NAME | SYNOPSIS | DESCRIPTION | OPTIONS | SPECIFYING REFERENCES | EXAMPLE | GIT | COLOPHON

GIT-BUNDLE(1)                    Git Manual                    GIT-BUNDLE(1)

NAME         top

       git-bundle - Move objects and refs by archive

SYNOPSIS         top

       git bundle create <file> <git-rev-list-args>
       git bundle verify <file>
       git bundle list-heads <file> [<refname>...]
       git bundle unbundle <file> [<refname>...]

DESCRIPTION         top

       Some workflows require that one or more branches of development on
       one machine be replicated on another machine, but the two machines
       cannot be directly connected, and therefore the interactive Git
       protocols (git, ssh, http) cannot be used. This command provides
       support for git fetch and git pull to operate by packaging objects
       and references in an archive at the originating machine, then
       importing those into another repository using git fetch and git pull
       after moving the archive by some means (e.g., by sneakernet). As no
       direct connection between the repositories exists, the user must
       specify a basis for the bundle that is held by the destination
       repository: the bundle assumes that all objects in the basis are
       already in the destination repository.

OPTIONS         top

       create <file>
           Used to create a bundle named file. This requires the
           git-rev-list-args arguments to define the bundle contents.

       verify <file>
           Used to check that a bundle file is valid and will apply cleanly
           to the current repository. This includes checks on the bundle
           format itself as well as checking that the prerequisite commits
           exist and are fully linked in the current repository.  git bundle
           prints a list of missing commits, if any, and exits with a
           non-zero status.

       list-heads <file>
           Lists the references defined in the bundle. If followed by a list
           of references, only references matching those given are printed
           out.

       unbundle <file>
           Passes the objects in the bundle to git index-pack for storage in
           the repository, then prints the names of all defined references.
           If a list of references is given, only references matching those
           in the list are printed. This command is really plumbing,
           intended to be called only by git fetch.

       <git-rev-list-args>
           A list of arguments, acceptable to git rev-parse and git rev-list
           (and containing a named ref, see SPECIFYING REFERENCES below),
           that specifies the specific objects and references to transport.
           For example, master~10..master causes the current master
           reference to be packaged along with all objects added since its
           10th ancestor commit. There is no explicit limit to the number of
           references and objects that may be packaged.

       [<refname>...]
           A list of references used to limit the references reported as
           available. This is principally of use to git fetch, which expects
           to receive only those references asked for and not necessarily
           everything in the pack (in this case, git bundle acts like git
           fetch-pack).

SPECIFYING REFERENCES         top

       git bundle will only package references that are shown by git
       show-ref: this includes heads, tags, and remote heads. References
       such as master~1 cannot be packaged, but are perfectly suitable for
       defining the basis. More than one reference may be packaged, and more
       than one basis can be specified. The objects packaged are those not
       contained in the union of the given bases. Each basis can be
       specified explicitly (e.g. ^master~10), or implicitly (e.g.
       master~10..master, --since=10.days.ago master).

       It is very important that the basis used be held by the destination.
       It is okay to err on the side of caution, causing the bundle file to
       contain objects already in the destination, as these are ignored when
       unpacking at the destination.

EXAMPLE         top

       Assume you want to transfer the history from a repository R1 on
       machine A to another repository R2 on machine B. For whatever reason,
       direct connection between A and B is not allowed, but we can move
       data from A to B via some mechanism (CD, email, etc.). We want to
       update R2 with development made on the branch master in R1.

       To bootstrap the process, you can first create a bundle that does not
       have any basis. You can use a tag to remember up to what commit you
       last processed, in order to make it easy to later update the other
       repository with an incremental bundle:

           machineA$ cd R1
           machineA$ git bundle create file.bundle master
           machineA$ git tag -f lastR2bundle master

       Then you transfer file.bundle to the target machine B. Because this
       bundle does not require any existing object to be extracted, you can
       create a new repository on machine B by cloning from it:

           machineB$ git clone -b master /home/me/tmp/file.bundle R2

       This will define a remote called "origin" in the resulting repository
       that lets you fetch and pull from the bundle. The $GIT_DIR/config
       file in R2 will have an entry like this:

           [remote "origin"]
               url = /home/me/tmp/file.bundle
               fetch = refs/heads/*:refs/remotes/origin/*

       To update the resulting mine.git repository, you can fetch or pull
       after replacing the bundle stored at /home/me/tmp/file.bundle with
       incremental updates.

       After working some more in the original repository, you can create an
       incremental bundle to update the other repository:

           machineA$ cd R1
           machineA$ git bundle create file.bundle lastR2bundle..master
           machineA$ git tag -f lastR2bundle master

       You then transfer the bundle to the other machine to replace
       /home/me/tmp/file.bundle, and pull from it.

           machineB$ cd R2
           machineB$ git pull

       If you know up to what commit the intended recipient repository
       should have the necessary objects, you can use that knowledge to
       specify the basis, giving a cut-off point to limit the revisions and
       objects that go in the resulting bundle. The previous example used
       the lastR2bundle tag for this purpose, but you can use any other
       options that you would give to the git-log(1) command. Here are more
       examples:

       You can use a tag that is present in both:

           $ git bundle create mybundle v1.0.0..master

       You can use a basis based on time:

           $ git bundle create mybundle --since=10.days master

       You can use the number of commits:

           $ git bundle create mybundle -10 master

       You can run git-bundle verify to see if you can extract from a bundle
       that was created with a basis:

           $ git bundle verify mybundle

       This will list what commits you must have in order to extract from
       the bundle and will error out if you do not have them.

       A bundle from a recipient repository’s point of view is just like a
       regular repository which it fetches or pulls from. You can, for
       example, map references when fetching:

           $ git fetch mybundle master:localRef

       You can also see what references it offers:

           $ git ls-remote mybundle

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 
       ⟨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
       2017-05-03.  If you discover any rendering problems in this HTML ver‐
       sion 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 man‐
       ual page), send a mail to man-pages@man7.org

Git 2.8.0.rc1                    03/10/2016                    GIT-BUNDLE(1)

Pages that refer to this page: dpkg-source(1)git(1)git-fast-export(1)git-pack-objects(1)