Add description for snapshots

gns3server/controller/snapshot.py

@@ -35,16 +35,18 @@ import logging
 log = logging.getLogger(__name__)
 
 
-# The string use to extract the date from the filename
-FILENAME_TIME_FORMAT = "%d%m%y_%H%M%S"
+# Used to extract the date and time from the filename
+FILENAME_DATETIME_FORMAT = "%d%m%y_%H%M%S"
 
+# Used to create a description of the snapshot with a human-readable date and time
+DESCRIPTION_DATETIME_FORMAT = "%Y-%m-%d at %H:%M:%S"
 
 class Snapshot:
     """
     A snapshot object
     """
 
-    def __init__(self, project, snapshot_id=None, name=None, filename=None, created_at=None):
+    def __init__(self, project, snapshot_id=None, name=None, filename=None, created_at=None, description=None):
 
         assert filename or name, "You need to pass a name or a filename"
 
@@ -66,8 +68,13 @@ class Snapshot:
         else:
             self._name = filename.rsplit("_", 2)[0]
             datestring = filename.replace(self._name + "_", "").split(".")[0]
-            self._created_at = int(datetime.strptime(datestring, FILENAME_TIME_FORMAT).replace(tzinfo=timezone.utc).timestamp())
+            self._created_at = int(datetime.strptime(datestring, FILENAME_DATETIME_FORMAT).replace(tzinfo=timezone.utc).timestamp())
 
+        if not description:
+            date = datetime.fromtimestamp(self._created_at, tz=timezone.utc).replace(tzinfo=None).strftime(DESCRIPTION_DATETIME_FORMAT)
+            description = "Snapshot '{}' taken on {}".format(self._name, date)
+
+        self._description = description
         self._filename = filename
         self._path = os.path.join(project.path, "snapshots", filename)
 
@@ -79,13 +86,17 @@ class Snapshot:
     def name(self):
         return self._name
 
+    @property
+    def description(self):
+        return self._description
+
     @property
     def path(self):
         return self._path
 
     @property
     def created_at(self):
-        return int(self._created_at)
+        return self._created_at
 
     async def create(self):
         """
@@ -150,6 +161,7 @@ class Snapshot:
         return {
             "snapshot_id": self._id,
             "name": self._name,
+            "description": self._description,
             "created_at": self._created_at,
             "filename": self._filename,
             "project_id": self._project.id

gns3server/schemas/snapshot.py

@@ -25,6 +25,10 @@ SNAPSHOT_CREATE_SCHEMA = {
             "description": "Snapshot name",
             "minLength": 1
         },
+        "description": {
+            "description": "Snapshot description",
+            "minLength": 1
+        },
     },
     "additionalProperties": False,
     "required": ["name"]
@@ -59,11 +63,16 @@ SNAPSHOT_OBJECT_SCHEMA = {
             "type": "string",
             "minLength": 1
         },
+        "description": {
+            "description": "Snapshot description",
+            "type": "string",
+            "minLength": 1
+        },
         "created_at": {
             "description": "Date of the snapshot (UTC timestamp)",
             "type": "integer"
         }
     },
     "additionalProperties": False,
-    "required": ["snapshot_id", "name", "filename", "created_at", "project_id"]
+    "required": ["snapshot_id", "name", "filename", "created_at", "description", "project_id"]
 }

tests/controller/test_snapshot.py

@@ -65,6 +65,7 @@ def test_json(project):
         "snapshot_id": snapshot._id,
         "name": "snapshot_test",
         "project_id": project.id,
+        "description": "Snapshot 'snapshot_test' taken on 2016-07-26 at 10:04:39",
         "filename": "snapshot_test_260716_100439.gns3project",
         "created_at": 1469527479
     }
@@ -76,6 +77,7 @@ def test_json(project):
         "name": "snapshot_test2",
         "project_id": project.id,
         "filename": "snapshot_test2.gns3snapshot",
+        "description": mock.ANY,
         "created_at": mock.ANY
     }