Nguyễn Thái Ngọc Duy <pclo...@gmail.com> writes:
> Also add some more comments in this code because it takes too long to
> understand what it does (to me, who should be familiar enough to
> understand this code well!)
>
> Signed-off-by: Nguyễn Thái Ngọc Duy <pclo...@gmail.com>
> ---
The diff is harder to read than necessary (not your fault), but
splitting this into a separate helper makes sense to me.
Thanks.
> upload-pack.c | 39 ++++++++++++++++++++++++++-------------
> 1 file changed, 26 insertions(+), 13 deletions(-)
>
> diff --git a/upload-pack.c b/upload-pack.c
> index ee5d20b..bfb7985 100644
> --- a/upload-pack.c
> +++ b/upload-pack.c
> @@ -552,20 +552,10 @@ static void send_shallow(struct commit_list *result)
> }
> }
>
> -static void deepen(int depth, const struct object_array *shallows)
> +static void send_unshallow(const struct object_array *shallows)
> {
> - struct commit_list *result = NULL;
> int i;
> - if (depth == INFINITE_DEPTH && !is_repository_shallow())
> - for (i = 0; i < shallows->nr; i++) {
> - struct object *object = shallows->objects[i].item;
> - object->flags |= NOT_SHALLOW;
> - }
> - else
> - result = get_shallow_commits(&want_obj, depth,
> - SHALLOW, NOT_SHALLOW);
> - send_shallow(result);
> - free_commit_list(result);
> +
> for (i = 0; i < shallows->nr; i++) {
> struct object *object = shallows->objects[i].item;
> if (object->flags & NOT_SHALLOW) {
> @@ -573,7 +563,13 @@ static void deepen(int depth, const struct object_array
> *shallows)
> packet_write(1, "unshallow %s",
> oid_to_hex(&object->oid));
> object->flags &= ~CLIENT_SHALLOW;
> - /* make sure the real parents are parsed */
> + /*
> + * We want to _register_ "object" as shallow, but we
> + * also need to traverse object's parents to deepen a
> + * shallow clone. Unregister it for now so we can
> + * parse and add the parents to the want list, then
> + * re-register it.
> + */
> unregister_shallow(object->oid.hash);
> object->parsed = 0;
> parse_commit_or_die((struct commit *)object);
> @@ -588,6 +584,23 @@ static void deepen(int depth, const struct object_array
> *shallows)
> /* make sure commit traversal conforms to client */
> register_shallow(object->oid.hash);
> }
> +}
> +
> +static void deepen(int depth, const struct object_array *shallows)
> +{
> + struct commit_list *result = NULL;
> + int i;
> + if (depth == INFINITE_DEPTH && !is_repository_shallow())
> + for (i = 0; i < shallows->nr; i++) {
> + struct object *object = shallows->objects[i].item;
> + object->flags |= NOT_SHALLOW;
> + }
> + else
> + result = get_shallow_commits(&want_obj, depth,
> + SHALLOW, NOT_SHALLOW);
> + send_shallow(result);
> + free_commit_list(result);
> + send_unshallow(shallows);
> packet_flush(1);
> }
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