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GIT-INDEX-PACK(1)                                Git Manual                                GIT-INDEX-PACK(1)



NAME
       git-index-pack - Build pack index file for an existing packed archive

SYNOPSIS
       git index-pack [-v] [-o <index-file>] <pack-file>
       git index-pack --stdin [--fix-thin] [--keep] [-v] [-o <index-file>]
                        [<pack-file>]


DESCRIPTION
       Reads a packed archive (.pack) from the specified file, and builds a pack index file (.idx) for it.
       The packed archive together with the pack index can then be placed in the objects/pack/ directory of
       a Git repository.

OPTIONS
       -v
           Be verbose about what is going on, including progress status.

       -o <index-file>
           Write the generated pack index into the specified file. Without this option the name of pack
           index file is constructed from the name of packed archive file by replacing .pack with .idx (and
           the program fails if the name of packed archive does not end with .pack).

       --stdin
           When this flag is provided, the pack is read from stdin instead and a copy is then written to
           <pack-file>. If <pack-file> is not specified, the pack is written to objects/pack/ directory of
           the current Git repository with a default name determined from the pack content. If <pack-file>
           is not specified consider using --keep to prevent a race condition between this process and git
           repack.

       --fix-thin
           Fix a "thin" pack produced by git pack-objects --thin (see git-pack-objects(1) for details) by
           adding the excluded objects the deltified objects are based on to the pack. This option only
           makes sense in conjunction with --stdin.

       --keep
           Before moving the index into its final destination create an empty .keep file for the associated
           pack file. This option is usually necessary with --stdin to prevent a simultaneous git repack
           process from deleting the newly constructed pack and index before refs can be updated to use
           objects contained in the pack.

       --keep=<msg>
           Like --keep create a .keep file before moving the index into its final destination, but rather
           than creating an empty file place <msg> followed by an LF into the .keep file. The <msg> message
           can later be searched for within all .keep files to locate any which have outlived their
           usefulness.

       --index-version=<version>[,<offset>]
           This is intended to be used by the test suite only. It allows to force the version for the
           generated pack index, and to force 64-bit index entries on objects located above the given
           offset.

       --strict
           Die, if the pack contains broken objects or links.

       --threads=<n>
           Specifies the number of threads to spawn when resolving deltas. This requires that index-pack be
           compiled with pthreads otherwise this option is ignored with a warning. This is meant to reduce
           packing time on multiprocessor machines. The required amount of memory for the delta search
           window is however multiplied by the number of threads. Specifying 0 will cause Git to auto-detect
           the number of CPU's and use maximum 3 threads.

NOTE
       Once the index has been created, the list of object names is sorted and the SHA-1 hash of that list
       is printed to stdout. If --stdin was also used then this is prefixed by either "pack\t", or "keep\t"
       if a new .keep file was successfully created. This is useful to remove a .keep file used as a lock to
       prevent the race with git repack mentioned above.

GIT
       Part of the git(1) suite



Git 1.8.3                                        05/24/2013                                GIT-INDEX-PACK(1)