git-worktree(1)

NAME#

git-worktree - Manage multiple working trees

SYNOPSIS#

git worktree add\n [-f] [--detach] [--checkout] [--lock [--reason <string>]]
\n
                   [--orphan] [(-b | -B) <new-branch>] <path> [<commit-ish>]
\ngit worktree list\n [-v | --porcelain [-z]]
\ngit worktree lock\n [--reason <string>] <worktree>
\ngit worktree move\n <worktree> <new-path>
\ngit worktree prune\n [-n] [-v] [--expire <expire>]
\ngit worktree remove\n [-f] <worktree>
\ngit worktree repair\n [<path>...]
\ngit worktree unlock\n <worktree>

DESCRIPTION#

Manage multiple working trees attached to the same repository.

A git repository can support multiple working trees, allowing you to check out more than one branch at a time. With git worktree add a new working tree is associated with the repository, along with additional metadata that differentiates that working tree from others in the same repository. The working tree, along with this metadata, is called a "worktree".

This new worktree is called a "linked worktree" as opposed to the "main worktree" prepared by git-init(1) or git-clone(1). A repository has one main worktree (if it’s not a bare repository) and zero or more linked worktrees. When you are done with a linked worktree, remove it with git worktree remove.

In its simplest form, git worktree add <path> automatically creates a new branch whose name is the final component of <path>, which is convenient if you plan to work on a new topic. For instance, git worktree add ../hotfix creates new branch hotfix and checks it out at path ../hotfix. To instead work on an existing branch in a new worktree, use git worktree add <path> <branch>. On the other hand, if you just plan to make some experimental changes or do testing without disturbing existing development, it is often convenient to create a throwaway worktree not associated with any branch. For instance, git worktree add -d <path> creates a new worktree with a detached HEAD at the same commit as the current branch.

If a working tree is deleted without using git worktree remove, then its associated administrative files, which reside in the repository (see "DETAILS" below), will eventually be removed automatically (see gc.worktreePruneExpire in git-config(1)), or you can run git worktree prune in the main or any linked worktree to clean up any stale administrative files.

If the working tree for a linked worktree is stored on a portable device or network share which is not always mounted, you can prevent its administrative files from being pruned by issuing the git worktree lock command, optionally specifying --reason to explain why the worktree is locked.

COMMANDS#

add <path> [<commit-ish>]

If <commit-ish> is a branch name (call it <branch>) and is not found, and neither -b nor -B nor --detach are used, but there does exist a tracking branch in exactly one remote (call it <remote>) with a matching name, treat as equivalent to:

$ git worktree add --track -b <branch> <path> <remote>/<branch>

If the branch exists in multiple remotes and one of them is named by the checkout.defaultRemote configuration variable, we’ll use that one for the purposes of disambiguation, even if the <branch> isn’t unique across all remotes. Set it to e.g. checkout.defaultRemote=origin to always checkout remote branches from there if <branch> is ambiguous but exists on the origin remote. See also checkout.defaultRemote in git-config(1).

If <commit-ish> is omitted and neither -b nor -B nor --detach used, then, as a convenience, the new worktree is associated with a branch (call it <branch>) named after $(basename <path>). If <branch> doesn’t exist, a new branch based on HEAD is automatically created as if -b <branch> was given. If <branch> does exist, it will be checked out in the new worktree, if it’s not checked out anywhere else, otherwise the command will refuse to create the worktree (unless --force is used).

If <commit-ish> is omitted, neither --detach, or --orphan is used, and there are no valid local branches (or remote branches if --guess-remote is specified) then, as a convenience, the new worktree is associated with a new unborn branch named <branch> (after $(basename <path>) if neither -b or -B is used) as if --orphan was passed to the command. In the event the repository has a remote and --guess-remote is used, but no remote or local branches exist, then the command fails with a warning reminding the user to fetch from their remote first (or override by using -f/--force).

list

lock

move

prune

remove

repair [<path>...]

For instance, if the main worktree (or bare repository) is moved, linked worktrees will be unable to locate it. Running repair in the main worktree will reestablish the connection from linked worktrees back to the main worktree.

Similarly, if the working tree for a linked worktree is moved without using git worktree move, the main worktree (or bare repository) will be unable to locate it. Running repair within the recently-moved worktree will reestablish the connection. If multiple linked worktrees are moved, running repair from any worktree with each tree’s new <path> as an argument, will reestablish the connection to all the specified paths.

If both the main worktree and linked worktrees have been moved manually, then running repair in the main worktree and specifying the new <path> of each linked worktree will reestablish all connections in both directions.

unlock

OPTIONS#

-f, --force

move refuses to move a locked worktree unless --force is specified twice. If the destination is already assigned to some other worktree but is missing (for instance, if <new-path> was deleted manually), then --force allows the move to proceed; use --force twice if the destination is locked.

remove refuses to remove an unclean worktree unless --force is used. To remove a locked worktree, specify --force twice.

-b <new-branch>, -B <new-branch>

-d, --detach

--[no-]checkout

--[no-]guess-remote

This can also be set up as the default behaviour by using the worktree.guessRemote config option.

--[no-]track

--lock

-n, --dry-run

--orphan

--porcelain

-z

-q, --quiet

-v, --verbose

With list, output additional information about worktrees (see below).

--expire <time>

With list, annotate missing worktrees as prunable if they are older than <time>.

--reason <string>

<worktree>

If the last path components in the worktree’s path is unique among worktrees, it can be used to identify a worktree. For example if you only have two worktrees, at /abc/def/ghi and /abc/def/ggg, then ghi or def/ghi is enough to point to the former worktree.

REFS#

When using multiple worktrees, some refs are shared between all worktrees, but others are specific to an individual worktree. One example is HEAD, which is different for each worktree. This section is about the sharing rules and how to access refs of one worktree from another.

In general, all pseudo refs are per-worktree and all refs starting with refs/ are shared. Pseudo refs are ones like HEAD which are directly under $GIT_DIR instead of inside $GIT_DIR/refs. There are exceptions, however: refs inside refs/bisect, refs/worktree and refs/rewritten are not shared.

Refs that are per-worktree can still be accessed from another worktree via two special paths, main-worktree and worktrees. The former gives access to per-worktree refs of the main worktree, while the latter to all linked worktrees.

For example, main-worktree/HEAD or main-worktree/refs/bisect/good resolve to the same value as the main worktree’s HEAD and refs/bisect/good respectively. Similarly, worktrees/foo/HEAD or worktrees/bar/refs/bisect/bad are the same as $GIT_COMMON_DIR/worktrees/foo/HEAD and $GIT_COMMON_DIR/worktrees/bar/refs/bisect/bad.

To access refs, it’s best not to look inside $GIT_DIR directly. Instead use commands such as git-rev-parse(1) or git-update-ref(1) which will handle refs correctly.

CONFIGURATION FILE#

By default, the repository config file is shared across all worktrees. If the config variables core.bare or core.worktree are present in the common config file and extensions.worktreeConfig is disabled, then they will be applied to the main worktree only.

In order to have worktree-specific configuration, you can turn on the worktreeConfig extension, e.g.:

$ git config extensions.worktreeConfig true

In this mode, specific configuration stays in the path pointed by git rev-parse --git-path config.worktree. You can add or update configuration in this file with git config --worktree. Older Git versions will refuse to access repositories with this extension.

Note that in this file, the exception for core.bare and core.worktree is gone. If they exist in $GIT_DIR/config, you must move them to the config.worktree of the main worktree. You may also take this opportunity to review and move other configuration that you do not want to share to all worktrees:

See the documentation of extensions.worktreeConfig in git-config(1) for more details.

DETAILS#

Each linked worktree has a private sub-directory in the repository’s $GIT_DIR/worktrees directory. The private sub-directory’s name is usually the base name of the linked worktree’s path, possibly appended with a number to make it unique. For example, when $GIT_DIR=/path/main/.git the command git worktree add /path/other/test-next next creates the linked worktree in /path/other/test-next and also creates a $GIT_DIR/worktrees/test-next directory (or $GIT_DIR/worktrees/test-next1 if test-next is already taken).

Within a linked worktree, $GIT_DIR is set to point to this private directory (e.g. /path/main/.git/worktrees/test-next in the example) and $GIT_COMMON_DIR is set to point back to the main worktree’s $GIT_DIR (e.g. /path/main/.git). These settings are made in a .git file located at the top directory of the linked worktree.

Path resolution via git rev-parse --git-path uses either $GIT_DIR or $GIT_COMMON_DIR depending on the path. For example, in the linked worktree git rev-parse --git-path HEAD returns /path/main/.git/worktrees/test-next/HEAD (not /path/other/test-next/.git/HEAD or /path/main/.git/HEAD) while git rev-parse --git-path refs/heads/master uses $GIT_COMMON_DIR and returns /path/main/.git/refs/heads/master, since refs are shared across all worktrees, except refs/bisect, refs/worktree and refs/rewritten.

See gitrepository-layout(5) for more information. The rule of thumb is do not make any assumption about whether a path belongs to $GIT_DIR or $GIT_COMMON_DIR when you need to directly access something inside $GIT_DIR. Use git rev-parse --git-path to get the final path.

If you manually move a linked worktree, you need to update the gitdir file in the entry’s directory. For example, if a linked worktree is moved to /newpath/test-next and its .git file points to /path/main/.git/worktrees/test-next, then update /path/main/.git/worktrees/test-next/gitdir to reference /newpath/test-next instead. Better yet, run git worktree repair to reestablish the connection automatically.

To prevent a $GIT_DIR/worktrees entry from being pruned (which can be useful in some situations, such as when the entry’s worktree is stored on a portable device), use the git worktree lock command, which adds a file named locked to the entry’s directory. The file contains the reason in plain text. For example, if a linked worktree’s .git file points to /path/main/.git/worktrees/test-next then a file named /path/main/.git/worktrees/test-next/locked will prevent the test-next entry from being pruned. See gitrepository-layout(5) for details.

When extensions.worktreeConfig is enabled, the config file .git/worktrees/<id>/config.worktree is read after .git/config is.

LIST OUTPUT FORMAT#

The worktree list command has two output formats. The default format shows the details on a single line with columns. For example:

$ git worktree list
/path/to/bare-source            (bare)
/path/to/linked-worktree        abcd1234 [master]
/path/to/other-linked-worktree  1234abc  (detached HEAD)

The command also shows annotations for each worktree, according to its state. These annotations are:

$ git worktree list
/path/to/linked-worktree    abcd1234 [master]
/path/to/locked-worktree    acbd5678 (brancha) locked
/path/to/prunable-worktree  5678abc  (detached HEAD) prunable

For these annotations, a reason might also be available and this can be seen using the verbose mode. The annotation is then moved to the next line indented followed by the additional information.

$ git worktree list --verbose
/path/to/linked-worktree              abcd1234 [master]
/path/to/locked-worktree-no-reason    abcd5678 (detached HEAD) locked
/path/to/locked-worktree-with-reason  1234abcd (brancha)
\n
        locked: worktree path is mounted on a portable device
/path/to/prunable-worktree            5678abc1 (detached HEAD)
\n
        prunable: gitdir file points to non-existent location

Note that the annotation is moved to the next line if the additional information is available, otherwise it stays on the same line as the worktree itself.

Porcelain Format#

The porcelain format has a line per attribute. If -z is given then the lines are terminated with NUL rather than a newline. Attributes are listed with a label and value separated by a single space. Boolean attributes (like bare and detached) are listed as a label only, and are present only if the value is true. Some attributes (like locked) can be listed as a label only or with a value depending upon whether a reason is available. The first attribute of a worktree is always worktree, an empty line indicates the end of the record. For example:

$ git worktree list --porcelain
worktree /path/to/bare-source
bare
worktree /path/to/linked-worktree
HEAD abcd1234abcd1234abcd1234abcd1234abcd1234
branch refs/heads/master
worktree /path/to/other-linked-worktree
HEAD 1234abc1234abc1234abc1234abc1234abc1234a
detached
worktree /path/to/linked-worktree-locked-no-reason
HEAD 5678abc5678abc5678abc5678abc5678abc5678c
branch refs/heads/locked-no-reason
locked
worktree /path/to/linked-worktree-locked-with-reason
HEAD 3456def3456def3456def3456def3456def3456b
branch refs/heads/locked-with-reason
locked reason why is locked
worktree /path/to/linked-worktree-prunable
HEAD 1233def1234def1234def1234def1234def1234b
detached
prunable gitdir file points to non-existent location

Unless -z is used any "unusual" characters in the lock reason such as newlines are escaped and the entire reason is quoted as explained for the configuration variable core.quotePath (see git-config(1)). For Example:

$ git worktree list --porcelain
...
locked "reason\nwhy is locked"
...

EXAMPLES#

You are in the middle of a refactoring session and your boss comes in and demands that you fix something immediately. You might typically use git-stash(1) to store your changes away temporarily, however, your working tree is in such a state of disarray (with new, moved, and removed files, and other bits and pieces strewn around) that you don’t want to risk disturbing any of it. Instead, you create a temporary linked worktree to make the emergency fix, remove it when done, and then resume your earlier refactoring session.

$ git worktree add -b emergency-fix ../temp master
$ pushd ../temp
# ... hack hack hack ...
$ git commit -a -m 'emergency fix for boss'
$ popd
$ git worktree remove ../temp

BUGS#

Multiple checkout in general is still experimental, and the support for submodules is incomplete. It is NOT recommended to make multiple checkouts of a superproject.

GIT#

Part of the git(1) suite