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.