1git-apply(1) 2============ 3 4NAME 5---- 6git-apply - Apply a patch on a git index file and a working tree 7 8 9SYNOPSIS 10-------- 11[verse] 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] [--cached] 16 [--whitespace=<nowarn|warn|error|error-all|strip>] 17 [--exclude=PATH] [--verbose] [<patch>...] 18 19DESCRIPTION 20----------- 21Reads supplied diff output and applies it on a git index file 22and a work tree. 23 24OPTIONS 25------- 26<patch>...:: 27 The files to read patch from. '-' can be used to read 28 from the standard input. 29 30--stat:: 31 Instead of applying the patch, output diffstat for the 32 input. Turns off "apply". 33 34--numstat:: 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". 40 41--summary:: 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. 45 Turns off "apply". 46 47--check:: 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". 51 52--index:: 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. 60 61--cached:: 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'. 65 66--build-fake-ancestor <file>:: 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 versions of the blobs is available locally, 71 builds a temporary index containing those blobs. 72+ 73When a pure mode change is encountered (which has no index information), 74the information is read from the current index instead. 75 76-R, --reverse:: 77 Apply the patch in reverse. 78 79--reject:: 80 For atomicity, gitlink:git-apply[1] by default fails the whole patch and 81 does not touch the working tree when some of the hunks 82 do not apply. This option makes it apply 83 the parts of the patch that are applicable, and leave the 84 rejected hunks in corresponding *.rej files. 85 86-z:: 87 When showing the index information, do not munge paths, 88 but use NUL terminated machine readable format. Without 89 this flag, the pathnames output will have TAB, LF, and 90 backslash characters replaced with `\t`, `\n`, and `\\`, 91 respectively. 92 93-p<n>:: 94 Remove <n> leading slashes from traditional diff paths. The 95 default is 1. 96 97-C<n>:: 98 Ensure at least <n> lines of surrounding context match before 99 and after each change. When fewer lines of surrounding 100 context exist they all must match. By default no context is 101 ever ignored. 102 103--unidiff-zero:: 104 By default, gitlink:git-apply[1] expects that the patch being 105 applied is a unified diff with at least one line of context. 106 This provides good safety measures, but breaks down when 107 applying a diff generated with --unified=0. To bypass these 108 checks use '--unidiff-zero'. 109+ 110Note, for the reasons stated above usage of context-free patches are 111discouraged. 112 113--apply:: 114 If you use any of the options marked "Turns off 115 'apply'" above, gitlink:git-apply[1] reads and outputs the 116 information you asked without actually applying the 117 patch. Give this flag after those flags to also apply 118 the patch. 119 120--no-add:: 121 When applying a patch, ignore additions made by the 122 patch. This can be used to extract common part between 123 two files by first running `diff` on them and applying 124 the result with this option, which would apply the 125 deletion part but not addition part. 126 127--allow-binary-replacement, --binary:: 128 Historically we did not allow binary patch applied 129 without an explicit permission from the user, and this 130 flag was the way to do so. Currently we always allow binary 131 patch application, so this is a no-op. 132 133--exclude=<path-pattern>:: 134 Don't apply changes to files matching the given path pattern. This can 135 be useful when importing patchsets, where you want to exclude certain 136 files or directories. 137 138--whitespace=<option>:: 139 When applying a patch, detect a new or modified line 140 that ends with trailing whitespaces (this includes a 141 line that solely consists of whitespaces). By default, 142 the command outputs warning messages and applies the 143 patch. 144 When gitlink:git-apply[1] is used for statistics and not applying a 145 patch, it defaults to `nowarn`. 146 You can use different `<option>` to control this 147 behavior: 148+ 149* `nowarn` turns off the trailing whitespace warning. 150* `warn` outputs warnings for a few such errors, but applies the 151 patch (default). 152* `error` outputs warnings for a few such errors, and refuses 153 to apply the patch. 154* `error-all` is similar to `error` but shows all errors. 155* `strip` outputs warnings for a few such errors, strips out the 156 trailing whitespaces and applies the patch. 157 158--inaccurate-eof:: 159 Under certain circumstances, some versions of diff do not correctly 160 detect a missing new-line at the end of the file. As a result, patches 161 created by such diff programs do not record incomplete lines 162 correctly. This option adds support for applying such patches by 163 working around this bug. 164 165-v, --verbose:: 166 Report progress to stderr. By default, only a message about the 167 current patch being applied will be printed. This option will cause 168 additional information to be reported. 169 170Configuration 171------------- 172 173apply.whitespace:: 174 When no `--whitespace` flag is given from the command 175 line, this configuration item is used as the default. 176 177Submodules 178---------- 179If the patch contains any changes to submodules then gitlink:git-apply[1] 180treats these changes as follows. 181 182If --index is specified (explicitly or implicitly), then the submodule 183commits must match the index exactly for the patch to apply. If any 184of the submodules are checked-out, then these check-outs are completely 185ignored, i.e., they are not required to be up-to-date or clean and they 186are not updated. 187 188If --index is not specified, then the submodule commits in the patch 189are ignored and only the absence of presence of the corresponding 190subdirectory is checked and (if possible) updated. 191 192Author 193------ 194Written by Linus Torvalds <torvalds@osdl.org> 195 196Documentation 197-------------- 198Documentation by Junio C Hamano 199 200GIT 201--- 202Part of the gitlink:git[7] suite