Rework mtime management

1 files changed, 14 insertions, 12 deletions

diff --git a/src/main.c b/src/main.c
index 20c3a0d..1a56ed2 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1083,15 +1083,8 @@ static void ftag_query(int argc, char **argv)
 	free(tags);
 }
 
-/* Return:
- * - positive value if local ftag database is newer than the remote one;
- * - zero           if both ftag databases have the same last modification time;
- * - negative value if remote ftag database is newer than the local one. */
-static int ftag_sync_compare_mtimes(void)
+static time_t get_remote_mtime(void)
 {
-	/* TODO: create get_mtime routines
-
-	   This will be useful in pull/push routines implementation. */
 	char *remote_path = FTAG_REMOTE_ROOT "/ftag.sqlite3";
 	char cmd[1024];
 	strbuild(cmd, "ssh %s 'test -f %s && stat --format=%%Y %s || echo 0'",
@@ -1117,20 +1110,29 @@ static int ftag_sync_compare_mtimes(void)
 	}
 	time_t remote_mtime = atol(line);
 	free(line);
+	return remote_mtime;
+}
+
+static time_t get_local_mtime(void)
+{
 	struct stat st;
 	rc = stat(DATABASE_PATH, &st);
-	time_t local_mtime = st.st_mtim.tv_sec;
-	return local_mtime - remote_mtime;
+	if (rc == -1) {
+		fprintf(stderr, "stat: %s: ", DATABASE_PATH);
+		perror("");
+		exit(EXIT_FAILURE);
+	}
+	return st.st_mtim.tv_sec;
 }
 
 static int ftag_sync_is_local_newer(void)
 {
-	return ftag_sync_compare_mtimes() > 0;
+	return get_local_mtime() > get_remote_mtime();
 }
 
 static int ftag_sync_is_remote_newer(void)
 {
-	return ftag_sync_compare_mtimes() < 0;
+	return get_local_mtime() < get_remote_mtime();
 }
 
 static void ftag_sync_pull(void)