remote.c: add command line option parser for "--force-with-lease"

[thirdparty/git.git] / remote.c

diff --git a/remote.c b/remote.c
index b1ff7a208ff96a7ec634f48d9e51e35fb08d2174..0d383533d4eaabcb33a66428c21d7b8019c31223 100644 (file)
--- a/remote.c
+++ b/remote.c
@@ -1921,3 +1921,60 @@ struct ref *get_stale_heads(struct refspec *refs, int ref_count, struct ref *fet
        string_list_clear(&ref_names, 0);
        return stale_refs;
 }
+
+/*
+ * Compare-and-swap
+ */
+void clear_cas_option(struct push_cas_option *cas)
+{
+       int i;
+
+       for (i = 0; i < cas->nr; i++)
+               free(cas->entry[i].refname);
+       free(cas->entry);
+       memset(cas, 0, sizeof(*cas));
+}
+
+static struct push_cas *add_cas_entry(struct push_cas_option *cas,
+                                     const char *refname,
+                                     size_t refnamelen)
+{
+       struct push_cas *entry;
+       ALLOC_GROW(cas->entry, cas->nr + 1, cas->alloc);
+       entry = &cas->entry[cas->nr++];
+       memset(entry, 0, sizeof(*entry));
+       entry->refname = xmemdupz(refname, refnamelen);
+       return entry;
+}
+
+int parse_push_cas_option(struct push_cas_option *cas, const char *arg, int unset)
+{
+       const char *colon;
+       struct push_cas *entry;
+
+       if (unset) {
+               /* "--no-<option>" */
+               clear_cas_option(cas);
+               return 0;
+       }
+
+       if (!arg) {
+               /* just "--<option>" */
+               cas->use_tracking_for_rest = 1;
+               return 0;
+       }
+
+       /* "--<option>=refname" or "--<option>=refname:value" */
+       colon = strchrnul(arg, ':');
+       entry = add_cas_entry(cas, arg, colon - arg);
+       if (!*colon)
+               entry->use_tracking = 1;
+       else if (get_sha1(colon + 1, entry->expect))
+               return error("cannot parse expected object name '%s'", colon + 1);
+       return 0;
+}
+
+int parseopt_push_cas_option(const struct option *opt, const char *arg, int unset)
+{
+       return parse_push_cas_option(opt->value, arg, unset);
+}