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When blaming files in the working tree, the filespec is marked with
!sha1_valid, as we have not given the contents an object name yet. The
function to cache textconv results (keyed on the object name), however,
didn't check this condition, and ended up on storing the cached result
under a random object name.
Cc: Axel Bonnet <axel.bonnet@ensimag.imag.fr>
Cc: Clément Poulain <clement.poulain@ensimag.imag.fr>
Cc: Diane Gasselin <diane.gasselin@ensimag.imag.fr>
Cc: Jeff King <peff@peff.net>
Signed-off-by: Kirill Smelkov <kirr@landau.phys.spbu.ru>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* np/diff-in-corrupt-repository:
diff: don't presume empty file when corresponding object is missing
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* cm/diff-check-at-eol:
diff --check: correct line numbers of new blank lines at EOF
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* cb/diff-fname-optim:
diff: avoid repeated scanning while looking for funcname
do not search functions for patch ID
add rebase patch id tests
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* jk/no-textconv-symlink:
diff: don't use pathname-based diff drivers for symlinks
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The low-level diff code will happily produce totally bogus diff output
with a broken repository via format-patch and friends by treating missing
objects as empty files. Let's prevent that from happening any longer.
Reported-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The whitespace check printed the value of the wrong variable, i.e. the
beginning of the block of blank lines at the EOF (possibly absent) in the
old file.
As "git diff --check" is used by users to check their changes before
making a commit, we should point at the line number in the file after
the change.
Signed-off-by: Christoph Mallon <christoph.mallon@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The option argument is either after the equal sign in --output=... or in
the next command-line argument. optarg is the reliable way to access it.
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Visual aids, such as the function name in the hunk
header, are not necessary for the purposes of
computing a patch ID.
This is a performance optimization.
Signed-off-by: Clemens Buchacher <drizzd@aon.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When we're diffing symlinks, we consider the contents to be
the pathname that the symlink points to. When a user sets up
a userdiff driver like "*.pdf diff=pdf", their "diff.pdf.*"
config generally tells us what to do with the content of
pdf files.
With the current code, we will actually process a symlink
like "link.pdf" using a configured pdf driver, meaning we
are using contents which consist of a pathname with
configuration that is expecting contents that consist of an
actual pdf file.
The most noticeable example of this would have been
textconv; however, it was already protected in its own
textconv-specific code path. We can still see the breakage
with something like "diff.*.binary", though. You could
also see it with diff.*.funcname, though it is a bit harder
to trigger accidentally there.
This patch adds a check for S_ISREG lower in the callstack
than the textconv-specific check, which should block use of
any userdiff config for non-regular files. We can drop the
check in the textconv code, which is now redundant.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* maint:
xdiff-interface.c: always trim trailing space from xfuncname matches
diff.c: call regfree to free memory allocated by regcomp when necessary
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Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* cb/binary-patch-id:
hash binary sha1 into patch id
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* mm/shortopt-detached:
log: parse separate option for --glob
log: parse separate options like git log --grep foo
diff: parse separate options --stat-width n, --stat-name-width n
diff: split off a function for --stat-* option parsing
diff: parse separate options like -S foo
Conflicts:
revision.c
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* jc/maint-follow-rename-fix:
log: test for regression introduced in v1.7.2-rc0~103^2~2
diff --follow: do call diffcore_std() as necessary
diff --follow: do not waste cycles while recursing
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* jl/submodule-ignore-diff:
Add tests for the diff.ignoreSubmodules config option
Add the 'diff.ignoreSubmodules' config setting
Submodules: Use "ignore" settings from .gitmodules too for diff and status
Submodules: Add the new "ignore" config option for diff and status
Conflicts:
diff.c
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Since commit 2f82f760 (Take binary diffs into
account for "git rebase"), binary files are
included in patch ID computation. Binary files are
diffed using the text diff algorithm, however,
which has a huge impact on performance. The
following tests performance for a 50000 line file
marked as binary in .gitattributes.
$ git format-patch --stdout --ignore-if-in-upstream master
real 0m0.367s
user 0m0.354s
sys 0m0.010s
Instead of diffing the binary files, hash the pre-
and post-image sha1, which is just as unique. As a
result, performance is much improved.
$ git format-patch --stdout --ignore-if-in-upstream master
real 0m0.016s
user 0m0.015s
sys 0m0.001s
Signed-off-by: Clemens Buchacher <drizzd@aon.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Usually, diff frontends populate the output queue with filepairs without
any rename information and call diffcore_std() to sort the renames out.
When --follow is in effect, however, diff-tree family of frontend has a
hack that looks like this:
diff-tree frontend
-> diff_tree_sha1()
. populate diff_queued_diff
. if --follow is in effect and there is only one change that
creates the target path, then
-> try_to_follow_renames()
-> diff_tree_sha1() with no pathspec but with -C
-> diffcore_std() to find renames
. if rename is found, tweak diff_queued_diff and put a
single filepair that records the found rename there
-> diffcore_std()
. tweak elements on diff_queued_diff by
- rename detection
- path ordering
- pickaxe filtering
We need to skip parts of the second call to diffcore_std() that is related
to rename detection, and do so only when try_to_follow_renames() did find
a rename. Earlier 1da6175 (Make diffcore_std only can run once before a
diff_flush, 2010-05-06) tried to deal with this issue incorrectly; it
unconditionally disabled any second call to diffcore_std().
This hopefully fixes the breakage.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There are two ways a user might want to use "diff --relative":
1. For a file in a directory, like "subdir/file", the user
can use "--relative=subdir/" to strip the directory.
2. To strip part of a filename, like "foo-10", they can
use "--relative=foo-".
We currently handle both of those situations. However, if the user passes
"--relative=subdir" (without the trailing slash), we produce inconsistent
results. For the unified diff format, we collapse the double-slash of
"a//file" correctly into "a/file". But for other formats (raw, stat,
name-status), we end up with "/file".
We can do what the user means here and strip the extra "/" (and only a
slash). We are not hurting any existing users of (2) above with this
behavior change because the existing output for this case was nonsensical.
Patch by Jakub, tests and commit message by Jeff King.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When you have a lot of submodules checked out, the time penalty to check
for dirty submodules can easily imply a multiplication of the total time
by the factor 20. This makes the difference between almost instantaneous
(< 2 seconds) and unbearably slow (> 50 seconds) here, since the disk
caches are constantly overloaded.
To this end, the submodule.*.ignore config option was introduced, but it
is per-submodule.
This commit introduces a global config setting to set a default
(porcelain) value for the --ignore-submodules option, keeping the
default at 'none'. It can be overridden by the submodule.*.ignore
setting and by the --ignore-submodules option.
Incidentally, this commit fixes an issue with the overriding logic:
multiple --ignore-submodules options would not clear the previously
set flags.
While at it, fix a typo in the documentation for submodule.*.ignore.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The new "ignore" config option controls the default behavior for "git
status" and the diff family. It specifies under what circumstances they
consider submodules as modified and can be set separately for each
submodule.
The command line option "--ignore-submodules=" has been extended to accept
the new parameter "none" for both status and diff.
Users that chose submodules to get rid of long work tree scanning times
might want to set the "dirty" option for those submodules. This brings
back the pre 1.7.0 behavior, where submodule work trees were never
scanned for modifications. By using "--ignore-submodules=none" on the
command line the status and diff commands can be told to do a full scan.
This option can be set to the following values (which have the same name
and meaning as for the "--ignore-submodules" option of status and diff):
"all": All changes to the submodule will be ignored.
"dirty": Only differences of the commit recorded in the superproject and
the submodules HEAD will be considered modifications, all changes
to the work tree of the submodule will be ignored. When using this
value, the submodule will not be scanned for work tree changes at
all, leading to a performance benefit on large submodules.
"untracked": Only untracked files in the submodules work tree are ignored,
a changed HEAD and/or modified files in the submodule will mark it
as modified.
"none" (which is the default): Either untracked or modified files in a
submodules work tree or a difference between the subdmodules HEAD
and the commit recorded in the superproject will make it show up
as changed. This value is added as a new parameter for the
"--ignore-submodules" option of the diff family and "git status"
so the user can override the settings in the configuration.
Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Part of a campaign for unstuck forms of options.
[jn: with some refactoring]
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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As an optimization, the diff_opt_parse() switchboard has
a single case for all the --stat-* options. Split it
off into a separate function so we can enhance it
without bringing code dangerously close to the right
margin.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Change the option parsing logic in revision.c to accept separate forms
like `-S foo' in addition to `-Sfoo'. The rest of git already accepted
this form, but revision.c still used its own option parsing.
Short options affected are -S<string>, -l<num> and -O<orderfile>, for
which an empty string wouldn't make sense, hence -<option> <arg> isn't
ambiguous.
This patch does not handle --stat-name-width and --stat-width, which are
special-cases where diff_long_opt do not apply. They are handled in a
separate patch to ease review.
Original patch by Matthieu Moy, plus refactoring by Jonathan Nieder.
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* sv/maint-diff-q-clear-fix:
Fix DIFF_QUEUE_CLEAR refactoring
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It introduced a macro to reduce repeated assignments to three fields,
but an unrelated and incorrect change snuck in by mistake, which broke
commands like "git diff-files -p --submodule".
Noticed by Sven Verdoolaege.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When --graph is in effect, the line-prefix typically has colored graph
line segments and ends with reset. The color sequence "set" given to
this function is for showing the metainfo part of the patch text and
(1) it should not be applied to the graph lines, and (2) it will be
reset at the end of line_prefix so it won't be in effect anyway.
Signed-off-by: Bo Yang <struggleyb.nku@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* jl/status-ignore-submodules:
Add the option "--ignore-submodules" to "git status"
git submodule: ignore dirty submodules for summary and status
Conflicts:
builtin/commit.c
t/t7508-status.sh
wt-status.c
wt-status.h
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* jl/maint-diff-ignore-submodules:
t4027,4041: Use test -s to test for an empty file
Add optional parameters to the diff option "--ignore-submodules"
git diff: rename test that had a conflicting name
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* ab/blame-textconv:
t/t8006: test textconv support for blame
textconv: support for blame
textconv: make the API public
Conflicts:
diff.h
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In some use cases it is not desirable that "git status" considers
submodules that only contain untracked content as dirty. This may happen
e.g. when the submodule is not under the developers control and not all
build generated files have been added to .gitignore by the upstream
developers. Using the "untracked" parameter for the "--ignore-submodules"
option disables checking for untracked content and lets git diff report
them as changed only when they have new commits or modified content.
Sometimes it is not wanted to have submodules show up as changed when they
just contain changes to their work tree (this was the behavior before
1.7.0). An example for that are scripts which just want to check for
submodule commits while ignoring any changes to the work tree. Also users
having large submodules known not to change might want to use this option,
as the - sometimes substantial - time it takes to scan the submodule work
tree(s) is saved when using the "dirty" parameter.
And if you want to ignore any changes to submodules, you can now do that
by using this option without parameters or with "all" (when the config
option status.submodulesummary is set, using "all" will also suppress the
output of the submodule summary).
A new function handle_ignore_submodules_arg() is introduced to parse this
option new to "git status" in a single location, as "git diff" already
knew it.
Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* maint:
Update draft release notes to 1.7.1.1
tests: remove unnecessary '^' from 'expr' regular expression
Conflicts:
diff.c
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* cc/maint-diff-CC-binary:
diff: fix "git show -C -C" output when renaming a binary file
Conflicts:
diff.c
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* bw/diff-metainfo-color:
diff: fix coloring of extended diff headers
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* rs/diff-no-minimal:
git diff too slow for a file
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* cc/maint-diff-CC-binary:
diff: fix "git show -C -C" output when renaming a binary file
Conflicts:
diff.c
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* by/diff-graph:
Make --color-words work well with --graph
graph.c: register a callback for graph output
Emit a whole line in one go
diff.c: Output the text graph padding before each diff line
Output the graph columns at the end of the commit message
Add a prefix output callback to diff output
Conflicts:
diff.c
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* jh/diff-index-line-abbrev:
diff.c: Ensure "index $from..$to" line contains unambiguous SHA1s
Conflicts:
diff.c
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* ec/diff-noprefix-config:
diff: add configuration option for disabling diff prefixes.
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* bw/diff-metainfo-color:
diff: fix coloring of extended diff headers
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* rs/diff-no-minimal:
git diff too slow for a file
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In some use cases it is not desirable that the diff family considers
submodules that only contain untracked content as dirty. This may happen
e.g. when the submodule is not under the developers control and not all
build generated files have been added to .gitignore by the upstream
developers. Using the "untracked" parameter for the "--ignore-submodules"
option disables checking for untracked content and lets git diff report
them as changed only when they have new commits or modified content.
Sometimes it is not wanted to have submodules show up as changed when they
just contain changes to their work tree. An example for that are scripts
which just want to check for submodule commits while ignoring any changes
to the work tree. Also users having large submodules known not to change
might want to use this option, as the - sometimes substantial - time it
takes to scan the submodule work tree(s) is saved.
Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The textconv functionality allows one to convert a file into text before
running diff. But this functionality can be useful to other features
such as blame.
Signed-off-by: Axel Bonnet <axel.bonnet@ensimag.imag.fr>
Signed-off-by: Clément Poulain <clement.poulain@ensimag.imag.fr>
Signed-off-by: Diane Gasselin <diane.gasselin@ensimag.imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A bug was introduced in 3e97c7c6af2901cec63bf35fcd43ae3472e24af8
(No diff -b/-w output for all-whitespace changes, Nov 19 2009)
that made the lines:
diff --git a/bar b/sub/bar
similarity index 100%
rename from bar
rename to sub/bar
disappear from "git show -C -C" output when file bar is a binary
file.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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'--color-words' algorithm can be described as:
1. collect a the minus/plus lines of a diff hunk, divided into
minus-lines and plus-lines;
2. break both minus-lines and plus-lines into words and
place them into two mmfile_t with one word for each line;
3. use xdiff to run diff on the two mmfile_t to get the words level diff;
And for the common parts of the both file, we output the plus side text.
diff_words->current_plus is used to trace the current position of the plus file
which printed. diff_words->last_minus is used to trace the last minus word
printed.
For '--graph' to work with '--color-words', we need to output the graph prefix
on each line of color words output. Generally, there are two conditions on
which we should output the prefix.
1. diff_words->last_minus == 0 &&
diff_words->current_plus == diff_words->plus.text.ptr
that is: the plus text must start as a new line, and if there is no minus
word printed, a graph prefix must be printed.
2. diff_words->current_plus > diff_words->plus.text.ptr &&
*(diff_words->current_plus - 1) == '\n'
that is: a graph prefix must be printed following a '\n'
Signed-off-by: Bo Yang <struggleyb.nku@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Since the graph prefix will be printed when calling
emit_line, so the functions should be used to emit a
complete line out once a time. No one should call
emit_line to just output some strings instead of a
complete line.
Use a strbuf to compose the whole line, and then
call emit_line to output it once.
Signed-off-by: Bo Yang <struggleyb.nku@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Change output from diff with -p/--dirstat/--binary/--numstat/--stat/
--shortstat/--check/--summary options to align with graph paddings.
Thanks Jeff King <peff@peff.net> for reporting the '--summary' bug and
his initial patch.
Signed-off-by: Bo Yang <struggleyb.nku@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The callback can be used to add some prefix string to each line of
diff output.
Signed-off-by: Bo Yang <struggleyb.nku@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In the metainfo section of git diffs there's an "index" line providing
abbreviated (unless --full-index is used) blob SHA1s from the
pre-/post-images used to generate the diff. These provide hints that
can be used to reconstruct a 3-way merge when applying the patch
(see the --3way option to 'git am' for more details).
In order for this to work, however, the blob SHA1s must not be
abbreviated into ambiguity.
This patch eliminates the possible ambiguity by using find_unique_abbrev()
to produce the abbreviated SHA1s (instead of blind abbreviation by way of
"%.*s").
A testcase verifying the fix is also included.
Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Kirill Smelkov
Junio C Hamano
Yann Dirson
Nicolas Pitre
Christoph Mallon
Matthieu Moy
Clemens Buchacher
Jeff King
Brandon Casey
Jakub Narebski
Johannes Schindelin
Jens Lehmann
Jonathan Nieder
Bo Yang
Axel Bonnet
Christian Couder
Johan Herland