Abstract out the "name <email> date" handling of commit-tree.c

diff --git a/rev-list.c b/rev-list.c
index fb3372476ca51d0569e831bd6e4ad7efa068c898..fdb531caf6db4944f0612258697670eb00bc55ce 100644 (file)
--- a/rev-list.c
+++ b/rev-list.c
@@ -9,7 +9,6 @@
 #define INTERESTING    (1u << 1)
 #define COUNTED                (1u << 2)
 #define SHOWN          (1u << 3)
-#define DUPCHECK       (1u << 4)
 
 static const char rev_list_usage[] =
        "usage: git-rev-list [OPTION] commit-id <commit-id>\n"
@@ -204,6 +203,8 @@ static void mark_tree_uninteresting(struct tree *tree)
        if (obj->flags & UNINTERESTING)
                return;
        obj->flags |= UNINTERESTING;
+       if (!has_sha1_file(obj->sha1))
+               return;
        if (parse_tree(tree) < 0)
                die("bad tree %s", sha1_to_hex(obj->sha1));
        entry = tree->entries;
@@ -225,6 +226,17 @@ static void mark_parents_uninteresting(struct commit *commit)
        while (parents) {
                struct commit *commit = parents->item;
                commit->object.flags |= UNINTERESTING;
+
+               /*
+                * A missing commit is ok iff its parent is marked 
+                * uninteresting.
+                *
+                * We just mark such a thing parsed, so that when
+                * it is popped next time around, we won't be trying
+                * to parse it and get an error.
+                */
+               if (!has_sha1_file(commit->object.sha1))
+                       commit->object.parsed = 1;
                parents = parents->next;
        }
 }
@@ -355,12 +367,12 @@ static struct commit *get_commit_reference(const char *name, unsigned int flags)
        /*
         * Tag object? Look what it points to..
         */
-       if (object->type == tag_type) {
+       while (object->type == tag_type) {
                struct tag *tag = (struct tag *) object;
                object->flags |= flags;
                if (tag_objects && !(object->flags & UNINTERESTING))
                        add_pending_object(object, tag->tag);
-               object = tag->tagged;
+               object = parse_object(tag->tagged->sha1);
        }
 
        /*
@@ -372,6 +384,8 @@ static struct commit *get_commit_reference(const char *name, unsigned int flags)
                object->flags |= flags;
                if (parse_commit(commit) < 0)
                        die("unable to parse commit %s", name);
+               if (flags & UNINTERESTING)
+                       mark_parents_uninteresting(commit);
                return commit;
        }
 
@@ -411,10 +425,8 @@ static struct commit *get_commit_reference(const char *name, unsigned int flags)
 int main(int argc, char **argv)
 {
        struct commit_list *list = NULL;
-       struct commit_list *(*insert)(struct commit *, struct commit_list **);
        int i, limited = 0;
 
-       insert = insert_by_date;
        for (i = 1 ; i < argc; i++) {
                int flags;
                char *arg = argv[i];
@@ -464,7 +476,6 @@ int main(int argc, char **argv)
                }
                if (!strcmp(arg, "--merge-order")) {
                        merge_order = 1;
-                       insert = commit_list_insert;
                        continue;
                }
                if (!strcmp(arg, "--show-breaks")) {
@@ -488,13 +499,14 @@ int main(int argc, char **argv)
                commit = get_commit_reference(arg, flags);
                if (!commit)
                        continue;
-               if (commit->object.flags & DUPCHECK)
+               if (commit->object.flags & SEEN)
                        continue;
-               commit->object.flags |= DUPCHECK;
-               insert(commit, &list);
+               commit->object.flags |= SEEN;
+               commit_list_insert(commit, &list);
        }
 
        if (!merge_order) {             
+               sort_by_date(&list);
                if (limited)
                        list = limit_list(list);
                if (topo_order)