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<body>
<div id="header">
<h1>
git-apply(1) Manual Page
</h1>
<h2>NAME</h2>
<div class="sectionbody">
<p>git-apply -
Apply a patch to files and/or to the index
</p>
</div>
</div>
<div id="content">
<h2 id="_synopsis">SYNOPSIS</h2>
<div class="sectionbody">
<div class="verseblock">
<div class="verseblock-content"><em>git apply</em> [--stat] [--numstat] [--summary] [--check] [--index] [--3way]
[--apply] [--no-add] [--build-fake-ancestor=<file>] [-R | --reverse]
[--allow-binary-replacement | --binary] [--reject] [-z]
[-p<n>] [-C<n>] [--inaccurate-eof] [--recount] [--cached]
[--ignore-space-change | --ignore-whitespace ]
[--whitespace=(nowarn|warn|fix|error|error-all)]
[--exclude=<path>] [--include=<path>] [--directory=<root>]
[--verbose] [<patch>…]</div>
<div class="verseblock-attribution">
</div></div>
</div>
<h2 id="_description">DESCRIPTION</h2>
<div class="sectionbody">
<div class="paragraph"><p>Reads the supplied diff output (i.e. "a patch") and applies it to files.
With the <tt>--index</tt> option the patch is also applied to the index, and
with the <tt>--cached</tt> option the patch is only applied to the index.
Without these options, the command applies the patch only to files,
and does not require them to be in a git repository.</p></div>
<div class="paragraph"><p>This command applies the patch but does not create a commit. Use
<a href="git-am.html">git-am(1)</a> to create commits from patches generated by
<a href="git-format-patch.html">git-format-patch(1)</a> and/or received by email.</p></div>
</div>
<h2 id="_options">OPTIONS</h2>
<div class="sectionbody">
<div class="dlist"><dl>
<dt class="hdlist1">
<patch>…
</dt>
<dd>
<p>
The files to read the patch from. <em>-</em> can be used to read
from the standard input.
</p>
</dd>
<dt class="hdlist1">
--stat
</dt>
<dd>
<p>
Instead of applying the patch, output diffstat for the
input. Turns off "apply".
</p>
</dd>
<dt class="hdlist1">
--numstat
</dt>
<dd>
<p>
Similar to <tt>--stat</tt>, but shows the number of added and
deleted lines in decimal notation and the pathname without
abbreviation, to make it more machine friendly. For
binary files, outputs two <tt>-</tt> instead of saying
<tt>0 0</tt>. Turns off "apply".
</p>
</dd>
<dt class="hdlist1">
--summary
</dt>
<dd>
<p>
Instead of applying the patch, output a condensed
summary of information obtained from git diff extended
headers, such as creations, renames and mode changes.
Turns off "apply".
</p>
</dd>
<dt class="hdlist1">
--check
</dt>
<dd>
<p>
Instead of applying the patch, see if the patch is
applicable to the current working tree and/or the index
file and detects errors. Turns off "apply".
</p>
</dd>
<dt class="hdlist1">
--index
</dt>
<dd>
<p>
When <tt>--check</tt> is in effect, or when applying the patch
(which is the default when none of the options that
disables it is in effect), make sure the patch is
applicable to what the current index file records. If
the file to be patched in the working tree is not
up-to-date, it is flagged as an error. This flag also
causes the index file to be updated.
</p>
</dd>
<dt class="hdlist1">
--cached
</dt>
<dd>
<p>
Apply a patch without touching the working tree. Instead take the
cached data, apply the patch, and store the result in the index
without using the working tree. This implies <tt>--index</tt>.
</p>
</dd>
<dt class="hdlist1">
-3
</dt>
<dt class="hdlist1">
--3way
</dt>
<dd>
<p>
When the patch does not apply cleanly, fall back on 3-way merge if
the patch records the identity of blobs it is supposed to apply to,
and we have those blobs available locally, possibly leaving the
conflict markers in the files in the working tree for the user to
resolve. This option implies the <tt>--index</tt> option, and is incompatible
with the <tt>--reject</tt> and the <tt>--cached</tt> options.
</p>
</dd>
<dt class="hdlist1">
--build-fake-ancestor=<file>
</dt>
<dd>
<p>
Newer <em>git diff</em> output has embedded <em>index information</em>
for each blob to help identify the original version that
the patch applies to. When this flag is given, and if
the original versions of the blobs are available locally,
builds a temporary index containing those blobs.
</p>
<div class="paragraph"><p>When a pure mode change is encountered (which has no index information),
the information is read from the current index instead.</p></div>
</dd>
<dt class="hdlist1">
-R
</dt>
<dt class="hdlist1">
--reverse
</dt>
<dd>
<p>
Apply the patch in reverse.
</p>
</dd>
<dt class="hdlist1">
--reject
</dt>
<dd>
<p>
For atomicity, <em>git apply</em> by default fails the whole patch and
does not touch the working tree when some of the hunks
do not apply. This option makes it apply
the parts of the patch that are applicable, and leave the
rejected hunks in corresponding *.rej files.
</p>
</dd>
<dt class="hdlist1">
-z
</dt>
<dd>
<p>
When <tt>--numstat</tt> has been given, do not munge pathnames,
but use a NUL-terminated machine-readable format.
</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">
-p<n>
</dt>
<dd>
<p>
Remove <n> leading slashes from traditional diff paths. The
default is 1.
</p>
</dd>
<dt class="hdlist1">
-C<n>
</dt>
<dd>
<p>
Ensure at least <n> lines of surrounding context match before
and after each change. When fewer lines of surrounding
context exist they all must match. By default no context is
ever ignored.
</p>
</dd>
<dt class="hdlist1">
--unidiff-zero
</dt>
<dd>
<p>
By default, <em>git apply</em> expects that the patch being
applied is a unified diff with at least one line of context.
This provides good safety measures, but breaks down when
applying a diff generated with <tt>--unified=0</tt>. To bypass these
checks use <tt>--unidiff-zero</tt>.
</p>
<div class="paragraph"><p>Note, for the reasons stated above usage of context-free patches is
discouraged.</p></div>
</dd>
<dt class="hdlist1">
--apply
</dt>
<dd>
<p>
If you use any of the options marked "Turns off
<em>apply</em>" above, <em>git apply</em> reads and outputs the
requested information without actually applying the
patch. Give this flag after those flags to also apply
the patch.
</p>
</dd>
<dt class="hdlist1">
--no-add
</dt>
<dd>
<p>
When applying a patch, ignore additions made by the
patch. This can be used to extract the common part between
two files by first running <em>diff</em> on them and applying
the result with this option, which would apply the
deletion part but not the addition part.
</p>
</dd>
<dt class="hdlist1">
--allow-binary-replacement
</dt>
<dt class="hdlist1">
--binary
</dt>
<dd>
<p>
Historically we did not allow binary patch applied
without an explicit permission from the user, and this
flag was the way to do so. Currently we always allow binary
patch application, so this is a no-op.
</p>
</dd>
<dt class="hdlist1">
--exclude=<path-pattern>
</dt>
<dd>
<p>
Don’t apply changes to files matching the given path pattern. This can
be useful when importing patchsets, where you want to exclude certain
files or directories.
</p>
</dd>
<dt class="hdlist1">
--include=<path-pattern>
</dt>
<dd>
<p>
Apply changes to files matching the given path pattern. This can
be useful when importing patchsets, where you want to include certain
files or directories.
</p>
<div class="paragraph"><p>When <tt>--exclude</tt> and <tt>--include</tt> patterns are used, they are examined in the
order they appear on the command line, and the first match determines if a
patch to each path is used. A patch to a path that does not match any
include/exclude pattern is used by default if there is no include pattern
on the command line, and ignored if there is any include pattern.</p></div>
</dd>
<dt class="hdlist1">
--ignore-space-change
</dt>
<dt class="hdlist1">
--ignore-whitespace
</dt>
<dd>
<p>
When applying a patch, ignore changes in whitespace in context
lines if necessary.
Context lines will preserve their whitespace, and they will not
undergo whitespace fixing regardless of the value of the
<tt>--whitespace</tt> option. New lines will still be fixed, though.
</p>
</dd>
<dt class="hdlist1">
--whitespace=<action>
</dt>
<dd>
<p>
When applying a patch, detect a new or modified line that has
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.
</p>
<div class="paragraph"><p>By default, the command outputs warning messages but applies the patch.
When <tt>git-apply</tt> is used for statistics and not applying a
patch, it defaults to <tt>nowarn</tt>.</p></div>
<div class="paragraph"><p>You can use different <tt><action></tt> values to control this
behavior:</p></div>
<div class="ulist"><ul>
<li>
<p>
<tt>nowarn</tt> turns off the trailing whitespace warning.
</p>
</li>
<li>
<p>
<tt>warn</tt> outputs warnings for a few such errors, but applies the
patch as-is (default).
</p>
</li>
<li>
<p>
<tt>fix</tt> outputs warnings for a few such errors, and applies the
patch after fixing them (<tt>strip</tt> is a synonym --- the tool
used to consider only trailing whitespace characters as errors, and the
fix involved <em>stripping</em> them, but modern gits do more).
</p>
</li>
<li>
<p>
<tt>error</tt> outputs warnings for a few such errors, and refuses
to apply the patch.
</p>
</li>
<li>
<p>
<tt>error-all</tt> is similar to <tt>error</tt> but shows all errors.
</p>
</li>
</ul></div>
</dd>
<dt class="hdlist1">
--inaccurate-eof
</dt>
<dd>
<p>
Under certain circumstances, some versions of <em>diff</em> do not correctly
detect a missing new-line at the end of the file. As a result, patches
created by such <em>diff</em> programs do not record incomplete lines
correctly. This option adds support for applying such patches by
working around this bug.
</p>
</dd>
<dt class="hdlist1">
-v
</dt>
<dt class="hdlist1">
--verbose
</dt>
<dd>
<p>
Report progress to stderr. By default, only a message about the
current patch being applied will be printed. This option will cause
additional information to be reported.
</p>
</dd>
<dt class="hdlist1">
--recount
</dt>
<dd>
<p>
Do not trust the line counts in the hunk headers, but infer them
by inspecting the patch (e.g. after editing the patch without
adjusting the hunk headers appropriately).
</p>
</dd>
<dt class="hdlist1">
--directory=<root>
</dt>
<dd>
<p>
Prepend <root> to all filenames. If a "-p" argument was also passed,
it is applied before prepending the new root.
</p>
<div class="paragraph"><p>For example, a patch that talks about updating <tt>a/git-gui.sh</tt> to <tt>b/git-gui.sh</tt>
can be applied to the file in the working tree <tt>modules/git-gui/git-gui.sh</tt> by
running <tt>git apply --directory=modules/git-gui</tt>.</p></div>
</dd>
</dl></div>
</div>
<h2 id="_configuration">Configuration</h2>
<div class="sectionbody">
<div class="dlist"><dl>
<dt class="hdlist1">
apply.ignorewhitespace
</dt>
<dd>
<p>
Set to <em>change</em> if you want changes in whitespace to be ignored by default.
Set to one of: no, none, never, false if you want changes in
whitespace to be significant.
</p>
</dd>
<dt class="hdlist1">
apply.whitespace
</dt>
<dd>
<p>
When no <tt>--whitespace</tt> flag is given from the command
line, this configuration item is used as the default.
</p>
</dd>
</dl></div>
</div>
<h2 id="_submodules">Submodules</h2>
<div class="sectionbody">
<div class="paragraph"><p>If the patch contains any changes to submodules then <em>git apply</em>
treats these changes as follows.</p></div>
<div class="paragraph"><p>If <tt>--index</tt> is specified (explicitly or implicitly), then the submodule
commits must match the index exactly for the patch to apply. If any
of the submodules are checked-out, then these check-outs are completely
ignored, i.e., they are not required to be up-to-date or clean and they
are not updated.</p></div>
<div class="paragraph"><p>If <tt>--index</tt> is not specified, then the submodule commits in the patch
are ignored and only the absence or presence of the corresponding
subdirectory is checked and (if possible) updated.</p></div>
</div>
<h2 id="_see_also">SEE ALSO</h2>
<div class="sectionbody">
<div class="paragraph"><p><a href="git-am.html">git-am(1)</a>.</p></div>
</div>
<h2 id="_git">GIT</h2>
<div class="sectionbody">
<div class="paragraph"><p>Part of the <a href="git.html">git(1)</a> suite</p></div>
</div>
</div>
<div id="footnotes"><hr /></div>
<div id="footer">
<div id="footer-text">
Last updated 2012-07-15 22:27:35 PDT
</div>
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