add-interactive: handle deletion of empty files

diff --git a/builtin-checkout.c b/builtin-checkout.c
index 8b942bafeb7e5a4b1f9be912109184be002f14f1..d050c3789fcdaf1b50c12a20c28cbeaf774048eb 100644 (file)
--- a/builtin-checkout.c
+++ b/builtin-checkout.c
@@ -402,7 +402,9 @@ static int merge_working_tree(struct checkout_opts *opts,
                topts.dir = xcalloc(1, sizeof(*topts.dir));
                topts.dir->flags |= DIR_SHOW_IGNORED;
                topts.dir->exclude_per_dir = ".gitignore";
-               tree = parse_tree_indirect(old->commit->object.sha1);
+               tree = parse_tree_indirect(old->commit ?
+                                          old->commit->object.sha1 :
+                                          (unsigned char *)EMPTY_TREE_SHA1_BIN);
                init_tree_desc(&trees[0], tree->buffer, tree->size);
                tree = parse_tree_indirect(new->commit->object.sha1);
                init_tree_desc(&trees[1], tree->buffer, tree->size);
@@ -541,14 +543,6 @@ static int switch_branches(struct checkout_opts *opts, struct branch_info *new)
                parse_commit(new->commit);
        }
 
-       if (!old.commit && !opts->force) {
-               if (!opts->quiet) {
-                       warning("You appear to be on a branch yet to be born.");
-                       warning("Forcing checkout of %s.", new->name);
-               }
-               opts->force = 1;
-       }
-
        ret = merge_working_tree(opts, &old, new);
        if (ret)
                return ret;
@@ -598,7 +592,7 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
                            2),
                OPT_SET_INT('3', "theirs", &opts.writeout_stage, "stage",
                            3),
-               OPT_BOOLEAN('f', NULL, &opts.force, "force"),
+               OPT_BOOLEAN('f', "force", &opts.force, "force"),
                OPT_BOOLEAN('m', "merge", &opts.merge, "merge"),
                OPT_STRING(0, "conflict", &conflict_style, "style",
                           "conflict style (merge or diff3)"),