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`. 60 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. 70 71--window-memory=[N]:: 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 80 default. 81 82--max-pack-size=<n>:: 83 Maximum size of each output packfile, expressed in MiB. 84 If specified, multiple packfiles may be created. 85 The default is unlimited. 86 87 88Configuration 89------------- 90 91When configuration variable `repack.UseDeltaBaseOffset` is set 92for the repository, the command passes `--delta-base-offset` 93option to `git-pack-objects`; this typically results in slightly 94smaller packs, but the generated packs are incompatible with 95versions of git older than (and including) v1.4.3; do not set 96the variable in a repository that older version of git needs to 97be able to read (this includes repositories from which packs can 98be copied out over http or rsync, and people who obtained packs 99that way can try to use older git with it). 100 101 102Author 103------ 104Written by Linus Torvalds <torvalds@osdl.org> 105 106Documentation 107-------------- 108Documentation by Ryan Anderson <ryan@michonline.com> 109 110See Also 111-------- 112linkgit:git-pack-objects[1] 113linkgit:git-prune-packed[1] 114 115GIT 116--- 117Part of the linkgit:git[7] suite