1 files changed, 0 insertions, 250 deletions
diff --git a/third_party/git/negotiator/skipping.c b/third_party/git/negotiator/skipping.c
deleted file mode 100644
index dffbc76c49ef..000000000000
--- a/third_party/git/negotiator/skipping.c
+++ /dev/null
@@ -1,250 +0,0 @@
-#include "cache.h"
-#include "skipping.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 */
-/*
- * Both us and the server know that both parties have this object.
- */
-#define COMMON		(1U << 2)
-/*
- * The server has told us that it has this object. We still need to tell the
- * server that we have this object (or one of its descendants), but since we are
- * going to do that, we do not need to tell the server about its ancestors.
- */
-#define ADVERTISED	(1U << 3)
-/*
- * This commit has entered the priority queue.
- */
-#define SEEN		(1U << 4)
-/*
- * This commit has left the priority queue.
- */
-#define POPPED		(1U << 5)
-
-static int marked;
-
-/*
- * An entry in the priority queue.
- */
-struct entry {
-	struct commit *commit;
-
-	/*
-	 * Used only if commit is not COMMON.
-	 */
-	uint16_t original_ttl;
-	uint16_t ttl;
-};
-
-struct data {
-	struct prio_queue rev_list;
-
-	/*
-	 * The number of non-COMMON commits in rev_list.
-	 */
-	int non_common_revs;
-};
-
-static int compare(const void *a_, const void *b_, void *unused)
-{
-	const struct entry *a = a_;
-	const struct entry *b = b_;
-	return compare_commits_by_commit_date(a->commit, b->commit, NULL);
-}
-
-static struct entry *rev_list_push(struct data *data, struct commit *commit, int mark)
-{
-	struct entry *entry;
-	commit->object.flags |= mark | SEEN;
-
-	entry = xcalloc(1, sizeof(*entry));
-	entry->commit = commit;
-	prio_queue_put(&data->rev_list, entry);
-
-	if (!(mark & COMMON))
-		data->non_common_revs++;
-	return entry;
-}
-
-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 | ADVERTISED | SEEN | POPPED);
-	return 0;
-}
-
-/*
- * Mark this SEEN commit and all its SEEN ancestors as COMMON.
- */
-static void mark_common(struct data *data, struct commit *c)
-{
-	struct commit_list *p;
-
-	if (c->object.flags & COMMON)
-		return;
-	c->object.flags |= COMMON;
-	if (!(c->object.flags & POPPED))
-		data->non_common_revs--;
-
-	if (!c->object.parsed)
-		return;
-	for (p = c->parents; p; p = p->next) {
-		if (p->item->object.flags & SEEN)
-			mark_common(data, p->item);
-	}
-}
-
-/*
- * Ensure that the priority queue has an entry for to_push, and ensure that the
- * entry has the correct flags and ttl.
- *
- * This function returns 1 if an entry was found or created, and 0 otherwise
- * (because the entry for this commit had already been popped).
- */
-static int push_parent(struct data *data, struct entry *entry,
-		       struct commit *to_push)
-{
-	struct entry *parent_entry;
-
-	if (to_push->object.flags & SEEN) {
-		int i;
-		if (to_push->object.flags & POPPED)
-			/*
-			 * The entry for this commit has already been popped,
-			 * due to clock skew. Pretend that this parent does not
-			 * exist.
-			 */
-			return 0;
-		/*
-		 * Find the existing entry and use it.
-		 */
-		for (i = 0; i < data->rev_list.nr; i++) {
-			parent_entry = data->rev_list.array[i].data;
-			if (parent_entry->commit == to_push)
-				goto parent_found;
-		}
-		BUG("missing parent in priority queue");
-parent_found:
-		;
-	} else {
-		parent_entry = rev_list_push(data, to_push, 0);
-	}
-
-	if (entry->commit->object.flags & (COMMON | ADVERTISED)) {
-		mark_common(data, to_push);
-	} else {
-		uint16_t new_original_ttl = entry->ttl
-			? entry->original_ttl : entry->original_ttl * 3 / 2 + 1;
-		uint16_t new_ttl = entry->ttl
-			? entry->ttl - 1 : new_original_ttl;
-		if (parent_entry->original_ttl < new_original_ttl) {
-			parent_entry->original_ttl = new_original_ttl;
-			parent_entry->ttl = new_ttl;
-		}
-	}
-
-	return 1;
-}
-
-static const struct object_id *get_rev(struct data *data)
-{
-	struct commit *to_send = NULL;
-
-	while (to_send == NULL) {
-		struct entry *entry;
-		struct commit *commit;
-		struct commit_list *p;
-		int parent_pushed = 0;
-
-		if (data->rev_list.nr == 0 || data->non_common_revs == 0)
-			return NULL;
-
-		entry = prio_queue_get(&data->rev_list);
-		commit = entry->commit;
-		commit->object.flags |= POPPED;
-		if (!(commit->object.flags & COMMON))
-			data->non_common_revs--;
-
-		if (!(commit->object.flags & COMMON) && !entry->ttl)
-			to_send = commit;
-
-		parse_commit(commit);
-		for (p = commit->parents; p; p = p->next)
-			parent_pushed |= push_parent(data, entry, p->item);
-
-		if (!(commit->object.flags & COMMON) && !parent_pushed)
-			/*
-			 * This commit has no parents, or all of its parents
-			 * have already been popped (due to clock skew), so send
-			 * it anyway.
-			 */
-			to_send = commit;
-
-		free(entry);
-	}
-
-	return &to_send->object.oid;
-}
-
-static void known_common(struct fetch_negotiator *n, struct commit *c)
-{
-	if (c->object.flags & SEEN)
-		return;
-	rev_list_push(n->data, c, ADVERTISED);
-}
-
-static void add_tip(struct fetch_negotiator *n, struct commit *c)
-{
-	n->known_common = NULL;
-	if (c->object.flags & SEEN)
-		return;
-	rev_list_push(n->data, c, 0);
-}
-
-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);
-	if (!(c->object.flags & SEEN))
-		die("received ack for commit %s not sent as 'have'\n",
-		    oid_to_hex(&c->object.oid));
-	mark_common(n->data, c);
-	return known_to_be_common;
-}
-
-static void release(struct fetch_negotiator *n)
-{
-	clear_prio_queue(&((struct data *)n->data)->rev_list);
-	FREE_AND_NULL(n->data);
-}
-
-void skipping_negotiator_init(struct fetch_negotiator *negotiator)
-{
-	struct data *data;
-	negotiator->known_common = known_common;
-	negotiator->add_tip = add_tip;
-	negotiator->next = next;
-	negotiator->ack = ack;
-	negotiator->release = release;
-	negotiator->data = data = xcalloc(1, sizeof(*data));
-	data->rev_list.compare = compare;
-
-	if (marked)
-		for_each_ref(clear_marks, NULL);
-	marked = 1;
-}