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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | NOTES | GIT | COLOPHON |
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GIT-INDEX-PACK(1) Git Manual GIT-INDEX-PACK(1)
git-index-pack - Build pack index file for an existing packed
archive
git index-pack [-v] [-o <index-file>] <pack-file>
git index-pack --stdin [--fix-thin] [--keep] [-v] [-o <index-file>]
[<pack-file>]
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.
-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.
--check-self-contained-and-connected
Die if the pack contains broken links. For internal use only.
--fsck-objects
Die if the pack contains broken objects. For internal use
only.
--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.
--max-input-size=<size>
Die, if the pack is larger than <size>.
--object-format=<hash-algorithm>
Specify the given object format (hash algorithm) for the
pack. The valid values are sha1 and (if enabled) sha256. The
default is the algorithm for the current repository (set by
extensions.objectFormat), or sha1 if no value is set or
outside a repository.
This option cannot be used with --stdin.
THIS OPTION IS EXPERIMENTAL! SHA-256 support is experimental
and still in an early stage. A SHA-256 repository will in
general not be able to share work with "regular" SHA-1
repositories. It should be assumed that, e.g., Git internal
file formats in relation to SHA-256 repositories may change
in backwards-incompatible ways. Only use
--object-format=sha256 for testing purposes.
Once the index has been created, the hash that goes into the name
of the pack/idx file 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.
Part of the git(1) suite
This page is part of the git (Git distributed version control
system) project. Information about the project can be found at
⟨http://git-scm.com/⟩. If you have a bug report for this manual
page, see ⟨http://git-scm.com/community⟩. This page was obtained
from the project's upstream Git repository
⟨https://github.com/git/git.git⟩ on 2020-12-18. (At that time,
the date of the most recent commit that was found in the
repository was 2020-12-17.) If you discover any rendering
problems in this HTML version of the page, or you believe there
is a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
man-pages@man7.org
Git 2.30.0.rc0.82.gb 12/18/2020 GIT-INDEX-PACK(1)
Pages that refer to this page: git(1), git-config(1), git-pack-objects(1), git-show-index(1)
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