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Diffstat (limited to 'Documentation/git-pack-refs.txt')
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diff --git a/Documentation/git-pack-refs.txt b/Documentation/git-pack-refs.txt new file mode 100644 index 0000000000..a20fc7de40 --- /dev/null +++ b/Documentation/git-pack-refs.txt @@ -0,0 +1,66 @@ +git-pack-refs(1) +================ + +NAME +---- +git-pack-refs - Pack heads and tags for efficient repository access + +SYNOPSIS +-------- +'git-pack-refs' [--all] [--no-prune] + +DESCRIPTION +----------- + +Traditionally, tips of branches and tags (collectively known as +'refs') were stored one file per ref under `$GIT_DIR/refs` +directory. While many branch tips tend to be updated often, +most tags and some branch tips are never updated. When a +repository has hundreds or thousands of tags, this +one-file-per-ref format both wastes storage and hurts +performance. + +This command is used to solve the storage and performance +problem by stashing the refs in a single file, +`$GIT_DIR/packed-refs`. When a ref is missing from the +traditional `$GIT_DIR/refs` hierarchy, it is looked up in this +file and used if found. + +Subsequent updates to branches always creates new file under +`$GIT_DIR/refs` hierarchy. + +A recommended practice to deal with a repository with too many +refs is to pack its refs with `--all --prune` once, and +occasionally run `git-pack-refs \--prune`. Tags are by +definition stationary and are not expected to change. Branch +heads will be packed with the initial `pack-refs --all`, but +only the currently active branch heads will become unpacked, +and next `pack-refs` (without `--all`) will leave them +unpacked. + + +OPTIONS +------- + +\--all:: + +The command by default packs all tags and refs that are already +packed, and leaves other refs +alone. This is because branches are expected to be actively +developed and packing their tips does not help performance. +This option causes branch tips to be packed as well. Useful for +a repository with many branches of historical interests. + +\--no-prune:: + +The command usually removes loose refs under `$GIT_DIR/refs` +hierarchy after packing them. This option tells it not to. + + +Author +------ +Written by Linus Torvalds <torvalds@osdl.org> + +GIT +--- +Part of the gitlink:git[7] suite |