Merge branch 'dl/difftool-mergetool'

diff --git a/parse-options-cb.c b/parse-options-cb.c
index 2733393546d4d4dd9a55c5934531398f4a827ead..4b95d04a37c028322c6fbf7d3f1b59e0d541fdb3 100644 (file)
--- a/parse-options-cb.c
+++ b/parse-options-cb.c
@@ -22,8 +22,8 @@ int parse_opt_abbrev_cb(const struct option *opt, const char *arg, int unset)
                                     opt->long_name);
                if (v && v < MINIMUM_ABBREV)
                        v = MINIMUM_ABBREV;
-               else if (v > 40)
-                       v = 40;
+               else if (v > the_hash_algo->hexsz)
+                       v = the_hash_algo->hexsz;
        }
        *(int *)(opt->value) = v;
        return 0;
@@ -96,6 +96,23 @@ int parse_opt_commits(const struct option *opt, const char *arg, int unset)
        return 0;
 }
 
+int parse_opt_commit(const struct option *opt, const char *arg, int unset)
+{
+       struct object_id oid;
+       struct commit *commit;
+       struct commit **target = opt->value;
+
+       if (!arg)
+               return -1;
+       if (get_oid(arg, &oid))
+               return error("malformed object name %s", arg);
+       commit = lookup_commit_reference(the_repository, &oid);
+       if (!commit)
+               return error("no such commit %s", arg);
+       *target = commit;
+       return 0;
+}
+
 int parse_opt_object_name(const struct option *opt, const char *arg, int unset)
 {
        struct object_id oid;
@@ -112,6 +129,23 @@ int parse_opt_object_name(const struct option *opt, const char *arg, int unset)
        return 0;
 }
 
+int parse_opt_object_id(const struct option *opt, const char *arg, int unset)
+{
+       struct object_id oid;
+       struct object_id *target = opt->value;
+
+       if (unset) {
+               *target = null_oid;
+               return 0;
+       }
+       if (!arg)
+               return -1;
+       if (get_oid(arg, &oid))
+               return error(_("malformed object name '%s'"), arg);
+       *target = oid;
+       return 0;
+}
+
 int parse_opt_tertiary(const struct option *opt, const char *arg, int unset)
 {
        int *target = opt->value;