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] [-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 -A::
41 Same as `-a`, but any unreachable objects in a previous
42 pack become loose, unpacked objects, instead of being
43 left in the old pack. Unreachable objects are never
44 intentionally added to a pack, even when repacking.
45 When used with '-d', this option
46 prevents unreachable objects from being immediately
47 deleted by way of being left in the old pack and then
48 removed. Instead, the loose unreachable objects
49 will be pruned according to normal expiry rules
50 with the next linkgit:git-gc[1].
52 -d::
53 After packing, if the newly created packs make some
54 existing packs redundant, remove the redundant packs.
55 Also runs linkgit:git-prune-packed[1].
57 -l::
58 Pass the `--local` option to `git pack-objects`, see
59 linkgit:git-pack-objects[1].
61 -f::
62 Pass the `--no-reuse-delta` option to `git pack-objects`, see
63 linkgit:git-pack-objects[1].
65 -q::
66 Pass the `-q` option to `git pack-objects`, see
67 linkgit:git-pack-objects[1].
69 -n::
70 Do not update the server information with
71 `git update-server-info`. This option skips
72 updating local catalog files needed to publish
73 this repository (or a direct copy of it)
74 over HTTP or FTP. See gitlink:git-update-server-info[1].
76 --window=[N]::
77 --depth=[N]::
78 These two options affect how the objects contained in the pack are
79 stored using delta compression. The objects are first internally
80 sorted by type, size and optionally names and compared against the
81 other objects within `--window` to see if using delta compression saves
82 space. `--depth` limits the maximum delta depth; making it too deep
83 affects the performance on the unpacker side, because delta data needs
84 to be applied that many times to get to the necessary object.
85 The default value for --window is 10 and --depth is 50.
87 --window-memory=[N]::
88 This option provides an additional limit on top of `--window`;
89 the window size will dynamically scale down so as to not take
90 up more than N bytes in memory. This is useful in
91 repositories with a mix of large and small objects to not run
92 out of memory with a large window, but still be able to take
93 advantage of the large window for the smaller objects. The
94 size can be suffixed with "k", "m", or "g".
95 `--window-memory=0` makes memory usage unlimited, which is the
96 default.
98 --max-pack-size=<n>::
99 Maximum size of each output packfile, expressed in MiB.
100 If specified, multiple packfiles may be created.
101 The default is unlimited.
104 Configuration
105 -------------
107 When configuration variable `repack.UseDeltaBaseOffset` is set
108 for the repository, the command passes `--delta-base-offset`
109 option to `git-pack-objects`; this typically results in slightly
110 smaller packs, but the generated packs are incompatible with
111 versions of git older than (and including) v1.4.3; do not set
112 the variable in a repository that older version of git needs to
113 be able to read (this includes repositories from which packs can
114 be copied out over http or rsync, and people who obtained packs
115 that way can try to use older git with it).
118 Author
119 ------
120 Written by Linus Torvalds <torvalds@osdl.org>
122 Documentation
123 --------------
124 Documentation by Ryan Anderson <ryan@michonline.com>
126 SEE ALSO
127 --------
128 linkgit:git-pack-objects[1]
129 linkgit:git-prune-packed[1]
131 GIT
132 ---
133 Part of the linkgit:git[1] suite