git-show-index(1) — Linux manual page


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

NAME         top

       git-show-index - Show packed archive index

SYNOPSIS         top

       git show-index [--object-format=<hash-algorithm>]

DESCRIPTION         top

       Read the .idx file for a Git packfile (created with
       git-pack-objects(1) or git-index-pack(1)) from the standard
       input, and dump its contents. The output consists of one object
       per line, with each line containing two or three space-separated

       •   the first column is the offset in bytes of the object within
           the corresponding packfile

       •   the second column is the object id of the object

       •   if the index version is 2 or higher, the third column
           contains the CRC32 of the object data

       The objects are output in the order in which they are found in
       the index file, which should be (in a correctly constructed file)
       sorted by object id.

       Note that you can get more information on a packfile by calling
       git-verify-pack(1). However, as this command considers only the
       index file itself, it’s both faster and more flexible.

OPTIONS         top

           Specify the given object format (hash algorithm) for the
           index file. 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..

           Note: At present, there is no interoperability between
           SHA-256 repositories and SHA-1 repositories.

       Historically, we warned that SHA-256 repositories may later need
       backward incompatible changes when we introduce such
       interoperability features. Today, we only expect compatible
       changes. Furthermore, if such changes prove to be necessary, it
       can be expected that SHA-256 repositories created with today’s
       Git will be usable by future versions of Git without data loss.

GIT         top

       Part of the git(1) suite

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 2024-06-14.  (At that time,
       the date of the most recent commit that was found in the
       repository was 2024-06-12.)  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         2024-06-12              GIT-SHOW-INDEX(1)

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