The create_symref() function predates the existence of
"struct lock_file", let alone the more recent "struct
ref_lock". Instead, it just does its own manual dot-locking.
Besides being more code, this has a few downsides:
- if git is interrupted while holding the lock, we don't
clean up the lockfile
- we don't do the usual directory/filename conflict check.
So you can sometimes create a symref "refs/heads/foo/bar",
even if "refs/heads/foo" exists (namely, if the refs are
packed and we do not hit the d/f conflict in the
filesystem).
This patch refactors create_symref() to use the "struct
ref_lock" interface, which handles both of these things.
There are a few bonus cleanups that come along with it:
- we leaked ref_path in some error cases
- the symref contents were stored in a fixed-size buffer,
putting an artificial (albeit large) limitation on the
length of the refname. We now write through fprintf, and
handle refnames of any size.
- we called adjust_shared_perm only after the file was
renamed into place, creating a potential race with
readers in a shared repository. The lockfile code now
handles this when creating the lockfile, making it
atomic.
- the legacy prefer_symlink_refs path did not do any
locking at all. Admittedly, it is not atomic from a
reader's perspective (as it unlinks and re-creates the
symlink to overwrite), but at least it cannot conflict
with other writers now.
- the result of this patch is hopefully more readable. It
eliminates three goto labels. Two were for error checking
that is now simplified, and the third was to reach shared
code that has been pulled into its own function.
Signed-off-by: Jeff King <peff@peff.net>
Reviewed-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git symbolic-ref" forgot to report a failure with its exit status.
* jk/symbolic-ref-maint:
t1401: test reflog creation for git-symbolic-ref
symbolic-ref: propagate error code from create_symref()
The current code writes a reflog entry whenever we update a
symbolic ref, but we never test that this is so. Let's add a
test to make sure upcoming refactoring doesn't cause a
regression.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If create_symref() fails, git-symbolic-ref will still exit
with code 0, and our caller has no idea that the command did
nothing.
This appears to have been broken since the beginning of time
(e.g., it is not a regression where create_symref() stopped
calling die() or something similar).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"format-patch" has learned a new option to zero-out the commit
object name on the mbox "From " line.
* bc/format-patch-null-from-line:
format-patch: check that header line has expected format
format-patch: add an option to suppress commit hash
sha1_file.c: introduce a null_oid constant
Add new config to avoid typing "--recurse-submodules" on each push.
* mc/push-recurse-submodules-config:
push: follow the "last one wins" convention for --recurse-submodules
push: test that --recurse-submodules on command line overrides config
push: add recurseSubmodules config option
"git rebase -i" started with merge strategy options did not
propagate them upon "git rebase --continue".
* fr/rebase-i-continue-preserve-options:
rebase -i: remember merge options beyond continue actions
The format of the "From " header line is very specific to allow
utilities to detect Git-style patches. Add a test that the patches
created are in the expected format.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Oftentimes, patches created by git format-patch will be stored in
version control or compared with diff. In these cases, two otherwise
identical patches can have different commit hashes, leading to diff
noise. Teach git format-patch a --zero-commit option that instead
produces an all-zero hash to avoid this diff noise.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git p4" used to import Perforce CLs that touch only paths outside
the client spec as empty commits. It has been corrected to ignore
them instead, with a new configuration git-p4.keepEmptyCommits as a
backward compatibility knob.
* ls/p4-keep-empty-commits:
git-p4: add option to keep empty commits
If the user explicitly specified a merge strategy or strategy
options, continue to use that strategy/option after
"rebase --continue". Add a test of the corrected behavior.
If --merge is specified or implied by -s or -X, then "strategy and
"strategy_opts" are set to values from which "strategy_args" can be
derived; otherwise they are set to empty strings. Either way,
their values are propagated from one step of an interactive rebase
to the next via state files.
"do_merge", on the other hand, is *not* propagated to later steps of
an interactive rebase. Therefore, making the initialization of
"strategy_args" conditional on "do_merge" being set prevents later
steps of an interactive rebase from setting it correctly.
Luckily, we don't need the "do_merge" guard at all. If the rebase
was started without --merge, then "strategy" and "strategy_opts"
are both the empty string, which results in "strategy_args" also
being set to the empty string, which is just what we want in that
situation. So remove the "do_merge" guard and derive
"strategy_args" from "strategy" and "strategy_opts" every time.
Reported-by: Diogo de Campos <campos@esss.com.br>
Signed-off-by: Fabian Ruch <bafain@gmail.com>
Helped-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Because "test_when_finished" in our test framework queues the
clean-up tasks to be done in a shell variable, it should not be
used inside a subshell. Add a mechanism to allow 'bash' to catch
such uses, and fix the ones that were found.
* jk/test-lint-forbid-when-finished-in-subshell:
test-lib-functions: detect test_when_finished in subshell
t7800: don't use test_config in a subshell
test-lib-functions: support "test_config -C <dir> ..."
t5801: don't use test_when_finished in a subshell
t7610: don't use test_config in a subshell
A changelist that contains only excluded files due to a client spec was
imported as an empty commit. Fix that issue by ignoring these commits.
Add option "git-p4.keepEmptyCommits" to make the previous behavior
available.
Signed-off-by: Lars Schneider <larsxschneider@gmail.com>
Helped-by: Pete Harlan
Acked-by: Luke Diamand <luke@diamand.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Fix some racy client/server tests by treating SIGPIPE the same as a
normal non-zero exit.
* ls/test-must-fail-sigpipe:
add "ok=sigpipe" to test_must_fail and use it to fix flaky tests
implement test_might_fail using a refactored test_must_fail
Produce correct "dirty" marker for shell prompts, even when we
are on an orphan or an unborn branch.
* sg/bash-prompt-dirty-orphan:
bash prompt: indicate dirty index even on orphan branches
bash prompt: remove a redundant 'git diff' option
bash prompt: test dirty index and worktree while on an orphan branch
There was no way to defeat a configured rebase.autostash variable
from the command line, as "git rebase --no-autostash" was missing.
* jk/rebase-no-autostash:
Documentation/git-rebase: fix --no-autostash formatting
rebase: support --no-autostash
As CodingGuidelines says, some versions of bash errors out when
$variable substitution is used as the target for redirection without
being quoted (even though POSIX may not require such a quote).
Signed-off-by: Charles Bailey <cbailey32@bloomberg.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Use the "last one wins" convention for --recurse-submodules rather
than treating conflicting options as an error.
Also, fix the declaration of the file-scope recurse_submodules
global variable to put it on a separate line.
Signed-off-by: Mike Crowe <mac@mcrowe.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
t5531 only checked that the push.recurseSubmodules config option was
overridden by passing --recurse-submodules=check on the command
line. Add new tests for overriding with --recurse-submodules=no,
--no-recurse-submodules and --recurse-submodules=push too.
Also correct minor typo in test commit message.
Signed-off-by: Mike Crowe <mac@mcrowe.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The code to prepare the working tree side of temporary directory
for the "dir-diff" feature forgot that symbolic links need not be
copied (or symlinked) to the temporary area, as the code already
special cases and overwrites them. Besides, it was wrong to try
computing the object name of the target of symbolic link, which may
not even exist or may be a directory.
* da/difftool:
difftool: ignore symbolic links in use_wt_file
Having a leftover .idx file without corresponding .pack file in
the repository hurts performance; "git gc" learned to prune them.
We may want to do the same for .bitmap (and notice but not prune
.keep) without corresponding .pack, but that can be a separate
topic.
* dk/gc-idx-wo-pack:
gc: remove garbage .idx files from pack dir
t5304: test cleaning pack garbage
prepare_packed_git(): refactor garbage reporting in pack directory
Produce correct "dirty" marker for shell prompts, even when we
are on an orphan or an unborn branch.
* sg/bash-prompt-dirty-orphan:
bash prompt: indicate dirty index even on orphan branches
bash prompt: remove a redundant 'git diff' option
bash prompt: test dirty index and worktree while on an orphan branch
Teach send-email to dump mail aliases, so that we can do tab completion
on the command line.
* jk/send-email-complete-aliases:
completion: add support for completing email aliases
sendemail: teach git-send-email to dump alias names
Speed up filter-branch for cases where we only care about rewriting
commits, not tree data.
* jk/filter-branch-no-index:
filter-branch: skip index read/write when possible
Fsck did not correctly detect a NUL-truncated header in a tag.
* rs/fsck-nul-header:
fsck: treat a NUL in a tag header as an error
t1450: add tests for NUL in headers of commits and tags
Work around some test flakiness with p4d.
* ls/p4-test-timeouts:
git-p4: add trap to kill p4d on test exit
git-p4: add p4d timeout in tests
git-p4: retry kill/cleanup operations in tests with timeout
Clean up style in an ancient test.
* js/test-modernize-t9300:
modernize t9300: move test preparations into test_expect_success
modernize t9300: mark here-doc words to ignore tab indentation
modernize t9300: use test_when_finished for clean-up
modernize t9300: wrap lines after &&
modernize t9300: use test_must_be_empty
modernize t9300: use test_must_fail
modernize t9300: single-quote placement and indentation
* maint:
http: treat config options sslCAPath and sslCAInfo as paths
Documentation/diff: give --word-diff-regex=. example
filter-branch: deal with object name vs. pathname ambiguity in tree-filter
check-ignore: correct documentation about output
git-p4: clean up after p4 submit failure
git-p4: work with a detached head
git-p4: add option to system() to return subshell status
git-p4: add failing test for submit from detached head
remote-http(s): support SOCKS proxies
t5813: avoid creating urls that break on cygwin
Escape Git's exec path in contrib/rerere-train.sh script
allow hooks to ignore their standard input stream
rebase-i-exec: Allow space in SHELL_PATH
Documentation: make environment variable formatting more consistent
Just like the working tree is cleaned up when the user cancelled
submission in P4Submit.applyCommit(), clean up the mess if "p4
submit" fails.
* eg/p4-submit-catch-failure:
git-p4: clean up after p4 submit failure
Make git-p4 work on a detached head.
* ld/p4-detached-head:
git-p4: work with a detached head
git-p4: add option to system() to return subshell status
git-p4: add failing test for submit from detached head
t5516 "75 - deny fetch unreachable SHA1, allowtipsha1inwant=true" is
flaky in the following case:
1. remote upload-pack finds out "not our ref"
2. remote sends a response and closes the pipe
3. fetch-pack still tries to write commands to the remote upload-pack
4. write call in wrapper.c dies with SIGPIPE
The test is flaky because the sending fetch-pack may or may
not have finished writing its output by step (3). If it did,
then we see a closed pipe on the next read() call. If it
didn't, then we get the SIGPIPE from step (4) above. Both
are fine, but the latter fools test_must_fail.
t5504 "9 - push with transfer.fsckobjects" is flaky, too, and returns
SIGPIPE once in a while. I had to remove the final "To dst..." output
check because there is no output if the process dies with SIGPIPE.
Accept such a death-with-sigpipe also as OK when we are expecting a
failure.
Signed-off-by: Lars Schneider <larsxschneider@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Add an (optional) first parameter "ok=<special case>" to test_must_fail
and return success for "<special case>". Add "success" as
"<special case>" and use it to implement "test_might_fail". This removes
redundancies in test-lib-function.sh.
You can pass multiple <special case> arguments divided by comma (e.g.
"test_must_fail ok=success,something")
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Lars Schneider <larsxschneider@gmail.com>
Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: Jeff King <peff@peff.net>
'git filter-branch' fails complaining about an ambiguous argument, if
a tree-filter renames a path and the new pathname happens to match an
existing object name.
After the tree-filter has been applied, 'git filter-branch' looks for
changed paths by running:
git diff-index -r --name-only --ignore-submodules $commit
which then, because of the lack of disambiguating double-dash, can't
decide whether to treat '$commit' as revision or path and errors out.
Add that disambiguating double-dash after 'git diff-index's revision
argument to make sure that '$commit' is interpreted as a revision.
Signed-off-by: SZEDER Gábor <szeder@ira.uka.de>
Signed-off-by: Jeff King <peff@peff.net>
Commit 1b0d400 refactored the prepare_final() function so
that it could be reused in multiple places. Originally, the
loop had two outputs: a commit to stuff into sb->final, and
the name of the commit from the rev->pending array.
After the refactor, that loop is put in its own function
with a single return value: the object_array_entry from the
rev->pending array. This contains both the name and the object,
but with one important difference: the object is the
_original_ object found by the revision parser, not the
dereferenced commit. If one feeds a tag to "git blame", we
end up casting the tag object to a "struct commit", which
causes a segfault.
Instead, let's return the commit (properly casted) directly
from the function, and take the "name" as an optional
out-parameter. This does the right thing, and actually
simplifies the callers, who no longer need to cast or
dereference the object_array_entry themselves.
[test case by Max Kirillov <max@max630.net>]
Signed-off-by: Jeff King <peff@peff.net>
When "p4 submit" command fails in P4Submit.applyCommit, the
workspace is left with the changes. We already have code to revert
the changes to the workspace when the user decides to cancel
submission by aborting the editor that edits the change description,
and we should treat the "p4 submit" failure the same way.
Clean the workspace if p4_write_pipe raised SystemExit, so that the
user don't have to do it themselves.
Signed-off-by: GIRARD Etienne <egirard@murex.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Luke Diamand <luke@diamand.org>
Signed-off-by: Jeff King <peff@peff.net>
__git_ps1() doesn't indicate dirty index while on an orphan branch.
To check the dirtiness of the index, __git_ps1() runs 'git diff-index
--cached ... HEAD', which doesn't work on an orphan branch,
because HEAD doesn't point to a valid commit.
Run 'git diff ... --cached' instead, as it does the right thing both
on valid and invalid HEAD, i.e. compares the index to the existing
HEAD in the former case and to the empty tree in the latter. This
fixes the two failing tests added in the first commit of this series.
The dirtiness of the worktree is already checked with 'git diff' and
is displayed correctly even on an orphan branch.
Signed-off-by: SZEDER Gábor <szeder@ira.uka.de>
Signed-off-by: Jeff King <peff@peff.net>
There is only a single test exercising the dirty state indicator on an
orphan branch, and in that test neither the index nor the worktree are
dirty.
Add two failing tests to check the dirty state indicator while either
the index is dirty or while both the index and the worktree are dirty
on an orphan branch, and to show that the dirtiness of the index is
not displayed in these cases (the fourth combination, i.e. clean index
and dirty worktree are impossible on an orphan branch). Update the
existing dirty state indicator on clean orphan branch test to match
the style of the two new tests, most importantly to use 'git checkout
--orphan' instead of cd-ing into a repository that just happens to be
empty and clean.
Signed-off-by: SZEDER Gábor <szeder@ira.uka.de>
Signed-off-by: Jeff King <peff@peff.net>
When submitting, git-p4 finds the current branch in
order to know if it is allowed to submit (configuration
"git-p4.allowSubmit").
On a detached head, detecting the branch would fail, and
git-p4 would report a cryptic error.
This change teaches git-p4 to recognise a detached head and
submit successfully.
Signed-off-by: Luke Diamand <luke@diamand.org>
Signed-off-by: Jeff King <peff@peff.net>
git-p4 can't submit from a detached head. This test case
demonstrates the problem.
Signed-off-by: Luke Diamand <luke@diamand.org>
Signed-off-by: Jeff King <peff@peff.net>
The --recurse-submodules command line parameter has existed for some
time but it has no config file equivalent.
Following the style of the corresponding parameter for git fetch, let's
invent push.recurseSubmodules to provide a default for this
parameter. This also requires the addition of --recurse-submodules=no to
allow the configuration to be overridden on the command line when
required.
The most straightforward way to implement this appears to be to make
push use code in submodule-config in a similar way to fetch.
Signed-off-by: Mike Crowe <mac@mcrowe.com>
Signed-off-by: Jeff King <peff@peff.net>
We check the return value of verify_header() for commits already, so do
the same for tags as well.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Jeff King <peff@peff.net>
Sometimes the "prove" test runner hangs on test exit because p4d is
still running. Add a trap to always kill "p4d" on test exit.
You can reproduce the problem by commenting "P4D_TIMEOUT" in
"lib-git-p4.sh" and running "prove ./t9800-git-p4-basic.sh".
Signed-off-by: Lars Schneider <larsxschneider@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Our usual style these days is to execute everything inside
test_expect_success. Make it so.
Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Jeff King <peff@peff.net>
Add an option "--dump-aliases" which changes the default behavior of
git-send-email. This mode will simply read the alias files configured by
sendemail.aliasesfile and sendemail.aliasfiletype and dump a list of all
configured aliases, one per line. The intended use case for this option
is the bash-completion script which will use it to autocomplete aliases
on the options which take addresses.
Add some tests for the new option using various alias file formats.
A possible future extension to the alias dump format could be done by
extending the --dump-aliases to take an optional argument defining the
format to display. This has not been done in this patch as no user of
this information has been identified.
Signed-off-by: Jacob Keller <jacob.keller@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
