+// Please don't remove this comment as asciidoc behaves badly when
+// the first non-empty line is ifdef/ifndef. The symptom is that
+// without this comment the <git-diff-core> attribute conditionally
+// defined below ends up being defined unconditionally.
+// Last checked with asciidoc 7.0.2.
+
+ifndef::git-format-patch[]
+ifndef::git-diff[]
+ifndef::git-log[]
+:git-diff-core: 1
+endif::git-log[]
+endif::git-diff[]
+endif::git-format-patch[]
+
+ifdef::git-format-patch[]
-p::
- Generate patch (see section on generating patches)
+ Generate patches without diffstat.
+endif::git-format-patch[]
+
+ifndef::git-format-patch[]
+-p::
+ Generate patch (see section on generating patches).
+ {git-diff? This is the default.}
+endif::git-format-patch[]
-u::
Synonym for "-p".
+-U<n>::
+ Shorthand for "--unified=<n>".
+
+--unified=<n>::
+ Generate diffs with <n> lines of context instead of
+ the usual three. Implies "-p".
+
--raw::
Generate the raw format.
+ {git-diff-core? This is the default.}
--patch-with-raw::
Synonym for "-p --raw".
--numstat::
Similar to \--stat, but shows number of added and
deleted lines in decimal notation and pathname without
- abbreviation, to make it more machine friendly.
+ abbreviation, to make it more machine friendly. For
+ binary files, outputs two `-` instead of saying
+ `0 0`.
+
+--shortstat::
+ Output only the last line of the --stat format containing total
+ number of modified files, as well as number of added and deleted
+ lines.
+
+--dirstat[=limit]::
+ Output the distribution of relative amount of changes (number of lines added or
+ removed) for each sub-directory. Directories with changes below
+ a cut-off percent (3% by default) are not shown. The cut-off percent
+ can be set with "--dirstat=limit". Changes in a child directory is not
+ counted for the parent directory, unless "--cumulative" is used.
+
+--dirstat-by-file[=limit]::
+ Same as --dirstat, but counts changed files instead of lines.
--summary::
Output a condensed summary of extended header information
--patch-with-stat::
Synonym for "-p --stat".
+ {git-format-patch? This is the default.}
-z::
- \0 line termination on output
+ NUL-line termination on output. This affects the --raw
+ output field terminator. Also output from commands such
+ as "git-log" will be delimited with NUL between commits.
--name-only::
Show only names of changed files.
--name-status::
- Show only names and status of changed files.
+ Show only names and status of changed files. See the description
+ of the `--diff-filter` option on what the status letters mean.
--color::
Show colored diff.
Turn off rename detection, even when the configuration
file gives the default to do so.
+--check::
+ Warn if changes introduce trailing whitespace
+ or an indent that uses a space before a tab. Exits with
+ non-zero status if problems are found. Not compatible with
+ --exit-code.
+
--full-index::
- Instead of the first handful characters, show full
- object name of pre- and post-image blob on the "index"
- line when generating a patch format output.
+ Instead of the first handful of characters, show the full
+ pre- and post-image blob object names on the "index"
+ line when generating patch format output.
--binary::
In addition to --full-index, output "binary diff" that
Detect renames.
-C::
- Detect copies as well as renames.
+ Detect copies as well as renames. See also `--find-copies-harder`.
--diff-filter=[ACDMRTUXB*]::
Select only files that are Added (`A`), Copied (`C`),
Deleted (`D`), Modified (`M`), Renamed (`R`), have their
- type (mode) changed (`T`), are Unmerged (`U`), are
+ type (i.e. regular file, symlink, submodule, ...) changed (`T`),
+ are Unmerged (`U`), are
Unknown (`X`), or have had their pairing Broken (`B`).
Any combination of the filter characters may be used.
When `*` (All-or-none) is added to the combination, all
that matches other criteria, nothing is selected.
--find-copies-harder::
- For performance reasons, by default, -C option finds copies only
- if the original file of the copy was modified in the same
+ For performance reasons, by default, `-C` option finds copies only
+ if the original file of the copy was modified in the same
changeset. This flag makes the command
inspect unmodified files as candidates for the source of
copy. This is a very expensive operation for large
- projects, so use it with caution.
+ projects, so use it with caution. Giving more than one
+ `-C` option has the same effect.
-l<num>::
-M and -C options require O(n^2) processing time where n
Swap two inputs; that is, show differences from index or
on-disk file to tree contents.
+--relative[=<path>]::
+ When run from a subdirectory of the project, it can be
+ told to exclude changes outside the directory and show
+ pathnames relative to it with this option. When you are
+ not in a subdirectory (e.g. in a bare repository), you
+ can name which subdirectory to make the output relative
+ to by giving a <path> as an argument.
+
--text::
Treat all files as text.
-a::
Shorthand for "--text".
+--ignore-space-at-eol::
+ Ignore changes in whitespace at EOL.
+
--ignore-space-change::
- Ignore changes in amount of white space. This ignores white
- space at line end, and consider all other sequences of one or
- more white space characters to be equivalent.
+ Ignore changes in amount of whitespace. This ignores whitespace
+ at line end, and considers all other sequences of one or
+ more whitespace characters to be equivalent.
-b::
Shorthand for "--ignore-space-change".
--ignore-all-space::
- Ignore white space when comparing lines. This ignores
- difference even if one line has white space where the other
+ Ignore whitespace when comparing lines. This ignores
+ differences even if one line has whitespace where the other
line has none.
-w::
Shorthand for "--ignore-all-space".
+--exit-code::
+ Make the program exit with codes similar to diff(1).
+ That is, it exits with 1 if there were differences and
+ 0 means no differences.
+
+--quiet::
+ Disable all output of the program. Implies --exit-code.
+
+--ext-diff::
+ Allow an external diff helper to be executed. If you set an
+ external diff driver with linkgit:gitattributes[5], you need
+ to use this option with linkgit:git-log[1] and friends.
+
+--no-ext-diff::
+ Disallow external diff drivers.
+
+--ignore-submodules::
+ Ignore changes to submodules in the diff generation.
+
+--src-prefix=<prefix>::
+ Show the given source prefix instead of "a/".
+
+--dst-prefix=<prefix>::
+ Show the given destination prefix instead of "b/".
+
+--no-prefix::
+ Do not show any source or destination prefix.
+
For more detailed explanation on these common options, see also
-link:diffcore.html[diffcore documentation].
+linkgit:gitdiffcore[7].