Merge branch 'ew/svn-crlf'
[git/git.git] / Documentation / git-clone.txt
1 git-clone(1)
2 ============
5 ----
6 git-clone - Clone a repository into a new directory
10 --------
11 [verse]
12 'git clone' [--template=<template_directory>]
13 [-l] [-s] [--no-hardlinks] [-q] [-n] [--bare] [--mirror]
14 [-o <name>] [-b <name>] [-u <upload-pack>] [--reference <repository>]
15 [--dissociate] [--separate-git-dir <git dir>]
16 [--depth <depth>] [--[no-]single-branch] [--no-tags]
17 [--recurse-submodules[=<pathspec>]] [--[no-]shallow-submodules]
18 [--jobs <n>] [--] <repository> [<directory>]
21 -----------
23 Clones a repository into a newly created directory, creates
24 remote-tracking branches for each branch in the cloned repository
25 (visible using `git branch -r`), and creates and checks out an
26 initial branch that is forked from the cloned repository's
27 currently active branch.
29 After the clone, a plain `git fetch` without arguments will update
30 all the remote-tracking branches, and a `git pull` without
31 arguments will in addition merge the remote master branch into the
32 current master branch, if any (this is untrue when "--single-branch"
33 is given; see below).
35 This default configuration is achieved by creating references to
36 the remote branch heads under `refs/remotes/origin` and
37 by initializing `remote.origin.url` and `remote.origin.fetch`
38 configuration variables.
42 -------
43 --local::
44 -l::
45 When the repository to clone from is on a local machine,
46 this flag bypasses the normal "Git aware" transport
47 mechanism and clones the repository by making a copy of
48 HEAD and everything under objects and refs directories.
49 The files under `.git/objects/` directory are hardlinked
50 to save space when possible.
51 +
52 If the repository is specified as a local path (e.g., `/path/to/repo`),
53 this is the default, and --local is essentially a no-op. If the
54 repository is specified as a URL, then this flag is ignored (and we
55 never use the local optimizations). Specifying `--no-local` will
56 override the default when `/path/to/repo` is given, using the regular
57 Git transport instead.
59 --no-hardlinks::
60 Force the cloning process from a repository on a local
61 filesystem to copy the files under the `.git/objects`
62 directory instead of using hardlinks. This may be desirable
63 if you are trying to make a back-up of your repository.
65 --shared::
66 -s::
67 When the repository to clone is on the local machine,
68 instead of using hard links, automatically setup
69 `.git/objects/info/alternates` to share the objects
70 with the source repository. The resulting repository
71 starts out without any object of its own.
72 +
73 *NOTE*: this is a possibly dangerous operation; do *not* use
74 it unless you understand what it does. If you clone your
75 repository using this option and then delete branches (or use any
76 other Git command that makes any existing commit unreferenced) in the
77 source repository, some objects may become unreferenced (or dangling).
78 These objects may be removed by normal Git operations (such as `git commit`)
79 which automatically call `git gc --auto`. (See linkgit:git-gc[1].)
80 If these objects are removed and were referenced by the cloned repository,
81 then the cloned repository will become corrupt.
82 +
83 Note that running `git repack` without the `-l` option in a repository
84 cloned with `-s` will copy objects from the source repository into a pack
85 in the cloned repository, removing the disk space savings of `clone -s`.
86 It is safe, however, to run `git gc`, which uses the `-l` option by
87 default.
88 +
89 If you want to break the dependency of a repository cloned with `-s` on
90 its source repository, you can simply run `git repack -a` to copy all
91 objects from the source repository into a pack in the cloned repository.
93 --reference[-if-able] <repository>::
94 If the reference repository is on the local machine,
95 automatically setup `.git/objects/info/alternates` to
96 obtain objects from the reference repository. Using
97 an already existing repository as an alternate will
98 require fewer objects to be copied from the repository
99 being cloned, reducing network and local storage costs.
100 When using the `--reference-if-able`, a non existing
101 directory is skipped with a warning instead of aborting
102 the clone.
103 +
104 *NOTE*: see the NOTE for the `--shared` option, and also the
105 `--dissociate` option.
107 --dissociate::
108 Borrow the objects from reference repositories specified
109 with the `--reference` options only to reduce network
110 transfer, and stop borrowing from them after a clone is made
111 by making necessary local copies of borrowed objects. This
112 option can also be used when cloning locally from a
113 repository that already borrows objects from another
114 repository--the new repository will borrow objects from the
115 same repository, and this option can be used to stop the
116 borrowing.
118 --quiet::
119 -q::
120 Operate quietly. Progress is not reported to the standard
121 error stream.
123 --verbose::
124 -v::
125 Run verbosely. Does not affect the reporting of progress status
126 to the standard error stream.
128 --progress::
129 Progress status is reported on the standard error stream
130 by default when it is attached to a terminal, unless -q
131 is specified. This flag forces progress status even if the
132 standard error stream is not directed to a terminal.
134 --no-checkout::
135 -n::
136 No checkout of HEAD is performed after the clone is complete.
138 --bare::
139 Make a 'bare' Git repository. That is, instead of
140 creating `<directory>` and placing the administrative
141 files in `<directory>/.git`, make the `<directory>`
142 itself the `$GIT_DIR`. This obviously implies the `-n`
143 because there is nowhere to check out the working tree.
144 Also the branch heads at the remote are copied directly
145 to corresponding local branch heads, without mapping
146 them to `refs/remotes/origin/`. When this option is
147 used, neither remote-tracking branches nor the related
148 configuration variables are created.
150 --mirror::
151 Set up a mirror of the source repository. This implies `--bare`.
152 Compared to `--bare`, `--mirror` not only maps local branches of the
153 source to local branches of the target, it maps all refs (including
154 remote-tracking branches, notes etc.) and sets up a refspec configuration such
155 that all these refs are overwritten by a `git remote update` in the
156 target repository.
158 --origin <name>::
159 -o <name>::
160 Instead of using the remote name `origin` to keep track
161 of the upstream repository, use `<name>`.
163 --branch <name>::
164 -b <name>::
165 Instead of pointing the newly created HEAD to the branch pointed
166 to by the cloned repository's HEAD, point to `<name>` branch
167 instead. In a non-bare repository, this is the branch that will
168 be checked out.
169 `--branch` can also take tags and detaches the HEAD at that commit
170 in the resulting repository.
172 --upload-pack <upload-pack>::
173 -u <upload-pack>::
174 When given, and the repository to clone from is accessed
175 via ssh, this specifies a non-default path for the command
176 run on the other end.
178 --template=<template_directory>::
179 Specify the directory from which templates will be used;
180 (See the "TEMPLATE DIRECTORY" section of linkgit:git-init[1].)
182 --config <key>=<value>::
183 -c <key>=<value>::
184 Set a configuration variable in the newly-created repository;
185 this takes effect immediately after the repository is
186 initialized, but before the remote history is fetched or any
187 files checked out. The key is in the same format as expected by
188 linkgit:git-config[1] (e.g., `core.eol=true`). If multiple
189 values are given for the same key, each value will be written to
190 the config file. This makes it safe, for example, to add
191 additional fetch refspecs to the origin remote.
193 --depth <depth>::
194 Create a 'shallow' clone with a history truncated to the
195 specified number of commits. Implies `--single-branch` unless
196 `--no-single-branch` is given to fetch the histories near the
197 tips of all branches. If you want to clone submodules shallowly,
198 also pass `--shallow-submodules`.
200 --shallow-since=<date>::
201 Create a shallow clone with a history after the specified time.
203 --shallow-exclude=<revision>::
204 Create a shallow clone with a history, excluding commits
205 reachable from a specified remote branch or tag. This option
206 can be specified multiple times.
208 --[no-]single-branch::
209 Clone only the history leading to the tip of a single branch,
210 either specified by the `--branch` option or the primary
211 branch remote's `HEAD` points at.
212 Further fetches into the resulting repository will only update the
213 remote-tracking branch for the branch this option was used for the
214 initial cloning. If the HEAD at the remote did not point at any
215 branch when `--single-branch` clone was made, no remote-tracking
216 branch is created.
218 --no-tags::
219 Don't clone any tags, and set
220 `remote.<remote>.tagOpt=--no-tags` in the config, ensuring
221 that future `git pull` and `git fetch` operations won't follow
222 any tags. Subsequent explicit tag fetches will still work,
223 (see linkgit:git-fetch[1]).
224 +
225 Can be used in conjunction with `--single-branch` to clone and
226 maintain a branch with no references other than a single cloned
227 branch. This is useful e.g. to maintain minimal clones of the default
228 branch of some repository for search indexing.
230 --recurse-submodules[=<pathspec]::
231 After the clone is created, initialize and clone submodules
232 within based on the provided pathspec. If no pathspec is
233 provided, all submodules are initialized and cloned.
234 This option can be given multiple times for pathspecs consisting
235 of multiple entries. The resulting clone has `` set to
236 the provided pathspec, or "." (meaning all submodules) if no
237 pathspec is provided.
238 +
239 Submodules are initialized and cloned using their default settings. This is
240 equivalent to running
241 `git submodule update --init --recursive <pathspec>` immediately after
242 the clone is finished. This option is ignored if the cloned repository does
243 not have a worktree/checkout (i.e. if any of `--no-checkout`/`-n`, `--bare`,
244 or `--mirror` is given)
246 --[no-]shallow-submodules::
247 All submodules which are cloned will be shallow with a depth of 1.
249 --separate-git-dir=<git dir>::
250 Instead of placing the cloned repository where it is supposed
251 to be, place the cloned repository at the specified directory,
252 then make a filesystem-agnostic Git symbolic link to there.
253 The result is Git repository can be separated from working
254 tree.
256 -j <n>::
257 --jobs <n>::
258 The number of submodules fetched at the same time.
259 Defaults to the `submodule.fetchJobs` option.
261 <repository>::
262 The (possibly remote) repository to clone from. See the
263 <<URLS,URLS>> section below for more information on specifying
264 repositories.
266 <directory>::
267 The name of a new directory to clone into. The "humanish"
268 part of the source repository is used if no directory is
269 explicitly given (`repo` for `/path/to/repo.git` and `foo`
270 for `host.xz:foo/.git`). Cloning into an existing directory
271 is only allowed if the directory is empty.
273 :git-clone: 1
274 include::urls.txt[]
276 Examples
277 --------
279 * Clone from upstream:
280 +
281 ------------
282 $ git clone git:// my-linux
283 $ cd my-linux
284 $ make
285 ------------
288 * Make a local clone that borrows from the current directory, without checking things out:
289 +
290 ------------
291 $ git clone -l -s -n . ../copy
292 $ cd ../copy
293 $ git show-branch
294 ------------
297 * Clone from upstream while borrowing from an existing local directory:
298 +
299 ------------
300 $ git clone --reference /git/linux.git \
301 git:// \
302 my-linux
303 $ cd my-linux
304 ------------
307 * Create a bare repository to publish your changes to the public:
308 +
309 ------------
310 $ git clone --bare -l /home/proj/.git /pub/scm/proj.git
311 ------------
314 GIT
315 ---
316 Part of the linkgit:git[1] suite