1 git-repack(1)
2 =============
4 NAME
5 ----
6 git-repack - Pack unpacked objects in a repository
9 SYNOPSIS
10 --------
11 'git-repack' [-a] [-d] [-f] [-l] [-n] [-q] [--window=N] [--depth=N]
13 DESCRIPTION
14 -----------
16 This script is used to combine all objects that do not currently
17 reside in a "pack", into a pack. It can also be used to re-organize
18 existing packs into a single, more efficient pack.
20 A pack is a collection of objects, individually compressed, with
21 delta compression applied, stored in a single file, with an
22 associated index file.
24 Packs are used to reduce the load on mirror systems, backup
25 engines, disk storage, etc.
27 OPTIONS
28 -------
30 -a::
31 Instead of incrementally packing the unpacked objects,
32 pack everything referenced into a single pack.
33 Especially useful when packing a repository that is used
34 for private development and there is no need to worry
35 about people fetching via dumb protocols from it. Use
36 with '-d'. This will clean up the objects that `git prune`
37 leaves behind, but `git fsck --full` shows as
38 dangling.
40 -d::
41 After packing, if the newly created packs make some
42 existing packs redundant, remove the redundant packs.
43 Also runs linkgit:git-prune-packed[1].
45 -l::
46 Pass the `--local` option to `git pack-objects`, see
47 linkgit:git-pack-objects[1].
49 -f::
50 Pass the `--no-reuse-delta` option to `git pack-objects`, see
51 linkgit:git-pack-objects[1].
53 -q::
54 Pass the `-q` option to `git pack-objects`, see
55 linkgit:git-pack-objects[1].
57 -n::
58 Do not update the server information with
59 `git update-server-info`. This option skips
60 updating local catalog files needed to publish
61 this repository (or a direct copy of it)
62 over HTTP or FTP. See gitlink:git-update-server-info[1].
64 --window=[N], --depth=[N]::
65 These two options affect how the objects contained in the pack are
66 stored using delta compression. The objects are first internally
67 sorted by type, size and optionally names and compared against the
68 other objects within `--window` to see if using delta compression saves
69 space. `--depth` limits the maximum delta depth; making it too deep
70 affects the performance on the unpacker side, because delta data needs
71 to be applied that many times to get to the necessary object.
72 The default value for --window is 10 and --depth is 50.
74 --window-memory=[N]::
75 This option provides an additional limit on top of `--window`;
76 the window size will dynamically scale down so as to not take
77 up more than N bytes in memory. This is useful in
78 repositories with a mix of large and small objects to not run
79 out of memory with a large window, but still be able to take
80 advantage of the large window for the smaller objects. The
81 size can be suffixed with "k", "m", or "g".
82 `--window-memory=0` makes memory usage unlimited, which is the
83 default.
85 --max-pack-size=<n>::
86 Maximum size of each output packfile, expressed in MiB.
87 If specified, multiple packfiles may be created.
88 The default is unlimited.
91 Configuration
92 -------------
94 When configuration variable `repack.UseDeltaBaseOffset` is set
95 for the repository, the command passes `--delta-base-offset`
96 option to `git-pack-objects`; this typically results in slightly
97 smaller packs, but the generated packs are incompatible with
98 versions of git older than (and including) v1.4.3; do not set
99 the variable in a repository that older version of git needs to
100 be able to read (this includes repositories from which packs can
101 be copied out over http or rsync, and people who obtained packs
102 that way can try to use older git with it).
105 Author
106 ------
107 Written by Linus Torvalds <torvalds@osdl.org>
109 Documentation
110 --------------
111 Documentation by Ryan Anderson <ryan@michonline.com>
113 See Also
114 --------
115 linkgit:git-pack-objects[1]
116 linkgit:git-prune-packed[1]
118 GIT
119 ---
120 Part of the linkgit:git[7] suite