Documentation / git-checkout-index.txton commit trivial: use git-repo-config to detect if the test can be run on the repository (e58b97a)
   1git-checkout-index(1)
   2=====================
   3
   4NAME
   5----
   6git-checkout-index - Copy files from the index to the working directory
   7
   8
   9SYNOPSIS
  10--------
  11'git-checkout-index' [-u] [-q] [-a] [-f] [-n] [--prefix=<string>]
  12        [--stage=<number>] [--] <file>...
  13
  14DESCRIPTION
  15-----------
  16Will copy all files listed from the index to the working directory
  17(not overwriting existing files).
  18
  19OPTIONS
  20-------
  21-u|--index::
  22        update stat information for the checked out entries in
  23        the index file.
  24
  25-q|--quiet::
  26        be quiet if files exist or are not in the index
  27
  28-f|--force::
  29        forces overwrite of existing files
  30
  31-a|--all::
  32        checks out all files in the index.  Cannot be used
  33        together with explicit filenames.
  34
  35-n|--no-create::
  36        Don't checkout new files, only refresh files already checked
  37        out.
  38
  39--prefix=<string>::
  40        When creating files, prepend <string> (usually a directory
  41        including a trailing /)
  42
  43--stage=<number>::
  44        Instead of checking out unmerged entries, copy out the
  45        files from named stage.  <number> must be between 1 and 3.
  46
  47--::
  48        Do not interpret any more arguments as options.
  49
  50The order of the flags used to matter, but not anymore.
  51
  52Just doing `git-checkout-index` does nothing. You probably meant
  53`git-checkout-index -a`. And if you want to force it, you want
  54`git-checkout-index -f -a`.
  55
  56Intuitiveness is not the goal here. Repeatability is. The reason for
  57the "no arguments means no work" behavior is that from scripts you are
  58supposed to be able to do:
  59
  60----------------
  61$ find . -name '*.h' -print0 | xargs -0 git-checkout-index -f --
  62----------------
  63
  64which will force all existing `*.h` files to be replaced with their
  65cached copies. If an empty command line implied "all", then this would
  66force-refresh everything in the index, which was not the point.
  67
  68The `--` is just a good idea when you know the rest will be filenames;
  69it will prevent problems with a filename of, for example,  `-a`.
  70Using `--` is probably a good policy in scripts.
  71
  72
  73EXAMPLES
  74--------
  75To update and refresh only the files already checked out::
  76+
  77----------------
  78$ git-checkout-index -n -f -a && git-update-index --ignore-missing --refresh
  79----------------
  80
  81Using `git-checkout-index` to "export an entire tree"::
  82        The prefix ability basically makes it trivial to use
  83        `git-checkout-index` as an "export as tree" function.
  84        Just read the desired tree into the index, and do:
  85+
  86----------------
  87$ git-checkout-index --prefix=git-export-dir/ -a
  88----------------
  89+
  90`git-checkout-index` will "export" the index into the specified
  91directory.
  92+
  93The final "/" is important. The exported name is literally just
  94prefixed with the specified string.  Contrast this with the
  95following example.
  96
  97Export files with a prefix::
  98+
  99----------------
 100$ git-checkout-index --prefix=.merged- Makefile
 101----------------
 102+
 103This will check out the currently cached copy of `Makefile`
 104into the file `.merged-Makefile`.
 105
 106
 107Author
 108------
 109Written by Linus Torvalds <torvalds@osdl.org>
 110
 111
 112Documentation
 113--------------
 114Documentation by David Greaves,
 115Junio C Hamano and the git-list <git@vger.kernel.org>.
 116
 117
 118GIT
 119---
 120Part of the gitlink:git[7] suite
 121