diff options
Diffstat (limited to 'builtin/checkout.c')
| -rw-r--r-- | builtin/checkout.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/builtin/checkout.c b/builtin/checkout.c index f1984d9933..a76aa2a6fd 100644 --- a/builtin/checkout.c +++ b/builtin/checkout.c @@ -922,6 +922,17 @@ static int parse_branchname_arg(int argc, const char **argv, return argcount; } +static int switch_unborn_to_new_branch(struct checkout_opts *opts) +{ + int status; + struct strbuf branch_ref = STRBUF_INIT; + + strbuf_addf(&branch_ref, "refs/heads/%s", opts->new_branch); + status = create_symref("HEAD", branch_ref.buf, "checkout -b"); + strbuf_release(&branch_ref); + return status; +} + int cmd_checkout(int argc, const char **argv, const char *prefix) { struct checkout_opts opts; @@ -1093,5 +1104,13 @@ int cmd_checkout(int argc, const char **argv, const char *prefix) if (opts.writeout_stage) die(_("--ours/--theirs is incompatible with switching branches.")); + if (!new.commit) { + unsigned char rev[20]; + int flag; + + if (!read_ref_full("HEAD", rev, 0, &flag) && + (flag & REF_ISSYMREF) && is_null_sha1(rev)) + return switch_unborn_to_new_branch(&opts); + } return switch_branches(&opts, &new); } |