From ea376fa7f2c209593bcc63008a2831fe013d4e39 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Thu, 12 Apr 2007 21:03:39 -0700 Subject: [PATCH] Teach git list-objects logic not to follow gitlinks This allows us to pack superprojects and thus clone them (but not yet check them out on the receiving side - that's the next patch) Signed-off-by: Linus Torvalds Signed-off-by: Junio C Hamano --- list-objects.c | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/list-objects.c b/list-objects.c index 2ba2c958e..310f8d390 100644 --- a/list-objects.c +++ b/list-objects.c @@ -25,6 +25,37 @@ static void process_blob(struct rev_info *revs, add_object(obj, p, path, name); } +/* + * Processing a gitlink entry currently does nothing, since + * we do not recurse into the subproject. + * + * We *could* eventually add a flag that actually does that, + * which would involve: + * - is the subproject actually checked out? + * - if so, see if the subproject has already been added + * to the alternates list, and add it if not. + * - process the commit (or tag) the gitlink points to + * recursively. + * + * However, it's unclear whether there is really ever any + * reason to see superprojects and subprojects as such a + * "unified" object pool (potentially resulting in a totally + * humongous pack - avoiding which was the whole point of + * having gitlinks in the first place!). + * + * So for now, there is just a note that we *could* follow + * the link, and how to do it. Whether it necessarily makes + * any sense what-so-ever to ever do that is another issue. + */ +static void process_gitlink(struct rev_info *revs, + const unsigned char *sha1, + struct object_array *p, + struct name_path *path, + const char *name) +{ + /* Nothing to do */ +} + static void process_tree(struct rev_info *revs, struct tree *tree, struct object_array *p, @@ -56,6 +87,9 @@ static void process_tree(struct rev_info *revs, process_tree(revs, lookup_tree(entry.sha1), p, &me, entry.path); + else if (S_ISDIRLNK(entry.mode)) + process_gitlink(revs, entry.sha1, + p, &me, entry.path); else process_blob(revs, lookup_blob(entry.sha1), -- 2.26.2