"git reflog" incorrectly assumed that all objects that used to be
at the tip of a ref must be commits, which caused it to segfault.
* dk/reflog-walk-with-non-commit:
reflog-walk: don't segfault on non-commit sha1's in the reflog
The documentation has been updated to hint the connection between
the '--signoff' option and DCO.
* dw/signoff-doc:
Expand documentation describing --signoff
A few unportable C construct have been spotted by clang compiler
and have been fixed.
* jk/clang-pedantic:
bswap: add NO_UNALIGNED_LOADS define
avoid shifting signed integers 31 bits
"git send-email" was confused by escaped quotes stored in the alias
files saved by "mutt", which has been corrected.
* ew/send-email-mutt-alias-fix:
git-send-email: do not double-escape quotes from mutt
Drop a few old "todo" items by deciding that the change one of them
suggests is not such a good idea, and doing the change the other
one suggested to do.
* ss/user-manual:
user-manual: add addition gitweb information
user-manual: add section documenting shallow clones
glossary: define the term shallow clone
user-manual: remove temporary branch entry from todo list
d95138e6 (setup: set env $GIT_WORK_TREE when work tree is set, like
$GIT_DIR, 2015-06-26) attempted to work around a glitch in alias
handling by overwriting GIT_WORK_TREE environment variable to
affect subprocesses when set_git_work_tree() gets called, which
resulted in a rather unpleasant regression to "clone" and "init".
Try to address the same issue by always restoring the environment
and respawning the real underlying command when handling alias.
* nd/clear-gitenv-upon-use-of-alias:
run-command: don't warn on SIGPIPE deaths
git.c: make sure we do not leak GIT_* to alias scripts
setup.c: re-fix d95138e (setup: set env $GIT_WORK_TREE when ..
git.c: make it clear save_env() is for alias handling only
Paths that have been told the index about with "add -N" are not
quite yet in the index, but a few commands behaved as if they
already are in a harmful way.
* nd/ita-cleanup:
grep: make it clear i-t-a entries are ignored
add and use a convenience macro ce_intent_to_add()
blame: remove obsolete comment
The "exclude_list" structure has the usual "alloc, nr" pair of
fields to be used by ALLOC_GROW(), but clear_exclude_list() forgot
to reset 'alloc' to 0 when it cleared 'nr'to discard the managed
array.
* nd/dir-exclude-cleanup:
dir.c: clean the entire struct in clear_exclude_list()
In-core storage of the reverse index for .pack files (which lets
you go from a pack offset to an object name) has been streamlined.
* jk/pack-revindex:
pack-revindex: store entries directly in packed_git
pack-revindex: drop hash table
Some "git notes" operations, e.g. "git log --notes=<note>", should
be able to read notes from any tree-ish that is shaped like a notes
tree, but the notes infrastructure required that the argument must
be a ref under refs/notes/. Loosen it to require a valid ref only
when the operation would update the notes (in which case we must
have a place to store the updated notes tree, iow, a ref).
* mh/notes-allow-reading-treeish:
notes: allow treeish expressions as notes ref
"git grep" can now be configured (or told from the command line)
how many threads to use when searching in the working tree files.
* vl/grep-configurable-threads:
grep: add --threads=<num> option and grep.threads configuration
grep: slight refactoring to the code that disables threading
grep: allow threading even on a single-core machine
"git blame" learned to produce the progress eye-candy when it takes
too much time before emitting the first line of the result.
* ea/blame-progress:
blame: add support for --[no-]progress option
Add a framework to spawn a group of processes in parallel, and use
it to run "git fetch --recurse-submodules" in parallel.
Rerolled and this seems to be a lot cleaner. The merge of the
earlier one to 'next' has been reverted.
* sb/submodule-parallel-fetch:
submodules: allow parallel fetching, add tests and documentation
fetch_populated_submodules: use new parallel job processing
run-command: add an asynchronous parallel child processor
sigchain: add command to pop all common signals
strbuf: add strbuf_read_once to read without blocking
xread: poll on non blocking fds
submodule.c: write "Fetching submodule <foo>" to stderr
"branch --delete" has "branch -d" but "push --delete" does not.
* ps/push-delete-option:
push: add '-d' as shorthand for '--delete'
push: add '--delete' flag to synopsis
An earlier change in 2.5.x-era broke users' hooks and aliases by
exporting GIT_WORK_TREE to point at the root of the working tree,
interfering when they tried to use a different working tree without
setting GIT_WORK_TREE environment themselves.
* nd/stop-setenv-work-tree:
Revert "setup: set env $GIT_WORK_TREE when work tree is set, like $GIT_DIR"
init_notes() is the main point of entry to the notes API. It ensures
that the input can be used as ref, because it needs a ref to update to
store notes tree after modifying it.
There however are many use cases where notes tree is only read, e.g.
"git log --notes=...". Any notes-shaped treeish could be used for such
purpose, but it is not allowed due to existing restriction.
Allow treeish expressions to be used in the case the notes tree is going
to be used without write "permissions". Add a flag to distinguish
whether the notes tree is intended to be used read-only, or will be
updated.
With this change, operations that use notes read-only can be fed any
notes-shaped tree-ish can be used, e.g. git log --notes=notes@{1}.
Signed-off-by: Mike Hommey <mh@glandium.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Modify various document (man page) files to explain
in more detail what --signoff means.
This was inspired by https://lwn.net/Articles/669976/ where
paulj noted, "adding [the] '-s' argument to [a] git commit
doesn't really mean you have even heard of the DCO...".
Extending git's documentation will make it easier to argue
that developers understood --signoff when they use it.
Signed-off-by: David A. Wheeler <dwheeler@dwheeler.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
git reflog (ab)uses the log machinery to display its list of log
entries. To do so it must fake commit parent information for the log
walker.
For refs in refs/heads this is no problem, as they should only ever
point to commits. Tags and other refs however can point to anything,
thus their reflog may contain non-commit objects.
To avoid segfaulting, we check whether reflog entries are commits before
feeding them to the log walker and skip any non-commits. This means that
git reflog output will be incomplete for such refs, but that's one step
up from segfaulting. A more complete solution would be to decouple git
reflog from the log walker machinery.
Signed-off-by: Dennis Kaarsemaker <dennis@kaarsemaker.net>
Helped-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
'git replace --edit' should error out when the invoked editor fails,
but the test checking this behavior would not notice if this weren't
the case.
The test in question, ever since it was added in 85f98fc037
(replace: add tests for --edit, 2014-05-17), has simulated a failing
editor in an unconventional way:
test_must_fail env GIT_EDITOR='./fakeeditor;false' git replace --edit
I presume the reason for this unconventional editor was the fact that
'git replace --edit' requires the edited object to be different from
the original, but a mere 'false' as editor would leave the object
unchanged and 'git replace --edit' would error out anyway complaining
about the new and the original object files being the same. Running
'fakeeditor' before 'false' was supposed to ensure that the object
file is modified and thus 'git replace --edit' errors out because of
the failed editor.
However, this editor doesn't actually modify the edited object,
because start_command() turns this editor into:
/bin/sh -c './fakeeditor;false "$@"' './fakeeditor;false' \
'.../.git/REPLACE_EDITOBJ'
This means that the test's fakeeditor script doesn't even get the path
of the object to be edited as argument, triggering error messages from
the commands executed inside the script ('sed' and 'mv'), and
ultimately leaving the object file unchanged.
If a patch were to remove the die() from the error path after
launch_editor(), the test would not catch it, because 'git replace'
would continue execution past launch_editor() and would error out a
bit later due to the unchanged edited object. Though 'git replace'
would error out for the wrong reason, this would satisfy
'test_must_fail' just as well, and the test would succeed leaving the
undesired change unnoticed.
Create a proper failing fake editor script for this test to ensure
that the edited object is in fact modified and 'git replace --edit'
won't error out because the new and original object files are the
same.
Signed-off-by: SZEDER Gábor <szeder@ira.uka.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
These were introduced back in 2006 at 3175aa1ec2 but
never documented.
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
History traversal with "git log --source" that starts with an
annotated tag failed to report the tag as "source", due to an
old regression in the command line parser back in v2.2 days.
* jk/pending-keep-tag-name:
revision.c: propagate tag names from pending array
"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()
When getpwuid() on the system returned NULL (e.g. the user is not
in the /etc/passwd file or other uid-to-name mappings), the
codepath to find who the user is to record it in the reflog barfed
and died. Loosen the check in this codepath, which already accepts
questionable ident string (e.g. host part of the e-mail address is
obviously bogus), and in general when we operate fmt_ident() function
in non-strict mode.
* jk/ident-loosen-getpwuid:
ident: loosen getpwuid error in non-strict mode
ident: keep a flag for bogus default_email
ident: make xgetpwuid_self() a static local helper
The completion script (in contrib/) used to list "git column"
(which is not an end-user facing command) as one of the choices
* sg/completion-no-column:
completion: remove 'git column' from porcelain commands
mutt saves aliases with escaped quotes in the form of:
alias dot \"Dot U. Sir\" <somebody@example.org>
When we pass through our sanitize_address routine,
we end up with double-escaping:
To: "\\\"Dot U. Sir\\\" <somebody@example.org>
Remove the escaping in mutt only for now, as I am not sure
if other mailers can do this or if this is better fixed in
sanitize_address.
Cc: Remi Lespinet <remi.lespinet@ensimag.grenoble-inp.fr>
Cc: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The byte-swapping code automatically decides, based on the
platform, whether it is sensible to cast and do a potentially
unaligned ntohl(), or to pick individual bytes out of an
array.
It can be handy to override this decision, though, when
turning on compiler flags that will complain about unaligned
loads (such as -fsanitize=undefined). This patch adds a
macro check to make this possible.
There's no nice Makefile knob here; this is for prodding at
Git's internals, and anybody using it can set
"-DNO_UNALIGNED_LOADS" in the same place they are setting up
"-fsanitize".
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We sometimes use 32-bit unsigned integers as bit-fields.
It's fine to access the MSB, because it's unsigned. However,
doing so as "1 << 31" is wrong, because the constant "1" is
a signed int, and we shift into the sign bit, causing
undefined behavior.
We can fix this by using "1U" as the constant.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Rework the section on gitweb to add information about the cgi script
and the instaweb command.
Signed-off-by: Stephen P. Smith <ischis2@cox.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
There are several places in the documentation that
the term shallow clone is used. Defining the term
enables its use elsewhere with a known definition.
Signed-off-by: Stephen P. Smith <ischis2@cox.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When git executes a sub-command, we print a warning if the
command dies due to a signal, but make an exception for
"uninteresting" cases like SIGINT and SIGQUIT (since the
user presumably just hit ^C).
We should make a similar exception for SIGPIPE, because it's
an expected and uninteresting return in most cases; it
generally means the user quit the pager before git had
finished generating all output. This used to be very hard
to trigger in practice, because:
1. We only complain if we see a real SIGPIPE death, not
the shell-induced 141 exit code. This means that
anything we run via the shell does not trigger the
warning, which includes most non-trivial aliases.
2. The common case for SIGPIPE is the user quitting the
pager before git has finished generating all output.
But if the user triggers a pager with "-p", we redirect
the git wrapper's stderr to that pager, too. Since the
pager is dead, it means that the message goes nowhere.
3. You can see it if you run your own pager, like
"git foo | head". But that only happens if "foo" is a
non-builtin (so it doesn't work with "log", for
example).
However, it may become more common after 86d26f2, which
teaches alias to re-exec builtins rather than running them
in the same process. This case doesn't trigger (1), as we
don't need a shell to run a git command. It doesn't trigger
(2), because the pager is not started by the original git,
but by the inner re-exec of git. And it doesn't trigger (3),
because builtins are treated more like non-builtins in this
case.
Given how flaky this message already is (e.g., you cannot
even know whether you will see it, as git optimizes out some
shell invocations behind the scenes based on the contents of
the command!), and that it is unlikely to ever provide
useful information, let's suppress it for all cases of
SIGPIPE.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git p4" when interacting with multiple depots at the same time
used to incorrectly drop changes.
* sh/p4-multi-depot:
git-p4: reduce number of server queries for fetches
git-p4: support multiple depot paths in p4 submit
git-p4: failing test case for skipping changes with multiple depots
History traversal with "git log --source" that starts with an
annotated tag failed to report the tag as "source", due to an
old regression in the command line parser back in v2.2 days.
* jk/pending-keep-tag-name:
revision.c: propagate tag names from pending array
"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()
