chore(3p/git): Unvendor git and track patches instead r/2903

This was vendored a long time ago under the expectation that keeping
it in sync with cgit would be easier this way, but it has proven not
to be a big issue.

On the other hand, a vendored copy of git is an annoying maintenance
burden. It is much easier to rebase the single (dottime) patch that we
have.

This removes the vendored copy of git and instead passes the git
source code to cgit via `pkgs.srcOnly`, which includes the applied
patch so that cgit can continue rendering dottime.

Change-Id: If31f62dea7ce688fd1b9050204e9378019775f2b

1 files changed, 0 insertions, 251 deletions

diff --git a/third_party/git/reachable.c b/third_party/git/reachable.c
deleted file mode 100644
index 77a60c70a5db..000000000000
--- a/third_party/git/reachable.c
+++ /dev/null
@@ -1,251 +0,0 @@
-#include "cache.h"
-#include "refs.h"
-#include "tag.h"
-#include "commit.h"
-#include "blob.h"
-#include "diff.h"
-#include "revision.h"
-#include "reachable.h"
-#include "cache-tree.h"
-#include "progress.h"
-#include "list-objects.h"
-#include "packfile.h"
-#include "worktree.h"
-#include "object-store.h"
-#include "pack-bitmap.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 int add_one_ref(const char *path, const struct object_id *oid,
-		       int flag, void *cb_data)
-{
-	struct rev_info *revs = (struct rev_info *)cb_data;
-	struct object *object;
-
-	if ((flag & REF_ISSYMREF) && (flag & REF_ISBROKEN)) {
-		warning("symbolic ref is dangling: %s", path);
-		return 0;
-	}
-
-	object = parse_object_or_die(oid, path);
-	add_pending_object(revs, object, "");
-
-	return 0;
-}
-
-/*
- * The traversal will have already marked us as SEEN, so we
- * only need to handle any progress reporting here.
- */
-static void mark_object(struct object *obj, const char *name, void *data)
-{
-	update_progress(data);
-}
-
-static void mark_commit(struct commit *c, void *data)
-{
-	mark_object(&c->object, NULL, data);
-}
-
-struct recent_data {
-	struct rev_info *revs;
-	timestamp_t timestamp;
-};
-
-static void add_recent_object(const struct object_id *oid,
-			      timestamp_t mtime,
-			      struct recent_data *data)
-{
-	struct object *obj;
-	enum object_type type;
-
-	if (mtime <= data->timestamp)
-		return;
-
-	/*
-	 * We do not want to call parse_object here, because
-	 * inflating blobs and trees could be very expensive.
-	 * However, we do need to know the correct type for
-	 * later processing, and the revision machinery expects
-	 * commits and tags to have been parsed.
-	 */
-	type = oid_object_info(the_repository, oid, NULL);
-	if (type < 0)
-		die("unable to get object info for %s", oid_to_hex(oid));
-
-	switch (type) {
-	case OBJ_TAG:
-	case OBJ_COMMIT:
-		obj = parse_object_or_die(oid, NULL);
-		break;
-	case OBJ_TREE:
-		obj = (struct object *)lookup_tree(the_repository, oid);
-		break;
-	case OBJ_BLOB:
-		obj = (struct object *)lookup_blob(the_repository, oid);
-		break;
-	default:
-		die("unknown object type for %s: %s",
-		    oid_to_hex(oid), type_name(type));
-	}
-
-	if (!obj)
-		die("unable to lookup %s", oid_to_hex(oid));
-
-	add_pending_object(data->revs, obj, "");
-}
-
-static int add_recent_loose(const struct object_id *oid,
-			    const char *path, void *data)
-{
-	struct stat st;
-	struct object *obj = lookup_object(the_repository, oid);
-
-	if (obj && obj->flags & SEEN)
-		return 0;
-
-	if (stat(path, &st) < 0) {
-		/*
-		 * It's OK if an object went away during our iteration; this
-		 * could be due to a simultaneous repack. But anything else
-		 * we should abort, since we might then fail to mark objects
-		 * which should not be pruned.
-		 */
-		if (errno == ENOENT)
-			return 0;
-		return error_errno("unable to stat %s", oid_to_hex(oid));
-	}
-
-	add_recent_object(oid, st.st_mtime, data);
-	return 0;
-}
-
-static int add_recent_packed(const struct object_id *oid,
-			     struct packed_git *p, uint32_t pos,
-			     void *data)
-{
-	struct object *obj = lookup_object(the_repository, oid);
-
-	if (obj && obj->flags & SEEN)
-		return 0;
-	add_recent_object(oid, p->mtime, data);
-	return 0;
-}
-
-int add_unseen_recent_objects_to_traversal(struct rev_info *revs,
-					   timestamp_t timestamp)
-{
-	struct recent_data data;
-	int r;
-
-	data.revs = revs;
-	data.timestamp = timestamp;
-
-	r = for_each_loose_object(add_recent_loose, &data,
-				  FOR_EACH_OBJECT_LOCAL_ONLY);
-	if (r)
-		return r;
-	return for_each_packed_object(add_recent_packed, &data,
-				      FOR_EACH_OBJECT_LOCAL_ONLY);
-}
-
-static void *lookup_object_by_type(struct repository *r,
-				   const struct object_id *oid,
-				   enum object_type type)
-{
-	switch (type) {
-	case OBJ_COMMIT:
-		return lookup_commit(r, oid);
-	case OBJ_TREE:
-		return lookup_tree(r, oid);
-	case OBJ_TAG:
-		return lookup_tag(r, oid);
-	case OBJ_BLOB:
-		return lookup_blob(r, oid);
-	default:
-		die("BUG: unknown object type %d", type);
-	}
-}
-
-static int mark_object_seen(const struct object_id *oid,
-			     enum object_type type,
-			     int exclude,
-			     uint32_t name_hash,
-			     struct packed_git *found_pack,
-			     off_t found_offset)
-{
-	struct object *obj = lookup_object_by_type(the_repository, oid, type);
-	if (!obj)
-		die("unable to create object '%s'", oid_to_hex(oid));
-
-	obj->flags |= SEEN;
-	return 0;
-}
-
-void mark_reachable_objects(struct rev_info *revs, int mark_reflog,
-			    timestamp_t mark_recent, struct progress *progress)
-{
-	struct connectivity_progress cp;
-	struct bitmap_index *bitmap_git;
-
-	/*
-	 * Set up revision parsing, and mark us as being interested
-	 * in all object types, not just commits.
-	 */
-	revs->tag_objects = 1;
-	revs->blob_objects = 1;
-	revs->tree_objects = 1;
-
-	/* Add all refs from the index file */
-	add_index_objects_to_pending(revs, 0);
-
-	/* Add all external refs */
-	for_each_ref(add_one_ref, revs);
-
-	/* detached HEAD is not included in the list above */
-	head_ref(add_one_ref, revs);
-	other_head_refs(add_one_ref, revs);
-
-	/* Add all reflog info */
-	if (mark_reflog)
-		add_reflogs_to_pending(revs, 0);
-
-	cp.progress = progress;
-	cp.count = 0;
-
-	bitmap_git = prepare_bitmap_walk(revs, NULL);
-	if (bitmap_git) {
-		traverse_bitmap_commit_list(bitmap_git, revs, mark_object_seen);
-		free_bitmap_index(bitmap_git);
-		return;
-	}
-
-	/*
-	 * 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");
-	traverse_commit_list(revs, mark_commit, mark_object, &cp);
-
-	if (mark_recent) {
-		revs->ignore_missing_links = 1;
-		if (add_unseen_recent_objects_to_traversal(revs, mark_recent))
-			die("unable to mark recent objects");
-		if (prepare_revision_walk(revs))
-			die("revision walk setup failed");
-		traverse_commit_list(revs, mark_commit, mark_object, &cp);
-	}
-
-	display_progress(cp.progress, cp.count);
-}