1git-repack(1) 2============= 3 4NAME 5---- 6git-repack - Pack unpacked objects in a repository 7 8 9SYNOPSIS 10-------- 11'git-repack' [-a] [-d] [-f] [-l] [-n] [-q] [--window=N] [--depth=N] 12 13DESCRIPTION 14----------- 15 16This script is used to combine all objects that do not currently 17reside in a "pack", into a pack. It can also be used to re-organize 18existing packs into a single, more efficient pack. 19 20A pack is a collection of objects, individually compressed, with 21delta compression applied, stored in a single file, with an 22associated index file. 23 24Packs are used to reduce the load on mirror systems, backup 25engines, disk storage, etc. 26 27OPTIONS 28------- 29 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. 39 40-d:: 41 After packing, if the newly created packs make some 42 existing packs redundant, remove the redundant packs. 43 Also runs linkgit:git-prune-packed[1]. 44 45-l:: 46 Pass the `--local` option to `git pack-objects`, see 47 linkgit:git-pack-objects[1]. 48 49-f:: 50 Pass the `--no-reuse-delta` option to `git pack-objects`, see 51 linkgit:git-pack-objects[1]. 52 53-q:: 54 Pass the `-q` option to `git pack-objects`, see 55 linkgit:git-pack-objects[1]. 56 57-n:: 58 Do not update the server information with 59 `git update-server-info`. This option skips 60 updating local catalog files needed to publish 61 this repository (or a direct copy of it) 62 over HTTP or FTP. See gitlink:git-update-server-info[1]. 63 64--window=[N], --depth=[N]:: 65 These two options affect how the objects contained in the pack are 66 stored using delta compression. The objects are first internally 67 sorted by type, size and optionally names and compared against the 68 other objects within `--window` to see if using delta compression saves 69 space. `--depth` limits the maximum delta depth; making it too deep 70 affects the performance on the unpacker side, because delta data needs 71 to be applied that many times to get to the necessary object. 72 The default value for --window is 10 and --depth is 50. 73 74--window-memory=[N]:: 75 This option provides an additional limit on top of `--window`; 76 the window size will dynamically scale down so as to not take 77 up more than N bytes in memory. This is useful in 78 repositories with a mix of large and small objects to not run 79 out of memory with a large window, but still be able to take 80 advantage of the large window for the smaller objects. The 81 size can be suffixed with "k", "m", or "g". 82 `--window-memory=0` makes memory usage unlimited, which is the 83 default. 84 85--max-pack-size=<n>:: 86 Maximum size of each output packfile, expressed in MiB. 87 If specified, multiple packfiles may be created. 88 The default is unlimited. 89 90 91Configuration 92------------- 93 94When configuration variable `repack.UseDeltaBaseOffset` is set 95for the repository, the command passes `--delta-base-offset` 96option to `git-pack-objects`; this typically results in slightly 97smaller packs, but the generated packs are incompatible with 98versions of git older than (and including) v1.4.3; do not set 99the variable in a repository that older version of git needs to 100be able to read (this includes repositories from which packs can 101be copied out over http or rsync, and people who obtained packs 102that way can try to use older git with it). 103 104 105Author 106------ 107Written by Linus Torvalds <torvalds@osdl.org> 108 109Documentation 110-------------- 111Documentation by Ryan Anderson <ryan@michonline.com> 112 113See Also 114-------- 115linkgit:git-pack-objects[1] 116linkgit:git-prune-packed[1] 117 118GIT 119--- 120Part of the linkgit:git[7] suite