[PATCH v2 1/3] builtin/repack.c: change xwrite to write_in_full and report errors.

["Randall S. Becker" <the.n.e.key@gmail.com>]

From: "Randall S. Becker" <rsbecker@nexbridge.com>

This change is required because some platforms do not support file writes of
arbitrary sizes (e.g, NonStop). xwrite ends up truncating the output to the
maximum single I/O size possible for the destination device. The result of
write_in_full() is also passed to the caller, which was previously ignored.

Signed-off-by: Randall S. Becker <rsbecker@nexbridge.com>
---
 builtin/repack.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/builtin/repack.c b/builtin/repack.c
index ede36328a3..932d24c60b 100644
--- a/builtin/repack.c
+++ b/builtin/repack.c
@@ -307,6 +307,7 @@ static int write_oid(const struct object_id *oid,
 		     struct packed_git *pack UNUSED,
 		     uint32_t pos UNUSED, void *data)
 {
+	int err;
 	struct child_process *cmd = data;
 
 	if (cmd->in == -1) {
@@ -314,8 +315,12 @@ static int write_oid(const struct object_id *oid,
 			die(_("could not start pack-objects to repack promisor objects"));
 	}
 
-	xwrite(cmd->in, oid_to_hex(oid), the_hash_algo->hexsz);
-	xwrite(cmd->in, "\n", 1);
+	err = write_in_full(cmd->in, oid_to_hex(oid), the_hash_algo->hexsz);
+	if (err <= 0)
+		return err;
+	err = write_in_full(cmd->in, "\n", 1);
+	if (err <= 0)
+		return err;
 	return 0;
 }
 
-- 
2.42.1