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

       git-pack-objects - Create a packed archive of objects

       git pack-objects [-q | --progress | --all-progress] [--all-progress-implied]
               [--no-reuse-delta] [--delta-base-offset] [--non-empty]
               [--local] [--incremental] [--window=<n>] [--depth=<n>]
               [--revs [--unpacked | --all]]
               [--stdout [--filter=<filter-spec>] | base-name]
               [--shallow] [--keep-true-parents] < object-list

       Reads list of objects from the standard input, and writes either one or
       more packed archives with the specified base-name to disk, or a packed
       archive to the standard output.

       A packed archive is an efficient way to transfer a set of objects
       between two repositories as well as an access efficient archival
       format. In a packed archive, an object is either stored as a compressed
       whole or as a difference from some other object. The latter is often
       called a delta.

       The packed archive format (.pack) is designed to be self-contained so
       that it can be unpacked without any further information. Therefore,
       each object that a delta depends upon must be present within the pack.

       A pack index file (.idx) is generated for fast, random access to the
       objects in the pack. Placing both the index file (.idx) and the packed
       archive (.pack) in the pack/ subdirectory of $GIT_OBJECT_DIRECTORY (or
       any of the directories on $GIT_ALTERNATE_OBJECT_DIRECTORIES) enables
       Git to read from the pack archive.

       The git unpack-objects command can read the packed archive and expand
       the objects contained in the pack into "one-file one-object" format;
       this is typically done by the smart-pull commands when a pack is
       created on-the-fly for efficient network transport by their peers.

           Write into pairs of files (.pack and .idx), using <base-name> to
           determine the name of the created file. When this option is used,
           the two files in a pair are written in
           <base-name>-<SHA-1>.{pack,idx} files. <SHA-1> is a hash based on
           the pack content and is written to the standard output of the

           Write the pack contents (what would have been written to .pack
           file) out to the standard output.

           Read the revision arguments from the standard input, instead of
           individual object names. The revision arguments are processed the
           same way as git rev-list with the --objects flag uses its commit
           arguments to build the list of objects it outputs. The objects on
           the resulting list are packed. Besides revisions, --not or
           --shallow <SHA-1> lines are also accepted.

           This implies --revs. When processing the list of revision arguments
           read from the standard input, limit the objects packed to those
           that are not already packed.

           This implies --revs. In addition to the list of revision arguments
           read from the standard input, pretend as if all refs under refs/
           are specified to be included.

           Include unasked-for annotated tags if the object they reference was
           included in the resulting packfile. This can be useful to send new
           tags to native Git clients.

       --window=<n>, --depth=<n>
           These two options affect how the objects contained in the pack are
           stored using delta compression. The objects are first internally
           sorted by type, size and optionally names and compared against the
           other objects within --window to see if using delta compression
           saves space. --depth limits the maximum delta depth; making it too
           deep affects the performance on the unpacker side, because delta
           data needs to be applied that many times to get to the necessary
           object. The default value for --window is 10 and --depth is 50.

           This option provides an additional limit on top of --window; the
           window size will dynamically scale down so as to not take up more
           than <n> bytes in memory. This is useful in repositories with a mix
           of large and small objects to not run out of memory with a large
           window, but still be able to take advantage of the large window for
           the smaller objects. The size can be suffixed with "k", "m", or
           "g".  --window-memory=0 makes memory usage unlimited. The default
           is taken from the pack.windowMemory configuration variable.

           In unusual scenarios, you may not be able to create files larger
           than a certain size on your filesystem, and this option can be used
           to tell the command to split the output packfile into multiple
           independent packfiles, each not larger than the given size. The
           size can be suffixed with "k", "m", or "g". The minimum size
           allowed is limited to 1 MiB. This option prevents the creation of a
           bitmap index. The default is unlimited, unless the config variable
           pack.packSizeLimit is set.

           This flag causes an object already in a local pack that has a .keep
           file to be ignored, even if it would have otherwise been packed.

           This flag causes an object already in a pack to be ignored even if
           it would have otherwise been packed.

           This flag causes an object that is borrowed from an alternate
           object store to be ignored even if it would have otherwise been

           Only create a packed archive if it would contain at least one

           Progress status is reported on the standard error stream by default
           when it is attached to a terminal, unless -q is specified. This
           flag forces progress status even if the standard error stream is
           not directed to a terminal.

           When --stdout is specified then progress report is displayed during
           the object count and compression phases but inhibited during the
           write-out phase. The reason is that in some cases the output stream
           is directly linked to another command which may wish to display
           progress status of its own as it processes incoming pack data. This
           flag is like --progress except that it forces progress report for
           the write-out phase as well even if --stdout is used.

           This is used to imply --all-progress whenever progress display is
           activated. Unlike --all-progress this flag doesn't actually force
           any progress display by itself.

           This flag makes the command not to report its progress on the
           standard error stream.

           When creating a packed archive in a repository that has existing
           packs, the command reuses existing deltas. This sometimes results
           in a slightly suboptimal pack. This flag tells the command not to
           reuse existing deltas but compute them from scratch.

           This flag tells the command not to reuse existing object data at
           all, including non deltified object, forcing recompression of
           everything. This implies --no-reuse-delta. Useful only in the
           obscure case where wholesale enforcement of a different compression
           level on the packed data is desired.

           Specifies compression level for newly-compressed data in the
           generated pack. If not specified, pack compression level is
           determined first by pack.compression, then by core.compression, and
           defaults to -1, the zlib default, if neither is set. Add
           --no-reuse-object if you want to force a uniform compression level
           on all data no matter the source.

           Create a "thin" pack by omitting the common objects between a
           sender and a receiver in order to reduce network transfer. This
           option only makes sense in conjunction with --stdout.

           Note: A thin pack violates the packed archive format by omitting
           required objects and is thus unusable by Git without making it
           self-contained. Use git index-pack --fix-thin (see git-index-
           pack(1)) to restore the self-contained property.

           Optimize a pack that will be provided to a client with a shallow
           repository. This option, combined with --thin, can result in a
           smaller pack at the cost of speed.

           A packed archive can express the base object of a delta as either a
           20-byte object name or as an offset in the stream, but ancient
           versions of Git don't understand the latter. By default, git
           pack-objects only uses the former format for better compatibility.
           This option allows the command to use the latter format for
           compactness. Depending on the average delta chain length, this
           option typically shrinks the resulting packfile by 3-5 per-cent.

           Note: Porcelain commands such as git gc (see git-gc(1)), git repack
           (see git-repack(1)) pass this option by default in modern Git when
           they put objects in your repository into pack files. So does git
           bundle (see git-bundle(1)) when it creates a bundle.

           Specifies the number of threads to spawn when searching for best
           delta matches. This requires that pack-objects 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 set the number of threads

           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.

           With this option, parents that are hidden by grafts are packed

           Requires --stdout. Omits certain objects (usually blobs) from the
           resulting packfile. See git-rev-list(1) for valid <filter-spec>

           Turns off any previous --filter= argument.

           A debug option to help with future "partial clone" development.
           This option specifies how missing objects are handled.

           The form --missing=error requests that pack-objects stop with an
           error if a missing object is encountered. This is the default

           The form --missing=allow-any will allow object traversal to
           continue if a missing object is encountered. Missing objects will
           silently be omitted from the results.

           The form --missing=allow-promisor is like allow-any, but will only
           allow object traversal to continue for EXPECTED promisor missing
           objects. Unexpected missing object will raise an error.

           Omit objects that are known to be in the promisor remote. (This
           option has the purpose of operating only on locally created
           objects, so that when we repack, we still maintain a distinction
           between locally created objects [without .promisor] and objects
           from the promisor remote [with .promisor].) This is used with
           partial clone.

       git-rev-list(1) git-repack(1) git-prune-packed(1)

       Part of the git(1) suite

Git 2.17.1                        09/09/2021               GIT-PACK-OBJECTS(1)
Man Pages Copyright Respective Owners. Site Copyright (C) 1994 - 2022 Hurricane Electric. All Rights Reserved.