diff --git a/builtin/checkout.c b/builtin/checkout.c
index 757f9a08ddbaf102726a781b06d7294a4638984e..0ca8f6a2061b177410136fb89b988806a05eb16e 100644 (file)
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
topts.gently = opts->merge && old->commit;
topts.verbose_update = !opts->quiet;
topts.fn = twoway_merge;
- topts.dir = xcalloc(1, sizeof(*topts.dir));
- topts.dir->flags |= DIR_SHOW_IGNORED;
- topts.dir->exclude_per_dir = ".gitignore";
+ if (!ignored_are_precious) {
+ 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 ?
old->commit->object.sha1 :
(unsigned char *)EMPTY_TREE_SHA1_BIN);
int cmd_checkout(int argc, const char **argv, const char *prefix)
{
struct checkout_opts opts;
- unsigned char rev[20];
+ unsigned char rev[20], branch_rev[20];
const char *arg;
struct branch_info new;
struct tree *source_tree = NULL;
OPT_SET_INT('3', "theirs", &opts.writeout_stage, "checkout their version for unmerged files",
3),
OPT__FORCE(&opts.force, "force checkout (throw away local modifications)"),
+ OPT_BOOLEAN('i', "ignored-are-precious", &ignored_are_precious,
+ "fail when an ignored file needs to be overwritten"),
OPT_BOOLEAN('m', "merge", &opts.merge, "perform a 3-way merge with the new branch"),
OPT_STRING(0, "conflict", &conflict_style, "style",
"conflict style (merge or diff3)"),
argc--;
new.name = arg;
- if ((new.commit = lookup_commit_reference_gently(rev, 1))) {
- setup_branch_path(&new);
+ setup_branch_path(&new);
- if ((check_ref_format(new.path) == CHECK_REF_FORMAT_OK) &&
- resolve_ref(new.path, rev, 1, NULL))
- ;
- else
- new.path = NULL;
+ if (check_ref_format(new.path) == CHECK_REF_FORMAT_OK &&
+ resolve_ref(new.path, branch_rev, 1, NULL))
+ hashcpy(rev, branch_rev);
+ else
+ new.path = NULL; /* not an existing branch */
+
+ if (!(new.commit = lookup_commit_reference_gently(rev, 1))) {
+ /* not a commit */
+ source_tree = parse_tree_indirect(rev);
+ } else {
parse_commit(new.commit);
source_tree = new.commit->tree;
- } else
- source_tree = parse_tree_indirect(rev);
+ }
if (!source_tree) /* case (1): want a tree */
die("reference is not a tree: %s", arg);