6 git-repack - Pack unpacked objects in a repository
11 'git-repack' [-a] [-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 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].
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].
58 Pass the `--local` option to `git pack-objects`, see
59 linkgit:git-pack-objects[1].
62 Pass the `--no-reuse-delta` option to `git pack-objects`, see
63 linkgit:git-pack-objects[1].
66 Pass the `-q` option to `git pack-objects`, see
67 linkgit:git-pack-objects[1].
70 Do not update the server information with
71 `git update-server-info`.
73 --window=[N], --depth=[N]::
74 These two options affect how the objects contained in the pack are
75 stored using delta compression. The objects are first internally
76 sorted by type, size and optionally names and compared against the
77 other objects within `--window` to see if using delta compression saves
78 space. `--depth` limits the maximum delta depth; making it too deep
79 affects the performance on the unpacker side, because delta data needs
80 to be applied that many times to get to the necessary object.
81 The default value for --window is 10 and --depth is 50.
84 This option provides an additional limit on top of `--window`;
85 the window size will dynamically scale down so as to not take
86 up more than N bytes in memory. This is useful in
87 repositories with a mix of large and small objects to not run
88 out of memory with a large window, but still be able to take
89 advantage of the large window for the smaller objects. The
90 size can be suffixed with "k", "m", or "g".
91 `--window-memory=0` makes memory usage unlimited, which is the
95 Maximum size of each output packfile, expressed in MiB.
96 If specified, multiple packfiles may be created.
97 The default is unlimited.
103 When configuration variable `repack.UseDeltaBaseOffset` is set
104 for the repository, the command passes `--delta-base-offset`
105 option to `git-pack-objects`; this typically results in slightly
106 smaller packs, but the generated packs are incompatible with
107 versions of git older than (and including) v1.4.3; do not set
108 the variable in a repository that older version of git needs to
109 be able to read (this includes repositories from which packs can
110 be copied out over http or rsync, and people who obtained packs
111 that way can try to use older git with it).
116 Written by Linus Torvalds <torvalds@osdl.org>
120 Documentation by Ryan Anderson <ryan@michonline.com>
124 linkgit:git-pack-objects[1]
125 linkgit:git-prune-packed[1]
129 Part of the linkgit:git[7] suite