20f50f1670
Signed-off-by: Junio C Hamano <junkio@cox.net>
140 lines
4.8 KiB
Plaintext
140 lines
4.8 KiB
Plaintext
git-bundle(1)
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=============
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NAME
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----
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git-bundle - Move objects and refs by archive
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SYNOPSIS
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--------
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'git-bundle' create <file> [git-rev-list args]
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'git-bundle' verify <file>
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'git-bundle' list-heads <file> [refname...]
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'git-bundle' unbundle <file> [refname...]
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DESCRIPTION
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-----------
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Some workflows require that one or more branches of development on one
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machine be replicated on another machine, but the two machines cannot
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be directly connected so the interactive git protocols (git, ssh,
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rsync, http) cannot be used. This command provides support for
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git-fetch and git-pull to operate by packaging objects and references
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in an archive at the originating machine, then importing those into
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another repository using gitlink:git-fetch[1] and gitlink:git-pull[1]
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after moving the archive by some means (i.e., by sneakernet). As no
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direct connection between repositories exists, the user must specify a
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basis for the bundle that is held by the destination repository: the
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bundle assumes that all objects in the basis are already in the
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destination repository.
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OPTIONS
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-------
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create <file>::
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Used to create a bundle named 'file'. This requires the
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git-rev-list arguments to define the bundle contents.
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verify <file>::
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Used to check that a bundle file is valid and will apply
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cleanly to the current repository. This includes checks on the
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bundle format itself as well as checking that the prerequisite
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commits exist and are fully linked in the current repository.
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git-bundle prints a list of missing commits, if any, and exits
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with non-zero status.
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list-heads <file>::
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Lists the references defined in the bundle. If followed by a
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list of references, only references matching those given are
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printed out.
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unbundle <file>::
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Passes the objects in the bundle to gitlink:git-index-pack[1]
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for storage in the repository, then prints the names of all
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defined references. If a reflist is given, only references
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matching those in the given list are printed. This command is
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really plumbing, intended to be called only by
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gitlink:git-fetch[1].
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[git-rev-list-args...]::
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A list of arguments, acceptable to git-rev-parse and
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git-rev-list, that specify the specific objects and references
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to transport. For example, "master~10..master" causes the
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current master reference to be packaged along with all objects
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added since its 10th ancestor commit. There is no explicit
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limit to the number of references and objects that may be
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packaged.
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[refname...]::
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A list of references used to limit the references reported as
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available. This is principally of use to git-fetch, which
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expects to receive only those references asked for and not
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necessarily everything in the pack (in this case, git-bundle is
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acting like gitlink:git-fetch-pack[1]).
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SPECIFYING REFERENCES
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---------------------
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git-bundle will only package references that are shown by
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git-show-ref: this includes heads, tags, and remote heads. References
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such as master~1 cannot be packaged, but are perfectly suitable for
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defining the basis. More than one reference may be packaged, and more
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than one basis can be specified. The objects packaged are those not
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contained in the union of the given bases. Each basis can be
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specified explicitly (e.g., ^master~10), or implicitly (e.g.,
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master~10..master, master --since=10.days.ago).
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It is very important that the basis used be held by the destination.
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It is okay to err on the side of conservatism, causing the bundle file
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to contain objects already in the destination as these are ignored
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when unpacking at the destination.
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EXAMPLE
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-------
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Assume two repositories exist as R1 on machine A, and R2 on machine B.
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For whatever reason, direct connection between A and B is not allowed,
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but we can move data from A to B via some mechanism (CD, email, etc).
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We want to update R2 with developments made on branch master in R1.
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We set a tag in R1 (lastR2bundle) after the previous such transport,
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and move it afterwards to help build the bundle.
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in R1 on A:
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$ git-bundle create mybundle master ^lastR2bundle
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$ git tag -f lastR2bundle master
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(move mybundle from A to B by some mechanism)
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in R2 on B:
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$ git-bundle verify mybundle
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$ git-fetch mybundle refspec
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where refspec is refInBundle:localRef
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Also, with something like this in your config:
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[remote "bundle"]
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url = /home/me/tmp/file.bdl
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fetch = refs/heads/*:refs/remotes/origin/*
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You can first sneakernet the bundle file to ~/tmp/file.bdl and
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then these commands:
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$ git ls-remote bundle
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$ git fetch bundle
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$ git pull bundle
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would treat it as if it is talking with a remote side over the
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network.
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Author
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------
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Written by Mark Levedahl <mdl123@verizon.net>
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GIT
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---
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Part of the gitlink:git[7] suite
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