commit: allow associating auxiliary info on-demand

diff --git a/reachable.c b/reachable.c
index 3fc6b1d320faad3a528db016a0d800ff1bdde4f0..e7e6a1e342200bbf4c37bd561e6a68222349418e 100644 (file)
--- a/reachable.c
+++ b/reachable.c
@@ -7,11 +7,25 @@
 #include "revision.h"
 #include "reachable.h"
 #include "cache-tree.h"
+#include "progress.h"
+
+struct connectivity_progress {
+       struct progress *progress;
+       unsigned long count;
+};
+
+static void update_progress(struct connectivity_progress *cp)
+{
+       cp->count++;
+       if ((cp->count & 1023) == 0)
+               display_progress(cp->progress, cp->count);
+}
 
 static void process_blob(struct blob *blob,
                         struct object_array *p,
                         struct name_path *path,
-                        const char *name)
+                        const char *name,
+                        struct connectivity_progress *cp)
 {
        struct object *obj = &blob->object;
 
@@ -20,6 +34,7 @@ static void process_blob(struct blob *blob,
        if (obj->flags & SEEN)
                return;
        obj->flags |= SEEN;
+       update_progress(cp);
        /* Nothing to do, really .. The blob lookup was the important part */
 }
 
@@ -34,7 +49,8 @@ static void process_gitlink(const unsigned char *sha1,
 static void process_tree(struct tree *tree,
                         struct object_array *p,
                         struct name_path *path,
-                        const char *name)
+                        const char *name,
+                        struct connectivity_progress *cp)
 {
        struct object *obj = &tree->object;
        struct tree_desc desc;
@@ -46,6 +62,7 @@ static void process_tree(struct tree *tree,
        if (obj->flags & SEEN)
                return;
        obj->flags |= SEEN;
+       update_progress(cp);
        if (parse_tree(tree) < 0)
                die("bad tree object %s", sha1_to_hex(obj->sha1));
        add_object(obj, p, path, name);
@@ -57,23 +74,25 @@ static void process_tree(struct tree *tree,
 
        while (tree_entry(&desc, &entry)) {
                if (S_ISDIR(entry.mode))
-                       process_tree(lookup_tree(entry.sha1), p, &me, entry.path);
+                       process_tree(lookup_tree(entry.sha1), p, &me, entry.path, cp);
                else if (S_ISGITLINK(entry.mode))
                        process_gitlink(entry.sha1, p, &me, entry.path);
                else
-                       process_blob(lookup_blob(entry.sha1), p, &me, entry.path);
+                       process_blob(lookup_blob(entry.sha1), p, &me, entry.path, cp);
        }
        free(tree->buffer);
        tree->buffer = NULL;
 }
 
-static void process_tag(struct tag *tag, struct object_array *p, const char *name)
+static void process_tag(struct tag *tag, struct object_array *p,
+                       const char *name, struct connectivity_progress *cp)
 {
        struct object *obj = &tag->object;
 
        if (obj->flags & SEEN)
                return;
        obj->flags |= SEEN;
+       update_progress(cp);
 
        if (parse_tag(tag) < 0)
                die("bad tag object %s", sha1_to_hex(obj->sha1));
@@ -81,15 +100,18 @@ static void process_tag(struct tag *tag, struct object_array *p, const char *nam
                add_object(tag->tagged, p, NULL, name);
 }
 
-static void walk_commit_list(struct rev_info *revs)
+static void walk_commit_list(struct rev_info *revs,
+                            struct connectivity_progress *cp)
 {
        int i;
        struct commit *commit;
        struct object_array objects = OBJECT_ARRAY_INIT;
 
        /* Walk all commits, process their trees */
-       while ((commit = get_revision(revs)) != NULL)
-               process_tree(commit->tree, &objects, NULL, "");
+       while ((commit = get_revision(revs)) != NULL) {
+               process_tree(commit->tree, &objects, NULL, "", cp);
+               update_progress(cp);
+       }
 
        /* Then walk all the pending objects, recursively processing them too */
        for (i = 0; i < revs->pending.nr; i++) {
@@ -97,15 +119,15 @@ static void walk_commit_list(struct rev_info *revs)
                struct object *obj = pending->item;
                const char *name = pending->name;
                if (obj->type == OBJ_TAG) {
-                       process_tag((struct tag *) obj, &objects, name);
+                       process_tag((struct tag *) obj, &objects, name, cp);
                        continue;
                }
                if (obj->type == OBJ_TREE) {
-                       process_tree((struct tree *)obj, &objects, NULL, name);
+                       process_tree((struct tree *)obj, &objects, NULL, name, cp);
                        continue;
                }
                if (obj->type == OBJ_BLOB) {
-                       process_blob((struct blob *)obj, &objects, NULL, name);
+                       process_blob((struct blob *)obj, &objects, NULL, name, cp);
                        continue;
                }
                die("unknown pending object %s (%s)", sha1_to_hex(obj->sha1), name);
@@ -130,11 +152,9 @@ static int add_one_reflog_ent(unsigned char *osha1, unsigned char *nsha1,
 
 static int add_one_ref(const char *path, const unsigned char *sha1, int flag, void *cb_data)
 {
-       struct object *object = parse_object(sha1);
+       struct object *object = parse_object_or_die(sha1, path);
        struct rev_info *revs = (struct rev_info *)cb_data;
 
-       if (!object)
-               die("bad object ref: %s:%s", path, sha1_to_hex(sha1));
        add_pending_object(revs, object, "");
 
        return 0;
@@ -191,8 +211,11 @@ static void add_cache_refs(struct rev_info *revs)
                add_cache_tree(active_cache_tree, revs);
 }
 
-void mark_reachable_objects(struct rev_info *revs, int mark_reflog)
+void mark_reachable_objects(struct rev_info *revs, int mark_reflog,
+                           struct progress *progress)
 {
+       struct connectivity_progress cp;
+
        /*
         * Set up revision parsing, and mark us as being interested
         * in all object types, not just commits.
@@ -211,11 +234,15 @@ void mark_reachable_objects(struct rev_info *revs, int mark_reflog)
        if (mark_reflog)
                for_each_reflog(add_one_reflog, revs);
 
+       cp.progress = progress;
+       cp.count = 0;
+
        /*
         * Set up the revision walk - this will move all commits
         * from the pending list to the commit walking list.
         */
        if (prepare_revision_walk(revs))
                die("revision walk setup failed");
-       walk_commit_list(revs);
+       walk_commit_list(revs, &cp);
+       display_progress(cp.progress, cp.count);
 }