6 git-repack - Pack unpacked objects in a repository
11 'git-repack' [-a] [-d] [-f] [-l] [-n] [-q] [--window=N] [--depth=N]
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.
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
41 After packing, if the newly created packs make some
42 existing packs redundant, remove the redundant packs.
43 Also runs gitlink:git-prune-packed[1].
46 Pass the `--local` option to `git pack-objects`, see
47 gitlink:git-pack-objects[1].
50 Pass the `--no-reuse-delta` option to `git pack-objects`, see
51 gitlink:git-pack-objects[1].
54 Pass the `-q` option to `git pack-objects`, see
55 gitlink:git-pack-objects[1].
58 Do not update the server information with
59 `git update-server-info`.
61 --window=[N], --depth=[N]::
62 These two options affect how the objects contained in the pack are
63 stored using delta compression. The objects are first internally
64 sorted by type, size and optionally names and compared against the
65 other objects within `--window` to see if using delta compression saves
66 space. `--depth` limits the maximum delta depth; making it too deep
67 affects the performance on the unpacker side, because delta data needs
68 to be applied that many times to get to the necessary object.
69 The default value for --window is 10 and --depth is 50.
72 This option provides an additional limit on top of `--window`;
73 the window size will dynamically scale down so as to not take
74 up more than N bytes in memory. This is useful in
75 repositories with a mix of large and small objects to not run
76 out of memory with a large window, but still be able to take
77 advantage of the large window for the smaller objects. The
78 size can be suffixed with "k", "m", or "g".
79 `--window-memory=0` makes memory usage unlimited, which is the
83 Maximum size of each output packfile, expressed in MiB.
84 If specified, multiple packfiles may be created.
85 The default is unlimited.
91 When configuration variable `repack.UseDeltaBaseOffset` is set
92 for the repository, the command passes `--delta-base-offset`
93 option to `git-pack-objects`; this typically results in slightly
94 smaller packs, but the generated packs are incompatible with
95 versions of git older than (and including) v1.4.3; do not set
96 the variable in a repository that older version of git needs to
97 be able to read (this includes repositories from which packs can
98 be copied out over http or rsync, and people who obtained packs
99 that way can try to use older git with it).
104 Written by Linus Torvalds <torvalds@osdl.org>
108 Documentation by Ryan Anderson <ryan@michonline.com>
112 gitlink:git-pack-objects[1]
113 gitlink:git-prune-packed[1]
117 Part of the gitlink:git[7] suite