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<div id="header">
<h1>
git-diff-index(1) Manual Page
</h1>
<h2>NAME</h2>
<div class="sectionbody">
<p>git-diff-index -
Compares content and mode of blobs between the index and repository
</p>
</div>
</div>
<h2 id="_synopsis">SYNOPSIS</h2>
<div class="sectionbody">
<div class="verseblock">
<div class="verseblock-content"><em>git diff-index</em> [-m] [--cached] [<common diff options>] <tree-ish> [<path>…]</div>
<div class="verseblock-attribution">
</div></div>
</div>
<h2 id="_description">DESCRIPTION</h2>
<div class="sectionbody">
<div class="paragraph"><p>Compares the content and mode of the blobs found via a tree
object with the content of the current index and, optionally
ignoring the stat state of the file on disk. When paths are
specified, compares only those named paths. Otherwise all
entries in the index are compared.</p></div>
</div>
<h2 id="_options">OPTIONS</h2>
<div class="sectionbody">
<div class="dlist"><dl>
<dt class="hdlist1">
-p
</dt>
<dt class="hdlist1">
-u
</dt>
<dt class="hdlist1">
--patch
</dt>
<dd>
<p>
Generate patch (see section on generating patches).
</p>
</dd>
<dt class="hdlist1">
-U<n>
</dt>
<dt class="hdlist1">
--unified=<n>
</dt>
<dd>
<p>
Generate diffs with <n> lines of context instead of
the usual three.
Implies <tt>-p</tt>.
</p>
</dd>
<dt class="hdlist1">
--raw
</dt>
<dd>
<p>
Generate the raw format.
This is the default.
</p>
</dd>
<dt class="hdlist1">
--patch-with-raw
</dt>
<dd>
<p>
Synonym for <tt>-p --raw</tt>.
</p>
</dd>
<dt class="hdlist1">
--patience
</dt>
<dd>
<p>
Generate a diff using the "patience diff" algorithm.
</p>
</dd>
<dt class="hdlist1">
--stat[=<width>[,<name-width>[,<count>]]]
</dt>
<dd>
<p>
Generate a diffstat. You can override the default
output width for 80-column terminal by <tt>--stat=<width></tt>.
The width of the filename part can be controlled by
giving another width to it separated by a comma.
By giving a third parameter <tt><count></tt>, you can limit the
output to the first <tt><count></tt> lines, followed by
<tt>…</tt> if there are more.
</p>
<div class="paragraph"><p>These parameters can also be set individually with <tt>--stat-width=<width></tt>,
<tt>--stat-name-width=<name-width></tt> and <tt>--stat-count=<count></tt>.</p></div>
</dd>
<dt class="hdlist1">
--numstat
</dt>
<dd>
<p>
Similar to <tt>--stat</tt>, but shows number of added and
deleted lines in decimal notation and pathname without
abbreviation, to make it more machine friendly. For
binary files, outputs two <tt>-</tt> instead of saying
<tt>0 0</tt>.
</p>
</dd>
<dt class="hdlist1">
--shortstat
</dt>
<dd>
<p>
Output only the last line of the <tt>--stat</tt> format containing total
number of modified files, as well as number of added and deleted
lines.
</p>
</dd>
<dt class="hdlist1">
--dirstat[=<param1,param2,…>]
</dt>
<dd>
<p>
Output the distribution of relative amount of changes for each
sub-directory. The behavior of <tt>--dirstat</tt> can be customized by
passing it a comma separated list of parameters.
The defaults are controlled by the <tt>diff.dirstat</tt> configuration
variable (see <a href="git-config.html">git-config(1)</a>).
The following parameters are available:
</p>
<div class="dlist"><dl>
<dt class="hdlist1">
<tt>changes</tt>
</dt>
<dd>
<p>
Compute the dirstat numbers by counting the lines that have been
removed from the source, or added to the destination. This ignores
the amount of pure code movements within a file. In other words,
rearranging lines in a file is not counted as much as other changes.
This is the default behavior when no parameter is given.
</p>
</dd>
<dt class="hdlist1">
<tt>lines</tt>
</dt>
<dd>
<p>
Compute the dirstat numbers by doing the regular line-based diff
analysis, and summing the removed/added line counts. (For binary
files, count 64-byte chunks instead, since binary files have no
natural concept of lines). This is a more expensive <tt>--dirstat</tt>
behavior than the <tt>changes</tt> behavior, but it does count rearranged
lines within a file as much as other changes. The resulting output
is consistent with what you get from the other <tt>--*stat</tt> options.
</p>
</dd>
<dt class="hdlist1">
<tt>files</tt>
</dt>
<dd>
<p>
Compute the dirstat numbers by counting the number of files changed.
Each changed file counts equally in the dirstat analysis. This is
the computationally cheapest <tt>--dirstat</tt> behavior, since it does
not have to look at the file contents at all.
</p>
</dd>
<dt class="hdlist1">
<tt>cumulative</tt>
</dt>
<dd>
<p>
Count changes in a child directory for the parent directory as well.
Note that when using <tt>cumulative</tt>, the sum of the percentages
reported may exceed 100%. The default (non-cumulative) behavior can
be specified with the <tt>noncumulative</tt> parameter.
</p>
</dd>
<dt class="hdlist1">
<limit>
</dt>
<dd>
<p>
An integer parameter specifies a cut-off percent (3% by default).
Directories contributing less than this percentage of the changes
are not shown in the output.
</p>
</dd>
</dl></div>
<div class="paragraph"><p>Example: The following will count changed files, while ignoring
directories with less than 10% of the total amount of changed files,
and accumulating child directory counts in the parent directories:
<tt>--dirstat=files,10,cumulative</tt>.</p></div>
</dd>
<dt class="hdlist1">
--summary
</dt>
<dd>
<p>
Output a condensed summary of extended header information
such as creations, renames and mode changes.
</p>
</dd>
<dt class="hdlist1">
--patch-with-stat
</dt>
<dd>
<p>
Synonym for <tt>-p --stat</tt>.
</p>
</dd>
<dt class="hdlist1">
-z
</dt>
<dd>
<p>
When <tt>--raw</tt>, <tt>--numstat</tt>, <tt>--name-only</tt> or <tt>--name-status</tt> has been
given, do not munge pathnames and use NULs as output field terminators.
</p>
<div class="paragraph"><p>Without this option, each pathname output will have TAB, LF, double quotes,
and backslash characters replaced with <tt>\t</tt>, <tt>\n</tt>, <tt>\"</tt>, and <tt>\\</tt>,
respectively, and the pathname will be enclosed in double quotes if
any of those replacements occurred.</p></div>
</dd>
<dt class="hdlist1">
--name-only
</dt>
<dd>
<p>
Show only names of changed files.
</p>
</dd>
<dt class="hdlist1">
--name-status
</dt>
<dd>
<p>
Show only names and status of changed files. See the description
of the <tt>--diff-filter</tt> option on what the status letters mean.
</p>
</dd>
<dt class="hdlist1">
--submodule[=<format>]
</dt>
<dd>
<p>
Chose the output format for submodule differences. <format> can be one of
<em>short</em> and <em>log</em>. <em>short</em> just shows pairs of commit names, this format
is used when this option is not given. <em>log</em> is the default value for this
option and lists the commits in that commit range like the <em>summary</em>
option of <a href="git-submodule.html">git-submodule(1)</a> does.
</p>
</dd>
<dt class="hdlist1">
--color[=<when>]
</dt>
<dd>
<p>
Show colored diff.
The value must be <tt>always</tt> (the default for <tt><when></tt>), <tt>never</tt>, or <tt>auto</tt>.
The default value is <tt>never</tt>.
</p>
</dd>
<dt class="hdlist1">
--no-color
</dt>
<dd>
<p>
Turn off colored diff.
It is the same as <tt>--color=never</tt>.
</p>
</dd>
<dt class="hdlist1">
--word-diff[=<mode>]
</dt>
<dd>
<p>
Show a word diff, using the <mode> to delimit changed words.
By default, words are delimited by whitespace; see
<tt>--word-diff-regex</tt> below. The <mode> defaults to <em>plain</em>, and
must be one of:
</p>
<div class="dlist"><dl>
<dt class="hdlist1">
color
</dt>
<dd>
<p>
Highlight changed words using only colors. Implies <tt>--color</tt>.
</p>
</dd>
<dt class="hdlist1">
plain
</dt>
<dd>
<p>
Show words as <tt>[-removed-]</tt> and <tt>{<tt>added</tt>}</tt>. Makes no
attempts to escape the delimiters if they appear in the input,
so the output may be ambiguous.
</p>
</dd>
<dt class="hdlist1">
porcelain
</dt>
<dd>
<p>
Use a special line-based format intended for script
consumption. Added/removed/unchanged runs are printed in the
usual unified diff format, starting with a <tt>+</tt>/<tt>-</tt>/` `
character at the beginning of the line and extending to the
end of the line. Newlines in the input are represented by a
tilde <tt>~</tt> on a line of its own.
</p>
</dd>
<dt class="hdlist1">
none
</dt>
<dd>
<p>
Disable word diff again.
</p>
</dd>
</dl></div>
<div class="paragraph"><p>Note that despite the name of the first mode, color is used to
highlight the changed parts in all modes if enabled.</p></div>
</dd>
<dt class="hdlist1">
--word-diff-regex=<regex>
</dt>
<dd>
<p>
Use <regex> to decide what a word is, instead of considering
runs of non-whitespace to be a word. Also implies
<tt>--word-diff</tt> unless it was already enabled.
</p>
<div class="paragraph"><p>Every non-overlapping match of the
<regex> is considered a word. Anything between these matches is
considered whitespace and ignored(!) for the purposes of finding
differences. You may want to append <tt>|[^[:space:]]</tt> to your regular
expression to make sure that it matches all non-whitespace characters.
A match that contains a newline is silently truncated(!) at the
newline.</p></div>
<div class="paragraph"><p>The regex can also be set via a diff driver or configuration option, see
<a href="gitattributes.html">gitattributes(1)</a> or <a href="git-config.html">git-config(1)</a>. Giving it explicitly
overrides any diff driver or configuration setting. Diff drivers
override configuration settings.</p></div>
</dd>
<dt class="hdlist1">
--color-words[=<regex>]
</dt>
<dd>
<p>
Equivalent to <tt>--word-diff=color</tt> plus (if a regex was
specified) <tt>--word-diff-regex=<regex></tt>.
</p>
</dd>
<dt class="hdlist1">
--no-renames
</dt>
<dd>
<p>
Turn off rename detection, even when the configuration
file gives the default to do so.
</p>
</dd>
<dt class="hdlist1">
--check
</dt>
<dd>
<p>
Warn if changes introduce whitespace errors. What are
considered whitespace errors is controlled by <tt>core.whitespace</tt>
configuration. By default, trailing whitespaces (including
lines that solely consist of whitespaces) and a space character
that is immediately followed by a tab character inside the
initial indent of the line are considered whitespace errors.
Exits with non-zero status if problems are found. Not compatible
with --exit-code.
</p>
</dd>
<dt class="hdlist1">
--full-index
</dt>
<dd>
<p>
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.
</p>
</dd>
<dt class="hdlist1">
--binary
</dt>
<dd>
<p>
In addition to <tt>--full-index</tt>, output a binary diff that
can be applied with <tt>git-apply</tt>.
</p>
</dd>
<dt class="hdlist1">
--abbrev[=<n>]
</dt>
<dd>
<p>
Instead of showing the full 40-byte hexadecimal object
name in diff-raw format output and diff-tree header
lines, show only a partial prefix. This is
independent of the <tt>--full-index</tt> option above, which controls
the diff-patch output format. Non default number of
digits can be specified with <tt>--abbrev=<n></tt>.
</p>
</dd>
<dt class="hdlist1">
-B[<n>][/<m>]
</dt>
<dt class="hdlist1">
--break-rewrites[=[<n>][/<m>]]
</dt>
<dd>
<p>
Break complete rewrite changes into pairs of delete and
create. This serves two purposes:
</p>
<div class="paragraph"><p>It affects the way a change that amounts to a total rewrite of a file
not as a series of deletion and insertion mixed together with a very
few lines that happen to match textually as the context, but as a
single deletion of everything old followed by a single insertion of
everything new, and the number <tt>m</tt> controls this aspect of the -B
option (defaults to 60%). <tt>-B/70%</tt> specifies that less than 30% of the
original should remain in the result for git to consider it a total
rewrite (i.e. otherwise the resulting patch will be a series of
deletion and insertion mixed together with context lines).</p></div>
<div class="paragraph"><p>When used with -M, a totally-rewritten file is also considered as the
source of a rename (usually -M only considers a file that disappeared
as the source of a rename), and the number <tt>n</tt> controls this aspect of
the -B option (defaults to 50%). <tt>-B20%</tt> specifies that a change with
addition and deletion compared to 20% or more of the file’s size are
eligible for being picked up as a possible source of a rename to
another file.</p></div>
</dd>
<dt class="hdlist1">
-M[<n>]
</dt>
<dt class="hdlist1">
--find-renames[=<n>]
</dt>
<dd>
<p>
Detect renames.
If <tt>n</tt> is specified, it is a threshold on the similarity
index (i.e. amount of addition/deletions compared to the
file’s size). For example, <tt>-M90%</tt> means git should consider a
delete/add pair to be a rename if more than 90% of the file
hasn’t changed.
</p>
</dd>
<dt class="hdlist1">
-C[<n>]
</dt>
<dt class="hdlist1">
--find-copies[=<n>]
</dt>
<dd>
<p>
Detect copies as well as renames. See also <tt>--find-copies-harder</tt>.
If <tt>n</tt> is specified, it has the same meaning as for <tt>-M<n></tt>.
</p>
</dd>
<dt class="hdlist1">
--find-copies-harder
</dt>
<dd>
<p>
For performance reasons, by default, <tt>-C</tt> 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. Giving more than one
<tt>-C</tt> option has the same effect.
</p>
</dd>
<dt class="hdlist1">
-D
</dt>
<dt class="hdlist1">
--irreversible-delete
</dt>
<dd>
<p>
Omit the preimage for deletes, i.e. print only the header but not
the diff between the preimage and <tt>/dev/null</tt>. The resulting patch
is not meant to be applied with <tt>patch</tt> nor <tt>git apply</tt>; this is
solely for people who want to just concentrate on reviewing the
text after the change. In addition, the output obviously lack
enough information to apply such a patch in reverse, even manually,
hence the name of the option.
</p>
<div class="paragraph"><p>When used together with <tt>-B</tt>, omit also the preimage in the deletion part
of a delete/create pair.</p></div>
</dd>
<dt class="hdlist1">
-l<num>
</dt>
<dd>
<p>
The <tt>-M</tt> and <tt>-C</tt> options require O(n^2) processing time where n
is the number of potential rename/copy targets. This
option prevents rename/copy detection from running if
the number of rename/copy targets exceeds the specified
number.
</p>
</dd>
<dt class="hdlist1">
--diff-filter=[(A|C|D|M|R|T|U|X|B)…[*]]
</dt>
<dd>
<p>
Select only files that are Added (<tt>A</tt>), Copied (<tt>C</tt>),
Deleted (<tt>D</tt>), Modified (<tt>M</tt>), Renamed (<tt>R</tt>), have their
type (i.e. regular file, symlink, submodule, …) changed (<tt>T</tt>),
are Unmerged (<tt>U</tt>), are
Unknown (<tt>X</tt>), or have had their pairing Broken (<tt>B</tt>).
Any combination of the filter characters (including none) can be used.
When <tt>*</tt> (All-or-none) is added to the combination, all
paths are selected if there is any file that matches
other criteria in the comparison; if there is no file
that matches other criteria, nothing is selected.
</p>
</dd>
<dt class="hdlist1">
-S<string>
</dt>
<dd>
<p>
Look for differences that introduce or remove an instance of
<string>. Note that this is different than the string simply
appearing in diff output; see the <em>pickaxe</em> entry in
<a href="gitdiffcore.html">gitdiffcore(7)</a> for more details.
</p>
</dd>
<dt class="hdlist1">
-G<regex>
</dt>
<dd>
<p>
Look for differences whose added or removed line matches
the given <regex>.
</p>
</dd>
<dt class="hdlist1">
--pickaxe-all
</dt>
<dd>
<p>
When <tt>-S</tt> or <tt>-G</tt> finds a change, show all the changes in that
changeset, not just the files that contain the change
in <string>.
</p>
</dd>
<dt class="hdlist1">
--pickaxe-regex
</dt>
<dd>
<p>
Make the <string> not a plain string but an extended POSIX
regex to match.
</p>
</dd>
<dt class="hdlist1">
-O<orderfile>
</dt>
<dd>
<p>
Output the patch in the order specified in the
<orderfile>, which has one shell glob pattern per line.
</p>
</dd>
<dt class="hdlist1">
-R
</dt>
<dd>
<p>
Swap two inputs; that is, show differences from index or
on-disk file to tree contents.
</p>
</dd>
<dt class="hdlist1">
--relative[=<path>]
</dt>
<dd>
<p>
When run from a subdirectory of the project, it can be
told to exclude changes outside the directory and show
You can’t perform that action at this time.