1GIT-PACK-REFS(1) Git Manual GIT-PACK-REFS(1)
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6 git-pack-refs - Pack heads and tags for efficient repository access
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9 git pack-refs [--all] [--no-prune]
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13 Traditionally, tips of branches and tags (collectively known as refs)
14 were stored one file per ref in a (sub)directory under $GIT_DIR/refs
15 directory. While many branch tips tend to be updated often, most tags
16 and some branch tips are never updated. When a repository has hundreds
17 or thousands of tags, this one-file-per-ref format both wastes storage
18 and hurts performance.
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20 This command is used to solve the storage and performance problem by
21 storing the refs in a single file, $GIT_DIR/packed-refs. When a ref is
22 missing from the traditional $GIT_DIR/refs directory hierarchy, it is
23 looked up in this file and used if found.
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25 Subsequent updates to branches always create new files under
26 $GIT_DIR/refs directory hierarchy.
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28 A recommended practice to deal with a repository with too many refs is
29 to pack its refs with --all once, and occasionally run git pack-refs.
30 Tags are by definition stationary and are not expected to change.
31 Branch heads will be packed with the initial pack-refs --all, but only
32 the currently active branch heads will become unpacked, and the next
33 pack-refs (without --all) will leave them unpacked.
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36 --all
37 The command by default packs all tags and refs that are already
38 packed, and leaves other refs alone. This is because branches are
39 expected to be actively developed and packing their tips does not
40 help performance. This option causes branch tips to be packed as
41 well. Useful for a repository with many branches of historical
42 interests.
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44 --no-prune
45 The command usually removes loose refs under $GIT_DIR/refs
46 hierarchy after packing them. This option tells it not to.
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49 Older documentation written before the packed-refs mechanism was
50 introduced may still say things like ".git/refs/heads/<branch> file
51 exists" when it means "branch <branch> exists".
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54 Part of the git(1) suite
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58Git 2.20.1 12/15/2018 GIT-PACK-REFS(1)