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2018-02-02format-patch: reduce patch diffstat width to 72Nguyễn Thái Ngọc Duy1-0/+2
Patches generated by format-patch are meant to be exchanged as emails, most of the time. And since it's generally agreed that text in mails should be wrapped around 70 columns or so, make sure these diffstat follow the convention (especially when used with --cover-letter since we already defaults to wrapping 72 columns). The default can still be overriden with command line options. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-01-25format-patch: keep cover-letter diffstat wrapped in 72 columnsNguyễn Thái Ngọc Duy1-1/+4
We already wrap shortlog around 72 columns in cover letters. Do the same for diffstat (also in cover letters). Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-01-23Merge branch 'ab/commit-m-with-fixup'Junio C Hamano1-3/+5
"git commit --fixup" did not allow "-m<message>" option to be used at the same time; allow it to annotate resulting commit with more text. * ab/commit-m-with-fixup: commit: add support for --fixup <commit> -m"<extra message>" commit doc: document that -c, -C, -F and --fixup with -m error
2018-01-23Merge branch 'sb/diff-blobfind-pickaxe'Junio C Hamano1-2/+2
"diff" family of commands learned "--find-object=<object-id>" option to limit the findings to changes that involve the named object. * sb/diff-blobfind-pickaxe: diff: use HAS_MULTI_BITS instead of counting bits manually diff: properly error out when combining multiple pickaxe options diffcore: add a pickaxe option to find a specific blob diff: introduce DIFF_PICKAXE_KINDS_MASK diff: migrate diff_flags.pickaxe_ignore_case to a pickaxe_opts bit diff.h: make pickaxe_opts an unsigned bit field
2018-01-23Merge branch 'jk/abort-clone-with-existing-dest'Junio C Hamano1-7/+24
"git clone $there $here" is allowed even when here directory exists as long as it is an empty directory, but the command incorrectly removed it upon a failure of the operation. * jk/abort-clone-with-existing-dest: clone: do not clean up directories we didn't create clone: factor out dir_exists() helper t5600: modernize style t5600: fix outdated comment about unborn HEAD
2018-01-23Merge branch 'rs/lose-leak-pending'Junio C Hamano1-12/+1
API clean-up around revision traversal. * rs/lose-leak-pending: commit: remove unused function clear_commit_marks_for_object_array() revision: remove the unused flag leak_pending checkout: avoid using the rev_info flag leak_pending bundle: avoid using the rev_info flag leak_pending bisect: avoid using the rev_info flag leak_pending object: add clear_commit_marks_all() ref-filter: use clear_commit_marks_many() in do_merge_filter() commit: use clear_commit_marks_many() in remove_redundant() commit: avoid allocation in clear_commit_marks_many()
2018-01-23Merge branch 'nd/ita-wt-renames-in-status'Junio C Hamano1-1/+1
"git status" after moving a path in the working tree (hence making it appear "removed") and then adding with the -N option (hence making that appear "added") detected it as a rename, but did not report the old and new pathnames correctly. * nd/ita-wt-renames-in-status: wt-status.c: handle worktree renames wt-status.c: rename rename-related fields in wt_status_change_data wt-status.c: catch unhandled diff status codes wt-status.c: coding style fix Use DIFF_DETECT_RENAME for detect_rename assignments t2203: test status output with porcelain v2 format
2018-01-23Merge branch 'dk/describe-all-output-fix'Junio C Hamano1-2/+5
An old regression in "git describe --all $annotated_tag^0" has been fixed. * dk/describe-all-output-fix: describe: prepend "tags/" when describing tags with embedded name
2018-01-05Merge branch 'ew/empty-merge-with-dirty-index'Junio C Hamano1-37/+0
"git merge -s recursive" did not correctly abort when the index is dirty, if the merged tree happened to be the same as the current HEAD, which has been fixed. * ew/empty-merge-with-dirty-index: merge-recursive: avoid incorporating uncommitted changes in a merge move index_has_changes() from builtin/am.c to merge.c for reuse t6044: recursive can silently incorporate dirty changes in a merge
2018-01-04diff: introduce DIFF_PICKAXE_KINDS_MASKStefan Beller1-2/+2
Currently the check whether to perform pickaxing is done via checking `diffopt->pickaxe`, which contains the command line argument that we want to pickaxe for. Soon we'll introduce a new type of pickaxing, that will not store anything in the `.pickaxe` field, so let's migrate the check to be dependent on pickaxe_opts. It is not enough to just replace the check for pickaxe by pickaxe_opts, because flags might be set, but pickaxing was not requested ('-i'). To cope with that, introduce a mask to check only for the bits indicating the modes of operation. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-01-03clone: do not clean up directories we didn't createJeff King1-4/+16
Once upon a time, git-clone would refuse to write into a directory that it did not itself create. The cleanup routines for a failed clone could therefore just remove the git and worktree dirs completely. In 55892d2398 (Allow cloning to an existing empty directory, 2009-01-11), we learned to write into an existing directory. Which means that doing: mkdir foo git clone will-fail foo ends up deleting foo. This isn't a huge catastrophe, since by definition foo must be empty. But it's somewhat confusing; we should leave the filesystem as we found it. Because we know that the only directory we'll write into is an empty one, we can handle this case by just passing the KEEP_TOPLEVEL flag to our recursive delete (if we could write into populated directories, we'd have to keep track of what we wrote and what we did not, which would be much harder). Note that we need to handle the work-tree and git-dir separately, though, as only one might exist (and the new tests in t5600 cover all cases). Reported-by: Stephan Janssen <sjanssen@you-get.com> Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-01-03clone: factor out dir_exists() helperJeff King1-3/+8
Two parts of git-clone's setup logic check whether a directory exists, and they both call stat directly with the same scratch "struct stat" buffer. Let's pull that into a helper, which has a few advantages: - it makes the purpose of the stat calls more obvious - it makes it clear that we don't care about the information in "buf" remaining valid - if we later decide to make the check more robust (e.g., complaining about non-directories), we can do it in one place Note that we could just use file_exists() for this, which has identical code. But we specifically care about directories, so this future-proofs us against that function later getting more picky about seeing actual files. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-28Merge branch 'sb/describe-blob'Junio C Hamano1-27/+94
"git describe" was taught to dig trees deeper to find a <commit-ish>:<path> that refers to a given blob object. * sb/describe-blob: builtin/describe.c: describe a blob builtin/describe.c: factor out describe_commit builtin/describe.c: print debug statements earlier builtin/describe.c: rename `oid` to avoid variable shadowing revision.h: introduce blob/tree walking in order of the commits list-objects.c: factor out traverse_trees_and_blobs t6120: fix typo in test name
2017-12-28Merge branch 'hi/merge-verify-sig-config'Junio C Hamano1-0/+2
"git merge" learned to pay attention to merge.verifySignatures configuration variable and pretend as if '--verify-signatures' option was given from the command line. * hi/merge-verify-sig-config: t5573, t7612: clean up after unexpected success of 'pull' and 'merge' t: add tests for pull --verify-signatures merge: add config option for verifySignatures
2017-12-28Merge branch 'jt/transport-hide-vtable'Junio C Hamano2-6/+0
Code clean-up. * jt/transport-hide-vtable: transport: make transport vtable more private clone, fetch: remove redundant transport check
2017-12-28Merge branch 'cc/skip-to-optional-val'Junio C Hamano1-8/+3
Introduce a helper to simplify code to parse a common pattern that expects either "--key" or "--key=<something>". * cc/skip-to-optional-val: t4045: reindent to make helpers readable diff: add tests for --relative without optional prefix value diff: use skip_to_optional_arg_default() in parsing --relative diff: use skip_to_optional_arg_default() diff: use skip_to_optional_arg() index-pack: use skip_to_optional_arg() git-compat-util: introduce skip_to_optional_arg()
2017-12-28checkout: avoid using the rev_info flag leak_pendingRené Scharfe1-12/+1
The leak_pending flag is so awkward to use that multiple comments had to be added around each occurrence. We only use it for remembering the commits whose marks we have to clear after checking if the old HEAD is detached. This is easy, though: We need to do that for the old commit, the new one -- and for all refs. Don't bother tracking exactly which commits need their flags cleared, just nuke all we have in-core. This change is safe because refs can point at anything, so other program parts can't depend on any kept flags anyway. And since all refs are loaded we have to basically deal with all commits anyway, so performance should not be negatively impacted. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-27Use DIFF_DETECT_RENAME for detect_rename assignmentsNguyễn Thái Ngọc Duy1-1/+1
This field can have two values (2 for copy). Use this name instead for clarity. Many places have already used this constant. Note, the detect_rename assignments in merge-recursive.c remain unchanged because it's actually a boolean there. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-27Merge branch 'ot/pretty'Junio C Hamano3-3/+3
Code clean-up. * ot/pretty: format: create docs for pretty.h format: create pretty.h file
2017-12-27Merge branch 'bw/submodule-sans-cache-compat'Junio C Hamano3-3/+5
Code clean-up. * bw/submodule-sans-cache-compat: submodule: convert get_next_submodule to not rely on the_index submodule: used correct index in is_staging_gitmodules_ok submodule: convert stage_updated_gitmodules to take a struct index_state
2017-12-27Merge branch 'es/clone-shared-worktree'Junio C Hamano1-1/+2
"git clone --shared" to borrow from a (secondary) worktree did not work, even though "git clone --local" did. Both are now accepted. * es/clone-shared-worktree: clone: support 'clone --shared' from a worktree
2017-12-27Merge branch 'jt/decorate-api'Junio C Hamano1-1/+1
A few structures and variables that are implementation details of the decorate API have been renamed and then the API got documented better. * jt/decorate-api: decorate: clean up and document API
2017-12-27Merge branch 'ks/branch-cleanup'Junio C Hamano2-7/+14
Code clean-up. * ks/branch-cleanup: builtin/branch: strip refs/heads/ using skip_prefix branch: update warning message shown when copying a misnamed branch branch: group related arguments of create_branch() branch: improve documentation and naming of create_branch() parameters
2017-12-27Merge branch 'rs/fmt-merge-msg-string-leak-fix'Junio C Hamano1-1/+2
Leakfix. * rs/fmt-merge-msg-string-leak-fix: fmt-merge-msg: avoid leaking strbuf in shortlog()
2017-12-27Merge branch 'rs/am-builtin-leakfix'Junio C Hamano1-3/+7
Leakfix. * rs/am-builtin-leakfix: am: release strbuf after use in split_mail_mbox()
2017-12-27Merge branch 'es/worktree-checkout-hook'Junio C Hamano1-6/+16
"git worktree add" learned to run the post-checkout hook, just like "git checkout" does, after the initial checkout. * es/worktree-checkout-hook: worktree: invoke post-checkout hook (unless --no-checkout)
2017-12-27Merge branch 'lb/rebase-i-short-command-names'Junio C Hamano1-10/+19
With a configuration variable rebase.abbreviateCommands set, "git rebase -i" produces the todo list with a single-letter command names. * lb/rebase-i-short-command-names: sequencer.c: drop 'const' from function return type t3404: add test case for abbreviated commands rebase -i: learn to abbreviate command names rebase -i -x: add exec commands via the rebase--helper rebase -i: update functions to use a flags parameter rebase -i: replace reference to sha1 with oid rebase -i: refactor transform_todo_ids rebase -i: set commit to null in exec commands Documentation: use preferred name for the 'todo list' script Documentation: move rebase.* configs to new file
2017-12-27Merge branch 'jh/object-filtering'Junio C Hamano2-3/+173
In preparation for implementing narrow/partial clone, the object walking machinery has been taught a way to tell it to "filter" some objects from enumeration. * jh/object-filtering: rev-list: support --no-filter argument list-objects-filter-options: support --no-filter list-objects-filter-options: fix 'keword' typo in comment pack-objects: add list-objects filtering rev-list: add list-objects filtering support list-objects: filter objects in traverse_commit_list oidset: add iterator methods to oidset oidmap: add oidmap iterator methods dir: allow exclusions from blob in addition to file
2017-12-27describe: prepend "tags/" when describing tags with embedded nameDaniel Knittl-Frank1-2/+5
The man page of the "git describe" command explains the expected output when using the --all option, i.e. the full reference path is shown, including heads/ or tags/ prefix. When 212945d4a85dfa172ea55ec73b1d830ef2d8582f ("Teach git-describe to verify annotated tag names before output") made Git favor the embedded name of annotated tags, it accidentally changed the output format when the --all flag is given, only printing the tag's name without the prefix. Check if --all was specified and re-add the "tags/" prefix for this special case to fix the regresssion. Signed-off-by: Daniel Knittl-Frank <knittl89+git@googlemail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-22commit: add support for --fixup <commit> -m"<extra message>"Ævar Arnfjörð Bjarmason1-3/+5
Add support for supplying the -m option with --fixup. Doing so has errored out ever since --fixup was introduced. Before this, the only way to amend the fixup message while committing was to use --edit and amend it in the editor. The use-case for this feature is one of: * Leaving a quick note to self when creating a --fixup commit when it's not self-evident why the commit should be squashed without a note into another one. * (Ab)using the --fixup feature to "fix up" commits that have already been pushed to a branch that doesn't allow non-fast-forwards, i.e. just noting "this should have been part of that other commit", and if the history ever got rewritten in the future the two should be combined. In such a case you might want to leave a small message, e.g. "forgot this part, which broke XYZ". With this, --fixup <commit> -m"More" -m"Details" will result in a commit message like: !fixup <subject of <commit>> More Details The reason the test being added here seems to squash "More" at the end of the subject line of the commit being fixed up is because the test code is using "%s%b" so the body immediately follows the subject, it's not a bug in this code, and other tests t7500-commit.sh do the same thing. When the --fixup option was initially added the "Option -m cannot be combined" error was expanded from -c, -C and -F to also include --fixup[1] Those options could also support combining with -m, but given what they do I can't think of a good use-case for doing that, so I have not made the more invasive change of splitting up the logic in commit.c to first act on those, and then on -m options. 1. d71b8ba7c9 ("commit: --fixup option for use with rebase --autosquash", 2010-11-02) Helped-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-22Merge branch 'ew/empty-merge-with-dirty-index-maint' into ↵Junio C Hamano1-37/+0
ew/empty-merge-with-dirty-index * ew/empty-merge-with-dirty-index-maint: merge-recursive: avoid incorporating uncommitted changes in a merge move index_has_changes() from builtin/am.c to merge.c for reuse t6044: recursive can silently incorporate dirty changes in a merge
2017-12-22move index_has_changes() from builtin/am.c to merge.c for reuseElijah Newren1-37/+0
index_has_changes() is a function we want to reuse outside of just am, making it also available for merge-recursive and merge-ort. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-19Merge branch 'ar/unconfuse-three-dots'Junio C Hamano1-2/+8
Ancient part of codebase still shows dots after an abbreviated object name just to show that it is not a full object name, but these ellipses are confusing to people who newly discovered Git who are used to seeing abbreviated object names and find them confusing with the range syntax. * ar/unconfuse-three-dots: t2020: test variations that matter t4013: test new output from diff --abbrev --raw diff: diff_aligned_abbrev: remove ellipsis after abbreviated SHA-1 value t4013: prepare for upcoming "diff --raw --abbrev" output format change checkout: describe_detached_head: remove ellipsis after committish print_sha1_ellipsis: introduce helper Documentation: user-manual: limit usage of ellipsis Documentation: revisions: fix typo: "three dot" ---> "three-dot" (in line with "two-dot").
2017-12-19Merge branch 'tg/worktree-create-tracking'Junio C Hamano2-41/+46
The way "git worktree add" determines what branch to create from where and checkout in the new worktree has been updated a bit. * tg/worktree-create-tracking: add worktree.guessRemote config option worktree: add --guess-remote flag to add subcommand worktree: make add <path> <branch> dwim worktree: add --[no-]track option to the add subcommand worktree: add can be created from any commit-ish checkout: factor out functions to new lib file
2017-12-19Merge branch 'bw/submodule-config-cleanup'Junio C Hamano1-0/+2
Recent update to the submodule configuration code broke "diff-tree" by accidentally stopping to read from the index upfront. * bw/submodule-config-cleanup: diff-tree: read the index so attribute checks work in bare repositories
2017-12-19Merge branch 'bw/pathspec-match-submodule-boundary'Junio C Hamano1-0/+1
An v2.12-era regression in pathspec match logic, which made it look into submodule tree even when it is not desired, has been fixed. * bw/pathspec-match-submodule-boundary: pathspec: only match across submodule boundaries when requested
2017-12-19builtin/describe.c: describe a blobStefan Beller1-5/+57
Sometimes users are given a hash of an object and they want to identify it further (ex.: Use verify-pack to find the largest blobs, but what are these? or [1]) When describing commits, we try to anchor them to tags or refs, as these are conceptually on a higher level than the commit. And if there is no ref or tag that matches exactly, we're out of luck. So we employ a heuristic to make up a name for the commit. These names are ambiguous, there might be different tags or refs to anchor to, and there might be different path in the DAG to travel to arrive at the commit precisely. When describing a blob, we want to describe the blob from a higher layer as well, which is a tuple of (commit, deep/path) as the tree objects involved are rather uninteresting. The same blob can be referenced by multiple commits, so how we decide which commit to use? This patch implements a rather naive approach on this: As there are no back pointers from blobs to commits in which the blob occurs, we'll start walking from any tips available, listing the blobs in-order of the commit and once we found the blob, we'll take the first commit that listed the blob. For example git describe --tags v0.99:Makefile conversion-901-g7672db20c2:Makefile tells us the Makefile as it was in v0.99 was introduced in commit 7672db20. The walking is performed in reverse order to show the introduction of a blob rather than its last occurrence. [1] https://stackoverflow.com/questions/223678/which-commit-has-this-blob Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-14clone, fetch: remove redundant transport checkJonathan Tan2-6/+0
Prior to commit a2d725b7bdf7 ("Use an external program to implement fetching with curl", 2009-08-05), if Git was compiled with NO_CURL, the get_refs_list and fetch methods in struct transport might not be populated, hence the checks in clone and fetch. After that commit, all transports populate get_refs_list and fetch, making the checks in clone and fetch redundant. Remove those checks. Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-13Merge branch 'pc/submodule-helper'Junio C Hamano1-1/+1
A message fix. * pc/submodule-helper: submodule--helper.c: i18n: add a missing space in message
2017-12-13Merge branch 'ra/decorate-limit-refs'Junio C Hamano1-1/+9
The tagnames "git log --decorate" uses to annotate the commits can now be limited to subset of available refs with the two additional options, --decorate-refs[-exclude]=<pattern>. * ra/decorate-limit-refs: log: add option to choose which refs to decorate
2017-12-13Merge branch 'bc/hash-algo'Junio C Hamano4-4/+4
An infrastructure to define what hash function is used in Git is introduced, and an effort to plumb that throughout various codepaths has been started. * bc/hash-algo: repository: fix a sparse 'using integer as NULL pointer' warning Switch empty tree and blob lookups to use hash abstraction Integrate hash algorithm support with repo setup Add structure representing hash algorithm setup: expose enumerated repo info
2017-12-12submodule: convert get_next_submodule to not rely on the_indexBrandon Williams1-1/+3
Instead of implicitly relying on the global 'the_index', convert 'get_next_submodule()' to use the index of the repository stored in the callback data 'struct submodule_parallel_fetch'. Since this removes the last user of the index compatibility macros, define 'NO_THE_INDEX_COMPATIBILITY_MACROS' to prevent future users of these macros in submodule.c. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-12submodule: convert stage_updated_gitmodules to take a struct index_stateBrandon Williams2-2/+2
Signed-off-by: Brandon Williams <bmwill@google.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>
2017-12-12format: create pretty.h fileOlga Telezhnaya3-3/+3
Create header for pretty.c to make formatting interface more structured. This is a middle point, this file would be merged further with other files which contain formatting stuff. Signed-off-by: Olga Telezhnaia <olyatelezhnaya@gmail.com> Mentored-by: Christian Couder <christian.couder@gmail.com> Mentored by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-11index-pack: use skip_to_optional_arg()Christian Couder1-8/+3
Let's simplify index-pack option parsing using skip_to_optional_arg(). Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-11clone: support 'clone --shared' from a worktreeEric Sunshine1-1/+2
When worktree functionality was originally implemented, the possibility of 'clone --local' from within a worktree was overlooked, with the result that the location of the "objects" directory of the source repository was computed incorrectly, thus the objects could not be copied or hard-linked by the clone. This shortcoming was addressed by 744e469755 (clone: allow --local from a linked checkout, 2015-09-28). However, the related case of 'clone --shared' (despite being handled only a few lines away from the 'clone --local' case) was not fixed by 744e469755, with a similar result of the "objects" directory location being incorrectly computed for insertion into the 'alternates' file. Fix this. Reported-by: Marc-André Lureau <marcandre.lureau@gmail.com> Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-08decorate: clean up and document APIJonathan Tan1-1/+1
Improve the names of the identifiers in decorate.h, document them, and add an example of how to use these functions. The example is compiled and run as part of the test suite. Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-07builtin/branch: strip refs/heads/ using skip_prefixKaartic Sivaraam1-4/+11
Instead of hard-coding the offset strlen("refs/heads/") to skip the prefix "refs/heads/" use the skip_prefix() function which is more communicative and verifies that the string actually starts with that prefix. Signed-off-by: Kaartic Sivaraam <kaartic.sivaraam@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-07branch: update warning message shown when copying a misnamed branchKaartic Sivaraam1-1/+1
When a user tries to rename a branch that has a "bad name" (e.g., starts with a '-') then we warn them that the misnamed branch has been renamed "away". A similar message is shown when trying to create a copy of a misnamed branch even though it doesn't remove the misnamed branch. This is not correct and may confuse the user. So, update the warning message shown to be more precise that only a copy of the misnamed branch has been created. It's better to show the warning message than not showing it at all as it makes the user aware of the presence of a misnamed branch. Signed-off-by: Kaartic Sivaraam <kaartic.sivaraam@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-07branch: group related arguments of create_branch()Kaartic Sivaraam2-2/+2
39bd6f726 (Allow checkout -B <current-branch> to update the current branch, 2011-11-26) added 'clobber_head' (now, 'clobber_head_ok') "before" 'track' as 'track' was closely related 'clobber_head' for the purpose the commit wanted to achieve. Looking from the perspective of how the arguments are used it turns out that 'clobber_head' is more related to 'force' than it is to 'track'. So, re-order the arguments to keep the related arguments close to each other. Signed-off-by: Kaartic Sivaraam <kaartic.sivaraam@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-07worktree: invoke post-checkout hook (unless --no-checkout)Eric Sunshine1-6/+16
git-clone and git-checkout both invoke the post-checkout hook following a successful checkout, yet git-worktree neglects to do so even though it too "checks out" the worktree. Fix this oversight. Implementation note: The newly-created worktree may reference a branch or be detached. In the latter case, a commit lookup is performed, though the result is used only in a boolean sense to (a) determine if the commit actually exists, and (b) assign either the branch name or commit ID to HEAD. Since the post-commit hook needs to know the ID of the checked-out commit, the lookup now needs to be done in all cases, rather than only when detached. Consequently, a new boolean is needed to handle (b) since the lookup result itself can no longer perform that role. Reported-by: Matthew K Gumbel <matthew.k.gumbel@intel.com> Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-07fmt-merge-msg: avoid leaking strbuf in shortlog()René Scharfe1-1/+2
Use string_list_append_nodup() instead of string_list_append() to hand over ownership of a detached strbuf and thus avoid leaking its memory. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-07am: release strbuf after use in split_mail_mbox()René Scharfe1-3/+7
Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-06diff-tree: read the index so attribute checks work in bare repositoriesBrandon Williams1-0/+2
A regression was introduced in 557a5998d (submodule: remove gitmodules_config, 2017-08-03) to how attribute processing was handled in bare repositories when running the diff-tree command. By default the attribute system will first try to read ".gitattribute" files from the working tree and then falls back to reading them from the index if there isn't a copy checked out in the worktree. Prior to 557a5998d the index was read as a side effect of the call to 'gitmodules_config()' which ensured that the index was already populated before entering the attribute subsystem. Since the call to 'gitmodules_config()' was removed the index is no longer being read so when the attribute system tries to read from the in-memory index it doesn't find any ".gitattribute" entries effectively ignoring any configured attributes. Fix this by explicitly reading the index during the setup of diff-tree. Reported-by: Ben Boeckel <ben.boeckel@kitware.com> Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-06add worktree.guessRemote config optionThomas Gummerer1-2/+12
Some users might want to have the --guess-remote option introduced in the previous commit on by default, so they don't have to type it out every time they create a new worktree. Add a config option worktree.guessRemote that allows users to configure the default behaviour for themselves. Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-06worktree: add --guess-remote flag to add subcommandThomas Gummerer1-0/+10
Currently 'git worktree add <path>' creates a new branch named after the basename of the <path>, that matches the HEAD of whichever worktree we were on when calling "git worktree add <path>". It's sometimes useful to have 'git worktree add <path> behave more like the dwim machinery in 'git checkout <new-branch>', i.e. check if the new branch name, derived from the basename of the <path>, uniquely matches the branch name of a remote-tracking branch, and if so check out that branch and set the upstream to the remote-tracking branch. Add a new --guess-remote option that enables exactly that behaviour. Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-06Merge branch 'bw/protocol-v1'Junio C Hamano1-0/+17
A new mechanism to upgrade the wire protocol in place is proposed and demonstrated that it works with the older versions of Git without harming them. * bw/protocol-v1: Documentation: document Extra Parameters ssh: introduce a 'simple' ssh variant i5700: add interop test for protocol transition http: tell server that the client understands v1 connect: tell server that the client understands v1 connect: teach client to recognize v1 server response upload-pack, receive-pack: introduce protocol version 1 daemon: recognize hidden request arguments protocol: introduce protocol extension mechanisms pkt-line: add packet_write function connect: in ref advertisement, shallows are last
2017-12-06Merge branch 'rd/doc-notes-prune-fix'Junio C Hamano1-1/+1
Doc update. * rd/doc-notes-prune-fix: notes: correct 'git notes prune' options to '[-n] [-v]'
2017-12-06Merge branch 'rd/man-prune-progress'Junio C Hamano1-1/+1
Doc update. * rd/man-prune-progress: prune: add "--progress" to man page and usage msg
2017-12-06Merge branch 'hm/config-parse-expiry-date'Junio C Hamano2-13/+11
"git config --expiry-date gc.reflogexpire" can read "2.weeks" from the configuration and report it as a timestamp, just like "--int" would read "1k" and report 1024, to help consumption by scripts. * hm/config-parse-expiry-date: config: add --expiry-date
2017-12-06Merge branch 'tz/notes-error-to-stderr' into maintJunio C Hamano1-4/+4
"git notes" sent its error message to its standard output stream, which was corrected. * tz/notes-error-to-stderr: notes: send "Automatic notes merge failed" messages to stderr
2017-12-06Merge branch 'sw/pull-ipv46-passthru' into maintJunio C Hamano1-0/+12
Contrary to the documentation, "git pull -4/-6 other-args" did not ask the underlying "git fetch" to go over IPv4/IPv6, which has been corrected. * sw/pull-ipv46-passthru: pull: pass -4/-6 option to 'git fetch'
2017-12-06checkout: describe_detached_head: remove ellipsis after committishAnn T Ropea1-2/+8
We do not want an ellipsis displayed following an (abbreviated) SHA-1 value. The days when this was necessary to indicate the truncation to lower-level Git commands and/or the user are bygone. However, to ease the transition, the ellipsis will still be printed if the user sets the environment variable GIT_PRINT_SHA1_ELLIPSIS to "yes". Correct documentation with respect to what describe_detached_head prints when GIT_PRINT_SHA1_ELLIPSIS is not set as indicated above. Add tests for the old and new behaviour. Signed-off-by: Ann T Ropea <bedhanger@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-05rebase -i: learn to abbreviate command namesLiam Beguin1-0/+3
`git rebase -i` already know how to interpret single-letter command names. Teach it to generate the todo list with these same abbreviated names. Based-on-patch-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Liam Beguin <liambeguin@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-05rebase -i -x: add exec commands via the rebase--helperLiam Beguin1-1/+6
Recent work on `git-rebase--interactive` aims to convert shell code to C. Even if this is most likely not a big performance enhancement, let's convert it too since a coming change to abbreviate command names requires it to be updated. Signed-off-by: Liam Beguin <liambeguin@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-05rebase -i: update functions to use a flags parameterLiam Beguin1-6/+7
Update functions used in the rebase--helper so that they take a generic 'flags' parameter instead of a growing list of options. Signed-off-by: Liam Beguin <liambeguin@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-05rebase -i: replace reference to sha1 with oidLiam Beguin1-5/+5
Since we are trying to abstract the hash function name elsewhere in the code base, lets use OID instead of SHA-1 in the rebase--helper too. Signed-off-by: Liam Beguin <liambeguin@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-05rebase -i: refactor transform_todo_idsLiam Beguin1-2/+2
The transform_todo_ids function is a little hard to read. Lets try to make it easier by using more of the strbuf API. Also, since we'll soon be adding command abbreviations, let's rename the function so it's name reflects that change. Signed-off-by: Liam Beguin <liambeguin@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-05rev-list: support --no-filter argumentJeff Hostetler1-0/+4
Teach rev-list to support --no-filter to override a previous --filter=<filter_spec> argument. This is to be consistent with commands that use OPT_PARSE macros. Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-05pathspec: only match across submodule boundaries when requestedBrandon Williams1-0/+1
Commit 74ed43711fd (grep: enable recurse-submodules to work on <tree> objects, 2016-12-16) taught 'tree_entry_interesting()' to be able to match across submodule boundaries in the presence of wildcards. This is done by performing literal matching up to the first wildcard and then punting to the submodule itself to perform more accurate pattern matching. Instead of introducing a new flag to request this behavior, commit 74ed43711fd overloaded the already existing 'recursive' flag in 'struct pathspec' to request this behavior. This leads to a bug where whenever any other caller has the 'recursive' flag set as well as a pathspec with wildcards that all submodules will be indicated as matches. One simple example of this is: git init repo cd repo git init submodule git -C submodule commit -m initial --allow-empty touch "[bracket]" git add "[bracket]" git commit -m bracket git add submodule git commit -m submodule git rev-list HEAD -- "[bracket]" Fix this by introducing the new flag 'recurse_submodules' in 'struct pathspec' and using this flag to determine if matches should be allowed to cross submodule boundaries. This fixes https://github.com/git-for-windows/git/issues/1371. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-28Merge branch 'ma/branch-list-paginate'Junio C Hamano1-0/+3
"git branch --list" learned to show its output through the pager by default when the output is going to a terminal, which is controlled by the pager.branch configuration variable. This is similar to a recent change to "git tag --list". * ma/branch-list-paginate: branch: change default of `pager.branch` to "on" branch: respect `pager.branch` in list-mode only t7006: add tests for how git branch paginates
2017-11-28Merge branch 'jc/branch-name-sanity'Junio C Hamano2-12/+9
"git branch" and "git checkout -b" are now forbidden from creating a branch whose name is "HEAD". * jc/branch-name-sanity: builtin/branch: remove redundant check for HEAD branch: correctly reject refs/heads/{-dash,HEAD} branch: split validate_new_branchname() into two branch: streamline "attr_only" handling in validate_new_branchname()
2017-11-27Merge branch 'sw/pull-ipv46-passthru'Junio C Hamano1-0/+12
Contrary to the documentation, "git pull -4/-6 other-args" did not ask the underlying "git fetch" to go over IPv4/IPv6, which has been corrected. * sw/pull-ipv46-passthru: pull: pass -4/-6 option to 'git fetch'
2017-11-27Merge branch 'tb/add-renormalize'Junio C Hamano1-2/+26
"git add --renormalize ." is a new and safer way to record the fact that you are correcting the end-of-line convention and other "convert_to_git()" glitches in the in-repository data. * tb/add-renormalize: add: introduce "--renormalize"
2017-11-27Merge branch 'tz/notes-error-to-stderr'Junio C Hamano1-4/+4
"git notes" sent its error message to its standard output stream, which was corrected. * tz/notes-error-to-stderr: notes: send "Automatic notes merge failed" messages to stderr
2017-11-27Merge branch 'ma/reduce-heads-leakfix' into maintJunio C Hamano5-22/+28
Leak fixes. * ma/reduce-heads-leakfix: reduce_heads: fix memory leaks builtin/merge-base: free commit lists
2017-11-27Merge branch 'ma/bisect-leakfix' into maintJunio C Hamano1-2/+1
Leak fixes. * ma/bisect-leakfix: bisect: fix memory leak when returning best element bisect: fix off-by-one error in `best_bisection_sorted()` bisect: fix memory leak in `find_bisection()` bisect: change calling-convention of `find_bisection()`
2017-11-27worktree: make add <path> <branch> dwimThomas Gummerer1-0/+16
Currently 'git worktree add <path> <branch>', errors out when 'branch' is not a local branch. It has no additional dwim'ing features that one might expect. Make it behave more like 'git checkout <branch>' when the branch doesn't exist locally, but a remote tracking branch uniquely matches the desired branch name, i.e. create a new branch from the remote tracking branch and set the upstream to the remote tracking branch. As 'git worktree add' currently just dies in this situation, there are no backwards compatibility worries when introducing this feature. Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-27worktree: add --[no-]track option to the add subcommandThomas Gummerer1-0/+8
Currently 'git worktree add' sets up tracking branches if '<branch>' is a remote tracking branch, and doesn't set them up otherwise, as is the default for 'git branch'. This may or may not be what the user wants. Allow overriding this behaviour with a --[no-]track flag that gets passed through to 'git branch'. We already respect branch.autoSetupMerge, as 'git worktree' just calls 'git branch' internally. Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-27checkout: factor out functions to new lib fileThomas Gummerer1-40/+1
Factor the functions out, so they can be re-used from other places. In particular these functions will be re-used in builtin/worktree.c to make git worktree add dwim more. While there add some docs to the function. Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-26submodule--helper.c: i18n: add a missing space in messageJean-Noel Avila1-1/+1
The message spans over 2 lines but the C concatenation does not add the needed space between the two lines. Signed-off-by: Jean-Noel Avila <jn.avila@free.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-22pack-objects: add list-objects filteringJeff Hostetler1-1/+63
Teach pack-objects to use the filtering provided by the traverse_commit_list_filtered() interface to omit unwanted objects from the resulting packfile. Filtering requires the use of the "--stdout" option. Add t5317 test. In the future, we will introduce a "partial clone" mechanism wherein an object in a repo, obtained from a remote, may reference a missing object that can be dynamically fetched from that remote once needed. This "partial clone" mechanism will have a way, sometimes slow, of determining if a missing link is one of the links expected to be produced by this mechanism. This patch introduces handling of missing objects to help debugging and development of the "partial clone" mechanism, and once the mechanism is implemented, for a power user to perform operations that are missing-object aware without incurring the cost of checking if a missing link is expected. Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com> Reviewed-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-22rev-list: add list-objects filtering supportJeff Hostetler1-2/+106
Teach rev-list to use the filtering provided by the traverse_commit_list_filtered() interface to omit unwanted objects from the result. Object filtering is only allowed when one of the "--objects*" options are used. When the "--filter-print-omitted" option is used, the omitted objects are printed at the end. These are marked with a "~". This option can be combined with "--quiet" to get a list of just the omitted objects. Add t6112 test. In the future, we will introduce a "partial clone" mechanism wherein an object in a repo, obtained from a remote, may reference a missing object that can be dynamically fetched from that remote once needed. This "partial clone" mechanism will have a way, sometimes slow, of determining if a missing link is one of the links expected to be produced by this mechanism. This patch introduces handling of missing objects to help debugging and development of the "partial clone" mechanism, and once the mechanism is implemented, for a power user to perform operations that are missing-object aware without incurring the cost of checking if a missing link is expected. Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com> Reviewed-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-22log: add option to choose which refs to decorateRafael Ascensão1-1/+9
When `log --decorate` is used, git will decorate commits with all available refs. While in most cases this may give the desired effect, under some conditions it can lead to excessively verbose output. Introduce two command line options, `--decorate-refs=<pattern>` and `--decorate-refs-exclude=<pattern>` to allow the user to select which refs are used in decoration. When "--decorate-refs=<pattern>" is given, only the refs that match the pattern are used in decoration. The refs that match the pattern when "--decorate-refs-exclude=<pattern>" is given, are never used in decoration. These options follow the same convention for mixing negative and positive patterns across the system, assuming that the inclusive default is to match all refs available. (1) if there is no positive pattern given, pretend as if an inclusive default positive pattern was given; (2) for each candidate, reject it if it matches no positive pattern, or if it matches any one of the negative patterns. The rules for what is considered a match are slightly different from the rules used elsewhere. Commands like `log --glob` assume a trailing '/*' when glob chars are not present in the pattern. This makes it difficult to specify a single ref. On the other hand, commands like `describe --match --all` allow specifying exact refs, but do not have the convenience of allowing "shorthand refs" like 'refs/heads' or 'heads' to refer to 'refs/heads/*'. The commands introduced in this patch consider a match if: (a) the pattern contains globs chars, and regular pattern matching returns a match. (b) the pattern does not contain glob chars, and ref '<pattern>' exists, or if ref exists under '<pattern>/' This allows both behaviours (allowing single refs and shorthand refs) yet remaining compatible with existent commands. Helped-by: Kevin Daudt <me@ikke.info> Helped-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Rafael Ascensão <rafa.almas@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-22notes: correct 'git notes prune' options to '[-n] [-v]'Robert P. J. Day1-1/+1
Currently, 'git notes prune' in man page and usage message incorrectly lists options as '[-n | -v]', rather than '[-n] [-v]'. Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-22prune: add "--progress" to man page and usage msgRobert P. J. Day1-1/+1
Add mention of git prune's "--progress" option to the SYNOPSIS and DESCRIPTION sections of the man page, and to the usage message of "git prune" itself. While we're here, move the explanation of "--" toward the end of the DESCRIPTION section, where it belongs. Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-21Merge branch 'bp/fsmonitor'Junio C Hamano2-3/+43
We learned to talk to watchman to speed up "git status" and other operations that need to see which paths have been modified. * bp/fsmonitor: fsmonitor: preserve utf8 filenames in fsmonitor-watchman log fsmonitor: read entirety of watchman output fsmonitor: MINGW support for watchman integration fsmonitor: add a performance test fsmonitor: add a sample integration script for Watchman fsmonitor: add test cases for fsmonitor extension split-index: disable the fsmonitor extension when running the split index test fsmonitor: add a test tool to dump the index extension update-index: add fsmonitor support to update-index ls-files: Add support in ls-files to display the fsmonitor valid bit fsmonitor: add documentation for the fsmonitor extension. fsmonitor: teach git to optionally utilize a file system monitor to speed up detecting new or changed files. update-index: add a new --force-write-index option preload-index: add override to enable testing preload-index bswap: add 64 bit endianness helper get_be64
2017-11-21pull: pass -4/-6 option to 'git fetch'Shuyu Wei1-0/+12
The -4/-6 option should be passed through to 'git fetch' to be consistent with the man page. Signed-off-by: Wei Shuyu <wsy@dogben.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-20branch: change default of `pager.branch` to "on"Martin Ågren1-1/+1
This is similar to ff1e72483 (tag: change default of `pager.tag` to "on", 2017-08-02) and is safe now that we do not consider `pager.branch` at all when we are not listing branches. This change will help with listing many branches, but will not hurt users of `git branch --edit-description` as it would have before the previous commit. Signed-off-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-20branch: respect `pager.branch` in list-mode onlyMartin Ågren1-0/+3
Similar to de121ffe5 (tag: respect `pager.tag` in list-mode only, 2017-08-02), use the DELAY_PAGER_CONFIG-mechanism to only respect `pager.branch` when we are listing branches. We have two possibilities of generalizing what that earlier commit made to `git tag`. One is to interpret, e.g., --set-upstream-to as "it does not use an editor, so we should page". Another, the one taken by this commit, is to say "it does not list, so let's not page". That is in line with the approach of the series on `pager.tag` and in particular the wording in Documentation/git-tag.txt, which this commit reuses for git-branch.txt. This fixes the failing test added in the previous commit. Also adapt the test for whether `git branch --set-upstream-to` respects `pager.branch`. Signed-off-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-18config: add --expiry-dateHaaris Mehmood2-13/+11
Add --expiry-date as a data-type for config files when 'git config --get' is used. This will return any relative or fixed dates from config files as timestamps. This is useful for scripts (e.g. gc.reflogexpire) that work with timestamps so that '2.weeks' can be converted to a format acceptable by those scripts/functions. Following the convention of git_config_pathname(), move the helper function required for this feature from builtin/reflog.c to builtin/config.c where other similar functions exist (e.g. for --bool or --path), and match the order of parameters with other functions (i.e. output pointer as first parameter). Signed-off-by: Haaris Mehmood <hsed@unimetic.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-17add: introduce "--renormalize"Torsten Bögershausen1-2/+26
Make it safer to normalize the line endings in a repository. Files that had been commited with CRLF will be commited with LF. The old way to normalize a repo was like this: # Make sure that there are not untracked files $ echo "* text=auto" >.gitattributes $ git read-tree --empty $ git add . $ git commit -m "Introduce end-of-line normalization" The user must make sure that there are no untracked files, otherwise they would have been added and tracked from now on. The new "add --renormalize" does not add untracked files: $ echo "* text=auto" >.gitattributes $ git add --renormalize . $ git commit -m "Introduce end-of-line normalization" Note that "git add --renormalize <pathspec>" is the short form for "git add -u --renormalize <pathspec>". While at it, document that the same renormalization may be needed, whenever a clean filter is added or changed. Helped-By: Junio C Hamano <gitster@pobox.com> Signed-off-by: Torsten Bögershausen <tboegi@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-16builtin/describe.c: factor out describe_commitStefan Beller1-26/+37
Factor out describing commits into its own function `describe_commit`, which will put any output to stdout into a strbuf, to be printed afterwards. As the next patch will teach Git to describe blobs using a commit and path, this refactor will make it easy to reuse the code describing commits. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-16builtin/describe.c: print debug statements earlierStefan Beller1-1/+4
When debugging, print the received argument at the start of the function instead of in the middle. This ensures that the received argument is printed in all code paths, and also allows a subsequent refactoring to not need to move the "arg" parameter. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-16builtin/describe.c: rename `oid` to avoid variable shadowingStefan Beller1-4/+4
The function `describe` has already a variable named `oid` declared at the beginning of the function for an object id. Do not shadow that variable with a pointer to an object id. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-15Merge branch 'bp/read-index-from-skip-verification'Junio C Hamano1-0/+1
Drop (perhaps overly cautious) sanity check before using the index read from the filesystem at runtime. * bp/read-index-from-skip-verification: read_index_from(): speed index loading by skipping verification of the entry order
2017-11-15Merge branch 'rd/bisect-view-is-visualize'Junio C Hamano1-1/+1
Doc and message updates to teach users "bisect view" is a synonym for "bisect visualize". * rd/bisect-view-is-visualize: bisect: mention "view" as an alternative to "visualize"
2017-11-15Merge branch 'ma/reduce-heads-leakfix'Junio C Hamano5-22/+28
Leak fixes. * ma/reduce-heads-leakfix: reduce_heads: fix memory leaks builtin/merge-base: free commit lists
2017-11-15Merge branch 'mh/tidy-ref-update-flags'Junio C Hamano8-12/+12
Code clean-up in refs API implementation. * mh/tidy-ref-update-flags: refs: update some more docs to use "oid" rather than "sha1" write_packed_entry(): take `object_id` arguments refs: rename constant `REF_ISPRUNING` to `REF_IS_PRUNING` refs: rename constant `REF_NODEREF` to `REF_NO_DEREF` refs: tidy up and adjust visibility of the `ref_update` flags ref_transaction_add_update(): remove a check ref_transaction_update(): die on disallowed flags prune_ref(): call `ref_transaction_add_update()` directly files_transaction_prepare(): don't leak flags to packed transaction
2017-11-15Merge branch 'ma/bisect-leakfix'Junio C Hamano1-2/+1
Leak fixes. * ma/bisect-leakfix: bisect: fix memory leak when returning best element bisect: fix off-by-one error in `best_bisection_sorted()` bisect: fix memory leak in `find_bisection()` bisect: change calling-convention of `find_bisection()`
2017-11-15Merge branch 'jc/check-ref-format-oor' into maintJunio C Hamano1-2/+4
"git check-ref-format --branch @{-1}" bit a "BUG()" when run outside a repository for obvious reasons; clarify the documentation and make sure we do not even try to expand the at-mark magic in such a case, but still call the validation logic for branch names. * jc/check-ref-format-oor: check-ref-format doc: --branch validates and expands <branch> check-ref-format --branch: strip refs/heads/ using skip_prefix check-ref-format --branch: do not expand @{...} outside repository
2017-11-15Merge branch 'bw/grep-recurse-submodules' into maintJunio C Hamano1-0/+2
A broken access to object databases in recent update to "git grep --recurse-submodules" has been fixed. * bw/grep-recurse-submodules: grep: take the read-lock when adding a submodule
2017-11-15Merge branch 'ao/check-resolve-ref-unsafe-result' into maintJunio C Hamano1-0/+2
"git commit", after making a commit, did not check for errors when asking on what branch it made the commit, which has been correted. * ao/check-resolve-ref-unsafe-result: commit: check result of resolve_ref_unsafe
2017-11-15builtin/branch: remove redundant check for HEADKaartic Sivaraam1-3/+0
The lower level code has been made to handle this case for the sake of consistency. This has made this check redundant. So, remove the redundant check. Signed-off-by: Kaartic Sivaraam <kaartic.sivaraam@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-15notes: send "Automatic notes merge failed" messages to stderrTodd Zullinger1-4/+4
All other error messages from notes use stderr. Do the same when alerting users of an unresolved notes merge. Fix the output redirection in t3310 and t3320 as well. Previously, the tests directed output to a file, but stderr was either not captured or not sent to the file due to the order of the redirection operators. Signed-off-by: Todd Zullinger <tmz@pobox.com> Acked-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-13Merge branch 'jm/status-ignored-files-list'Junio C Hamano1-6/+25
The set of paths output from "git status --ignored" was tied closely with its "--untracked=<mode>" option, but now it can be controlled more flexibly. Most notably, a directory that is ignored because it is listed to be ignored in the ignore/exclude mechanism can be handled differently from a directory that ends up to be ignored only because all files in it are ignored. * jm/status-ignored-files-list: status: test ignored modes status: document options to show matching ignored files status: report matching ignored and normal untracked status: add option to show ignored files differently
2017-11-13Switch empty tree and blob lookups to use hash abstractionbrian m. carlson4-4/+4
Switch the uses of empty_tree_oid and empty_blob_oid to use the current_hash abstraction that represents the current hash algorithm in use. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-13bisect: mention "view" as an alternative to "visualize"Robert P. J. Day1-1/+1
Tweak a small number of files to mention "view" as an alternative to "visualize". Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-09Merge branch 'bw/diff-opt-impl-to-bitfields'Junio C Hamano10-37/+37
A single-word "unsigned flags" in the diff options is being split into a structure with many bitfields. * bw/diff-opt-impl-to-bitfields: diff: make struct diff_flags members lowercase diff: remove DIFF_OPT_CLR macro diff: remove DIFF_OPT_SET macro diff: remove DIFF_OPT_TST macro diff: remove touched flags diff: add flag to indicate textconv was set via cmdline diff: convert flags to be stored in bitfields add, reset: use DIFF_OPT_SET macro to set a diff flag
2017-11-08reduce_heads: fix memory leaksMartin Ågren5-5/+11
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>
2017-11-08builtin/merge-base: free commit listsMartin Ågren1-18/+18
In several functions, we iterate through a commit list by assigning `result = result->next`. As a consequence, we lose the original pointer and eventually leak the list. Rewrite the loops so that we keep the original pointers, then call `free_commit_list()`. Various alternatives were considered: 1) Use `UNLEAK(result)` before the loop. Simple change, but not very pretty. These would definitely be new lows among our usages of UNLEAK. 2) Use `pop_commit()` when looping. Slightly less simple change, but it feels slightly preferable to first display the list, then free it. 3) As in this patch, but with `UNLEAK()` instead of freeing. We'd still go through all the trouble of refactoring the loop, and because it's not super-obvious that we're about to exit, let's just free the lists -- it probably doesn't affect the runtime much. In `handle_independent()` we can drop `result` while we're here and reuse the `revs`-variable instead. That matches several other users of `reduce_heads()`. The memory-leak that this hides will be addressed in the next commit. Signed-off-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-08read_index_from(): speed index loading by skipping verification of the entry ↵Ben Peart1-0/+1
order There is code in post_read_index_from() to catch out of order entries when reading an index file. This order verification is ~13% of the cost of every call to read_index_from(). Update check_ce_order() so that it skips this verification unless the "verify_ce_order" global variable is set. Teach fsck to force this verification. The effect can be seen using t/perf/p0002-read-cache.sh: Test HEAD HEAD~1 -------------------------------------------------------------------------------------- 0002.1: read_cache/discard_cache 1000 times 0.41(0.04+0.04) 0.50(0.00+0.10) +22.0% Signed-off-by: Ben Peart <benpeart@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-06Merge branch 'mp/push-pushoption-config'Junio C Hamano1-5/+21
The "--push-option=<string>" option to "git push" now defaults to a list of strings configured via push.pushOption variable. * mp/push-pushoption-config: builtin/push.c: add push.pushOption config
2017-11-06Merge branch 'jc/check-ref-format-oor'Junio C Hamano1-2/+4
"git check-ref-format --branch @{-1}" bit a "BUG()" when run outside a repository for obvious reasons; clarify the documentation and make sure we do not even try to expand the at-mark magic in such a case, but still call the validation logic for branch names. * jc/check-ref-format-oor: check-ref-format doc: --branch validates and expands <branch> check-ref-format --branch: strip refs/heads/ using skip_prefix check-ref-format --branch: do not expand @{...} outside repository
2017-11-06Merge branch 'bc/object-id'Junio C Hamano30-179/+179
Conversion from uchar[20] to struct object_id continues. * bc/object-id: (25 commits) refs/files-backend: convert static functions to object_id refs: convert read_raw_ref backends to struct object_id refs: convert peel_object to struct object_id refs: convert resolve_ref_unsafe to struct object_id worktree: convert struct worktree to object_id refs: convert resolve_gitlink_ref to struct object_id Convert remaining callers of resolve_gitlink_ref to object_id sha1_file: convert index_path and index_fd to struct object_id refs: convert reflog_expire parameter to struct object_id refs: convert read_ref_at to struct object_id refs: convert peel_ref to struct object_id builtin/pack-objects: convert to struct object_id pack-bitmap: convert traverse_bitmap_commit_list to object_id refs: convert dwim_log to struct object_id builtin/reflog: convert remaining unsigned char uses to object_id refs: convert dwim_ref and expand_ref to struct object_id refs: convert read_ref and read_ref_full to object_id refs: convert resolve_refdup and refs_resolve_refdup to struct object_id Convert check_connected to use struct object_id refs: update ref transactions to use struct object_id ...
2017-11-06Merge branch 'wk/pull-signoff'Junio C Hamano1-0/+6
"git pull" has been taught to accept "--[no-]signoff" option and pass it down to "git merge". * wk/pull-signoff: pull: pass --signoff/--no-signoff to "git merge"
2017-11-06Merge branch 'pc/submodule-helper'Junio C Hamano1-17/+256
GSoC. * pc/submodule-helper: submodule: port submodule subcommand 'status' from shell to C submodule--helper: introduce for_each_listed_submodule() submodule--helper: introduce get_submodule_displaypath()
2017-11-06Merge branch 'pb/bisect-helper'Junio C Hamano1-6/+131
An early part of piece-by-piece rewrite of "git bisect". * pb/bisect-helper: bisect--helper: `is_expected_rev` & `check_expected_revs` shell function in C t6030: explicitly test for bisection cleanup bisect--helper: `bisect_clean_state` shell function in C bisect--helper: `write_terms` shell function in C bisect--helper: rewrite `check_term_format` shell function in C bisect--helper: use OPT_CMDMODE instead of OPT_BOOL
2017-11-06Merge branch 'bw/grep-recurse-submodules'Junio C Hamano1-0/+2
A broken access to object databases in recent update to "git grep --recurse-submodules" has been fixed. * bw/grep-recurse-submodules: grep: take the read-lock when adding a submodule
2017-11-06Merge branch 'ao/check-resolve-ref-unsafe-result'Junio C Hamano1-0/+2
"git commit", after making a commit, did not check for errors when asking on what branch it made the commit, which has been correted. * ao/check-resolve-ref-unsafe-result: commit: check result of resolve_ref_unsafe
2017-11-06Merge branch 'jk/misc-resolve-ref-unsafe-fixes'Junio C Hamano1-1/+1
Some codepaths did not check for errors when asking what branch the HEAD points at, which have been fixed. * jk/misc-resolve-ref-unsafe-fixes: worktree: handle broken symrefs in find_shared_symref() log: handle broken HEAD in decoration check remote: handle broken symrefs test-ref-store: avoid passing NULL to printf
2017-11-06Merge branch 'jc/no-cmd-as-subroutine'Junio C Hamano2-13/+18
Calling cmd_foo() as if it is a general purpose helper function is a no-no. Correct two instances of such to set an example. * jc/no-cmd-as-subroutine: merge-ours: do not use cmd_*() as a subroutine describe: do not use cmd_*() as a subroutine
2017-11-06Merge branch 'ma/lockfile-fixes'Junio C Hamano8-45/+33
An earlier update made it possible to use an on-stack in-core lockfile structure (as opposed to having to deliberately leak an on-heap one). Many codepaths have been updated to take advantage of this new facility. * ma/lockfile-fixes: read_cache: roll back lock in `update_index_if_able()` read-cache: leave lock in right state in `write_locked_index()` read-cache: drop explicit `CLOSE_LOCK`-flag cache.h: document `write_locked_index()` apply: remove `newfd` from `struct apply_state` apply: move lockfile into `apply_state` cache-tree: simplify locking logic checkout-index: simplify locking logic tempfile: fix documentation on `delete_tempfile()` lockfile: fix documentation on `close_lock_file_gently()` treewide: prefer lockfiles on the stack sha1_file: do not leak `lock_file`
2017-11-06refs: rename constant `REF_NODEREF` to `REF_NO_DEREF`Michael Haggerty8-12/+12
Even after working with this code for years, I still see this constant name as "ref node ref". Rename it to make it's meaning clearer. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-06bisect: change calling-convention of `find_bisection()`Martin Ågren1-2/+1
This function takes a commit list and returns a commit list. The returned list is built by modifying the original list. Thus the caller should not use the original list again (and after the next commit fixes a memory leak, it must not). Change the function signature so that it takes a **list and has void return type. That should make it harder to misuse this function. While we're here, document this function. Signed-off-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-02grep: take the read-lock when adding a submoduleMartin Ågren1-0/+2
With --recurse-submodules, we add each submodule that we encounter to the list of alternate object databases. With threading, our changes to the list are not protected against races. Indeed, ThreadSanitizer reports a race when we call `add_to_alternates_memory()` around the same time that another thread is reading in the list through `read_sha1_file()`. Take the grep read-lock while adding the submodule. The lock is used to serialize uses of non-thread-safe parts of Git's API, including `read_sha1_file()`. Helped-by: Brandon Williams <bmwill@google.com> Signed-off-by: Martin Ågren <martin.agren@gmail.com> Acked-by: Brandon Williams <bmwill@google.com> Reviewed-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-01diff: make struct diff_flags members lowercaseBrandon Williams9-34/+34
Now that the flags stored in struct diff_flags are being accessed directly and not through macros, change all struct members from being uppercase to lowercase. This conversion is done using the following semantic patch: @@ expression E; @@ - E.RECURSIVE + E.recursive @@ expression E; @@ - E.TREE_IN_RECURSIVE + E.tree_in_recursive @@ expression E; @@ - E.BINARY + E.binary @@ expression E; @@ - E.TEXT + E.text @@ expression E; @@ - E.FULL_INDEX + E.full_index @@ expression E; @@ - E.SILENT_ON_REMOVE + E.silent_on_remove @@ expression E; @@ - E.FIND_COPIES_HARDER + E.find_copies_harder @@ expression E; @@ - E.FOLLOW_RENAMES + E.follow_renames @@ expression E; @@ - E.RENAME_EMPTY + E.rename_empty @@ expression E; @@ - E.HAS_CHANGES + E.has_changes @@ expression E; @@ - E.QUICK + E.quick @@ expression E; @@ - E.NO_INDEX + E.no_index @@ expression E; @@ - E.ALLOW_EXTERNAL + E.allow_external @@ expression E; @@ - E.EXIT_WITH_STATUS + E.exit_with_status @@ expression E; @@ - E.REVERSE_DIFF + E.reverse_diff @@ expression E; @@ - E.CHECK_FAILED + E.check_failed @@ expression E; @@ - E.RELATIVE_NAME + E.relative_name @@ expression E; @@ - E.IGNORE_SUBMODULES + E.ignore_submodules @@ expression E; @@ - E.DIRSTAT_CUMULATIVE + E.dirstat_cumulative @@ expression E; @@ - E.DIRSTAT_BY_FILE + E.dirstat_by_file @@ expression E; @@ - E.ALLOW_TEXTCONV + E.allow_textconv @@ expression E; @@ - E.TEXTCONV_SET_VIA_CMDLINE + E.textconv_set_via_cmdline @@ expression E; @@ - E.DIFF_FROM_CONTENTS + E.diff_from_contents @@ expression E; @@ - E.DIRTY_SUBMODULES + E.dirty_submodules @@ expression E; @@ - E.IGNORE_UNTRACKED_IN_SUBMODULES + E.ignore_untracked_in_submodules @@ expression E; @@ - E.IGNORE_DIRTY_SUBMODULES + E.ignore_dirty_submodules @@ expression E; @@ - E.OVERRIDE_SUBMODULE_CONFIG + E.override_submodule_config @@ expression E; @@ - E.DIRSTAT_BY_LINE + E.dirstat_by_line @@ expression E; @@ - E.FUNCCONTEXT + E.funccontext @@ expression E; @@ - E.PICKAXE_IGNORE_CASE + E.pickaxe_ignore_case @@ expression E; @@ - E.DEFAULT_FOLLOW_RENAMES + E.default_follow_renames Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-01diff: remove DIFF_OPT_CLR macroBrandon Williams1-1/+1
Remove the `DIFF_OPT_CLR` macro and instead set the flags directly. This conversion is done using the following semantic patch: @@ expression E; identifier fld; @@ - DIFF_OPT_CLR(&E, fld) + E.flags.fld = 0 @@ type T; T *ptr; identifier fld; @@ - DIFF_OPT_CLR(ptr, fld) + ptr->flags.fld = 0 Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-01diff: remove DIFF_OPT_SET macroBrandon Williams7-20/+20
Remove the `DIFF_OPT_SET` macro and instead set the flags directly. This conversion is done using the following semantic patch: @@ expression E; identifier fld; @@ - DIFF_OPT_SET(&E, fld) + E.flags.fld = 1 @@ type T; T *ptr; identifier fld; @@ - DIFF_OPT_SET(ptr, fld) + ptr->flags.fld = 1 Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-01diff: remove DIFF_OPT_TST macroBrandon Williams5-11/+11
Remove the `DIFF_OPT_TST` macro and instead access the flags directly. This conversion is done using the following semantic patch: @@ expression E; identifier fld; @@ - DIFF_OPT_TST(&E, fld) + E.flags.fld @@ type T; T *ptr; identifier fld; @@ - DIFF_OPT_TST(ptr, fld) + ptr->flags.fld Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-01diff: remove touched flagsBrandon Williams1-2/+0
Now that the set of parallel touched flags are no longer being used, remove them. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-01diff: add flag to indicate textconv was set via cmdlineBrandon Williams1-1/+1
git-show is unique in that it wants to use textconv by default except for when it is showing blobs. When asked to show a blob, show doesn't want to use textconv unless the user explicitly requested that it be used by providing the command line flag '--textconv'. Currently this is done by using a parallel set of 'touched' flags which get set every time a particular flag is set or cleared. In a future patch we want to eliminate this parallel set of flags so instead of relying on if the textconv flag has been touched, add a new flag 'TEXTCONV_SET_VIA_CMDLINE' which is only set if textconv is set to true via the command line. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-01diff: convert flags to be stored in bitfieldsBrandon Williams2-4/+6
We cannot add many more flags to the diff machinery due to the limitations of the number of flags that can be stored in a single unsigned int. In order to allow for more flags to be added to the diff machinery in the future this patch converts the flags to be stored in bitfields in 'struct diff_flags'. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-31add, reset: use DIFF_OPT_SET macro to set a diff flagBrandon Williams2-2/+2
Instead of explicitly setting the 'DIFF_OPT_OVERRIDE_SUBMODULE_CONFIG' flag, use the 'DIFF_OPT_SET' macro. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-31status: add option to show ignored files differentlyJameson Miller1-6/+25
Teach the status command more flexibility in how ignored files are reported. Currently, the reporting of ignored files and untracked files are linked. You cannot control how ignored files are reported independently of how untracked files are reported (i.e. `all` vs `normal`). This makes it impossible to show untracked files with the `all` option, but show ignored files with the `normal` option. This work 1) adds the ability to control the reporting of ignored files independently of untracked files and 2) introduces the concept of status reporting ignored paths that explicitly match an ignored pattern. There are 2 benefits to these changes: 1) if a consumer needs all untracked files but not all ignored files, there is a performance benefit to not scanning all contents of an ignored directory and 2) returning ignored files that explicitly match a path allow a consumer to make more informed decisions about when a status result might be stale. This commit implements --ignored=matching with --untracked-files=all. The following commit will implement --ignored=matching with --untracked=files=normal. As an example of where this flexibility could be useful is that our application (Visual Studio) runs the status command and presents the output. It shows all untracked files individually (e.g. using the '--untracked-files==all' option), and would like to know about which paths are ignored. It uses information about ignored paths to make decisions about when the status result might have changed. Additionally, many projects place build output into directories inside a repository's working directory (e.g. in "bin/" and "obj/" directories). Normal usage is to explicitly ignore these 2 directory names in the .gitignore file (rather than or in addition to the *.obj pattern).If an application could know that these directories are explicitly ignored, it could infer that all contents are ignored as well and make better informed decisions about files in these directories. It could infer that any changes under these paths would not affect the output of status. Additionally, there can be a significant performance benefit by avoiding scanning through ignored directories. When status is set to report matching ignored files, it has the following behavior. Ignored files and directories that explicitly match an exclude pattern are reported. If an ignored directory matches an exclude pattern, then the path of the directory is returned. If a directory does not match an exclude pattern, but all of its contents are ignored, then the contained files are reported instead of the directory. Signed-off-by: Jameson Miller <jamill@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-28Merge branch 'bc/object-id' into baseMichael Haggerty30-179/+179
2017-10-24builtin/push.c: add push.pushOption configMarius Paliga1-5/+21
Push options need to be given explicitly, via the command line as "git push --push-option <option>". Add the config option push.pushOption, which is a multi-valued option, containing push options that are sent by default. When push options are set in the lower-priority configulation file (e.g. /etc/gitconfig, or $HOME/.gitconfig), they can be unset later in the more specific repository config by the empty string. Add tests and update documentation as well. Signed-off-by: Marius Paliga <marius.paliga@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-23Merge branch 'jk/write-in-full-fix' into maintJunio C Hamano4-5/+4
Many codepaths did not diagnose write failures correctly when disks go full, due to their misuse of write_in_full() helper function, which have been corrected. * jk/write-in-full-fix: read_pack_header: handle signed/unsigned comparison in read result config: flip return value of store_write_*() notes-merge: use ssize_t for write_in_full() return value pkt-line: check write_in_full() errors against "< 0" convert less-trivial versions of "write_in_full() != len" avoid "write_in_full(fd, buf, len) != len" pattern get-tar-commit-id: check write_in_full() return against 0 config: avoid "write_in_full(fd, buf, len) < len" pattern
2017-10-23Merge branch 'rj/no-sign-compare' into maintJunio C Hamano1-2/+2
Many codepaths have been updated to squelch -Wsign-compare warnings. * rj/no-sign-compare: ALLOC_GROW: avoid -Wsign-compare warnings cache.h: hex2chr() - avoid -Wsign-compare warnings commit-slab.h: avoid -Wsign-compare warnings git-compat-util.h: xsize_t() - avoid -Wsign-compare warnings
2017-10-23Merge branch 'ma/ts-cleanups' into maintJunio C Hamano1-0/+6
Assorted bugfixes and clean-ups. * ma/ts-cleanups: ThreadSanitizer: add suppressions strbuf_setlen: don't write to strbuf_slopbuf pack-objects: take lock before accessing `remaining` convert: always initialize attr_action in convert_attrs
2017-10-23Merge branch 'jt/fast-export-copy-modify-fix' into maintJunio C Hamano1-14/+32
"git fast-export" with -M/-C option issued "copy" instruction on a path that is simultaneously modified, which was incorrect. * jt/fast-export-copy-modify-fix: fast-export: do not copy from modified file
2017-10-21remote: handle broken symrefsJeff King1-1/+1
It's possible for resolve_ref_unsafe() to return NULL with a REF_ISSYMREF flag if a symref points to a broken ref. In this case, the read_remote_branches() function will segfault passing the name to xstrdup(). This is hard to trigger in practice, since this function is used as a callback to for_each_ref(), which will skip broken refs in the first place (so it would have to be broken racily, or for us to see a transient filesystem error). If we see such a racy broken outcome let's treat it as "not a symref". This is exactly the same thing that would happen in the non-racy case (our function would not be called at all, as for_each_ref would skip the broken symref). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-21commit: check result of resolve_ref_unsafeAndrey Okoshkin1-0/+2
Add check of the resolved HEAD reference while printing of a commit summary. resolve_ref_unsafe() may return NULL pointer if underlying calls of lstat() or open() fail in files_read_raw_ref(). Such situation can be caused by race: file becomes inaccessible to this moment. Signed-off-by: Andrey Okoshkin <a.okoshkin@samsung.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-18Merge branch 'jk/ref-filter-colors-fix' into maintJunio C Hamano6-5/+8
This is the "theoretically more correct" approach of simply stepping back to the state before plumbing commands started paying attention to "color.ui" configuration variable. * jk/ref-filter-colors-fix: tag: respect color.ui config Revert "color: check color.ui in git_default_config()" Revert "t6006: drop "always" color config tests" Revert "color: make "always" the same as "auto" in config" color: make "always" the same as "auto" in config provide --color option for all ref-filter users t3205: use --color instead of color.branch=always t3203: drop "always" color test t6006: drop "always" color config tests t7502: use diff.noprefix for --verbose test t7508: use test_terminal for color output t3701: use test-terminal to collect color output t4015: prefer --color to -c color.diff=always test-terminal: set TERM=vt100
2017-10-18Merge branch 'sb/branch-avoid-repeated-strbuf-release' into maintJunio C Hamano1-2/+3
* sb/branch-avoid-repeated-strbuf-release: branch: reset instead of release a strbuf
2017-10-18Merge branch 'mg/timestamp-t-fix' into maintJunio C Hamano1-1/+1
A mismerge fix. * mg/timestamp-t-fix: name-rev: change ULONG_MAX to TIME_MAX
2017-10-18Merge branch 'jk/diff-blob' into maintJunio C Hamano1-2/+2
"git cat-file --textconv" started segfaulting recently, which has been corrected. * jk/diff-blob: cat-file: handle NULL object_context.path
2017-10-18Merge branch 'jk/describe-omit-some-refs' into maintJunio C Hamano1-3/+6
"git describe --match" learned to take multiple patterns in v2.13 series, but the feature ignored the patterns after the first one and did not work at all. This has been fixed. * jk/describe-omit-some-refs: describe: fix matching to actually match all patterns
2017-10-18Merge branch 'aw/gc-lockfile-fscanf-fix' into maintJunio C Hamano1-1/+1
"git gc" tries to avoid running two instances at the same time by reading and writing pid/host from and to a lock file; it used to use an incorrect fscanf() format when reading, which has been corrected. * aw/gc-lockfile-fscanf-fix: gc: call fscanf() with %<len>s, not %<len>c, when reading hostname
2017-10-18Merge branch 'rk/commit-tree-make-F-verbatim' into maintJunio C Hamano1-1/+0
Unlike "git commit-tree < file", "git commit-tree -F file" did not pass the contents of the file verbatim and instead completed an incomplete line at the end, if exists. The latter has been updated to match the behaviour of the former. * rk/commit-tree-make-F-verbatim: commit-tree: do not complete line in -F input
2017-10-18Merge branch 'mh/packed-ref-store-prep' into maintJunio C Hamano1-2/+2
Fix regression to "gitk --bisect" by a recent update. * mh/packed-ref-store-prep: rev-parse: don't trim bisect refnames
2017-10-18Merge branch 'jk/ref-filter-colors-fix'Junio C Hamano5-5/+6
This is the "theoretically more correct" approach of simply stepping back to the state before plumbing commands started paying attention to "color.ui" configuration variable. Let's run with this one. * jk/ref-filter-colors-fix: tag: respect color.ui config Revert "color: check color.ui in git_default_config()" Revert "t6006: drop "always" color config tests" Revert "color: make "always" the same as "auto" in config"
2017-10-18check-ref-format --branch: strip refs/heads/ using skip_prefixJunio C Hamano1-2/+4
The expansion returned from strbuf_check_branch_ref always starts with "refs/heads/" by construction, but there is nothing about its name or advertised API making that obvious. This command is used to process human-supplied input from the command line and is usually not the inner loop, so we can spare some cycles to be more defensive. Instead of hard-coding the offset strlen("refs/heads/") to skip, verify that the expansion actually starts with refs/heads/. [jn: split out from a larger patch, added explanation] Signed-off-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-17tag: respect color.ui configJeff King1-1/+1
Since 11b087adfd (ref-filter: consult want_color() before emitting colors, 2017-07-13), we expect that setting "color.ui" to "always" will enable color tag formats even without a tty. As that commit was built on top of 136c8c8b8f (color: check color.ui in git_default_config(), 2017-07-13) from the same series, we didn't need to touch tag's config parsing at all. However, since we reverted 136c8c8b8f, we now need to explicitly call git_color_default_config() to make this work. Let's do so, and also restore the test dropped in 0c88bf5050 (provide --color option for all ref-filter users, 2017-10-03). That commit swapped out our "color.ui=always" test for "--color" in preparation for "always" going away. But since it is here to stay, we should test both cases. Note that for-each-ref also lost its color.ui support as part of reverting 136c8c8b8f. But as a plumbing command, it should _not_ respect the color.ui config. Since it also gained a --color option in 0c88bf5050, that's the correct way to ask it for color. We'll continue to test that, and confirm that "color.ui" is not respected. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-17Revert "color: check color.ui in git_default_config()"Jeff King4-4/+5
This reverts commit 136c8c8b8fa39f1315713248473dececf20f8fe7. That commit was trying to address a bug caused by 4c7f1819b3 (make color.ui default to 'auto', 2013-06-10), in which plumbing like diff-tree defaulted to "auto" color, but did not respect a "color.ui" directive to disable it. But it also meant that we started respecting "color.ui" set to "always". This was a known problem, but 4c7f1819b3 argued that nobody ought to be doing that. However, that turned out to be wrong, and we got a number of bug reports related to "add -p" regressing in v2.14.2. Let's revert 136c8c8b8, fixing the regression to "add -p". This leaves the problem from 4c7f1819b3 unfixed, but: 1. It's a pretty obscure problem in the first place. I only noticed it while working on the color code, and we haven't got a single bug report or complaint about it. 2. We can make a more moderate fix on top by respecting "never" but not "always" for plumbing commands. This is just the minimal fix to go back to the working state we had before v2.14.2. Note that this isn't a pure revert. We now have a test in t3701 which shows off the "add -p" regression. This can be flipped to success. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-17Merge branch 'jk/ui-color-always-to-auto-maint' (early part) into ↵Junio C Hamano2-0/+2
jk/ref-filter-colors-fix-maint * 'jk/ui-color-always-to-auto-maint' (early part): color: make "always" the same as "auto" in config provide --color option for all ref-filter users t3205: use --color instead of color.branch=always t3203: drop "always" color test t6006: drop "always" color config tests t7502: use diff.noprefix for --verbose test t7508: use test_terminal for color output t3701: use test-terminal to collect color output t4015: prefer --color to -c color.diff=always test-terminal: set TERM=vt100
2017-10-17upload-pack, receive-pack: introduce protocol version 1Brandon Williams1-0/+17
Teach upload-pack and receive-pack to understand and respond using protocol version 1, if requested. Protocol version 1 is simply the original and current protocol (what I'm calling version 0) with the addition of a single packet line, which precedes the ref advertisement, indicating the protocol version being spoken. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-16refs: convert resolve_ref_unsafe to struct object_idbrian m. carlson1-1/+1
Convert resolve_ref_unsafe to take a pointer to struct object_id by converting one remaining caller to use struct object_id, removing the temporary NULL pointer check in expand_ref, converting the declaration and definition, and applying the following semantic patch: @@ expression E1, E2, E3, E4; @@ - resolve_ref_unsafe(E1, E2, E3.hash, E4) + resolve_ref_unsafe(E1, E2, &E3, E4) @@ expression E1, E2, E3, E4; @@ - resolve_ref_unsafe(E1, E2, E3->hash, E4) + resolve_ref_unsafe(E1, E2, E3, E4) Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-16worktree: convert struct worktree to object_idbrian m. carlson1-3/+3
Convert the head_sha1 member to be head_oid instead. This is required to convert resolve_ref_unsafe. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-16refs: convert resolve_gitlink_ref to struct object_idbrian m. carlson1-2/+2
Convert the declaration and definition of resolve_gitlink_ref to use struct object_id and apply the following semantic patch: @@ expression E1, E2, E3; @@ - resolve_gitlink_ref(E1, E2, E3.hash) + resolve_gitlink_ref(E1, E2, &E3) @@ expression E1, E2, E3; @@ - resolve_gitlink_ref(E1, E2, E3->hash) + resolve_gitlink_ref(E1, E2, E3) Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-16refs: convert reflog_expire parameter to struct object_idbrian m. carlson1-3/+3
reflog_expire already used struct object_id internally, but it did not take it as a parameter. Adjust the parameter (and the callers) to pass a pointer to struct object_id instead of a pointer to unsigned char. Remove the temporary inserted earlier as it is no longer required. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-16refs: convert read_ref_at to struct object_idbrian m. carlson1-2/+2
Convert the callers and internals, including struct read_ref_at_cb, of read_ref_at to use struct object_id. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-16refs: convert peel_ref to struct object_idbrian m. carlson3-4/+4
Convert peel_ref (and its corresponding backend) to struct object_id. This transformation was done with an update to the declaration, definition, comments, and test helper and the following semantic patch: @@ expression E1, E2; @@ - peel_ref(E1, E2.hash) + peel_ref(E1, &E2) @@ expression E1, E2; @@ - peel_ref(E1, E2->hash) + peel_ref(E1, E2) Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-16builtin/pack-objects: convert to struct object_idbrian m. carlson1-67/+68
This is one of the last unconverted callers to peel_ref. While we're fixing that, convert the rest of the file, since it will need to be converted at some point anyway. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-16pack-bitmap: convert traverse_bitmap_commit_list to object_idbrian m. carlson2-6/+6
Convert traverse_bitmap_commit_list and the callbacks it takes to use a pointer to struct object_id. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-16refs: convert dwim_log to struct object_idbrian m. carlson1-2/+2
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-16builtin/reflog: convert remaining unsigned char uses to object_idbrian m. carlson1-9/+9
Convert the remaining uses of unsigned char [20] to struct object_id. This conversion is needed for dwim_log. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-16refs: convert dwim_ref and expand_ref to struct object_idbrian m. carlson6-6/+6
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 read_ref and read_ref_full to object_idbrian m. carlson6-12/+12
All but two of the call sites already have parameters using the hash parameter of struct object_id, so convert them to take a pointer to the struct directly. Also convert refs_read_refs_full, the underlying implementation. 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. carlson9-13/+13
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>
2017-10-16Convert check_connected to use struct object_idbrian m. carlson3-9/+9
Convert check_connected and the callbacks it takes to use struct object_id. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-16refs: update ref transactions to use struct object_idbrian m. carlson7-13/+13
Update the ref transaction code to use struct object_id. Remove one NULL pointer check which was previously inserted around a dereference; since we now pass a pointer to struct object_id directly through, the code we're calling handles this for us. 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. carlson8-31/+30
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>
2017-10-16refs: convert delete_ref and refs_delete_ref to struct object_idbrian m. carlson5-5/+5
Convert delete_ref and refs_delete_ref to take a pointer to struct object_id. Update the documentation accordingly, including referring to null_oid in lowercase, as it is not a #define constant. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-13branch: split validate_new_branchname() into twoJunio C Hamano2-9/+9
Checking if a proposed name is appropriate for a branch is strictly a subset of checking if we want to allow creating or updating a branch with such a name. The mysterious sounding 'attr_only' parameter to validate_new_branchname() is used to switch the function between these two roles. Instead, split the function into two, and adjust the callers. A new helper validate_branchname() only checks the name and reports if the branch already exists. This loses one NEEDSWORK from the branch API. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-13pull: pass --signoff/--no-signoff to "git merge"W. Trevor King1-0/+6
merge can take --signoff, but without pull passing --signoff down, it is inconvenient to use; allow 'pull' to take the option and pass it through. The order of options in merge-options.txt is mostly alphabetical by long option since 7c85d274 (Documentation/merge-options.txt: order options in alphabetical groups, 2009-10-22). The long-option bit didn't make it into the commit message, but it's under the fold in [1]. I've put --signoff between --log and --stat to preserve the alphabetical order. [1]: https://public-inbox.org/git/87iqe7zspn.fsf@jondo.cante.net/ Signed-off-by: W. Trevor King <wking@tremily.us> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-11merge-ours: do not use cmd_*() as a subroutineJunio C Hamano1-9/+7
The call to cmd_diff_index() "git merge-ours" makes has been working by accident that the function did not call exit(3), and the caller exited almost immediately after making a call, but it sets a bad precedent for people to cut and paste. For finding out if the index exactly matches the HEAD (or a given tree-ish), there is index_differs_from() which is exactly written for that purpose. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-11describe: do not use cmd_*() as a subroutineJunio C Hamano1-4/+11
The cmd_foo() function is a moral equivalent of 'main' for a Git subcommand 'git foo', and as such, it is allowed to do many things that make it unsuitable to be called as a subroutine, including - call exit(3) to terminate the process; - allocate resource held and used throughout its lifetime, without releasing it upon return/exit; - rely on global variables being initialized at program startup, and update them as needed, making another clean invocation of the function impossible. The call to cmd_diff_index() "git describe" makes has been working by accident that the function did not call exit(3); it sets a bad precedent for people to cut and paste. We could invoke it via the run_command() interface, but the diff family of commands have helper functions in diff-lib.c that are meant to be usable as subroutines, and using the latter does not make the resulting code all that longer. Use it. Note that there is also an invocation of cmd_name_rev() at the end; "git describe --contains" massages its command line arguments to be suitable for "git name-rev" invocation and jumps to it, never to regain control. This call is left as-is as an exception to the rule. When we start to allow calling name-rev repeatedly as a helper function, we would be able to remove this call as well. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-11Merge branch 'ds/avoid-overflow-in-midpoint-computation'Junio C Hamano3-4/+4
Code clean-up. * ds/avoid-overflow-in-midpoint-computation: cleanup: fix possible overflow errors in binary search
2017-10-10cleanup: fix possible overflow errors in binary searchDerrick Stolee3-4/+4
A common mistake when writing binary search is to allow possible integer overflow by using the simple average: mid = (min + max) / 2; Instead, use the overflow-safe version: mid = min + (max - min) / 2; This translation is safe since the operation occurs inside a loop conditioned on "min < max". The included changes were found using the following git grep: git grep '/ *2;' '*.c' Making this cleanup will prevent future review friction when a new binary search is contructed based on existing code. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Reviewed-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-07submodule: port submodule subcommand 'status' from shell to CPrathamesh Chavan1-0/+198
This aims to make git-submodule 'status' a built-in. Hence, the function cmd_status() is ported from shell to C. This is done by introducing four functions: module_status(), submodule_status_cb(), submodule_status() and print_status(). The function module_status() acts as the front-end of the subcommand. It parses subcommand's options and then calls the function module_list_compute() for computing the list of submodules. Then this functions calls for_each_listed_submodule() looping through the list obtained. Then for_each_listed_submodule() calls submodule_status_cb() for each of the submodule in its list. The function submodule_status_cb() calls submodule_status() after passing appropriate arguments to the funciton. Function submodule_status() is responsible for generating the status each submodule it is called for, and then calls print_status(). Finally, the function print_status() handles the printing of submodule's status. Function set_name_rev() is also ported from git-submodule to the submodule--helper builtin function compute_rev_name(), which now generates the value of the revision name as required. Mentored-by: Christian Couder <christian.couder@gmail.com> Mentored-by: Stefan Beller <sbeller@google.com> Signed-off-by: Prathamesh Chavan <pc44800@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-07submodule--helper: introduce for_each_listed_submodule()Prathamesh Chavan1-5/+35
Introduce function for_each_listed_submodule() and replace a loop in module_init() with a call to it. The new function will also be used in other parts of the system in later patches. Mentored-by: Christian Couder <christian.couder@gmail.com> Mentored-by: Stefan Beller <sbeller@google.com> Signed-off-by: Prathamesh Chavan <pc44800@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-07Merge branch 'ks/branch-tweak-error-message-for-extra-args'Junio C Hamano1-3/+3
Error message tweak. * ks/branch-tweak-error-message-for-extra-args: branch: change the error messages to be more meaningful
2017-10-07Merge branch 'jk/ui-color-always-to-auto'Junio C Hamano2-0/+2
Fix regression of "git add -p" for users with "color.ui = always" in their configuration, by merging the topic below and adjusting it for the 'master' front. * jk/ui-color-always-to-auto: t7301: use test_terminal to check color t4015: use --color with --color-moved color: make "always" the same as "auto" in config provide --color option for all ref-filter users t3205: use --color instead of color.branch=always t3203: drop "always" color test t6006: drop "always" color config tests t7502: use diff.noprefix for --verbose test t7508: use test_terminal for color output t3701: use test-terminal to collect color output t4015: prefer --color to -c color.diff=always test-terminal: set TERM=vt100
2017-10-07Merge branch 'ma/builtin-unleak'Junio C Hamano5-4/+11
Many variables that points at a region of memory that will live throughout the life of the program have been marked with UNLEAK marker to help the leak checkers concentrate on real leaks.. * ma/builtin-unleak: builtin/: add UNLEAKs
2017-10-07Merge branch 'sb/branch-avoid-repeated-strbuf-release'Junio C Hamano1-2/+3
* sb/branch-avoid-repeated-strbuf-release: branch: reset instead of release a strbuf
2017-10-07read-cache: leave lock in right state in `write_locked_index()`Martin Ågren1-1/+0
If the original version of `write_locked_index()` returned with an error, it didn't roll back the lockfile unless the error occured at the very end, during closing/committing. See commit 03b866477 (read-cache: new API write_locked_index instead of write_index/write_cache, 2014-06-13). In commit 9f41c7a6b (read-cache: close index.lock in do_write_index, 2017-04-26), we learned to close the lock slightly earlier in the callstack. That was mostly a side-effect of lockfiles being implemented using temporary files, but didn't cause any real harm. Recently, commit 076aa2cbd (tempfile: auto-allocate tempfiles on heap, 2017-09-05) introduced a subtle bug. If the temporary file is deleted (i.e., the lockfile is rolled back), the tempfile-pointer in the `struct lock_file` will be left dangling. Thus, an attempt to reuse the lockfile, or even just to roll it back, will induce undefined behavior -- most likely a crash. Besides not crashing, we clearly want to make things consistent. The guarantees which the lockfile-machinery itself provides is A) if we ask to commit and it fails, roll back, and B) if we ask to close and it fails, do _not_ roll back. Let's do the same for consistency. Do not delete the temporary file in `do_write_index()`. One of its callers, `write_locked_index()` will thereby avoid rolling back the lock. The other caller, `write_shared_index()`, will delete its temporary file anyway. Both of these callers will avoid undefined behavior (crashing). Teach `write_locked_index(..., COMMIT_LOCK)` to roll back the lock before returning. If we have already succeeded and committed, it will be a noop. Simplify the existing callers where we now have a superfluous call to `rollback_lockfile()`. That should keep future readers from wondering why the callers are inconsistent. Signed-off-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-07read-cache: drop explicit `CLOSE_LOCK`-flagMartin Ågren1-5/+5
`write_locked_index()` takes two flags: `COMMIT_LOCK` and `CLOSE_LOCK`. At most one is allowed. But it is also possible to use no flag, i.e., `0`. But when `write_locked_index()` calls `do_write_index()`, the temporary file, a.k.a. the lockfile, will be closed. So passing `0` is effectively the same as `CLOSE_LOCK`, which seems like a bug. We might feel tempted to restructure the code in order to close the file later, or conditionally. It also feels a bit unfortunate that we simply "happen" to close the lock by way of an implementation detail of lockfiles. But note that we need to close the temporary file before `stat`-ing it, at least on Windows. See 9f41c7a6b (read-cache: close index.lock in do_write_index, 2017-04-26). Drop `CLOSE_LOCK` and make it explicit that `write_locked_index()` always closes the lock. Whether it is also committed is governed by the remaining flag, `COMMIT_LOCK`. This means we neither have nor suggest that we have a mode to write the index and leave the file open. Whatever extra contents we might eventually want to write, we should probably write it from within `write_locked_index()` itself anyway. Signed-off-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-06bisect--helper: `is_expected_rev` & `check_expected_revs` shell function in CPranit Bauva1-1/+33
Reimplement `is_expected_rev` & `check_expected_revs` shell function in C and add a `--check-expected-revs` subcommand to `git bisect--helper` to call it from git-bisect.sh . Using `--check-expected-revs` subcommand is a temporary measure to port shell functions to C so as to use the existing test suite. As more functions are ported, this subcommand would be retired but its implementation will be called by some other method. Helped-by: Eric Sunshine <sunshine@sunshineco.com> Mentored-by: Lars Schneider <larsxschneider@gmail.com> Mentored-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Pranit Bauva <pranit.bauva@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-06bisect--helper: `bisect_clean_state` shell function in CPranit Bauva1-1/+9
Reimplement `bisect_clean_state` shell function in C and add a `bisect-clean-state` subcommand to `git bisect--helper` to call it from git-bisect.sh . Using `--bisect-clean-state` subcommand is a measure to port shell function to C so as to use the existing test suite. As more functions are ported, this subcommand will be retired but its implementation will be called by bisect_reset() and bisect_start(). Also introduce a function `mark_for_removal` to store the refs which need to be removed while iterating through the refs. Mentored-by: Lars Schneider <larsxschneider@gmail.com> Mentored-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Pranit Bauva <pranit.bauva@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-06bisect--helper: `write_terms` shell function in CPranit Bauva1-7/+29
Reimplement the `write_terms` shell function in C and add a `write-terms` subcommand to `git bisect--helper` to call it from git-bisect.sh . Also remove the subcommand `--check-term-format` as it can now be called from inside the function write_terms() C implementation. Also `|| exit` is added when calling write-terms subcommand from git-bisect.sh so as to exit whenever there is an error. Using `--write-terms` subcommand is a temporary measure to port shell function to C so as to use the existing test suite. As more functions are ported, this subcommand will be retired and its implementation will be called by some other method. Mentored-by: Lars Schneider <larsxschneider@gmail.com> Mentored-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Pranit Bauva <pranit.bauva@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-06bisect--helper: rewrite `check_term_format` shell function in CPranit Bauva1-1/+59
Reimplement the `check_term_format` shell function in C and add a `--check-term-format` subcommand to `git bisect--helper` to call it from git-bisect.sh Using `--check-term-format` subcommand is a temporary measure to port shell function to C so as to use the existing test suite. As more functions are ported, this subcommand will be retired and its implementation will be called by some other method/subcommand. For eg. In conversion of write_terms() of git-bisect.sh, the subcommand will be removed and instead check_term_format() will be called in its C implementation while a new subcommand will be introduced for write_terms(). Helped-by: Johannes Schindelein <Johannes.Schindelein@gmx.de> Mentored-by: Lars Schneider <larsxschneider@gmail.com> Mentored-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Pranit Bauva <pranit.bauva@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-06bisect--helper: use OPT_CMDMODE instead of OPT_BOOLPranit Bauva1-6/+11
`--next-all` is meant to be used as a subcommand to support multiple "operation mode" though the current implementation does not contain any other subcommand along side with `--next-all` but further commits will include some more subcommands. Helped-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Mentored-by: Lars Schneider <larsxschneider@gmail.com> Mentored-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Pranit Bauva <pranit.bauva@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-06apply: move lockfile into `apply_state`Martin Ågren2-5/+2
We have two users of `struct apply_state` and the related functionality in apply.c. Each user sets up its `apply_state` by handing over a pointer to its static `lock_file`. (Before 076aa2cbd (tempfile: auto-allocate tempfiles on heap, 2017-09-05), we could never free lockfiles, so making them static was a reasonable approach.) Other than that, they never directly access their `lock_file`s, which are instead handled by the functionality in apply.c. To make life easier for the caller and to make it less tempting for a future caller to mess with the lock, make apply.c fully responsible for setting up the `lock_file`. As mentioned above, it is now safe to free a `lock_file`, so we can make the `struct apply_state` contain an actual `struct lock_file` instead of a pointer to one. The user in builtin/apply.c is rather simple. For builtin/am.c, we might worry that the lock state is actually meant to be inherited across calls. But the lock is only taken as `apply_all_patches()` executes, and code inspection shows that it will always be released. Alternatively, we can observe that the lock itself is never queried directly. When we decide whether we should lock, we check a related variable `newfd`. That variable is not inherited, so from the point of view of apply.c, the state machine really is reset with each call to `init_apply_state()`. (It would be a bug if `newfd` and the lock status were not in sync. The duplication of information in `newfd` and the lock will be addressed in the next patch.) Signed-off-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-06checkout-index: simplify locking logicMartin Ågren1-5/+3
`newfd` starts out negative. If we then take the lock, `newfd` will become non-negative. We later check for exactly that property before calling `write_locked_index()`. That is, we are simply using `newfd` as a boolean to keep track of whether we took the lock or not. (We always use `newfd` and `lock_file` together, so they really are mirroring each other.) Drop `newfd` and check with `is_lock_file_locked()` instead. While at it, move the `static struct lock_file` into `cmd_checkout_index()` and make it non-static. It is only used in this function, and after 076aa2cbd (tempfile: auto-allocate tempfiles on heap, 2017-09-05), we can have lockfiles on the stack. Signed-off-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-06treewide: prefer lockfiles on the stackMartin Ågren4-29/+23
There is no longer any need to allocate and leak a `struct lock_file`. The previous patch addressed an instance where we needed a minor tweak alongside the trivial changes. Deal with the remaining instances where we allocate and leak a struct within a single function. Change them to have the `struct lock_file` on the stack instead. These instances were identified by running `git grep "^\s*struct lock_file\s*\*"`. Signed-off-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-05Merge branch 'rs/cleanup-strbuf-users'Junio C Hamano1-1/+1
Code clean-up. * rs/cleanup-strbuf-users: graph: use strbuf_addchars() to add spaces use strbuf_addstr() for adding strings to strbufs path: use strbuf_add_real_path()
2017-10-05Merge branch 'rs/resolve-ref-optional-result'Junio C Hamano2-4/+2
Code clean-up. * rs/resolve-ref-optional-result: refs: pass NULL to resolve_refdup() if hash is not needed refs: pass NULL to refs_resolve_refdup() if hash is not needed
2017-10-04branch: reset instead of release a strbufStefan Beller1-2/+3
Our documentation advises to not re-use a strbuf, after strbuf_release has been called on it. Use the proper reset instead. Currently 'strbuf_release' releases and re-initializes the strbuf, so it is safe, but slow. 'strbuf_reset' only resets the internal length variable, such that this could also be accounted for as a micro-optimization. Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>