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-rw-r--r--Documentation/git-worktree.txt94
1 files changed, 89 insertions, 5 deletions
diff --git a/Documentation/git-worktree.txt b/Documentation/git-worktree.txt
index afc6576a14..cb86318f3e 100644
--- a/Documentation/git-worktree.txt
+++ b/Documentation/git-worktree.txt
@@ -60,6 +60,15 @@ 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
+linkgit: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>`
@@ -111,8 +120,16 @@ OPTIONS
--force::
By default, `add` refuses to create a new working tree when
`<commit-ish>` is a branch name and is already checked out by
- another working tree and `remove` refuses to remove an unclean
- working tree. This option overrides these safeguards.
+ another working tree, or if `<path>` is already assigned to some
+ working tree but is missing (for instance, if `<path>` was deleted
+ manually). This option overrides these safeguards. To add a missing but
+ locked working tree path, specify `--force` twice.
++
+`move` refuses to move a locked working tree unless `--force` is specified
+twice.
++
+`remove` refuses to remove an unclean working tree unless `--force` is used.
+To remove a locked working tree, specify `--force` twice.
-b <new-branch>::
-B <new-branch>::
@@ -164,6 +181,10 @@ This can also be set up as the default behaviour by using the
This format will remain stable across Git versions and regardless of user
configuration. See below for details.
+-q::
+--quiet::
+ With 'add', suppress feedback messages.
+
-v::
--verbose::
With `prune`, report all removals.
@@ -183,6 +204,65 @@ working trees, it can be used to identify worktrees. For example if
you only have two working trees, at "/abc/def/ghi" and "/abc/def/ggg",
then "ghi" or "def/ghi" is enough to point to the former working tree.
+REFS
+----
+In multiple working trees, some refs may be shared between all working
+trees, some refs are local. One example is HEAD is different for all
+working trees. This section is about the sharing rules and how to access
+refs of one working tree from another.
+
+In general, all pseudo refs are per working tree 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 one
+exception to this: refs inside refs/bisect and refs/worktree is not
+shared.
+
+Refs that are per working tree can still be accessed from another
+working tree via two special paths, main-worktree and worktrees. The
+former gives access to per-worktree refs of the main working tree,
+while the latter to all linked working trees.
+
+For example, main-worktree/HEAD or main-worktree/refs/bisect/good
+resolve to the same value as the main working tree'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 linkgit:git-rev-parse[1] or linkgit:git-update-ref[1]
+which will handle refs correctly.
+
+CONFIGURATION FILE
+------------------
+By default, the repository "config" file is shared across all working
+trees. If the config variables `core.bare` or `core.worktree` are
+already present in the config file, they will be applied to the main
+working trees only.
+
+In order to have configuration specific to working trees, you can turn
+on "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 you have them in $GIT_DIR/config before, you must move
+them to the `config.worktree` of the main working tree. You may also
+take this opportunity to review and move other configuration that you
+do not want to share to all working trees:
+
+ - `core.worktree` and `core.bare` should never be shared
+
+ - `core.sparseCheckout` is recommended per working tree, unless you
+ are sure you always use sparse checkout for all working trees.
+
DETAILS
-------
Each linked working tree has a private sub-directory in the repository's
@@ -207,7 +287,8 @@ linked working tree `git rev-parse --git-path HEAD` returns
`/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 working trees.
+since refs are shared across all working trees, except refs/bisect and
+refs/worktree.
See linkgit:gitrepository-layout[5] for more information. The rule of
thumb is do not make any assumption about whether a path belongs to
@@ -232,6 +313,9 @@ to `/path/main/.git/worktrees/test-next` then a file named
`test-next` entry from being pruned. See
linkgit: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
@@ -249,8 +333,8 @@ Porcelain Format
The porcelain format has a line per attribute. 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 only present if and only
-if the value is true. An empty line indicates the end of a worktree. For
-example:
+if the value is true. The first attribute of a worktree is always `worktree`,
+an empty line indicates the end of the record. For example:
------------
$ git worktree list --porcelain