The final output from diff used to compare pathnames between
preimage and postimage to tell if the filepair is a rename/copy.
By explicitly marking the filepair created by diffcore_rename(),
the output routine, resolve_rename_copy(), does not have to do
so anymore. This helps feeding a filepair that has different
pathnames in one and two elements to the diff machinery (most
notably, comparing two blobs).
Signed-off-by: Junio C Hamano <junkio@cox.net>
enable/disable colored output when the pager is in use
Signed-off-by: Matthias Lederhofer <matled@gmx.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
When paging through the output of git-whatchanged, the color cues help to
visually navigate within a diff. However, it is difficult to notice when a
new commit starts, because the commit and log are shown in the "normal"
color. This patch colorizes the 'commit' line, customizable through
diff.colors.commit and defaulting to yellow.
As a side effect, some of the diff color engine (slot enum, get_color) has
become accessible outside of diff.c.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Add support for more than 8 colors. Colors can be specified as numbers
-1..255. -1 is same as "normal".
Signed-off-by: Timo Hirvonen <tihirvon@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Make it possible to set both colors and a attribute for diff colors.
Background colors are supported too.
Syntax is now:
[attr] [fg [bg]]
[fg [bg]] [attr]
Empty value is same as "normal normal", ie use default colors. The new
syntax is backwards compatible.
Signed-off-by: Timo Hirvonen <tihirvon@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
In a handful places, we use C99 structure and array
initializers, which some compilers do not support.
This can be handy when you are trying to compile GIT on a
Solaris system that has an older C compiler, for example.
Signed-off-by: Junio C Hamano <junkio@cox.net>
This allows you to say:
git -p diff v2.6.16-rc5..
and the command pipes the output of any git command to your pager.
[jc: this resurrects a month old RFC patch with improvement
suggested by Linus to call it --paginate instead of --less.]
Signed-off-by: Junio C Hamano <junkio@cox.net>
The Porcelainish has become so much usable as the UI that there
is not much reason people should be using the core programs by
hand anymore. At this point we are better off making the
behaviour of the core programs predictable by keeping them
unaffected by the configuration variables. Otherwise they will
become very hard to use as reliable building blocks.
For example, "git-commit -a" internally uses git-diff-files to
figure out the set of paths that need to be updated in the
index, and we should never allow diff.renames that happens to be
in the configuration to interfere (or slow down the process).
The UI level configuration such as showing renamed diff and
coloring are still honored by the Porcelainish ("git log" family
and "git diff"), but not by the core anymore.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Even if the standard output is connected to a tty, do not
colorize the diff if we are talking to a dumb terminal when
diff.color configuration variable is set to "auto".
Signed-off-by: Junio C Hamano <junkio@cox.net>
diff.renames is mentioned several times in the documentation,
but to my surprise it didn't do anything before this patch.
Also add the --no-renames option to override this from the
command-line.
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Add new item text to struct diff_options.
If set then do not try to detect binary files.
Signed-off-by: Stephan Feder <sf@b-i-t.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
The binary file detection is just a heuristic which can well fail.
Do not produce garbage patches in these cases.
Signed-off-by: Stephan Feder <sf@b-i-t.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
With the change in default, "git add ." on kernel dir is about
twice as fast as before, with only minimal (0.5%) change in
object size. The speed difference is even more noticeable
when committing large files, which is now up to 8 times faster.
The configurability is through setting core.compression = [-1..9]
which maps to the zlib constants; -1 is the default, 0 is no
compression, and 1..9 are various speed/size tradeoffs, 9
being slowest.
Signed-off-by: Joachim B Haga (cjhaga@fys.uio.no)
Acked-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
The function internally generated diff to get the patch id but
passed a wrong emit flags to the xdiff layer when it did so.
Signed-off-by: Junio C Hamano <junkio@cox.net>
This fixes various problems in the new diff options code.
- Fix --cc/-c --patch; it showed two-tree diff used internally.
- Use "---\n" only where it matters -- that is, use it
immediately after the commit log text when we show a
commit log and something else before the patch text.
- Do not output spurious extra "\n"; have an extra newline
after the commit log text always when we have diff output and
we are not doing oneline.
- When running a pickaxe you need to go recursive.
Signed-off-by: Junio C Hamano <junkio@cox.net>
setup_revisions() calls diff_setup_done() before we can set default
value for output_format. Don't convert DIFF_FORMAT_NO_OUTPUT to 0 in
diff_setup_done(), it is useless and makes diff-tree believe no diff
format parameters were given and thus lets it reset output_format to
DIFF_FORMAT_RAW.
Signed-off-by: Timo Hirvonen <tihirvon@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Add msg_sep variable to struct diff_options. msg_sep is printed after
commit message. Default is "\n", format-patch sets it to "---\n".
This also removes the second argument from show_log() because all
callers derived it from the first argument:
show_log(rev, rev->loginfo, ...
Signed-off-by: Timo Hirvonen <tihirvon@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Initialize output_format to 0 instead of DIFF_FORMAT_RAW so that we can see
later if any command line options changed it. Default value is set only if
output format was not specified.
Signed-off-by: Timo Hirvonen <tihirvon@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
DIFF_FORMAT_* are now bit-flags instead of enumerated values.
Signed-off-by: Timo Hirvonen <tihirvon@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Call it like this:
unsigned char id[20];
if (diff_flush_patch_id(diff_options, id))
printf("And the patch id is: %s\n", sha1_to_hex(id));
Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This lets you use something like this in your $GIT_DIR/config
file.
[diff]
color = auto
[diff.color]
new = blue
old = yellow
frag = reverse
When diff.color is set to "auto", colored diff is enabled when
the standard output is the terminal. Other choices are "always",
and "never". Usual boolean true/false can also be used.
The colormap entries can specify colors for the following slots:
plain - lines that appear in both old and new file (context)
meta - diff --git header and extended git diff headers
frag - @@ -n,m +l,k @@ lines (hunk header)
old - lines deleted from old file
new - lines added to new file
The following color names can be used:
normal, bold, dim, l, blink, reverse, reset,
black, red, green, yellow, blue, magenta, cyan,
white
Signed-off-by: Junio C Hamano <junkio@cox.net>
This adds -b (--ignore-space-change) and -w (--ignore-all-space) flags to
diff. The main part of the patch is teaching libxdiff about it.
[jc: renamed xdl_line_match() to xdl_recmatch() since the former is used
for different purposes in xpatchi.c which is in the parts of the upstream
source we do not use.]
Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This patch does:
- always reset the color _before_ printing out the newline.
This is actually important. You (and Johannes) didn't see it, because
it only matters if you set the background, but if you don't do this,
you get some random and funky behaviour if you pick a color with a
non-default background (which still potentially has problems with tabs
etc, but less so).
- allow people to have a different color for the "file headers"
(DIFF_METAINFO) and for the "fragment header" (DIFF_FRAGINFO). Also,
make a difference between "normal color" and "reset colors"
- default to red/green for old/new lines. That's the norm, I'd think.
- instead of that eye-popping (and eye-ball-with-a-fondue-fork-popping)
purple color for metadata, use bold-face for file headers, and cyan for
the frag headers. I actually prefer the "gray background" for that, but
it only works well in xterms, so COLOR_CYAN it is..
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
ANSI C99 doesn't allow void-pointer arithmetic. This patch fixes this in
various ways. Usually the strategy that required the least changes was used.
Signed-off-by: Florian Forster <octo@verplant.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This patch is a slightly adjusted version of Junio's patch:
http://www.gelato.unsw.edu.au/archives/git/0604/19354.html
However, instead of using a config variable, this patch makes it available
as a diff option.
Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Currently the summary is displayed after the patch. Fix this so
that the output order is stat-summary-patch. As a consequence of
the way this is coded, the --summary option will only actually
display summary data if combined with either the --stat or
--patch-with-stat option.
Signed-off-by: Sean Estabrooks <seanlkml@sympatico.ca>
Signed-off-by: Junio C Hamano <junkio@cox.net>
output_format == DIFFSTAT and with_stat == true does not make sense, and
the way the code is structured it causes trouble. Avoid it.
Signed-off-by: Junio C Hamano <junkio@cox.net>
The second parameter is not the end of string input; it is
the optional return value to retrieve where the parser stopped.
Signed-off-by: Junio C Hamano <junkio@cox.net>
This patch touches a couple of files, because it adds options to print a
custom text just after the subject of a commit, and just after the
diffstat.
[jc: made "many dashes" used as the boundary leader into a single
variable, to reduce the possibility of later tweaks to miscount the
number of dashes to break it.]
Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Actually, it is a diff option now, so you can say
git diff --check
to ask if what you are about to commit is a good patch.
[jc: this also would work for fmt-patch, but the point is that
the check is done before making a commit. format-patch is run
from an already created commit, and that is too late to catch
whitespace damaged change.]
Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
When renaming leading/a/filename to leading/b/filename (and
"filename" is sufficiently long), we tried to squash the rename
to "leading/{a => b}/filename". However, when "/a" or "/b" part
is empty, we underflowed and tried to print a substring of
length -1.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Remove the need to pipe git diff through git apply to
get the extended headers summary.
Signed-off-by: Sean Estabrooks <seanlkml@sympatico.ca>
Signed-off-by: Junio C Hamano <junkio@cox.net>
We used to parse "-U" and "--unified" as part of the GIT_DIFF_OPTS
environment variable, but strangely enough we would _not_ parse them as
part of the normal diff command line (where we only accepted "-u").
This adds parsing of -U and --unified, both with an optional numeric
argument. So now you can just say
git diff --unified=5
to get a unified diff with a five-line context, instead of having to do
something silly like
GIT_DIFF_OPTS="--unified=5" git diff -u
(that silly format does continue to still work, of course).
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
When we cut off the front of a filename to make it fit on the line, we add
a "..." in front. However, the way the "git diff" code was written, we
will never reset the prefix back to the empty string, so every single
filename afterwards will have the "..." prefix, whether appropriate or
not.
You can see this with "git diff v2.6.16.." on the current kernel tree,
since there are filenames with long names that changed there:
[ snip snip ]
Documentation/filesystems/vfs.txt | 229
.../firmware_class/firmware_sample_driver.c | 3
.../firmware_sample_firmware_class.c | 1
...Documentation/fujitsu/frv/kernel-ABI.txt | 192
...Documentation/hwmon/w83627hf | 4
[ snip snip ]
notice how the two Documentation/firmware** filenames caused the "..." to
be added, but then the later filenames don't want it, and it also screws
up the alignment of the line numbering afterwards.
Trivially fixed by moving the declaration (and initial setting) of the
"prefix" variable into the for-loop where it is used.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This updates the user interface and generated diff data format.
* "diff --binary" is used to signal that we want an e-mailable
binary patch. It implies --full-index and -p.
* "apply --allow-binary-replacement" acquired a short synonym
"apply --binary".
* After the "GIT binary patch\n" header line there is a token
to record which binary patch mechanism was used, so that we
can extend it later. Currently there are two mechanisms
defined: "literal" and "delta". The former records the
deflated postimage and the latter records the deflated delta
from the preimage to postimage.
For purely implementation convenience, I added the deflated
length after these "literal/delta" tokens (otherwise the
decoding side needs to guess and reallocate the buffer while
inflating). Improvement patches are very welcomed.
Signed-off-by: Junio C Hamano <junkio@cox.net>
This adds "binary patch" to the diff output and teaches apply
what to do with them.
On the diff generation side, traditionally, we said "Binary
files differ\n" without giving anything other than the preimage
and postimage object name on the index line. This was good
enough for applying a patch generated from your own repository
(very useful while rebasing), because the postimage would be
available in such a case. However, this was not useful when the
recipient of such a patch via e-mail were to apply it, even if
the preimage was available.
This patch allows the diff to generate "binary" patch when
operating under --full-index option. The binary patch follows
the usual extended git diff headers, and looks like this:
"GIT binary patch\n"
<length byte><data>"\n"
...
"\n"
Each line is prefixed with a "length-byte", whose value is upper
or lowercase alphabet that encodes number of bytes that the data
on the line decodes to (1..52 -- 'A' means 1, 'B' means 2, ...,
'Z' means 26, 'a' means 27, ...). <data> is 1 or more groups of
5-byte sequence, each of which encodes up to 4 bytes in base85
encoding. Because 52 / 4 * 5 = 65 and we have the length byte,
an output line is capped to 66 characters. The payload is the
same diff-delta as we use in the packfiles.
On the consumption side, git-apply now can decode and apply the
binary patch when --allow-binary-replacement is given, the diff
was generated with --full-index, and the receiving repository
has the preimage blob, which is the same condition as it always
required when accepting an "Binary files differ\n" patch.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Somebody on the #git channel complained that the sha1_to_hex() thing uses
a static buffer which caused an error message to show the same hex output
twice instead of showing two different ones.
That's pretty easily rectified by making it uses a simple LRU of a few
buffers, which also allows some other users (that were aware of the buffer
re-use) to be written in a more straightforward manner.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
The patch format shows complete rewrite as deletion of all old lines
followed by addition of all new lines. Count lines consistenly with
that when doing diffstat.
Signed-off-by: Junio C Hamano <junkio@cox.net>
This is the first installment to libify diff brothers.
The updated diff-files uses revision.c::setup_revisions()
infrastructure to parse its command line arguments, which means
the pathname arguments are checked more strictly than before.
The tests are adjusted to separate possibly missing paths from
the rest of arguments with double-dashes, to show the kosher
way.
As Linus pointed out, renaming diff.c to diff-lib.c was simply
stupid, so I am renaming it back. The new diff-lib.c is to
contain pieces extracted from diff brothers.
Signed-off-by: Junio C Hamano <junkio@cox.net>
When a verbatim rename or copy is detected, we did not show
anything on the "diff --stat" for the filepair. This makes it
to show the rename information.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Junio C Hamano