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| author | Nguyễn Thái Ngọc Duy <pclouds@gmail.com> | 2014-11-30 15:24:48 +0700 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2014-12-01 11:00:17 -0800 |
| commit | 23af91d102e1efaff33b77ab7746356835a3d600 (patch) | |
| tree | 0746595338cd8933f368287199b26f8216ed2340 /Documentation | |
| parent | 529fef20cf94dbd5c16f7a239ffc2b06f3cf8bb7 (diff) | |
| download | git-23af91d102e1efaff33b77ab7746356835a3d600.tar.gz | |
prune: strategies for linked checkouts
(alias R=$GIT_COMMON_DIR/worktrees/<id>)
- linked checkouts are supposed to keep its location in $R/gitdir up
to date. The use case is auto fixup after a manual checkout move.
- linked checkouts are supposed to update mtime of $R/gitdir. If
$R/gitdir's mtime is older than a limit, and it points to nowhere,
worktrees/<id> is to be pruned.
- If $R/locked exists, worktrees/<id> is not supposed to be pruned. If
$R/locked exists and $R/gitdir's mtime is older than a really long
limit, warn about old unused repo.
- "git checkout --to" is supposed to make a hard link named $R/link
pointing to the .git file on supported file systems to help detect
the user manually deleting the checkout. If $R/link exists and its
link count is greated than 1, the repo is kept.
Helped-by: Marc Branchaud <marcnarc@xiplink.com>
Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Helped-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Marc Branchaud <marcnarc@xiplink.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/git-checkout.txt | 20 | ||||
| -rw-r--r-- | Documentation/git-prune.txt | 3 | ||||
| -rw-r--r-- | Documentation/gitrepository-layout.txt | 19 |
3 files changed, 42 insertions, 0 deletions
diff --git a/Documentation/git-checkout.txt b/Documentation/git-checkout.txt index c101575ac2..35675da2b8 100644 --- a/Documentation/git-checkout.txt +++ b/Documentation/git-checkout.txt @@ -434,6 +434,26 @@ 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. +When you are done with a linked working tree you can simply delete it. +You can clean up any stale $GIT_DIR/worktrees entries via `git prune +--worktrees` in the main or any linked working tree. + +If you move a linked working directory to another file system, or +within a file system that does not support hard links, you need to run +at least one git command inside the linked working directory +(e.g. `git status`) in order to update its entry in $GIT_DIR/worktrees +so that it does not get automatically removed. + +To prevent `git prune --worktrees` from deleting a $GIT_DIR/worktrees +entry (which can be useful in some situations, such as when the +entry's working tree is stored on a portable device), add a file named +'locked' to the entry's directory. The file contains the reason in +plain text. For example, if a linked working tree'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 +linkgit:gitrepository-layout[5] for details. + EXAMPLES -------- diff --git a/Documentation/git-prune.txt b/Documentation/git-prune.txt index 7a493c80f7..1cf3bed4ab 100644 --- a/Documentation/git-prune.txt +++ b/Documentation/git-prune.txt @@ -48,6 +48,9 @@ OPTIONS --expire <time>:: Only expire loose objects older than <time>. +--worktrees:: + Prune dead working tree information in $GIT_DIR/worktrees. + <head>...:: In addition to objects reachable from any of our references, keep objects diff --git a/Documentation/gitrepository-layout.txt b/Documentation/gitrepository-layout.txt index 82284506a4..2b30a921c3 100644 --- a/Documentation/gitrepository-layout.txt +++ b/Documentation/gitrepository-layout.txt @@ -259,6 +259,25 @@ worktrees:: $GIT_COMMON_DIR is set and "$GIT_COMMON_DIR/worktrees" will be used instead. +worktrees/<id>/gitdir:: + A text file containing the absolute path back to the .git file + that points to here. This is used to check if the linked + repository has been manually removed and there is no need to + keep this directory any more. mtime of this file should be + updated every time the linked repository is accessed. + +worktrees/<id>/locked:: + If this file exists, the linked repository may be on a + portable device and not available. It does not mean that the + linked repository is gone and `worktrees/<id>` could be + removed. The file's content contains a reason string on why + the repository is locked. + +worktrees/<id>/link:: + If this file exists, it is a hard link to the linked .git + file. It is used to detect if the linked repository is + manually removed. + SEE ALSO -------- linkgit:git-init[1], |