Add the capability to export the package data as test fixture

lib/exporter.py

@@ -0,0 +1,21 @@
+import sys
+
+import yaml
+
+from lib.db import DB
+from lib.db_revision import DBRevision
+
+
+class Exporter:
+    def __init__(self, package):
+        self.package = package
+
+    def run(self):
+        db = DB()
+        cur = db.cursor()
+        cur.execute("SELECT * from revisions where package=%s", (self.package,))
+        data = {"revisions": []}
+        for row in cur.fetchall():
+            data["revisions"].append(DBRevision(row).as_dict(db))
+
+        yaml.dump(data, sys.stdout, default_flow_style=False)