create dest_dir if needed

fixes #48
2015-04-01 17:41:40 +02:00 · 2015-04-01 17:41:40 +02:00 · ebde2fcba2
parent bb2aa112c3
commit ebde2fcba2
1 changed files with 3 additions and 1 deletions
--- a/backend.py
+++ b/backend.py
@ -19,6 +19,8 @@ from lib.rrddb import RRD


 def main(params):
+    os.makedirs(params['dest_dir'], exist_ok=True)
+
    nodes_fn = os.path.join(params['dest_dir'], 'nodes.json')
    graph_fn = os.path.join(params['dest_dir'], 'graph.json')

@ -52,7 +54,7 @@ def main(params):
    try:
        with open(nodes_fn, 'r') as nodedb_handle:
            nodedb = json.load(nodedb_handle)
-    except FileNotFoundError:
+    except IOError:
        nodedb = {'nodes': dict()}

    # flush nodedb if it uses the old format