[PATCH 4/6] refs.c: Have a write_in_full_to_lock_file wrapping write_in_full

[Stefan Beller <sbeller@google.com>]

Now we only have one place where we need to touch the internals of
the lock_file struct.

No functional changes intended.

Signed-off-by: Stefan Beller <sbeller@google.com>
---
 refs.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/refs.c b/refs.c
index 8281bed..311599b 100644
--- a/refs.c
+++ b/refs.c
@@ -3064,6 +3064,13 @@ int is_branch(const char *refname)
 	return !strcmp(refname, "HEAD") || starts_with(refname, "refs/heads/");
 }
 
+static ssize_t write_in_full_to_lockfile(struct lock_file *lock,
+					 const void *buf,
+					 size_t count)
+{
+	return write_in_full(lock->fd, buf, count);
+}
+
 /*
  * Write sha1 into the ref specified by the lock. Make sure that errno
  * is sane on error.
@@ -3097,8 +3104,8 @@ static int write_ref_sha1(struct ref_lock *lock,
 		errno = EINVAL;
 		return -1;
 	}
-	if (write_in_full(lock->lk->fd, sha1_to_hex(sha1), 40) != 40 ||
-	    write_in_full(lock->lk->fd, &term, 1) != 1 ||
+	if (write_in_full_to_lockfile(lock->lk, sha1_to_hex(sha1), 40) != 40 ||
+	    write_in_full_to_lockfile(lock->lk, &term, 1) != 1 ||
 	    close_ref(lock) < 0) {
 		int save_errno = errno;
 		error("Couldn't write %s", lock->lk->filename.buf);
@@ -4078,9 +4085,9 @@ int reflog_expire(const char *refname, const unsigned char *sha1,
 			status |= error("couldn't write %s: %s", log_file,
 					strerror(errno));
 		} else if ((flags & EXPIRE_REFLOGS_UPDATE_REF) &&
-			(write_in_full(lock->lk->fd,
+			(write_in_full_to_lockfile(lock->lk,
 				sha1_to_hex(cb.last_kept_sha1), 40) != 40 ||
-			 write_in_full(lock->lk->fd, "\n", 1) != 1 ||
+			 write_in_full_to_lockfile(lock->lk, "\n", 1) != 1 ||
 			 close_ref(lock) < 0)) {
 			status |= error("couldn't write %s",
 					lock->lk->filename.buf);
-- 
2.2.1.62.g3f15098