1 git-repack(1)
2 =============
4 NAME
5 ----
6 git-repack - Pack unpacked objects in a repository
9 SYNOPSIS
10 --------
11 'git repack' [-a] [-A] [-d] [-f] [-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. Use
35 with '-d'. This will clean up the objects that `git prune`
36 leaves behind, but `git fsck --full` shows as
37 dangling.
38 +
39 Note that users fetching over dumb protocols will have to fetch the
40 whole new pack in order to get any contained object, no matter how many
41 other objects in that pack they already have locally.
43 -A::
44 Same as `-a`, unless '-d' is used. Then any unreachable
45 objects in a previous pack become loose, unpacked objects,
46 instead of being left in the old pack. Unreachable objects
47 are never intentionally added to a pack, even when repacking.
48 This option prevents unreachable objects from being immediately
49 deleted by way of being left in the old pack and then
50 removed. Instead, the loose unreachable objects
51 will be pruned according to normal expiry rules
52 with the next 'git gc' invocation. See linkgit:git-gc[1].
54 -d::
55 After packing, if the newly created packs make some
56 existing packs redundant, remove the redundant packs.
57 Also run 'git prune-packed' to remove redundant
58 loose object files.
60 -l::
61 Pass the `--local` option to 'git pack-objects'. See
62 linkgit:git-pack-objects[1].
64 -f::
65 Pass the `--no-reuse-delta` option to `git-pack-objects`, see
66 linkgit:git-pack-objects[1].
68 -F::
69 Pass the `--no-reuse-object` option to `git-pack-objects`, see
70 linkgit:git-pack-objects[1].
72 -q::
73 Pass the `-q` option to 'git pack-objects'. See
74 linkgit:git-pack-objects[1].
76 -n::
77 Do not update the server information with
78 'git update-server-info'. This option skips
79 updating local catalog files needed to publish
80 this repository (or a direct copy of it)
81 over HTTP or FTP. See linkgit:git-update-server-info[1].
83 --window=<n>::
84 --depth=<n>::
85 These two options affect how the objects contained in the pack are
86 stored using delta compression. The objects are first internally
87 sorted by type, size and optionally names and compared against the
88 other objects within `--window` to see if using delta compression saves
89 space. `--depth` limits the maximum delta depth; making it too deep
90 affects the performance on the unpacker side, because delta data needs
91 to be applied that many times to get to the necessary object.
92 The default value for --window is 10 and --depth is 50.
94 --window-memory=<n>::
95 This option provides an additional limit on top of `--window`;
96 the window size will dynamically scale down so as to not take
97 up more than '<n>' bytes in memory. This is useful in
98 repositories with a mix of large and small objects to not run
99 out of memory with a large window, but still be able to take
100 advantage of the large window for the smaller objects. The
101 size can be suffixed with "k", "m", or "g".
102 `--window-memory=0` makes memory usage unlimited, which is the
103 default.
105 --max-pack-size=<n>::
106 Maximum size of each output pack file. The size can be suffixed with
107 "k", "m", or "g". The minimum size allowed is limited to 1 MiB.
108 If specified, multiple packfiles may be created.
109 The default is unlimited, unless the config variable
110 `pack.packSizeLimit` is set.
113 Configuration
114 -------------
116 By default, the command passes `--delta-base-offset` option to
117 'git pack-objects'; this typically results in slightly smaller packs,
118 but the generated packs are incompatible with versions of Git older than
119 version 1.4.4. If you need to share your repository with such ancient Git
120 versions, either directly or via the dumb http or rsync protocol, then you
121 need to set the configuration variable `repack.UseDeltaBaseOffset` to
122 "false" and repack. Access from old Git versions over the native protocol
123 is unaffected by this option as the conversion is performed on the fly
124 as needed in that case.
127 Author
128 ------
129 Written by Linus Torvalds <torvalds@osdl.org>
131 Documentation
132 --------------
133 Documentation by Ryan Anderson <ryan@michonline.com>
135 SEE ALSO
136 --------
137 linkgit:git-pack-objects[1]
138 linkgit:git-prune-packed[1]
140 GIT
141 ---
142 Part of the linkgit:git[1] suite