1GIT-REPACK(1) Git Manual GIT-REPACK(1)
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6 git-repack - Pack unpacked objects in a repository
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9 git-repack [-a] [-d] [-f] [-l] [-n] [-q] [--window=N] [--depth=N]
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12 This script is used to combine all objects that do not currently reside
13 in a "pack", into a pack. It can also be used to re-organize existing
14 packs into a single, more efficient pack.
15 A pack is a collection of objects, individually compressed, with delta
17 compression applied, stored in a single file, with an associated index
18 file.
19 Packs are used to reduce the load on mirror systems, backup engines,
21 disk storage, etc.
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24 -a
25 Instead of incrementally packing the unpacked objects, pack
26 everything referenced into a single pack. Especially useful when
27 packing a repository that is used for private development and there
28 is no need to worry about people fetching via dumb protocols from
29 it. Use with -d. This will clean up the objects that git prune
30 leaves behind, but git fsck --full shows as dangling.
31 -d
33 After packing, if the newly created packs make some existing packs
34 redundant, remove the redundant packs. Also runs git-prune-
35 packed(1).
36 -l
38 Pass the --local option to git pack-objects, see git-pack-
39 objects(1).
40 -f
42 Pass the --no-reuse-delta option to git pack-objects, see git-pack-
43 objects(1).
44 -q
46 Pass the -q option to git pack-objects, see git-pack-objects(1).
47 -n
49 Do not update the server information with git update-server-info.
50 --window=[N], --depth=[N]
52 These two options affect how the objects contained in the pack are
53 stored using delta compression. The objects are first internally
54 sorted by type, size and optionally names and compared against the
55 other objects within --window to see if using delta compression
56 saves space. --depth limits the maximum delta depth; making it too
57 deep affects the performance on the unpacker side, because delta
58 data needs to be applied that many times to get to the necessary
59 object. The default value for --window is 10 and --depth is 50.
60 --window-memory=[N]
62 This option provides an additional limit on top of --window; the
63 window size will dynamically scale down so as to not take up more
64 than N bytes in memory. This is useful in repositories with a mix
65 of large and small objects to not run out of memory with a large
66 window, but still be able to take advantage of the large window for
67 the smaller objects. The size can be suffixed with "k", "m", or
68 "g". --window-memory=0 makes memory usage unlimited, which is the
69 default.
70 --max-pack-size=<n>
72 Maximum size of each output packfile, expressed in MiB. If
73 specified, multiple packfiles may be created. The default is
74 unlimited.
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77 When configuration variable repack.UseDeltaBaseOffset is set for the
78 repository, the command passes --delta-base-offset option to
79 git-pack-objects; this typically results in slightly smaller packs, but
80 the generated packs are incompatible with versions of git older than
81 (and including) v1.4.3; do not set the variable in a repository that
82 older version of git needs to be able to read (this includes
83 repositories from which packs can be copied out over http or rsync, and
84 people who obtained packs that way can try to use older git with it).
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87 Written by Linus Torvalds <torvalds@osdl.org>
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90 Documentation by Ryan Anderson <ryan@michonline.com>
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93 git-pack-objects(1) git-prune-packed(1)
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96 Part of the git(7) suite
97Git 1.5.3.3 10/09/2007 GIT-REPACK(1)