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2022-04-13revisions API users: add straightforward release_revisions()Ævar Arnfjörð Bjarmason1-0/+2
Add a release_revisions() to various users of "struct rev_list" in those straightforward cases where we only need to add the release_revisions() call to the end of a block, and don't need to e.g. refactor anything to use a "goto cleanup" pattern. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-07hooks: fix an obscure TOCTOU "did we just run a hook?" raceÆvar Arnfjörð Bjarmason1-4/+7
Fix a Time-of-check to time-of-use (TOCTOU) race in code added in 680ee550d72 (commit: skip discarding the index if there is no pre-commit hook, 2017-08-14). This obscure race condition can occur if we e.g. ran the "pre-commit" hook and it modified the index, but hook_exists() returns false later on (e.g., because the hook itself went away, the directory became unreadable, etc.). Then we won't call discard_cache() when we should have. The race condition itself probably doesn't matter, and users would have been unlikely to run into it in practice. This problem has been noted on-list when 680ee550d72 was discussed[1], but had not been fixed. This change is mainly intended to improve the readability of the code involved, and to make reasoning about it more straightforward. It wasn't as obvious what we were trying to do here, but by having an "invoked_hook" it's clearer that e.g. our discard_cache() is happening because of the earlier hook execution. Let's also change this for the push-to-checkout hook. Now instead of checking if the hook exists and either doing a push to checkout or a push to deploy we'll always attempt a push to checkout. If the hook doesn't exist we'll fall back on push to deploy. The same behavior as before, without the TOCTOU race. See 0855331941b (receive-pack: support push-to-checkout hook, 2014-12-01) for the introduction of the previous behavior. This leaves uses of hook_exists() in two places that matter. The "reference-transaction" check in refs.c, see 67541597670 (refs: implement reference transaction hook, 2020-06-19), and the "prepare-commit-msg" hook, see 66618a50f9c (sequencer: run 'prepare-commit-msg' hook, 2018-01-24). In both of those cases we're saving ourselves CPU time by not preparing data for the hook that we'll then do nothing with if we don't have the hook. So using this "invoked_hook" pattern doesn't make sense in those cases. The "reference-transaction" and "prepare-commit-msg" hook also aren't racy. In those cases we'll skip the hook runs if we race with a new hook being added, whereas in the TOCTOU races being fixed here we were incorrectly skipping the required post-hook logic. 1. https://lore.kernel.org/git/20170810191613.kpmhzg4seyxy3cpq@sigill.intra.peff.net/ Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-07merge: don't run post-hook logic on --no-verifyÆvar Arnfjörð Bjarmason1-9/+12
Fix a minor bug introduced in bc40ce4de61 (merge: --no-verify to bypass pre-merge-commit hook, 2019-08-07), when that change made the --no-verify option bypass the "pre-merge-commit" hook it didn't update the corresponding find_hook() (later hook_exists()) condition. As can be seen in the preceding commit in 6098817fd7f (git-merge: honor pre-merge-commit hook, 2019-08-07) the two should go hand in hand. There's no point in invoking discard_cache() here if the hook couldn't have possibly updated the index. It's buggy that we use "hook_exist()" here, and as discussed in the subsequent commit it's subject to obscure race conditions that we're about to fix, but for now this change is a strict improvement that retains any caveats to do with the use of "hooks_exist()" as-is. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-02-18Merge branch 'pw/use-in-process-checkout-in-rebase'Junio C Hamano1-4/+2
Use an internal call to reset_head() helper function instead of spawning "git checkout" in "rebase", and update code paths that are involved in the change. * pw/use-in-process-checkout-in-rebase: rebase -m: don't fork git checkout rebase --apply: set ORIG_HEAD correctly rebase --apply: fix reflog reset_head(): take struct rebase_head_opts rebase: cleanup reset_head() calls create_autostash(): remove unneeded parameter reset_head(): make default_reflog_action optional reset_head(): factor out ref updates reset_head(): remove action parameter rebase --apply: don't run post-checkout hook if there is an error rebase: do not remove untracked files on checkout rebase: pass correct arguments to post-checkout hook t5403: refactor rebase post-checkout hook tests rebase: factor out checkout for up to date branch
2022-02-09Merge branch 'en/plug-leaks-in-merge'Junio C Hamano1-1/+5
Leakfix. * en/plug-leaks-in-merge: merge: fix memory leaks in cmd_merge() merge-ort: fix memory leak in merge_ort_internal()
2022-02-09Merge branch 'ab/config-based-hooks-2'Junio C Hamano1-1/+1
More "config-based hooks". * ab/config-based-hooks-2: run-command: remove old run_hook_{le,ve}() hook API receive-pack: convert push-to-checkout hook to hook.h read-cache: convert post-index-change to use hook.h commit: convert {pre-commit,prepare-commit-msg} hook to hook.h git-p4: use 'git hook' to run hooks send-email: use 'git hook run' for 'sendemail-validate' git hook run: add an --ignore-missing flag hooks: convert worktree 'post-checkout' hook to hook library hooks: convert non-worktree 'post-checkout' hook to hook library merge: convert post-merge to use hook.h am: convert applypatch-msg to use hook.h rebase: convert pre-rebase to use hook.h hook API: add a run_hooks_l() wrapper am: convert {pre,post}-applypatch to use hook.h gc: use hook library for pre-auto-gc hook hook API: add a run_hooks() wrapper hook: add 'run' subcommand
2022-01-26create_autostash(): remove unneeded parameterPhillip Wood1-4/+2
The default_reflog parameter of create_autostash() is passed to reset_head(). However as creating a stash does not involve updating any refs the parameter is not used by reset_head(). Removing the parameter from create_autostash() simplifies the callers. Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-01-21merge: fix memory leaks in cmd_merge()Elijah Newren1-1/+5
There were two commit_lists created in cmd_merge() that were only conditionally free()'d. Add a quick conditional call to free_commit_list() for each of them at the end of the function. Testing this commit against t6404 under valgrind shows that this patch fixes the following two leaks: 16 bytes in 1 blocks are definitely lost in loss record 16 of 126 at 0x484086F: malloc (vg_replace_malloc.c:380) by 0x69FFEB: do_xmalloc (wrapper.c:41) by 0x6A0073: xmalloc (wrapper.c:62) by 0x52A72D: commit_list_insert (commit.c:556) by 0x47FC93: reduce_parents (merge.c:1114) by 0x4801EE: collect_parents (merge.c:1214) by 0x480B56: cmd_merge (merge.c:1465) by 0x40686E: run_builtin (git.c:464) by 0x406C51: handle_builtin (git.c:716) by 0x406E96: run_argv (git.c:783) by 0x40730A: cmd_main (git.c:914) by 0x4E7DFA: main (common-main.c:56) 8 (16 direct, 32 indirect) bytes in 1 blocks are definitely lost in \ loss record 61 of 126 at 0x484086F: malloc (vg_replace_malloc.c:380) by 0x69FFEB: do_xmalloc (wrapper.c:41) by 0x6A0073: xmalloc (wrapper.c:62) by 0x52A72D: commit_list_insert (commit.c:556) by 0x52A8F2: commit_list_insert_by_date (commit.c:620) by 0x5270AC: get_merge_bases_many_0 (commit-reach.c:413) by 0x52716C: repo_get_merge_bases (commit-reach.c:438) by 0x480E5A: cmd_merge (merge.c:1520) by 0x40686E: run_builtin (git.c:464) by 0x406C51: handle_builtin (git.c:716) by 0x406E96: run_argv (git.c:783) by 0x40730A: cmd_main (git.c:914) There are still 3 leaks in chdir_notify_register() after this, but chdir_notify_register() has been brought up on the list before and folks were not a fan of fixing those, so I'm not touching them. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-01-10Merge branch 'ja/i18n-similar-messages'Junio C Hamano1-2/+2
Similar message templates have been consolidated so that translators need to work on fewer number of messages. * ja/i18n-similar-messages: i18n: turn even more messages into "cannot be used together" ones i18n: ref-filter: factorize "%(foo) atom used without %(bar) atom" i18n: factorize "--foo outside a repository" i18n: refactor "unrecognized %(foo) argument" strings i18n: factorize "no directory given for --foo" i18n: factorize "--foo requires --bar" and the like i18n: tag.c factorize i18n strings i18n: standardize "cannot open" and "cannot read" i18n: turn "options are incompatible" into "cannot be used together" i18n: refactor "%s, %s and %s are mutually exclusive" i18n: refactor "foo and bar are mutually exclusive"
2022-01-07merge: convert post-merge to use hook.hEmily Shaffer1-1/+1
Teach post-merge to use the hook.h library instead of the run-command.h library to run hooks. Signed-off-by: Emily Shaffer <emilyshaffer@google.com> Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Acked-by: Emily Shaffer <emilyshaffer@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-01-05Merge branch 'jc/merge-detached-head-name'Junio C Hamano1-0/+4
The default merge message prepared by "git merge" records the name of the current branch; the name can be overridden with a new option to allow users to pretend a merge is made on a different branch. * jc/merge-detached-head-name: merge: allow to pretend a merge is made into a different branch
2022-01-05i18n: turn "options are incompatible" into "cannot be used together"Jean-Noël Avila1-2/+2
Signed-off-by: Jean-Noël Avila <jn.avila@free.fr> Reviewed-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-12-20merge: allow to pretend a merge is made into a different branchJunio C Hamano1-0/+4
When a series of patches for a topic-B depends on having topic-A, the workflow to prepare the topic-B branch would look like this: $ git checkout -b topic-B main $ git merge --no-ff --no-edit topic-A $ git am <mbox-for-topic-B When topic-A gets updated, recreating the first merge and rebasing the rest of the topic-B, all on detached HEAD, is a useful technique. After updating topic-A with its new round of patches: $ git checkout topic-B $ prev=$(git rev-parse 'HEAD^{/^Merge branch .topic-A. into}') $ git checkout --detach $prev^1 $ git merge --no-ff --no-edit topic-A $ git rebase --onto HEAD $prev @{-1}^0 $ git checkout -B @{-1} This will (0) check out the current topic-B. (1) find the previous merge of topic-A into topic-B. (2) detach the HEAD to the parent of the previous merge. (3) merge the updated topic-A to it. (4) reapply the patches to rebuild the rest of topic-B. (5) update topic-B with the result. without contaminating the reflog of topic-B too much. topic-B@{1} is the "logically previous" state before topic-A got updated, for example. At (4), comparison (e.g. range-diff) between HEAD and @{-1} is a meaningful way to sanity check the result, and the same can be done at (5) by comparing topic-B and topic-B@{1}. But there is one glitch. The merge into the detached HEAD done in the step (3) above gives us "Merge branch 'topic-A' into HEAD", and does not say "into topic-B". Teach the "--into-name=<branch>" option to "git merge" and its underlying "git fmt-merge-message", to pretend as if we were merging into <branch>, no matter what branch we are actually merging into, when they prepare the merge message. The pretend name honors the usual "into <target>" suppression mechanism, which can be seen in the tests added here. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-11-25run-command API users: use strvec_pushl(), not argv constructionÆvar Arnfjörð Bjarmason1-2/+1
Change a pattern of hardcoding an "argv" array size, populating it and assigning to the "argv" member of "struct child_process" to instead use "strvec_pushl()" to add data to the "args" member. This implements the same behavior as before in fewer lines of code, and moves us further towards being able to remove the "argv" member in a subsequent commit. Since we've entirely removed the "argv" variable(s) we can be sure that no potential logic errors of the type discussed in a preceding commit are being introduced here, i.e. ones where the local "argv" was being modified after the assignment to "struct child_process"'s "argv". Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-25Merge branch 'ab/mark-leak-free-tests-more'Junio C Hamano1-0/+2
Bunch of tests are marked as "passing leak check". * ab/mark-leak-free-tests-more: merge: add missing strbuf_release() ls-files: add missing string_list_clear() ls-files: fix a trivial dir_clear() leak tests: fix test-oid-array leak, test in SANITIZE=leak tests: fix a memory leak in test-oidtree.c tests: fix a memory leak in test-parse-options.c tests: fix a memory leak in test-prio-queue.c
2021-10-13Merge branch 'ab/config-based-hooks-1'Junio C Hamano1-1/+2
Mostly preliminary clean-up in the hook API. * ab/config-based-hooks-1: hook-list.h: add a generated list of hooks, like config-list.h hook.c users: use "hook_exists()" instead of "find_hook()" hook.c: add a hook_exists() wrapper and use it in bugreport.c hook.[ch]: move find_hook() from run-command.c to hook.c Makefile: remove an out-of-date comment Makefile: don't perform "mv $@+ $@" dance for $(GENERATED_H) Makefile: stop hardcoding {command,config}-list.h Makefile: mark "check" target as .PHONY
2021-10-13Merge branch 'en/removing-untracked-fixes'Junio C Hamano1-0/+1
Various fixes in code paths that move untracked files away to make room. * en/removing-untracked-fixes: Documentation: call out commands that nuke untracked files/directories Comment important codepaths regarding nuking untracked files/dirs unpack-trees: avoid nuking untracked dir in way of locally deleted file unpack-trees: avoid nuking untracked dir in way of unmerged file Change unpack_trees' 'reset' flag into an enum Remove ignored files by default when they are in the way unpack-trees: make dir an internal-only struct unpack-trees: introduce preserve_ignored to unpack_trees_options read-tree, merge-recursive: overwrite ignored files by default checkout, read-tree: fix leak of unpack_trees_options.dir t2500: add various tests for nuking untracked files
2021-10-07merge: add missing strbuf_release()Ævar Arnfjörð Bjarmason1-0/+2
We strbuf_reset() this "struct strbuf" in a loop earlier, but never freed it. Plugs a memory leak that's been here ever since this code got introduced in 1c7b76be7d6 (Build in merge, 2008-07-07). This takes us from 68 failed tests in "t7600-merge.sh" to 59 under SANITIZE=leak, and makes "t7604-merge-custom-message.sh" pass! Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-27Remove ignored files by default when they are in the wayElijah Newren1-2/+1
Change several commands to remove ignored files by default when they are in the way. Since some commands (checkout, merge) take a --no-overwrite-ignore option to allow the user to configure this, and it may make sense to add that option to more commands (and in the case of merge, actually plumb that configuration option through to more of the backends than just the fast-forwarding special case), add little comments about where such flags would be used. Incidentally, this fixes a test failure in t7112. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-27unpack-trees: introduce preserve_ignored to unpack_trees_optionsElijah Newren1-0/+2
Currently, every caller of unpack_trees() that wants to ensure ignored files are overwritten by default needs to: * allocate unpack_trees_options.dir * flip the DIR_SHOW_IGNORED flag in unpack_trees_options.dir->flags * call setup_standard_excludes AND then after the call to unpack_trees() needs to * call dir_clear() * deallocate unpack_trees_options.dir That's a fair amount of boilerplate, and every caller uses identical code. Make this easier by instead introducing a new boolean value where the default value (0) does what we want so that new callers of unpack_trees() automatically get the appropriate behavior. And move all the handling of unpack_trees_options.dir into unpack_trees() itself. While preserve_ignored = 0 is the behavior we feel is the appropriate default, we defer fixing commands to use the appropriate default until a later commit. So, this commit introduces several locations where we manually set preserve_ignored=1. This makes it clear where code paths were previously preserving ignored files when they should not have been; a future commit will flip these to instead use a value of 0 to get the behavior we want. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-27hook.c users: use "hook_exists()" instead of "find_hook()"Ævar Arnfjörð Bjarmason1-1/+1
Use the new hook_exists() function instead of find_hook() where the latter was called in boolean contexts. This make subsequent changes in a series where we further refactor the hook API clearer, as we won't conflate wanting to get the path of the hook with checking for its existence. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-27hook.[ch]: move find_hook() from run-command.c to hook.cÆvar Arnfjörð Bjarmason1-0/+1
Move the find_hook() function from run-command.c to a new hook.c library. This change establishes a stub library that's pretty pointless right now, but will see much wider use with Emily Shaffer's upcoming "configuration-based hooks" series. Eventually all the hook related code will live in hook.[ch]. Let's start that process by moving the simple find_hook() function over as-is. Signed-off-by: Emily Shaffer <emilyshaffer@google.com> Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-20Merge branch 'js/run-command-close-packs'Junio C Hamano1-1/+0
The run-command API has been updated so that the callers can easily ask the file descriptors open for packfiles to be closed immediately before spawning commands that may trigger auto-gc. * js/run-command-close-packs: Close object store closer to spawning child processes run_auto_maintenance(): implicitly close the object store run-command: offer to close the object store before running run-command: prettify the `RUN_COMMAND_*` flags pull: release packs before fetching commit-graph: when closing the graph, also release the slab
2021-09-20Merge branch 'ds/mergies-with-sparse-index'Junio C Hamano1-0/+3
Various mergy operations have been prepared to work efficiently with the sparse index. * ds/mergies-with-sparse-index: sparse-index: integrate with cherry-pick and rebase sequencer: ensure full index if not ORT strategy t1092: add cherry-pick, rebase tests merge-ort: expand only for out-of-cone conflicts merge: make sparse-aware with ORT diff: ignore sparse paths in diffstat
2021-09-10Merge branch 'ab/retire-advice-config'Junio C Hamano1-2/+2
Code clean up to migrate callers from older advice_config[] based API to newer advice_if_enabled() and advice_enabled() API. * ab/retire-advice-config: advice: move advice.graftFileDeprecated squashing to commit.[ch] advice: remove use of global advice_add_embedded_repo advice: remove read uses of most global `advice_` variables advice: add enum variants for missing advice variables
2021-09-09merge: make sparse-aware with ORTDerrick Stolee1-0/+3
Allow 'git merge' to operate without expanding a sparse index, at least not immediately. The index still will be expanded in a few cases: 1. If the merge strategy is 'recursive', then we enable command_requires_full_index at the start of the merge_recursive() method. We expect sparse-index users to also have the 'ort' strategy enabled. 2. With the 'ort' strategy, if the merge results in a conflicted file, then we expand the index before updating the working tree. The loop that iterates over the worktree replaces index entries and tracks 'origintal_cache_nr' which can become completely wrong if the index expands in the middle of the operation. This safety valve is important before that loop starts. A later change will focus this to only expand if we indeed have a conflict outside of the sparse-checkout cone. 3. Other merge strategies are executed as a 'git merge-X' subcommand, and those strategies are currently protected with the 'command_requires_full_index' guard. Some test updates are required, including a mistaken 'git checkout -b' that did not specify the base branch, causing merges to be fast-forward merges. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Reviewed-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-09run_auto_maintenance(): implicitly close the object storeJohannes Schindelin1-1/+0
Before spawning the auto maintenance, we need to make sure that we release all open file handles to all the `.pack` files (and MIDX files and commit-graph files and...) so that the maintenance process has the freedom to delete those files. So far, we did this manually every time before calling `run_auto_maintenance()`. With the new `close_object_store` flag, we can do that implicitly in that function, which is more robust because future callers won't be able to forget to close the object store. Note: this changes behavior slightly, as we previously _always_ closed the object store, but now we only close the object store when actually running the auto maintenance. In practice, this should not matter (if anything, it might speed up operations where auto maintenance is disabled). Suggested-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-08Merge branch 'rs/xopen-reports-open-failures'Junio C Hamano1-3/+1
Error diagnostics improvement. * rs/xopen-reports-open-failures: use xopen() to handle fatal open(2) failures xopen: explicitly report creation failures
2021-08-30Merge branch 'cb/builtin-merge-format-string-fix'Junio C Hamano1-3/+5
Code clean-up. * cb/builtin-merge-format-string-fix: builtin/merge: avoid -Wformat-extra-args from ancient Xcode
2021-08-30Merge branch 'en/ort-becomes-the-default'Junio C Hamano1-2/+8
Use `ort` instead of `recursive` as the default merge strategy. * en/ort-becomes-the-default: Update docs for change of default merge backend Change default merge backend from recursive to ort
2021-08-30Merge branch 'en/merge-strategy-docs'Junio C Hamano1-1/+1
Documentation updates. * en/merge-strategy-docs: Update error message and code comment merge-strategies.txt: add coverage of the `ort` merge strategy git-rebase.txt: correct out-of-date and misleading text about renames merge-strategies.txt: fix simple capitalization error merge-strategies.txt: avoid giving special preference to patience algorithm merge-strategies.txt: do not imply using copy detection is desired merge-strategies.txt: update wording for the resolve strategy Documentation: edit awkward references to `git merge-recursive` directory-rename-detection.txt: small updates due to merge-ort optimizations git-rebase.txt: correct antiquated claims about --rebase-merges
2021-08-30Merge branch 'en/pull-conflicting-options'Junio C Hamano1-1/+1
"git pull" had various corner cases that were not well thought out around its --rebase backend, e.g. "git pull --ff-only" did not stop but went ahead and rebased when the history on other side is not a descendant of our history. The series tries to fix them up. * en/pull-conflicting-options: pull: fix handling of multiple heads pull: update docs & code for option compatibility with rebasing pull: abort by default when fast-forwarding is not possible pull: make --rebase and --no-rebase override pull.ff=only pull: since --ff-only overrides, handle it first pull: abort if --ff-only is given and fast-forwarding is impossible t7601: add tests of interactions with multiple merge heads and config t7601: test interaction of merge/rebase/fast-forward flags and options
2021-08-25use xopen() to handle fatal open(2) failuresRené Scharfe1-3/+1
Add and apply a semantic patch for using xopen() instead of calling open(2) and die() or die_errno() explicitly. This makes the error messages more consistent and shortens the code. Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-08-25advice: remove read uses of most global `advice_` variablesBen Boeckel1-2/+2
In c4a09cc9ccb (Merge branch 'hw/advise-ng', 2020-03-25), a new API for accessing advice variables was introduced and deprecated `advice_config` in favor of a new array, `advice_setting`. This patch ports all but two uses which read the status of the global `advice_` variables over to the new `advice_enabled` API. We'll deal with advice_add_embedded_repo and advice_graft_file_deprecated separately. Signed-off-by: Ben Boeckel <mathstuf@gmail.com> Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-08-09builtin/merge: avoid -Wformat-extra-args from ancient XcodeCarlo Marcelo Arenas Belón1-3/+5
d540b70c85 (merge: cleanup messages like commit, 2019-04-17) adds a way to change part of the helper text using a single call to strbuf_add_commented_addf but with two formats with varying number of parameters. this trigger a warning in old versions of Xcode (ex 8.0), so use instead two independent calls with a matching number of parameters Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-08-05Change default merge backend from recursive to ortElijah Newren1-2/+8
There are a few reasons to switch the default: * Correctness * Extensibility * Performance I'll provide some summaries about each. === Correctness === The original impetus for a new merge backend was to fix issues that were difficult to fix within recursive's design. The success with this goal is perhaps most easily demonstrated by running the following: $ git grep -2 KNOWN_FAILURE t/ | grep -A 4 GIT_TEST_MERGE_ALGORITHM $ git grep test_expect_merge_algorithm.failure.success t/ $ git grep test_expect_merge_algorithm.success.failure t/ In order, these greps show: * Seven sets of submodule tests (10 total tests) that fail with recursive but succeed with ort * 22 other tests that fail with recursive, but succeed with ort * 0 tests that pass with recursive, but fail with ort === Extensibility === Being able to perform merges without touching the working tree or index makes it possible to create new features that were difficult with the old backend: * Merging, cherry-picking, rebasing, reverting in bare repositories... or just on branches that aren't checked out. * `git diff AUTO_MERGE` -- ability to see what changes the user has made to resolve conflicts so far (see commit 5291828df8 ("merge-ort: write $GIT_DIR/AUTO_MERGE whenever we hit a conflict", 2021-03-20) * A --remerge-diff option for log/show, used to show diffs for merges that display the difference between what an automatic merge would have created and what was recorded in the merge. (This option will often result in an empty diff because many merges are clean, but for the non-clean ones it will show how conflicts were fixed including the removal of conflict markers, and also show additional changes made outside of conflict regions to e.g. fix semantic conflicts.) * A --remerge-diff-only option for log/show, similar to --remerge-diff but also showing how cherry-picks or reverts differed from what an automatic cherry-pick or revert would provide. The last three have been implemented already (though only one has been submitted upstream so far; the others were waiting for performance work to complete), and I still plan to implement the first one. === Performance === I'll quote from the summary of my final optimization for merge-ort (while fixing the testcase name from 'no-renames' to 'few-renames'): Timings Infinite merge- merge- Parallelism recursive recursive of rename merge-ort v2.30.0 current detection current ---------- --------- ----------- --------- few-renames: 18.912 s 18.030 s 11.699 s 198.3 ms mega-renames: 5964.031 s 361.281 s 203.886 s 661.8 ms just-one-mega: 149.583 s 11.009 s 7.553 s 264.6 ms Speedup factors Infinite merge- merge- Parallelism recursive recursive of rename v2.30.0 current detection merge-ort ---------- --------- ----------- --------- few-renames: 1 1.05 1.6 95 mega-renames: 1 16.5 29 9012 just-one-mega: 1 13.6 20 565 And, for partial clone users: Factor reduction in number of objects needed Infinite merge- merge- Parallelism recursive recursive of rename v2.30.0 current detection merge-ort ---------- --------- ----------- --------- mega-renames: 1 1 1 181.3 Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-08-05Update error message and code commentElijah Newren1-1/+1
There were two locations in the code that referred to 'merge-recursive' but which were also applicable to 'merge-ort'. Update them to more general wording. Acked-by: Derrick Stolee <dstolee@microsoft.com> Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-08-04Merge branch 'pb/merge-autostash-more'Junio C Hamano1-1/+3
The local changes stashed by "git merge --autostash" were lost when the merge failed in certain ways, which has been corrected. * pb/merge-autostash-more: merge: apply autostash if merge strategy fails merge: apply autostash if fast-forward fails Documentation: define 'MERGE_AUTOSTASH' merge: add missing word "strategy" to a message
2021-07-26builtin/merge: free found_ref when doneAndrzej Hunt1-1/+2
merge_name() calls dwim_ref(), which allocates a new string into found_ref. Therefore add a free() to avoid leaking found_ref. LSAN output from t0021: Direct leak of 16 byte(s) in 1 object(s) allocated from: #0 0x486804 in strdup ../projects/compiler-rt/lib/asan/asan_interceptors.cpp:452:3 #1 0xa8beb8 in xstrdup wrapper.c:29:14 #2 0x954054 in expand_ref refs.c:671:12 #3 0x953cb6 in repo_dwim_ref refs.c:644:22 #4 0x5d3759 in dwim_ref refs.h:162:9 #5 0x5d3759 in merge_name builtin/merge.c:517:6 #6 0x5d3759 in collect_parents builtin/merge.c:1214:5 #7 0x5cf60d in cmd_merge builtin/merge.c:1458:16 #8 0x4ce83e in run_builtin git.c:475:11 #9 0x4ccafe in handle_builtin git.c:729:3 #10 0x4cb01c in run_argv git.c:818:4 #11 0x4cb01c in cmd_main git.c:949:19 #12 0x6bdbfd in main common-main.c:52:11 #13 0x7f0430502349 in __libc_start_main (/lib64/libc.so.6+0x24349) SUMMARY: AddressSanitizer: 16 byte(s) leaked in 1 allocation(s). Signed-off-by: Andrzej Hunt <andrzej@ahunt.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-07-23merge: apply autostash if merge strategy failsPhilippe Blain1-0/+1
Since 'git merge' learned '--autostash' in a03b55530a (merge: teach --autostash option, 2020-04-07), 'cmd_merge', once it is determined that we have to create a merge commit, calls 'create_autostash' if '--autostash' is given. As explained in a03b55530a, and made more abvious by the tests added in that commit, the autostash is then applied if the merge succeeds, either directly or by committing (after conflict resolution or if '--no-commit' was given), or if the merge is aborted with 'git merge --abort'. In some other cases, like the user calling 'git reset --merge' or 'git merge --quit', the autostash is not applied, but saved in the stash list. However, there exists a scenario that creates an autostash but does not apply nor save it to the stash list: if the chosen merge strategy completely fails to handle the merge, i.e. 'try_merge_strategy' returns 2. Apply the autostash in that case also. An easy way to test that is to try to merge more than two commits but explicitely ask for the 'recursive' merge strategy. Signed-off-by: Philippe Blain <levraiphilippeblain@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-07-23merge: apply autostash if fast-forward failsPhilippe Blain1-0/+1
Since 'git merge' learned '--autostash' in a03b55530a (merge: teach --autostash option, 2020-04-07), 'cmd_merge', in the fast-forward case, calls 'create_autostash' before calling 'checkout_fast_forward' if '--autostash' is given. However, if 'checkout_fast_forward' fails, the autostash is not applied to the working tree, nor saved in the stash list, since the code simply calls 'goto done'. Be more helpful to the user by applying the autostash in that case. An easy way to test a failing fast-forward is when we are merging a branch that has a tracked file that conflicts with an untracked file in the working tree. Signed-off-by: Philippe Blain <levraiphilippeblain@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-07-23merge: add missing word "strategy" to a messagePhilippe Blain1-1/+1
The variable 'best_strategy' holds the name of the merge strategy that resulted in fewer conflicts, if several strategies were tried. When that's the case but the best strategy was not the first one tried, we inform the user which strategy was the "best" one before recreating the merge and leaving the conflicted files in the tree. This informational message is missing the word "strategy", so it shows something like: Using the recursive to prepare resolving by hand. Fix that. Signed-off-by: Philippe Blain <levraiphilippeblain@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-07-20pull: abort if --ff-only is given and fast-forwarding is impossibleAlex Henrie1-1/+1
The warning about pulling without specifying how to reconcile divergent branches says that after setting pull.rebase to true, --ff-only can still be passed on the command line to require a fast-forward. Make that actually work. Signed-off-by: Alex Henrie <alexhenrie24@gmail.com> [en: updated tests; note 3 fixes and 1 new failure] Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-06-10Merge branch 'ah/merge-usage-i18n-fix'Junio C Hamano1-2/+2
i18n update. * ah/merge-usage-i18n-fix: merge: don't translate literal commands
2021-05-16merge: don't translate literal commandsAlex Henrie1-2/+2
These strings have not been modified in any translation, nor should they be. Signed-off-by: Alex Henrie <alexhenrie24@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-05-03merge: fix swapped "up to date" message componentsJosh Soref1-5/+9
The rewrite of git-merge from shell to C in 1c7b76be7d (Build in merge, 2008-07-07) accidentally transformed the message: Already up-to-date. (nothing to squash) to: (nothing to squash)Already up-to-date. due to reversed printf() arguments. This problem has gone unnoticed despite being touched over the years by 7f87aff22c (Teach/Fix pull/fetch -q/-v options, 2008-11-15) and bacec47845 (i18n: git-merge basic messages, 2011-02-22), and tangentially by bef4830e88 (i18n: merge: mark messages for translation, 2016-06-17) and 7560f547e6 (treewide: correct several "up-to-date" to "up to date", 2017-08-23). Fix it by restoring the message to its intended order. While at it, help translators out by avoiding "sentence Lego". [es: rewrote commit message] Co-authored-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Josh Soref <jsoref@gmail.com> Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-05-03merge(s): apply consistent punctuation to "up to date" messagesEric Sunshine1-1/+1
Although the various "Already up to date" messages resulting from merge attempts share identical phrasing, they use a mix of punctuation ranging from "." to "!" and even "Yeeah!", which leads to extra work for translators. Ease the job of translators by settling upon "." as punctuation for all such messages. While at it, take advantage of printf_ln() to further ease the translation task so translators need not worry about line termination, and fix a case of missing line termination in the (unused) merge_ort_nonrecursive() function. Suggested-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-03-13use CALLOC_ARRAYRené Scharfe1-1/+1
Add and apply a semantic patch for converting code that open-codes CALLOC_ARRAY to use it instead. It shortens the code and infers the element size automatically. Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-02-05Merge branch 'so/log-diff-merge'Junio C Hamano1-1/+2
"git log" learned a new "--diff-merges=<how>" option. * so/log-diff-merge: (32 commits) t4013: add tests for --diff-merges=first-parent doc/git-show: include --diff-merges description doc/rev-list-options: document --first-parent changes merges format doc/diff-generate-patch: mention new --diff-merges option doc/git-log: describe new --diff-merges options diff-merges: add '--diff-merges=1' as synonym for 'first-parent' diff-merges: add old mnemonic counterparts to --diff-merges diff-merges: let new options enable diff without -p diff-merges: do not imply -p for new options diff-merges: implement new values for --diff-merges diff-merges: make -m/-c/--cc explicitly mutually exclusive diff-merges: refactor opt settings into separate functions diff-merges: get rid of now empty diff_merges_init_revs() diff-merges: group diff-merge flags next to each other inside 'rev_info' diff-merges: split 'ignore_merges' field diff-merges: fix -m to properly override -c/--cc t4013: add tests for -m failing to override -c/--cc t4013: support test_expect_failure through ':failure' magic diff-merges: revise revs->diff flag handling diff-merges: handle imply -p on -c/--cc logic for log.c ...
2020-12-21diff-merges: new function diff_merges_suppress()Sergey Organov1-1/+2
This function sets all the relevant flags to disabled state, so that no code that checks only one of them get it wrong. Then we call this new function everywhere where diff merges output suppression is needed. Signed-off-by: Sergey Organov <sorganov@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-18Merge branch 'en/merge-ort-api-null-impl'Junio C Hamano1-3/+23
Preparation for a new merge strategy. * en/merge-ort-api-null-impl: merge,rebase,revert: select ort or recursive by config or environment fast-rebase: demonstrate merge-ort's API via new test-tool command merge-ort-wrappers: new convience wrappers to mimic the old merge API merge-ort: barebones API of new merge strategy with empty implementation
2020-11-02merge,rebase,revert: select ort or recursive by config or environmentElijah Newren1-3/+23
Allow the testsuite to run where it treats requests for "recursive" or the default merge algorithm via consulting the environment variable GIT_TEST_MERGE_ALGORITHM which is expected to either be "recursive" (the old traditional algorithm) or "ort" (the new algorithm). Also, allow folks to pick the new algorithm via config setting. It turns out builtin/merge.c already had a way to allow users to specify a different default merge algorithm: pull.twohead. Rather odd configuration name (especially to be in the 'pull' namespace rather than 'merge') but it's there. Add that same configuration to rebase, cherry-pick, and revert. This required updating the various callsites that called merge_trees() or merge_recursive() to conditionally call the new API, so this serves as another demonstration of what the new API looks and feels like. There are almost certainly some callsites that have not yet been modified to work with the new merge algorithm, but this represents the ones that I have been testing with thus far. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-20Documentation: stylistically normalize references to Signed-off-by:Bradley M. Kuhn1-1/+1
Ted reported an old typo in the git-commit.txt and merge-options.txt. Namely, the phrase "Signed-off-by line" was used without either a definite nor indefinite article. Upon examination, it seems that the documentation (including items in Documentation/, but also option help strings) have been quite inconsistent on usage when referring to `Signed-off-by`. First, very few places used a definite or indefinite article with the phrase "Signed-off-by line", but that was the initial typo that led to this investigation. So, normalize using either an indefinite or definite article consistently. The original phrasing, in Commit 3f971fc425b (Documentation updates, 2005-08-14), is "Add Signed-off-by line". Commit 6f855371a53 (Add --signoff, --check, and long option-names. 2005-12-09) switched to using "Add `Signed-off-by:` line", but didn't normalize the former commit to match. Later commits seem to have cut and pasted from one or the other, which is likely how the usage became so inconsistent. Junio stated on the git mailing list in <xmqqy2k1dfoh.fsf@gitster.c.googlers.com> a preference to leave off the colon. Thus, prefer `Signed-off-by` (with backticks) for the documentation files and Signed-off-by (without backticks) for option help strings. Additionally, Junio argued that "trailer" is now the standard term to refer to `Signed-off-by`, saying that "becomes plenty clear that we are not talking about any random line in the log message". As such, prefer "trailer" over "line" anywhere the former word fits. However, leave alone those few places in documentation that use Signed-off-by to refer to the process (rather than the specific trailer), or in places where mail headers are generally discussed in comparison with Signed-off-by. Reported-by: "Theodore Y. Ts'o" <tytso@mit.edu> Signed-off-by: Bradley M. Kuhn <bkuhn@sfconservancy.org> Acked-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-25Merge branch 'ds/maintenance-part-1'Junio C Hamano1-1/+1
A "git gc"'s big brother has been introduced to take care of more repository maintenance tasks, not limited to the object database cleaning. * ds/maintenance-part-1: maintenance: add trace2 regions for task execution maintenance: add auto condition for commit-graph task maintenance: use pointers to check --auto maintenance: create maintenance.<task>.enabled config maintenance: take a lock on the objects directory maintenance: add --task option maintenance: add commit-graph task maintenance: initialize task array maintenance: replace run_auto_gc() maintenance: add --quiet option maintenance: create basic maintenance runner
2020-09-17maintenance: replace run_auto_gc()Derrick Stolee1-1/+1
The run_auto_gc() method is used in several places to trigger a check for repo maintenance after some Git commands, such as 'git commit' or 'git fetch'. To allow for extra customization of this maintenance activity, replace the 'git gc --auto [--quiet]' call with one to 'git maintenance run --auto [--quiet]'. As we extend the maintenance builtin with other steps, users will be able to select different maintenance activities. Rename run_auto_gc() to run_auto_maintenance() to be clearer what is happening on this call, and to expose all callers in the current diff. Rewrite the method to use a struct child_process to simplify the calls slightly. Since 'git fetch' already allows disabling the 'git gc --auto' subprocess, add an equivalent option with a different name to be more descriptive of the new behavior: '--[no-]maintenance'. Update the documentation to include these options at the same time. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-09Merge branch 'jt/interpret-branch-name-fallback'Junio C Hamano1-1/+1
"git status" has trouble showing where it came from by interpreting reflog entries that recordcertain events, e.g. "checkout @{u}", and gives a hard/fatal error. Even though it inherently is impossible to give a correct answer because the reflog entries lose some information (e.g. "@{u}" does not record what branch the user was on hence which branch 'the upstream' needs to be computed, and even if the record were available, the relationship between branches may have changed), at least hide the error to allow "status" show its output. * jt/interpret-branch-name-fallback: wt-status: tolerate dangling marks refs: move dwim_ref() to header file sha1-name: replace unsigned int with option struct
2020-09-02wt-status: tolerate dangling marksJonathan Tan1-1/+1
When a user checks out the upstream branch of HEAD, the upstream branch not being a local branch, and then runs "git status", like this: git clone $URL client cd client git checkout @{u} git status no status is printed, but instead an error message: fatal: HEAD does not point to a branch (This error message when running "git branch" persists even after checking out other things - it only stops after checking out a branch.) This is because "git status" reads the reflog when determining the "HEAD detached" message, and thus attempts to DWIM "@{u}", but that doesn't work because HEAD no longer points to a branch. Therefore, when calculating the status of a worktree, tolerate dangling marks. This is done by adding an additional parameter to dwim_ref() and repo_dwim_ref(). Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-08-21sequencer: treat CHERRY_PICK_HEAD as a pseudo refHan-Wen Nienhuys1-1/+1
Check for existence and delete CHERRY_PICK_HEAD through ref functions. This will help cherry-pick work with alternate ref storage backends. Signed-off-by: Han-Wen Nienhuys <hanwen@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-08-03merge: make merge.renormalize work for all uses of merge machineryElijah Newren1-4/+0
The 'merge' command is not the only one that does merges; other commands like checkout -m or rebase do as well. Unfortunately, the only area of the code that checked for the "merge.renormalize" config setting was in builtin/merge.c, meaning it could only affect merges performed by the "merge" command. Move the handling of this config setting to merge_recursive_config() so that other commands can benefit from it as well. Fixes a few tests in t6038. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-06-02Merge branch 'an/merge-single-strategy-optim'Junio C Hamano1-1/+1
Code optimization for a common case. * an/merge-single-strategy-optim: merge: optimization to skip evaluate_result for single strategy
2020-05-19merge: optimization to skip evaluate_result for single strategyAndrew Ng1-1/+1
For a merge with a single strategy, the result of evaluate_result() is effectively not used and therefore is not needed, so avoid altogether. On Windows, this optimization can halve the time required to perform a recursive merge of a single commit with the LLVM repo. Signed-off-by: Andrew Ng <andrew.ng@sony.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-05-13Merge branch 'jc/auto-gc-quiet'Junio C Hamano1-2/+1
Teach "am", "commit", "merge" and "rebase", when they are run with the "--quiet" option, to pass "--quiet" down to "gc --auto". * jc/auto-gc-quiet: auto-gc: pass --quiet down from am, commit, merge and rebase auto-gc: extract a reusable helper from "git fetch"
2020-05-07auto-gc: pass --quiet down from am, commit, merge and rebaseJunio C Hamano1-2/+1
These commands take the --quiet option for their own operation, but they forget to pass the option down when they invoke "git gc --auto" internally. Teach them to do so using the run_auto_gc() helper we added in the previous step. Signed-off-by: Junio C Hamano <gitster@pobox.com> Reviewed-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-05-05Merge branch 'dl/opt-callback-cleanup'Junio C Hamano1-2/+2
Code cleanup. * dl/opt-callback-cleanup: Use OPT_CALLBACK and OPT_CALLBACK_F
2020-05-01Merge branch 'ds/blame-on-bloom'Junio C Hamano1-2/+5
"git blame" learns to take advantage of the "changed-paths" Bloom filter stored in the commit-graph file. * ds/blame-on-bloom: test-bloom: check that we have expected arguments test-bloom: fix some whitespace issues blame: drop unused parameter from maybe_changed_path blame: use changed-path Bloom filters tests: write commit-graph with Bloom filters revision: complicated pathspecs disable filters
2020-04-29Merge branch 'dl/merge-autostash'Junio C Hamano1-0/+25
"git merge" learns the "--autostash" option. * dl/merge-autostash: (22 commits) pull: pass --autostash to merge t5520: make test_pull_autostash() accept expect_parent_num merge: teach --autostash option sequencer: implement apply_autostash_oid() sequencer: implement save_autostash() sequencer: unlink autostash in apply_autostash() sequencer: extract perform_autostash() from rebase rebase: generify create_autostash() rebase: extract create_autostash() reset: extract reset_head() from rebase rebase: generify reset_head() rebase: use apply_autostash() from sequencer.c sequencer: rename stash_sha1 to stash_oid sequencer: make apply_autostash() accept a path rebase: use read_oneliner() sequencer: make read_oneliner() extern sequencer: configurably warn on non-existent files sequencer: make read_oneliner() accept flags sequencer: make file exists check more efficient sequencer: stop leaking buf ...
2020-04-28Use OPT_CALLBACK and OPT_CALLBACK_FDenton Liu1-2/+2
In the codebase, there are many options which use OPTION_CALLBACK in a plain ol' struct definition. However, we have the OPT_CALLBACK and OPT_CALLBACK_F macros which are meant to abstract these plain struct definitions away. These macros are useful as they semantically signal to developers that these are just normal callback option with nothing fancy happening. Replace plain struct definitions of OPTION_CALLBACK with OPT_CALLBACK or OPT_CALLBACK_F where applicable. The heavy lifting was done using the following (disgusting) shell script: #!/bin/sh do_replacement () { tr '\n' '\r' | sed -e 's/{\s*OPTION_CALLBACK,\s*\([^,]*\),\([^,]*\),\([^,]*\),\([^,]*\),\([^,]*\),\s*0,\(\s*[^[:space:]}]*\)\s*}/OPT_CALLBACK(\1,\2,\3,\4,\5,\6)/g' | sed -e 's/{\s*OPTION_CALLBACK,\s*\([^,]*\),\([^,]*\),\([^,]*\),\([^,]*\),\([^,]*\),\([^,]*\),\(\s*[^[:space:]}]*\)\s*}/OPT_CALLBACK_F(\1,\2,\3,\4,\5,\6,\7)/g' | tr '\r' '\n' } for f in $(git ls-files \*.c) do do_replacement <"$f" >"$f.tmp" mv "$f.tmp" "$f" done The result was manually inspected and then reformatted to match the style of the surrounding code. Finally, using `git grep OPTION_CALLBACK \*.c`, leftover results which were not handled by the script were manually transformed. Signed-off-by: Denton Liu <liu.denton@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-04-16tests: write commit-graph with Bloom filtersDerrick Stolee1-2/+5
The GIT_TEST_COMMIT_GRAPH environment variable updates the commit- graph file whenever "git commit" is run, ensuring that we always have an updated commit-graph throughout the test suite. The GIT_TEST_COMMIT_GRAPH_CHANGED_PATHS environment variable was introduced to write the changed-path Bloom filters whenever "git commit-graph write" is run. However, the GIT_TEST_COMMIT_GRAPH trick doesn't launch a separate process and instead writes it directly. To expand the number of tests that have commits in the commit-graph file, add a helper method that computes the commit-graph and place that helper inside "git commit" and "git merge". In the helper method, check GIT_TEST_COMMIT_GRAPH_CHANGED_PATHS to ensure we are writing changed-path Bloom filters whenever possible. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-04-11merge: use skip_prefix to parse config keyMartin Ågren1-3/+5
Instead of using `starts_with()`, the magic number 7, `strlen()` and a fair number of additions to verify the three parts of the config key "branch.<branch>.mergeoptions", use `skip_prefix()` to jump through them more explicitly. We need to introduce a new variable for this (we certainly can't modify `k` just because we see "branch."!). With `skip_prefix()` we often use quite bland names like `p` or `str`. Let's do the same. If and when this function needs to do more prefix-skipping, we'll have a generic variable ready for this. Signed-off-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-04-10merge: teach --autostash optionDenton Liu1-0/+25
In rebase, one can pass the `--autostash` option to cause the worktree to be automatically stashed before continuing with the rebase. This option is missing in merge, however. Implement the `--autostash` option and corresponding `merge.autoStash` option in merge which stashes before merging and then pops after. This option is useful when a developer has some local changes on a topic branch but they realize that their work depends on another branch. Previously, they had to run something like git fetch ... git stash push git merge FETCH_HEAD git stash pop but now, that is reduced to git fetch ... git merge --autostash FETCH_HEAD When an autostash is generated, it is automatically reapplied to the worktree only in three explicit situations: 1. An incomplete merge is commit using `git commit`. 2. A merge completes successfully. 3. A merge is aborted using `git merge --abort`. In all other situations where the merge state is removed using remove_merge_branch_state() such as aborting a merge via `git reset --hard`, the autostash is saved into the stash reflog instead keeping the worktree clean. Helped-by: Phillip Wood <phillip.wood@dunelm.org.uk> Suggested-by: Alban Gruin <alban.gruin@gmail.com> Signed-off-by: Denton Liu <liu.denton@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-01-15gpg-interface: add minTrustLevel as a configuration optionHans Jerry Illikainen1-2/+7
Previously, signature verification for merge and pull operations checked if the key had a trust-level of either TRUST_NEVER or TRUST_UNDEFINED in verify_merge_signature(). If that was the case, the process die()d. The other code paths that did signature verification relied entirely on the return code from check_commit_signature(). And signatures made with a good key, irregardless of its trust level, was considered valid by check_commit_signature(). This difference in behavior might induce users to erroneously assume that the trust level of a key in their keyring is always considered by Git, even for operations where it is not (e.g. during a verify-commit or verify-tag). The way it worked was by gpg-interface.c storing the result from the key/signature status *and* the lowest-two trust levels in the `result` member of the signature_check structure (the last of these status lines that were encountered got written to `result`). These are documented in GPG under the subsection `General status codes` and `Key related`, respectively [1]. The GPG documentation says the following on the TRUST_ status codes [1]: """ These are several similar status codes: - TRUST_UNDEFINED <error_token> - TRUST_NEVER <error_token> - TRUST_MARGINAL [0 [<validation_model>]] - TRUST_FULLY [0 [<validation_model>]] - TRUST_ULTIMATE [0 [<validation_model>]] For good signatures one of these status lines are emitted to indicate the validity of the key used to create the signature. The error token values are currently only emitted by gpgsm. """ My interpretation is that the trust level is conceptionally different from the validity of the key and/or signature. That seems to also have been the assumption of the old code in check_signature() where a result of 'G' (as in GOODSIG) and 'U' (as in TRUST_NEVER or TRUST_UNDEFINED) were both considered a success. The two cases where a result of 'U' had special meaning were in verify_merge_signature() (where this caused git to die()) and in format_commit_one() (where it affected the output of the %G? format specifier). I think it makes sense to refactor the processing of TRUST_ status lines such that users can configure a minimum trust level that is enforced globally, rather than have individual parts of git (e.g. merge) do it themselves (except for a grace period with backward compatibility). I also think it makes sense to not store the trust level in the same struct member as the key/signature status. While the presence of a TRUST_ status code does imply that the signature is good (see the first paragraph in the included snippet above), as far as I can tell, the order of the status lines from GPG isn't well-defined; thus it would seem plausible that the trust level could be overwritten with the key/signature status if they were stored in the same member of the signature_check structure. This patch introduces a new configuration option: gpg.minTrustLevel. It consolidates trust-level verification to gpg-interface.c and adds a new `trust_level` member to the signature_check structure. Backward-compatibility is maintained by introducing a special case in verify_merge_signature() such that if no user-configurable gpg.minTrustLevel is set, then the old behavior of rejecting TRUST_UNDEFINED and TRUST_NEVER is enforced. If, on the other hand, gpg.minTrustLevel is set, then that value overrides the old behavior. Similarly, the %G? format specifier will continue show 'U' for signatures made with a key that has a trust level of TRUST_UNDEFINED or TRUST_NEVER, even though the 'U' character no longer exist in the `result` member of the signature_check structure. A new format specifier, %GT, is also introduced for users that want to show all possible trust levels for a signature. Another approach would have been to simply drop the trust-level requirement in verify_merge_signature(). This would also have made the behavior consistent with other parts of git that perform signature verification. However, requiring a minimum trust level for signing keys does seem to have a real-world use-case. For example, the build system used by the Qubes OS project currently parses the raw output from verify-tag in order to assert a minimum trust level for keys used to sign git tags [2]. [1] https://git.gnupg.org/cgi-bin/gitweb.cgi?p=gnupg.git;a=blob;f=doc/doc/DETAILS;h=bd00006e933ac56719b1edd2478ecd79273eae72;hb=refs/heads/master [2] https://github.com/QubesOS/qubes-builder/blob/9674c1991deef45b1a1b1c71fddfab14ba50dccf/scripts/verify-git-tag#L43 Signed-off-by: Hans Jerry Illikainen <hji@dyntopia.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-07Merge branch 'tg/stash-refresh-index'Junio C Hamano1-10/+3
"git stash" learned to write refreshed index back to disk. * tg/stash-refresh-index: stash: make sure to write refreshed cache merge: use refresh_and_write_cache factor out refresh_and_write_cache function
2019-09-20merge: use refresh_and_write_cacheThomas Gummerer1-10/+3
Use the 'refresh_and_write_cache()' convenience function introduced in the last commit, instead of refreshing and writing the index manually in merge.c Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-08-07merge: --no-verify to bypass pre-merge-commit hookMichael J Gruber1-2/+2
Analogous to commit, introduce a '--no-verify' option which bypasses the pre-merge-commit hook. The shorthand '-n' is taken by '--no-stat' already. [js: * reworded commit message to reflect current state of --no-stat flag and new hook name * fixed flag documentation to reflect new hook name * cleaned up trailing whitespace * squashed test changes from the original series' patch 4/4 * modified tests to follow pattern from this series' patch 1/4 * added a test case for --no-verify with non-executable hook * when testing that the merge hook did not run, make sure we actually have a merge to perform (by resetting the "side" branch to its original state). ] Improved-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Michael J Gruber <git@grubix.eu> Signed-off-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Josh Steadmon <steadmon@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-08-07git-merge: honor pre-merge-commit hookMichael J Gruber1-0/+12
git-merge does not honor the pre-commit hook when doing automatic merge commits, and for compatibility reasons this is going to stay. Introduce a pre-merge-commit hook which is called for an automatic merge commit just like pre-commit is called for a non-automatic merge commit (or any other commit). [js: * renamed hook from "pre-merge" to "pre-merge-commit" * only discard the index if the hook is actually present * expanded githooks documentation entry * clarified that hook should write messages to stderr * squashed test changes from the original series' patch 4/4 * modified tests to follow new pattern from this series' patch 1/4 * added a test case for non-executable merge hooks * added a test case for failed merges * when testing that the merge hook did not run, make sure we actually have a merge to perform (by resetting the "side" branch to its original state). * reworded commit message ] Improved-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Michael J Gruber <git@grubix.eu> Signed-off-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Josh Steadmon <steadmon@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-08-07merge: do no-verify like commitMichael J Gruber1-3/+3
f8b863598c ("builtin/merge: honor commit-msg hook for merges", 2017-09-07) introduced the no-verify flag to merge for bypassing the commit-msg hook, though in a different way from the implementation in commit.c. Change the implementation in merge.c to be the same as in commit.c so that both do the same in the same way. This also changes the output of "git merge --help" to be more clear that the hook return code is respected by default. [js: * reworded commit message * squashed documentation changes from original series' patch 3/4 ] Signed-off-by: Michael J Gruber <git@grubix.eu> Signed-off-by: Josh Steadmon <steadmon@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-07-19Merge branch 'ea/merge-code-cleanup'Junio C Hamano1-33/+20
A loop has been rewritten for conciseness and clarity. * ea/merge-code-cleanup: builtin/merge.c - cleanup of code in for-cycle that tests strategies
2019-07-09Merge branch 'ds/close-object-store'Junio C Hamano1-1/+1
The commit-graph file is now part of the "files that the runtime may keep open file descriptors on, all of which would need to be closed when done with the object store", and the file descriptor to an existing commit-graph file now is closed before "gc" finalizes a new instance to replace it. * ds/close-object-store: packfile: rename close_all_packs to close_object_store packfile: close commit-graph in close_all_packs commit-graph: use raw_object_store when closing
2019-07-09builtin/merge.c - cleanup of code in for-cycle that tests strategiesEdmundo Carmona Antoranz1-33/+20
The cmd_merge() function has a loop that tries different merge strategies in turn, and stops when a strategy gets a clean merge, while keeping the "best" conflicted merge so far. Make the loop easier to follow by moving the code around, ensuring that there is only one "break" in the loop where an automerge succeeds. Also group the actions that are performed after an automerge succeeds together to a single location, outside and after the loop. Signed-off-by: Edmundo Carmona Antoranz <eantoranz@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-06-17Merge branch 'vv/merge-squash-with-explicit-commit'Junio C Hamano1-1/+11
"git merge --squash" is designed to update the working tree and the index without creating the commit, and this cannot be countermanded by adding the "--commit" option; the command now refuses to work when both options are given. * vv/merge-squash-with-explicit-commit: merge: refuse --commit with --squash
2019-06-13Merge branch 'nd/merge-quit'Junio C Hamano1-12/+18
"git merge" learned "--quit" option that cleans up the in-progress merge while leaving the working tree and the index still in a mess. * nd/merge-quit: merge: add --quit merge: remove drop_save() in favor of remove_merge_branch_state()
2019-06-12packfile: rename close_all_packs to close_object_storeDerrick Stolee1-1/+1
The close_all_packs() method is now responsible for more than just pack-files. It also closes the commit-graph and the multi-pack-index. Rename the function to be more descriptive of its larger role. The name also fits because the input parameter is a raw_object_store. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-28merge: refuse --commit with --squashVishal Verma1-1/+11
Convert option_commit to tristate, representing the states of 'default/untouched', 'enabled-by-cli', 'disabled-by-cli'. With this in place, check whether option_commit was enabled by cli when squashing a merge. If so, error out, as this is not supported. Previously, when --squash was supplied, 'option_commit' was silently dropped. This could have been surprising to a user who tried to override the no-commit behavior of squash using --commit explicitly. Add a note to the --squash option for git-merge to clarify the incompatibility, and add a test case to t7600-merge.sh Cc: Junio C Hamano <gitster@pobox.com> Cc: Rafael Ascensão <rafa.almas@gmail.com> Cc: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Vishal Verma <vishal@stellar.sh> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-19merge: add --quitNguyễn Thái Ngọc Duy1-0/+13
This allows to cancel the current merge without resetting worktree/index, which is what --abort is for. Like other --quit(s), this is often used when you forgot that you're in the middle of a merge and already switched away, doing different things. By the time you've realized, you can't even continue the merge anymore. This also makes all in-progress commands, am, merge, rebase, revert and cherry-pick, take all three --abort, --continue and --quit (bisect has a different UI). Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-13merge: remove drop_save() in favor of remove_merge_branch_state()Nguyễn Thái Ngọc Duy1-12/+5
Both remove_branch_state() and drop_save() delete almost the same set of files about the current merge state. The only difference is MERGE_RR but it should also be cleaned up after a successful merge, which is what drop_save() is for. Make a new function that deletes all merge-related state files and use it instead of drop_save(). This function will also be used in the next patch that introduces --quit. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-04-19cherry-pick/revert: add scissors line on merge conflictDenton Liu1-8/+2
Fix a bug where the scissors line is placed after the Conflicts: section, in the case where a merge conflict occurs and commit.cleanup = scissors. Helped-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Denton Liu <liu.denton@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-04-18merge: add scissors line on merge conflictDenton Liu1-0/+14
This fixes a bug where the scissors line is placed after the Conflicts: section, in the case where a merge conflict occurs and commit.cleanup = scissors. Next, if commit.cleanup = scissors is specified, don't produce a scissors line in commit if one already exists in the MERGE_MSG file. Helped-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Denton Liu <liu.denton@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-04-18merge: cleanup messages like commitDenton Liu1-10/+31
This change allows git-merge messages to be cleaned up with the commit.cleanup configuration or --cleanup option, just like how git-commit does it. We also give git-pull the option of --cleanup so that it can also take advantage of this change. Finally, add testing to ensure that messages are properly cleaned up. Note that some newlines that were added to the commit message were removed so that if a file were read via -F, it would be copied faithfully. Helped-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Denton Liu <liu.denton@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-03-07Merge branch 'nd/diff-parseopt'Junio C Hamano1-3/+6
The diff machinery, one of the oldest parts of the system, which long predates the parse-options API, uses fairly long and complex handcrafted option parser. This is being rewritten to use the parse-options API. * nd/diff-parseopt: diff.c: convert --raw diff.c: convert -W|--[no-]function-context diff.c: convert -U|--unified diff.c: convert -u|-p|--patch diff.c: prepare to use parse_options() for parsing diff.h: avoid bit fields in struct diff_flags diff.h: keep forward struct declarations sorted parse-options: allow ll_callback with OPTION_CALLBACK parse-options: avoid magic return codes parse-options: stop abusing 'callback' for lowlevel callbacks parse-options: add OPT_BITOP() parse-options: disable option abbreviation with PARSE_OPT_KEEP_UNKNOWN parse-options: add one-shot mode parse-options.h: remove extern on function prototypes
2019-01-27parse-options: allow ll_callback with OPTION_CALLBACKNguyễn Thái Ngọc Duy1-0/+2
OPTION_CALLBACK is much simpler/safer to use, but parse_opt_cb does not allow access to parse_opt_ctx_t, which sometimes is useful (e.g. to obtain the prefix). Extending parse_opt_cb to take parse_opt_cb could result in a lot of changes. Instead let's just allow ll_callback to be used with OPTION_CALLBACK. The user will have to be careful, not to change anything in ctx, or return wrong result code. But that's the price for ll_callback. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-01-27parse-options: avoid magic return codesNguyễn Thái Ngọc Duy1-2/+3
Give names to these magic negative numbers. Make parse_opt_ll_cb return an enum to make clear it can actually control parse_options() with different return values (parse_opt_cb can too, but nobody needs it). Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-01-27parse-options: stop abusing 'callback' for lowlevel callbacksNguyễn Thái Ngọc Duy1-1/+1
Lowlevel callbacks have different function signatures. Add a new field in 'struct option' with the right type for lowlevel callbacks. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-01-24cache.h: flip NO_THE_INDEX_COMPATIBILITY_MACROS switchNguyễn Thái Ngọc Duy1-0/+1
By default, index compat macros are off from now on, because they could hide the_index dependency. Only those in builtin can use it. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-01-14merge-recursive.c: remove implicit dependency on the_indexNguyễn Thái Ngọc Duy1-1/+1
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-01-04Merge branch 'nd/the-index'Junio C Hamano1-1/+1
More codepaths become aware of working with in-core repository instance other than the default "the_repository". * nd/the-index: (22 commits) rebase-interactive.c: remove the_repository references rerere.c: remove the_repository references pack-*.c: remove the_repository references pack-check.c: remove the_repository references notes-cache.c: remove the_repository references line-log.c: remove the_repository reference diff-lib.c: remove the_repository references delta-islands.c: remove the_repository references cache-tree.c: remove the_repository references bundle.c: remove the_repository references branch.c: remove the_repository reference bisect.c: remove the_repository reference blame.c: remove implicit dependency the_repository sequencer.c: remove implicit dependency on the_repository sequencer.c: remove implicit dependency on the_index transport.c: remove implicit dependency on the_index notes-merge.c: remove implicit dependency the_repository notes-merge.c: remove implicit dependency on the_index list-objects.c: reduce the_repository references list-objects-filter.c: remove implicit dependency on the_index ...
2019-01-04Merge branch 'nd/i18n'Junio C Hamano1-2/+2
More _("i18n") markings. * nd/i18n: fsck: mark strings for translation fsck: reduce word legos to help i18n parse-options.c: mark more strings for translation parse-options.c: turn some die() to BUG() parse-options: replace opterror() with optname() repack: mark more strings for translation remote.c: mark messages for translation remote.c: turn some error() or die() to BUG() reflog: mark strings for translation read-cache.c: add missing colon separators read-cache.c: mark more strings for translation read-cache.c: turn die("internal error") to BUG() attr.c: mark more string for translation archive.c: mark more strings for translation alias.c: mark split_cmdline_strerror() strings for translation git.c: mark more strings for translation
2018-11-18Merge branch 'jk/verify-sig-merge-into-void'Junio C Hamano1-25/+5
"git merge" and "git pull" that merges into an unborn branch used to completely ignore "--verify-signatures", which has been corrected. * jk/verify-sig-merge-into-void: pull: handle --verify-signatures for unborn branch merge: handle --verify-signatures for unborn branch merge: extract verify_merge_signature() helper
2018-11-12sequencer.c: remove implicit dependency on the_indexNguyễn Thái Ngọc Duy1-1/+1
Since we're going to pass 'struct repository *' around most of the time instead of 'struct index_state *' because most sequencer.c operations need more than just the index, the_repository is replaced as well in the functions that now take 'struct repository *'. the_repository is still present in this file, but total clean up will be done later. It's not the main focus of this patch. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-11-12parse-options: replace opterror() with optname()Nguyễn Thái Ngọc Duy1-1/+1
Introduce optname() that does the early half of original opterror() to come up with the name of the option reported back to the user, and use it to kill opterror(). The callers of opterror() now directly call error() using the string returned by opterror() instead. There are a few issues with opterror() - it tries to assemble an English sentence from pieces. This is not great for translators because we give them pieces instead of a full sentence. - It's a wrapper around error() and needs some hack to let the compiler know it always returns -1. - Since it takes a string instead of printf format, one call site has to assemble the string manually before passing to it. Using error() directly solves the second and third problems. It kind helps the first problem as well because "%s does foo" does give a translator a full sentence in a sense and let them reorder if needed. But it has limitations, if the subject part has to change based on the rest of the sentence, that language is screwed. This is also why I try to avoid calling optname() when 'flags' is known in advance. Mark of these strings for translation as well while at there. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-11-12alias.c: mark split_cmdline_strerror() strings for translationNguyễn Thái Ngọc Duy1-1/+1
This function can be part of translated messages. To make sure we don't have a sentence with mixed languages, mark the strings for translation, but only use translated strings in places we know we will output translated strings. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-11-07merge: handle --verify-signatures for unborn branchJeff King1-0/+4
When git-merge sees that we are on an unborn branch (i.e., there is no HEAD), it follows a totally separate code path than the usual merge logic. This code path does not know about verify_signatures, and so we fail to notice bad or missing signatures. This has been broken since --verify-signatures was added in efed002249 (merge/pull: verify GPG signatures of commits being merged, 2013-03-31). In an ideal world, we'd unify the flow for this case with the regular merge logic, which would fix this bug and avoid introducing similar ones. But because the unborn case is so different, it would be a burden on the rest of the function to continually handle the missing HEAD. So let's just port the verification check to this special case. Reported-by: Felix Eckhofer <felix@eckhofer.com> Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-11-07merge: extract verify_merge_signature() helperJeff King1-25/+1
The logic to implement "merge --verify-signatures" is inline in cmd_merge(), but this site misses some cases. Let's extract the logic into a function so we can call it from more places. We'll move it to commit.[ch], since one of the callers (git-pull) is outside our source file. This function isn't all that general (after all, its main function is to exit the program) but it's not worth trying to fix that. The heavy lifting is done by check_commit_signature(), and our purpose here is just sharing the die() logic. We'll mark it with a comment to make that clear. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-11-06assert NOARG/NONEG behavior of parse-options callbacksJeff King1-0/+1
When we define a parse-options callback, the flags we put in the option struct must match what the callback expects. For example, a callback which does not handle the "unset" parameter should only be used with PARSE_OPT_NONEG. But since the callback and the option struct are not defined next to each other, it's easy to get this wrong (as earlier patches in this series show). Fortunately, the compiler can help us here: compiling with -Wunused-parameters can show us which callbacks ignore their "unset" parameters (and likewise, ones that ignore "arg" expect to be triggered with PARSE_OPT_NOARG). But after we've inspected a callback and determined that all of its callers use the right flags, what do we do next? We'd like to silence the compiler warning, but do so in a way that will catch any wrong calls in the future. We can do that by actually checking those variables and asserting that they match our expectations. Because this is such a common pattern, we'll introduce some helper macros. The resulting messages aren't as descriptive as we could make them, but the file/line information from BUG() is enough to identify the problem (and anyway, the point is that these should never be seen). Each of the annotated callbacks in this patch triggers -Wunused-parameters, and was manually inspected to make sure all callers use the correct options (so none of these BUGs should be triggerable). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-19Merge branch 'nd/the-index'Junio C Hamano1-7/+9
Various codepaths in the core-ish part learn to work on an arbitrary in-core index structure, not necessarily the default instance "the_index". * nd/the-index: (23 commits) revision.c: reduce implicit dependency the_repository revision.c: remove implicit dependency on the_index ws.c: remove implicit dependency on the_index tree-diff.c: remove implicit dependency on the_index submodule.c: remove implicit dependency on the_index line-range.c: remove implicit dependency on the_index userdiff.c: remove implicit dependency on the_index rerere.c: remove implicit dependency on the_index sha1-file.c: remove implicit dependency on the_index patch-ids.c: remove implicit dependency on the_index merge.c: remove implicit dependency on the_index merge-blobs.c: remove implicit dependency on the_index ll-merge.c: remove implicit dependency on the_index diff-lib.c: remove implicit dependency on the_index read-cache.c: remove implicit dependency on the_index diff.c: remove implicit dependency on the_index grep.c: remove implicit dependency on the_index diff.c: remove the_index dependency in textconv() functions blame.c: rename "repo" argument to "r" combine-diff.c: remove implicit dependency on the_index ...
2018-09-21revision.c: remove implicit dependency on the_indexNguyễn Thái Ngọc Duy1-2/+2
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-09-21rerere.c: remove implicit dependency on the_indexNguyễn Thái Ngọc Duy1-1/+1
The reason rerere(), rerere_forget() and rerere_remaining() take a struct repository instead of struct index_state is not obvious from the patch: Deep in update_paths() and find_conflict(), hold_locked_index() and read_index() are called. These functions assumes the index path at $GIT_DIR/index which is not always true when you take an arbitrary index state. Taking a repository will allow us to point to the right index path later when we replace them with repo_ versions. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-09-21merge.c: remove implicit dependency on the_indexNguyễn Thái Ngọc Duy1-3/+5
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-09-21diff.c: remove implicit dependency on the_indexNguyễn Thái Ngọc Duy1-1/+1
A new variant repo_diff_setup() is added that takes 'struct repository *' and diff_setup() becomes a thin macro around it that is protected by NO_THE_REPOSITORY_COMPATIBILITY_MACROS, similar to NO_THE_INDEX_.... The plan is these macros will always be defined for all library files and the macros are only accessible in builtin/ Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-09-17Merge branch 'jk/cocci'Junio C Hamano1-3/+3
spatch transformation to replace boolean uses of !hashcmp() to newly introduced oideq() is added, and applied, to regain performance lost due to support of multiple hash algorithms. * jk/cocci: show_dirstat: simplify same-content check read-cache: use oideq() in ce_compare functions convert hashmap comparison functions to oideq() convert "hashcmp() != 0" to "!hasheq()" convert "oidcmp() != 0" to "!oideq()" convert "hashcmp() == 0" to hasheq() convert "oidcmp() == 0" to oideq() introduce hasheq() and oideq() coccinelle: use <...> for function exclusion
2018-09-17Merge branch 'ds/reachable'Junio C Hamano1-0/+1
The code for computing history reachability has been shuffled, obtained a bunch of new tests to cover them, and then being improved. * ds/reachable: commit-reach: correct accidental #include of C file commit-reach: use can_all_from_reach commit-reach: make can_all_from_reach... linear commit-reach: replace ref_newer logic test-reach: test commit_contains test-reach: test can_all_from_reach_with_flags test-reach: test reduce_heads test-reach: test get_merge_bases_many test-reach: test is_descendant_of test-reach: test in_merge_bases test-reach: create new test tool for ref_newer commit-reach: move can_all_from_reach_with_flags upload-pack: generalize commit date cutoff upload-pack: refactor ok_to_give_up() upload-pack: make reachable() more generic commit-reach: move commit_contains from ref-filter commit-reach: move ref_newer from remote.c commit.h: remove method declarations commit-reach: move walk methods from commit.c
2018-08-29convert "oidcmp() != 0" to "!oideq()"Jeff King1-1/+1
This is the flip side of the previous two patches: checking for a non-zero oidcmp() can be more strictly expressed as inequality. Like those patches, we write "!= 0" in the coccinelle transformation, which covers by isomorphism the more common: if (oidcmp(E1, E2)) As with the previous two patches, this patch can be achieved almost entirely by running "make coccicheck"; the only differences are manual line-wrap fixes to match the original code. There is one thing to note for anybody replicating this, though: coccinelle 1.0.4 seems to miss the case in builtin/tag.c, even though it's basically the same as all the others. Running with 1.0.7 does catch this, so presumably it's just a coccinelle bug that was fixed in the interim. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-08-29convert "oidcmp() == 0" to oideq()Jeff King1-2/+2
Using the more restrictive oideq() should, in the long run, give the compiler more opportunities to optimize these callsites. For now, this conversion should be a complete noop with respect to the generated code. The result is also perhaps a little more readable, as it avoids the "zero is equal" idiom. Since it's so prevalent in C, I think seasoned programmers tend not to even notice it anymore, but it can sometimes make for awkward double negations (e.g., we can drop a few !!oidcmp() instances here). This patch was generated almost entirely by the included coccinelle patch. This mechanical conversion should be completely safe, because we check explicitly for cases where oidcmp() is compared to 0, which is what oideq() is doing under the hood. Note that we don't have to catch "!oidcmp()" separately; coccinelle's standard isomorphisms make sure the two are treated equivalently. I say "almost" because I did hand-edit the coccinelle output to fix up a few style violations (it mostly keeps the original formatting, but sometimes unwraps long lines). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-08-15Merge branch 'nd/i18n'Junio C Hamano1-1/+1
Many more strings are prepared for l10n. * nd/i18n: (23 commits) transport-helper.c: mark more strings for translation transport.c: mark more strings for translation sha1-file.c: mark more strings for translation sequencer.c: mark more strings for translation replace-object.c: mark more strings for translation refspec.c: mark more strings for translation refs.c: mark more strings for translation pkt-line.c: mark more strings for translation object.c: mark more strings for translation exec-cmd.c: mark more strings for translation environment.c: mark more strings for translation dir.c: mark more strings for translation convert.c: mark more strings for translation connect.c: mark more strings for translation config.c: mark more strings for translation commit-graph.c: mark more strings for translation builtin/replace.c: mark more strings for translation builtin/pack-objects.c: mark more strings for translation builtin/grep.c: mark strings for translation builtin/config.c: mark more strings for translation ...
2018-08-02Merge branch 'js/rebase-merge-octopus'Junio C Hamano1-0/+32
"git rebase --rebase-merges" mode now handles octopus merges as well. * js/rebase-merge-octopus: rebase --rebase-merges: adjust man page for octopus support rebase --rebase-merges: add support for octopus merges merge: allow reading the merge commit message from a file
2018-08-02Merge branch 'bc/object-id'Junio C Hamano1-5/+6
Conversion from uchar[40] to struct object_id continues. * bc/object-id: pretty: switch hard-coded constants to the_hash_algo sha1-file: convert constants to uses of the_hash_algo log-tree: switch GIT_SHA1_HEXSZ to the_hash_algo->hexsz diff: switch GIT_SHA1_HEXSZ to use the_hash_algo builtin/merge-recursive: make hash independent builtin/merge: switch to use the_hash_algo builtin/fmt-merge-msg: make hash independent builtin/update-index: simplify parsing of cacheinfo builtin/update-index: convert to using the_hash_algo refs/files-backend: use the_hash_algo for writing refs sha1-name: use the_hash_algo when parsing object names strbuf: allocate space with GIT_MAX_HEXSZ commit: express tree entry constants in terms of the_hash_algo hex: switch to using the_hash_algo tree-walk: replace hard-coded constants with the_hash_algo cache: update object ID functions for the_hash_algo
2018-07-23Update messages in preparation for i18nNguyễn Thái Ngọc Duy1-1/+1
Many messages will be marked for translation in the following commits. This commit updates some of them to be more consistent and reduce diff noise in those commits. Changes are - keep the first letter of die(), error() and warning() in lowercase - no full stop in die(), error() or warning() if it's single sentence messages - indentation - some messages are turned to BUG(), or prefixed with "BUG:" and will not be marked for i18n - some messages are improved to give more information - some messages are broken down by sentence to be i18n friendly (on the same token, combine multiple warning() into one big string) - the trailing \n is converted to printf_ln if possible, or deleted if not redundant - errno_errno() is used instead of explicit strerror() Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-20commit.h: remove method declarationsDerrick Stolee1-0/+1
These methods are now declared in commit-reach.h. Remove them from commit.h and add new include statements in all files that require these declarations. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-18Merge branch 'sb/object-store-grafts'Junio C Hamano1-18/+19
The conversion to pass "the_repository" and then "a_repository" throughout the object access API continues. * sb/object-store-grafts: commit: allow lookup_commit_graft to handle arbitrary repositories commit: allow prepare_commit_graft to handle arbitrary repositories shallow: migrate shallow information into the object parser path.c: migrate global git_path_* to take a repository argument cache: convert get_graft_file to handle arbitrary repositories commit: convert read_graft_file to handle arbitrary repositories commit: convert register_commit_graft to handle arbitrary repositories commit: convert commit_graft_pos() to handle arbitrary repositories shallow: add repository argument to is_repository_shallow shallow: add repository argument to check_shallow_file_for_update shallow: add repository argument to register_shallow shallow: add repository argument to set_alternate_shallow_file commit: add repository argument to lookup_commit_graft commit: add repository argument to prepare_commit_graft commit: add repository argument to read_graft_file commit: add repository argument to register_commit_graft commit: add repository argument to commit_graft_pos object: move grafts to object parser object-store: move object access functions to object-store.h
2018-07-16builtin/merge: switch to use the_hash_algobrian m. carlson1-5/+6
Switch uses of GIT_SHA1_HEXSZ to use the_hash_algo instead. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-11merge: allow reading the merge commit message from a fileJohannes Schindelin1-0/+32
This is consistent with `git commit` which, like `git merge`, supports passing the commit message via `-m <msg>` and, unlike `git merge` before this patch, via `-F <file>`. It is useful to allow this for scripted use, or for the upcoming patch to allow (re-)creating octopus merges in `git rebase --rebase-merges`. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-29Merge branch 'sb/object-store-grafts' into sb/object-store-lookupJunio C Hamano1-18/+19
* sb/object-store-grafts: commit: allow lookup_commit_graft to handle arbitrary repositories commit: allow prepare_commit_graft to handle arbitrary repositories shallow: migrate shallow information into the object parser path.c: migrate global git_path_* to take a repository argument cache: convert get_graft_file to handle arbitrary repositories commit: convert read_graft_file to handle arbitrary repositories commit: convert register_commit_graft to handle arbitrary repositories commit: convert commit_graft_pos() to handle arbitrary repositories shallow: add repository argument to is_repository_shallow shallow: add repository argument to check_shallow_file_for_update shallow: add repository argument to register_shallow shallow: add repository argument to set_alternate_shallow_file commit: add repository argument to lookup_commit_graft commit: add repository argument to prepare_commit_graft commit: add repository argument to read_graft_file commit: add repository argument to register_commit_graft commit: add repository argument to commit_graft_pos object: move grafts to object parser object-store: move object access functions to object-store.h
2018-06-25Merge branch 'ds/commit-graph-lockfile-fix'Junio C Hamano1-3/+4
Update to ds/generation-numbers topic. * ds/commit-graph-lockfile-fix: commit-graph: fix UX issue when .lock file exists commit-graph.txt: update design document merge: check config before loading commits commit: use generation number in remove_redundant() commit: add short-circuit to paint_down_to_common() commit: use generation numbers for in_merge_bases() ref-filter: use generation number for --contains commit-graph: always load commit-graph information commit: use generations in paint_down_to_common() commit-graph: compute generation numbers commit: add generation number to struct commit ref-filter: fix outdated comment on in_commit_list
2018-06-25Merge branch 'nd/commit-util-to-slab'Junio C Hamano1-12/+13
The in-core "commit" object had an all-purpose "void *util" field, which was tricky to use especially in library-ish part of the code. All of the existing uses of the field has been migrated to a more dedicated "commit-slab" mechanism and the field is eliminated. * nd/commit-util-to-slab: commit.h: delete 'util' field in struct commit merge: use commit-slab in merge remote desc instead of commit->util log: use commit-slab in prepare_bases() instead of commit->util show-branch: note about its object flags usage show-branch: use commit-slab for commit-name instead of commit->util name-rev: use commit-slab for rev-name instead of commit->util bisect.c: use commit-slab for commit weight instead of commit->util revision.c: use commit-slab for show_source sequencer.c: use commit-slab to associate todo items to commits sequencer.c: use commit-slab to mark seen commits shallow.c: use commit-slab for commit depth instead of commit->util describe: use commit-slab for commit names instead of commit->util blame: use commit-slab for blame suspects instead of commit->util commit-slab: support shared commit-slab commit-slab.h: code split
2018-06-01Merge branch 'nd/use-opt-int-set-f'Junio C Hamano1-3/+3
Code simplification. * nd/use-opt-int-set-f: Use OPT_SET_INT_F() for cmdline option specification
2018-06-01Merge branch 'nd/command-list'Junio C Hamano1-0/+1
The list of commands with their various attributes were spread across a few places in the build procedure, but it now is getting a bit more consolidated to allow more automation. * nd/command-list: completion: allow to customize the completable command list completion: add and use --list-cmds=alias completion: add and use --list-cmds=nohelpers Move declaration for alias.c to alias.h completion: reduce completable command list completion: let git provide the completable command list command-list.txt: documentation and guide line help: use command-list.txt for the source of guides help: add "-a --verbose" to list all commands with synopsis git: support --list-cmds=list-<category> completion: implement and use --list-cmds=main,others git --list-cmds: collect command list in a string_list git.c: convert --list-* to --list-cmds=* Remove common-cmds.h help: use command-list.h for common command list generate-cmds.sh: export all commands to command-list.h generate-cmds.sh: factor out synopsis extract code
2018-05-30Merge branch 'bw/ref-prefix-for-configured-refspec'Junio C Hamano1-0/+1
"git fetch $there $refspec" that talks over protocol v2 can take advantage of server-side ref filtering; the code has been extended so that this mechanism triggers also when fetching with configured refspec. * bw/ref-prefix-for-configured-refspec: (38 commits) fetch: generate ref-prefixes when using a configured refspec refspec: consolidate ref-prefix generation logic submodule: convert push_unpushed_submodules to take a struct refspec remote: convert check_push_refs to take a struct refspec remote: convert match_push_refs to take a struct refspec http-push: store refspecs in a struct refspec transport: remove transport_verify_remote_names send-pack: store refspecs in a struct refspec transport: convert transport_push to take a struct refspec push: convert to use struct refspec push: check for errors earlier remote: convert match_explicit_refs to take a struct refspec remote: convert get_ref_match to take a struct refspec remote: convert query_refspecs to take a struct refspec remote: convert apply_refspecs to take a struct refspec remote: convert get_stale_heads to take a struct refspec fetch: convert prune_refs to take a struct refspec fetch: convert get_ref_map to take a struct refspec fetch: convert do_fetch to take a struct refspec refspec: remove the deprecated functions ...
2018-05-30Merge branch 'bc/object-id'Junio C Hamano1-7/+7
Conversion from uchar[20] to struct object_id continues. * bc/object-id: (42 commits) merge-one-file: compute empty blob object ID add--interactive: compute the empty tree value Update shell scripts to compute empty tree object ID sha1_file: only expose empty object constants through git_hash_algo dir: use the_hash_algo for empty blob object ID sequencer: use the_hash_algo for empty tree object ID cache-tree: use is_empty_tree_oid sha1_file: convert cached object code to struct object_id builtin/reset: convert use of EMPTY_TREE_SHA1_BIN builtin/receive-pack: convert one use of EMPTY_TREE_SHA1_HEX wt-status: convert two uses of EMPTY_TREE_SHA1_HEX submodule: convert several uses of EMPTY_TREE_SHA1_HEX sequencer: convert one use of EMPTY_TREE_SHA1_HEX merge: convert empty tree constant to the_hash_algo builtin/merge: switch tree functions to use object_id builtin/am: convert uses of EMPTY_TREE_SHA1_BIN to the_hash_algo sha1-file: add functions for hex empty tree and blob OIDs builtin/receive-pack: avoid hard-coded constants for push certs diff: specify abbreviation size in terms of the_hash_algo upload-pack: replace use of several hard-coded constants ...
2018-05-30Merge branch 'ma/lockfile-cleanup'Junio C Hamano1-2/+2
Code clean-up to adjust to a more recent lockfile API convention that allows lockfile instances kept on the stack. * ma/lockfile-cleanup: lock_file: move static locks into functions lock_file: make function-local locks non-static refs.c: do not die if locking fails in `delete_pseudoref()` refs.c: do not die if locking fails in `write_pseudoref()` t/helper/test-write-cache: clean up lock-handling
2018-05-24Use OPT_SET_INT_F() for cmdline option specificationNguyễn Thái Ngọc Duy1-3/+3
The only thing these commands need is extra parseopt flag which can be passed in by OPT_SET_INT_F() and it is a bit more compact than full struct initialization. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-22merge: check config before loading commitsDerrick Stolee1-3/+4
Now that we use generation numbers from the commit-graph, we must ensure that all commits that exist in the commit-graph are loaded from that file instead of from the object database. Since the commit-graph file is only checked if core.commitGraph is true, we must check the default config before we load any commits. In the merge builtin, the config was checked after loading the HEAD commit. This was due to the use of the global 'branch' when checking merge-specific config settings. Move the config load to be between the initialization of 'branch' and the commit lookup. Without this change, a fast-forward merge would hit a BUG("bad generation skip") statement in commit.c during paint_down_to_common(). This is because the HEAD commit would be loaded with "infinite" generation but then reached by commits with "finite" generation numbers. Add a test to t5318-commit-graph.sh that exercises this code path to prevent a regression. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-21merge: use commit-slab in merge remote desc instead of commit->utilNguyễn Thái Ngọc Duy1-12/+13
It's done so that commit->util can be removed. See more explanation in the commit that removes commit->util. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-21Move declaration for alias.c to alias.hNguyễn Thái Ngọc Duy1-0/+1
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-18path.c: migrate global git_path_* to take a repository argumentStefan Beller1-18/+19
Migrate all git_path_* functions that are defined in path.c to take a repository argument. Unlike other patches in this series, do not use the #define trick, as we rewrite the whole function, which is rather small. This doesn't migrate all the functions, as other builtins have their own local path functions defined using GIT_PATH_FUNC. So keep that macro around to serve the other locations. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-18refspec: move refspec parsing logic into its own fileBrandon Williams1-0/+1
In preparation for performing a refactor on refspec related code, move the refspec parsing logic into its own file. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-10lock_file: make function-local locks non-staticMartin Ågren1-2/+2
Placing `struct lock_file`s on the stack used to be a bad idea, because the temp- and lockfile-machinery would keep a pointer into the struct. But after 076aa2cbd (tempfile: auto-allocate tempfiles on heap, 2017-09-05), we can safely have lockfiles on the stack. (This applies even if a user returns early, leaving a locked lock behind.) These `struct lock_file`s are local to their respective functions and we can drop their staticness. For good measure, I have inspected these sites and come to believe that they always release the lock, with the possible exception of bailing out using `die()` or `exit()` or by returning from a `cmd_foo()`. As pointed out by Jeff King, it would be bad if someone held on to a `struct lock_file *` for some reason. After some grepping, I agree with his findings: no-one appears to be doing that. Signed-off-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-02builtin/merge: switch tree functions to use object_idbrian m. carlson1-7/+7
The read_empty and reset_hard functions are static and their callers have already changed to use struct object_id, so convert them as well. To avoid dependency on the hash algorithm in use, switch from using EMPTY_TREE_SHA1_HEX to using empty_tree_oid_hex. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-11Merge branch 'sb/object-store'Junio C Hamano1-1/+1
Refactoring the internal global data structure to make it possible to open multiple repositories, work with and then close them. Rerolled by Duy on top of a separate preliminary clean-up topic. The resulting structure of the topics looked very sensible. * sb/object-store: (27 commits) sha1_file: allow sha1_loose_object_info to handle arbitrary repositories sha1_file: allow map_sha1_file to handle arbitrary repositories sha1_file: allow map_sha1_file_1 to handle arbitrary repositories sha1_file: allow open_sha1_file to handle arbitrary repositories sha1_file: allow stat_sha1_file to handle arbitrary repositories sha1_file: allow sha1_file_name to handle arbitrary repositories sha1_file: add repository argument to sha1_loose_object_info sha1_file: add repository argument to map_sha1_file sha1_file: add repository argument to map_sha1_file_1 sha1_file: add repository argument to open_sha1_file sha1_file: add repository argument to stat_sha1_file sha1_file: add repository argument to sha1_file_name sha1_file: allow prepare_alt_odb to handle arbitrary repositories sha1_file: allow link_alt_odb_entries to handle arbitrary repositories sha1_file: add repository argument to prepare_alt_odb sha1_file: add repository argument to link_alt_odb_entries sha1_file: add repository argument to read_info_alternates sha1_file: add repository argument to link_alt_odb_entry sha1_file: add raw_object_store argument to alt_odb_usable pack: move approximate object count to object store ...
2018-04-11Merge branch 'bw/c-plus-plus' into ds/lazy-load-treesJunio C Hamano1-1/+1
* bw/c-plus-plus: (37 commits) replace: rename 'new' variables trailer: rename 'template' variables tempfile: rename 'template' variables wrapper: rename 'template' variables environment: rename 'namespace' variables diff: rename 'template' variables environment: rename 'template' variables init-db: rename 'template' variables unpack-trees: rename 'new' variables trailer: rename 'new' variables submodule: rename 'new' variables split-index: rename 'new' variables remote: rename 'new' variables ref-filter: rename 'new' variables read-cache: rename 'new' variables line-log: rename 'new' variables imap-send: rename 'new' variables http: rename 'new' variables entry: rename 'new' variables diffcore-delta: rename 'new' variables ...
2018-04-10Merge branch 'bc/object-id'Junio C Hamano1-4/+4
Conversion from uchar[20] to struct object_id continues. * bc/object-id: (36 commits) convert: convert to struct object_id sha1_file: introduce a constant for max header length Convert lookup_replace_object to struct object_id sha1_file: convert read_sha1_file to struct object_id sha1_file: convert read_object_with_reference to object_id tree-walk: convert tree entry functions to object_id streaming: convert istream internals to struct object_id tree-walk: convert get_tree_entry_follow_symlinks internals to object_id builtin/notes: convert static functions to object_id builtin/fmt-merge-msg: convert remaining code to object_id sha1_file: convert sha1_object_info* to object_id Convert remaining callers of sha1_object_info_extended to object_id packfile: convert unpack_entry to struct object_id sha1_file: convert retry_bad_packed_offset to struct object_id sha1_file: convert assert_sha1_type to object_id builtin/mktree: convert to struct object_id streaming: convert open_istream to use struct object_id sha1_file: convert check_sha1_signature to struct object_id sha1_file: convert read_loose_object to use struct object_id builtin/index-pack: convert struct ref_delta_entry to object_id ...
2018-03-26object-store: close all packs upon clearing the object storeStefan Beller1-1/+1
Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-21Merge branch 'ma/skip-writing-unchanged-index'Junio C Hamano1-9/+6
Internal API clean-up to allow write_locked_index() optionally skip writing the in-core index when it is not modified. * ma/skip-writing-unchanged-index: write_locked_index(): add flag to avoid writing unchanged index
2018-03-14Convert find_unique_abbrev* to struct object_idbrian m. carlson1-3/+3
Convert find_unique_abbrev and find_unique_abbrev_r to each take a pointer to struct object_id. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-14cache-tree: convert write_*_as_tree to object_idbrian m. carlson1-1/+1
Convert write_index_as_tree and write_cache_as_tree to use struct object_id. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-06Merge branch 'bw/c-plus-plus'Junio C Hamano1-1/+1
Avoid using identifiers that clash with C++ keywords. Even though it is not a goal to compile Git with C++ compilers, changes like this help use of code analysis tools that targets C++ on our codebase. * bw/c-plus-plus: (37 commits) replace: rename 'new' variables trailer: rename 'template' variables tempfile: rename 'template' variables wrapper: rename 'template' variables environment: rename 'namespace' variables diff: rename 'template' variables environment: rename 'template' variables init-db: rename 'template' variables unpack-trees: rename 'new' variables trailer: rename 'new' variables submodule: rename 'new' variables split-index: rename 'new' variables remote: rename 'new' variables ref-filter: rename 'new' variables read-cache: rename 'new' variables line-log: rename 'new' variables imap-send: rename 'new' variables http: rename 'new' variables entry: rename 'new' variables diffcore-delta: rename 'new' variables ...
2018-03-06Merge branch 'jc/allow-ff-merging-kept-tags'Junio C Hamano1-4/+39
Since Git 1.7.9, "git merge" defaulted to --no-ff (i.e. even when the side branch being merged is a descendant of the current commit, create a merge commit instead of fast-forwarding) when merging a tag object. This was appropriate default for integrators who pull signed tags from their downstream contributors, but caused an unnecessary merges when used by downstream contributors who habitually "catch up" their topic branches with tagged releases from the upstream. Update "git merge" to default to --no-ff only when merging a tag object that does *not* sit at its usual place in refs/tags/ hierarchy, and allow fast-forwarding otherwise, to mitigate the problem. * jc/allow-ff-merging-kept-tags: merge: allow fast-forward when merging a tracked tag
2018-03-01write_locked_index(): add flag to avoid writing unchanged indexMartin Ågren1-9/+6
We have several callers like if (active_cache_changed && write_locked_index(...)) handle_error(); rollback_lock_file(...); where the final rollback is needed because "!active_cache_changed" shortcuts the if-expression. There are also a few variants of this, including some if-else constructs that make it more clear when the explicit rollback is really needed. Teach `write_locked_index()` to take a new flag SKIP_IF_UNCHANGED and simplify the callers. Leave the most complicated of the callers (in builtin/update-index.c) unchanged. Rewriting it to use this new flag would end up duplicating logic. We could have made the new flag behave the other way round ("FORCE_WRITE"), but that could break existing users behind their backs. Let's take the more conservative approach. We can still migrate existing callers to use our new flag. Later we might even be able to flip the default, possibly without entirely ignoring the risk to in-flight or out-of-tree topics. Suggested-by: Jeff King <peff@peff.net> Signed-off-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-16merge: allow fast-forward when merging a tracked tagJunio C Hamano1-4/+39
Long time ago at fab47d05 ("merge: force edit and no-ff mode when merging a tag object", 2011-11-07), "git merge" was made to always create a merge commit when merging a tag, even when the side branch being merged is a descendant of the current branch. This default is good for merges made by upstream maintainers to integrate work signed by downstream contributors, but will leave pointless no-ff merges when downstream contributors pull a newer release tag to make their long-running topic branches catch up with the upstream. When there is no local work left on the topic, such a merge should simply fast-forward to the commit pointed at by the release tag. Update the default (again) for "git merge" that merges a tag object to (1) --no-ff (i.e. create a merge commit even when side branch fast forwards) if the tag being merged is not at its expected place in refs/tags/ hierarchy and (2) --ff (i.e. allow fast-forward update when able) otherwise. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-14object: rename function 'typename' to 'type_name'Brandon Williams1-1/+1
Rename C++ keyword in order to bring the codebase closer to being able to be compiled with a C++ compiler. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-01-30commit: convert commit_tree* to object_idPatryk Obara1-4/+4
Convert the definitions and declarations of commit_tree and commit_tree_extended to use struct object_id and adjust all usages of these functions. Signed-off-by: Patryk Obara <patryk.obara@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-12merge: add config option for verifySignaturesHans Jerry Illikainen1-0/+2
git merge --verify-signatures can be used to verify that the tip commit of the branch being merged in is properly signed, but it's cumbersome to have to specify that every time. Add a configuration option that enables this behaviour by default, which can be overridden by --no-verify-signatures. Signed-off-by: Hans Jerry Illikainen <hji@dyntopia.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-15Merge branch 'ma/reduce-heads-leakfix'Junio C Hamano1-0/+1
Leak fixes. * ma/reduce-heads-leakfix: reduce_heads: fix memory leaks builtin/merge-base: free commit lists
2017-11-08reduce_heads: fix memory leaksMartin Ågren1-0/+1
We currently have seven callers of `reduce_heads(foo)`. Six of them do not use the original list `foo` again, and actually, all six of those end up leaking it. Introduce and use `reduce_heads_replace(&foo)` as a leak-free version of `foo = reduce_heads(foo)` to fix several of these. Fix the remaining leaks using `free_commit_list()`. While we're here, document `reduce_heads()` and mark it as `extern`. Signed-off-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-16refs: convert dwim_ref and expand_ref to struct object_idbrian m. carlson1-1/+1
All of the callers of these functions just pass the hash member of a struct object_id, so convert them to use a pointer to struct object_id directly. Insert a check for NULL in expand_ref on a temporary basis; this check can be removed when resolve_ref_unsafe is converted as well. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-16refs: convert resolve_refdup and refs_resolve_refdup to struct object_idbrian m. carlson1-1/+1
All of the callers already pass the hash member of struct object_id, so update them to pass a pointer to the struct directly, This transformation was done with an update to declaration and definition and the following semantic patch: @@ expression E1, E2, E3, E4; @@ - resolve_refdup(E1, E2, E3.hash, E4) + resolve_refdup(E1, E2, &E3, E4) @@ expression E1, E2, E3, E4; @@ - resolve_refdup(E1, E2, E3->hash, E4) + resolve_refdup(E1, E2, E3, E4) Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-16refs: convert update_ref and refs_update_ref to use struct object_idbrian m. carlson1-7/+6
Convert update_ref, refs_update_ref, and write_pseudoref to use struct object_id. Update the existing callers as well. Remove update_ref_oid, as it is no longer needed. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-19Merge branch 'rs/strbuf-leakfix'Junio C Hamano1-2/+7
Many leaks of strbuf have been fixed. * rs/strbuf-leakfix: (34 commits) wt-status: release strbuf after use in wt_longstatus_print_tracking() wt-status: release strbuf after use in read_rebase_todolist() vcs-svn: release strbuf after use in end_revision() utf8: release strbuf on error return in strbuf_utf8_replace() userdiff: release strbuf after use in userdiff_get_textconv() transport-helper: release strbuf after use in process_connect_service() sequencer: release strbuf after use in save_head() shortlog: release strbuf after use in insert_one_record() sha1_file: release strbuf on error return in index_path() send-pack: release strbuf on error return in send_pack() remote: release strbuf after use in set_url() remote: release strbuf after use in migrate_file() remote: release strbuf after use in read_remote_branches() refs: release strbuf on error return in write_pseudoref() notes: release strbuf after use in notes_copy_from_stdin() merge: release strbuf after use in write_merge_heads() merge: release strbuf after use in save_state() mailinfo: release strbuf on error return in handle_boundary() mailinfo: release strbuf after use in handle_from() help: release strbuf on error return in exec_woman_emacs() ...
2017-09-19Merge branch 'sb/merge-commit-msg-hook'Junio C Hamano1-0/+8
As "git commit" to conclude a conflicted "git merge" honors the commit-msg hook, "git merge" that recoreds a merge commit that cleanly auto-merges should, but it didn't. * sb/merge-commit-msg-hook: builtin/merge: honor commit-msg hook for merges
2017-09-10Merge branch 'ma/up-to-date'Junio C Hamano1-2/+2
Message and doc updates. * ma/up-to-date: treewide: correct several "up-to-date" to "up to date" Documentation/user-manual: update outdated example output
2017-09-08builtin/merge: honor commit-msg hook for mergesStefan Beller1-0/+8
Similar to 65969d43d1 (merge: honor prepare-commit-msg hook, 2011-02-14) merge should also honor the commit-msg hook: When a merge is stopped due to conflicts or --no-commit, the subsequent commit calls the commit-msg hook. However, it is not called after a clean merge. Fix this inconsistency by invoking the hook after clean merges as well. This change is motivated by Gerrit's commit-msg hook to install a ChangeId trailer into the commit message. Without such a ChangeId, Gerrit refuses to accept any commit by default, such that the inconsistency of (not) running the commit-msg hook between commit and merge leads to confusion and might block people from getting their work done. As the githooks man page is very vocal about the possibility of skipping the commit-msg hook via the --no-verify option, implement the option in merge, too. 'git merge --continue' is currently implemented as calling cmd_commit with no further arguments. This works for most other merge related options, such as demonstrated via the --allow-unrelated-histories flag in the test. The --no-verify option however is not remembered across invocations of git-merge. Originally the author assumed an alternative in which the 'git merge --continue' command accepts the --no-verify flag, but that opens up the discussion which flags are allows to the continued merge command and which must be given in the first invocation. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-07merge: release strbuf after use in write_merge_heads()Rene Scharfe1-0/+1
Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-07merge: release strbuf after use in save_state()Rene Scharfe1-2/+6
Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-08-26Merge branch 'mg/killed-merge'Junio C Hamano1-3/+12
Killing "git merge --edit" before the editor returns control left the repository in a state with MERGE_MSG but without MERGE_HEAD, which incorrectly tells the subsequent "git commit" that there was a squash merge in progress. This has been fixed. * mg/killed-merge: merge: save merge state earlier merge: split write_merge_state in two merge: clarify call chain Documentation/git-merge: explain --continue
2017-08-26Merge branch 'jt/packmigrate'Junio C Hamano1-0/+1
Code movement to make it easier to hack later. * jt/packmigrate: (23 commits) pack: move for_each_packed_object() pack: move has_pack_index() pack: move has_sha1_pack() pack: move find_pack_entry() and make it global pack: move find_sha1_pack() pack: move find_pack_entry_one(), is_pack_valid() pack: move check_pack_index_ptr(), nth_packed_object_offset() pack: move nth_packed_object_{sha1,oid} pack: move clear_delta_base_cache(), packed_object_info(), unpack_entry() pack: move unpack_object_header() pack: move get_size_from_delta() pack: move unpack_object_header_buffer() pack: move {,re}prepare_packed_git and approximate_object_count pack: move install_packed_git() pack: move add_packed_git() pack: move unuse_pack() pack: move use_pack() pack: move pack-closing functions pack: move release_pack_memory() pack: move open_pack_index(), parse_pack_index() ...
2017-08-24Merge branch 'lg/merge-signoff'Junio C Hamano1-0/+4
"git merge" learned a "--signoff" option to add the Signed-off-by: trailer with the committer's name. * lg/merge-signoff: merge: add a --signoff flag
2017-08-23pack: move pack-closing functionsJonathan Tan1-0/+1
The function close_pack_fd() needs to be temporarily made global. Its scope will be restored to static in a subsequent commit. Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-08-23treewide: correct several "up-to-date" to "up to date"Martin Ågren1-2/+2
Follow the Oxford style, which says to use "up-to-date" before the noun, but "up to date" after it. Don't change plumbing (specifically send-pack.c, but transport.c (git push) also has the same string). This was produced by grepping for "up-to-date" and "up to date". It turned out we only had to edit in one direction, removing the hyphens. Fix a typo in Documentation/git-diff-index.txt while we're there. Reported-by: Jeffrey Manian <jeffrey.manian@gmail.com> Reported-by: STEVEN WHITE <stevencharleswhitevoices@gmail.com> Signed-off-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-08-23merge: save merge state earlierMichael J Gruber1-0/+2
If the `git merge` process is killed while waiting for the editor to finish, the merge state is lost but the prepared merge msg and tree is kept. So, a subsequent `git commit` creates a squashed merge even when the user asked for proper merge commit originally. Demonstrate the problem with a test crafted after the in t7502. The test requires EXECKEEPSPID (thus does not run under MINGW). Save the merge state earlier (in the non-squash case) so that it does not get lost. This makes the test pass. Reported-by: hIpPy <hippy2981@gmail.com> Signed-off-by: Michael J Gruber <git@grubix.eu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-08-23merge: split write_merge_state in twoMichael J Gruber1-3/+8
write_merge_state() writes out the merge heads, mode, and msg. But we may want to write out heads, mode without the msg. So, split out heads (+mode) into a separate function write_merge_heads() that is called by write_merge_state(). No funtional change so far, except when these non-atomic writes are interrupted: we write heads-mode-msg now when we used to write heads-msg-mode. Signed-off-by: Michael J Gruber <git@grubix.eu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-08-23merge: clarify call chainMichael J Gruber1-0/+2
prepare_to_commit() cannot be reached in the non-squash case: It is called by merge_trivial() and finish_automerge() only, but the calls to the latter are somewhat hard to track: If option_commit is not set, the code in cmd_merge() uses a fake conflict return code (ret=1) to avoid writing the tree, which also avoids setting automerge_was_ok (just as in the proper ret==1 case), so that finish_automerge() is not called. To ensure that no code change breaks that assumption, safe-guard prepare_to_commit() by a BUG() statement. Suggested-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Michael J Gruber <git@grubix.eu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-08-22Merge branch 'rs/merge-microcleanup'Junio C Hamano1-2/+2
Code clean-up. * rs/merge-microcleanup: merge: use skip_prefix()
2017-08-22Merge branch 'ma/parse-maybe-bool'Junio C Hamano1-2/+2
Code clean-up. * ma/parse-maybe-bool: parse_decoration_style: drop unused argument `var` treewide: deprecate git_config_maybe_bool, use git_parse_maybe_bool config: make git_{config,parse}_maybe_bool equivalent config: introduce git_parse_maybe_bool_text t5334: document that git push --signed=1 does not work Doc/git-{push,send-pack}: correct --sign= to --signed=
2017-08-10merge: use skip_prefix()René Scharfe1-2/+2
Get rid of a magic string length constant by using skip_prefix() instead of starts_with(). Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-08-07treewide: deprecate git_config_maybe_bool, use git_parse_maybe_boolMartin Ågren1-2/+2
The only difference between these is that the former takes an argument `name` which it ignores completely. Still, the callers are quite careful to provide reasonable values for it. Once in-flight topics have landed, we should be able to remove git_config_maybe_bool. In the meantime, document it as deprecated in the technical documentation. While at it, document git_parse_maybe_bool. Signed-off-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-07-25merge: add a --signoff flagŁukasz Gryglicki1-0/+4
Some projects require every commit, even merges, to be signed off [*1*]. Because "git merge" does not have a "--signoff" option like "git commit" does, the user needs to add one manually when the command presents an editor to describe the merge, or later use "git commit --amend --signoff". Help developers of these projects by teaching "--signoff" option to "git merge". *1* https://public-inbox.org/git/CAHv71zK5SqbwrBFX=a8-DY9H3KT4FEyMgv__p2gZzNr0WUAPUw@mail.gmail.com/T/#u Requested-by: Dan Kohn <dan@linuxfoundation.org> Signed-off-by: Łukasz Gryglicki <lukaszgryglicki@o2.pl> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-07-17use MOVE_ARRAYRené Scharfe1-1/+1
Simplify the code for moving members inside of an array and make it more robust by using the helper macro MOVE_ARRAY. It calculates the size based on the specified number of elements for us and supports NULL pointers when that number is zero. Raw memmove(3) calls with NULL can cause the compiler to (over-eagerly) optimize out later NULL checks. This patch was generated with contrib/coccinelle/array.cocci and spatch (Coccinelle). Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-24Merge branch 'bw/config-h'Junio C Hamano1-0/+1
Fix configuration codepath to pay proper attention to commondir that is used in multi-worktree situation, and isolate config API into its own header file. * bw/config-h: config: don't implicitly use gitdir or commondir config: respect commondir setup: teach discover_git_directory to respect the commondir config: don't include config.h by default config: remove git_config_iter config: create config.h
2017-06-19Merge branch 'bw/object-id'Junio C Hamano1-1/+1
Conversion from uchar[20] to struct object_id continues. * bw/object-id: (33 commits) diff: rename diff_fill_sha1_info to diff_fill_oid_info diffcore-rename: use is_empty_blob_oid tree-diff: convert path_appendnew to object_id tree-diff: convert diff_tree_paths to struct object_id tree-diff: convert try_to_follow_renames to struct object_id builtin/diff-tree: cleanup references to sha1 diff-tree: convert diff_tree_sha1 to struct object_id notes-merge: convert write_note_to_worktree to struct object_id notes-merge: convert verify_notes_filepair to struct object_id notes-merge: convert find_notes_merge_pair_ps to struct object_id notes-merge: convert merge_from_diffs to struct object_id notes-merge: convert notes_merge* to struct object_id tree-diff: convert diff_root_tree_sha1 to struct object_id combine-diff: convert find_paths_* to struct object_id combine-diff: convert diff_tree_combined to struct object_id diff: convert diff_flush_patch_id to struct object_id patch-ids: convert to struct object_id diff: finish conversion for prepare_temp_file to struct object_id diff: convert reuse_worktree_file to struct object_id diff: convert fill_filespec to struct object_id ...
2017-06-15config: don't include config.h by defaultBrandon Williams1-0/+1
Stop including config.h by default in cache.h. Instead only include config.h in those files which require use of the config system. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-13Merge branch 'nd/fopen-errors'Junio C Hamano1-3/+1
We often try to open a file for reading whose existence is optional, and silently ignore errors from open/fopen; report such errors if they are not due to missing files. * nd/fopen-errors: mingw_fopen: report ENOENT for invalid file names mingw: verify that paths are not mistaken for remote nicknames log: fix memory leak in open_next_file() rerere.c: move error_errno() closer to the source system call print errno when reporting a system call error wrapper.c: make warn_on_inaccessible() static wrapper.c: add and use fopen_or_warn() wrapper.c: add and use warn_on_fopen_errors() config.mak.uname: set FREAD_READS_DIRECTORIES for Darwin, too config.mak.uname: set FREAD_READS_DIRECTORIES for Linux and FreeBSD clone: use xfopen() instead of fopen() use xfopen() in more places git_fopen: fix a sparse 'not declared' warning
2017-06-05diff-tree: convert diff_tree_sha1 to struct object_idBrandon Williams1-1/+1
Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-26use xfopen() in more placesNguyễn Thái Ngọc Duy1-3/+1
xfopen() - provides error details - explains error on reading, or writing, or whatever operation - has l10n support - prints file name in the error Some of these are missing in the places that are replaced with xfopen(), which is a clear win. In some other places, it's just less code (not as clearly a win as the previous case but still is). The only slight regresssion is in remote-testsvn, where we don't report the file class (marks files) in the error messages anymore. But since this is a _test_ svn remote transport, I'm not too concerned. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-08tree: convert parse_tree_indirect to struct object_idbrian m. carlson1-3/+3
Convert parse_tree_indirect to take a pointer to struct object_id. Update all the callers. This transformation was achieved using the following semantic patch and manual updates to the declaration and definition. Update builtin/checkout.c manually as well, since it uses a ternary expression not handled by the semantic patch. @@ expression E1; @@ - parse_tree_indirect(E1.hash) + parse_tree_indirect(&E1) @@ expression E1; @@ - parse_tree_indirect(E1->hash) + parse_tree_indirect(E1) Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-08merge: convert checkout_fast_forward to struct object_idbrian m. carlson1-2/+2
Converting checkout_fast_forward is required to convert parse_tree_indirect. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-08Convert lookup_commit* to struct object_idbrian m. carlson1-1/+1
Convert lookup_commit, lookup_commit_or_die, lookup_commit_reference, and lookup_commit_reference_gently to take struct object_id arguments. Introduce a temporary in parse_object buffer in order to convert this function. This is required since in order to convert parse_object and parse_object_buffer, lookup_commit_reference_gently and lookup_commit_or_die would need to be converted. Not introducing a temporary would therefore require that lookup_commit_or_die take a struct object_id *, but lookup_commit would take unsigned char *, leaving a confusing and hard-to-use interface. parse_object_buffer will lose this temporary in a later patch. This commit was created with manual changes to commit.c, commit.h, and object.c, plus the following semantic patch: @@ expression E1, E2; @@ - lookup_commit_reference_gently(E1.hash, E2) + lookup_commit_reference_gently(&E1, E2) @@ expression E1, E2; @@ - lookup_commit_reference_gently(E1->hash, E2) + lookup_commit_reference_gently(E1, E2) @@ expression E1; @@ - lookup_commit_reference(E1.hash) + lookup_commit_reference(&E1) @@ expression E1; @@ - lookup_commit_reference(E1->hash) + lookup_commit_reference(E1) @@ expression E1; @@ - lookup_commit(E1.hash) + lookup_commit(&E1) @@ expression E1; @@ - lookup_commit(E1->hash) + lookup_commit(E1) @@ expression E1, E2; @@ - lookup_commit_or_die(E1.hash, E2) + lookup_commit_or_die(&E1, E2) @@ expression E1, E2; @@ - lookup_commit_or_die(E1->hash, E2) + lookup_commit_or_die(E1, E2) Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-19Merge branch 'bc/object-id'Junio C Hamano1-1/+1
Conversion from unsigned char [40] to struct object_id continues. * bc/object-id: Documentation: update and rename api-sha1-array.txt Rename sha1_array to oid_array Convert sha1_array_for_each_unique and for_each_abbrev to object_id Convert sha1_array_lookup to take struct object_id Convert remaining callers of sha1_array_lookup to object_id Make sha1_array_append take a struct object_id * sha1-array: convert internal storage for struct sha1_array to object_id builtin/pull: convert to struct object_id submodule: convert check_for_new_submodule_commits to object_id sha1_name: convert disambiguate_hint_fn to take object_id sha1_name: convert struct disambiguate_state to object_id test-sha1-array: convert most code to struct object_id parse-options-cb: convert sha1_array_append caller to struct object_id fsck: convert init_skiplist to struct object_id builtin/receive-pack: convert portions to struct object_id builtin/pull: convert portions to struct object_id builtin/diff: convert to struct object_id Convert GIT_SHA1_RAWSZ used for allocation to GIT_MAX_RAWSZ Convert GIT_SHA1_HEXSZ used for allocation to GIT_MAX_HEXSZ Define new hash-size constants for allocating memory
2017-03-30Merge branch 'jc/merge-drop-old-syntax'Junio C Hamano1-50/+9
Stop supporting "git merge <message> HEAD <commit>" syntax that has been deprecated since October 2007, and issues a deprecation warning message since v2.5.0. * jc/merge-drop-old-syntax: merge: drop 'git merge <message> HEAD <commit>' syntax
2017-03-26Convert GIT_SHA1_HEXSZ used for allocation to GIT_MAX_HEXSZbrian m. carlson1-1/+1
Since we will likely be introducing a new hash function at some point, and that hash function might be longer than 40 hex characters, use the constant GIT_MAX_HEXSZ, which is designed to be suitable for allocations, instead of GIT_SHA1_HEXSZ. This will ease the transition down the line by distinguishing between places where we need to allocate memory suitable for the largest hash from those where we need to handle the current hash. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-17Merge branch 'bc/object-id'Junio C Hamano1-68/+66
"uchar [40]" to "struct object_id" conversion continues. * bc/object-id: wt-status: convert to struct object_id builtin/merge-base: convert to struct object_id Convert object iteration callbacks to struct object_id sha1_file: introduce an nth_packed_object_oid function refs: simplify parsing of reflog entries refs: convert each_reflog_ent_fn to struct object_id reflog-walk: convert struct reflog_info to struct object_id builtin/replace: convert to struct object_id Convert remaining callers of resolve_refdup to object_id builtin/merge: convert to struct object_id builtin/clone: convert to struct object_id builtin/branch: convert to struct object_id builtin/grep: convert to struct object_id builtin/fmt-merge-message: convert to struct object_id builtin/fast-export: convert to struct object_id builtin/describe: convert to struct object_id builtin/diff-tree: convert to struct object_id builtin/commit: convert to struct object_id hex: introduce parse_oid_hex
2017-03-14Merge branch 'jk/interpret-branch-name'Junio C Hamano1-1/+1
"git branch @" created refs/heads/@ as a branch, and in general the code that handled @{-1} and @{upstream} was a bit too loose in disambiguating. * jk/interpret-branch-name: checkout: restrict @-expansions when finding branch strbuf_check_ref_format(): expand only local branches branch: restrict @-expansions when deleting t3204: test git-branch @-expansion corner cases interpret_branch_name: allow callers to restrict expansions strbuf_branchname: add docstring strbuf_branchname: drop return value interpret_branch_name: move docstring to header file interpret_branch_name(): handle auto-namelen for @{-1}
2017-03-02interpret_branch_name: allow callers to restrict expansionsJeff King1-1/+1
The interpret_branch_name() function converts names like @{-1} and @{upstream} into branch names. The expanded ref names are not fully qualified, and may be outside of the refs/heads/ namespace (e.g., "@" expands to "HEAD", and "@{upstream}" is likely to be in "refs/remotes/"). This is OK for callers like dwim_ref() which are primarily interested in resolving the resulting name, no matter where it is. But callers like "git branch" treat the result as a branch name in refs/heads/. When we expand to a ref outside that namespace, the results are very confusing (e.g., "git branch @" tries to create refs/heads/HEAD, which is nonsense). Callers can't know from the returned string how the expansion happened (e.g., did the user really ask for a branch named "HEAD", or did we do a bogus expansion?). One fix would be to return some out-parameters describing the types of expansion that occurred. This has the benefit that the caller can generate precise error messages ("I understood @{upstream} to mean origin/master, but that is a remote tracking branch, so you cannot create it as a local name"). However, out-parameters make the function interface somewhat cumbersome. Instead, let's do the opposite: let the caller tell us which elements to expand. That's easier to pass in, and none of the callers give more precise error messages than "@{upstream} isn't a valid branch name" anyway (which should be sufficient). The strbuf_branchname() function needs a similar parameter, as most of the callers access interpret_branch_name() through it. We can break the callers down into two groups: 1. Callers that are happy with any kind of ref in the result. We pass "0" here, so they continue to work without restrictions. This includes merge_name(), the reflog handling in add_pending_object_with_path(), and substitute_branch_name(). This last is what powers dwim_ref(). 2. Callers that have funny corner cases (mostly in git-branch and git-checkout). These need to make use of the new parameter, but I've left them as "0" in this patch, and will address them individually in follow-on patches. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-22builtin/merge: convert to struct object_idbrian m. carlson1-68/+66
Additionally convert several uses of the constant 40 into GIT_SHA1_HEXSZ. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-27Merge branch 'cp/merge-continue'Junio C Hamano1-0/+25
"git merge --continue" has been added as a synonym to "git commit" to conclude a merge that has stopped due to conflicts. * cp/merge-continue: merge: mark usage error strings for translation merge: ensure '--abort' option takes no arguments completion: add --continue option for merge merge: add '--continue' option as a synonym for 'git commit'
2016-12-15merge: mark usage error strings for translationJeff King1-2/+2
The nearby error messages are already marked for translation, but these new ones aren't. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-14merge: ensure '--abort' option takes no argumentsChris Packham1-0/+4
Like '--continue', the '--abort' option doesn't make any sense with other options or arguments to 'git merge' so ensure that none are present. Signed-off-by: Chris Packham <judge.packham@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-14merge: add '--continue' option as a synonym for 'git commit'Chris Packham1-0/+21
Teach 'git merge' the --continue option which allows 'continuing' a merge by completing it. The traditional way of completing a merge after resolving conflicts is to use 'git commit'. Now with commands like 'git rebase' and 'git cherry-pick' having a '--continue' option adding such an option to 'git merge' presents a consistent UI. Signed-off-by: Chris Packham <judge.packham@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-07hold_locked_index(): align error handling with hold_lockfile_for_update()Junio C Hamano1-3/+3
Callers of the hold_locked_index() function pass 0 when they want to prepare to write a new version of the index file without wishing to die or emit an error message when the request fails (e.g. somebody else already held the lock), and pass 1 when they want the call to die upon failure. This option is called LOCK_DIE_ON_ERROR by the underlying lockfile API, and the hold_locked_index() function translates the paramter to LOCK_DIE_ON_ERROR when calling the hold_lock_file_for_update(). Replace these hardcoded '1' with LOCK_DIE_ON_ERROR and stop translating. Callers other than the ones that are replaced with this change pass '0' to the function; no behaviour change is intended with this patch. Signed-off-by: Junio C Hamano <gitster@pobox.com> --- Among the callers of hold_locked_index() that passes 0: - diff.c::refresh_index_quietly() at the end of "git diff" is an opportunistic update; it leaks the lockfile structure but it is just before the program exits and nobody should care. - builtin/describe.c::cmd_describe(), builtin/commit.c::cmd_status(), sequencer.c::read_and_refresh_cache() are all opportunistic updates and they are OK. - builtin/update-index.c::cmd_update_index() takes a lock upfront but we may end up not needing to update the index (i.e. the entries may be fully up-to-date), in which case we do not need to issue an error upon failure to acquire the lock. We do diagnose and die if we indeed need to update, so it is OK. - wt-status.c::require_clean_work_tree() IS BUGGY. It asks silence, does not check the returned value. Compare with callsites like cmd_describe() and cmd_status() to notice that it is wrong to call update_index_if_able() unconditionally.
2016-10-26find_unique_abbrev: use 4-buffer ringJeff King1-6/+5
Some code paths want to format multiple abbreviated sha1s in the same output line. Because we use a single static buffer for our return value, they have to either break their output into several calls or allocate their own arrays and use find_unique_abbrev_r(). Intead, let's mimic sha1_to_hex() and use a ring of several buffers, so that the return value stays valid through multiple calls. This shortens some of the callers, and makes it harder to for them to make a silly mistake. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-15use strbuf_addstr() for adding constant strings to a strbuf, part 2René Scharfe1-1/+1
Replace uses of strbuf_addf() for adding strings with more lightweight strbuf_addstr() calls. This makes the intent clearer and avoids potential issues with printf format specifiers. 02962d36845b89145cd69f8bc65e015d78ae3434 already converted six cases, this patch covers eleven more. A semantic patch for Coccinelle is included for easier checking for new cases that might be introduced in the future. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-08-12Merge branch 'rs/merge-add-strategies-simplification'Junio C Hamano1-34/+10
A small code clean-up. * rs/merge-add-strategies-simplification: merge: use string_list_split() in add_strategies()
2016-08-05merge: use string_list_split() in add_strategies()René Scharfe1-34/+10
Call string_list_split() for cutting a space separated list into pieces instead of reimplementing it based on struct strategy. The attr member of struct strategy was not used split_merge_strategies(); it was a pure string operation. Also be nice and clean up once we're done splitting; the old code didn't bother freeing any of the allocated memory. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>