@@ -156,6 +156,16 @@ static int prune_cmp(const void *a, const void *b)
if ((c = fspathcmp(x->string, y->string)))
return c;
+ /*
+ * paths same; prune_dupes() removes all but the first worktree entry
+ * having the same path, so sort main worktree ('util' is NULL) above
+ * linked worktrees ('util' not NULL) since main worktree can't be
+ * removed
+ */
+ if (!x->util)
+ return -1;
+ if (!y->util)
+ return 1;
/* paths same; sort by .git/worktrees/<id> */
return strcmp(x->util, y->util);
}
@@ -174,6 +184,7 @@ static void prune_dups(struct string_list *l)
static void prune_worktrees(void)
{
struct strbuf reason = STRBUF_INIT;
+ struct strbuf main_path = STRBUF_INIT;
struct string_list kept = STRING_LIST_INIT_NODUP;
DIR *dir = opendir(git_path("worktrees"));
struct dirent *d;
@@ -191,6 +202,10 @@ static void prune_worktrees(void)
}
closedir(dir);
+ strbuf_add_absolute_path(&main_path, get_git_common_dir());
+ /* massage main worktree absolute path to match 'gitdir' content */
+ strbuf_strip_suffix(&main_path, "/.");
+ string_list_append(&kept, strbuf_detach(&main_path, NULL));
prune_dups(&kept);
string_list_clear(&kept, 1);
@@ -104,4 +104,16 @@ test_expect_success 'prune duplicate (linked/linked)' '
! test -d .git/worktrees/w2
'
+test_expect_success 'prune duplicate (main/linked)' '
+ test_when_finished rm -fr repo wt &&
+ test_create_repo repo &&
+ test_commit -C repo x &&
+ git -C repo worktree add --detach ../wt &&
+ rm -fr wt &&
+ mv repo wt &&
+ git -C wt worktree prune --verbose >actual &&
+ test_i18ngrep "duplicate entry" actual &&
+ ! test -d .git/worktrees/wt
+'
+
test_done
"git worktree prune" detects when multiple entries are associated with the same path and prunes the duplicates, however, it does not detect when a linked worktree points at the path of the main worktree. Although "git worktree add" disallows creating a new worktree with the same path as the main worktree, such a case can arise outside the control of Git even without the user mucking with .git/worktree/<id>/ administrative files. For instance: $ git clone foo.git $ git -C foo worktree add ../bar $ rm -rf bar $ mv foo bar $ git -C bar worktree list .../bar deadfeeb [master] .../bar deadfeeb [bar] Help the user recover from such corruption by extending "git worktree prune" to also detect when a linked worktree is associated with the path of the main worktree. Reported-by: Jonathan Müller <jonathanmueller.dev@gmail.com> Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> --- builtin/worktree.c | 15 +++++++++++++++ t/t2401-worktree-prune.sh | 12 ++++++++++++ 2 files changed, 27 insertions(+)