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, 176 deletions

diff --git a/third_party/git/negotiator/default.c b/third_party/git/negotiator/default.c
deleted file mode 100644
index 4b78f6bf36a0..000000000000
--- a/third_party/git/negotiator/default.c
+++ /dev/null
@@ -1,176 +0,0 @@
-#include "cache.h"
-#include "default.h"
-#include "../commit.h"
-#include "../fetch-negotiator.h"
-#include "../prio-queue.h"
-#include "../refs.h"
-#include "../tag.h"
-
-/* Remember to update object flag allocation in object.h */
-#define COMMON		(1U << 2)
-#define COMMON_REF	(1U << 3)
-#define SEEN		(1U << 4)
-#define POPPED		(1U << 5)
-
-static int marked;
-
-struct negotiation_state {
-	struct prio_queue rev_list;
-	int non_common_revs;
-};
-
-static void rev_list_push(struct negotiation_state *ns,
-			  struct commit *commit, int mark)
-{
-	if (!(commit->object.flags & mark)) {
-		commit->object.flags |= mark;
-
-		if (parse_commit(commit))
-			return;
-
-		prio_queue_put(&ns->rev_list, commit);
-
-		if (!(commit->object.flags & COMMON))
-			ns->non_common_revs++;
-	}
-}
-
-static int clear_marks(const char *refname, const struct object_id *oid,
-		       int flag, void *cb_data)
-{
-	struct object *o = deref_tag(the_repository, parse_object(the_repository, oid), refname, 0);
-
-	if (o && o->type == OBJ_COMMIT)
-		clear_commit_marks((struct commit *)o,
-				   COMMON | COMMON_REF | SEEN | POPPED);
-	return 0;
-}
-
-/*
- * This function marks a rev and its ancestors as common.
- * In some cases, it is desirable to mark only the ancestors (for example
- * when only the server does not yet know that they are common).
- */
-static void mark_common(struct negotiation_state *ns, struct commit *commit,
-		int ancestors_only, int dont_parse)
-{
-	if (commit != NULL && !(commit->object.flags & COMMON)) {
-		struct object *o = (struct object *)commit;
-
-		if (!ancestors_only)
-			o->flags |= COMMON;
-
-		if (!(o->flags & SEEN))
-			rev_list_push(ns, commit, SEEN);
-		else {
-			struct commit_list *parents;
-
-			if (!ancestors_only && !(o->flags & POPPED))
-				ns->non_common_revs--;
-			if (!o->parsed && !dont_parse)
-				if (parse_commit(commit))
-					return;
-
-			for (parents = commit->parents;
-					parents;
-					parents = parents->next)
-				mark_common(ns, parents->item, 0,
-					    dont_parse);
-		}
-	}
-}
-
-/*
- * Get the next rev to send, ignoring the common.
- */
-static const struct object_id *get_rev(struct negotiation_state *ns)
-{
-	struct commit *commit = NULL;
-
-	while (commit == NULL) {
-		unsigned int mark;
-		struct commit_list *parents;
-
-		if (ns->rev_list.nr == 0 || ns->non_common_revs == 0)
-			return NULL;
-
-		commit = prio_queue_get(&ns->rev_list);
-		parse_commit(commit);
-		parents = commit->parents;
-
-		commit->object.flags |= POPPED;
-		if (!(commit->object.flags & COMMON))
-			ns->non_common_revs--;
-
-		if (commit->object.flags & COMMON) {
-			/* do not send "have", and ignore ancestors */
-			commit = NULL;
-			mark = COMMON | SEEN;
-		} else if (commit->object.flags & COMMON_REF)
-			/* send "have", and ignore ancestors */
-			mark = COMMON | SEEN;
-		else
-			/* send "have", also for its ancestors */
-			mark = SEEN;
-
-		while (parents) {
-			if (!(parents->item->object.flags & SEEN))
-				rev_list_push(ns, parents->item, mark);
-			if (mark & COMMON)
-				mark_common(ns, parents->item, 1, 0);
-			parents = parents->next;
-		}
-	}
-
-	return &commit->object.oid;
-}
-
-static void known_common(struct fetch_negotiator *n, struct commit *c)
-{
-	if (!(c->object.flags & SEEN)) {
-		rev_list_push(n->data, c, COMMON_REF | SEEN);
-		mark_common(n->data, c, 1, 1);
-	}
-}
-
-static void add_tip(struct fetch_negotiator *n, struct commit *c)
-{
-	n->known_common = NULL;
-	rev_list_push(n->data, c, SEEN);
-}
-
-static const struct object_id *next(struct fetch_negotiator *n)
-{
-	n->known_common = NULL;
-	n->add_tip = NULL;
-	return get_rev(n->data);
-}
-
-static int ack(struct fetch_negotiator *n, struct commit *c)
-{
-	int known_to_be_common = !!(c->object.flags & COMMON);
-	mark_common(n->data, c, 0, 1);
-	return known_to_be_common;
-}
-
-static void release(struct fetch_negotiator *n)
-{
-	clear_prio_queue(&((struct negotiation_state *)n->data)->rev_list);
-	FREE_AND_NULL(n->data);
-}
-
-void default_negotiator_init(struct fetch_negotiator *negotiator)
-{
-	struct negotiation_state *ns;
-	negotiator->known_common = known_common;
-	negotiator->add_tip = add_tip;
-	negotiator->next = next;
-	negotiator->ack = ack;
-	negotiator->release = release;
-	negotiator->data = ns = xcalloc(1, sizeof(*ns));
-	ns->rev_list.compare = compare_commits_by_commit_date;
-
-	if (marked)
-		for_each_ref(clear_marks, NULL);
-	marked = 1;
-}