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![Shawn Pearce](/assets/img/avatar_default.png)
The new --reference flag introduced to git-clone in GIT 1.3.0 was not documented but is rather handy. So document it. Also corrected a minor issue with the documentation for the -s flag; the info/alternates file name was spelled wrong. Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
163 lines
4.2 KiB
Plaintext
163 lines
4.2 KiB
Plaintext
git-clone(1)
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============
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NAME
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----
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git-clone - Clones a repository
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SYNOPSIS
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--------
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[verse]
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'git-clone' [-l [-s]] [-q] [-n] [--bare] [-o <name>] [-u <upload-pack>]
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[--reference <repository>]
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<repository> [<directory>]
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DESCRIPTION
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-----------
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Clones a repository into a newly created directory. All remote
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branch heads are copied under `$GIT_DIR/refs/heads/`, except
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that the remote `master` is also copied to `origin` branch.
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In addition, `$GIT_DIR/remotes/origin` file is set up to have
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this line:
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Pull: master:origin
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This is to help the typical workflow of working off of the
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remote `master` branch. Every time `git pull` without argument
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is run, the progress on the remote `master` branch is tracked by
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copying it into the local `origin` branch, and merged into the
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branch you are currently working on. Remote branches other than
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`master` are also added there to be tracked.
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OPTIONS
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-------
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--local::
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-l::
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When the repository to clone from is on a local machine,
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this flag bypasses normal "git aware" transport
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mechanism and clones the repository by making a copy of
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HEAD and everything under objects and refs directories.
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The files under .git/objects/ directory are hardlinked
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to save space when possible.
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--shared::
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-s::
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When the repository to clone is on the local machine,
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instead of using hard links, automatically setup
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.git/objects/info/alternates to share the objects
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with the source repository. The resulting repository
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starts out without any object of its own.
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--reference <repository>::
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If the reference repository is on the local machine
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automatically setup .git/objects/info/alternates to
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obtain objects from the reference repository. Using
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an already existing repository as an alternate will
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require less objects to be copied from the repository
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being cloned, reducing network and local storage costs.
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--quiet::
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-q::
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Operate quietly. This flag is passed to "rsync" and
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"git-clone-pack" commands when given.
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-n::
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No checkout of HEAD is performed after the clone is complete.
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--bare::
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Make a 'bare' GIT repository. That is, instead of
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creating `<directory>` and placing the administrative
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files in `<directory>/.git`, make the `<directory>`
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itself the `$GIT_DIR`. This implies `-n` option. When
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this option is used, neither the `origin` branch nor the
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default `remotes/origin` file is created.
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-o <name>::
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Instead of using the branch name 'origin' to keep track
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of the upstream repository, use <name> instead. Note
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that the shorthand name stored in `remotes/origin` is
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not affected, but the local branch name to pull the
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remote `master` branch into is.
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--upload-pack <upload-pack>::
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-u <upload-pack>::
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When given, and the repository to clone from is handled
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by 'git-clone-pack', '--exec=<upload-pack>' is passed to
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the command to specify non-default path for the command
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run on the other end.
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<repository>::
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The (possibly remote) repository to clone from. It can
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be any URL git-fetch supports.
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<directory>::
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The name of a new directory to clone into. The "humanish"
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part of the source repository is used if no directory is
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explicitly given ("repo" for "/path/to/repo.git" and "foo"
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for "host.xz:foo/.git"). Cloning into an existing directory
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is not allowed.
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Examples
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~~~~~~~~
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Clone from upstream::
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+
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------------
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$ git clone git://git.kernel.org/pub/scm/.../linux-2.6 my2.6
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$ cd my2.6
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$ make
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------------
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Make a local clone that borrows from the current directory, without checking things out::
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+
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------------
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$ git clone -l -s -n . ../copy
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$ cd copy
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$ git show-branch
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------------
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Clone from upstream while borrowing from an existing local directory::
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+
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------------
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$ git clone --reference my2.6 \
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git://git.kernel.org/pub/scm/.../linux-2.7 \
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my2.7
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$ cd my2.7
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------------
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Create a bare repository to publish your changes to the public::
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+
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------------
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$ git clone --bare -l /home/proj/.git /pub/scm/proj.git
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------------
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Create a repository on the kernel.org machine that borrows from Linus::
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+
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------------
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$ git clone --bare -l -s /pub/scm/.../torvalds/linux-2.6.git \
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/pub/scm/.../me/subsys-2.6.git
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------------
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Author
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------
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Written by Linus Torvalds <torvalds@osdl.org>
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Documentation
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--------------
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Documentation by Junio C Hamano and the git-list <git@vger.kernel.org>.
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GIT
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---
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Part of the gitlink:git[7] suite
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