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-rw-r--r--builtin/worktree.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/builtin/worktree.c b/builtin/worktree.c
index 48de7fc3b0..15bdb380c7 100644
--- a/builtin/worktree.c
+++ b/builtin/worktree.c
@@ -1,5 +1,6 @@
#include "cache.h"
#include "abspath.h"
+#include "advice.h"
#include "checkout.h"
#include "config.h"
#include "builtin.h"
@@ -39,6 +40,20 @@
#define BUILTIN_WORKTREE_UNLOCK_USAGE \
N_("git worktree unlock <worktree>")
+#define WORKTREE_ADD_ORPHAN_WITH_DASH_B_HINT_TEXT \
+ _("If you meant to create a worktree containing a new orphan branch\n" \
+ "(branch with no commits) for this repository, you can do so\n" \
+ "using the --orphan flag:\n" \
+ "\n" \
+ " git worktree add --orphan -b %s %s\n")
+
+#define WORKTREE_ADD_ORPHAN_NO_DASH_B_HINT_TEXT \
+ _("If you meant to create a worktree containing a new orphan branch\n" \
+ "(branch with no commits) for this repository, you can do so\n" \
+ "using the --orphan flag:\n" \
+ "\n" \
+ " git worktree add --orphan %s\n")
+
static const char * const git_worktree_usage[] = {
BUILTIN_WORKTREE_ADD_USAGE,
BUILTIN_WORKTREE_LIST_USAGE,
@@ -634,6 +649,7 @@ static int add(int ac, const char **av, const char *prefix)
const char *opt_track = NULL;
const char *lock_reason = NULL;
int keep_locked = 0;
+ int used_new_branch_options;
struct option options[] = {
OPT__FORCE(&opts.force,
N_("checkout <branch> even if already checked out in other worktree"),
@@ -686,6 +702,7 @@ static int add(int ac, const char **av, const char *prefix)
path = prefix_filename(prefix, av[0]);
branch = ac < 2 ? "HEAD" : av[1];
+ used_new_branch_options = new_branch || new_branch_force;
if (!strcmp(branch, "-"))
branch = "@{-1}";
@@ -728,6 +745,15 @@ static int add(int ac, const char **av, const char *prefix)
}
if (!opts.orphan && !lookup_commit_reference_by_name(branch)) {
+ int attempt_hint = !opts.quiet && (ac < 2);
+ if (attempt_hint && used_new_branch_options) {
+ advise_if_enabled(ADVICE_WORKTREE_ADD_ORPHAN,
+ WORKTREE_ADD_ORPHAN_WITH_DASH_B_HINT_TEXT,
+ new_branch, path);
+ } else if (attempt_hint) {
+ advise_if_enabled(ADVICE_WORKTREE_ADD_ORPHAN,
+ WORKTREE_ADD_ORPHAN_NO_DASH_B_HINT_TEXT, path);
+ }
die(_("invalid reference: %s"), branch);
}