6 git-apply - Apply a patch on a git index file and a working tree
12 'git-apply' [--stat] [--numstat] [--summary] [--check] [--index]
13 [--apply] [--no-add] [--index-info] [-R | --reverse]
14 [--allow-binary-replacement | --binary] [--reject] [-z]
15 [-pNUM] [-CNUM] [--inaccurate-eof] [--cached]
16 [--whitespace=<nowarn|warn|error|error-all|strip>]
17 [--exclude=PATH] [--verbose] [<patch>...]
21 Reads supplied diff output and applies it on a git index file
27 The files to read patch from. '-' can be used to read
28 from the standard input.
31 Instead of applying the patch, output diffstat for the
32 input. Turns off "apply".
35 Similar to \--stat, but shows number of added and
36 deleted lines in decimal notation and pathname without
37 abbreviation, to make it more machine friendly. For
38 binary files, outputs two `-` instead of saying
39 `0 0`. Turns off "apply".
42 Instead of applying the patch, output a condensed
43 summary of information obtained from git diff extended
44 headers, such as creations, renames and mode changes.
48 Instead of applying the patch, see if the patch is
49 applicable to the current work tree and/or the index
50 file and detects errors. Turns off "apply".
53 When --check is in effect, or when applying the patch
54 (which is the default when none of the options that
55 disables it is in effect), make sure the patch is
56 applicable to what the current index file records. If
57 the file to be patched in the work tree is not
58 up-to-date, it is flagged as an error. This flag also
59 causes the index file to be updated.
62 Apply a patch without touching the working tree. Instead, take the
63 cached data, apply the patch, and store the result in the index,
64 without using the working tree. This implies '--index'.
67 Newer git-diff output has embedded 'index information'
68 for each blob to help identify the original version that
69 the patch applies to. When this flag is given, and if
70 the original version of the blob is available locally,
71 outputs information about them to the standard output.
74 Apply the patch in reverse.
77 For atomicity, gitlink:git-apply[1] by default fails the whole patch and
78 does not touch the working tree when some of the hunks
79 do not apply. This option makes it apply
80 the parts of the patch that are applicable, and leave the
81 rejected hunks in corresponding *.rej files.
84 When showing the index information, do not munge paths,
85 but use NUL terminated machine readable format. Without
86 this flag, the pathnames output will have TAB, LF, and
87 backslash characters replaced with `\t`, `\n`, and `\\`,
91 Remove <n> leading slashes from traditional diff paths. The
95 Ensure at least <n> lines of surrounding context match before
96 and after each change. When fewer lines of surrounding
97 context exist they all must match. By default no context is
101 By default, gitlink:git-apply[1] expects that the patch being
102 applied is a unified diff with at least one line of context.
103 This provides good safety measures, but breaks down when
104 applying a diff generated with --unified=0. To bypass these
105 checks use '--unidiff-zero'.
107 Note, for the reasons stated above usage of context-free patches are
111 If you use any of the options marked "Turns off
112 'apply'" above, gitlink:git-apply[1] reads and outputs the
113 information you asked without actually applying the
114 patch. Give this flag after those flags to also apply
118 When applying a patch, ignore additions made by the
119 patch. This can be used to extract common part between
120 two files by first running `diff` on them and applying
121 the result with this option, which would apply the
122 deletion part but not addition part.
124 --allow-binary-replacement, --binary::
125 Historically we did not allow binary patch applied
126 without an explicit permission from the user, and this
127 flag was the way to do so. Currently we always allow binary
128 patch application, so this is a no-op.
130 --exclude=<path-pattern>::
131 Don't apply changes to files matching the given path pattern. This can
132 be useful when importing patchsets, where you want to exclude certain
133 files or directories.
135 --whitespace=<option>::
136 When applying a patch, detect a new or modified line
137 that ends with trailing whitespaces (this includes a
138 line that solely consists of whitespaces). By default,
139 the command outputs warning messages and applies the
141 When gitlink:git-apply[1] is used for statistics and not applying a
142 patch, it defaults to `nowarn`.
143 You can use different `<option>` to control this
146 * `nowarn` turns off the trailing whitespace warning.
147 * `warn` outputs warnings for a few such errors, but applies the
149 * `error` outputs warnings for a few such errors, and refuses
151 * `error-all` is similar to `error` but shows all errors.
152 * `strip` outputs warnings for a few such errors, strips out the
153 trailing whitespaces and applies the patch.
156 Under certain circumstances, some versions of diff do not correctly
157 detect a missing new-line at the end of the file. As a result, patches
158 created by such diff programs do not record incomplete lines
159 correctly. This option adds support for applying such patches by
160 working around this bug.
163 Report progress to stderr. By default, only a message about the
164 current patch being applied will be printed. This option will cause
165 additional information to be reported.
171 When no `--whitespace` flag is given from the command
172 line, this configuration item is used as the default.
176 If the patch contains any changes to submodules then gitlink:git-apply[1]
177 treats these changes as follows.
179 If --index is specified (explicitly or implicitly), then the submodule
180 commits must match the index exactly for the patch to apply. If any
181 of the submodules are checked-out, then these check-outs are completely
182 ignored, i.e., they are not required to be up-to-date or clean and they
185 If --index is not specified, then the submodule commits in the patch
186 are ignored and only the absence of presence of the corresponding
187 subdirectory is checked and (if possible) updated.
191 Written by Linus Torvalds <torvalds@osdl.org>
195 Documentation by Junio C Hamano
199 Part of the gitlink:git[7] suite