vendor/libgit2/src/odb_pack.c in rugged-0.25.0b5 vs vendor/libgit2/src/odb_pack.c in rugged-0.25.0b6

@@ -11,17 +11,20 @@
 #include "git2/indexer.h"
 #include "git2/sys/odb_backend.h"
 #include "fileops.h"
 #include "hash.h"
 #include "odb.h"
-#include "delta-apply.h"
+#include "delta.h"
 #include "sha1_lookup.h"
 #include "mwindow.h"
 #include "pack.h"
 
 #include "git2/odb_backend.h"
 
+/* re-freshen pack files no more than every 2 seconds */
+#define FRESHEN_FREQUENCY 2
+
 struct pack_backend {
 	git_odb_backend parent;
 	git_vector packs;
 	struct git_pack_file *last_found;
 	char *pack_folder;
@@ -361,10 +364,32 @@
 		return error;
 
 	return git_packfile_resolve_header(len_p, type_p, e.p, e.offset);
 }
 
+static int pack_backend__freshen(
+	git_odb_backend *backend, const git_oid *oid)
+{
+	struct git_pack_entry e;
+	time_t now;
+	int error;
+
+	if ((error = pack_entry_find(&e, (struct pack_backend *)backend, oid)) < 0)
+		return error;
+
+	now = time(NULL);
+
+	if (e.p->last_freshen > now - FRESHEN_FREQUENCY)
+		return 0;
+
+	if ((error = git_futils_touch(e.p->pack_name, &now)) < 0)
+		return error;
+
+	e.p->last_freshen = now;
+	return 0;
+}
+
 static int pack_backend__read(
 	void **buffer_p, size_t *len_p, git_otype *type_p,
 	git_odb_backend *backend, const git_oid *oid)
 {
 	struct git_pack_entry e;
@@ -558,10 +583,11 @@
 	backend->parent.exists = &pack_backend__exists;
 	backend->parent.exists_prefix = &pack_backend__exists_prefix;
 	backend->parent.refresh = &pack_backend__refresh;
 	backend->parent.foreach = &pack_backend__foreach;
 	backend->parent.writepack = &pack_backend__writepack;
+	backend->parent.freshen = &pack_backend__freshen;
 	backend->parent.free = &pack_backend__free;
 
 	*out = backend;
 	return 0;
 }
@@ -588,12 +614,9 @@
 int git_odb_backend_pack(git_odb_backend **backend_out, const char *objects_dir)
 {
 	int error = 0;
 	struct pack_backend *backend = NULL;
 	git_buf path = GIT_BUF_INIT;
-
-	if (git_mwindow_files_init() < 0)
-		return -1;
 
 	if (pack_backend__alloc(&backend, 8) < 0)
 		return -1;
 
 	if (!(error = git_buf_joinpath(&path, objects_dir, "pack")) &&