Ok, I've really held off doing this too damn long, because I'm lazy, and I
was always hoping that somebody else would do it.
But no, people keep asking for it, but nobody actually did anything, so I
decided I might as well bite the bullet, and instead of telling people
they could add a "--follow" flag to "git log" to do what they want to do,
I decided that it looks like I just have to do it for them..
The code wasn't actually that complicated, in that the diffstat for this
patch literally says "70 insertions(+), 1 deletions(-)", but I will have
to admit that in order to get to this fairly simple patch, you did have to
know and understand the internal git diff generation machinery pretty
well, and had to really be able to follow how commit generation interacts
with generating patches and generating the log.
So I suspect that while I was right that it wasn't that hard, I might have
been expecting too much of random people - this patch does seem to be
firmly in the core "Linus or Junio" territory.
To make a long story short: I'm sorry for it taking so long until I just
did it.
I'm not going to guarantee that this works for everybody, but you really
can just look at the patch, and after the appropriate appreciative noises
("Ooh, aah") over how clever I am, you can then just notice that the code
itself isn't really that complicated.
All the real new code is in the new "try_to_follow_renames()" function. It
really isn't rocket science: we notice that the pathname we were looking
at went away, so we start a full tree diff and try to see if we can
instead make that pathname be a rename or a copy from some other previous
pathname. And if we can, we just continue, except we show *that*
particular diff, and ever after we use the _previous_ pathname.
One thing to look out for: the "rename detection" is considered to be a
singular event in the _linear_ "git log" output! That's what people want
to do, but I just wanted to point out that this patch is *not* carrying
around a "commit,pathname" kind of pair and it's *not* going to be able to
notice the file coming from multiple *different* files in earlier history.
IOW, if you use "git log --follow", then you get the stupid CVS/SVN kind
of "files have single identities" kind of semantics, and git log will just
pick the identity based on the normal move/copy heuristics _as_if_ the
history could be linearized.
Put another way: I think the model is broken, but given the broken model,
I think this patch does just about as well as you can do. If you have
merges with the same "file" having different filenames over the two
branches, git will just end up picking _one_ of the pathnames at the point
where the newer one goes away. It never looks at multiple pathnames in
parallel.
And if you understood all that, you probably didn't need it explained, and
if you didn't understand the above blathering, it doesn't really mtter to
you. What matters to you is that you can now do
git log -p --follow builtin-rev-list.c
and it will find the point where the old "rev-list.c" got renamed to
"builtin-rev-list.c" and show it as such.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We already have two instances where we want to determine if a buffer
contains binary data as opposed to text.
[jc: cherry-picked 6bfce93e from 'master']
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Earlier, a second "-C" on the command line had no effect.
But "--find-copies-harder" is so long to type, let's make doubled -C
enable that option. It is in line with how "git blame" handles such
doubled options to mean "work harder".
Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This uses "git-apply --whitespace=strip" to fix whitespace errors that have
crept in to our source files over time. There are a few files that need
to have trailing whitespaces (most notably, test vectors). The results
still passes the test, and build result in Documentation/ area is unchanged.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We already have two instances where we want to determine if a buffer
contains binary data as opposed to text.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* maint:
Fix git-svn to handle svn not reporting the md5sum of a file, and test.
Fix mishandling of $Id$ expanded in the repository copy in convert.c
More echo "$user_message" fixes.
Add tests for the last two fixes.
git-commit: use printf '%s\n' instead of echo on user-supplied strings
git-am: use printf instead of echo on user-supplied strings
Documentation: Add definition of "evil merge" to GIT Glossary
Replace the last 'dircache's by 'index'
Documentation: Clean up links in GIT Glossary
* maint-1.5.1:
Fix git-svn to handle svn not reporting the md5sum of a file, and test.
More echo "$user_message" fixes.
Add tests for the last two fixes.
git-commit: use printf '%s\n' instead of echo on user-supplied strings
git-am: use printf instead of echo on user-supplied strings
Documentation: Add definition of "evil merge" to GIT Glossary
Replace the last 'dircache's by 'index'
Documentation: Clean up links in GIT Glossary
* maint-1.5.1:
annotate: make it work from subdirectories.
git-config: Correct asciidoc documentation for --int/--bool
t1300: Add tests for git-config --bool --get
unpack-trees.c: verify_uptodate: remove dead code
Use PATH_MAX instead of TEMPFILE_PATH_LEN
branch: fix segfault when resolving an invalid HEAD
This patch fixes all calls to xread() where the return value is not
stored into an ssize_t. The patch should not have any effect whatsoever,
other than putting better/more appropriate type names on variables.
Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
diff_filespec has a slot to record the size of the data already,
so make use of it instead of a separate size cache.
Signed-off-by: Junio C Hamano <junkio@cox.net>
This reduces the memory pressure when dealing with many paths.
An unscientific test of running "diff-tree --stat --summary -M"
between v2.6.19 and v2.6.20-rc1 in the linux kernel repository
indicates that the number of minor faults are reduced by 2/3.
Signed-off-by: Junio C Hamano <junkio@cox.net>
* maint:
gitweb: use decode_utf8 directly
posix compatibility for t4200
Document 'opendiff' value in config.txt and git-mergetool.txt
Allow PERL_PATH="/usr/bin/env perl"
Make xstrndup common
diff.c: fix "size cache" handling.
http-fetch: Disable use of curl multi support for libcurl < 7.16.
We broke the size-cache handling when we changed the function
signature of sha1_object_info() in 21666f1a. We obviously
wanted to cache the size we obtained when sha1_object_info()
succeeded, not when it failed.
Signed-off-by: Junio C Hamano <junkio@cox.net>
This enhances the attributes mechanism so that external programs
meant for existing GIT_EXTERNAL_DIFF interface can be specifed
per path.
To configure such a custom diff driver, first define a custom
diff driver in the configuration:
[diff "my-c-diff"]
command = <<your command string comes here>>
Then mark the paths that you want to use this custom driver
using the attribute mechanism.
*.c diff=my-c-diff
The intent of this separation is that the attribute mechanism is
used for specifying the type of the contents, while the
configuration mechanism is used to define what needs to be done
to that type of the contents, which would be specific to both
platform and personal taste.
Signed-off-by: Junio C Hamano <junkio@cox.net>
* 'jc/attr': (28 commits)
lockfile: record the primary process.
convert.c: restructure the attribute checking part.
Fix bogus linked-list management for user defined merge drivers.
Simplify calling of CR/LF conversion routines
Document gitattributes(5)
Update 'crlf' attribute semantics.
Documentation: support manual section (5) - file formats.
Simplify code to find recursive merge driver.
Counto-fix in merge-recursive
Fix funny types used in attribute value representation
Allow low-level driver to specify different behaviour during internal merge.
Custom low-level merge driver: change the configuration scheme.
Allow the default low-level merge driver to be configured.
Custom low-level merge driver support.
Add a demonstration/test of customized merge.
Allow specifying specialized merge-backend per path.
merge-recursive: separate out xdl_merge() interface.
Allow more than true/false to attributes.
Document git-check-attr
Change attribute negation marker from '!' to '-'.
...
It was bothering me a lot that I abused small integer values
casted to (void *) to represent non string values in
gitattributes. This corrects it by making the type of attribute
values (const char *), and using the address of a few statically
allocated character buffer to denote true/false. Unset attributes
are represented as having NULLs as their values.
Added in-header documentation to explain how git_checkattr()
routine should be called.
Signed-off-by: Junio C Hamano <junkio@cox.net>
This allows you to define three values (and possibly more) to
each attribute: true, false, and unset.
Typically the handlers that notice and act on attribute values
treat "unset" attribute to mean "do your default thing"
(e.g. crlf that is unset would trigger "guess from contents"),
so being able to override a setting to an unset state is
actually useful.
- If you want to set the attribute value to true, have an entry
in .gitattributes file that mentions the attribute name; e.g.
*.o binary
- If you want to set the attribute value explicitly to false,
use '-'; e.g.
*.a -diff
- If you want to make the attribute value _unset_, perhaps to
override an earlier entry, use '!'; e.g.
*.a -diff
c.i.a !diff
This also allows string values to attributes, with the natural
syntax:
attrname=attrvalue
but you cannot use it, as nobody takes notice and acts on
it yet.
Signed-off-by: Junio C Hamano <junkio@cox.net>
This is in the same spirit as the previous one. Earlier 'diff'
meant 'do the built-in binary heuristics and disable patch text
generation based on it' while '!diff' meant 'do not guess, do
not generate patch text'. There was no way to say 'do generate
patch text even when the heuristics says it has NUL in it'.
Signed-off-by: Junio C Hamano <junkio@cox.net>
The same way we generate diffs on symlinks as the the diff of text of the
symlink, we can generate subproject diffs (when not recursing into them!)
as the diff of the text that describes the subproject.
Of course, since what descibes a subproject is just the SHA1, that's what
we'll use. Add some pretty-printing to make it a bit more obvious what is
going on, and we're done.
So with this, we can get both raw diffs and "textual" diffs of subproject
changes:
- git diff --raw:
:160000 160000 2de597b5ad348b7db04bd10cdd38cd81cbc93ab5 0000000... M sub-A
- git diff:
diff --git a/sub-A b/sub-A
index 2de597b..e8f11a4 160000
--- a/sub-A
+++ b/sub-A
@@ -1 +1 @@
-Subproject commit 2de597b5ad348b7db04bd10cdd38cd81cbc93ab5
+Subproject commit e8f11a45c5c6b9e2fec6d136d3fb5aff75393d42
NOTE! We'll also want to have the ability to recurse into the subproject
and actually diff it recursively, but that will involve a new command line
option (I'd suggest "--subproject" and "-S", but the latter is in use by
pickaxe), and some very different code.
But regardless of ay future recursive behaviour, we need the non-recursive
version too (and it should be the default, at least in the absense of
config options, so that large superprojects don't default to something
extremely expensive).
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This makes paths that explicitly unset 'diff' attribute not to
produce "textual" diffs from 'git-diff' family.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Previously, a binary file in the diffstat would show as:
some-binary-file.bin | Bin
The space after the "Bin" was never used. This patch changes binary
lines in the diffstat to be:
some-binary-file.bin | Bin 12345 -> 123456 bytes
The very nice "->" notation was suggested by Johannes Schindelin, and
shows the before and after sizes more clearly than "+" and "-" would.
If a size is 0 it's not shown (although it would probably be better to
treat no-file differently from zero-byte-file).
The user can see what changed in the binary file, and how big the new
file is. This is in keeping with the information in the rest of the
diffstat.
The diffstat_t members "added" and "deleted" were unused when the file
was binary, so this patch loads them with the file sizes in
builtin_diffstat(). These figures are then read in show_stats() when
the file is marked binary.
Signed-off-by: Andy Parkins <andyparkins@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This adds the command line option 'quiet' to tell 'git diff-*'
that we are not interested in the actual diff contents but only
want to know if there is any change. This option automatically
turns --exit-code on, and turns off output formatting, as it
does not make much sense to show the first hit we happened to
have found.
The --quiet option is silently turned off (but --exit-code is
still in effect, so is silent output) if postprocessing filters
such as pickaxe and diff-filter are used. For all practical
purposes I do not think of a reason to want to use these filters
and not viewing the diff output.
The backends have not been taught about the option with this patch.
That is a topic for later rounds.
Signed-off-by: Junio C Hamano <junkio@cox.net>
This introduces a new command-line option: --exit-code. The diff
programs will return 1 for differences, return 0 for equality, and
something else for errors.
Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
* js/diff-ni:
Get rid of the dependency to GNU diff in the tests
diff --no-index: support /dev/null as filename
diff-ni: fix the diff with standard input
diff: support reading a file from stdin via "-"
Some systems have sizeof(off_t) == 8 while sizeof(size_t) == 4.
This implies that we are able to access and work on files whose
maximum length is around 2^63-1 bytes, but we can only malloc or
mmap somewhat less than 2^32-1 bytes of memory.
On such a system an implicit conversion of off_t to size_t can cause
the size_t to wrap, resulting in unexpected and exciting behavior.
Right now we are working around all gcc warnings generated by the
-Wshorten-64-to-32 option by passing the off_t through xsize_t().
In the future we should make xsize_t on such problematic platforms
detect the wrapping and die if such a file is accessed.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
The earlier commit to read from stdin was full of problems, and
this corrects them.
- The mode bits should have been set to satisify S_ISREG(); we
forgot to the S_IFREG bits and hardcoded 0644;
- We did not give escape hatch to name a path whose name is
really "-". Allow users to say "./-" for that;
- Use of xread() was not prepared to see short read (e.g. reading
from tty) nor handing read errors.
Signed-off-by: Junio C Hamano <junkio@cox.net>
This allows you to say
echo Hello World | git diff x -
to compare the contents of file "x" with the line "Hello World".
This automatically switches to --no-index mode.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
* np/types:
Cleanup check_valid in commit-tree.
make sure enum object_type is signed
get rid of lookup_object_type()
convert object type handling from a string to a number
formalize typename(), and add its reverse type_from_string()
sha1_file.c: don't ignore an error condition in sha1_loose_object_info()
sha1_file.c: cleanup "offset" usage
sha1_file.c: cleanup hdr usage
We currently have two parallel notation for dealing with object types
in the code: a string and a numerical value. One of them is obviously
redundent, and the most used one requires more stack space and a bunch
of strcmp() all over the place.
This is an initial step for the removal of the version using a char array
found in object reading code paths. The patch is unfortunately large but
there is no sane way to split it in smaller parts without breaking the
system.
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
diff sets the exit status to 0 when no changes were found, to 1
when changes were found, and 2 means error.
We imitate this to be able to use "git diff" in the test scripts.
(Actually, keeping in line with the rest of git, -1 is returned
on error, which corresponds to an exit status 255).
To find out if the diff is not empty, a member called
"found_changes" was introduced in struct diff_options, which is
set in builtin_diff() and fn_out_consume().
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
* master: (201 commits)
Documentation: link in 1.5.0.2 material to the top documentation page.
Documentation: document remote.<name>.tagopt
GIT 1.5.0.2
git-remote: support remotes with a dot in the name
Documentation: describe "-f/-t/-m" options to "git-remote add"
diff --cc: fix display of symlink conflicts during a merge.
merge-recursive: fix longstanding bug in merging symlinks
merge-index: fix longstanding bug in merging symlinks
diff --cached: give more sensible error message when HEAD is yet to be created.
Update tests to use test-chmtime
Add test-chmtime: a utility to change mtime on files
Add Release Notes to prepare for 1.5.0.2
Allow arbitrary number of arguments to git-pack-objects
rerere: do not deal with symlinks.
rerere: do not skip two conflicted paths next to each other.
Don't modify CREDITS-FILE if it hasn't changed.
diff-patch: Avoid emitting double-slashes in textual patch.
Reword git-am 3-way fallback failure message.
Limit filename for format-patch
core.legacyheaders: Use the description used in RelNotes-1.5.0
...
* maint:
diff-patch: Avoid emitting double-slashes in textual patch.
Reword git-am 3-way fallback failure message.
Limit filename for format-patch
core.legacyheaders: Use the description used in RelNotes-1.5.0
git-show-ref --verify: Fail if called without a reference
Conflicts:
builtin-show-ref.c
diff.c
* lt/crlf:
Teach core.autocrlf to 'git apply'
t0020: add test for auto-crlf
Make AutoCRLF ternary variable.
Lazy man's auto-CRLF
* jc/apply-config:
t4119: test autocomputing -p<n> for traditional diff input.
git-apply: guess correct -p<n> value for non-git patches.
git-apply: notice "diff --git" patch again
Fix botched "leak fix"
t4119: add test for traditional patch and different p_value
apply: fix memory leak in prefix_one()
git-apply: require -p<n> when working in a subdirectory.
git-apply: do not lose cwd when run from a subdirectory.
Teach 'git apply' to look at $HOME/.gitconfig even outside of a repository
Teach 'git apply' to look at $GIT_DIR/config
With this flag and given two paths, git-diff-files behaves as a GNU diff
lookalike (plus the git goodies like --check, colour, etc.). This flag
is also available in git-diff. It also works outside of a git repository.
In addition, if git-diff{,-files} is called without revision or stage
parameter, and with exactly two paths at least one of which is not tracked,
the default is --no-index.
So, you can now say
git diff /etc/inittab /etc/fstab
and it actually works!
This also unifies the duplicated argument parsing between cmd_diff_files()
and builtin_diff_files().
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Matthias Lederhofer noticed that `diff -B` did not pick up on diff
colournig.
Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
There were instances of strncmp() that were formatted improperly
(e.g. whitespace around parameter before closing parenthesis)
that caused the earlier mechanical conversion step to miss
them. This step cleans them up.
Signed-off-by: Junio C Hamano <junkio@cox.net>
This mechanically converts strncmp() to use prefixcmp(), but only when
the parameters match specific patterns, so that they can be verified
easily. Leftover from this will be fixed in a separate step, including
idiotic conversions like
if (!strncmp("foo", arg, 3))
=>
if (!(-prefixcmp(arg, "foo")))
This was done by using this script in px.perl
#!/usr/bin/perl -i.bak -p
if (/strncmp\(([^,]+), "([^\\"]*)", (\d+)\)/ && (length($2) == $3)) {
s|strncmp\(([^,]+), "([^\\"]*)", (\d+)\)|prefixcmp($1, "$2")|;
}
if (/strncmp\("([^\\"]*)", ([^,]+), (\d+)\)/ && (length($1) == $3)) {
s|strncmp\("([^\\"]*)", ([^,]+), (\d+)\)|(-prefixcmp($2, "$1"))|;
}
and running:
$ git grep -l strncmp -- '*.c' | xargs perl px.perl
Signed-off-by: Junio C Hamano <junkio@cox.net>
Reuse the colour handling of the regular diff.
Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
It currently does NOT know about file attributes, so it does its
conversion purely based on content. Maybe that is more in the "git
philosophy" anyway, since content is king, but I think we should try to do
the file attributes to turn it off on demand.
Anyway, BY DEFAULT it is off regardless, because it requires a
[core]
AutoCRLF = true
in your config file to be enabled. We could make that the default for
Windows, of course, the same way we do some other things (filemode etc).
But you can actually enable it on UNIX, and it will cause:
- "git update-index" will write blobs without CRLF
- "git diff" will diff working tree files without CRLF
- "git checkout" will write files to the working tree _with_ CRLF
and things work fine.
Funnily, it actually shows an odd file in git itself:
git clone -n git test-crlf
cd test-crlf
git config core.autocrlf true
git checkout
git diff
shows a diff for "Documentation/docbook-xsl.css". Why? Because we have
actually checked in that file *with* CRLF! So when "core.autocrlf" is
true, we'll always generate a *different* hash for it in the index,
because the index hash will be for the content _without_ CRLF.
Is this complete? I dunno. It seems to work for me. It doesn't use the
filename at all right now, and that's probably a deficiency (we could
certainly make the "is_binary()" heuristics also take standard filename
heuristics into account).
I don't pass in the filename at all for the "index_fd()" case
(git-update-index), so that would need to be passed around, but this
actually works fine.
NOTE NOTE NOTE! The "is_binary()" heuristics are totally made-up by yours
truly. I will not guarantee that they work at all reasonable. Caveat
emptor. But it _is_ simple, and it _is_ safe, since it's all off by
default.
The patch is pretty simple - the biggest part is the new "convert.c" file,
but even that is really just basic stuff that anybody can write in
"Teaching C 101" as a final project for their first class in programming.
Not to say that it's bug-free, of course - but at least we're not talking
about rocket surgery here.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
`git diff --ignore-space-at-eol` will ignore whitespace at the
line ends.
Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Here's a patch that I think we can merge right now. There may be
other places that need this, but this at least points out the
three places that read/write working tree files for git
update-index, checkout and diff respectively. That should cover
a lot of it [jc: git-apply uses an entirely different codepath
both for reading and writing].
Some day we can actually implement it. In the meantime, this
points out a place for people to start. We *can* even start with
a really simple "we do CRLF conversion automatically, regardless
of filename" kind of approach, that just look at the data (all
three cases have the _full_ file data already in memory) and
says "ok, this is text, so let's convert to/from DOS format
directly".
THAT somebody can write in ten minutes, and it would already
make git much nicer on a DOS/Windows platform, I suspect.
And it would be totally zero-cost if you just make it a config
option (but please make it dynamic with the _default_ just being
0/1 depending on whether it's UNIX/Windows, just so that UNIX
people can _test_ it easily).
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Quote both file names separately when printing a rename, yielding
something like
"foo" => "bar"
instead of the current
"foo => bar"
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This avoids some code duplication, and yields more readable results
for directory renames.
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Among the low-level output functions called from flush_one_pair(),
this was the only function that did not take (filepair, options)
as arguments.
Signed-off-by: Junio C Hamano <junkio@cox.net>
We have a number of badly checked write() calls. Often we are
expecting write() to write exactly the size we requested or fail,
this fails to handle interrupts or short writes. Switch to using
the new write_in_full(). Otherwise we at a minimum need to check
for EINTR and EAGAIN, where this is appropriate use xwrite().
Note, the changes to config handling are much larger and handled
in the next patch in the sequence.
Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
* sp/mmap: (27 commits)
Spell default packedgitlimit slightly differently
Increase packedGit{Limit,WindowSize} on 64 bit systems.
Update packedGit config option documentation.
mmap: set FD_CLOEXEC for file descriptors we keep open for mmap()
pack-objects: fix use of use_pack().
Fix random segfaults in pack-objects.
Cleanup read_cache_from error handling.
Replace mmap with xmmap, better handling MAP_FAILED.
Release pack windows before reporting out of memory.
Default core.packdGitWindowSize to 1 MiB if NO_MMAP.
Test suite for sliding window mmap implementation.
Create pack_report() as a debugging aid.
Support unmapping windows on 'temporary' packfiles.
Improve error message when packfile mmap fails.
Ensure core.packedGitWindowSize cannot be less than 2 pages.
Load core configuration in git-verify-pack.
Fully activate the sliding window pack access.
Unmap individual windows rather than entire files.
Document why header parsing won't exceed a window.
Loop over pack_windows when inflating/accessing data.
...
Conflicts:
cache.h
pack-check.c
This updates the way diffcore represents an unmerged pair
somewhat. It used to be that entries with mode=0 on both sides
were used to represent an unmerged pair, but now it has an
explicit flag. This is to allow diff-index --cached to report
the entry from the tree when the path is unmerged in the index.
This is used in updating "git reset <tree> -- <path>" to restore
absense of the path in the index from the tree.
Signed-off-by: Junio C Hamano <junkio@cox.net>
In some cases we did not even bother to check the return value of
mmap() and just assume it worked. This is bad, because if we are
out of virtual address space the kernel returned MAP_FAILED and we
would attempt to dereference that address, segfaulting without any
real error output to the user.
We are replacing all calls to mmap() with xmmap() and moving all
MAP_FAILED checking into that single location. If a mmap call
fails we try to release enough least-recently-used pack windows
to possibly succeed, then retry the mmap() attempt. If we cannot
mmap even after releasing pack memory then we die() as none of our
callers have any reasonable recovery strategy for a failed mmap.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
When parsing the diff line starting with '@@', the line number of the
'+' file is parsed. For the subsequent line parses, the line number
should therefore be incremented after the parse, not before it.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This is a mechanical clean-up of the way *.c files include
system header files.
(1) sources under compat/, platform sha-1 implementations, and
xdelta code are exempt from the following rules;
(2) the first #include must be "git-compat-util.h" or one of
our own header file that includes it first (e.g. config.h,
builtin.h, pkt-line.h);
(3) system headers that are included in "git-compat-util.h"
need not be included in individual C source files.
(4) "git-compat-util.h" does not have to include subsystem
specific header files (e.g. expat.h).
Signed-off-by: Junio C Hamano <junkio@cox.net>
It is nicer to let the user know when a commit succeeded all the time,
not only the first time. Also the commit sha1 is much more useful than
the tree sha1 in this case.
This patch also introduces a -q switch to supress this message as well
as the summary of created/deleted files.
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
The Cygwin folks have done a fine job at creating a POSIX layer
on Windows That Just Works(tm). However it comes with a penalty;
accessing files in the working tree by way of stat/open/mmap can
be slower for diffcore than inflating the data from a blob which
is stored in a packfile.
This performance problem is especially an issue in merge-recursive
when dealing with nearly 7000 added files, as we are loading
each file's content from the working directory to perform rename
detection. I have literally seen (and sadly watched) paint dry in
less time than it takes for merge-recursive to finish such a merge.
On the other hand this very same merge runs very fast on Solaris.
If Git is compiled with NO_FAST_WORKING_DIRECTORY set then we will
avoid looking at the working directory when the blob in question
is available within a packfile and the caller doesn't need the data
unpacked into a temporary file.
We don't use loose objects as they have the same open/mmap/close
costs as the working directory file access, but have the additional
CPU overhead of needing to inflate the content before use. So it
is still faster to use the working tree file over the loose object.
If the caller needs the file data unpacked into a temporary file
its likely because they are going to call an external diff program,
passing the file as a parameter. In this case reusing the working
tree file will be faster as we don't need to inflate the data and
write it out to a temporary file.
The NO_FAST_WORKING_DIRECTORY feature is enabled by default on
Cygwin, as that is the platform which currently appears to benefit
the most from this option.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
While adding colour to the branch command it was pointed out that a
config option like "branch.color" conflicts with the pre-existing
"branch.something" namespace used for specifying default merge urls and
branches. The suggested solution was to flip the order of the
components to "color.branch", which I did for colourising branch.
This patch does the same thing for
- git-log (color.diff)
- git-status (color.status)
- git-diff (color.diff)
- pager (color.pager)
I haven't removed the old config options; but they should probably be
deprecated and eventually removed to prevent future namespace
collisions. I've done this deprecation by changing the documentation
for the config file to match the new names; and adding the "color.XXX"
options to contrib/completion/git-completion.bash.
Unfortunately git-svn reads "diff.color" and "pager.color"; which I
don't like to change unilaterally.
Signed-off-by: Andy Parkins <andyparkins@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This changes the --numstat output for binary files from "0 0" to
"- -" to match what "apply --numstat" does.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Somebody was wondering on #git channel why a git generated diff
does not apply with GNU patch when the filename contains a SP.
It is because GNU patch expects to find TAB (and trailing timestamp)
on ---/+++ (old_name and new_name) lines after the filenames.
The "diff --git" output format was carefully designed to be
compatible with GNU patch where it can, but whitespace
characters were always a pain.
This adds an extra TAB (but not trailing timestamp) to old_name
and new_name lines of git-diff output when the filename has a SP
in it. An earlier patch updated git-apply to prepare for this.
Signed-off-by: Junio C Hamano <junkio@cox.net>
This makes "git log/diff --summary" imply recursive behaviour,
whose effect is summarized in one test output:
--- a/t/t4013/diff.diff-tree_--pretty_--root_--summary_initial
+++ b/t/t4013/diff.diff-tree_--pretty_--root_--summary_initial
@@ -5,7 +5,7 @@ Date: Mon Jun 26 00:00:00 2006 +0000
Initial
- create mode 040000 dir
+ create mode 100644 dir/sub
create mode 100644 file0
create mode 100644 file2
$
When a file is created in a subdirectory, we used to say just
the directory name only when that directory also was created,
which did not make sense from two reasons. It is not any more
significant to create a new file in a new directory than to
create a new file in an existing directory, and even if it were,
reportinging the new directory name without saying the actual
filename is not useful.
Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
* jc/diff-stat:
diff --stat: ensure at least one '-' for deletions, and one '+' for additions
diff --stat=width[,name-width]: allow custom diffstat output width.
diff --stat: color output.
diff --stat: allow custom diffstat output width.
Geert noticed that complete rewrite diff missed the usual a/ and b/
leading paths. Pickaxe says it never worked, ever.
Embarrassing.
Signed-off-by: Junio C Hamano <junkio@cox.net>
The number of '-' and '+' is still linear. The idea is that
scaled-length := floor(a * length + b) with the following constraints: if
length == 1, scaled-length == 1, and the combined length of plusses
and minusses should not be larger than the width by a small margin. Thus,
a + b == 1
and
a * max_plusses + b + a * max_minusses + b = width + 1
The solution is
a * x + b = ((width - 1) * (x - 1) + max_change - 1)
/ (max_change - 1)
Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Under --color option, diffstat shows '+' and '-' in the graph
the same color as added and deleted lines.
Signed-off-by: Junio C Hamano <junkio@cox.net>
This adds two parameters to "diff --stat".
. --stat-width=72 tells that the page should fit on 72-column output.
. --stat-name-width=30 tells that the filename part is limited
to 30 columns.
Signed-off-by: Junio C Hamano <junkio@cox.net>
This adds DIFF_WHITESPACE color class (default = reverse red) to
colored diff output to let you catch common whitespace errors.
- trailing whitespaces at the end of line
- a space followed by a tab in the indent
Signed-off-by: Junio C Hamano <junkio@cox.net>
* jk/diff:
wt-status: remove extraneous newline from 'deleted:' output
git-status: document colorization config options
Teach runstatus about --untracked
git-commit.sh: convert run_status to a C builtin
Move color option parsing out of diff.c and into color.[ch]
diff: support custom callbacks for output
Users can request the DIFF_FORMAT_CALLBACK output format to get a callback
consisting of the whole diff_queue_struct.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Like xmalloc and xrealloc xstrdup dies with a useful message if
the native strdup() implementation returns NULL rather than a
valid pointer.
I just tried to use xstrdup in new code and found it to be missing.
However I expected it to be present as xmalloc and xrealloc are
already commonly used throughout the code.
[jc: removed the part that deals with last_XXX, which I am
finding more and more dubious these days.]
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This abstracts away the size of the hash values when copying them
from memory location to memory location, much as the introduction
of hashcmp abstracted away hash value comparsion.
A few call sites were using char* rather than unsigned char* so
I added the cast rather than open hashcpy to be void*. This is a
reasonable tradeoff as most call sites already use unsigned char*
and the existing hashcmp is also declared to be unsigned char*.
[jc: Splitted the patch to "master" part, to be followed by a
patch for merge-recursive.c which is not in "master" yet.
Fixed the cast in the latter hunk to combine-diff.c which was
wrong in the original.
Also converted ones left-over in combine-diff.c, diff-lib.c and
upload-pack.c ]
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Introduces global inline:
hashcmp(const unsigned char *sha1, const unsigned char *sha2)
Uses memcmp for comparison and returns the result based on the length of
the hash name (a future runtime decision).
Acked-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
[jc: I needed to hand merge the changes to the updated codebase,
so the result needs to be checked.]
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Replace sha1 comparisons to null_sha1 with a global inline (which previously an
unused static inline in builtin-apply.c)
[jc: with a fix from Jonas Fonseca.]
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
With this option, the changed words are shown inline. For example,
if a file containing "This is foo" is changed to "This is bar", the diff
will now show "This is " in plain text, "foo" in red, and "bar" in green.
Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
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>
* ew/diff:
templates/hooks--update: replace diffstat calls with git diff --stat
diff: do not use configuration magic at the core-level
Update diff-options and config documentation.
diff.c: --no-color to defeat diff.color configuration.
diff.c: respect diff.renames config option
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>
* th/diff:
builtin-diff: turn recursive on when defaulting to --patch format.
t4013: note improvements brought by the new output code.
t4013: add format-patch tests.
format-patch: fix diff format option implementation
combine-diff.c: type sanity.
t4013 test updates for new output code.
Fix some more diff options changes.
Fix diff-tree -s
log --raw: Don't descend into subdirectories by default
diff-tree: Use ---\n as a message separator
Print empty line between raw, stat, summary and patch
t4013: add more tests around -c and --cc
whatchanged: Default to DIFF_FORMAT_RAW
Don't xcalloc() struct diffstat_t
Add msg_sep to diff_options
DIFF_FORMAT_RAW is not default anymore
Set default diff output format after parsing command line
Make --raw option available for all diff commands
Merge with_raw, with_stat and summary variables to output_format
t4013: add tests for diff/log family output options.
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>
This makes "git format-patch" a built-in.
* js/fmt-patch:
git-rebase: use canonical A..B syntax to format-patch
git-format-patch: now built-in.
fmt-patch: Support --attach
fmt-patch: understand old <his> notation
Teach fmt-patch about --keep-subject
Teach fmt-patch about --numbered
fmt-patch: implement -o <dir>
fmt-patch: output file names to stdout
Teach fmt-patch to write individual files.
Use RFC2822 dates from "git fmt-patch".
git-fmt-patch: thinkofix to show [PATCH] properly.
rename internal format-patch wip
Minor tweak on subject line in --pretty=email
Tentative built-in format-patch.
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>
