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-rw-r--r--branch.c27
-rw-r--r--branch.h8
-rw-r--r--builtin/branch.c32
-rwxr-xr-xt/t3200-branch.sh15
4 files changed, 47 insertions, 35 deletions
diff --git a/branch.c b/branch.c
index e5614b5..f64062b 100644
--- a/branch.c
+++ b/branch.c
@@ -830,30 +830,3 @@ void die_if_checked_out(const char *branch, int ignore_current_worktree)
free_worktrees(worktrees);
}
-
-int replace_each_worktree_head_symref(const char *oldref, const char *newref,
- const char *logmsg)
-{
- int ret = 0;
- struct worktree **worktrees = get_worktrees();
- int i;
-
- for (i = 0; worktrees[i]; i++) {
- struct ref_store *refs;
-
- if (worktrees[i]->is_detached)
- continue;
- if (!worktrees[i]->head_ref)
- continue;
- if (strcmp(oldref, worktrees[i]->head_ref))
- continue;
-
- refs = get_worktree_ref_store(worktrees[i]);
- if (refs_create_symref(refs, "HEAD", newref, logmsg))
- ret = error(_("HEAD of working tree %s is not updated"),
- worktrees[i]->path);
- }
-
- free_worktrees(worktrees);
- return ret;
-}
diff --git a/branch.h b/branch.h
index ef56103..30c01ae 100644
--- a/branch.h
+++ b/branch.h
@@ -155,12 +155,4 @@ int read_branch_desc(struct strbuf *, const char *branch_name);
*/
void die_if_checked_out(const char *branch, int ignore_current_worktree);
-/*
- * Update all per-worktree HEADs pointing at the old ref to point the new ref.
- * This will be used when renaming a branch. Returns 0 if successful, non-zero
- * otherwise.
- */
-int replace_each_worktree_head_symref(const char *oldref, const char *newref,
- const char *logmsg);
-
#endif
diff --git a/builtin/branch.c b/builtin/branch.c
index f63fd45..c7ace2f 100644
--- a/builtin/branch.c
+++ b/builtin/branch.c
@@ -509,6 +509,38 @@ static void reject_rebase_or_bisect_branch(const char *target)
free_worktrees(worktrees);
}
+/*
+ * Update all per-worktree HEADs pointing at the old ref to point the new ref.
+ * This will be used when renaming a branch. Returns 0 if successful, non-zero
+ * otherwise.
+ */
+static int replace_each_worktree_head_symref(const char *oldref, const char *newref,
+ const char *logmsg)
+{
+ int ret = 0;
+ struct worktree **worktrees = get_worktrees();
+ int i;
+
+ for (i = 0; worktrees[i]; i++) {
+ struct ref_store *refs;
+
+ if (worktrees[i]->is_detached)
+ continue;
+ if (!worktrees[i]->head_ref)
+ continue;
+ if (strcmp(oldref, worktrees[i]->head_ref))
+ continue;
+
+ refs = get_worktree_ref_store(worktrees[i]);
+ if (refs_create_symref(refs, "HEAD", newref, logmsg))
+ ret = error(_("HEAD of working tree %s is not updated"),
+ worktrees[i]->path);
+ }
+
+ free_worktrees(worktrees);
+ return ret;
+}
+
static void copy_or_rename_branch(const char *oldname, const char *newname, int copy, int force)
{
struct strbuf oldref = STRBUF_INIT, newref = STRBUF_INIT, logmsg = STRBUF_INIT;
diff --git a/t/t3200-branch.sh b/t/t3200-branch.sh
index 5a169b6..6b8b59f 100755
--- a/t/t3200-branch.sh
+++ b/t/t3200-branch.sh
@@ -239,6 +239,21 @@ test_expect_success 'git branch -M baz bam should succeed when baz is checked ou
git worktree prune
'
+test_expect_success 'git branch -M fails if updating any linked working tree fails' '
+ git worktree add -b baz bazdir1 &&
+ git worktree add -f bazdir2 baz &&
+ touch .git/worktrees/bazdir1/HEAD.lock &&
+ test_must_fail git branch -M baz bam &&
+ test $(git -C bazdir2 rev-parse --abbrev-ref HEAD) = bam &&
+ git branch -M bam baz &&
+ rm .git/worktrees/bazdir1/HEAD.lock &&
+ touch .git/worktrees/bazdir2/HEAD.lock &&
+ test_must_fail git branch -M baz bam &&
+ test $(git -C bazdir1 rev-parse --abbrev-ref HEAD) = bam &&
+ rm -rf bazdir1 bazdir2 &&
+ git worktree prune
+'
+
test_expect_success 'git branch -M baz bam should succeed within a worktree in which baz is checked out' '
git checkout -b baz &&
git worktree add -f bazdir baz &&