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index 18330cdcd2cda94c9c16c02d70229fa16d4aeb33..57590b148011c44485d28d93d31c6a75a681bfb0 100644 (file)
SYNOPSIS
--------
[verse]
-'git-bundle' create <file> <git-rev-list args>
-'git-bundle' verify <file>
-'git-bundle' list-heads <file> [refname...]
-'git-bundle' unbundle <file> [refname...]
+'git bundle' create <file> <git-rev-list args>
+'git bundle' verify <file>
+'git bundle' list-heads <file> [refname...]
+'git bundle' unbundle <file> [refname...]
DESCRIPTION
-----------
machine be replicated on another machine, but the two machines cannot
be directly connected so the interactive git protocols (git, ssh,
rsync, http) cannot be used. This command provides support for
-git-fetch and git-pull to operate by packaging objects and references
+'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 linkgit:git-fetch[1] and linkgit:git-pull[1]
+another repository using 'git-fetch' and 'git-pull'
after moving the archive by some means (i.e., by sneakernet). As no
direct connection between repositories exists, the user must specify a
basis for the bundle that is held by the destination repository: the
create <file>::
Used to create a bundle named 'file'. This requires the
- git-rev-list arguments to define the bundle contents.
+ 'git-rev-list' 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
+ 'git-bundle' prints a list of missing commits, if any, and exits
with non-zero status.
list-heads <file>::
printed out.
unbundle <file>::
- Passes the objects in the bundle to linkgit:git-index-pack[1]
+ 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 reflist is given, only references
matching those in the given list are printed. This command is
- really plumbing, intended to be called only by
- linkgit:git-fetch[1].
+ 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, that specify the specific objects and references
+ A list of arguments, acceptable to 'git-rev-parse' and
+ 'git-rev-list', that specify 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
[refname...]::
A list of references used to limit the references reported as
- available. This is principally of use to git-fetch, which
+ 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 is
- acting like linkgit:git-fetch-pack[1]).
+ necessarily everything in the pack (in this case, 'git-bundle' is
+ acting like 'git-fetch-pack').
SPECIFYING REFERENCES
---------------------
-git-bundle will only package references that are shown by
-git-show-ref: this includes heads, tags, and remote heads. References
+'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, master --since=10.days.ago).
+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 conservatism, causing the bundle file
EXAMPLE
-------
-Assume two repositories exist as R1 on machine A, and R2 on machine B.
+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 developments made on branch master in R1.
-To create the bundle you have to specify the basis. You have some options:
+To bootstrap the process, you can first create a bundle that doesn't have
+any basis. You can use a tag to remember up to what commit you sent out
+in order to make it easy to later update the other repository with
+incremental bundle,
-- Without basis.
-+
-This is useful when sending the whole history.
+----------------
+machineA$ cd R1
+machineA$ git bundle create file.bundle master
+machineA$ git tag -f lastR2bundle master
+----------------
-------------
-$ git bundle create mybundle master
-------------
+Then you sneakernet file.bundle to the target machine B. Because you don't
+have to have any object to extract objects from such a bundle, not only
+you can fetch/pull from a bundle, you can clone from it as if it was a
+remote repository.
-- Using temporally tags.
-+
-We set a tag in R1 (lastR2bundle) after the previous such transport,
-and move it afterwards to help build the bundle.
+----------------
+machineB$ git clone /home/me/tmp/file.bundle R2
+----------------
-------------
-$ git-bundle create mybundle master ^lastR2bundle
-$ git tag -f lastR2bundle master
-------------
+This will define a remote called "origin" in the resulting repository that
+lets you fetch and pull from the bundle. $GIT_DIR/config file in R2 may
+have an entry like this:
-- Using a tag present in both repositories
+------------------------
+[remote "origin"]
+ url = /home/me/tmp/file.bundle
+ fetch = refs/heads/*:refs/remotes/origin/*
+------------------------
-------------
-$ git bundle create mybundle master ^v1.0.0
-------------
+You can fetch/pull to update the resulting mine.git repository after
+replacing the bundle you store at /home/me/tmp/file.bundle with incremental
+updates from here on.
-- A basis based on time.
+After working more in the original repository, you can create an
+incremental bundle to update the other:
-------------
-$ git bundle create mybundle master --since=10.days.ago
-------------
+----------------
+machineA$ cd R1
+machineA$ git bundle create file.bundle lastR2bundle..master
+machineA$ git tag -f lastR2bundle master
+----------------
-- With a limit on the number of commits
+and sneakernet it to the other machine to replace /home/me/tmp/file.bundle,
+and pull from it.
-------------
-$ git bundle create mybundle master -n 10
-------------
+----------------
+machineB$ cd R2
+machineB$ git pull
+----------------
-Then you move mybundle from A to B, and in R2 on B:
+If you know up to what commit the intended recipient repository should
+have the necessary objects for, 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 lastR2bundle tag
+for this purpose, but you can use other options you would give to
+the linkgit:git-log[1] command. Here are more examples:
-------------
-$ git-bundle verify mybundle
-$ git-fetch mybundle master:localRef
-------------
+You can use a tag that is present in both.
-With something like this in the config in R2:
+----------------
+$ git bundle create mybundle v1.0.0..master
+----------------
-------------------------
-[remote "bundle"]
- url = /home/me/tmp/file.bdl
- fetch = refs/heads/*:refs/remotes/origin/*
-------------------------
+You can use a basis based on time.
+
+----------------
+$ git bundle create mybundle --since=10.days master
+----------------
+
+Or 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 don't have them.
+
+A bundle from a recipient repository's point of view is just like a
+regular repository it fetches/pulls from. You can for example map
+refs, like this example, when fetching:
-You can first sneakernet the bundle file to ~/tmp/file.bdl and
-then these commands on machine B:
+----------------
+$ git fetch mybundle master:localRef
+----------------
-------------
-$ git ls-remote bundle
-$ git fetch bundle
-$ git pull bundle
-------------
+Or see what refs it offers.
-would treat it as if it is talking with a remote side over the
-network.
+----------------
+$ git ls-remote mybundle
+----------------
Author
------
GIT
---
-Part of the linkgit:git[7] suite
+Part of the linkgit:git[1] suite