git-daemon: rewrite kindergarden, new option --max-connections

diff --git a/revision.c b/revision.c
index bbd563e6514f98ed5678314573fc4521b9fa0a95..e75079a6e1316c74b4dff702170134dc7559898f 100644 (file)
--- a/revision.c
+++ b/revision.c
@@ -260,7 +260,7 @@ static int tree_difference = REV_TREE_SAME;
 static void file_add_remove(struct diff_options *options,
                    int addremove, unsigned mode,
                    const unsigned char *sha1,
-                   const char *base, const char *path)
+                   const char *fullpath)
 {
        int diff = REV_TREE_DIFFERENT;
 
@@ -286,7 +286,7 @@ static void file_change(struct diff_options *options,
                 unsigned old_mode, unsigned new_mode,
                 const unsigned char *old_sha1,
                 const unsigned char *new_sha1,
-                const char *base, const char *path)
+                const char *fullpath)
 {
        tree_difference = REV_TREE_DIFFERENT;
        DIFF_OPT_SET(options, HAS_CHANGES);
@@ -413,10 +413,26 @@ static void try_to_simplify_commit(struct rev_info *revs, struct commit *commit)
        commit->object.flags |= TREESAME;
 }
 
-static int add_parents_to_list(struct rev_info *revs, struct commit *commit, struct commit_list **list)
+static void insert_by_date_cached(struct commit *p, struct commit_list **head,
+                   struct commit_list *cached_base, struct commit_list **cache)
+{
+       struct commit_list *new_entry;
+
+       if (cached_base && p->date < cached_base->item->date)
+               new_entry = insert_by_date(p, &cached_base->next);
+       else
+               new_entry = insert_by_date(p, head);
+
+       if (cache && (!*cache || p->date < (*cache)->item->date))
+               *cache = new_entry;
+}
+
+static int add_parents_to_list(struct rev_info *revs, struct commit *commit,
+                   struct commit_list **list, struct commit_list **cache_ptr)
 {
        struct commit_list *parent = commit->parents;
        unsigned left_flag;
+       struct commit_list *cached_base = cache_ptr ? *cache_ptr : NULL;
 
        if (commit->object.flags & ADDED)
                return 0;
@@ -446,7 +462,7 @@ static int add_parents_to_list(struct rev_info *revs, struct commit *commit, str
                        if (p->object.flags & SEEN)
                                continue;
                        p->object.flags |= SEEN;
-                       insert_by_date(p, list);
+                       insert_by_date_cached(p, list, cached_base, cache_ptr);
                }
                return 0;
        }
@@ -471,7 +487,7 @@ static int add_parents_to_list(struct rev_info *revs, struct commit *commit, str
                p->object.flags |= left_flag;
                if (!(p->object.flags & SEEN)) {
                        p->object.flags |= SEEN;
-                       insert_by_date(p, list);
+                       insert_by_date_cached(p, list, cached_base, cache_ptr);
                }
                if(revs->first_parent_only)
                        break;
@@ -612,7 +628,7 @@ static int limit_list(struct rev_info *revs)
 
                if (revs->max_age != -1 && (commit->date < revs->max_age))
                        obj->flags |= UNINTERESTING;
-               if (add_parents_to_list(revs, commit, &list) < 0)
+               if (add_parents_to_list(revs, commit, &list, NULL) < 0)
                        return -1;
                if (obj->flags & UNINTERESTING) {
                        mark_parents_uninteresting(commit);
@@ -986,7 +1002,7 @@ static int handle_revision_opt(struct rev_info *revs, int argc, const char **arg
            !strcmp(arg, "--no-walk") || !strcmp(arg, "--do-walk"))
        {
                unkv[(*unkc)++] = arg;
-               return 0;
+               return 1;
        }
 
        if (!prefixcmp(arg, "--max-count=")) {
@@ -1415,10 +1431,12 @@ enum rewrite_result {
 
 static enum rewrite_result rewrite_one(struct rev_info *revs, struct commit **pp)
 {
+       struct commit_list *cache = NULL;
+
        for (;;) {
                struct commit *p = *pp;
                if (!revs->limited)
-                       if (add_parents_to_list(revs, p, &revs->commits) < 0)
+                       if (add_parents_to_list(revs, p, &revs->commits, &cache) < 0)
                                return rewrite_one_error;
                if (p->parents && p->parents->next)
                        return rewrite_one_ok;
@@ -1542,7 +1560,7 @@ static struct commit *get_revision_1(struct rev_info *revs)
                        if (revs->max_age != -1 &&
                            (commit->date < revs->max_age))
                                continue;
-                       if (add_parents_to_list(revs, commit, &revs->commits) < 0)
+                       if (add_parents_to_list(revs, commit, &revs->commits, NULL) < 0)
                                return NULL;
                }