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117 lines
3.6 KiB
117 lines
3.6 KiB
git-repack(1) |
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============= |
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NAME |
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---- |
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git-repack - Pack unpacked objects in a repository |
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SYNOPSIS |
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-------- |
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'git-repack' [-a] [-d] [-f] [-l] [-n] [-q] [--window=N] [--depth=N] |
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DESCRIPTION |
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----------- |
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This script is used to combine all objects that do not currently |
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reside in a "pack", into a pack. It can also be used to re-organize |
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existing packs into a single, more efficient pack. |
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A pack is a collection of objects, individually compressed, with |
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delta compression applied, stored in a single file, with an |
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associated index file. |
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Packs are used to reduce the load on mirror systems, backup |
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engines, disk storage, etc. |
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OPTIONS |
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------- |
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-a:: |
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Instead of incrementally packing the unpacked objects, |
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pack everything referenced into a single pack. |
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Especially useful when packing a repository that is used |
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for private development and there is no need to worry |
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about people fetching via dumb protocols from it. Use |
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with '-d'. This will clean up the objects that `git prune` |
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leaves behind, but `git fsck --full` shows as |
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dangling. |
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-d:: |
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After packing, if the newly created packs make some |
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existing packs redundant, remove the redundant packs. |
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Also runs gitlink:git-prune-packed[1]. |
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-l:: |
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Pass the `--local` option to `git pack-objects`, see |
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gitlink:git-pack-objects[1]. |
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-f:: |
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Pass the `--no-reuse-delta` option to `git pack-objects`, see |
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gitlink:git-pack-objects[1]. |
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-q:: |
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Pass the `-q` option to `git pack-objects`, see |
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gitlink:git-pack-objects[1]. |
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-n:: |
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Do not update the server information with |
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`git update-server-info`. |
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--window=[N], --depth=[N]:: |
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These two options affect how the objects contained in the pack are |
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stored using delta compression. The objects are first internally |
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sorted by type, size and optionally names and compared against the |
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other objects within `--window` to see if using delta compression saves |
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space. `--depth` limits the maximum delta depth; making it too deep |
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affects the performance on the unpacker side, because delta data needs |
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to be applied that many times to get to the necessary object. |
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The default value for --window is 10 and --depth is 50. |
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--window-memory=[N]:: |
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This option provides an additional limit on top of `--window`; |
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the window size will dynamically scale down so as to not take |
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up more than N bytes in memory. This is useful in |
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repositories with a mix of large and small objects to not run |
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out of memory with a large window, but still be able to take |
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advantage of the large window for the smaller objects. The |
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size can be suffixed with "k", "m", or "g". |
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`--window-memory=0` makes memory usage unlimited, which is the |
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default. |
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--max-pack-size=<n>:: |
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Maximum size of each output packfile, expressed in MiB. |
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If specified, multiple packfiles may be created. |
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The default is unlimited. |
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Configuration |
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------------- |
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When configuration variable `repack.UseDeltaBaseOffset` is set |
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for the repository, the command passes `--delta-base-offset` |
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option to `git-pack-objects`; this typically results in slightly |
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smaller packs, but the generated packs are incompatible with |
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versions of git older than (and including) v1.4.3; do not set |
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the variable in a repository that older version of git needs to |
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be able to read (this includes repositories from which packs can |
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be copied out over http or rsync, and people who obtained packs |
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that way can try to use older git with it). |
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Author |
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------ |
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Written by Linus Torvalds <torvalds@osdl.org> |
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Documentation |
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-------------- |
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Documentation by Ryan Anderson <ryan@michonline.com> |
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See Also |
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-------- |
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gitlink:git-pack-objects[1] |
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gitlink:git-prune-packed[1] |
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GIT |
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--- |
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Part of the gitlink:git[7] suite
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