Make rev-list --objects work together with pathspecs
When traversing commits, the selection of commits would heed the list of
pathspecs passed, but subsequent walking of the trees of those commits
would not. This resulted in 'rev-list --objects HEAD -- <paths>'
displaying objects at unwanted paths.
Have process_tree() call tree_entry_interesting() to determine which paths
are interesting and should be walked.
Naturally, this change can provide a large speedup when paths are specified
together with --objects, since many tree entries are now correctly ignored.
Interestingly, though, this change also gives me a small (~1%) but
repeatable speedup even when no paths are specified with --objects.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/list-objects.c b/list-objects.c
index 8953548..61f6cc9 100644
--- a/list-objects.c
+++ b/list-objects.c
@@ -61,12 +61,15 @@
struct tree *tree,
show_object_fn show,
struct name_path *path,
+ struct strbuf *base,
const char *name)
{
struct object *obj = &tree->object;
struct tree_desc desc;
struct name_entry entry;
struct name_path me;
+ int all_interesting = (revs->diffopt.pathspec.nr == 0);
+ int baselen = base->len;
if (!revs->tree_objects)
return;
@@ -82,13 +85,32 @@
me.elem = name;
me.elem_len = strlen(name);
+ if (!all_interesting) {
+ strbuf_addstr(base, name);
+ if (base->len)
+ strbuf_addch(base, '/');
+ }
+
init_tree_desc(&desc, tree->buffer, tree->size);
while (tree_entry(&desc, &entry)) {
+ if (!all_interesting) {
+ int showit = tree_entry_interesting(&entry,
+ base, 0,
+ &revs->diffopt.pathspec);
+
+ if (showit < 0)
+ break;
+ else if (!showit)
+ continue;
+ else if (showit == 2)
+ all_interesting = 1;
+ }
+
if (S_ISDIR(entry.mode))
process_tree(revs,
lookup_tree(entry.sha1),
- show, &me, entry.path);
+ show, &me, base, entry.path);
else if (S_ISGITLINK(entry.mode))
process_gitlink(revs, entry.sha1,
show, &me, entry.path);
@@ -97,6 +119,7 @@
lookup_blob(entry.sha1),
show, &me, entry.path);
}
+ strbuf_setlen(base, baselen);
free(tree->buffer);
tree->buffer = NULL;
}
@@ -146,7 +169,9 @@
{
int i;
struct commit *commit;
+ struct strbuf base;
+ strbuf_init(&base, PATH_MAX);
while ((commit = get_revision(revs)) != NULL) {
add_pending_tree(revs, commit->tree);
show_commit(commit, data);
@@ -164,7 +189,7 @@
}
if (obj->type == OBJ_TREE) {
process_tree(revs, (struct tree *)obj, show_object,
- NULL, name);
+ NULL, &base, name);
continue;
}
if (obj->type == OBJ_BLOB) {
@@ -181,4 +206,5 @@
revs->pending.alloc = 0;
revs->pending.objects = NULL;
}
+ strbuf_release(&base);
}
