[PATCH] add option -n (--no-checkout) to git-worktree add

[Ray Zhang <zhanglei002@gmail.com>]

By adding option -n, we can make some customizations before checkout, like sparse checkout, etc.

Signed-off-by: Ray Zhang <zhanglei002@gmail.com>
---
 builtin/worktree.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/builtin/worktree.c b/builtin/worktree.c
index 38b5609..14ca3d9 100644
--- a/builtin/worktree.c
+++ b/builtin/worktree.c
@@ -21,6 +21,7 @@ static const char * const worktree_usage[] = {
 struct add_opts {
 	int force;
 	int detach;
+	int no_checkout;
 	const char *new_branch;
 	int force_new_branch;
 };
@@ -284,11 +285,13 @@ static int add_worktree(const char *path, const char *refname,
 	if (ret)
 		goto done;
 
-	cp.argv = NULL;
-	argv_array_clear(&cp.args);
-	argv_array_pushl(&cp.args, "reset", "--hard", NULL);
-	cp.env = child_env.argv;
-	ret = run_command(&cp);
+	if (!opts->no_checkout) {
+		cp.argv = NULL;
+		argv_array_clear(&cp.args);
+		argv_array_pushl(&cp.args, "reset", "--hard", NULL);
+		cp.env = child_env.argv;
+		ret = run_command(&cp);
+	}
 	if (!ret) {
 		is_junk = 0;
 		free(junk_work_tree);
@@ -320,6 +323,7 @@ static int add(int ac, const char **av, const char *prefix)
 		OPT_STRING('B', NULL, &new_branch_force, N_("branch"),
 			   N_("create or reset a branch")),
 		OPT_BOOL(0, "detach", &opts.detach, N_("detach HEAD at named commit")),
+		OPT_BOOL('n', "no-checkout", &opts.no_checkout, N_("don't create a checkout")),
 		OPT_END()
 	};
 

--
https://github.com/git/git/pull/217