From 7709f468fdeece2a99d60a581a4ced65cd2844df Mon Sep 17 00:00:00 2001
From: Jonathan Tan <jonathantanmy@google.com>
Date: Fri, 18 Aug 2017 15:20:38 -0700
Subject: [PATCH] pack: move for_each_packed_object()

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 builtin/cat-file.c |  1 +
 cache.h            |  7 +------
 packfile.c         | 40 ++++++++++++++++++++++++++++++++++++++++
 packfile.h         | 11 +++++++++++
 reachable.c        |  1 +
 sha1_file.c        | 40 ----------------------------------------
 6 files changed, 54 insertions(+), 46 deletions(-)

diff --git a/builtin/cat-file.c b/builtin/cat-file.c
index 62c8cf0ebf..4ccbfaac31 100644
--- a/builtin/cat-file.c
+++ b/builtin/cat-file.c
@@ -12,6 +12,7 @@
 #include "streaming.h"
 #include "tree-walk.h"
 #include "sha1-array.h"
+#include "packfile.h"
 
 struct batch_options {
 	int enabled;
diff --git a/cache.h b/cache.h
index c057d3fed3..2f09f8814a 100644
--- a/cache.h
+++ b/cache.h
@@ -1662,17 +1662,12 @@ int for_each_loose_file_in_objdir_buf(struct strbuf *path,
 				      void *data);
 
 /*
- * Iterate over loose and packed objects in both the local
+ * Iterate over loose objects in both the local
  * repository and any alternates repositories (unless the
  * LOCAL_ONLY flag is set).
  */
 #define FOR_EACH_OBJECT_LOCAL_ONLY 0x1
-typedef int each_packed_object_fn(const struct object_id *oid,
-				  struct packed_git *pack,
-				  uint32_t pos,
-				  void *data);
 extern int for_each_loose_object(each_loose_object_fn, void *, unsigned flags);
-extern int for_each_packed_object(each_packed_object_fn, void *, unsigned flags);
 
 struct object_info {
 	/* Request */
diff --git a/packfile.c b/packfile.c
index 84d16bf7e0..f86fa051c9 100644
--- a/packfile.c
+++ b/packfile.c
@@ -1854,3 +1854,43 @@ int has_pack_index(const unsigned char *sha1)
 		return 0;
 	return 1;
 }
+
+static int for_each_object_in_pack(struct packed_git *p, each_packed_object_fn cb, void *data)
+{
+	uint32_t i;
+	int r = 0;
+
+	for (i = 0; i < p->num_objects; i++) {
+		struct object_id oid;
+
+		if (!nth_packed_object_oid(&oid, p, i))
+			return error("unable to get sha1 of object %u in %s",
+				     i, p->pack_name);
+
+		r = cb(&oid, p, i, data);
+		if (r)
+			break;
+	}
+	return r;
+}
+
+int for_each_packed_object(each_packed_object_fn cb, void *data, unsigned flags)
+{
+	struct packed_git *p;
+	int r = 0;
+	int pack_errors = 0;
+
+	prepare_packed_git();
+	for (p = packed_git; p; p = p->next) {
+		if ((flags & FOR_EACH_OBJECT_LOCAL_ONLY) && !p->pack_local)
+			continue;
+		if (open_pack_index(p)) {
+			pack_errors = 1;
+			continue;
+		}
+		r = for_each_object_in_pack(p, cb, data);
+		if (r)
+			break;
+	}
+	return r ? r : pack_errors;
+}
diff --git a/packfile.h b/packfile.h
index d7df41a823..0cdeb54dcd 100644
--- a/packfile.h
+++ b/packfile.h
@@ -124,4 +124,15 @@ extern int has_sha1_pack(const unsigned char *sha1);
 
 extern int has_pack_index(const unsigned char *sha1);
 
+/*
+ * Iterate over packed objects in both the local
+ * repository and any alternates repositories (unless the
+ * FOR_EACH_OBJECT_LOCAL_ONLY flag, defined in cache.h, is set).
+ */
+typedef int each_packed_object_fn(const struct object_id *oid,
+				  struct packed_git *pack,
+				  uint32_t pos,
+				  void *data);
+extern int for_each_packed_object(each_packed_object_fn, void *, unsigned flags);
+
 #endif
diff --git a/reachable.c b/reachable.c
index c62efbfd43..d1ac5d97ef 100644
--- a/reachable.c
+++ b/reachable.c
@@ -9,6 +9,7 @@
 #include "cache-tree.h"
 #include "progress.h"
 #include "list-objects.h"
+#include "packfile.h"
 
 struct connectivity_progress {
 	struct progress *progress;
diff --git a/sha1_file.c b/sha1_file.c
index 7c81790759..bb0831b4c8 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -2015,46 +2015,6 @@ int for_each_loose_object(each_loose_object_fn cb, void *data, unsigned flags)
 	return foreach_alt_odb(loose_from_alt_odb, &alt);
 }
 
-static int for_each_object_in_pack(struct packed_git *p, each_packed_object_fn cb, void *data)
-{
-	uint32_t i;
-	int r = 0;
-
-	for (i = 0; i < p->num_objects; i++) {
-		struct object_id oid;
-
-		if (!nth_packed_object_oid(&oid, p, i))
-			return error("unable to get sha1 of object %u in %s",
-				     i, p->pack_name);
-
-		r = cb(&oid, p, i, data);
-		if (r)
-			break;
-	}
-	return r;
-}
-
-int for_each_packed_object(each_packed_object_fn cb, void *data, unsigned flags)
-{
-	struct packed_git *p;
-	int r = 0;
-	int pack_errors = 0;
-
-	prepare_packed_git();
-	for (p = packed_git; p; p = p->next) {
-		if ((flags & FOR_EACH_OBJECT_LOCAL_ONLY) && !p->pack_local)
-			continue;
-		if (open_pack_index(p)) {
-			pack_errors = 1;
-			continue;
-		}
-		r = for_each_object_in_pack(p, cb, data);
-		if (r)
-			break;
-	}
-	return r ? r : pack_errors;
-}
-
 static int check_stream_sha1(git_zstream *stream,
 			     const char *hdr,
 			     unsigned long size,