6 git-apply - Apply a patch on a git index file and/or a working tree
12 'git apply' [--stat] [--numstat] [--summary] [--check] [--index]
13 [--apply] [--no-add] [--build-fake-ancestor=<file>] [-R | --reverse]
14 [--allow-binary-replacement | --binary] [--reject] [-z]
15 [-pNUM] [-CNUM] [--inaccurate-eof] [--recount] [--cached]
16 [--ignore-space-change | --ignore-whitespace ]
17 [--whitespace=<nowarn|warn|fix|error|error-all>]
18 [--exclude=PATH] [--include=PATH] [--directory=<root>]
19 [--verbose] [<patch>...]
23 Reads supplied 'diff' output and applies it on a git index file
29 The files to read the patch from. '-' can be used to read
30 from the standard input.
33 Instead of applying the patch, output diffstat for the
34 input. Turns off "apply".
37 Similar to \--stat, but shows the number of added and
38 deleted lines in decimal notation and the pathname without
39 abbreviation, to make it more machine friendly. For
40 binary files, outputs two `-` instead of saying
41 `0 0`. Turns off "apply".
44 Instead of applying the patch, output a condensed
45 summary of information obtained from git diff extended
46 headers, such as creations, renames and mode changes.
50 Instead of applying the patch, see if the patch is
51 applicable to the current work tree and/or the index
52 file and detects errors. Turns off "apply".
55 When --check is in effect, or when applying the patch
56 (which is the default when none of the options that
57 disables it is in effect), make sure the patch is
58 applicable to what the current index file records. If
59 the file to be patched in the work tree is not
60 up-to-date, it is flagged as an error. This flag also
61 causes the index file to be updated.
64 Apply a patch without touching the working tree. Instead take the
65 cached data, apply the patch, and store the result in the index
66 without using the working tree. This implies '--index'.
68 --build-fake-ancestor=<file>::
69 Newer 'git-diff' output has embedded 'index information'
70 for each blob to help identify the original version that
71 the patch applies to. When this flag is given, and if
72 the original versions of the blobs are available locally,
73 builds a temporary index containing those blobs.
75 When a pure mode change is encountered (which has no index information),
76 the information is read from the current index instead.
80 Apply the patch in reverse.
83 For atomicity, 'git-apply' by default fails the whole patch and
84 does not touch the working tree when some of the hunks
85 do not apply. This option makes it apply
86 the parts of the patch that are applicable, and leave the
87 rejected hunks in corresponding *.rej files.
90 When showing the index information, do not munge paths,
91 but use NUL terminated machine readable format. Without
92 this flag, the pathnames output will have TAB, LF, and
93 backslash characters replaced with `\t`, `\n`, and `\\`,
97 Remove <n> leading slashes from traditional diff paths. The
101 Ensure at least <n> lines of surrounding context match before
102 and after each change. When fewer lines of surrounding
103 context exist they all must match. By default no context is
107 By default, 'git-apply' expects that the patch being
108 applied is a unified diff with at least one line of context.
109 This provides good safety measures, but breaks down when
110 applying a diff generated with --unified=0. To bypass these
111 checks use '--unidiff-zero'.
113 Note, for the reasons stated above usage of context-free patches is
117 If you use any of the options marked "Turns off
118 'apply'" above, 'git-apply' reads and outputs the
119 requested information without actually applying the
120 patch. Give this flag after those flags to also apply
124 When applying a patch, ignore additions made by the
125 patch. This can be used to extract the common part between
126 two files by first running 'diff' on them and applying
127 the result with this option, which would apply the
128 deletion part but not the addition part.
130 --allow-binary-replacement::
132 Historically we did not allow binary patch applied
133 without an explicit permission from the user, and this
134 flag was the way to do so. Currently we always allow binary
135 patch application, so this is a no-op.
137 --exclude=<path-pattern>::
138 Don't apply changes to files matching the given path pattern. This can
139 be useful when importing patchsets, where you want to exclude certain
140 files or directories.
142 --include=<path-pattern>::
143 Apply changes to files matching the given path pattern. This can
144 be useful when importing patchsets, where you want to include certain
145 files or directories.
147 When --exclude and --include patterns are used, they are examined in the
148 order they appear on the command line, and the first match determines if a
149 patch to each path is used. A patch to a path that does not match any
150 include/exclude pattern is used by default if there is no include pattern
151 on the command line, and ignored if there is any include pattern.
153 --ignore-space-change::
154 --ignore-whitespace::
155 When applying a patch, ignore changes in whitespace in context
157 Context lines will preserve their whitespace, and they will not
158 undergo whitespace fixing regardless of the value of the
159 `--whitespace` option. New lines will still be fixed, though.
161 --whitespace=<action>::
162 When applying a patch, detect a new or modified line that has
163 whitespace errors. What are considered whitespace errors is
164 controlled by `core.whitespace` configuration. By default,
165 trailing whitespaces (including lines that solely consist of
166 whitespaces) and a space character that is immediately followed
167 by a tab character inside the initial indent of the line are
168 considered whitespace errors.
170 By default, the command outputs warning messages but applies the patch.
171 When `git-apply` is used for statistics and not applying a
172 patch, it defaults to `nowarn`.
174 You can use different `<action>` values to control this
177 * `nowarn` turns off the trailing whitespace warning.
178 * `warn` outputs warnings for a few such errors, but applies the
179 patch as-is (default).
180 * `fix` outputs warnings for a few such errors, and applies the
181 patch after fixing them (`strip` is a synonym --- the tool
182 used to consider only trailing whitespace characters as errors, and the
183 fix involved 'stripping' them, but modern gits do more).
184 * `error` outputs warnings for a few such errors, and refuses
186 * `error-all` is similar to `error` but shows all errors.
189 Under certain circumstances, some versions of 'diff' do not correctly
190 detect a missing new-line at the end of the file. As a result, patches
191 created by such 'diff' programs do not record incomplete lines
192 correctly. This option adds support for applying such patches by
193 working around this bug.
197 Report progress to stderr. By default, only a message about the
198 current patch being applied will be printed. This option will cause
199 additional information to be reported.
202 Do not trust the line counts in the hunk headers, but infer them
203 by inspecting the patch (e.g. after editing the patch without
204 adjusting the hunk headers appropriately).
207 Prepend <root> to all filenames. If a "-p" argument was also passed,
208 it is applied before prepending the new root.
210 For example, a patch that talks about updating `a/git-gui.sh` to `b/git-gui.sh`
211 can be applied to the file in the working tree `modules/git-gui/git-gui.sh` by
212 running `git apply --directory=modules/git-gui`.
217 apply.ignorewhitespace::
218 Set to 'change' if you want changes in whitespace to be ignored by default.
219 Set to one of: no, none, never, false if you want changes in
220 whitespace to be significant.
222 When no `--whitespace` flag is given from the command
223 line, this configuration item is used as the default.
227 If the patch contains any changes to submodules then 'git-apply'
228 treats these changes as follows.
230 If --index is specified (explicitly or implicitly), then the submodule
231 commits must match the index exactly for the patch to apply. If any
232 of the submodules are checked-out, then these check-outs are completely
233 ignored, i.e., they are not required to be up-to-date or clean and they
236 If --index is not specified, then the submodule commits in the patch
237 are ignored and only the absence or presence of the corresponding
238 subdirectory is checked and (if possible) updated.
242 Written by Linus Torvalds <torvalds@osdl.org>
246 Documentation by Junio C Hamano
250 Part of the linkgit:git[1] suite