diff options
Diffstat (limited to 'builtin-update-ref.c')
| -rw-r--r-- | builtin-update-ref.c | 36 |
1 files changed, 20 insertions, 16 deletions
diff --git a/builtin-update-ref.c b/builtin-update-ref.c index 93c127196d..d90d11d2e3 100644 --- a/builtin-update-ref.c +++ b/builtin-update-ref.c @@ -4,14 +4,14 @@ #include "parse-options.h" static const char * const git_update_ref_usage[] = { - "git-update-ref [options] -d <refname> <oldval>", + "git-update-ref [options] -d <refname> [<oldval>]", "git-update-ref [options] <refname> <newval> [<oldval>]", NULL }; int cmd_update_ref(int argc, const char **argv, const char *prefix) { - const char *refname, *value, *oldval, *msg=NULL; + const char *refname, *oldval, *msg=NULL; unsigned char sha1[20], oldsha1[20]; int delete = 0, no_deref = 0; struct option options[] = { @@ -27,25 +27,29 @@ int cmd_update_ref(int argc, const char **argv, const char *prefix) if (msg && !*msg) die("Refusing to perform update with empty message."); - if (argc < 2 || argc > 3) - usage_with_options(git_update_ref_usage, options); - refname = argv[0]; - value = argv[1]; - oldval = argv[2]; - - if (get_sha1(value, sha1)) - die("%s: not a valid SHA1", value); - if (delete) { - if (oldval) + if (argc < 1 || argc > 2) + usage_with_options(git_update_ref_usage, options); + refname = argv[0]; + oldval = argv[1]; + } else { + const char *value; + if (argc < 2 || argc > 3) usage_with_options(git_update_ref_usage, options); - return delete_ref(refname, sha1); + refname = argv[0]; + value = argv[1]; + oldval = argv[2]; + if (get_sha1(value, sha1)) + die("%s: not a valid SHA1", value); } - hashclr(oldsha1); + hashclr(oldsha1); /* all-zero hash in case oldval is the empty string */ if (oldval && *oldval && get_sha1(oldval, oldsha1)) die("%s: not a valid old SHA1", oldval); - return update_ref(msg, refname, sha1, oldval ? oldsha1 : NULL, - no_deref ? REF_NODEREF : 0, DIE_ON_ERR); + if (delete) + return delete_ref(refname, oldval ? oldsha1 : NULL); + else + return update_ref(msg, refname, sha1, oldval ? oldsha1 : NULL, + no_deref ? REF_NODEREF : 0, DIE_ON_ERR); } |