Documentation/git-index-pack.txt

   1 git-index-pack(1)
   2 =================
   3
   4 NAME
   5 ----
   6 git-index-pack - Build pack index file for an existing packed archive
   7
   8
   9 SYNOPSIS
  10 --------
  11 [verse]
  12 'git index-pack' [-v] [-o <index-file>] [--[no-]rev-index] <pack-file>
  13 'git index-pack' --stdin [--fix-thin] [--keep] [-v] [-o <index-file>]
  14                   [--[no-]rev-index] [<pack-file>]
  15
  16
  17 DESCRIPTION
  18 -----------
  19 Reads a packed archive (.pack) from the specified file, and
  20 builds a pack index file (.idx) for it. Optionally writes a
  21 reverse-index (.rev) for the specified pack. The packed
  22 archive together with the pack index can then be placed in
  23 the objects/pack/ directory of a Git repository.
  24
  25
  26 OPTIONS
  27 -------
  28 -v::
  29         Be verbose about what is going on, including progress status.
  30
  31 -o <index-file>::
  32         Write the generated pack index into the specified
  33         file.  Without this option the name of pack index
  34         file is constructed from the name of packed archive
  35         file by replacing .pack with .idx (and the program
  36         fails if the name of packed archive does not end
  37         with .pack).
  38
  39 --[no-]rev-index::
  40         When this flag is provided, generate a reverse index
  41         (a `.rev` file) corresponding to the given pack. If
  42         `--verify` is given, ensure that the existing
  43         reverse index is correct. Takes precedence over
  44         `pack.writeReverseIndex`.
  45
  46 --stdin::
  47         When this flag is provided, the pack is read from stdin
  48         instead and a copy is then written to <pack-file>. If
  49         <pack-file> is not specified, the pack is written to
  50         objects/pack/ directory of the current Git repository with
  51         a default name determined from the pack content.  If
  52         <pack-file> is not specified consider using --keep to
  53         prevent a race condition between this process and
  54         'git repack'.
  55
  56 --fix-thin::
  57         Fix a "thin" pack produced by `git pack-objects --thin` (see
  58         linkgit:git-pack-objects[1] for details) by adding the
  59         excluded objects the deltified objects are based on to the
  60         pack. This option only makes sense in conjunction with --stdin.
  61
  62 --keep::
  63         Before moving the index into its final destination
  64         create an empty .keep file for the associated pack file.
  65         This option is usually necessary with --stdin to prevent a
  66         simultaneous 'git repack' process from deleting
  67         the newly constructed pack and index before refs can be
  68         updated to use objects contained in the pack.
  69
  70 --keep=<msg>::
  71         Like --keep create a .keep file before moving the index into
  72         its final destination, but rather than creating an empty file
  73         place '<msg>' followed by an LF into the .keep file.  The '<msg>'
  74         message can later be searched for within all .keep files to
  75         locate any which have outlived their usefulness.
  76
  77 --index-version=<version>[,<offset>]::
  78         This is intended to be used by the test suite only. It allows
  79         to force the version for the generated pack index, and to force
  80         64-bit index entries on objects located above the given offset.
  81
  82 --strict::
  83         Die, if the pack contains broken objects or links.
  84
  85 --check-self-contained-and-connected::
  86         Die if the pack contains broken links. For internal use only.
  87
  88 --fsck-objects::
  89         For internal use only.
  90 +
  91 Die if the pack contains broken objects. If the pack contains a tree
  92 pointing to a .gitmodules blob that does not exist, prints the hash of
  93 that blob (for the caller to check) after the hash that goes into the
  94 name of the pack/idx file (see "Notes").
  95
  96 --threads=<n>::
  97         Specifies the number of threads to spawn when resolving
  98         deltas. This requires that index-pack be compiled with
  99         pthreads otherwise this option is ignored with a warning.
 100         This is meant to reduce packing time on multiprocessor
 101         machines. The required amount of memory for the delta search
 102         window is however multiplied by the number of threads.
 103         Specifying 0 will cause Git to auto-detect the number of CPU's
 104         and use maximum 3 threads.
 105
 106 --max-input-size=<size>::
 107         Die, if the pack is larger than <size>.
 108
 109 --object-format=<hash-algorithm>::
 110         Specify the given object format (hash algorithm) for the pack.  The valid
 111         values are 'sha1' and (if enabled) 'sha256'.  The default is the algorithm for
 112         the current repository (set by `extensions.objectFormat`), or 'sha1' if no
 113         value is set or outside a repository.
 114 +
 115 This option cannot be used with --stdin.
 116 +
 117 include::object-format-disclaimer.txt[]
 118
 119 NOTES
 120 -----
 121
 122 Once the index has been created, the hash that goes into the name of
 123 the pack/idx file is printed to stdout. If --stdin was
 124 also used then this is prefixed by either "pack\t", or "keep\t" if a
 125 new .keep file was successfully created. This is useful to remove a
 126 .keep file used as a lock to prevent the race with 'git repack'
 127 mentioned above.
 128
 129 GIT
 130 ---
 131 Part of the linkgit:git[1] suite