git-multi-pack-index(1) — Linux manual page


GIT-MULTI-PACK-IN(1)           Git Manual           GIT-MULTI-PACK-IN(1)

NAME         top

       git-multi-pack-index - Write and verify multi-pack-indexes

SYNOPSIS         top

       git multi-pack-index [--object-dir=<dir>] [--[no-]progress]
               [--preferred-pack=<pack>] <subcommand>

DESCRIPTION         top

       Write or verify a multi-pack-index (MIDX) file.

OPTIONS         top

           Use given directory for the location of Git objects. We check
           <dir>/packs/multi-pack-index for the current MIDX file, and
           <dir>/packs for the pack-files to index.

           Turn progress on/off explicitly. If neither is specified,
           progress is shown if standard error is connected to a

       The following subcommands are available:

           Write a new MIDX file. The following options are available
           for the write sub-command:

               Optionally specify the tie-breaking pack used when
               multiple packs contain the same object. If not given,
               ties are broken in favor of the pack with the lowest

           Verify the contents of the MIDX file.

           Delete the pack-files that are tracked by the MIDX file, but
           have no objects referenced by the MIDX. Rewrite the MIDX file
           afterward to remove all references to these pack-files.

           Create a new pack-file containing objects in small pack-files
           referenced by the multi-pack-index. If the size given by the
           --batch-size=<size> argument is zero, then create a pack
           containing all objects referenced by the multi-pack-index.
           For a non-zero batch size, Select the pack-files by examining
           packs from oldest-to-newest, computing the "expected size" by
           counting the number of objects in the pack referenced by the
           multi-pack-index, then divide by the total number of objects
           in the pack and multiply by the pack size. We select packs
           with expected size below the batch size until the set of
           packs have total expected size at least the batch size, or
           all pack-files are considered. If only one pack-file is
           selected, then do nothing. If a new pack-file is created,
           rewrite the multi-pack-index to reference the new pack-file.
           A later run of git multi-pack-index expire will delete the
           pack-files that were part of this batch.

           If repack.packKeptObjects is false, then any pack-files with
           an associated .keep file will not be selected for the batch
           to repack.

EXAMPLES         top

       •   Write a MIDX file for the packfiles in the current .git

               $ git multi-pack-index write

       •   Write a MIDX file for the packfiles in an alternate object

               $ git multi-pack-index --object-dir <alt> write

       •   Verify the MIDX file for the packfiles in the current .git

               $ git multi-pack-index verify

SEE ALSO         top

       See The Multi-Pack-Index Design Document[1] and The
       Multi-Pack-Index Format[2] for more information on the
       multi-pack-index feature.

GIT         top

       Part of the git(1) suite

NOTES         top

        1. The Multi-Pack-Index Design Document

        2. The Multi-Pack-Index Format

COLOPHON         top

       This page is part of the git (Git distributed version control
       system) project.  Information about the project can be found at
       ⟨⟩.  If you have a bug report for this manual
       page, see ⟨⟩.  This page was obtained
       from the project's upstream Git repository
       ⟨⟩ on 2021-08-27.  (At that time,
       the date of the most recent commit that was found in the
       repository was 2021-08-24.)  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

Git         08/27/2021           GIT-MULTI-PACK-IN(1)

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