect--helper` so that it fully implements `bisect_start()`, and let's use this subcommand in `git-bisect.sh` instead of `bisect_start()`. Note that the `eval` in the changed line of `git-bisect.sh` cannot be dropped: it is necessary because the `rev` and the `tail` variables may contain multiple, quoted arguments that need to be passed to `bisect--helper` (without the quotes, naturally). Mentored-by: Christian Couder <chriscool@tuxfamily.org> Mentored-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Pranit Bauva <pranit.bauva@gmail.com> Signed-off-by: Tanushree Tumane <tanushreetumane@gmail.com> Signed-off-by: Miriam Rubio <mirucam@gmail.com> Reviewed-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-16completion: fix zsh installation instructionsAlexey1-1/+2
- Fix wrong script in completion configuration. zsh wants bash completion path here, not path to itself. - Add `compinit` autoload command, since whole thing didn't work if it is not loaded. Signed-off-by: Alexey <lesha.ogonkov@gmail.com> Reviewed-by: Stefan Haller <lists@haller-berlin.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-16fast-import: remove duplicated option-parsing lineJeff King1-1/+0
Commit 1bdca81641 (fast-import: add options for rewriting submodules, 2020-02-22) accidentally added two lines parsing the option "rewrite-submodules-from". This didn't do anything in practice, because they're in an if/else chain and so the second one can never trigger. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-16hook: add sample template for push-to-checkoutAdam Spiers1-0/+78
The template is a more-or-less exact translation to shell of the C code for the default behaviour for git's push-to-checkout hook defined in the push_to_deploy() function in builtin/receive-pack.c, to serve as a convenient starting point for modification. It also contains relevant text extracted from the git-config(1) and githooks(5) man pages. Signed-off-by: Adam Spiers <git@adamspiers.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-16config.mak.dev: build with -fno-commonJeff King1-0/+1
It's an easy mistake to define a variable in a header with "int x;" when you really meant to only declare the variable as "extern int x;" instead. Clang and gcc will both allow this when building with "-fcommon"; they put these "tentative definitions" in a common block which the linker is able to resolve. This is the default in clang and was the default in gcc until gcc-10, since it helps some legacy code. However, we would prefer not to rely on this because: - using "extern" makes the intent more clear (so it's a style issue, but it's one the compiler can help us catch) - according to the gcc manpage, it may yield a speed and code size penalty So let's build explicitly with -fno-common when the DEVELOPER knob is set, which will let developers using clang and older versions of gcc notice these problems. I didn't bother making this conditional on a particular version of gcc. As far as I know, this option has been available forever in both gcc and clang, so old versions don't need to avoid it. And we already expect gcc and clang options throughout config.mak.dev, so it's unlikely anybody setting the DEVELOPER knob is using anything else. It's a noop on gcc-10, of course, but it's not worth trying to exclude it there. Note that there's nothing to fix in the code; we already don't have any issues here. But if you want to test the patch, you can add a bare "int x;" into cache.h, which will cause the link step to fail. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-16dir.c: fix comments to agree with argument nameAlex Vandiver1-3/+3
Signed-off-by: Alex Vandiver <alexmv@dropbox.com> Signed-off-by: Nipunn Koorapati <nipunn@dropbox.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-16maintenance: add troubleshooting guide to docsDerrick Stolee1-0/+44
The 'git maintenance run' subcommand takes a lock on the object database to prevent concurrent processes from competing for resources. This is an important safety measure to prevent possible repository corruption and data loss. This feature can lead to confusing behavior if a user is not aware of it. Add a TROUBLESHOOTING section to the 'git maintenance' builtin documentation that discusses these tradeoffs. The short version of this section is that Git will not corrupt your repository, but if the list of scheduled tasks takes longer than an hour then some scheduled tasks may be dropped due to this object database collision. For example, a long-running "daily" task at midnight might prevent an "hourly" task from running at 1AM. The opposite is also possible, but less likely as long as the "hourly" tasks are much faster than the "daily" and "weekly" tasks. Helped-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-16maintenance: use 'incremental' strategy by defaultDerrick Stolee3-4/+43
The 'git maintenance (register|start)' subcommands add the current repository to the global Git config so maintenance will operate on that repository. It does not specify what maintenance should occur or how often. To make it simple for users to start background maintenance with a recommended schedlue, update the 'maintenance.strategy' config option in both the 'register' and 'start' subcommands. This allows users to customize beyond the defaults using individual 'maintenance.<task>.schedule' options, but also the user can opt-out of this strategy using 'maintenance.strategy=none'. Helped-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-16maintenance: create maintenance.strategy configDerrick Stolee3-2/+90
To provide an on-ramp for users to use background maintenance without several 'git config' commands, create a 'maintenance.strategy' config option. Currently, the only important value is 'incremental' which assigns the following schedule: * gc: never * prefetch: hourly * commit-graph: hourly * loose-objects: daily * incremental-repack: daily These tasks are chosen to minimize disruptions to foreground Git commands and use few compute resources. The 'maintenance.strategy' is intended as a baseline that can be customzied further by manually assigning 'maintenance.<task>.enabled' and 'maintenance.<task>.schedule' config options, which will override any recommendation from 'maintenance.strategy'. This operates similarly to config options like 'feature.experimental' which operate as "meta" config options that change default config values. This presents a way forward for updating the 'incremental' strategy in the future or adding new strategies. For example, a potential strategy could be to include a 'full' strategy that runs the 'gc' task weekly and no other tasks by default. Helped-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-16usage: define a type for a reporting functionJeff King2-14/+16
The usage, die, warning, and error routines all work with a function pointer that takes the message to be reported. We usually just mention the function's full type inline. But this makes the use of these pointers hard to read, especially because C's syntax for returning a function pointer is so awful: void (*get_error_routine(void))(const char *err, va_list params); Unless you read it very carefully, this looks like a function pointer declaration. Let's instead use a single typedef to define a reporting function, which is the same for all four types. Note that this also removes the "extern" from these declarations to match the surrounding functions. They were missed in 554544276a (*.[ch]: remove extern from function declarations using spatch, 2019-04-29) presumably because of the unusual syntax. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-15Git 2.29-rc2v2.29.0-rc2Junio C Hamano1-1/+1
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-15fast-import: fix over-allocation of marks storageJeff King2-14/+68
Fast-import stores its marks in a trie-like structure made of mark_set structs. Each struct has a fixed size (1024). If our id number is too large to fit in the struct, then we allocate a new struct which shifts the id number by 10 bits. Our original struct becomes a child node of this new layer, and the new struct becomes the top level of the trie. This scheme was broken by ddddf8d7e2 (fast-import: permit reading multiple marks files, 2020-02-22). Before then, we had a top-level "marks" pointer, and the push-down worked by assigning the new top-level struct to "marks". But after that commit, insert_mark() takes a pointer to the mark_set, rather than using the global "marks". It continued to assign to the global "marks" variable during the push down, which was wrong for two reasons: - we added a call in option_rewrite_submodules() which uses a separate mark set; pushing down on "marks" is outright wrong here. We'd corrupt the "marks" set, and we'd fail to correctly store any submodule mappings with an id over 1024. - the other callers passed "marks", but the push-down was still wrong. In read_mark_file(), we take the pointer to the mark_set as a parameter. So even though insert_mark() was updating the global "marks", the local pointer we had in read_mark_file() was not updated. As a result, we'd add a new level when needed, but then the next call to insert_mark() wouldn't see it! It would then allocate a new layer, which would also not be seen, and so on. Lookups for the lost layers obviously wouldn't work, but before we even hit any lookup stage, we'd generally run out of memory and die. Our tests didn't notice either of these cases because they didn't have enough marks to trigger the push-down behavior. The new tests in t9304 cover both cases (and fail without this patch). We can solve the problem by having insert_mark() take a pointer-to-pointer of the top-level of the set. Then our push down can assign to it in a way that the caller actually sees. Note the subtle reordering in option_rewrite_submodules(). Our call to read_mark_file() may modify our top-level set pointer, so we have to wait until after it returns to assign its value into the string_list. Reported-by: Sergey Brester <serg.brester@sebres.de> Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-15l10n: de.po: Update German translation for Git 2.29.0Matthias Rüster1-3452/+3817
Reviewed-by: Ralf Thielow <ralf.thielow@gmail.com> Reviewed-by: Phillip Szelat <phillip.szelat@gmail.com> Signed-off-by: Matthias Rüster <matthias.ruester@gmail.com>
2020-10-14Merge branch 'pt-PT' of github.com:git-l10n-pt-PT/git-poJiang Xin2-5139/+14813
* 'pt-PT' of github.com:git-l10n-pt-PT/git-po: l10n: pt_PT: make on po/pt_PT.po l10n: Portuguese translation team has changed. Wohoo!
2020-10-13hashmap: add usage documentation explaining hashmap_free[_entries]()Elijah Newren1-2/+29
The existence of hashmap_free() and hashmap_free_entries() confused me, and the docs weren't clear enough. We are dealing with a map table, entries in that table, and possibly also things each of those entries point to. I had to consult other source code examples and the implementation. Add a brief note to clarify the differences. This will become even more important once we introduce a new hashmap_partial_clear() function which will add the question of whether the table itself has been freed. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-13l10n: vi(5013t): Updated translation for v2.29.0 rd2Tran Ngoc Quan1-3432/+3869
Signed-off-by: Tran Ngoc Quan <vnwildman@gmail.com>
2020-10-12ci: make the "skip-if-redundant" check more defensiveJohannes Schindelin1-27/+31
In 7d78d5fc1a9 (ci: skip GitHub workflow runs for already-tested commits/trees, 2020-10-08), we added a check that determines whether there is already a workflow run for the given commit (or at least tree), and if found, skips the current run. We just worked around an issue with this check where older runs might unexpectedly miss the `head_commit` attribute. Let's be even more defensive by catching all kinds of exceptions, logging them as warnings, and continue the run without skipping it (after all, if the check fails, we _want_ to continue with the run). This commit is best viewed with the diff option `-w` because it increases the indentation level of the GitHub Action script by two spaces, surrounding it by a `try ... catch` construct. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-12ci: work around old records of GitHub runsJohannes Schindelin1-1/+1
Apparently older GitHub runs at least _sometimes_ lack information about the `head_commit` (and therefore the `ci-config` check will fail with "TypeError: Cannot read property 'tree_id' of null") in the check added in 7d78d5fc1a9 (ci: skip GitHub workflow runs for already-tested commits/trees, 2020-10-08). Let's work around this by adding a defensive condition. Reported-by: Philippe Blain <levraiphilippeblain@gmail.com> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-12line-log: handle deref_tag() returning NULLRené Scharfe1-1/+1
Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>