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

diff --git a/rev-list.c b/rev-list.c
index abb611f8b50a97b96981bec606a2eb85b8888596..fdb531caf6db4944f0612258697670eb00bc55ce 100644 (file)
--- a/rev-list.c
+++ b/rev-list.c
@@ -8,17 +8,21 @@
 #define SEEN           (1u << 0)
 #define INTERESTING    (1u << 1)
 #define COUNTED                (1u << 2)
-#define SHOWN          (LAST_EPOCH_FLAG << 2)
+#define SHOWN          (1u << 3)
 
 static const char rev_list_usage[] =
        "usage: git-rev-list [OPTION] commit-id <commit-id>\n"
                      "  --max-count=nr\n"
                      "  --max-age=epoch\n"
                      "  --min-age=epoch\n"
+                     "  --bisect\n"
+                     "  --objects\n"
+                     "  --unpacked\n"
                      "  --header\n"
                      "  --pretty\n"
                      "  --merge-order [ --show-breaks ]";
 
+static int unpacked = 0;
 static int bisect_list = 0;
 static int tag_objects = 0;
 static int tree_objects = 0;
@@ -34,6 +38,7 @@ static enum cmit_fmt commit_format = CMIT_FMT_RAW;
 static int merge_order = 0;
 static int show_breaks = 0;
 static int stop_traversal = 0;
+static int topo_order = 0;
 
 static void show_commit(struct commit *commit)
 {
@@ -59,24 +64,21 @@ static void show_commit(struct commit *commit)
                static char pretty_header[16384];
                pretty_print_commit(commit_format, commit->buffer, ~0, pretty_header, sizeof(pretty_header));
                printf("%s%c", pretty_header, hdr_termination);
-       }       
+       }
+       fflush(stdout);
 }
 
 static int filter_commit(struct commit * commit)
 {
-       if (merge_order && stop_traversal && commit->object.flags & BOUNDARY)
+       if (stop_traversal && (commit->object.flags & BOUNDARY))
                return STOP;
        if (commit->object.flags & (UNINTERESTING|SHOWN))
                return CONTINUE;
        if (min_age != -1 && (commit->date > min_age))
                return CONTINUE;
        if (max_age != -1 && (commit->date < max_age)) {
-               if (!merge_order)
-                       return STOP;
-               else {
-                       stop_traversal = 1;
-                       return CONTINUE;
-               }
+               stop_traversal=1;
+               return merge_order?CONTINUE:STOP;
        }
        if (max_count != -1 && !max_count--)
                return STOP;
@@ -201,6 +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;
@@ -222,6 +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;
        }
 }
@@ -318,6 +333,8 @@ static struct commit_list *limit_list(struct commit_list *list)
                struct commit *commit = pop_most_recent_commit(&list, SEEN);
                struct object *obj = &commit->object;
 
+               if (unpacked && has_sha1_pack(obj->sha1))
+                       obj->flags |= UNINTERESTING;
                if (obj->flags & UNINTERESTING) {
                        mark_parents_uninteresting(commit);
                        if (everybody_uninteresting(list))
@@ -350,12 +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);
        }
 
        /*
@@ -367,6 +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;
        }
 
@@ -450,14 +469,24 @@ int main(int argc, char **argv)
                        blob_objects = 1;
                        continue;
                }
-               if (!strncmp(arg, "--merge-order", 13)) {
+               if (!strcmp(arg, "--unpacked")) {
+                       unpacked = 1;
+                       limited = 1;
+                       continue;
+               }
+               if (!strcmp(arg, "--merge-order")) {
                        merge_order = 1;
                        continue;
                }
-               if (!strncmp(arg, "--show-breaks", 13)) {
+               if (!strcmp(arg, "--show-breaks")) {
                        show_breaks = 1;
                        continue;
                }
+               if (!strcmp(arg, "--topo-order")) {
+                       topo_order = 1;
+                       limited = 1;
+                       continue;
+               }
 
                flags = 0;
                if (*arg == '^') {
@@ -470,12 +499,18 @@ int main(int argc, char **argv)
                commit = get_commit_reference(arg, flags);
                if (!commit)
                        continue;
+               if (commit->object.flags & SEEN)
+                       continue;
+               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)
+                       sort_in_topological_order(&list);
                show_commit_list(list);
        } else {
                if (sort_list_in_merge_order(list, &process_commit)) {