Documentation / git-clone.txton commit git-p4: Unset P4DIFF environment variable when using 'p4 -du diff' (67abd41)
   1git-clone(1)
   2============
   3
   4NAME
   5----
   6git-clone - Clone a repository into a new directory
   7
   8
   9SYNOPSIS
  10--------
  11[verse]
  12'git-clone' [--template=<template_directory>]
  13          [-l] [-s] [--no-hardlinks] [-q] [-n] [--bare]
  14          [-o <name>] [-u <upload-pack>] [--reference <repository>]
  15          [--depth <depth>] [--] <repository> [<directory>]
  16
  17DESCRIPTION
  18-----------
  19
  20Clones a repository into a newly created directory, creates
  21remote-tracking branches for each branch in the cloned repository
  22(visible using `git branch -r`), and creates and checks out an initial
  23branch equal to the cloned repository's currently active branch.
  24
  25After the clone, a plain `git fetch` without arguments will update
  26all the remote-tracking branches, and a `git pull` without
  27arguments will in addition merge the remote master branch into the
  28current master branch, if any.
  29
  30This default configuration is achieved by creating references to
  31the remote branch heads under `$GIT_DIR/refs/remotes/origin` and
  32by initializing `remote.origin.url` and `remote.origin.fetch`
  33configuration variables.
  34
  35
  36OPTIONS
  37-------
  38--local::
  39-l::
  40        When the repository to clone from is on a local machine,
  41        this flag bypasses normal "git aware" transport
  42        mechanism and clones the repository by making a copy of
  43        HEAD and everything under objects and refs directories.
  44        The files under `.git/objects/` directory are hardlinked
  45        to save space when possible.  This is now the default when
  46        the source repository is specified with `/path/to/repo`
  47        syntax, so it essentially is a no-op option.  To force
  48        copying instead of hardlinking (which may be desirable
  49        if you are trying to make a back-up of your repository),
  50        but still avoid the usual "git aware" transport
  51        mechanism, `--no-hardlinks` can be used.
  52
  53--no-hardlinks::
  54        Optimize the cloning process from a repository on a
  55        local filesystem by copying files under `.git/objects`
  56        directory.
  57
  58--shared::
  59-s::
  60        When the repository to clone is on the local machine,
  61        instead of using hard links, automatically setup
  62        .git/objects/info/alternates to share the objects
  63        with the source repository.  The resulting repository
  64        starts out without any object of its own.
  65+
  66*NOTE*: this is a possibly dangerous operation; do *not* use
  67it unless you understand what it does. If you clone your
  68repository using this option, then delete branches in the
  69source repository and then run linkgit:git-gc[1] using the
  70'--prune' option in the source repository, it may remove
  71objects which are referenced by the cloned repository.
  72
  73
  74
  75--reference <repository>::
  76        If the reference repository is on the local machine
  77        automatically setup .git/objects/info/alternates to
  78        obtain objects from the reference repository.  Using
  79        an already existing repository as an alternate will
  80        require fewer objects to be copied from the repository
  81        being cloned, reducing network and local storage costs.
  82
  83--quiet::
  84-q::
  85        Operate quietly.  This flag is passed to "rsync" and
  86        "git-fetch-pack" commands when given.
  87
  88--no-checkout::
  89-n::
  90        No checkout of HEAD is performed after the clone is complete.
  91
  92--bare::
  93        Make a 'bare' GIT repository.  That is, instead of
  94        creating `<directory>` and placing the administrative
  95        files in `<directory>/.git`, make the `<directory>`
  96        itself the `$GIT_DIR`. This obviously implies the `-n`
  97        because there is nowhere to check out the working tree.
  98        Also the branch heads at the remote are copied directly
  99        to corresponding local branch heads, without mapping
 100        them to `refs/remotes/origin/`.  When this option is
 101        used, neither remote-tracking branches nor the related
 102        configuration variables are created.
 103
 104--origin <name>::
 105-o <name>::
 106        Instead of using the remote name 'origin' to keep track
 107        of the upstream repository, use <name> instead.
 108
 109--upload-pack <upload-pack>::
 110-u <upload-pack>::
 111        When given, and the repository to clone from is handled
 112        by 'git-fetch-pack', '--exec=<upload-pack>' is passed to
 113        the command to specify non-default path for the command
 114        run on the other end.
 115
 116--template=<template_directory>::
 117        Specify the directory from which templates will be used;
 118        if unset the templates are taken from the installation
 119        defined default, typically `/usr/share/git-core/templates`.
 120
 121--depth <depth>::
 122        Create a 'shallow' clone with a history truncated to the
 123        specified number of revisions.  A shallow repository has a
 124        number of limitations (you cannot clone or fetch from
 125        it, nor push from nor into it), but is adequate if you
 126        are only interested in the recent history of a large project
 127        with a long history, and would want to send in fixes
 128        as patches.
 129
 130<repository>::
 131        The (possibly remote) repository to clone from.  See the
 132        <<URLS,URLS>> section below for more information on specifying
 133        repositories.
 134
 135<directory>::
 136        The name of a new directory to clone into.  The "humanish"
 137        part of the source repository is used if no directory is
 138        explicitly given ("repo" for "/path/to/repo.git" and "foo"
 139        for "host.xz:foo/.git").  Cloning into an existing directory
 140        is not allowed.
 141
 142:git-clone: 1
 143include::urls.txt[]
 144
 145Examples
 146--------
 147
 148Clone from upstream::
 149+
 150------------
 151$ git clone git://git.kernel.org/pub/scm/.../linux-2.6 my2.6
 152$ cd my2.6
 153$ make
 154------------
 155
 156
 157Make a local clone that borrows from the current directory, without checking things out::
 158+
 159------------
 160$ git clone -l -s -n . ../copy
 161$ cd ../copy
 162$ git show-branch
 163------------
 164
 165
 166Clone from upstream while borrowing from an existing local directory::
 167+
 168------------
 169$ git clone --reference my2.6 \
 170        git://git.kernel.org/pub/scm/.../linux-2.7 \
 171        my2.7
 172$ cd my2.7
 173------------
 174
 175
 176Create a bare repository to publish your changes to the public::
 177+
 178------------
 179$ git clone --bare -l /home/proj/.git /pub/scm/proj.git
 180------------
 181
 182
 183Create a repository on the kernel.org machine that borrows from Linus::
 184+
 185------------
 186$ git clone --bare -l -s /pub/scm/.../torvalds/linux-2.6.git \
 187    /pub/scm/.../me/subsys-2.6.git
 188------------
 189
 190
 191Author
 192------
 193Written by Linus Torvalds <torvalds@osdl.org>
 194
 195
 196Documentation
 197--------------
 198Documentation by Junio C Hamano and the git-list <git@vger.kernel.org>.
 199
 200
 201GIT
 202---
 203Part of the linkgit:git[7] suite