NAME
----
-git-apply - Apply patch on a git index file and a work tree
+git-apply - Apply a patch on a git index file and a working tree
SYNOPSIS
--------
[verse]
-'git-apply' [--stat] [--numstat] [--summary] [--check] [--index] [--apply]
- [--no-add] [--index-info] [--allow-binary-replacement | --binary]
- [-R | --reverse] [--reject] [-z] [-pNUM] [-CNUM] [--inaccurate-eof]
- [--whitespace=<nowarn|warn|error|error-all|strip>] [--exclude=PATH]
- [--cached] [--verbose] [<patch>...]
+'git-apply' [--stat] [--numstat] [--summary] [--check] [--index]
+ [--apply] [--no-add] [--build-fake-ancestor <file>] [-R | --reverse]
+ [--allow-binary-replacement | --binary] [--reject] [-z]
+ [-pNUM] [-CNUM] [--inaccurate-eof] [--cached]
+ [--whitespace=<nowarn|warn|fix|error|error-all>]
+ [--exclude=PATH] [--verbose] [<patch>...]
DESCRIPTION
-----------
--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. Turns
- off "apply".
+ abbreviation, to make it more machine friendly. For
+ binary files, outputs two `-` instead of saying
+ `0 0`. Turns off "apply".
--summary::
Instead of applying the patch, output a condensed
cached data, apply the patch, and store the result in the index,
without using the working tree. This implies '--index'.
---index-info::
+--build-fake-ancestor <file>::
Newer git-diff output has embedded 'index information'
for each blob to help identify the original version that
the patch applies to. When this flag is given, and if
- the original version of the blob is available locally,
- outputs information about them to the standard output.
+ the original versions of the blobs is available locally,
+ builds a temporary index containing those blobs.
++
+When a pure mode change is encountered (which has no index information),
+the information is read from the current index instead.
-R, --reverse::
Apply the patch in reverse.
--reject::
- For atomicity, gitlink:git-apply[1] by default fails the whole patch and
+ For atomicity, linkgit:git-apply[1] 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
context exist they all must match. By default no context is
ever ignored.
+--unidiff-zero::
+ By default, linkgit:git-apply[1] 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 --unified=0. To bypass these
+ checks use '--unidiff-zero'.
++
+Note, for the reasons stated above usage of context-free patches are
+discouraged.
+
--apply::
If you use any of the options marked "Turns off
- 'apply'" above, gitlink:git-apply[1] reads and outputs the
+ 'apply'" above, linkgit:git-apply[1] reads and outputs the
information you asked without actually applying the
patch. Give this flag after those flags to also apply
the patch.
--no-add::
When applying a patch, ignore additions made by the
- patch. This can be used to extract common part between
+ patch. This can be used to extract the common part between
two files by first running `diff` on them and applying
the result with this option, which would apply the
deletion part but not addition part.
--allow-binary-replacement, --binary::
- When applying a patch, which is a git-enhanced patch
- that was prepared to record the pre- and post-image object
- name in full, and the path being patched exactly matches
- the object the patch applies to (i.e. "index" line's
- pre-image object name is what is in the working tree),
- and the post-image object is available in the object
- database, use the post-image object as the patch
- result. This allows binary files to be patched in a
- very limited way.
+ 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.
--exclude=<path-pattern>::
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.
---whitespace=<option>::
- When applying a patch, detect a new or modified line
- that ends with trailing whitespaces (this includes a
- line that solely consists of whitespaces). By default,
- the command outputs warning messages and applies the
- patch.
- When gitlink:git-apply[1] is used for statistics and not applying a
- patch, it defaults to `nowarn`.
- You can use different `<option>` to control this
- behavior:
+--whitespace=<action>::
+ When applying a patch, detect a new or modified line that has
+ whitespace errors. What are considered whitespace errors is
+ controlled by `core.whitespace` 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.
++
+By default, the command outputs warning messages but applies the patch.
+When linkgit:git-apply[1] is used for statistics and not applying a
+patch, it defaults to `nowarn`.
++
+You can use different `<action>` to control this
+behavior:
+
* `nowarn` turns off the trailing whitespace warning.
* `warn` outputs warnings for a few such errors, but applies the
- patch (default).
+ patch as-is (default).
+* `fix` outputs warnings for a few such errors, and applies the
+ patch after fixing them (`strip` is a synonym --- the tool
+ used to consider only trailing whitespaces as errors, and the
+ fix involved 'stripping' them, but modern gits do more).
* `error` outputs warnings for a few such errors, and refuses
to apply the patch.
* `error-all` is similar to `error` but shows all errors.
-* `strip` outputs warnings for a few such errors, strips out the
- trailing whitespaces and applies the patch.
---inacurate-eof::
+--inaccurate-eof::
Under certain circumstances, some versions of diff do not correctly
detect a missing new-line at the end of the file. As a result, patches
created by such diff programs do not record incomplete lines
correctly. This option adds support for applying such patches by
working around this bug.
---verbose::
+-v, --verbose::
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.
When no `--whitespace` flag is given from the command
line, this configuration item is used as the default.
+Submodules
+----------
+If the patch contains any changes to submodules then linkgit:git-apply[1]
+treats these changes as follows.
+
+If --index 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.
+
+If --index is not specified, then the submodule commits in the patch
+are ignored and only the absence of presence of the corresponding
+subdirectory is checked and (if possible) updated.
Author
------
GIT
---
-Part of the gitlink:git[7] suite
-
+Part of the linkgit:git[7] suite