The run-command interface was easy to abuse and make a pipe for us
to read from the process, wait for the process to finish and then
attempt to read its output, which is a pattern that lead to a
deadlock. Fix such uses by introducing a helper to do this
correctly (i.e. we need to read first and then wait the process to
finish) and also add code to prevent such abuse in the run-command
helper.
* jk/run-command-capture:
run-command: forbid using run_command with piped output
trailer: use capture_command
submodule: use capture_command
wt-status: use capture_command
run-command: introduce capture_command helper
wt_status: fix signedness mismatch in strbuf_read call
wt-status: don't flush before running "submodule status"
When we spawn "git submodule status" to read its output, we
use run_command() followed by strbuf_read() read from the
pipe. This can deadlock if the subprocess output is larger
than the system pipe buffer.
Furthermore, if start_command() fails, we'll try to read
from a bogus descriptor (probably "-1" or a descriptor we
just closed, but it is a bad idea for us to make assumptions
about how start_command implements its error handling). And
if start_command succeeds, we leak the file descriptor for
the pipe to the child.
All of these can be solved by using the capture_command
helper.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We call strbuf_read(), and want to know whether we got any
output. To do so, we assign the result to a size_t, and
check whether it is non-zero.
But strbuf_read returns a signed ssize_t. If it encounters
an error, it will return -1, and we'll end up treating this
the same as if we had gotten output. Instead, we can just
check whether our buffer has anything in it (which is what
we care about anyway, and is the same thing since we know
the buffer was empty to begin with).
Note that the "len" variable actually has two roles in this
function. Now that we've eliminated the first, we can push the
declaration closer to the point of use for the second one.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This is a holdover from the original implementation in
ac8d5af (builtin-status: submodule summary support,
2008-04-12), which just had the sub-process output to our
descriptor; we had to make sure we had flushed any data that
we produced before it started writing.
Since 3ba7407 (submodule summary: ignore --for-status
option, 2013-09-06), however, we pipe the sub-process output
back to ourselves. So there's no longer any need to flush
(it does not hurt, but it may leave readers wondering why we
do it).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git branch" on a detached HEAD always said "(detached from xyz)",
even when "git status" would report "detached at xyz". The HEAD is
actually at xyz and haven't been moved since it was detached in
such a case, but the user cannot read what the current value of
HEAD is when "detached from" is used.
* mg/detached-head-report:
branch: name detached HEAD analogous to status
wt-status: refactor detached HEAD analysis
"git status" now allows the "-v" to be given twice to show the
differences that are left in the working tree not to be committed.
* mg/status-v-v:
commit/status: show the index-worktree diff with -v -v
t7508: test git status -v
t7508: .gitignore 'expect' and 'output' files
wt_status_print() is the only caller of wt_status_get_detached_from().
The latter performs most of the analysis of a detached HEAD, including
finding state->detached_from; the caller checks whether the detached
HEAD is still at state->detached_from or has moved away.
Move that last bit of analysis to wt_status_get_detached_from(), too,
and store the boolean result in state->detached_at.
Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
git commit and git status in long format show the diff between HEAD
and the index when given -v. This allows previewing a commit to be made.
They also list tracked files with unstaged changes, but without a diff.
Introduce '-v -v' which shows the diff between the index and the
worktree in addition to the HEAD index diff. This allows a review of unstaged
changes which might be missing from the commit.
In the case of '-v -v', additonal header lines
Changes to be committed:
and
Changes not staged for commit:
are inserted before the diffs, which are equal to those in the status
part; the latter preceded by 50*"-" to make it stick out more.
Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Code to read branch name from various files in .git/ directory
would have misbehaved if the code to write them left an empty file.
* jk/status-read-branch-name-fix:
read_and_strip_branch: fix typo'd address-of operator
Code to read branch name from various files in .git/ directory
would have misbehaved if the code to write them left an empty file.
* jk/status-read-branch-name-fix:
read_and_strip_branch: fix typo'd address-of operator
When we are chomping newlines from the end of a strbuf, we
must check "sb.len != 0" before accessing "sb.buf[sb.len - 1]".
However, this code mistakenly checks "&sb.len", which is
always true (it is a part of an auto struct, so the address
is always non-zero). This could lead to us accessing memory
outside the strbuf when we read an empty file.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Convert users of struct child_process to using the managed argv_array
args instead of providing their own. This shortens the code a bit and
ensures that the allocated memory is released automatically after use.
Suggested-by: Jeff King <peff@peff.net>
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Add managed "env" array to child_process to clarify the lifetime
rules.
* rs/run-command-env-array:
use env_array member of struct child_process
run-command: add env_array, an optional argv_array for env
Convert users of struct child_process to using the managed env_array for
specifying environment variables instead of supplying an array on the
stack or bringing their own argv_array. This shortens and simplifies
the code and ensures automatically that the allocated memory is freed
after use.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
resolve_ref_unsafe takes a boolean argument for reading (a nonexistent ref
resolves successfully for writing but not for reading). Change this to be
a flags field instead, and pass the new constant RESOLVE_REF_READING when
we want this behaviour.
While at it, swap two of the arguments in the function to put output
arguments at the end. As a nice side effect, this ensures that we can
catch callers that were unaware of the new API so they can be audited.
Give the wrapper functions resolve_refdup and read_ref_full the same
treatment for consistency.
Signed-off-by: Ronnie Sahlberg <sahlberg@google.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Most struct child_process variables are cleared using memset first after
declaration. Provide a macro, CHILD_PROCESS_INIT, that can be used to
initialize them statically instead. That's shorter, doesn't require a
function call and is slightly more readable (especially given that we
already have STRBUF_INIT, ARGV_ARRAY_INIT etc.).
Helped-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* kb/perf-trace:
api-trace.txt: add trace API documentation
progress: simplify performance measurement by using getnanotime()
wt-status: simplify performance measurement by using getnanotime()
git: add performance tracing for git's main() function to debug scripts
trace: add trace_performance facility to debug performance issues
trace: add high resolution timer function to debug performance issues
trace: add 'file:line' to all trace output
trace: move code around, in preparation to file:line output
trace: add current timestamp to all trace output
trace: disable additional trace output for unit tests
trace: add infrastructure to augment trace output with additional info
sha1_file: change GIT_TRACE_PACK_ACCESS logging to use trace API
Documentation/git.txt: improve documentation of 'GIT_TRACE*' variables
trace: improve trace performance
trace: remove redundant printf format attribute
trace: consistently name the format parameter
trace: move trace declarations from cache.h to new trace.h
Calculating duration from a single uint64_t is simpler than from a struct
timeval. Change performance measurement for 'advice.statusuoption' from
gettimeofday() to getnanotime().
Also initialize t_begin to prevent uninitialized variable warning.
Signed-off-by: Karsten Blees <blees@dcon.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Use argv_array_pushf for building the number string for the option
--summary-limit directly instead of using an intermediate buffer.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Instead of using a PATH_MAX buffer, use argv_array for constructing the
environment for git submodule summary. This simplifies the code a bit
and removes the arbitrary length limit.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git status" (and "git commit") behaved as if changes in a modified
submodule are not there if submodule.*.ignore configuration is set,
which was misleading. The configuration is only to unclutter diff
output during the course of development, and should not to hide
changes in the "status" output to cause the users forget to commit
them.
* jl/status-added-submodule-is-never-ignored:
commit -m: commit staged submodules regardless of ignore config
status/commit: show staged submodules regardless of ignore config
submodule.*.ignore and diff.ignoresubmodules are used to ignore all
submodule changes in "diff" output, but it can be confusing to
apply these configuration values to status and commit.
This is a backward-incompatible change, but should be so in a good
way (aka bugfix).
* jl/status-added-submodule-is-never-ignored:
commit -m: commit staged submodules regardless of ignore config
status/commit: show staged submodules regardless of ignore config
This can be observed in many versions of gcc and still exists with 4.9.0:
wt-status.c: In function ‘wt_status_print_unmerged_header’:
wt-status.c:191:2: warning: zero-length gnu_printf format string [-Wformat-zero-length]
status_printf_ln(s, c, "");
^
The user have long been told to pass -Wno-format-zero-length, but a
patch that avoids warning altogether is not too noisy, so let's do
so.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Currently setting submodule.<name>.ignore and/or diff.ignoreSubmodules to
"all" suppresses all output of submodule changes for the diff family,
status and commit. For status and commit this is really confusing, as it
even when the user chooses to record a new commit for an ignored submodule
by adding it manually this change won't show up under the to-be-committed
changes. To add insult to injury, a later "git commit" will error out with
"nothing to commit" when only ignored submodules are staged.
Fix that by making wt_status always print staged submodule changes, no
matter what ignore settings are configured. The only exception is when the
user explicitly uses the "--ignore-submodules=all" command line option, in
that case the submodule output is still suppressed. This also makes "git
commit" work again when only modifications of ignored submodules are
staged, as that command uses the "commitable" member of the wt_status
struct to determine if staged changes are present. But this only happens
when the commit command uses the wt_status* functions to produce status
output for human consumption (when forking an editor or with --dry-run),
in all other cases (e.g. when run in a script with '-m') another code path
is taken which uses index_differs_from() to determine if any changes are
staged which still ignores submodules according to their configuration.
This will be fixed in a follow-up commit.
Change t7508 to reflect this new behavior and add three new tests to show
that a single staged submodule configured to be ignored will be committed
when the status output is generated and won't be if not. Also update the
documentation of the ignore config options accordingly.
Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git status --branch --porcelain" displays the status of the branch
(ahead, behind, gone), and used gettext to translate the string.
Use hardcoded strings when --porcelain is used, but keep the gettext
translation for "git status --short" which is essentially the same, but
meant to be read by a human.
Reported-by: Anarky <ghostanarky@gmail.com>
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git commit --cleanup=<mode>" learned a new mode, scissors.
* nd/commit-editor-cleanup:
commit: add --cleanup=scissors
wt-status.c: move cut-line print code out to wt_status_add_cut_line
wt-status.c: make cut_line[] const to shrink .data section a bit
Unify the codepaths that format new/modified/changed sections and
conflicted paths in the "git status" output and make it possible to
properly internationalize their output.
* jn/wt-status:
wt-status: lift the artificual "at least 20 columns" floor
wt-status: i18n of section labels
wt-status: extract the code to compute width for labels
wt-status: make full label string to be subject to l10n
When we show unmerged paths, we had an artificial 20 columns floor
for the width of labels (e.g. "both deleted:") shown next to the
pathnames. Depending on the locale, this may result in a label that
is too wide when all the label strings are way shorter than 20
columns, or no-op when a label string is longer than 20 columns.
Just drop the artificial floor. The screen real estate is better
utilized this way when all the strings are shorter.
Adjust the tests to this change.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The original code assumes that:
(1) the number of bytes written is the width of a string, so they
can line up;
(2) the "how" string is always <= 19 bytes.
Neither of which we should assume.
Using the same approach as the earlier 3651e45c (wt-status: take the
alignment burden off translators, 2013-11-05), compute the necessary
column width to hold the longest label and use that for alignment.
cf. http://bugs.debian.org/725777
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Helped-by: Sandy Carter
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Earlier in 3651e45c (wt-status: take the alignment burden off
translators, 2013-11-05), we assumed that it is OK to make the
string before the colon in a label string we give as the section
header of various kinds of changes (e.g. "new file:") translatable.
This assumption apparently does not hold for some languages,
e.g. ones that want to have spaces around the colon.
Also introduce a static label_width to avoid having to run
strlen(padding) over and over.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This helps reduce the number of match_pathspec_depth() call sites and
show how m_p_d() is used. And it usage is:
- match against an index entry (ce_path_match or match_pathspec_depth
in ls-files)
- match against a dir_entry from read_directory (dir_path_match and
match_pathspec_depth in clean.c, which will be converted later)
- resolve-undo (rerere.c and ls-files.c)
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This helps reduce the number of match_pathspec_depth() call sites and
show how match_pathspec_depth() is used.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Remove a few duplicate implementations of prefix/suffix comparison
functions, and rename them to starts_with and ends_with.
* cc/starts-n-ends-with:
replace {pre,suf}fixcmp() with {starts,ends}_with()
strbuf: introduce starts_with() and ends_with()
builtin/remote: remove postfixcmp() and use suffixcmp() instead
environment: normalize use of prefixcmp() by removing " != 0"
"git commit -v" appends the patch to the log message before
editing, and then removes the patch when the editor returned
control. However, the patch was not stripped correctly when the
first modified path was a submodule.
* jl/commit-v-strip-marker:
commit -v: strip diffs and submodule shortlogs from the commit message
When using the '-v' option of "git commit" the diff added to the commit
message temporarily for editing is stripped off after the user exited the
editor by searching for "\ndiff --git " and truncating the commmit message
there if it is found.
But this approach has two problems:
- when the commit message itself contains a line starting with
"diff --git" it will be truncated there prematurely; and
- when the "diff.submodule" setting is set to "log", the diff may
start with "Submodule <hash1>..<hash2>", which will be left in
the commit message while it shouldn't.
Fix that by introducing a special scissor separator line starting with the
comment character ('#' or the core.commentChar config if set) followed by
two lines describing what it is for. The scissor line - which will not be
translated - is used to reliably detect the start of the diff so it can be
chopped off from the commit message, no matter what the user enters there.
Turn a known test failure fixed by this change into a successful test;
also add one for a diff starting with a submodule log and another one for
proper handling of the comment char.
Reported-by: Ari Pollak <ari@debian.org>
Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Leaving only the function definitions and declarations so that any
new topic in flight can still make use of the old functions, replace
existing uses of the prefixcmp() and suffixcmp() with new API
functions.
The change can be recreated by mechanically applying this:
$ git grep -l -e prefixcmp -e suffixcmp -- \*.c |
grep -v strbuf\\.c |
xargs perl -pi -e '
s|!prefixcmp\(|starts_with\(|g;
s|prefixcmp\(|!starts_with\(|g;
s|!suffixcmp\(|ends_with\(|g;
s|suffixcmp\(|!ends_with\(|g;
'
on the result of preparatory changes in this series.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
It's not easy for translators to see spaces in these strings have to
align, especially when there are no guarantees that these strings are
grouped together in .po files. Refactor the code and do the alignment
automatically.
Noticed-by: Wolfgang Rohdewald <wolfgang@rohdewald.de>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
From the commit log template, remove irrelevant "advice" messages
that are shared with "git status" output.
* mm/commit-template-squelch-advice-messages:
commit: disable status hints when writing to COMMIT_EDITMSG
wt-status: turn advice_status_hints into a field of wt_status
commit: factor status configuration is a helper function
"git status" now omits the prefix to make its output a comment in a
commit log editor, which is not necessary for human consumption.
We may want to tighten the output to omit unnecessary trailing blank
lines, but that does not have to be in the scope of this series.
* mm/status-without-comment-char:
t7508: avoid non-portable sed expression
status: add missing blank line after list of "other" files
tests: don't set status.displayCommentPrefix file-wide
status: disable display of '#' comment prefix by default
submodule summary: ignore --for-status option
wt-status: use argv_array API
builtin/stripspace.c: fix broken indentation
"git branch -v -v" (and "git status") did not distinguish among a
branch that does not build on any other branch, a branch that is in
sync with the branch it builds on, and a branch that is configured
to build on some other branch that no longer exists.
* jx/branch-vv-always-compare-with-upstream:
status: always show tracking branch even no change
branch: report invalid tracking branch as gone
No behavior change in this patch, but this makes the display of status
hints more flexible as they can be enabled or disabled for individual
calls to commit.c:run_status().
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git mv A B" when moving a submodule A does "the right thing",
inclusing relocating its working tree and adjusting the paths in
the .gitmodules file.
* jl/submodule-mv: (53 commits)
rm: delete .gitmodules entry of submodules removed from the work tree
mv: update the path entry in .gitmodules for moved submodules
submodule.c: add .gitmodules staging helper functions
mv: move submodules using a gitfile
mv: move submodules together with their work trees
rm: do not set a variable twice without intermediate reading.
t6131 - skip tests if on case-insensitive file system
parse_pathspec: accept :(icase)path syntax
pathspec: support :(glob) syntax
pathspec: make --literal-pathspecs disable pathspec magic
pathspec: support :(literal) syntax for noglob pathspec
kill limit_pathspec_to_literal() as it's only used by parse_pathspec()
parse_pathspec: preserve prefix length via PATHSPEC_PREFIX_ORIGIN
parse_pathspec: make sure the prefix part is wildcard-free
rename field "raw" to "_raw" in struct pathspec
tree-diff: remove the use of pathspec's raw[] in follow-rename codepath
remove match_pathspec() in favor of match_pathspec_depth()
remove init_pathspec() in favor of parse_pathspec()
remove diff_tree_{setup,release}_paths
convert common_prefix() to use struct pathspec
...
List of files in other sections ("Changes to be committed", ...) end with
a blank line. It is not the case with the "Untracked files" and "Ignored
files" sections. The issue become particularly visible after the #-prefix
removal, as the last line (e.g. "nothing added to commit but untracked
files present") seems mixed with the untracked files.
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
