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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 in a (sub)directory 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
   storing the refs in a single file, $GIT_DIR/packed-refs. When a ref is
   missing from the traditional $GIT_DIR/refs directory hierarchy, it is
   looked up in this file and used if found.

   Subsequent updates to branches always create new files under
   $GIT_DIR/refs directory hierarchy.

   A recommended practice to deal with a repository with too many refs is
   to pack its refs with --all once, and occasionally run git pack-refs.
   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 the 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.

BUGS

   Older documentation written before the packed-refs mechanism was
   introduced may still say things like ".git/refs/heads/<branch> file
   exists" when it means "branch <branch> exists".

GIT

   Part of the git(1) suite



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