Improve error handling when parsing dirstat parameters
When encountering errors or unknown tokens while parsing parameters to the
--dirstat option, it makes sense to die() with an error message informing
the user of which parameter did not make sense. However, when parsing the
diff.dirstat config variable, we cannot simply die(), but should instead
(after warning the user) ignore the erroneous or unrecognized parameter.
After all, future Git versions might add more dirstat parameters, and
using two different Git versions on the same repo should not cripple the
older Git version just because of a parameter that is only understood by
a more recent Git version.
This patch fixes the issue by refactoring the dirstat parameter parsing
so that parse_dirstat_params() keeps on parsing parameters, even if an
earlier parameter was not recognized. When parsing has finished, it returns
zero if all parameters were successfully parsed, and non-zero if one or
more parameters were not recognized (with appropriate error messages
appended to the 'errmsg' argument).
The parse_dirstat_params() callers then decide (based on the return value
from parse_dirstat_params()) whether to warn and ignore (in case of
diff.dirstat), or to warn and die (in case of --dirstat).
The patch also adds a couple of tests verifying the correct behavior of
--dirstat and diff.dirstat in the face of unknown (possibly future) dirstat
parameters.
Suggested-by: Junio C Hamano <gitster@pobox.com> Improved-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
New --dirstat=lines mode, doing dirstat analysis based on diffstat
This patch adds an alternative implementation of show_dirstat(), called
show_dirstat_by_line(), which uses the more expensive diffstat analysis
(as opposed to show_dirstat()'s own (relatively inexpensive) analysis)
to derive the numbers from which the --dirstat output is computed.
The alternative implementation is controlled by the new "lines" parameter
to the --dirstat option (or the diff.dirstat config variable).
For binary files, the diffstat analysis counts bytes instead of lines,
so to prevent binary files from dominating the dirstat results, the
byte counts for binary files are divided by 64 before being compared to
their textual/line-based counterparts. This is a stupid and ugly - but
very cheap - heuristic.
In linux-2.6.git, running the three different --dirstat modes:
time git diff v2.6.20..v2.6.30 --dirstat=changes > /dev/null
vs.
time git diff v2.6.20..v2.6.30 --dirstat=lines > /dev/null
vs.
time git diff v2.6.20..v2.6.30 --dirstat=files > /dev/null
yields the following average runtimes on my machine:
- "changes" (default): ~6.0 s
- "lines": ~9.6 s
- "files": ~0.1 s
So, as expected, there's a considerable performance hit (~60%) by going
through the full diffstat analysis as compared to the default "changes"
analysis (obviously, "files" is much faster than both). As such, the
"lines" mode is probably only useful if you really need the --dirstat
numbers to be consistent with the numbers returned from the other
--*stat options.
The patch also includes documentation and tests for the new dirstat mode.
Improved-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Allow specifying --dirstat cut-off percentage as a floating point number
Only the first digit after the decimal point is kept, as the dirstat
calculations all happen in permille.
Selftests verifying floating-point percentage input has been added.
Improved-by: Junio C Hamano <gitster@pobox.com> Improved-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Add config variable for specifying default --dirstat behavior
The new diff.dirstat config variable takes the same arguments as
'--dirstat=<args>', and specifies the default arguments for --dirstat.
The config is obviously overridden by --dirstat arguments passed on the
command line.
When not specified, the --dirstat defaults are 'changes,noncumulative,3'.
The patch also adds several tests verifying the interaction between the
diff.dirstat config variable, and the --dirstat command line option.
Improved-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Refactor --dirstat parsing; deprecate --cumulative and --dirstat-by-file
Instead of having multiple interconnected dirstat-related options, teach
the --dirstat option itself to accept all behavior modifiers as parameters.
- Preserve the current --dirstat=<limit> (where <limit> is an integer
specifying a cut-off percentage)
- Add --dirstat=cumulative, replacing --cumulative
- Add --dirstat=files, replacing --dirstat-by-file
- Also add --dirstat=changes and --dirstat=noncumulative for specifying the
current default behavior. These allow the user to reset other --dirstat
parameters (e.g. 'cumulative' and 'files') occuring earlier on the
command line.
The deprecated options (--cumulative and --dirstat-by-file) are still
functional, although they have been removed from the documentation.
Allow multiple parameters to be separated by commas, e.g.:
--dirstat=files,10,cumulative
Update the documentation accordingly, and add testcases verifying the
behavior of the new syntax.
Improved-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Make --dirstat=0 output directories that contribute < 0.1% of changes
The expected output from --dirstat=0, is to include any directory with
changes, even if those changes contribute a minuscule portion of the total
changes. However, currently, directories that contribute less than 0.1% are
not included, since their 'permille' value is 0, and there is an
'if (permille)' check in gather_dirstat() that causes them to be ignored.
This test is obviously intended to exclude directories that contribute no
changes whatsoever, but in this case, it hits too broadly. The correct
check is against 'this_dir' from which the permille is calculated. Only if
this value is 0 does the directory truly contribute no changes, and should
be skipped from the output.
This patches fixes this issue, and updates corresponding testcases to
expect the new behvaior.
Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Currently, t4013 is the only selftest that exercises the --dirstat machinery,
but it only does a superficial verification of --dirstat's output.
This patch adds a new selftest - t4047-diff-dirstat.sh - which prepares a
commit containing:
- unchanged files, changed files and files with rearranged lines
- copied files, moved files, and unmoved files
It then verifies the correct dirstat output for that commit in the following
dirstat modes:
- --dirstat
- -X
- --dirstat=0
- -X0
- --cumulative
- --dirstat-by-file
- (plus combinations of the above)
Each of the above tests are also run with:
- no rename detection
- rename detection (-M)
- expensive copy detection (-C -C)
Improved-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Since 9d8a5a5 (diffcore-rename: refactor "too many candidates" logic,
2011-01-06), diffcore_rename() initializes num_src but does not use it
anymore. "-Wunused-but-set-variable" in gcc-4.6 complains about this.
Signed-off-by: Jim Meyering <meyering@redhat.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* jc/rename-degrade-cc-to-c:
diffcore-rename: fall back to -C when -C -C busts the rename limit
diffcore-rename: record filepair for rename src
diffcore-rename: refactor "too many candidates" logic
builtin/diff.c: remove duplicated call to diff_result_code()
* mz/rebase: (34 commits)
rebase: define options in OPTIONS_SPEC
Makefile: do not install sourced rebase scripts
rebase: use @{upstream} if no upstream specified
rebase -i: remove unnecessary state rebase-root
rebase -i: don't read unused variable preserve_merges
git-rebase--am: remove unnecessary --3way option
rebase -m: don't print exit code 2 when merge fails
rebase -m: remember allow_rerere_autoupdate option
rebase: remember strategy and strategy options
rebase: remember verbose option
rebase: extract code for writing basic state
rebase: factor out sub command handling
rebase: make -v a tiny bit more verbose
rebase -i: align variable names
rebase: show consistent conflict resolution hint
rebase: extract am code to new source file
rebase: extract merge code to new source file
rebase: remove $branch as synonym for $orig_head
rebase -i: support --stat
rebase: factor out call to pre-rebase hook
...
* en/merge-recursive:
merge-recursive: tweak magic band-aid
merge-recursive: When we detect we can skip an update, actually skip it
t6022: New test checking for unnecessary updates of files in D/F conflicts
t6022: New test checking for unnecessary updates of renamed+modified files
* jh/dirstat:
--dirstat: In case of renames, use target filename instead of source filename
Teach --dirstat not to completely ignore rearranged lines within a file
--dirstat-by-file: Make it faster and more correct
--dirstat: Describe non-obvious differences relative to --stat or regular diff
* rr/doc-content-type:
Documentation: Allow custom diff tools to be specified in 'diff.tool'
Documentation: Add diff.<driver>.* to config
Documentation: Move diff.<driver>.* from config.txt to diff-config.txt
Documentation: Add filter.<driver>.* to config
* rj/sparse:
sparse: Fix some "symbol not declared" warnings
sparse: Fix errors due to missing target-specific variables
sparse: Fix an "symbol 'merge_file' not decared" warning
sparse: Fix an "symbol 'format_subject' not declared" warning
sparse: Fix some "Using plain integer as NULL pointer" warnings
sparse: Fix an "symbol 'cmd_index_pack' not declared" warning
Makefile: Use cgcc rather than sparse in the check target
* mg/reflog-with-options:
reflog: fix overriding of command line options
t/t1411: test reflog with formats
builtin/log.c: separate default and setup of cmd_log_init()
After posting a short request using CURLOPT_POSTFIELDS, if the slot
is reused for posting a large payload, the slot ends up having both
POSTFIELDS (which now points at a random garbage) and READFUNCTION,
in which case the curl library tries to use the stale POSTFIELDS.
Clear it as part of the general slot initialization in get_active_slot().
Heavylifting-by: Shawn Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <gitster@pobox.com> Acked-by: Shawn Pearce <spearce@spearce.org>
The symbols in attr.c only require file scope, so we add the static
modifier to their declaration.
The symbols in vcs-svn/svndump.c are external symbols, and they
already have extern declarations in the "svndump.h" header file,
so we simply include the header in svndump.c.
Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
which is caused by not passing the target-specific additions to
the EXTRA_CPPFLAGS variable to cgcc.
In order to fix the problem, we define a new sparse target which
depends on a set of non-existent "sparse object" files (*.sp)
which correspond to the set of C source files. In addition to the
new target, we also provide a new pattern rule for "creating" the
sparse object files from the source files by running cgcc. This
allows us to add '*.sp' to the rules setting the target-specific
EXTRA_CPPFLAGS variable, which is then included in the new pattern
rule to run cgcc.
Also, we change the 'check' target to re-direct the user to the
new sparse target.
Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
date: avoid "X years, 12 months" in relative dates
When relative dates are more than about a year ago, we start
writing them as "Y years, M months". At the point where we
calculate Y and M, we have the time delta specified as a
number of days. We calculate these integers as:
Y = days / 365
M = (days % 365 + 15) / 30
This rounds days in the latter half of a month up to the
nearest month, so that day 16 is "1 month" (or day 381 is "1
year, 1 month").
We don't round the year at all, though, meaning we can end
up with "1 year, 12 months", which is silly; it should just
be "2 years".
archive: document limitation of tar.umask config setting
The local value of the config variable tar.umask is not passed to the
other side with --remote. We may want to change that, but for now just
document this fact.
Reported-by: Jacek Masiulaniec <jacek.masiulaniec@gmail.com> Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
On systems where the local time and file modification time may be out of
sync (e.g. test directory on NFS) t3306 and t5305 can fail because prune
compares times such as "now" (client time) with file modification times
(server times for remote file systems). I.e., these are spurious test
failures.
Avoid this by setting the relevant modification times to the local time.
Noticed on a system with as little as 2s time skew.
Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Remove a spurious empty line which prevented asciidoc from recognizing a
list continuation mark ('+'), so that it does not get output literally any
more.
Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
remove doubled words, e.g., s/to to/to/, and fix related typos
I found that some doubled words had snuck back into projects from which
I'd already removed them, so now there's a "syntax-check" makefile rule in
gnulib to help prevent recurrence.
Running the command below spotted a few in git, too:
The '-r' command-line option is a no-op provided only for backward
compatiblity since abd6970 (cherry-pick: make -r the default, 2006-10-05),
and somehow ended up surviving across reimplementation in C at 9509af6
(Make git-revert & git-cherry-pick a builtin, 2007-03-01) and another
rewrite of the command line parser at f810379 (Make builtin-revert.c use
parse_options, 2007-10-07). We should have stopped advertising the option
long time ago.
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The --quiet flag is not meant to be passed on to the diff, as the user
always wants the patches to be produced so catch it and pass it to
reopen_stdout which decides whether to print the filename or not.
Noticed by Paul Gortmaker
Signed-off-by: Carlos Martín Nieto <cmn@elego.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
--dirstat: In case of renames, use target filename instead of source filename
This changes --dirstat analysis to count "damage" toward the target filename,
rather than the source filename. For renames within a directory, this won't
matter to the final output, but when moving files between diretories, the
output now lists the target directory rather than the source directory.
Signed-off-by: Johan Herland <johan@herland.net> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
parse_value in config.c has a static buffer of 1024 bytes that it
parse the value into. This can sometimes be a problem when a
config file contains very long values.
It's particularly amusing that git-config already is able to write
such files, so it should probably be able to read them as well.
Fix this by using a strbuf instead of a fixed-size buffer.
Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com> Acked-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
strbuf_init does not zero-terminate the initial buffer when hint is
non-zero. Fix this so we can rely on the string to be zero-terminated
even if we haven't filled it with anything yet.
Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com> Acked-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Teach --dirstat not to completely ignore rearranged lines within a file
Currently, the --dirstat analysis ignores when lines within a file are
rearranged, because the "damage" calculated by show_dirstat() is 0.
However, if the object name has changed, we already know that there is
some damage, and it is unintuitive to claim there is _no_ damage.
Teach show_dirstat() to assign a minimum amount of damage (== 1) to
entries for which the analysis otherwise yields zero damage, to still
represent that these files are changed, instead of saying that there
is no change.
Also, skip --dirstat analysis when the object names are the same (e.g. for
a pure file rename).
Signed-off-by: Johan Herland <johan@herland.net> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
sparse: Fix an "symbol 'merge_file' not decared" warning
In order to fix the warning, we add a new "merge-file.h" header
containing the extern declaration of the merge_file() function,
and include the header in the source files that require the
declaration.
Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
sparse: Fix an "symbol 'format_subject' not declared" warning
In order to fix the warning, we add an extern declaration for this
function to the "commit.h" header file, along with all other non-
static functions defined in pretty.c. Also, we remove the function
declaration from builtin/shortlog.c, since it is no longer needed.
Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Makefile: Use cgcc rather than sparse in the check target
cgcc is the recommended way to run sparse, since it provides
many -Defines suitable for the given gcc platform. Using an
"cgcc -no-compile" command runs sparse, with all the platform
specific definitions provided by cgcc, without also invoking
gcc.
Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Makefile: extract Q_() source strings as ngettext()
The Q_() wrapper added by 0c9ea33 (i18n: add stub Q_() wrapper for
ngettext, 2011-03-09) needs to be noticed by xgettext.
Add an appropriate --keyword option to the Makefile, so that "make pot"
would notice the strings in the plural form marked with the wrapper.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
i18n: avoid parenthesized string as array initializer
The syntax
static const char ignore_error[] = ("something");
is invalid C. A parenthesized string is not allowed as an array
initializer.
Some compilers, for example GCC and MSVC, allow this syntax as an
extension, but it is not a portable construct. tcc does not parse it, for
example.
Remove the parenthesis from the definition of the N_() macro to
fix this.
Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Acked-by: Jonathan Nieder <jrnieder@gmail.com> Acked-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
--dirstat-by-file: Make it faster and more correct
Currently, when using --dirstat-by-file, it first does the full --dirstat
analysis (using diffcore_count_changes()), and then resets 'damage' to 1,
if any damage was found by diffcore_count_changes().
But --dirstat-by-file is not interested in the file damage per se. It only
cares if the file changed at all. In that sense it only cares if the blob
object for a file has changed. We therefore only need to compare the
object names of each file pair in the diff queue and we can skip the
entire --dirstat analysis and simply set 'damage' to 1 for each entry
where the object name has changed.
This makes --dirstat-by-file faster, and also bypasses --dirstat's practice
of ignoring rearranged lines within a file.
The patch also contains an added testcase verifying that --dirstat-by-file
now detects changes that only rearrange lines within a file.
Signed-off-by: Johan Herland <johan@herland.net> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
--dirstat: Describe non-obvious differences relative to --stat or regular diff
Also add a testcase documenting the current behavior.
Improved-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Johan Herland <johan@herland.net> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* git://git.kernel.org/pub/scm/gitk/gitk:
gitk: Update cherry-pick error message parsing
gitk: Quote tag names in event bindings to avoid problems with % chars
gitk: Allow user to control how much of the SHA1 ID gets auto-selected
gitk: spelling fixes in Russian translation
gitk: Take only numeric version components when computing $git_version
git-svn: Cache results of running the executable "git config"
Running programs is not cheap!
Signed-off-by: James Y Knight <jknight@itasoftware.com> Signed-off-by: Alejandro R. Sedeño <asedeno@mit.edu> Acked-by: Eric Wong <normalperson@yhbt.net>
git-svn: Add a svn-remote.<name>.pushurl config key
Similar to the 'remote.<name>.pushurl' config key for git remotes,
'pushurl' is designed to be used in cases where 'url' points to an SVN
repository via a read-only transport, to provide an alternate
read/write transport. It is assumed that both keys point to the same
repository.
The 'pushurl' key is distinct from the 'commiturl' key in that
'commiturl' is a full svn path while 'pushurl' (like 'url') is a base
path. 'commiturl' takes precendece over 'pushurl' in cases where
either might be used.
The 'pushurl' is used by git-svn's dcommit and branch commands.
Signed-off-by: Alejandro R. Sedeño <asedeno@mit.edu> Reviewed-by: James Y Knight <jknight@itasoftware.com> Acked-by: Eric Wong <normalperson@yhbt.net>
Commit 981ff5c37ae20687c98d98c8689d5e89016026d2 changed the error
message from git cherry-pick from
Automatic cherry-pick failed. [...advice...]
to
error: could not apply 7ab78c9... Do something neat.
[...advice...]
Update gitk’s regex to match this, restoring the ability to launch git
citool to resolve conflicted cherry-picks.
Signed-off-by: Anders Kaseorg <andersk@mit.edu> Signed-off-by: Paul Mackerras <paulus@samba.org>
merge: allow "-" as a short-hand for "previous branch"
Just like "git checkout -" is a short-hand for "git checkout @{-1}" to
conveniently switch back to the previous branch, "git merge -" is a
short-hand for "git merge @{-1}" to conveniently merge the previous branch.
It will allow me to say:
$ git checkout -b au/topic
$ git am -s ./+au-topic.mbox
$ git checkout pu
$ git merge -
which is an extremely typical and repetitive operation during my git day.
git-p4: replace each tab with 8 spaces for consistency
Note that the majority of git-p4 uses spaces, not tabs, for indentation.
Consistent indentation is a good hygiene for Python scripts, and mixing
tabs and spaces in Python can lead to hard-to-find bugs.
Signed-off-by: Andrew Garber <andrew@andrewgarber.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Documentation: Allow custom diff tools to be specified in 'diff.tool'
Apart from the list of "valid values", 'diff.tool' can take any value,
provided there is a corresponding 'difftool.<tool>.cmd' option. Also,
describe this option just before the 'difftool.*' options.
Helped-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Although the gitattributes page contains comprehensive information
about these configuration options, they should be included in the
config documentation for completeness.
It may be better to rename the "driver" in "diff.<driver>.*" to
something like "content type" or "file type", but for now, let's keep
it consistent across this part of the documentation and the original
description in the gitattributes documentation.
Helped-by: Jakub Narebski <jnareb@gmail.com> Helped-by: Michael J Gruber <git@drmicha.warpmail.net> Helped-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Although the gitattributes page contains comprehensive information
about these configuration options, they should be included in the
config documentation for completeness.
Helped-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
upload-pack: start pack-objects before async rev-list
In a pthread-enabled version of upload-pack, there's a race condition
that can cause a deadlock on the fflush(NULL) we call from run-command.
What happens is this:
1. Upload-pack is informed we are doing a shallow clone.
2. We call start_async() to spawn a thread that will generate rev-list
results to feed to pack-objects. It gets a file descriptor to a
pipe which will eventually hook to pack-objects.
3. The rev-list thread uses fdopen to create a new output stream
around the fd we gave it, called pack_pipe.
4. The thread writes results to pack_pipe. Outside of our control,
libc is doing locking on the stream. We keep writing until the OS
pipe buffer is full, and then we block in write(), still holding
the lock.
5. The main thread now uses start_command to spawn pack-objects.
Before forking, it calls fflush(NULL) to flush every stdio output
buffer. It blocks trying to get the lock on pack_pipe.
And we have a deadlock. The thread will block until somebody starts
reading from the pipe. But nobody will read from the pipe until we
finish flushing to the pipe.
To fix this, we swap the start order: we start the
pack-objects reader first, and then the rev-list writer
after. Thus the problematic fflush(NULL) happens before we
even open the new file descriptor (and even if it didn't,
flushing should no longer block, as the reader at the end of
the pipe is now active).
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Merge branch 'mg/rev-list-n-reverse-doc' into maint
* mg/rev-list-n-reverse-doc:
git-log.txt,rev-list-options.txt: put option blocks in proper order
git-log.txt,rev-list-options.txt: -n/--max-count is commit limiting
* jk/maint-remote-mirror-safer:
remote: deprecate --mirror
remote: separate the concept of push and fetch mirrors
remote: disallow some nonsensical option combinations
Before we apply a stash, we make sure there are no changes
in the worktree that are not in the index. This check dates
back to the original git-stash.sh, and is presumably
intended to prevent changes in the working tree from being
accidentally lost during the merge.
However, this check has two problems:
1. It is overly restrictive. If my stash changes only file
"foo", but "bar" is dirty in the working tree, it will
prevent us from applying the stash.
2. It is redundant. We don't touch the working tree at all
until we actually call merge-recursive. But it has its
own (much more accurate) checks to avoid losing working
tree data, and will abort the merge with a nicer
message telling us which paths were problems.
So we can simply drop the check entirely.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The pack-objects command should take notice of the object file and
refrain from attempting to delta large ones, to be consistent with
the fast-import command.
blame: add --abbrev command line option and make it honor core.abbrev
If user sets config.abbrev option, use it as if --abbrev was given. This
is the default value and user can override different abbrev length by
specifying the --abbrev=N command line option.
Signed-off-by: Namhyung Kim <namhyung@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
stash: fix accidental apply of non-existent stashes
Once upon a time, "git rev-parse ref@{9999999}" did not
generate an error. Therefore when we got an invalid stash
reference in "stash apply", we could end up not noticing
until quite late. Commit b0f0ecd (detached-stash: work
around git rev-parse failure to detect bad log refs,
2010-08-21) handled this by checking for the "Log for stash
has only %d entries" warning on stderr when we validated the
ref.
A few days later, e6eedc3 (rev-parse: exit with non-zero
status if ref@{n} is not valid., 2010-08-24) fixed the
original issue. That made the extra stderr test superfluous,
but also introduced a new bug. Now the early call to:
git rev-parse --symbolic "$@"
fails, but we don't notice the exit code. Worse, its empty
output means we think the user didn't provide us a ref, and
we try to apply stash@{0}.
This patch checks the rev-parse exit code and fails early in
the revision parsing process. We can also get rid of the
stderr test; as a bonus, this means that "stash apply" can
now run under GIT_TRACE=1 properly.
Signed-off-by: Jeff King <peff@peff.net> Acked-by: Jon Seymour <jon.seymour@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>