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2017-03-24tag: add tests for --with and --withoutLibravatar Ævar Arnfjörð Bjarmason1-2/+4
Change the test suite to test for these synonyms for --contains and --no-contains, respectively. Before this change there were no tests for them at all. This doesn't exhaustively test for them as well as their --contains and --no-contains synonyms, but at least it's something. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-24ref-filter: add --no-contains option to tag/branch/for-each-refLibravatar Ævar Arnfjörð Bjarmason3-7/+193
Change the tag, branch & for-each-ref commands to have a --no-contains option in addition to their longstanding --contains options. This allows for finding the last-good rollout tag given a known-bad <commit>. Given a hypothetically bad commit cf5c7253e0, the git version to revert to can be found with this hacky two-liner: (git tag -l 'v[0-9]*'; git tag -l --contains cf5c7253e0 'v[0-9]*') | sort | uniq -c | grep -E '^ *1 ' | awk '{print $2}' | tail -n 10 With this new --no-contains option the same can be achieved with: git tag -l --no-contains cf5c7253e0 'v[0-9]*' | sort | tail -n 10 As the filtering machinery is shared between the tag, branch & for-each-ref commands, implement this for those commands too. A practical use for this with "branch" is e.g. finding branches which were branched off between v2.8.0 and v2.10.0: git branch --contains v2.8.0 --no-contains v2.10.0 The "describe" command also has a --contains option, but its semantics are unrelated to what tag/branch/for-each-ref use --contains for. A --no-contains option for "describe" wouldn't make any sense, other than being exactly equivalent to not supplying --contains at all, which would be confusing at best. Add a --without option to "tag" as an alias for --no-contains, for consistency with --with and --contains. The --with option is undocumented, and possibly the only user of it is Junio (<xmqqefy71iej.fsf@gitster.mtv.corp.google.com>). But it's trivial to support, so let's do that. The additions to the the test suite are inverse copies of the corresponding --contains tests. With this change --no-contains for tag, branch & for-each-ref is just as well tested as the existing --contains option. In addition to those tests, add a test for "tag" which asserts that --no-contains won't find tree/blob tags, which is slightly unintuitive, but consistent with how --contains works & is documented. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-24tag: change --point-at to default to HEADLibravatar Ævar Arnfjörð Bjarmason1-1/+8
Change the --points-at option to default to HEAD for consistency with its siblings --contains, --merged etc. which default to HEAD. Previously we'd get: $ git tag --points-at 2>&1 | head -n 1 error: option `points-at' requires a value This changes behavior added in commit ae7706b9ac (tag: add --points-at list option, 2012-02-08). Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-24tag: implicitly supply --list given another list-like optionLibravatar Ævar Arnfjörð Bjarmason1-5/+50
Change the "tag" command to implicitly turn on its --list mode when provided with a list-like option such as --contains, --points-at etc. This is for consistency with how "branch" works. When "branch" is given a list-like option, such as --contains, it implicitly provides --list. Before this change "tag" would error out on those sorts of invocations. I.e. while both of these worked for "branch": git branch --contains v2.8.0 <pattern> git branch --list --contains v2.8.0 <pattern> Only the latter form worked for "tag": git tag --contains v2.8.0 '*rc*' git tag --list --contains v2.8.0 '*rc*' Now "tag", like "branch", will implicitly supply --list when a list-like option is provided, and no other conflicting non-list options (such as -d) are present on the command-line. Spelunking through the history via: git log --reverse -p -G'only allowed with' -- '*builtin*tag*c' Reveals that there was no good reason for not allowing this in the first place. The --contains option added in 32c35cfb1e ("git-tag: Add --contains option", 2009-01-26) made this an error. All the other subsequent list-like options that were added copied its pattern of making this usage an error. The only tests that break as a result of this change are tests that were explicitly checking that this "branch-like" usage wasn't permitted. Change those failing tests to check that this invocation mode is permitted, add extra tests for the list-like options we weren't testing, and tests to ensure that e.g. we don't toggle the list mode in the presence of other conflicting non-list options. With this change errors messages such as "--contains option is only allowed with -l" don't make sense anymore, since options like --contain turn on -l. Instead we error out when list-like options such as --contain are used in conjunction with conflicting options such as -d or -v. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-24tag: change misleading --list <pattern> documentationLibravatar Ævar Arnfjörð Bjarmason1-0/+25
Change the documentation for --list so that it's described as a toggle, not as an option that takes a <pattern> as an argument. Junio initially documented this in b867c7c23a ("git-tag: -l to list tags (usability).", 2006-02-17), but later Jeff King changed "tag" to accept multiple patterns in 588d0e834b ("tag: accept multiple patterns for --list", 2011-06-20). However, documenting this as "-l <pattern>" was never correct, as these both worked before Jeff's change: git tag -l 'v*' git tag 'v*' -l One would expect an option that was documented like that to only accept: git tag --list git tag --list 'v*rc*' And after Jeff's change, one that took multiple patterns: git tag --list 'v*rc*' --list '*2.8*' But since it's actually a toggle all of these work as well, and produce identical output to the last example above: git tag --list 'v*rc*' '*2.8*' git tag --list 'v*rc*' '*2.8*' --list --list --list git tag --list 'v*rc*' '*2.8*' --list -l --list -l --list Now the documentation is more in tune with how the "branch" command describes its --list option since commit cddd127b9a ("branch: introduce --list option", 2011-08-28). Change the test suite to assert that these invocations work for the cases that weren't already being tested for. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-24tag: add more incompatibles mode testsLibravatar Ævar Arnfjörð Bjarmason1-0/+16
Amend the test suite to test for more invalid uses like "-l -a" etc. This change tests the code path in builtin/tag.c between lines: if (argc == 0 && !cmdmode) And: if ((create_tag_object || force) && (cmdmode != 0)) Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-23tag tests: fix a typo in a test descriptionLibravatar Ævar Arnfjörð Bjarmason1-1/+1
Change "suceed" to "succeed" in a test description. The typo has been here since the code was originally added in commit ef5a6fb597 ("Add test-script for git-tag", 2007-06-28). Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-23tag: remove a TODO item from the test suiteLibravatar Ævar Arnfjörð Bjarmason1-2/+0
Change the test for "git tag -l" to not have an associated TODO comment saying that it should return non-zero if there's no tags. This was added in commit ef5a6fb597 ("Add test-script for git-tag", 2007-06-28) when the tests for "tag" were initially added, but at this point changing this would be inconsistent with how "git tag" is a synonym for "git tag -l", and would needlessly break external code that relies on this porcelain command. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-23ref-filter: add test for --contains on a non-commitLibravatar Ævar Arnfjörð Bjarmason2-1/+12
Change the tag test suite to test for --contains on a tree & blob. It only accepts commits and will spew out "<object> is a tree, not a commit". It's sufficient to test this just for the "tag" and "branch" commands, because it covers all the machinery shared between "branch" and "for-each-ref". Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-21ref-filter: make combining --merged & --no-merged an errorLibravatar Ævar Arnfjörð Bjarmason3-0/+12
Change the behavior of specifying --merged & --no-merged to be an error, instead of silently picking the option that was provided last. Subsequent changes of mine add a --no-contains option in addition to the existing --contains. Providing both of those isn't an error, and has actual meaning. Making its cousins have different behavior in this regard would be confusing to the user, especially since we'd be silently disregarding some of their command-line input. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-27Merge branch 'rl/remote-allow-missing-branch-name-merge'Libravatar Junio C Hamano1-0/+19
"git remote rm X", when a branch has remote X configured as the value of its branch.*.remote, tried to remove branch.*.remote and branch.*.merge and failed if either is unset. * rl/remote-allow-missing-branch-name-merge: remote: ignore failure to remove missing branch.<name>.merge
2017-02-27Merge branch 'km/delete-ref-reflog-message'Libravatar Junio C Hamano2-0/+24
"git update-ref -d" and other operations to delete references did not leave any entry in HEAD's reflog when the reference being deleted was the current branch. This is not a problem in practice because you do not want to delete the branch you are currently on, but caused renaming of the current branch to something else not to be logged in a useful way. * km/delete-ref-reflog-message: branch: record creation of renamed branch in HEAD's log rename_ref: replace empty message in HEAD's log update-ref: pass reflog message to delete_ref() delete_ref: accept a reflog message argument
2017-02-27Merge branch 'js/git-path-in-subdir'Libravatar Junio C Hamano3-1/+53
The "--git-path", "--git-common-dir", and "--shared-index-path" options of "git rev-parse" did not produce usable output. They are now updated to show the path to the correct file, relative to where the caller is. * js/git-path-in-subdir: rev-parse: fix several options when running in a subdirectory rev-parse tests: add tests executed from a subdirectory
2017-02-27Merge branch 'jn/remote-helpers-with-git-dir'Libravatar Junio C Hamano2-0/+18
"git ls-remote" and "git archive --remote" are designed to work without being in a directory under Git's control. However, recent updates revealed that we randomly look into a directory called .git/ without actually doing necessary set-up when working in a repository. Stop doing so. * jn/remote-helpers-with-git-dir: remote helpers: avoid blind fall-back to ".git" when setting GIT_DIR remote: avoid reading $GIT_DIR config in non-repo
2017-02-27Merge branch 'jk/grep-no-index-fix'Libravatar Junio C Hamano1-0/+66
The code to parse the command line "git grep <patterns>... <rev> [[--] <pathspec>...]" has been cleaned up, and a handful of bugs have been fixed (e.g. we used to check "--" if it is a rev). * jk/grep-no-index-fix: grep: treat revs the same for --untracked as for --no-index grep: do not diagnose misspelt revs with --no-index grep: avoid resolving revision names in --no-index case grep: fix "--" rev/pathspec disambiguation grep: re-order rev-parsing loop grep: do not unnecessarily query repo for "--" grep: move thread initialization a little lower
2017-02-27Merge branch 'dt/gc-ignore-old-gc-logs'Libravatar Junio C Hamano1-0/+15
A "gc.log" file left by a backgrounded "gc --auto" disables further automatic gc; it has been taught to run at least once a day (by default) by ignoring a stale "gc.log" file that is too old. * dt/gc-ignore-old-gc-logs: gc: ignore old gc.log files
2017-02-27Merge branch 'sf/putty-w-args'Libravatar Junio C Hamano1-0/+41
The command line options for ssh invocation needs to be tweaked for some implementations of SSH (e.g. PuTTY plink wants "-P <port>" while OpenSSH wants "-p <port>" to specify port to connect to), and the variant was guessed when GIT_SSH environment variable is used to specify it. The logic to guess now applies to the command specified by the newer GIT_SSH_COMMAND and also core.sshcommand configuration variable, and comes with an escape hatch for users to deal with misdetected cases. * sf/putty-w-args: connect.c: stop conflating ssh command names and overrides connect: Add the envvar GIT_SSH_VARIANT and ssh.variant config git_connect(): factor out SSH variant handling connect: rename tortoiseplink and putty variables connect: handle putty/plink also in GIT_SSH_COMMAND
2017-02-27Merge branch 'js/rebase-helper'Libravatar Junio C Hamano1-1/+1
"git rebase -i" starts using the recently updated "sequencer" code. * js/rebase-helper: rebase -i: use the rebase--helper builtin rebase--helper: add a builtin helper for interactive rebases
2017-02-27Merge branch 'bw/attr'Libravatar Junio C Hamano1-0/+26
The gitattributes machinery is being taught to work better in a multi-threaded environment. * bw/attr: (27 commits) attr: reformat git_attr_set_direction() function attr: push the bare repo check into read_attr() attr: store attribute stack in attr_check structure attr: tighten const correctness with git_attr and match_attr attr: remove maybe-real, maybe-macro from git_attr attr: eliminate global check_all_attr array attr: use hashmap for attribute dictionary attr: change validity check for attribute names to use positive logic attr: pass struct attr_check to collect_some_attrs attr: retire git_check_attrs() API attr: convert git_check_attrs() callers to use the new API attr: convert git_all_attrs() to use "struct attr_check" attr: (re)introduce git_check_attr() and struct attr_check attr: rename function and struct related to checking attributes attr.c: outline the future plans by heavily commenting Documentation: fix a typo attr.c: add push_stack() helper attr: support quoting pathname patterns in C style attr.c: plug small leak in parse_attr_line() attr.c: tighten constness around "git_attr" structure ...
2017-02-27Merge branch 'sg/completion'Libravatar Junio C Hamano2-75/+503
Clean-up and updates to command line completion (in contrib/). * sg/completion: (22 commits) completion: restore removed line continuating backslash completion: cache the path to the repository completion: extract repository discovery from __gitdir() completion: don't guard git executions with __gitdir() completion: consolidate silencing errors from git commands completion: don't use __gitdir() for git commands completion: respect 'git -C <path>' rev-parse: add '--absolute-git-dir' option completion: fix completion after 'git -C <path>' completion: don't offer commands when 'git --opt' needs an argument completion: list short refs from a remote given as a URL completion: don't list 'HEAD' when trying refs completion outside of a repo completion: list refs from remote when remote's name matches a directory completion: respect 'git --git-dir=<path>' when listing remote refs completion: fix most spots not respecting 'git --git-dir=<path>' completion: ensure that the repository path given on the command line exists completion tests: add tests for the __git_refs() helper function completion tests: check __gitdir()'s output in the error cases completion tests: consolidate getting path of current working directory completion tests: make the $cur variable local to the test helper functions ...
2017-02-27Merge branch 'lt/pathspec-negative'Libravatar Junio C Hamano1-2/+4
The "negative" pathspec feature was somewhat more cumbersome to use than necessary in that its short-hand used "!" which needed to be escaped from shells, and it required "exclude from what?" specified. * lt/pathspec-negative: pathspec: don't error out on all-exclusionary pathspec patterns pathspec magic: add '^' as alias for '!'
2017-02-27Merge branch 'cw/tag-reflog-message'Libravatar Junio C Hamano1-1/+17
"git tag" did not leave useful message when adding a new entry to reflog; this was left unnoticed for a long time because refs/tags/* doesn't keep reflog by default. * cw/tag-reflog-message: tag: generate useful reflog message
2017-02-27Merge branch 'jk/alternate-ref-optim'Libravatar Junio C Hamano1-0/+38
Optimizes resource usage while enumerating refs from alternate object store, to help receiving end of "push" that hosts a repository with many "forks". * jk/alternate-ref-optim: receive-pack: avoid duplicates between our refs and alternates receive-pack: treat namespace .have lines like alternates receive-pack: fix misleading namespace/.have comment receive-pack: use oidset to de-duplicate .have lines add oidset API fetch-pack: cache results of for_each_alternate_ref for_each_alternate_ref: replace transport code with for-each-ref for_each_alternate_ref: pass name/oid instead of ref struct for_each_alternate_ref: use strbuf for path allocation for_each_alternate_ref: stop trimming trailing slashes for_each_alternate_ref: handle failure from real_pathdup()
2017-02-27Merge branch 'kn/ref-filter-branch-list'Libravatar Junio C Hamano4-13/+195
The code to list branches in "git branch" has been consolidated with the more generic ref-filter API. * kn/ref-filter-branch-list: (21 commits) ref-filter: resurrect "strip" as a synonym to "lstrip" branch: implement '--format' option branch: use ref-filter printing APIs branch, tag: use porcelain output ref-filter: allow porcelain to translate messages in the output ref-filter: add an 'rstrip=<N>' option to atoms which deal with refnames ref-filter: modify the 'lstrip=<N>' option to work with negative '<N>' ref-filter: Do not abruptly die when using the 'lstrip=<N>' option ref-filter: rename the 'strip' option to 'lstrip' ref-filter: make remote_ref_atom_parser() use refname_atom_parser_internal() ref-filter: introduce refname_atom_parser() ref-filter: introduce refname_atom_parser_internal() ref-filter: make "%(symref)" atom work with the ':short' modifier ref-filter: add support for %(upstream:track,nobracket) ref-filter: make %(upstream:track) prints "[gone]" for invalid upstreams ref-filter: introduce format_ref_array_item() ref-filter: move get_head_description() from branch.c ref-filter: modify "%(objectname:short)" to take length ref-filter: implement %(if:equals=<string>) and %(if:notequals=<string>) ref-filter: include reference to 'used_atom' within 'atom_value' ...
2017-02-27Merge branch 'ps/urlmatch-wildcard'Libravatar Junio C Hamano1-0/+105
The <url> part in "http.<url>.<variable>" configuration variable can now be spelled with '*' that serves as wildcard. E.g. "http.https://*.example.com.proxy" can be used to specify the proxy used for https://a.example.com, https://b.example.com, etc., i.e. any host in the example.com domain. * ps/urlmatch-wildcard: urlmatch: allow globbing for the URL host part urlmatch: include host in urlmatch ranking urlmatch: split host and port fields in `struct url_info` urlmatch: enable normalization of URLs with globs mailmap: add Patrick Steinhardt's work address
2017-02-27Merge branch 'mm/merge-rename-delete-message'Libravatar Junio C Hamano1-0/+23
When "git merge" detects a path that is renamed in one history while the other history deleted (or modified) it, it now reports both paths to help the user understand what is going on in the two histories being merged. * mm/merge-rename-delete-message: merge-recursive: make "CONFLICT (rename/delete)" message show both paths
2017-02-27Merge branch 'mh/ref-remove-empty-directory'Libravatar Junio C Hamano2-1/+28
Deletion of a branch "foo/bar" could remove .git/refs/heads/foo once there no longer is any other branch whose name begins with "foo/", but we didn't do so so far. Now we do. * mh/ref-remove-empty-directory: (23 commits) files_transaction_commit(): clean up empty directories try_remove_empty_parents(): teach to remove parents of reflogs, too try_remove_empty_parents(): don't trash argument contents try_remove_empty_parents(): rename parameter "name" -> "refname" delete_ref_loose(): inline function delete_ref_loose(): derive loose reference path from lock log_ref_write_1(): inline function log_ref_setup(): manage the name of the reflog file internally log_ref_write_1(): don't depend on logfile argument log_ref_setup(): pass the open file descriptor back to the caller log_ref_setup(): improve robustness against races log_ref_setup(): separate code for create vs non-create log_ref_write(): inline function rename_tmp_log(): improve error reporting rename_tmp_log(): use raceproof_create_file() lock_ref_sha1_basic(): use raceproof_create_file() lock_ref_sha1_basic(): inline constant raceproof_create_file(): new function safe_create_leading_directories(): set errno on SCLD_EXISTS safe_create_leading_directories_const(): preserve errno ...
2017-02-27Merge branch 'jk/delta-chain-limit'Libravatar Junio C Hamano1-0/+93
"git repack --depth=<n>" for a long time busted the specified depth when reusing delta from existing packs. This has been corrected. * jk/delta-chain-limit: pack-objects: convert recursion to iteration in break_delta_chain() pack-objects: enforce --depth limit in reused deltas
2017-02-27Merge branch 'jk/describe-omit-some-refs'Libravatar Junio C Hamano2-0/+65
"git describe" and "git name-rev" have been taught to take more than one refname patterns to restrict the set of refs to base their naming output on, and also learned to take negative patterns to name refs not to be used for naming via their "--exclude" option. * jk/describe-omit-some-refs: describe: teach describe negative pattern matches describe: teach --match to accept multiple patterns name-rev: add support to exclude refs by pattern match name-rev: extend --refs to accept multiple patterns doc: add documentation for OPT_STRING_LIST
2017-02-21remote: ignore failure to remove missing branch.<name>.mergeLibravatar Ross Lagerwall1-0/+19
It is not all too unusual for a branch to use "branch.<name>.remote" without "branch.<name>.merge". You may be using the 'push.default' configuration set to 'current', for example, and do $ git checkout -b side colleague/side $ git config branch.side.remote colleague However, "git remote rm" to remove the remote used in such a manner fails with "fatal: could not unset 'branch.<name>.merge'" because it assumes that a branch that has .remote defined must also have .merge defined. Detect the "cannot unset because it is not set to begin with" case and ignore it. Signed-off-by: Ross Lagerwall <rosslagerwall@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-20branch: record creation of renamed branch in HEAD's logLibravatar Kyle Meyer1-2/+3
Renaming the current branch adds an event to the current branch's log and to HEAD's log. However, the logged entries differ. The entry in the branch's log represents the entire renaming operation (the old and new hash are identical), whereas the entry in HEAD's log represents the deletion only (the new sha1 is null). Extend replace_each_worktree_head_symref(), whose only caller is branch_rename(), to take a reflog message argument. This allows the creation of the new ref to be recorded in HEAD's log. As a result, the renaming event is represented by two entries (a deletion and a creation entry) in HEAD's log. It's a bit unfortunate that the branch's log and HEAD's log now represent the renaming event in different ways. Given that the renaming operation is not atomic, the two-entry form is a more accurate representation of the operation and is more useful for debugging purposes if a failure occurs between the deletion and creation events. It would make sense to move the branch's log to the two-entry form, but this would involve changes to how the rename is carried out and to how the update flags and reflogs are processed for deletions, so it may not be worth the effort. Based-on-patch-by: Jeff King <peff@peff.net> Signed-off-by: Kyle Meyer <kyle@kyleam.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-20rename_ref: replace empty message in HEAD's logLibravatar Kyle Meyer1-0/+5
When the current branch is renamed, the deletion of the old ref is recorded in HEAD's log with an empty message. Now that delete_ref() accepts a reflog message, provide a more descriptive message by passing along the log message that is given to rename_ref(). The next step will be to extend HEAD's log to also include the second part of the rename, the creation of the new branch. Helped-by: Jeff King <peff@peff.net> Signed-off-by: Kyle Meyer <kyle@kyleam.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-20update-ref: pass reflog message to delete_ref()Libravatar Kyle Meyer1-0/+18
Now that delete_ref() accepts a reflog message, pass the user-provided message to delete_ref() rather than silently dropping it. Signed-off-by: Kyle Meyer <kyle@kyleam.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-17rev-parse: fix several options when running in a subdirectoryLibravatar Johannes Schindelin3-5/+5
In addition to making git_path() aware of certain file names that need to be handled differently e.g. when running in worktrees, the commit 557bd833bb (git_path(): be aware of file relocation in $GIT_DIR, 2014-11-30) also snuck in a new option for `git rev-parse`: `--git-path`. On the face of it, there is no obvious bug in that commit's diff: it faithfully calls git_path() on the argument and prints it out, i.e. `git rev-parse --git-path <filename>` has the same precise behavior as calling `git_path("<filename>")` in C. The problem lies deeper, much deeper. In hindsight (which is always unfair), implementing the .git/ directory discovery in `setup_git_directory()` by changing the working directory may have allowed us to avoid passing around a struct that contains information about the current repository, but it bought us many, many problems. In this case, when being called in a subdirectory, `git rev-parse` changes the working directory to the top-level directory before calling `git_path()`. In the new working directory, the result is correct. But in the working directory of the calling script, it is incorrect. Example: when calling `git rev-parse --git-path HEAD` in, say, the Documentation/ subdirectory of Git's own source code, the string `.git/HEAD` is printed. Side note: that bug is hidden when running in a subdirectory of a worktree that was added by the `git worktree` command: in that case, the (correct) absolute path of the `HEAD` file is printed. In the interest of time, this patch does not go the "correct" route to introduce a struct with repository information (and removing global state in the process), instead this patch chooses to detect when the command was called in a subdirectory and forces the result to be an absolute path. While at it, we are also fixing the output of --git-common-dir and --shared-index-path. Lastly, please note that we reuse the same strbuf for all of the relative_path() calls; this avoids frequent allocation (and duplicated code), and it does not risk memory leaks, for two reasons: 1) the cmd_rev_parse() function does not return anywhere between the use of the new strbuf instance and its final release, and 2) git-rev-parse is one of these "one-shot" programs in Git, i.e. it exits after running for a very short time, meaning that all allocated memory is released with the exit() call anyway. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-17rev-parse tests: add tests executed from a subdirectoryLibravatar Michael Rappazzo3-2/+54
t2027-worktree-list has an incorrect expectation for --git-common-dir which has been adjusted and marked to expect failure. Some of the tests added have been marked to expect failure. These demonstrate a problem with the way that some options to git rev-parse behave when executed from a subdirectory of the main worktree. [jes: fixed incorrect assumption that objects/ lives in the worktree-specific git-dir (it lives in the common dir instead). Also adjusted t1700 so that the test case does not *need* to be the last one in that script.] Signed-off-by: Michael Rappazzo <rappazzo@gmail.com> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-16Merge branch 'ls/p4-path-encoding'Libravatar Junio C Hamano1-0/+16
When "git p4" imports changelist that removes paths, it failed to convert pathnames when the p4 used encoding different from the one used on the Git side. This has been corrected. * ls/p4-path-encoding: git-p4: fix git-p4.pathEncoding for removed files
2017-02-15Merge branch 'sb/push-options-via-transport'Libravatar Junio C Hamano1-0/+15
The push-options given via the "--push-options" option were not passed through to external remote helpers such as "smart HTTP" that are invoked via the transport helper. * sb/push-options-via-transport: push options: pass push options to the transport helper
2017-02-14grep: treat revs the same for --untracked as for --no-indexLibravatar Jeff King1-1/+1
git-grep has always disallowed grepping in a tree (as opposed to the working directory) with both --untracked and --no-index. But we traditionally did so by first collecting the revs, and then complaining when any were provided. The --no-index option recently learned to detect revs much earlier. This has two user-visible effects: - we don't bother to resolve revision names at all. So when there's a rev/path ambiguity, we always choose to treat it as a path. - likewise, when you do specify a revision without "--", the error you get is "no such path" and not "--untracked cannot be used with revs". The rationale for doing this with --no-index is that it is meant to be used outside a repository, and so parsing revs at all does not make sense. This patch gives --untracked the same treatment. While it _is_ meant to be used in a repository, it is explicitly about grepping the non-repository contents. Telling the user "we found a rev, but you are not allowed to use revs" is not really helpful compared to "we treated your argument as a path, and could not find it". Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-14remote helpers: avoid blind fall-back to ".git" when setting GIT_DIRLibravatar Jonathan Nieder1-0/+9
To push from or fetch to the current repository, remote helpers need to know what repository that is. Accordingly, Git sets the GIT_DIR environment variable to the path to the current repository when invoking remote helpers. There is a special case it does not handle: "git ls-remote" and "git archive --remote" can be run to inspect a remote repository without being run from any local repository. GIT_DIR is not useful in this scenario: - if we are not in a repository, we don't need to set GIT_DIR to override an existing GIT_DIR value from the environment. If GIT_DIR is present then we would be in a repository if it were valid and would have called die() if it weren't. - not setting GIT_DIR may cause a helper to do the usual discovery walk to find the repository. But we know we're not in one, or we would have found it ourselves. So in the worst case it may expend a little extra effort to try to find a repository and fail (for example, remote-curl would do this to try to find repository-level configuration). So leave GIT_DIR unset in this case. This makes GIT_DIR easier to understand for remote helper authors and makes transport code less of a special case for repository discovery. Noticed using b1ef400e (setup_git_env: avoid blind fall-back to ".git", 2016-10-20) from 'next': $ cd /tmp $ git ls-remote https://kernel.googlesource.com/pub/scm/git/git fatal: BUG: setup_git_env called without repository Helped-by: Jeff King <peff@peff.net> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-14remote: avoid reading $GIT_DIR config in non-repoLibravatar Jeff King1-0/+9
The "git ls-remote" command can be run outside of a repository, but needs to look up configured remotes. The config code is smart enough to handle this case itself, but we also check the historical "branches" and "remotes" paths in $GIT_DIR. The git_path() function causes us to blindly look at ".git/remotes", even if we know we aren't in a git repository. For now, this is just an unlikely bug (you probably don't have such a file if you're not in a repository), but it will become more obvious once we merge b1ef400ee (setup_git_env: avoid blind fall-back to ".git", 2016-10-20): [now] $ git ls-remote fatal: No remote configured to list refs from. [with b1ef400ee] $ git ls-remote fatal: BUG: setup_git_env called without repository We can fix this by skipping these sources entirely when we're outside of a repository. The test is a little more complex than the demonstration above. Rather than detect the correct behavior by parsing the error message, we can actually set up a case where the remote name we give is a valid repository, but b1ef400ee would cause us to die in the configuration step. This test doesn't fail now, but it future-proofs us for the b1ef400ee change. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-14grep: do not diagnose misspelt revs with --no-indexLibravatar Jeff King1-0/+5
If we are using --no-index, then our arguments cannot be revs in the first place. Not only is it pointless to diagnose them, but if we are not in a repository, we should not be trying to resolve any names. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-14grep: avoid resolving revision names in --no-index caseLibravatar Jeff King1-0/+13
We disallow the use of revisions with --no-index, but we don't actually check and complain until well after we've parsed the revisions. This is the cause of a few problems: 1. We shouldn't be calling get_sha1() at all when we aren't in a repository, as it might access the ref or object databases. For now, this should generally just return failure, but eventually it will become a BUG(). 2. When there's a "--" disambiguator and you're outside a repository, we'll complain early with "unable to resolve revision". But we can give a much more specific error. 3. When there isn't a "--" disambiguator, we still do the normal rev/path checks. This is silly, as we know we cannot have any revs with --no-index. Everything we see must be a path. Outside of a repository this doesn't matter (since we know it won't resolve), but inside one, we may complain unnecessarily if a filename happens to also match a refname. This patch skips the get_sha1() call entirely in the no-index case, and behaves as if it failed (with the exception of giving a better error message). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-14grep: fix "--" rev/pathspec disambiguationLibravatar Jeff King1-0/+33
If we see "git grep pattern rev -- file" then we apply the usual rev/pathspec disambiguation rules: any "rev" before the "--" must be a revision, and we do not need to apply the verify_non_filename() check. But there are two bugs here: 1. We keep a seen_dashdash flag to handle this case, but we set it in the same left-to-right pass over the arguments in which we parse "rev". So when we see "rev", we do not yet know that there is a "--", and we mistakenly complain if there is a matching file. We can fix this by making a preliminary pass over the arguments to find the "--", and only then checking the rev arguments. 2. If we can't resolve "rev" but there isn't a dashdash, that's OK. We treat it like a path, and complain later if it doesn't exist. But if there _is_ a dashdash, then we know it must be a rev, and should treat it as such, complaining if it does not resolve. The current code instead ignores it and tries to treat it like a path. This patch fixes both bugs, and tries to comment the parsing flow a bit better. It adds tests that cover the two bugs, but also some related situations (which already worked, but this confirms that our fixes did not break anything). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-14grep: do not unnecessarily query repo for "--"Libravatar Jonathan Tan1-0/+15
When running a command of the form git grep --no-index pattern -- path in the absence of a Git repository, an error message will be printed: fatal: BUG: setup_git_env called without repository This is because "git grep" tries to interpret "--" as a rev. "git grep" has always tried to first interpret "--" as a rev for at least a few years, but this issue was upgraded from a pessimization to a bug in commit 59332d1 ("Resurrect "git grep --no-index"", 2010-02-06), which calls get_sha1 regardless of whether --no-index was specified. This bug appeared to be benign until commit b1ef400 ("setup_git_env: avoid blind fall-back to ".git"", 2016-10-20) when Git was taught to die in this situation. (This "git grep" bug appears to be one of the bugs that commit b1ef400 is meant to flush out.) Therefore, always interpret "--" as signaling the end of options, instead of trying to interpret it as a rev first. Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-13gc: ignore old gc.log filesLibravatar David Turner1-0/+15
A server can end up in a state where there are lots of unreferenced loose objects (say, because many users are doing a bunch of rebasing and pushing their rebased branches). Running "git gc --auto" in this state would cause a gc.log file to be created, preventing future auto gcs, causing pack files to pile up. Since many git operations are O(n) in the number of pack files, this would lead to poor performance. Git should never get itself into a state where it refuses to do any maintenance, just because at some point some piece of the maintenance didn't make progress. Teach Git to ignore gc.log files which are older than (by default) one day old, which can be tweaked via the gc.logExpiry configuration variable. That way, these pack files will get cleaned up, if necessary, at least once per day. And operators who find a need for more-frequent gcs can adjust gc.logExpiry to meet their needs. There is also some cleanup: a successful manual gc, or a warning-free auto gc with an old log file, will remove any old gc.log files. It might still happen that manual intervention is required (e.g. because the repo is corrupt), but at the very least it won't be because Git is too dumb to try again. Signed-off-by: David Turner <dturner@twosigma.com> Helped-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-10git-p4: fix git-p4.pathEncoding for removed filesLibravatar Lars Schneider1-0/+16
In a9e38359e3 we taught git-p4 a way to re-encode path names from what was used in Perforce to UTF-8. This path re-encoding worked properly for "added" paths. "Removed" paths were not re-encoded and therefore different from the "added" paths. Consequently, these files were not removed in a git-p4 cloned Git repository because the path names did not match. Fix this by moving the re-encoding to a place that affects "added" and "removed" paths. Add a test to demonstrate the issue. Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Reviewed-by: Luke Diamand <luke@diamand.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-10pathspec: don't error out on all-exclusionary pathspec patternsLibravatar Linus Torvalds1-2/+4
Instead of erroring out and telling the user that they should add a positive pattern that covers everything else, just _do_ that. For commands where we honor the current cwd by default (ie grep, ls-files etc), we make that default positive pathspec be the current working directory. And for commands that default to the whole project (ie diff, log, etc), the default positive pathspec is the whole project. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-10Merge branch 'jk/log-graph-name-only'Libravatar Junio C Hamano1-0/+48
"git log --graph" did not work well with "--name-only", even though other forms of "diff" output were handled correctly. * jk/log-graph-name-only: diff: print line prefix for --name-only output
2017-02-10Merge branch 'da/t7800-cleanup'Libravatar Junio C Hamano1-12/+19
Test updates. * da/t7800-cleanup: t7800: replace "wc -l" with test_line_count
2017-02-10Merge branch 'js/difftool-builtin'Libravatar Junio C Hamano1-0/+12
A few hot-fixes to C-rewrite of "git difftool". * js/difftool-builtin: t7800: simplify basic usage test difftool: fix bug when printing usage