append_one_rev(): rewrite to work with object_id

diff --git a/Documentation/git-checkout.txt b/Documentation/git-checkout.txt
index c101575ac237f3760b384ed99da90d685b332061..d263a5652f06777b987eefae4f14f2003d53448b 100644 (file)
--- a/Documentation/git-checkout.txt
+++ b/Documentation/git-checkout.txt
@@ -144,7 +144,7 @@ explicitly give a name with '-b' in such a case.
 
 --no-track::
        Do not set up "upstream" configuration, even if the
-       branch.autosetupmerge configuration variable is true.
+       branch.autoSetupMerge configuration variable is true.
 
 -l::
        Create the new branch's reflog; see linkgit:git-branch[1] for
@@ -210,7 +210,7 @@ the conflicted merge in the specified paths.
 --conflict=<style>::
        The same as --merge option above, but changes the way the
        conflicting hunks are presented, overriding the
-       merge.conflictstyle configuration variable.  Possible values are
+       merge.conflictStyle configuration variable.  Possible values are
        "merge" (default) and "diff3" (in addition to what is shown by
        "merge" style, shows the original contents).
 
@@ -232,6 +232,12 @@ section of linkgit:git-add[1] to learn how to operate the `--patch` mode.
        specific files such as HEAD, index... See "MULTIPLE WORKING
        TREES" section for more information.
 
+--ignore-other-worktrees::
+       `git checkout` refuses when the wanted ref is already checked
+       out by another worktree. This option makes it check the ref
+       out anyway. In other words, the ref can be held by more than one
+       worktree.
+
 <branch>::
        Branch to checkout; if it refers to a branch (i.e., a name that,
        when prepended with "refs/heads/", is a valid ref), then that
@@ -434,6 +440,32 @@ 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.
+The working tree's entry in the repository's $GIT_DIR/worktrees
+directory will eventually be removed automatically (see
+`gc.pruneworktreesexpire` in linkgit::git-config[1]), or you can run
+`git prune --worktrees` in the main or any linked working tree to
+clean up any stale entries in $GIT_DIR/worktrees.
+
+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 a $GIT_DIR/worktrees entry from from being pruned (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.
+
+Multiple checkout support for submodules is incomplete. It is NOT
+recommended to make multiple checkouts of a superproject.
+
 EXAMPLES
 --------