Some history viewers use the diff plumbing to generate diffs
rather than going through the "git diff" porcelain.
Currently, there is no way for them to specify that they
would like to see the text-converted version of the diff.
This patch adds a "--textconv" option to allow such a
plumbing user to allow text conversion. The user can then
tell the viewer whether or not they would like text
conversion enabled.
While it may be tempting add a configuration option rather
than requiring each plumbing user to be configured to pass
--textconv, that is somewhat dangerous. Text-converted diffs
generally cannot be applied directly, so each plumbing user
should "opt in" to generating such a diff, either by
explicit request of the user or by confirming that their
output will not be fed to patch.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* rs/blame:
blame: use xdi_diff_hunks(), get rid of struct patch
add xdi_diff_hunks() for callers that only need hunk lengths
Allow alternate "low-level" emit function from xdl_diff
Always initialize xpparam_t to 0
blame: inline get_patch()
We treat symlinks as text containing the results of the
symlink, so it doesn't make much sense to text-convert them.
Similarly gitlink components just end up as the text
"Subproject commit $sha1", which we should leave intact.
Note that a typechange may be broken into two parts: the
removal of the old part and the addition of the new. In that
case, we _do_ show the textconv for any part which is the
addition or removal of a file we would ordinarily textconv,
since it is purely acting on the file contents.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffs that have been produced with textconv almost certainly
cannot be applied, so we want to be careful not to generate
them in things like format-patch.
This introduces a new diff options, ALLOW_TEXTCONV, which
controls this behavior. It is off by default, but is
explicitly turned on for the "log" family of commands, as
well as the "diff" porcelain (but not diff-* plumbing).
Because both text conversion and external diffing are
controlled by these diff options, we can get rid of the
"plumbing versus porcelain" distinction when reading the
config. This was an attempt to control the same thing, but
suffered from being too coarse-grained.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The original implementation of textconv put the conversion
into fill_mmfile. This was a bad idea for a number of
reasons:
- it made the semantics of fill_mmfile unclear. In some
cases, it was allocating data (if a text conversion
occurred), and in some cases not (if we could use the
data directly from the filespec). But the caller had
no idea which had happened, and so didn't know whether
the memory should be freed
- similarly, the caller had no idea if a text conversion
had occurred, and so didn't know whether the contents
should be treated as binary or not. This meant that we
incorrectly guessed that text-converted content was
binary and didn't actually show it (unless the user
overrode us with "diff.foo.binary = false", which then
created problems in plumbing where the text conversion
did _not_ occur)
- not all callers of fill_mmfile want the text contents. In
particular, we don't really want diffstat, whitespace
checks, patch id generation, etc, to look at the
converted contents.
This patch pulls the conversion code directly into
builtin_diff, so that we only see the conversion when
generating an actual patch. We also then know whether we are
doing a conversion, so we can check the binary-ness and free
the data from the mmfile appropriately (the previous version
leaked quite badly when text conversion was used)
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This function isn't used outside of diff.c; the 'static' was
simply overlooked in the original writing.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We're going to be adding some parameters to this, so we can't have
any uninitialized data in it.
Signed-off-by: Brian Downing <bdowning@lavos.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When diffing binary files, it is sometimes nice to see the
differences of a canonical text form rather than either a
binary patch or simply "binary files differ."
Until now, the only option for doing this was to define an
external diff command to perform the diff. This was a lot of
work, since the external command needed to take care of
doing the diff itself (including mode changes), and lost the
benefit of git's colorization and other options.
This patch adds a text conversion option, which converts a
file to its canonical format before performing the diff.
This is less flexible than an arbitrary external diff, but
is much less work to set up. For example:
$ echo '*.jpg diff=exif' >>.gitattributes
$ git config diff.exif.textconv exiftool
$ git config diff.exif.binary false
allows one to see jpg diffs represented by the text output
of exiftool.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
The "diff" gitattribute is somewhat overloaded right now. It
can say one of three things:
1. this file is definitely binary, or definitely not
(i.e., diff or !diff)
2. this file should use an external diff engine (i.e.,
diff=foo, diff.foo.command = custom-script)
3. this file should use particular funcname patterns
(i.e., diff=foo, diff.foo.(x?)funcname = some-regex)
Most of the time, there is no conflict between these uses,
since using one implies that the other is irrelevant (e.g.,
an external diff engine will decide for itself whether the
file is binary).
However, there is at least one conflicting situation: there
is no way to say "use the regular rules to determine whether
this file is binary, but if we do diff it textually, use
this funcname pattern." That is, currently setting diff=foo
indicates that the file is definitely text.
This patch introduces a "binary" config option for a diff
driver, so that one can explicitly set diff.foo.binary. We
default this value to "don't know". That is, setting a diff
attribute to "foo" and using "diff.foo.funcname" will have
no effect on the binaryness of a file. To get the current
behavior, one can set diff.foo.binary to true.
This patch also has one additional advantage: it cleans up
the interface to the userdiff code a bit. Before, calling
code had to know more about whether attributes were false,
true, or unset to determine binaryness. Now that binaryness
is a property of a driver, we can represent these situations
just by passing back a driver struct.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Both sets of code assume that one specifies a diff profile
as a gitattribute via the "diff=foo" attribute. They then
pull information about that profile from the config as
diff.foo.*.
The code for each is currently completely separate from the
other, which has several disadvantages:
- there is duplication as we maintain code to create and
search the separate lists of external drivers and
funcname patterns
- it is difficult to add new profile options, since it is
unclear where they should go
- the code is difficult to follow, as we rely on the
"check if this file is binary" code to find the funcname
pattern as a side effect. This is the first step in
refactoring the binary-checking code.
This patch factors out these diff profiles into "userdiff"
drivers. A file with "diff=foo" uses the "foo" driver, which
is specified by a single struct.
Note that one major difference between the two pieces of
code is that the funcname patterns are always loaded,
whereas external drivers are loaded only for the "git diff"
porcelain; the new code takes care to retain that situation.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Many call sites use strbuf_init(&foo, 0) to initialize local
strbuf variable "foo" which has not been accessed since its
declaration. These can be replaced with a static initialization
using the STRBUF_INIT macro which is just as readable, saves a
function call, and takes up fewer lines.
Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Add support for recognition of Objective-C class & instance methods,
C functions, and class implementation/interfaces.
Signed-off-by: Jonathan del Strother <jon.delStrother@bestbefore.tv>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
* maint:
Update release notes for 1.6.0.3
Teach rebase -i to honor pre-rebase hook
docs: describe pre-rebase hook
do not segfault if make_cache_entry failed
make prefix_path() never return NULL
fix bogus "diff --git" header from "diff --no-index"
Fix fetch/clone --quiet when stdout is connected
builtin-blame: Fix blame -C -C with submodules.
bash: remove fetch, push, pull dashed form leftovers
Conflicts:
diff.c
When "git diff --no-index" is given an absolute pathname, it
would generate a diff header with the absolute path
prepended by the prefix, like:
diff --git a/dev/null b/foo
Not only is this nonsensical, and not only does it violate
the description of diffs given in git-diff(1), but it would
produce broken binary diffs. Unlike text diffs, the binary
diffs don't contain the filenames anywhere else, and so "git
apply" relies on this header to figure out the filename.
This patch just refuses to use an invalid name for anything
visible in the diff.
Now, this fixes the "git diff --no-index --binary a
/dev/null" kind of case (and we'll end up using "a" as the
basename), but some other insane cases are impossible to
handle. If you do
git diff --no-index --binary a /bin/echo
you'll still get a patch like
diff --git a/a b/bin/echo
old mode 100644
new mode 100755
index ...
and "git apply" will refuse to apply it for a couple of
reasons, and the diff is simply bogus.
And that, btw, is no longer a bug, I think. It's impossible
to know whethe the user meant for the patch to be a rename
or not. And as such, refusing to apply it because you don't
know what name you should use is probably _exactly_ the
right thing to do!
Original problem reported by Imre Deak. Test script and problem
description by Jeff King.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
On ARM I have the following compilation errors:
CC fast-import.o
In file included from cache.h:8,
from builtin.h:6,
from fast-import.c:142:
arm/sha1.h:14: error: conflicting types for 'SHA_CTX'
/usr/include/openssl/sha.h:105: error: previous declaration of 'SHA_CTX' was here
arm/sha1.h:16: error: conflicting types for 'SHA1_Init'
/usr/include/openssl/sha.h:115: error: previous declaration of 'SHA1_Init' was here
arm/sha1.h:17: error: conflicting types for 'SHA1_Update'
/usr/include/openssl/sha.h:116: error: previous declaration of 'SHA1_Update' was here
arm/sha1.h:18: error: conflicting types for 'SHA1_Final'
/usr/include/openssl/sha.h:117: error: previous declaration of 'SHA1_Final' was here
make: *** [fast-import.o] Error 1
This is because openssl header files are always included in
git-compat-util.h since commit 684ec6c63c whenever NO_OPENSSL is not
set, which somehow brings in <openssl/sha1.h> clashing with the custom
ARM version. Compilation of git is probably broken on PPC too for the
same reason.
Turns out that the only file requiring openssl/ssl.h and openssl/err.h
is imap-send.c. But only moving those problematic includes there
doesn't solve the issue as it also includes cache.h which brings in the
conflicting local SHA1 header file.
As suggested by Jeff King, the best solution is to rename our references
to SHA1 functions and structure to something git specific, and define those
according to the implementation used.
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
* bc/master-diff-hunk-header-fix:
Clarify commit error message for unmerged files
Use strchrnul() instead of strchr() plus manual workaround
Use remove_path from dir.c instead of own implementation
Add remove_path: a function to remove as much as possible of a path
git-submodule: Fix "Unable to checkout" for the initial 'update'
Clarify how the user can satisfy stash's 'dirty state' check.
t4018-diff-funcname: test syntax of builtin xfuncname patterns
t4018-diff-funcname: test syntax of builtin xfuncname patterns
make "git remote" report multiple URLs
diff hunk pattern: fix misconverted "\{" tex macro introducers
diff: fix "multiple regexp" semantics to find hunk header comment
diff: use extended regexp to find hunk headers
diff: use extended regexp to find hunk headers
diff.*.xfuncname which uses "extended" regex's for hunk header selection
diff.c: associate a flag with each pattern and use it for compiling regex
diff.c: return pattern entry pointer rather than just the hunk header pattern
Conflicts:
builtin-merge-recursive.c
t/t7201-co.sh
xdiff-interface.h
* maint: (41 commits)
Clarify commit error message for unmerged files
Use strchrnul() instead of strchr() plus manual workaround
Use remove_path from dir.c instead of own implementation
Add remove_path: a function to remove as much as possible of a path
git-submodule: Fix "Unable to checkout" for the initial 'update'
Clarify how the user can satisfy stash's 'dirty state' check.
Remove empty directories in recursive merge
Documentation: clarify the details of overriding LESS via core.pager
Update release notes for 1.6.0.3
checkout: Do not show local changes when in quiet mode
for-each-ref: Fix --format=%(subject) for log message without newlines
git-stash.sh: don't default to refs/stash if invalid ref supplied
maint: check return of split_cmdline to avoid bad config strings
builtin-prune.c: prune temporary packs in <object_dir>/pack directory
Do not perform cross-directory renames when creating packs
Use dashless git commands in setgitperms.perl
git-remote: do not use user input in a printf format string
make "git remote" report multiple URLs
Start draft release notes for 1.6.0.3
git-repack uses --no-repack-object, not --no-repack-delta.
...
Conflicts:
RelNotes
* bc/maint-diff-hunk-header-fix:
t4018-diff-funcname: test syntax of builtin xfuncname patterns
diff hunk pattern: fix misconverted "\{" tex macro introducers
diff: use extended regexp to find hunk headers
diff.*.xfuncname which uses "extended" regex's for hunk header selection
diff.c: associate a flag with each pattern and use it for compiling regex
diff.c: return pattern entry pointer rather than just the hunk header pattern
Conflicts:
Documentation/gitattributes.txt
[jc: fixes bibtex pattern breakage exposed by this test]
Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When multiple regular expressions are concatenated with "\n", they were
traditionally AND'ed together, and only a line that matches _all_ of them
is taken as a match. This however is unwieldy when multiple regexp
feature is used to specify alternatives.
This fixes the semantics to take the first match. A nagative pattern, if
matches, makes the line to fail as before. A match with a positive
pattern will be the final match, and what it captures in $1 is used as the
hunk header comment.
We could write alternatives using "|" in ERE, but the machinery can only
use captured $1 as the hunk header comment (or $0 if there is no match in
$1), so you cannot write:
"junk ( A | B ) | garbage ( C | D )"
and expect both "junk" and "garbage" to get stripped with the existing
code. With this fix, you can write it as:
"junk ( A | B ) \n garbage ( C | D )"
and the way capture works would match the user expectation more
naturally.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Using ERE elements such as "|" (alternation) by backquoting in BRE
is a GNU extension and should not be done in portable programs.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Using ERE elements such as "|" (alternation) by backquoting in BRE
is a GNU extension and should not be done in portable programs.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* bc/maint-diff-hunk-header-fix:
diff.*.xfuncname which uses "extended" regex's for hunk header selection
diff.c: associate a flag with each pattern and use it for compiling regex
diff.c: return pattern entry pointer rather than just the hunk header pattern
Cosmetical command name fix
Start conforming code to "git subcmd" style part 3
t9700/test.pl: remove File::Temp requirement
t9700/test.pl: avoid bareword 'STDERR' in 3-argument open()
GIT 1.6.0.2
Fix some manual typos.
Use compatibility regex library also on FreeBSD
Use compatibility regex library also on AIX
Update draft release notes for 1.6.0.2
Use compatibility regex library for OSX/Darwin
git-svn: Fixes my() parameter list syntax error in pre-5.8 Perl
Git.pm: Use File::Temp->tempfile instead of ->new
t7501: always use test_cmp instead of diff
Start conforming code to "git subcmd" style part 2
diff: Help "less" hide ^M from the output
checkout: do not check out unmerged higher stages randomly
Conflicts:
Documentation/git.txt
Documentation/gitattributes.txt
Makefile
diff.c
t/t7201-co.sh
Currently, the hunk headers produced by 'diff -p' are customizable by
setting the diff.*.funcname option in the config file. The 'funcname' option
takes a basic regular expression. This functionality was designed using the
GNU regex library which, by default, allows using backslashed versions of
some extended regular expression operators, even in Basic Regular Expression
mode. For example, the following characters, when backslashed, are
interpreted according to the extended regular expression rules: ?, +, and |.
As such, the builtin funcname patterns were created using some extended
regular expression operators.
Other platforms which adhere more strictly to the POSIX spec do not
interpret the backslashed extended RE operators in Basic Regular Expression
mode. This causes the pattern matching for the builtin funcname patterns to
fail on those platforms.
Introduce a new option 'xfuncname' which uses extended regular expressions,
and advertise it _instead_ of funcname. Since most users are on GNU
platforms, the majority of funcname patterns are created and tested there.
Advertising only xfuncname should help to avoid the creation of non-portable
patterns which work with GNU regex but not elsewhere.
Additionally, the extended regular expressions may be less ugly and
complicated compared to the basic RE since many common special operators do
not need to be backslashed.
For example, the GNU Basic RE:
^[ ]*\\(\\(public\\|static\\).*\\)$
becomes the following Extended RE:
^[ ]*((public|static).*)$
Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This is in preparation for allowing extended regular expression patterns.
Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This is in preparation for associating a flag with each pattern which will
control how the pattern is interpreted. For example, as a basic or extended
regular expression.
Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Otherwise it will always print the class-name rather
than the name of the function inside that class.
While we're at it, reorder the gitattributes manpage to
list the built-in funcname pattern names in alphabetical
order.
Signed-off-by: Andreas Ericsson <ae@op5.se>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The point of --quiet was to return the status as early as possible without
doing any extra processing. Well behaved scripts, when they expect to run
many diff operations inside, are supposed to run "update-index --refresh"
upfront; we do not want them to pay the price of iterating over the index
and comparing the contents to fix the stat dirtiness, and we avoided most
of the processing in diffcore_std() when --quiet is in effect.
But scripts that adhere to the good practice won't have to pay any more
price than the necessary lstat(2) that will report stat cleanliness, as
long as only -q is given without any fancier diff options.
More importantly, users who do ask for "--quiet -M --filter=D" (in order
to notice only the deletion, not paths that disappeared only because they
have been renamed away) deserve to get the result they asked for, even it
means they have to pay the extra price; the alternative is to get a cheap
early return that gives a result they did not ask for, which is much
worse.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When we enabled the automatic refreshing of the index to "diff" Porcelain,
we disabled it when --find-copies-harder was asked, but there is no good
reason to do so. In the following command sequence, the first "diff"
shows an "empty" diff exposing stat dirtyness, while the second one does
not.
$ >foo
$ git add foo
$ touch foo
$ git diff -C -C
$ git diff -C
This fixes the inconsistency.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This new option --dirstat-by-file is the same as --dirstat, but it
counts "impacted files" instead of "impacted lines" (lines that are
added or removed).
Signed-off-by: Heikki Orsila <heikki.orsila@iki.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* jc/maint-log-grep:
log --author/--committer: really match only with name part
diff --cumulative is a sub-option of --dirstat
bash completion: Hide more plumbing commands
The option used to be implemented as if it is a totally independent one,
but "git diff --cumulative" would not mean anything without "--dirstat".
This makes --cumulative imply --dirstat.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
With a new configuration "diff.mnemonicprefix", "git diff" shows the
differences between various combinations of preimage and postimage trees
with prefixes different from the standard "a/" and "b/". Hopefully this
will make the distinction stand out for some people.
"git diff" compares the (i)ndex and the (w)ork tree;
"git diff HEAD" compares a (c)ommit and the (w)ork tree;
"git diff --cached" compares a (c)ommit and the (i)ndex;
"git-diff HEAD:file1 file2" compares an (o)bject and a (w)ork tree entity;
"git diff --no-index a b" compares two non-git things (1) and (2).
Because these mnemonics now have meanings, they are swapped when reverse
diff is in effect and this feature is enabled.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When the tracked contents have CRLF line endings, colored diff output
shows "^M" at the end of output lines, which is distracting, even though
the pager we use by default ("less") knows to hide them.
The problem is that "less" hides a carriage-return only at the end of the
line, immediately before a line feed. The colored diff output does not
take this into account, and emits four element sequence for each line:
- force this color;
- the line up to but not including the terminating line feed;
- reset color
- line feed.
By including the carriage return at the end of the line in the second
item, we are breaking the smart our pager has in order not to show "^M".
This can be fixed by changing the sequence to:
- force this color;
- the line up to but not including the terminating end-of-line;
- reset color
- end-of-line.
where end-of-line is either a single linefeed or a CRLF pair. When the
output is not colored, "force this color" and "reset color" sequences are
both empty, so we won't have this problem with or without this patch.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* maint:
tutorial: gentler illustration of Alice/Bob workflow using gitk
pretty=format: respect date format options
make git-shell paranoid about closed stdin/stdout/stderr
Document gitk --argscmd flag.
Fix '--dirstat' with cross-directory renaming
for-each-ref: Allow a trailing slash in the patterns
The dirstat code depends on the fact that we always generate diffs with
the names sorted, since it then just does a single-pass walk-over of the
sorted list of names and how many changes there were. The sorting means
that all files are nicely grouped by directory.
That all works fine.
Except when we have rename detection, and suddenly the nicely sorted list
of pathnames isn't all that sorted at all. And now the single-pass dirstat
walk gets all confused, and you can get results like this:
[torvalds@nehalem linux]$ git diff --dirstat=2 -M v2.6.27-rc4..v2.6.27-rc5
3.0% arch/powerpc/configs/
6.8% arch/arm/configs/
2.7% arch/powerpc/configs/
4.2% arch/arm/configs/
5.6% arch/powerpc/configs/
8.4% arch/arm/configs/
5.5% arch/powerpc/configs/
23.3% arch/arm/configs/
8.6% arch/powerpc/configs/
4.0% arch/
4.4% drivers/usb/musb/
4.0% drivers/watchdog/
7.6% drivers/
3.5% fs/
The trivial fix is to add a sorting pass, fixing it to:
[torvalds@nehalem linux]$ git diff --dirstat=2 -M v2.6.27-rc4..v2.6.27-rc5
43.0% arch/arm/configs/
25.5% arch/powerpc/configs/
5.3% arch/
4.4% drivers/usb/musb/
4.0% drivers/watchdog/
7.6% drivers/
3.5% fs/
Spot the difference. In case anybody wonders: it's because of a ton of
renames from {include/asm-blackfin => arch/blackfin/include/asm} that just
totally messed up the file ordering in between arch/arm and arch/powerpc.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Find lines with <h1>..<h6> tags.
[jc: while at it, reordered entries to sort alphabetically.]
Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* maint:
Update draft release notes for 1.6.0.1
Add hints to revert documentation about other ways to undo changes
Install templates with the user and group of the installing personality
"git-merge": allow fast-forwarding in a stat-dirty tree
completion: find out supported merge strategies correctly
decorate: allow const objects to be decorated
for-each-ref: cope with tags with incomplete lines
diff --check: do not get confused by new blank lines in the middle
remote.c: remove useless if-before-free test
mailinfo: avoid violating strbuf assertion
git format-patch: avoid underrun when format.headers is empty or all NLs
The code remembered that the last diff output it saw was an empty line,
and tried to reset that state whenever it sees a context line, a non-blank
new line, or a new hunk. However, this codepath asks the underlying diff
engine to feed diff without any context, and the "just saw an empty line"
state was not reset if you added a new blank line in the last hunk of your
patch, even if it is not the last line of the file.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* bd/diff-strbuf:
xdiff-interface: hide the whole "xdiff_emit_state" business from the caller
Use strbuf for struct xdiff_emit_state's remainder
Make xdi_diff_outf interface for running xdiff_outf diffs
GNU diff's --suppress-blank-empty option makes it so that diff no
longer outputs trailing white space unless the input data has it.
With this option, empty context lines are now empty also in diff -u output.
Before, they would have a single trailing space.
* diff.c (diff_suppress_blank_empty): New global.
(git_diff_basic_config): Set it.
(fn_out_consume): Honor it.
* t/t4029-diff-trailing-space.sh: New file.
* Documentation/config.txt: Document it.
Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This further enhances xdi_diff_outf() interface so that it takes two
common parameters: the callback function that processes one line at a
time, and a pointer to its application specific callback data structure.
xdi_diff_outf() creates its own "xdiff_emit_state" structure and stashes
these two away inside it, which is used by the lowest level output
function in the xdiff_outf() callchain, consume_one(), to call back to the
application layer. With this restructuring, we lift the requirement that
the caller supplied callback data structure embeds xdiff_emit_state
structure as its first member.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
To prepare for the need to initialize and release resources for an
xdi_diff with the xdiff_outf output function, make a new function to
wrap this usage.
Old:
ecb.outf = xdiff_outf;
ecb.priv = &state;
...
xdi_diff(file_p, file_o, &xpp, &xecfg, &ecb);
New:
xdi_diff_outf(file_p, file_o, &state.xm, &xpp, &xecfg, &ecb);
Signed-off-by: Brian Downing <bdowning@lavos.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
All BibTeX entries starts with an @ followed by an entry type. Since
there are many entry types and own can be defined, the pattern matches
legal entry type names instead of just the default types (which would
be a long list). The pattern also matches strings and comments since
they will also be useful to position oneself in a bib-file.
Signed-off-by: Gustaf Hendeby <hendeby@isy.liu.se>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Recently "git diff --check" learned to detect new trailing blank lines
just like "git apply --whitespace" does. However this check should not
trigger unconditionally. This patch makes it honor the whitespace
settings from core.whitespace and gitattributes.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The configuration was added as a core option in 3299c6f (diff: make
default rename detection limit configurable., 2005-11-15), but 9ce392f
(Move diff.renamelimit out of default configuration., 2005-11-21)
separated diff-related stuff out of the core.
Up to that point it was Ok.
When we separated the Porcelain options out of the git_diff_config in
83ad63c (diff: do not use configuration magic at the core-level,
2006-07-08), we should have been more careful.
This mistake made diff-tree plumbing and git-show Porcelain to notice
different set of renames when the user explicitly asked for rename
detection.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This patch enhances the tex funcname by adding support for
chapter and part sectioning commands. It also matches
the starred version of the sectioning commands.
Signed-off-by: Giuseppe Bilotta <giuseppe.bilotta@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Finds classes, records, functions, procedures, and sections. Most lines
need to start at the first column, or else there's no way to differentiate
a procedure's definition from its declaration.
Signed-off-by: Avery Pennarun <apenwarr@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Provide a regexp that catches class, module and method definitions in
Ruby scripts, since the built-in default only finds classes.
Signed-off-by: Giuseppe Bilotta <giuseppe.bilotta@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This patch makes two small changes to improve the output of --inline
and --attach.
The first is to write a newline preceding the boundary. This is needed because
MIME defines the encapsulation boundary as including the preceding CRLF (or in
this case, just LF), so we should be writing one. Without this, the last
newline in the pre-diff content is consumed instead.
The second change is to always write the line termination character
(default: newline) even when using --inline or --attach. This is simply to
improve the aesthetics of the resulting message. When using --inline an email
client should render the resulting message identically to the non-inline
version. And when using --attach this adds a blank line preceding the
attachment in the email, which is visually attractive.
Signed-off-by: Kevin Ballard <kevin@sb.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* maint:
Start preparing 1.5.6.4 release notes
git fetch-pack: do not complain about "no common commits" in an empty repo
rebase-i: keep old parents when preserving merges
t7600-merge: Use test_expect_failure to test option parsing
Fix buffer overflow in prepare_attr_stack
Fix buffer overflow in git diff
Fix buffer overflow in git-grep
git-cvsserver: fix call to nonexistant cleanupWorkDir()
Documentation/git-cherry-pick.txt et al.: Fix misleading -n description
Conflicts:
RelNotes
If PATH_MAX on your system is smaller than a path stored, it may cause
buffer overflow and stack corruption in diff_addremove() and diff_change()
functions when running git-diff
Signed-off-by: Dmitry Potapov <dpotapov@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* qq/maint:
clone -q: honor "quiet" option over native transports.
attribute documentation: keep EXAMPLE at end
builtin-commit.c: Use 'git_config_string' to get 'commit.template'
http.c: Use 'git_config_string' to clean up SSL config.
diff.c: Use 'git_config_string' to get 'diff.external'
convert.c: Use 'git_config_string' to get 'smudge' and 'clean'
builtin-log.c: Use 'git_config_string' to get 'format.subjectprefix' and 'format.suffix'
Documentation cvs: Clarify when a bare repository is needed
Documentation: be precise about which date --pretty uses
Conflicts:
Documentation/gitattributes.txt
* jc/checkdiff:
Fix t4017-diff-retval for white-space from wc
Update sample pre-commit hook to use "diff --check"
diff --check: detect leftover conflict markers
Teach "diff --check" about new blank lines at end
checkdiff: pass diff_options to the callback
check_and_emit_line(): rename and refactor
diff --check: explain why we do not care whether old side is binary
Before this patch, name_width becomes negative or null for width values
less than 15 and name_width values greater than 25 (default: 50). This
leads to output random data.
This patch checks for minimal width and name_width values.
Signed-off-by: Olivier Marin <dkr@freesurf.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This teaches "diff --check" to detect and complain if the change
adds lines that look like leftover conflict markers.
We should be able to remove the old Perl script used in the sample
pre-commit hook and modernize the script with this facility.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When a patch adds new blank lines at the end, "git apply --whitespace"
warns. This teaches "diff --check" to do the same.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The function name was too bland and not explicit enough as to what it is
checking. Split it into two, and call the one that checks if there is a
whitespace breakage "ws_check()", and call the other one that checks and
emits the line after color coding "ws_check_emit()".
Signed-off-by: Junio C Hamano <gitster@pobox.com>
All other codepaths refrain from running textual diff when either the old
or the new side is binary, but this function only checks the new side. I
was almost going to change it to check both, but that would be a bad
change. Explain why to prevent future mistakes.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git diff --check" should return non-zero when there was any whitespace
error but the code only paid attention to the error status of the last
new line in the patch.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* jk/test:
enable whitespace checking of test scripts
avoid trailing whitespace in zero-change diffstat lines
avoid whitespace on empty line in automatic usage message
mask necessary whitespace policy violations in test scripts
fix whitespace violations in test scripts
It worked that way since commit 50f575fc (Tweak diff colors,
2006-06-22), but commit c1795bb0 (Unify whitespace checking, 2007-12-13)
changed it. This patch restores the old behaviour.
Besides Linus' arguments in the log message of 50f575fc, resetting color
before printing newline is also important to keep 'git add --patch'
happy. If the last line(s) of a file are removed, then that hunk will
end with a colored line. However, if the newline comes before the color
reset, then the diff output will have an additional line at the end
containing only the reset sequence. This causes trouble in
git-add--interactive.perl's parse_diff function, because @colored will
have one more element than @diff, and that last element will contain the
color reset. The elements of these arrays will then be copied to @hunk,
but only as many as the number of elements in @diff. As a result the
last color reset is lost and all subsequent terminal output will be
printed in color.
Signed-off-by: SZEDER Gábor <szeder@ira.uka.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
In some cases, we produce a diffstat line even though no
lines have changed (e.g., because of an exact rename). In
this case, there is no +/- "graph" after the number of
changed lines. However, we output the space separator
unconditionally, meaning that these lines contained a
trailing space character.
This isn't a huge problem, but in cleaning up the output we
are able to eliminate some trailing whitespace from a test
vector.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The new option --ignore-submodules can now be used to ignore changes in
submodules.
Why? Sometimes it is not interesting when a submodule changed.
For example, when reordering some commits in the superproject, a dirty
submodule is usually totally uninteresting. So we will use this option
in git-rebase to test for a dirty working tree.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
git_config() only had a function parameter, but no callback data
parameter. This assumes that all callback functions only modify
global variables.
With this patch, every callback gets a void * parameter, and it is hoped
that this will help the libification effort.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The current rename limit default of 100 was arbitrarily
chosen. Testing[1] has shown that on modern hardware, a
limit of 200 adds about a second of computation time, and a
limit of 500 adds about 5 seconds of computation time.
This patch bumps the default limit to 200 for viewing diffs,
and to 500 for performing a merge. The limit for generating
git-status templates is set independently; we bump it up to
200 here, as well, to match the diff limit.
[1]: See <20080211113516.GB6344@coredump.intra.peff.net>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
These variables were made unnecessary by commit
3969cf7db1.
Signed-off-by: Adam Simpkins <adam@adamsimpkins.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Instead of counting added and removed lines (and mixing the byte size
reported for binary files in the result), summarize the extent of damage
the same way as we count similarity for rename detection.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Ping Yin noticed that "git diff-index --raw" shows 0{40} when work tree
has submodule difference, but "git diff --raw" didn't correctly do so.
There was a mistake in the diffcore_skip_stat_unmatch() that was meant to
clean up the stat-only difference for running diff between the index and
work tree and diff between the tree and the work tree, to cause it re-read
from the submodule repository HEAD. When ce_stat_match() says work tree
is different, we should always say 0{40} on the work tree side.
This patch fixes the issue, and adds tests.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Now find_unique_abbrev() never returns NULL, there is no need for callers
to prepare for seeing NULL and fall back to giving the full 40-hexdigits.
While we are at it, drop "..." in the "git reset" output that reports the
location of the new HEAD, between the abbreviated commit object name and
the one line commit summary. Because we are always showing the HEAD
(which cannot be missing!), we never had a case where we show the full 40
hexdigits that is not followed by three dots, and these three dots were
stealing 3 columns from the precious horizontal screen real estate out of
80 that can better be used for the one line commit summary.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* maint:
Documentation/git-am.txt: Pass -r in the example invocation of rm -f .dotest
timezone_names[]: fixed the tz offset for New Zealand.
filter-branch documentation: non-zero exit status in command abort the filter
rev-parse: fix potential bus error with --parseopt option spec handling
Use a single implementation and API for copy_file()
Documentation/git-filter-branch: add a new msg-filter example
Correct fast-export file mode strings to match fast-import standard
Originally by Kristian Hï¿œgsberg; I fixed the conversion of rerere, which
had a different API.
Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We do not account binary nor unmerged files when --shortstat is
asked for (or the summary stat at the end of --stat).
The new option --dirstat should work the same way as it is about
summarizing the changes of multiple files by adding them up.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This change removes all obvious useless if-before-free tests.
E.g., it replaces code like this:
if (some_expression)
free (some_expression);
with the now-equivalent:
free (some_expression);
It is equivalent not just because POSIX has required free(NULL)
to work for a long time, but simply because it has worked for
so long that no reasonable porting target fails the test.
Here's some evidence from nearly 1.5 years ago:
http://www.winehq.org/pipermail/wine-patches/2006-October/031544.html
FYI, the change below was prepared by running the following:
git ls-files -z | xargs -0 \
perl -0x3b -pi -e \
's/\bif\s*\(\s*(\S+?)(?:\s*!=\s*NULL)?\s*\)\s+(free\s*\(\s*\1\s*\))/$2/s'
Note however, that it doesn't handle brace-enclosed blocks like
"if (x) { free (x); }". But that's ok, since there were none like
that in git sources.
Beware: if you do use the above snippet, note that it can
produce syntactically invalid C code. That happens when the
affected "if"-statement has a matching "else".
E.g., it would transform this
if (x)
free (x);
else
foo ();
into this:
free (x);
else
foo ();
There were none of those here, either.
If you're interested in automating detection of the useless
tests, you might like the useless-if-before-free script in gnulib:
[it *does* detect brace-enclosed free statements, and has a --name=S
option to make it detect free-like functions with different names]
http://git.sv.gnu.org/gitweb/?p=gnulib.git;a=blob;f=build-aux/useless-if-before-free
Addendum:
Remove one more (in imap-send.c), spotted by Jean-Luc Herren <jlh@gmx.ch>.
Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jeff King
Junio C Hamano
Brian Downing
Brandon Casey
Jonathan del Strother
Shawn O. Pearce
Linus Torvalds
Nicolas Pitre
Andreas Ericsson
Heikki Orsila
Johan Herland
Kirill Smelkov
Jim Meyering
Gustaf Hendeby
Giuseppe Bilotta
Avery Pennarun
Kevin Ballard
Dmitry Potapov
Brian Hetro
Olivier Marin
SZEDER Gábor
Johannes Schindelin
Adam Simpkins
Daniel Barkalow