2 files changed, 52 insertions, 0 deletions
diff --git a/third_party/git/negotiator/noop.c b/third_party/git/negotiator/noop.c
new file mode 100644
index 000000000000..60569b83501a
--- /dev/null
+++ b/third_party/git/negotiator/noop.c
@@ -0,0 +1,44 @@
+#include "cache.h"
+#include "noop.h"
+#include "../commit.h"
+#include "../fetch-negotiator.h"
+
+static void known_common(struct fetch_negotiator *n, struct commit *c)
+{
+	/* do nothing */
+}
+
+static void add_tip(struct fetch_negotiator *n, struct commit *c)
+{
+	/* do nothing */
+}
+
+static const struct object_id *next(struct fetch_negotiator *n)
+{
+	return NULL;
+}
+
+static int ack(struct fetch_negotiator *n, struct commit *c)
+{
+	/*
+	 * This negotiator does not emit any commits, so there is no commit to
+	 * be acknowledged. If there is any ack, there is a bug.
+	 */
+	BUG("ack with noop negotiator, which does not emit any commits");
+	return 0;
+}
+
+static void release(struct fetch_negotiator *n)
+{
+	/* nothing to release */
+}
+
+void noop_negotiator_init(struct fetch_negotiator *negotiator)
+{
+	negotiator->known_common = known_common;
+	negotiator->add_tip = add_tip;
+	negotiator->next = next;
+	negotiator->ack = ack;
+	negotiator->release = release;
+	negotiator->data = NULL;
+}
diff --git a/third_party/git/negotiator/noop.h b/third_party/git/negotiator/noop.h
new file mode 100644
index 000000000000..2b4ec5d07a27
--- /dev/null
+++ b/third_party/git/negotiator/noop.h
@@ -0,0 +1,8 @@
+#ifndef NEGOTIATOR_NOOP_H
+#define NEGOTIATOR_NOOP_H
+
+struct fetch_negotiator;
+
+void noop_negotiator_init(struct fetch_negotiator *negotiator);
+
+#endif