Atomic save of the .gns3

Fix #579
8 years ago · 49eb7d8ce7
parent 627ebdb322
commit 49eb7d8ce7
1 changed files with 2 additions and 1 deletions
--- a/gns3server/controller/project.py
+++ b/gns3server/controller/project.py
@ -363,8 +363,9 @@ class Project:
            topo = project_to_topology(self)
            path = self._topology_file()
            log.debug("Write %s", path)
-            with open(path, "w+") as f:
+            with open(path + ".tmp", "w+") as f:
                json.dump(topo, f, indent=4, sort_keys=True)
+            shutil.move(path + ".tmp", path)
        except OSError as e:
            raise aiohttp.web.HTTPInternalServerError(text="Could not write topology: {}".format(e))