Documentation / git-apply.txton commit git-svn: recommend rebase for syncing against an SVN repo (2e93115)
   1git-apply(1)
   2============
   3
   4NAME
   5----
   6git-apply - Apply patch on a git index file and a work tree
   7
   8
   9SYNOPSIS
  10--------
  11[verse]
  12'git-apply' [--stat] [--numstat] [--summary] [--check] [--index] [--apply]
  13          [--no-add] [--index-info] [--allow-binary-replacement | --binary]
  14          [-R | --reverse] [--reject] [-z] [-pNUM] [-CNUM] [--inaccurate-eof]
  15          [--whitespace=<nowarn|warn|error|error-all|strip>] [--exclude=PATH]
  16          [--cached] [--verbose] [<patch>...]
  17
  18DESCRIPTION
  19-----------
  20Reads supplied diff output and applies it on a git index file
  21and a work tree.
  22
  23OPTIONS
  24-------
  25<patch>...::
  26        The files to read patch from.  '-' can be used to read
  27        from the standard input.
  28
  29--stat::
  30        Instead of applying the patch, output diffstat for the
  31        input.  Turns off "apply".
  32
  33--numstat::
  34        Similar to \--stat, but shows number of added and
  35        deleted lines in decimal notation and pathname without
  36        abbreviation, to make it more machine friendly.  Turns
  37        off "apply".
  38
  39--summary::
  40        Instead of applying the patch, output a condensed
  41        summary of information obtained from git diff extended
  42        headers, such as creations, renames and mode changes.
  43        Turns off "apply".
  44
  45--check::
  46        Instead of applying the patch, see if the patch is
  47        applicable to the current work tree and/or the index
  48        file and detects errors.  Turns off "apply".
  49
  50--index::
  51        When --check is in effect, or when applying the patch
  52        (which is the default when none of the options that
  53        disables it is in effect), make sure the patch is
  54        applicable to what the current index file records.  If
  55        the file to be patched in the work tree is not
  56        up-to-date, it is flagged as an error.  This flag also
  57        causes the index file to be updated.
  58
  59--cached::
  60        Apply a patch without touching the working tree. Instead, take the
  61        cached data, apply the patch, and store the result in the index,
  62        without using the working tree. This implies '--index'.
  63
  64--index-info::
  65        Newer git-diff output has embedded 'index information'
  66        for each blob to help identify the original version that
  67        the patch applies to.  When this flag is given, and if
  68        the original version of the blob is available locally,
  69        outputs information about them to the standard output.
  70
  71-R, --reverse::
  72        Apply the patch in reverse.
  73
  74--reject::
  75        For atomicity, gitlink:git-apply[1] by default fails the whole patch and
  76        does not touch the working tree when some of the hunks
  77        do not apply.  This option makes it apply
  78        the parts of the patch that are applicable, and send the
  79        rejected hunks to the standard output of the command.
  80
  81-z::
  82        When showing the index information, do not munge paths,
  83        but use NUL terminated machine readable format.  Without
  84        this flag, the pathnames output will have TAB, LF, and
  85        backslash characters replaced with `\t`, `\n`, and `\\`,
  86        respectively.
  87
  88-p<n>::
  89        Remove <n> leading slashes from traditional diff paths. The
  90        default is 1.
  91
  92-C<n>::
  93        Ensure at least <n> lines of surrounding context match before
  94        and after each change.  When fewer lines of surrounding
  95        context exist they all must match.  By default no context is
  96        ever ignored.
  97
  98--apply::
  99        If you use any of the options marked "Turns off
 100        'apply'" above, gitlink:git-apply[1] reads and outputs the
 101        information you asked without actually applying the
 102        patch.  Give this flag after those flags to also apply
 103        the patch.
 104
 105--no-add::
 106        When applying a patch, ignore additions made by the
 107        patch.  This can be used to extract common part between
 108        two files by first running `diff` on them and applying
 109        the result with this option, which would apply the
 110        deletion part but not addition part.
 111
 112--allow-binary-replacement, --binary::
 113        When applying a patch, which is a git-enhanced patch
 114        that was prepared to record the pre- and post-image object
 115        name in full, and the path being patched exactly matches
 116        the object the patch applies to (i.e. "index" line's
 117        pre-image object name is what is in the working tree),
 118        and the post-image object is available in the object
 119        database, use the post-image object as the patch
 120        result.  This allows binary files to be patched in a
 121        very limited way.
 122
 123--exclude=<path-pattern>::
 124        Don't apply changes to files matching the given path pattern. This can
 125        be useful when importing patchsets, where you want to exclude certain
 126        files or directories.
 127
 128--whitespace=<option>::
 129        When applying a patch, detect a new or modified line
 130        that ends with trailing whitespaces (this includes a
 131        line that solely consists of whitespaces).  By default,
 132        the command outputs warning messages and applies the
 133        patch.
 134        When gitlink:git-apply[1] is used for statistics and not applying a
 135        patch, it defaults to `nowarn`.
 136        You can use different `<option>` to control this
 137        behavior:
 138+
 139* `nowarn` turns off the trailing whitespace warning.
 140* `warn` outputs warnings for a few such errors, but applies the
 141  patch (default).
 142* `error` outputs warnings for a few such errors, and refuses
 143  to apply the patch.
 144* `error-all` is similar to `error` but shows all errors.
 145* `strip` outputs warnings for a few such errors, strips out the
 146  trailing whitespaces and applies the patch.
 147
 148--inacurate-eof::
 149        Under certain circumstances, some versions of diff do not correctly
 150        detect a missing new-line at the end of the file. As a result, patches
 151        created by such diff programs do not record incomplete lines
 152        correctly. This option adds support for applying such patches by
 153        working around this bug.
 154
 155--verbose::
 156        Report progress to stderr. By default, only a message about the
 157        current patch being applied will be printed. This option will cause
 158        additional information to be reported.
 159
 160Configuration
 161-------------
 162
 163apply.whitespace::
 164        When no `--whitespace` flag is given from the command
 165        line, this configuration item is used as the default.
 166
 167
 168Author
 169------
 170Written by Linus Torvalds <torvalds@osdl.org>
 171
 172Documentation
 173--------------
 174Documentation by Junio C Hamano
 175
 176GIT
 177---
 178Part of the gitlink:git[7] suite
 179