Commit Graph

237 Commits

Author SHA1 Message Date
Alexandre Julliard
e5bfbf9b3e diff.c: More logical file name quoting for renames in diffstat.
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>
2007-02-11 13:08:10 -08:00
Alexandre Julliard
0d26a64ece diff.c: Properly quote file names in diff --summary output.
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-02-11 12:53:05 -08:00
Alexandre Julliard
b9f441646c diff.c: Reuse the pprint_rename function for diff --summary output.
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>
2007-02-11 12:47:22 -08:00
Junio C Hamano
471efb09aa diff_flush_name(): take struct diff_options parameter.
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>
2007-02-09 22:43:02 -08:00
Andy Whitcroft
93822c2239 short i/o: fix calls to write to use xwrite or write_in_full
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>
2007-01-08 15:44:47 -08:00
Junio C Hamano
cf2999eb4c Merge branch 'sp/mmap'
* 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
2007-01-07 00:12:47 -08:00
Junio C Hamano
e9c8409900 diff-index --cached --raw: show tree entry on the LHS for unmerged entries.
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>
2007-01-06 22:57:42 -08:00
Shawn O. Pearce
c4712e4553 Replace mmap with xmmap, better handling MAP_FAILED.
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>
2006-12-29 11:36:45 -08:00
Junio C Hamano
27e4dd8de7 Merge branch 'maint'
* maint:
  diff --check: fix off by one error
  spurious .sp in manpages
2006-12-21 22:56:04 -08:00
Johannes Schindelin
e6d40d65df diff --check: fix off by one error
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>
2006-12-21 20:31:14 -08:00
Junio C Hamano
85023577a8 simplify inclusion of system header files.
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>
2006-12-20 09:51:35 -08:00
Junio C Hamano
5caf923223 fix populate-filespec
I hand munged the original patch when committing 1510fea78, and
screwed up the conversion.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-12-19 21:33:24 -08:00
Nicolas Pitre
ebd124c678 make commit message a little more consistent and conforting
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>
2006-12-15 22:29:54 -08:00
Shawn O. Pearce
1510fea781 Avoid accessing a slow working copy during diffcore operations.
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>
2006-12-15 22:11:19 -08:00
Junio C Hamano
f5c589f1df Merge branch 'jc/numstat'
* jc/numstat:
  diff --numstat: show binary with '-' to match "apply --numstat"
2006-12-13 11:00:32 -08:00
Andy Parkins
a159ca0cb7 Allow subcommand.color and color.subcommand color configuration
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>
2006-12-13 01:47:36 -08:00
Junio C Hamano
bfddbc5e1e diff --numstat: show binary with '-' to match "apply --numstat"
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>
2006-12-11 14:17:19 -08:00
Junio C Hamano
65606f3530 Merge branch 'js/diff'
* js/diff:
  Turn on recursive with --summary
2006-10-18 22:09:03 -07:00
Junio C Hamano
74e2abe5b7 diff --numstat
[jc: with documentation from Jakub]

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-10-13 21:37:10 -07:00
Johannes Schindelin
d7014dc081 Turn on recursive with --summary
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>
2006-10-05 15:10:40 -07:00
Junio C Hamano
dd0c367e5e Merge branch 'jc/diff-stat'
* 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.
2006-09-30 21:29:18 -07:00
Junio C Hamano
bc1a580757 git-diff -B output fix.
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>
2006-09-29 02:06:24 -07:00
Johannes Schindelin
3ed74e608a diff --stat: ensure at least one '-' for deletions, and one '+' for additions
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>
2006-09-28 22:32:53 -07:00
Linus Torvalds
5c5b2ea9ab diff --stat=width[,name-width]: allow custom diffstat output width.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-09-28 22:27:29 -07:00
Junio C Hamano
785f743276 diff --stat: color output.
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>
2006-09-27 02:57:37 -07:00
Junio C Hamano
a2540023dc diff --stat: allow custom diffstat output width.
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>
2006-09-27 02:55:08 -07:00
Junio C Hamano
448c3ef144 diff.c: second war on whitespace.
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>
2006-09-24 00:12:44 -07:00
Junio C Hamano
b467fb0b90 Merge branch 'jk/diff'
* 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
2006-09-17 18:14:03 -07:00
Jeff King
7c92fe0eaa Move color option parsing out of diff.c and into color.[ch]
The intent is to lib-ify colorizing code so it can be reused.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-09-08 16:44:10 -07:00
Jeff King
0424558190 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>
2006-09-07 15:40:25 -07:00
Junio C Hamano
82793c55e4 diff --binary generates full index on binary files.
... without --full-index.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-09-07 02:44:41 -07:00
Shawn Pearce
9befac470b Replace uses of strdup with xstrdup.
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>
2006-09-02 03:24:37 -07:00
Junio C Hamano
b32d37a3a6 Merge branch 'jc/apply'
* jc/apply:
  git-apply --reject: finishing touches.
  apply --reject: count hunks starting from 1, not 0
  git-apply --verbose
  git-apply --reject: send rejects to .rej files.
  git-apply --reject
  apply --reverse: tie it all together.
  diff.c: make binary patch reversible.
  builtin-apply --reverse: two bugfixes.
2006-08-27 17:51:05 -07:00
Shawn Pearce
e702496e43 Convert memcpy(a,b,20) to hashcpy(a,b).
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>
2006-08-23 13:53:10 -07:00
David Rientjes
a89fccd281 Do not use memcmp(sha1_1, sha1_2, 20) with hardcoded length.
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>
2006-08-17 14:23:53 -07:00
Junio C Hamano
d4c452f03b diff.c: make binary patch reversible.
This matches the format previous "git-apply --reverse" update
expects.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-16 21:08:45 -07:00
David Rientjes
96f1e58f52 remove unnecessary initializations
[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>
2006-08-15 21:22:20 -07:00
David Rientjes
0bef57ee44 make inline is_null_sha1 global
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>
2006-08-15 15:06:03 -07:00
David Rientjes
8c0b2bb636 diff.c cleanup
Removes conditional return.

Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-14 18:38:07 -07:00
Junio C Hamano
f3c5b39567 Merge branch 'th/diff-extra' 2006-08-12 19:34:41 -07:00
Johannes Schindelin
f59a59e22f Add the --color-words option to the diff options family
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>
2006-08-10 15:28:57 -07:00
Junio C Hamano
943d5b73e2 allow diff.renamelimit to be set regardless of -M/-C
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-09 14:05:23 -07:00
Junio C Hamano
03b9d560be make --find-copies-harder imply -C
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-09 13:17:19 -07:00
Junio C Hamano
ef677686ef diff.c: do not use pathname comparison to tell renames
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>
2006-08-03 14:41:53 -07:00
Matthias Lederhofer
aa086eb813 pager: config variable pager.color
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>
2006-07-31 15:32:24 -07:00
Jeff King
ce43697379 Colorize 'commit' lines in log ui
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>
2006-07-24 00:04:41 -07:00
Timo Hirvonen
f5b571fcf7 diff: Support 256 colors
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>
2006-07-13 21:53:25 -07:00
Timo Hirvonen
f37399e6b0 diff: Support both attributes and colors
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>
2006-07-13 21:53:23 -07:00
Shawn Pearce
344c52aee5 Avoid C99 initializers
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>
2006-07-10 00:13:28 -07:00
Junio C Hamano
fc93dbbfc9 Merge branch 'ew/diff'
* 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
2006-07-09 23:47:39 -07:00