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136 commits

Author SHA1 Message Date
Leila Muhtasib 8d8136c37a Documentation: Fix misspellings
Signed-off-by: Leila Muhtasib <muhtasib@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-06-22 14:25:04 -07:00
Jeff King 6cf378f0cb docs: stop using asciidoc no-inline-literal
In asciidoc 7, backticks like `foo` produced a typographic
effect, but did not otherwise affect the syntax. In asciidoc
8, backticks introduce an "inline literal" inside which markup
is not interpreted. To keep compatibility with existing
documents, asciidoc 8 has a "no-inline-literal" attribute to
keep the old behavior. We enabled this so that the
documentation could be built on either version.

It has been several years now, and asciidoc 7 is no longer
in wide use. We can now decide whether or not we want
inline literals on their own merits, which are:

  1. The source is much easier to read when the literal
     contains punctuation. You can use `master~1` instead
     of `master{tilde}1`.

  2. They are less error-prone. Because of point (1), we
     tend to make mistakes and forget the extra layer of
     quoting.

This patch removes the no-inline-literal attribute from the
Makefile and converts every use of backticks in the
documentation to an inline literal (they must be cleaned up,
or the example above would literally show "{tilde}" in the
output).

Problematic sites were found by grepping for '`.*[{\\]' and
examined and fixed manually. The results were then verified
by comparing the output of "html2text" on the set of
generated html pages. Doing so revealed that in addition to
making the source more readable, this patch fixes several
formatting bugs:

  - HTML rendering used the ellipsis character instead of
    literal "..." in code examples (like "git log A...B")

  - some code examples used the right-arrow character
    instead of '->' because they failed to quote

  - api-config.txt did not quote tilde, and the resulting
    HTML contained a bogus snippet like:

      <tt><sub></tt> foo <tt></sub>bar</tt>

    which caused some parsers to choke and omit whole
    sections of the page.

  - git-commit.txt confused ``foo`` (backticks inside a
    literal) with ``foo'' (matched double-quotes)

  - mentions of `A U Thor <author@example.com>` used to
    erroneously auto-generate a mailto footnote for
    author@example.com

  - the description of --word-diff=plain incorrectly showed
    the output as "[-removed-] and {added}", not "{+added+}".

  - using "prime" notation like:

      commit `C` and its replacement `C'`

    confused asciidoc into thinking that everything between
    the first backtick and the final apostrophe were meant
    to be inside matched quotes

  - asciidoc got confused by the escaping of some of our
    asterisks. In particular,

      `credential.\*` and `credential.<url>.\*`

    properly escaped the asterisk in the first case, but
    literally passed through the backslash in the second
    case.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-26 13:19:06 -07:00
Junio C Hamano c58499c317 Merge branch 'th/doc-diff-submodule-option'
* th/doc-diff-submodule-option:
  Documentation/diff-options: reword description of --submodule option
2012-03-15 21:54:31 -07:00
Tim Henigan 3fe271e91b Documentation/diff-options: reword description of --submodule option
The previous description was confusing.  This rewrite makes it easier
to understand.

Signed-off-by: Tim Henigan <tim.henigan@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-03-14 12:15:46 -07:00
Junio C Hamano af050219e4 Merge branch 'zj/diff-stat-dyncol'
By Zbigniew Jędrzejewski-Szmek (8) and Junio C Hamano (1)
* zj/diff-stat-dyncol:
  : This breaks tests. Perhaps it is not worth using the decimal-width stuff
  : for this series, at least initially.
  diff --stat: add config option to limit graph width
  diff --stat: enable limiting of the graph part
  diff --stat: add a test for output with COLUMNS=40
  diff --stat: use a maximum of 5/8 for the filename part
  merge --stat: use the full terminal width
  log --stat: use the full terminal width
  show --stat: use the full terminal width
  diff --stat: use the full terminal width
  diff --stat: tests for long filenames and big change counts
2012-03-06 14:53:06 -08:00
Junio C Hamano e521850bfd Merge branch 'maint-1.7.7' into maint-1.7.8
By Thomas Rast
* maint-1.7.7:
  Document the --histogram diff option
2012-03-06 12:04:48 -08:00
Thomas Rast d909e0761c Document the --histogram diff option
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-03-06 11:53:29 -08:00
Zbigniew Jędrzejewski-Szmek df44483a5d diff --stat: add config option to limit graph width
Config option diff.statGraphWidth=<width> is equivalent to
--stat-graph-width=<width>, except that the config option is ignored
by format-patch.

For the graph-width limiting to be usable, it should happen
'automatically' once configured, hence the config option.
Nevertheless, graph width limiting only makes sense when used on a
wide terminal, so it should not influence the output of format-patch,
which adheres to the 80-column standard.

Signed-off-by: Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-03-01 09:15:58 -08:00
Zbigniew Jędrzejewski-Szmek 969fe57b84 diff --stat: enable limiting of the graph part
A new option --stat-graph-width=<width> can be used to limit the width
of the graph part even is more space is available. Up to <width>
columns will be used for the graph.

If commits changing a lot of lines are displayed in a wide terminal
window (200 or more columns), and the +- graph uses the full width,
the output can be hard to comfortably scan with a horizontal movement
of human eyes. Messages wrapped to about 80 columns would be
interspersed with very long +- lines. It makes sense to limit the
width of the graph part to a fixed value (e.g. 70 columns), even if
more columns are available.

Signed-off-by: Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-03-01 09:15:47 -08:00
Zbigniew Jędrzejewski-Szmek 1b058bc30d diff --stat: use a maximum of 5/8 for the filename part
The way that available columns are divided between the filename part
and the graph part is modified to use as many columns as necessary for
the filenames and the rest for the graph.

If there isn't enough columns to print both the filename and the
graph, at least 5/8 of available space is devoted to filenames. On a
standard 80 column terminal, or if not connected to a terminal and
using the default of 80 columns, this gives the same partition as
before.

The effect of this change is visible in the patch to the test vector
in t4052; with a small change with long filename, it stops truncating
the name part too short, and also allocates a bit more columns to the
graph for larger changes.

Signed-off-by: Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-03-01 09:14:58 -08:00
Junio C Hamano 14ba45a2e6 Sync with 1.7.7.3
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-08 16:38:14 -08:00
Jeff King 939ca96b0e docs: don't mention --quiet or --exit-code in git-log(1)
These are diff-options, but they don't actually make sense
in the context of log.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-08 13:37:02 -08:00
Junio C Hamano 9b55aa03da Merge branch 'rs/diff-whole-function'
* rs/diff-whole-function:
  diff: add option to show whole functions as context
  xdiff: factor out get_func_line()
2011-10-19 10:49:13 -07:00
René Scharfe 14937c2c06 diff: add option to show whole functions as context
Add the option -W/--function-context to git diff.  It is similar to
the same option of git grep and expands the context of change hunks
so that the whole surrounding function is shown.  This "natural"
context can allow changes to be understood better.

Note: GNU patch doesn't like diffs generated with the new option;
it seems to expect context lines to be the same before and after
changes.  git apply doesn't complain.

This implementation has the same shortcoming as the one in grep,
namely that there is no way to explicitly find the end of a
function.  That means that a few lines of extra context are shown,
right up to the next recognized function begins.  It's already
useful in its current form, though.

The function get_func_line() in xdiff/xemit.c is extended to work
forward as well as backward to find post-context as well as
pre-context.  It returns the position of the first found matching
line.  The func_line parameter is made optional, as we don't need
it for -W.

The enhanced function is then used in xdl_emit_diff() to extend
the context as needed.  If the added context overlaps with the
next change, it is merged into the current hunk.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-10 12:05:07 -07:00
Junio C Hamano 81b568c839 diff: resurrect XDF_NEED_MINIMAL with --minimal
Earlier, 582aa00 (git diff too slow for a file, 2010-05-02)
unconditionally dropped XDF_NEED_MINIMAL option from the internal xdiff
invocation to help performance on pathological cases, while hinting that a
follow-up patch could reintroduce it with "--minimal" option from the
command line.

Make it so.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-03 11:58:18 -07:00
Junio C Hamano 395f65d438 Merge branch 'maint'
* maint:
  docs: document --textconv diff option
2011-07-06 16:48:59 -07:00
Jeff King d28790dc31 docs: document --textconv diff option
This has been there since textconv existed, but was never
documented. There is some overlap with what's in
gitattributes(5), but it's important to warn in both places
that textconv diffs probably can't be applied.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-07-06 11:10:11 -07:00
Junio C Hamano a852aac48d Merge branch 'mg/diff-stat-count'
* mg/diff-stat-count:
  diff --stat-count: finishing touches
  diff-options.txt: describe --stat-{width,name-width,count}
  diff: introduce --stat-lines to limit the stat lines
  diff.c: omit hidden entries from namelen calculation with --stat
2011-06-29 17:03:10 -07:00
Junio C Hamano def98035d0 Merge branch 'maint'
* maint:
  Documentation: git diff --check respects core.whitespace
2011-06-22 14:01:18 -07:00
Christof Krüger 4f8303905e Documentation: git diff --check respects core.whitespace
Fix documentation on "git diff --check" by adopting the description from
"git apply --whitespace".

Signed-off-by: Christof Krüger <git@christof-krueger.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-06-22 11:40:32 -07:00
Michael J Gruber 86e1ce96d7 diff-options.txt: describe --stat-{width,name-width,count}
Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-27 10:44:37 -07:00
Michael J Gruber 808e1db231 diff: introduce --stat-lines to limit the stat lines
Often one is interested in the full --stat output only for commits which
change a few files, but not others, because larger restructuring gives a
--stat which fills a few screens.

Introduce a new option --stat-count=<count> which limits the --stat output
to the first <count> lines, followed by a "..." line. It can
also be given as the third parameter in
--stat=<width>,<name-width>,<count>.

Also, the unstuck form is supported analogous to the other two stat
parameters.

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-27 10:44:34 -07:00
Junio C Hamano 5f8937db39 Merge branch 'mg/diff-uiconfig-doc' into maint
* mg/diff-uiconfig-doc:
  config.txt,diff-options.txt: porcelain vs. plumbing for color.diff
2011-05-26 09:41:11 -07:00
Junio C Hamano df54e2bfd6 Merge branch 'jh/dirstat-lines'
* jh/dirstat-lines:
  Mark dirstat error messages for translation
  Improve error handling when parsing dirstat parameters
  New --dirstat=lines mode, doing dirstat analysis based on diffstat
  Allow specifying --dirstat cut-off percentage as a floating point number
  Add config variable for specifying default --dirstat behavior
  Refactor --dirstat parsing; deprecate --cumulative and --dirstat-by-file
  Make --dirstat=0 output directories that contribute < 0.1% of changes
  Add several testcases for --dirstat and friends
2011-05-13 11:01:32 -07:00
Junio C Hamano 12b99a3598 Merge branch 'mg/diff-uiconfig-doc'
* mg/diff-uiconfig-doc:
  config.txt,diff-options.txt: porcelain vs. plumbing for color.diff
2011-05-06 10:49:53 -07:00
Junio C Hamano ef6b43a44b Merge branch 'maint'
* maint:
  Remove duplicated "is a"
2011-05-06 10:44:23 -07:00
João Britto 4c007ae835 Remove duplicated "is a"
Signed-off-by: João Britto <jabcalves@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-05 22:14:15 -07:00
Johan Herland 1c57a627bf New --dirstat=lines mode, doing dirstat analysis based on diffstat
This patch adds an alternative implementation of show_dirstat(), called
show_dirstat_by_line(), which uses the more expensive diffstat analysis
(as opposed to show_dirstat()'s own (relatively inexpensive) analysis)
to derive the numbers from which the --dirstat output is computed.

The alternative implementation is controlled by the new "lines" parameter
to the --dirstat option (or the diff.dirstat config variable).

For binary files, the diffstat analysis counts bytes instead of lines,
so to prevent binary files from dominating the dirstat results, the
byte counts for binary files are divided by 64 before being compared to
their textual/line-based counterparts. This is a stupid and ugly - but
very cheap - heuristic.

In linux-2.6.git, running the three different --dirstat modes:

  time git diff v2.6.20..v2.6.30 --dirstat=changes > /dev/null
vs.
  time git diff v2.6.20..v2.6.30 --dirstat=lines > /dev/null
vs.
  time git diff v2.6.20..v2.6.30 --dirstat=files > /dev/null

yields the following average runtimes on my machine:

 - "changes" (default): ~6.0 s
 - "lines":             ~9.6 s
 - "files":             ~0.1 s

So, as expected, there's a considerable performance hit (~60%) by going
through the full diffstat analysis as compared to the default "changes"
analysis (obviously, "files" is much faster than both). As such, the
"lines" mode is probably only useful if you really need the --dirstat
numbers to be consistent with the numbers returned from the other
--*stat options.

The patch also includes documentation and tests for the new dirstat mode.

Improved-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-04-29 11:22:55 -07:00
Johan Herland 2d17495196 Add config variable for specifying default --dirstat behavior
The new diff.dirstat config variable takes the same arguments as
'--dirstat=<args>', and specifies the default arguments for --dirstat.
The config is obviously overridden by --dirstat arguments passed on the
command line.

When not specified, the --dirstat defaults are 'changes,noncumulative,3'.

The patch also adds several tests verifying the interaction between the
diff.dirstat config variable, and the --dirstat command line option.

Improved-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-04-29 11:20:03 -07:00
Johan Herland 333f3fb0c5 Refactor --dirstat parsing; deprecate --cumulative and --dirstat-by-file
Instead of having multiple interconnected dirstat-related options, teach
the --dirstat option itself to accept all behavior modifiers as parameters.

 - Preserve the current --dirstat=<limit> (where <limit> is an integer
   specifying a cut-off percentage)
 - Add --dirstat=cumulative, replacing --cumulative
 - Add --dirstat=files, replacing --dirstat-by-file
 - Also add --dirstat=changes and --dirstat=noncumulative for specifying the
   current default behavior. These allow the user to reset other --dirstat
   parameters (e.g. 'cumulative' and 'files') occuring earlier on the
   command line.

The deprecated options (--cumulative and --dirstat-by-file) are still
functional, although they have been removed from the documentation.

Allow multiple parameters to be separated by commas, e.g.:
  --dirstat=files,10,cumulative

Update the documentation accordingly, and add testcases verifying the
behavior of the new syntax.

Improved-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-04-29 11:17:36 -07:00
Junio C Hamano 50d3062ab2 Merge branch 'jc/diff-irreversible-delete'
* jc/diff-irreversible-delete:
  git diff -D: omit the preimage of deletes
2011-04-28 14:11:47 -07:00
Michael J Gruber 6999c54029 config.txt,diff-options.txt: porcelain vs. plumbing for color.diff
Reading the diff-family and config man pages one may think that the
color.diff and color.ui settings apply to all diff commands. Make it
clearer that they do not apply to the plumbing variants
diff-{files,index,tree}.

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-04-27 11:25:47 -07:00
Johan Herland 2ff3a80334 Teach --dirstat not to completely ignore rearranged lines within a file
Currently, the --dirstat analysis ignores when lines within a file are
rearranged, because the "damage" calculated by show_dirstat() is 0.
However, if the object name has changed, we already know that there is
some damage, and it is unintuitive to claim there is _no_ damage.

Teach show_dirstat() to assign a minimum amount of damage (== 1) to
entries for which the analysis otherwise yields zero damage, to still
represent that these files are changed, instead of saying that there
is no change.

Also, skip --dirstat analysis when the object names are the same (e.g. for
a pure file rename).

Signed-off-by: Johan Herland <johan@herland.net>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-04-11 11:16:15 -07:00
Johan Herland 204f01a2f7 --dirstat: Describe non-obvious differences relative to --stat or regular diff
Also add a testcase documenting the current behavior.

Improved-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Johan Herland <johan@herland.net>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-04-11 10:11:17 -07:00
Junio C Hamano 467ddc14fe git diff -D: omit the preimage of deletes
When reviewing a patch while concentrating primarily on the text after
then change, wading through pages of deleted text involves a cognitive
burden.

Introduce the -D option that omits the preimage text from the patch output
for deleted files.  When used with -B (represent total rewrite as a single
wholesale deletion followed by a single wholesale addition), the preimage
text is also omitted.

To prevent such a patch from being applied by mistake, the output is
designed not to be usable by "git apply" (or GNU "patch"); it is strictly
for human consumption.

It of course is possible to "apply" such a patch by hand, as a human can
read the intention out of such a patch.  It however is impossible to apply
such a patch even manually in reverse, as the whole point of this option
is to omit the information necessary to do so from the output.

Initial request by Mart Sõmermaa, documentation and tests helped by
Michael J Gruber.

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-04-02 23:52:20 -07:00
Yann Dirson f611ddc774 diff: use "find" instead of "detect" as prefix for long forms of -M and -C
It is more consistent with existing --find-copies-harder; luckily "detect"
variant has not appeared in any officially released version of git.

Signed-off-by: Yann Dirson <ydirson@altern.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-12-10 13:52:05 -08:00
Kevin Ballard 150a5daad0 diff: add --detect-copies-harder as a synonym for --find-copies-harder
Signed-off-by: Kevin Ballard <kevin@sb.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-11-29 16:58:27 -08:00
Junio C Hamano 5a7a0fae8f Merge branch 'maint'
* maint:
  clean: remove redundant variable baselen
  Documentation/git-pull: clarify configuration
  Document that rev-list --graph triggers parent rewriting.
  clean: avoid quoting twice
  document sigchain api
  Keep together options controlling the behaviour of diffcore-rename.
  t3402: test "rebase -s<strategy> -X<opt>"
2010-11-17 13:57:58 -08:00
Yann Dirson f1037448e2 Keep together options controlling the behaviour of diffcore-rename.
It makes little sense to have --diff-filter in the middle of them, and
even spares an ifndef::git-format-patch.

Signed-off-by: Yann Dirson <ydirson@altern.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-11-16 09:29:37 -08:00
Junio C Hamano 329351feeb Merge branch 'kb/merge-recursive-rename-threshold'
* kb/merge-recursive-rename-threshold:
  diff: add synonyms for -M, -C, -B
  merge-recursive: option to specify rename threshold

Conflicts:
	Documentation/diff-options.txt
	Documentation/merge-strategies.txt
2010-10-26 21:54:04 -07:00
Junio C Hamano d4c4369752 Sync with 1.7.3.2
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-10-21 17:16:10 -07:00
Štěpán Němec 01398df31c Fix odd markup in --diff-filter documentation
Instead of using the regex-like bracket expression, use grouping to make
it more consistent with other similar places. The brackets now have the
same meaning as in other documentation (i.e., the argument is optional).

Signed-off-by: Štěpán Němec <stepnem@gmail.com>
Mentored-and-Acked-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-10-08 12:30:52 -07:00
Štěpán Němec 62b4698e55 Use angles for placeholders consistently
Signed-off-by: Štěpán Němec <stepnem@gmail.com>
Acked-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-10-08 12:29:52 -07:00
Kevin Ballard 37ab5156ae diff: add synonyms for -M, -C, -B
Add new long-form options --detect-renames[=<n>], --detect-copies[=<n>],
and --break-rewrites[=[<n>][/<m>]] as synonyms for the -M, -C, and -B
options (respectively).

Signed-off-by: Kevin Ballard <kevin@sb.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-29 13:18:04 -07:00
Junio C Hamano f506b8e8b5 git log/diff: add -G<regexp> that greps in the patch text
Teach "-G<regexp>" that is similar to "-S<regexp> --pickaxe-regexp" to the
"git diff" family of commands.  This limits the diff queue to filepairs
whose patch text actually has an added or a deleted line that matches the
given regexp.  Unlike "-S<regexp>", changing other parts of the line that
has a substring that matches the given regexp IS counted as a change, as
such a change would appear as one deletion followed by one addition in a
patch text.

Unlike -S (pickaxe) that is intended to be used to quickly detect a commit
that changes the number of occurrences of hits between the preimage and
the postimage to serve as a part of larger toolchain, this is meant to be
used as the top-level Porcelain feature.

The implementation unfortunately has to run "diff" twice if you are
running "log" family of commands to produce patches in the final output
(e.g. "git log -p" or "git format-patch").  I think we _could_ cache the
result in-core if we wanted to, but that would require larger surgery to
the diffcore machinery (i.e. adding an extra pointer in the filepair
structure to keep a pointer to a strbuf around, stuff the textual diff to
the strbuf inside diffgrep_consume(), and make use of it in later stages
when it is available) and it may not be worth it.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-31 14:30:29 -07:00
Junio C Hamano cc34bb0b02 Merge branch 'jl/submodule-ignore-diff'
* jl/submodule-ignore-diff:
  Add tests for the diff.ignoreSubmodules config option
  Add the 'diff.ignoreSubmodules' config setting
  Submodules: Use "ignore" settings from .gitmodules too for diff and status
  Submodules: Add the new "ignore" config option for diff and status

Conflicts:
	diff.c
2010-08-18 12:36:25 -07:00
Matthieu Moy cf958afd83 Document -B<n>[/<m>], -M<n> and -C<n> variants of -B, -M and -C
These options take an optional argument, but this optional argument was
not documented.

Original patch by Matthieu Moy, but documentation for -B mostly copied
from the explanations of Junio C Hamano.

While we're there, fix a typo in a comment in diffcore.h.

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-09 09:16:11 -07:00
Jens Lehmann 302ad7a993 Submodules: Use "ignore" settings from .gitmodules too for diff and status
The .gitmodules file is parsed for "submodule.<name>.ignore" entries
before looking for them in .git/config. Thus settings found in .git/config
will override those from .gitmodules, thereby allowing the local developer
to ignore settings given by the remote side while also letting upstream
set defaults for those users who don't have special needs.

Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-09 09:11:44 -07:00
Jens Lehmann aee9c7d654 Submodules: Add the new "ignore" config option for diff and status
The new "ignore" config option controls the default behavior for "git
status" and the diff family. It specifies under what circumstances they
consider submodules as modified and can be set separately for each
submodule.

The command line option "--ignore-submodules=" has been extended to accept
the new parameter "none" for both status and diff.

Users that chose submodules to get rid of long work tree scanning times
might want to set the "dirty" option for those submodules. This brings
back the pre 1.7.0 behavior, where submodule work trees were never
scanned for modifications. By using "--ignore-submodules=none" on the
command line the status and diff commands can be told to do a full scan.

This option can be set to the following values (which have the same name
and meaning as for the "--ignore-submodules" option of status and diff):

"all": All changes to the submodule will be ignored.

"dirty": Only differences of the commit recorded in the superproject and
	the submodules HEAD will be considered modifications, all changes
	to the work tree of the submodule will be ignored. When using this
	value, the submodule will not be scanned for work tree changes at
	all, leading to a performance benefit on large submodules.

"untracked": Only untracked files in the submodules work tree are ignored,
	a changed HEAD and/or modified files in the submodule will mark it
	as modified.

"none" (which is the default): Either untracked or modified files in a
	submodules work tree or a difference between the subdmodules HEAD
	and the commit recorded in the superproject will make it show up
	as changed. This value is added as a new parameter for the
	"--ignore-submodules" option of the diff family and "git status"
	so the user can override the settings in the configuration.

Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-09 09:01:52 -07:00
Junio C Hamano e1165dd144 Merge branch 'jl/maint-diff-ignore-submodules'
* jl/maint-diff-ignore-submodules:
  t4027,4041: Use test -s to test for an empty file
  Add optional parameters to the diff option "--ignore-submodules"
  git diff: rename test that had a conflicting name
2010-06-30 11:55:37 -07:00