[PATCH v5 1/8] fetch-object: make functions return an error code

[Christian Couder <christian.couder@gmail.com>]

From: Christian Couder <christian.couder@gmail.com>

The callers of the fetch_object() and fetch_objects() might
be interested in knowing if these functions succeeded or not.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 fetch-object.c | 13 ++++++++-----
 fetch-object.h |  4 ++--
 sha1-file.c    |  4 ++--
 3 files changed, 12 insertions(+), 9 deletions(-)

diff --git a/fetch-object.c b/fetch-object.c
index 4266548800..eac4d448ef 100644
--- a/fetch-object.c
+++ b/fetch-object.c
@@ -5,11 +5,12 @@
 #include "transport.h"
 #include "fetch-object.h"
 
-static void fetch_refs(const char *remote_name, struct ref *ref)
+static int fetch_refs(const char *remote_name, struct ref *ref)
 {
 	struct remote *remote;
 	struct transport *transport;
 	int original_fetch_if_missing = fetch_if_missing;
+	int res;
 
 	fetch_if_missing = 0;
 	remote = remote_get(remote_name);
@@ -19,12 +20,14 @@ static void fetch_refs(const char *remote_name, struct ref *ref)
 
 	transport_set_option(transport, TRANS_OPT_FROM_PROMISOR, "1");
 	transport_set_option(transport, TRANS_OPT_NO_DEPENDENTS, "1");
-	transport_fetch_refs(transport, ref);
+	res = transport_fetch_refs(transport, ref);
 	fetch_if_missing = original_fetch_if_missing;
+
+	return res;
 }
 
-void fetch_objects(const char *remote_name, const struct object_id *oids,
-		   int oid_nr)
+int fetch_objects(const char *remote_name, const struct object_id *oids,
+		  int oid_nr)
 {
 	struct ref *ref = NULL;
 	int i;
@@ -36,5 +39,5 @@ void fetch_objects(const char *remote_name, const struct object_id *oids,
 		new_ref->next = ref;
 		ref = new_ref;
 	}
-	fetch_refs(remote_name, ref);
+	return fetch_refs(remote_name, ref);
 }
diff --git a/fetch-object.h b/fetch-object.h
index d2f996d4e8..8cc8c14b9d 100644
--- a/fetch-object.h
+++ b/fetch-object.h
@@ -1,7 +1,7 @@
 #ifndef FETCH_OBJECT_H
 #define FETCH_OBJECT_H
 
-void fetch_objects(const char *remote_name, const struct object_id *oids,
-		   int oid_nr);
+int fetch_objects(const char *remote_name, const struct object_id *oids,
+		  int oid_nr);
 
 #endif
diff --git a/sha1-file.c b/sha1-file.c
index a4367b8f04..5c44873d37 100644
--- a/sha1-file.c
+++ b/sha1-file.c
@@ -1312,8 +1312,8 @@ int oid_object_info_extended(struct repository *r, const struct object_id *oid,
 		if (fetch_if_missing && repository_format_partial_clone &&
 		    !already_retried && r == the_repository) {
 			/*
-			 * TODO Investigate having fetch_object() return
-			 * TODO error/success and stopping the music here.
+			 * TODO Investigate checking fetch_object() return
+			 * TODO value and stopping on error here.
 			 * TODO Pass a repository struct through fetch_object,
 			 * such that arbitrary repositories work.
 			 */
-- 
2.19.0.278.gca5b891cac