[PATCH v1 1/8] fetch-object: make functions return an error code

[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>
---
 fetch-object.c | 15 +++++++++------
 fetch-object.h |  6 +++---
 sha1-file.c    |  4 ++--
 3 files changed, 14 insertions(+), 11 deletions(-)

diff --git a/fetch-object.c b/fetch-object.c
index 853624f811..ccc4ea7f1a 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);
@@ -19,18 +20,20 @@ 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_object(const char *remote_name, const unsigned char *sha1)
+int fetch_object(const char *remote_name, const unsigned char *sha1)
 {
 	struct ref *ref = alloc_ref(sha1_to_hex(sha1));
 	hashcpy(ref->old_oid.hash, sha1);
-	fetch_refs(remote_name, ref);
+	return fetch_refs(remote_name, ref);
 }
 
-void fetch_objects(const char *remote_name, const struct oid_array *to_fetch)
+int fetch_objects(const char *remote_name, const struct oid_array *to_fetch)
 {
 	struct ref *ref = NULL;
 	int i;
@@ -41,5 +44,5 @@ void fetch_objects(const char *remote_name, const struct oid_array *to_fetch)
 		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 4b269d07ed..12e1f9ee70 100644
--- a/fetch-object.h
+++ b/fetch-object.h
@@ -3,9 +3,9 @@
 
 #include "sha1-array.h"
 
-extern void fetch_object(const char *remote_name, const unsigned char *sha1);
+extern int fetch_object(const char *remote_name, const unsigned char *sha1);
 
-extern void fetch_objects(const char *remote_name,
-			  const struct oid_array *to_fetch);
+extern int fetch_objects(const char *remote_name,
+			 const struct oid_array *to_fetch);
 
 #endif
diff --git a/sha1-file.c b/sha1-file.c
index 46072602ff..7d3c1ebd91 100644
--- a/sha1-file.c
+++ b/sha1-file.c
@@ -1290,8 +1290,8 @@ int oid_object_info_extended(const struct object_id *oid, struct object_info *oi
 		if (fetch_if_missing && repository_format_partial_clone &&
 		    !already_retried) {
 			/*
-			 * TODO Investigate haveing fetch_object() return
-			 * TODO error/success and stopping the music here.
+			 * TODO Investigate checking fetch_object() return
+			 * TODO value and stopping on error here.
 			 */
 			fetch_object(repository_format_partial_clone, real->hash);
 			already_retried = 1;
-- 
2.17.0.590.gbd05bfcafd