Documentation/git-repack.txt

   1 git-repack(1)
   2 =============
   3
   4 NAME
   5 ----
   6 git-repack - Pack unpacked objects in a repository
   7
   8
   9 SYNOPSIS
  10 --------
  11 'git-repack' [-a] [-d] [-f] [-l] [-n] [-q] [--window=N] [--depth=N]
  12
  13 DESCRIPTION
  14 -----------
  15
  16 This script is used to combine all objects that do not currently
  17 reside in a "pack", into a pack.
  18
  19 A pack is a collection of objects, individually compressed, with
  20 delta compression applied, stored in a single file, with an
  21 associated index file.
  22
  23 Packs are used to reduce the load on mirror systems, backup
  24 engines, disk storage, etc.
  25
  26 OPTIONS
  27 -------
  28
  29 -a::
  30         Instead of incrementally packing the unpacked objects,
  31         pack everything available into a single pack.
  32         Especially useful when packing a repository that is used
  33         for private development and there is no need to worry
  34         about people fetching via dumb file transfer protocols
  35         from it.  Use with '-d'.
  36
  37 -d::
  38         After packing, if the newly created packs make some
  39         existing packs redundant, remove the redundant packs.
  40         Also runs gitlink:git-prune-packed[1].
  41
  42 -l::
  43         Pass the `--local` option to `git pack-objects`, see
  44         gitlink:git-pack-objects[1].
  45
  46 -f::
  47         Pass the `--no-reuse-delta` option to `git pack-objects`, see
  48         gitlink:git-pack-objects[1].
  49
  50 -q::
  51         Pass the `-q` option to `git pack-objects`, see
  52         gitlink:git-pack-objects[1].
  53
  54 -n::
  55         Do not update the server information with
  56         `git update-server-info`.
  57
  58 --window=[N], --depth=[N]::
  59         These two options affect how the objects contained in the pack are
  60         stored using delta compression. The objects are first internally
  61         sorted by type, size and optionally names and compared against the
  62         other objects within `--window` to see if using delta compression saves
  63         space. `--depth` limits the maximum delta depth; making it too deep
  64         affects the performance on the unpacker side, because delta data needs
  65         to be applied that many times to get to the necessary object.
  66         The default value for --window is 10 and --depth is 50.
  67
  68 --max-pack-size=<n>::
  69         Maximum size of each output packfile, expressed in MiB.
  70         If specified,  multiple packfiles may be created.
  71         The default is unlimited.
  72
  73
  74 Configuration
  75 -------------
  76
  77 When configuration variable `repack.UseDeltaBaseOffset` is set
  78 for the repository, the command passes `--delta-base-offset`
  79 option to `git-pack-objects`; this typically results in slightly
  80 smaller packs, but the generated packs are incompatible with
  81 versions of git older than (and including) v1.4.3; do not set
  82 the variable in a repository that older version of git needs to
  83 be able to read (this includes repositories from which packs can
  84 be copied out over http or rsync, and people who obtained packs
  85 that way can try to use older git with it).
  86
  87
  88 Author
  89 ------
  90 Written by Linus Torvalds <torvalds@osdl.org>
  91
  92 Documentation
  93 --------------
  94 Documentation by Ryan Anderson <ryan@michonline.com>
  95
  96 See Also
  97 --------
  98 gitlink:git-pack-objects[1]
  99 gitlink:git-prune-packed[1]
 100
 101 GIT
 102 ---
 103 Part of the gitlink:git[7] suite