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1 git-worktree(1)
2 ===============
3
4 NAME
5 ----
6 git-worktree - Manage multiple working trees
7
8
9 SYNOPSIS
10 --------
11 [verse]
12 'git worktree add' [-f] [--detach] [--checkout] [--lock [--reason <string>]] [-b <new-branch>] <path> [<commit-ish>]
13 'git worktree list' [-v | --porcelain [-z]]
14 'git worktree lock' [--reason <string>] <worktree>
15 'git worktree move' <worktree> <new-path>
16 'git worktree prune' [-n] [-v] [--expire <expire>]
17 'git worktree remove' [-f] <worktree>
18 'git worktree repair' [<path>...]
19 'git worktree unlock' <worktree>
20
21 DESCRIPTION
22 -----------
23
24 Manage multiple working trees attached to the same repository.
25
26 A git repository can support multiple working trees, allowing you to check
27 out more than one branch at a time. With `git worktree add` a new working
28 tree is associated with the repository, along with additional metadata
29 that differentiates that working tree from others in the same repository.
30 The working tree, along with this metadata, is called a "worktree".
31
32 This new worktree is called a "linked worktree" as opposed to the "main
33 worktree" prepared by linkgit:git-init[1] or linkgit:git-clone[1].
34 A repository has one main worktree (if it's not a bare repository) and
35 zero or more linked worktrees. When you are done with a linked worktree,
36 remove it with `git worktree remove`.
37
38 In its simplest form, `git worktree add <path>` automatically creates a
39 new branch whose name is the final component of `<path>`, which is
40 convenient if you plan to work on a new topic. For instance, `git
41 worktree add ../hotfix` creates new branch `hotfix` and checks it out at
42 path `../hotfix`. To instead work on an existing branch in a new worktree,
43 use `git worktree add <path> <branch>`. On the other hand, if you just
44 plan to make some experimental changes or do testing without disturbing
45 existing development, it is often convenient to create a 'throwaway'
46 worktree not associated with any branch. For instance,
47 `git worktree add -d <path>` creates a new worktree with a detached `HEAD`
48 at the same commit as the current branch.
49
50 If a working tree is deleted without using `git worktree remove`, then
51 its associated administrative files, which reside in the repository
52 (see "DETAILS" below), will eventually be removed automatically (see
53 `gc.worktreePruneExpire` in linkgit:git-config[1]), or you can run
54 `git worktree prune` in the main or any linked worktree to clean up any
55 stale administrative files.
56
57 If the working tree for a linked worktree is stored on a portable device
58 or network share which is not always mounted, you can prevent its
59 administrative files from being pruned by issuing the `git worktree lock`
60 command, optionally specifying `--reason` to explain why the worktree is
61 locked.
62
63 COMMANDS
64 --------
65 add <path> [<commit-ish>]::
66
67 Create a worktree at `<path>` and checkout `<commit-ish>` into it. The new worktree
68 is linked to the current repository, sharing everything except per-worktree
69 files such as `HEAD`, `index`, etc. As a convenience, `<commit-ish>` may
70 be a bare "`-`", which is synonymous with `@{-1}`.
71 +
72 If `<commit-ish>` is a branch name (call it `<branch>`) and is not found,
73 and neither `-b` nor `-B` nor `--detach` are used, but there does
74 exist a tracking branch in exactly one remote (call it `<remote>`)
75 with a matching name, treat as equivalent to:
76 +
77 ------------
78 $ git worktree add --track -b <branch> <path> <remote>/<branch>
79 ------------
80 +
81 If the branch exists in multiple remotes and one of them is named by
82 the `checkout.defaultRemote` configuration variable, we'll use that
83 one for the purposes of disambiguation, even if the `<branch>` isn't
84 unique across all remotes. Set it to
85 e.g. `checkout.defaultRemote=origin` to always checkout remote
86 branches from there if `<branch>` is ambiguous but exists on the
87 `origin` remote. See also `checkout.defaultRemote` in
88 linkgit:git-config[1].
89 +
90 If `<commit-ish>` is omitted and neither `-b` nor `-B` nor `--detach` used,
91 then, as a convenience, the new worktree is associated with a branch (call
92 it `<branch>`) named after `$(basename <path>)`. If `<branch>` doesn't
93 exist, a new branch based on `HEAD` is automatically created as if
94 `-b <branch>` was given. If `<branch>` does exist, it will be checked out
95 in the new worktree, if it's not checked out anywhere else, otherwise the
96 command will refuse to create the worktree (unless `--force` is used).
97
98 list::
99
100 List details of each worktree. The main worktree is listed first,
101 followed by each of the linked worktrees. The output details include
102 whether the worktree is bare, the revision currently checked out, the
103 branch currently checked out (or "detached HEAD" if none), "locked" if
104 the worktree is locked, "prunable" if the worktree can be pruned by the
105 `prune` command.
106
107 lock::
108
109 If a worktree is on a portable device or network share which is not always
110 mounted, lock it to prevent its administrative files from being pruned
111 automatically. This also prevents it from being moved or deleted.
112 Optionally, specify a reason for the lock with `--reason`.
113
114 move::
115
116 Move a worktree to a new location. Note that the main worktree or linked
117 worktrees containing submodules cannot be moved with this command. (The
118 `git worktree repair` command, however, can reestablish the connection
119 with linked worktrees if you move the main worktree manually.)
120
121 prune::
122
123 Prune worktree information in `$GIT_DIR/worktrees`.
124
125 remove::
126
127 Remove a worktree. Only clean worktrees (no untracked files and no
128 modification in tracked files) can be removed. Unclean worktrees or ones
129 with submodules can be removed with `--force`. The main worktree cannot be
130 removed.
131
132 repair [<path>...]::
133
134 Repair worktree administrative files, if possible, if they have become
135 corrupted or outdated due to external factors.
136 +
137 For instance, if the main worktree (or bare repository) is moved, linked
138 worktrees will be unable to locate it. Running `repair` in the main
139 worktree will reestablish the connection from linked worktrees back to the
140 main worktree.
141 +
142 Similarly, if the working tree for a linked worktree is moved without
143 using `git worktree move`, the main worktree (or bare repository) will be
144 unable to locate it. Running `repair` within the recently-moved worktree
145 will reestablish the connection. If multiple linked worktrees are moved,
146 running `repair` from any worktree with each tree's new `<path>` as an
147 argument, will reestablish the connection to all the specified paths.
148 +
149 If both the main worktree and linked worktrees have been moved manually,
150 then running `repair` in the main worktree and specifying the new `<path>`
151 of each linked worktree will reestablish all connections in both
152 directions.
153
154 unlock::
155
156 Unlock a worktree, allowing it to be pruned, moved or deleted.
157
158 OPTIONS
159 -------
160
161 -f::
162 --force::
163 By default, `add` refuses to create a new worktree when
164 `<commit-ish>` is a branch name and is already checked out by
165 another worktree, or if `<path>` is already assigned to some
166 worktree but is missing (for instance, if `<path>` was deleted
167 manually). This option overrides these safeguards. To add a missing but
168 locked worktree path, specify `--force` twice.
169 +
170 `move` refuses to move a locked worktree unless `--force` is specified
171 twice. If the destination is already assigned to some other worktree but is
172 missing (for instance, if `<new-path>` was deleted manually), then `--force`
173 allows the move to proceed; use `--force` twice if the destination is locked.
174 +
175 `remove` refuses to remove an unclean worktree unless `--force` is used.
176 To remove a locked worktree, specify `--force` twice.
177
178 -b <new-branch>::
179 -B <new-branch>::
180 With `add`, create a new branch named `<new-branch>` starting at
181 `<commit-ish>`, and check out `<new-branch>` into the new worktree.
182 If `<commit-ish>` is omitted, it defaults to `HEAD`.
183 By default, `-b` refuses to create a new branch if it already
184 exists. `-B` overrides this safeguard, resetting `<new-branch>` to
185 `<commit-ish>`.
186
187 -d::
188 --detach::
189 With `add`, detach `HEAD` in the new worktree. See "DETACHED HEAD"
190 in linkgit:git-checkout[1].
191
192 --[no-]checkout::
193 By default, `add` checks out `<commit-ish>`, however, `--no-checkout` can
194 be used to suppress checkout in order to make customizations,
195 such as configuring sparse-checkout. See "Sparse checkout"
196 in linkgit:git-read-tree[1].
197
198 --[no-]guess-remote::
199 With `worktree add <path>`, without `<commit-ish>`, instead
200 of creating a new branch from `HEAD`, if there exists a tracking
201 branch in exactly one remote matching the basename of `<path>`,
202 base the new branch on the remote-tracking branch, and mark
203 the remote-tracking branch as "upstream" from the new branch.
204 +
205 This can also be set up as the default behaviour by using the
206 `worktree.guessRemote` config option.
207
208 --[no-]track::
209 When creating a new branch, if `<commit-ish>` is a branch,
210 mark it as "upstream" from the new branch. This is the
211 default if `<commit-ish>` is a remote-tracking branch. See
212 `--track` in linkgit:git-branch[1] for details.
213
214 --lock::
215 Keep the worktree locked after creation. This is the
216 equivalent of `git worktree lock` after `git worktree add`,
217 but without a race condition.
218
219 -n::
220 --dry-run::
221 With `prune`, do not remove anything; just report what it would
222 remove.
223
224 --porcelain::
225 With `list`, output in an easy-to-parse format for scripts.
226 This format will remain stable across Git versions and regardless of user
227 configuration. It is recommended to combine this with `-z`.
228 See below for details.
229
230 -z::
231 Terminate each line with a NUL rather than a newline when
232 `--porcelain` is specified with `list`. This makes it possible
233 to parse the output when a worktree path contains a newline
234 character.
235
236 -q::
237 --quiet::
238 With `add`, suppress feedback messages.
239
240 -v::
241 --verbose::
242 With `prune`, report all removals.
243 +
244 With `list`, output additional information about worktrees (see below).
245
246 --expire <time>::
247 With `prune`, only expire unused worktrees older than `<time>`.
248 +
249 With `list`, annotate missing worktrees as prunable if they are older than
250 `<time>`.
251
252 --reason <string>::
253 With `lock` or with `add --lock`, an explanation why the worktree
254 is locked.
255
256 <worktree>::
257 Worktrees can be identified by path, either relative or absolute.
258 +
259 If the last path components in the worktree's path is unique among
260 worktrees, it can be used to identify a worktree. For example if you only
261 have two worktrees, at `/abc/def/ghi` and `/abc/def/ggg`, then `ghi` or
262 `def/ghi` is enough to point to the former worktree.
263
264 REFS
265 ----
266 When using multiple worktrees, some refs are shared between all worktrees,
267 but others are specific to an individual worktree. One example is `HEAD`,
268 which is different for each worktree. This section is about the sharing
269 rules and how to access refs of one worktree from another.
270
271 In general, all pseudo refs are per-worktree and all refs starting with
272 `refs/` are shared. Pseudo refs are ones like `HEAD` which are directly
273 under `$GIT_DIR` instead of inside `$GIT_DIR/refs`. There are exceptions,
274 however: refs inside `refs/bisect` and `refs/worktree` are not shared.
275
276 Refs that are per-worktree can still be accessed from another worktree via
277 two special paths, `main-worktree` and `worktrees`. The former gives
278 access to per-worktree refs of the main worktree, while the latter to all
279 linked worktrees.
280
281 For example, `main-worktree/HEAD` or `main-worktree/refs/bisect/good`
282 resolve to the same value as the main worktree's `HEAD` and
283 `refs/bisect/good` respectively. Similarly, `worktrees/foo/HEAD` or
284 `worktrees/bar/refs/bisect/bad` are the same as
285 `$GIT_COMMON_DIR/worktrees/foo/HEAD` and
286 `$GIT_COMMON_DIR/worktrees/bar/refs/bisect/bad`.
287
288 To access refs, it's best not to look inside `$GIT_DIR` directly. Instead
289 use commands such as linkgit:git-rev-parse[1] or linkgit:git-update-ref[1]
290 which will handle refs correctly.
291
292 CONFIGURATION FILE
293 ------------------
294 By default, the repository `config` file is shared across all worktrees.
295 If the config variables `core.bare` or `core.worktree` are present in the
296 common config file and `extensions.worktreeConfig` is disabled, then they
297 will be applied to the main worktree only.
298
299 In order to have worktree-specific configuration, you can turn on the
300 `worktreeConfig` extension, e.g.:
301
302 ------------
303 $ git config extensions.worktreeConfig true
304 ------------
305
306 In this mode, specific configuration stays in the path pointed by `git
307 rev-parse --git-path config.worktree`. You can add or update
308 configuration in this file with `git config --worktree`. Older Git
309 versions will refuse to access repositories with this extension.
310
311 Note that in this file, the exception for `core.bare` and `core.worktree`
312 is gone. If they exist in `$GIT_DIR/config`, you must move
313 them to the `config.worktree` of the main worktree. You may also take this
314 opportunity to review and move other configuration that you do not want to
315 share to all worktrees:
316
317 - `core.worktree` should never be shared.
318
319 - `core.bare` should not be shared if the value is `core.bare=true`.
320
321 - `core.sparseCheckout` should not be shared, unless you are sure you
322 always use sparse checkout for all worktrees.
323
324 See the documentation of `extensions.worktreeConfig` in
325 linkgit:git-config[1] for more details.
326
327 DETAILS
328 -------
329 Each linked worktree has a private sub-directory in the repository's
330 `$GIT_DIR/worktrees` directory. The private sub-directory's name is usually
331 the base name of the linked worktree's path, possibly appended with a
332 number to make it unique. For example, when `$GIT_DIR=/path/main/.git` the
333 command `git worktree add /path/other/test-next next` creates the linked
334 worktree in `/path/other/test-next` and also creates a
335 `$GIT_DIR/worktrees/test-next` directory (or `$GIT_DIR/worktrees/test-next1`
336 if `test-next` is already taken).
337
338 Within a linked worktree, `$GIT_DIR` is set to point to this private
339 directory (e.g. `/path/main/.git/worktrees/test-next` in the example) and
340 `$GIT_COMMON_DIR` is set to point back to the main worktree's `$GIT_DIR`
341 (e.g. `/path/main/.git`). These settings are made in a `.git` file located at
342 the top directory of the linked worktree.
343
344 Path resolution via `git rev-parse --git-path` uses either
345 `$GIT_DIR` or `$GIT_COMMON_DIR` depending on the path. For example, in the
346 linked worktree `git rev-parse --git-path HEAD` returns
347 `/path/main/.git/worktrees/test-next/HEAD` (not
348 `/path/other/test-next/.git/HEAD` or `/path/main/.git/HEAD`) while `git
349 rev-parse --git-path refs/heads/master` uses
350 `$GIT_COMMON_DIR` and returns `/path/main/.git/refs/heads/master`,
351 since refs are shared across all worktrees, except `refs/bisect` and
352 `refs/worktree`.
353
354 See linkgit:gitrepository-layout[5] for more information. The rule of
355 thumb is do not make any assumption about whether a path belongs to
356 `$GIT_DIR` or `$GIT_COMMON_DIR` when you need to directly access something
357 inside `$GIT_DIR`. Use `git rev-parse --git-path` to get the final path.
358
359 If you manually move a linked worktree, you need to update the `gitdir` file
360 in the entry's directory. For example, if a linked worktree is moved
361 to `/newpath/test-next` and its `.git` file points to
362 `/path/main/.git/worktrees/test-next`, then update
363 `/path/main/.git/worktrees/test-next/gitdir` to reference `/newpath/test-next`
364 instead. Better yet, run `git worktree repair` to reestablish the connection
365 automatically.
366
367 To prevent a `$GIT_DIR/worktrees` entry from being pruned (which
368 can be useful in some situations, such as when the
369 entry's worktree is stored on a portable device), use the
370 `git worktree lock` command, which adds a file named
371 `locked` to the entry's directory. The file contains the reason in
372 plain text. For example, if a linked worktree's `.git` file points
373 to `/path/main/.git/worktrees/test-next` then a file named
374 `/path/main/.git/worktrees/test-next/locked` will prevent the
375 `test-next` entry from being pruned. See
376 linkgit:gitrepository-layout[5] for details.
377
378 When `extensions.worktreeConfig` is enabled, the config file
379 `.git/worktrees/<id>/config.worktree` is read after `.git/config` is.
380
381 LIST OUTPUT FORMAT
382 ------------------
383 The `worktree list` command has two output formats. The default format shows the
384 details on a single line with columns. For example:
385
386 ------------
387 $ git worktree list
388 /path/to/bare-source (bare)
389 /path/to/linked-worktree abcd1234 [master]
390 /path/to/other-linked-worktree 1234abc (detached HEAD)
391 ------------
392
393 The command also shows annotations for each worktree, according to its state.
394 These annotations are:
395
396 * `locked`, if the worktree is locked.
397 * `prunable`, if the worktree can be pruned via `git worktree prune`.
398
399 ------------
400 $ git worktree list
401 /path/to/linked-worktree abcd1234 [master]
402 /path/to/locked-worktree acbd5678 (brancha) locked
403 /path/to/prunable-worktree 5678abc (detached HEAD) prunable
404 ------------
405
406 For these annotations, a reason might also be available and this can be
407 seen using the verbose mode. The annotation is then moved to the next line
408 indented followed by the additional information.
409
410 ------------
411 $ git worktree list --verbose
412 /path/to/linked-worktree abcd1234 [master]
413 /path/to/locked-worktree-no-reason abcd5678 (detached HEAD) locked
414 /path/to/locked-worktree-with-reason 1234abcd (brancha)
415 locked: worktree path is mounted on a portable device
416 /path/to/prunable-worktree 5678abc1 (detached HEAD)
417 prunable: gitdir file points to non-existent location
418 ------------
419
420 Note that the annotation is moved to the next line if the additional
421 information is available, otherwise it stays on the same line as the
422 worktree itself.
423
424 Porcelain Format
425 ~~~~~~~~~~~~~~~~
426 The porcelain format has a line per attribute. If `-z` is given then the lines
427 are terminated with NUL rather than a newline. Attributes are listed with a
428 label and value separated by a single space. Boolean attributes (like `bare`
429 and `detached`) are listed as a label only, and are present only
430 if the value is true. Some attributes (like `locked`) can be listed as a label
431 only or with a value depending upon whether a reason is available. The first
432 attribute of a worktree is always `worktree`, an empty line indicates the
433 end of the record. For example:
434
435 ------------
436 $ git worktree list --porcelain
437 worktree /path/to/bare-source
438 bare
439
440 worktree /path/to/linked-worktree
441 HEAD abcd1234abcd1234abcd1234abcd1234abcd1234
442 branch refs/heads/master
443
444 worktree /path/to/other-linked-worktree
445 HEAD 1234abc1234abc1234abc1234abc1234abc1234a
446 detached
447
448 worktree /path/to/linked-worktree-locked-no-reason
449 HEAD 5678abc5678abc5678abc5678abc5678abc5678c
450 branch refs/heads/locked-no-reason
451 locked
452
453 worktree /path/to/linked-worktree-locked-with-reason
454 HEAD 3456def3456def3456def3456def3456def3456b
455 branch refs/heads/locked-with-reason
456 locked reason why is locked
457
458 worktree /path/to/linked-worktree-prunable
459 HEAD 1233def1234def1234def1234def1234def1234b
460 detached
461 prunable gitdir file points to non-existent location
462
463 ------------
464
465 Unless `-z` is used any "unusual" characters in the lock reason such as newlines
466 are escaped and the entire reason is quoted as explained for the
467 configuration variable `core.quotePath` (see linkgit:git-config[1]).
468 For Example:
469
470 ------------
471 $ git worktree list --porcelain
472 ...
473 locked "reason\nwhy is locked"
474 ...
475 ------------
476
477 EXAMPLES
478 --------
479 You are in the middle of a refactoring session and your boss comes in and
480 demands that you fix something immediately. You might typically use
481 linkgit:git-stash[1] to store your changes away temporarily, however, your
482 working tree is in such a state of disarray (with new, moved, and removed
483 files, and other bits and pieces strewn around) that you don't want to risk
484 disturbing any of it. Instead, you create a temporary linked worktree to
485 make the emergency fix, remove it when done, and then resume your earlier
486 refactoring session.
487
488 ------------
489 $ git worktree add -b emergency-fix ../temp master
490 $ pushd ../temp
491 # ... hack hack hack ...
492 $ git commit -a -m 'emergency fix for boss'
493 $ popd
494 $ git worktree remove ../temp
495 ------------
496
497 BUGS
498 ----
499 Multiple checkout in general is still experimental, and the support
500 for submodules is incomplete. It is NOT recommended to make multiple
501 checkouts of a superproject.
502
503 GIT
504 ---
505 Part of the linkgit:git[1] suite