add option to flask scodoc-database

scodoc.py

@@ -275,10 +275,20 @@ def list_depts(depts=""):  # list-dept
 
 
 @app.cli.command()
-def scodoc_database_uri():  # list-dept
-    """print the database_uril
-    """
-    print(app.config["SQLALCHEMY_DATABASE_URI"])
+@click.option(
+    "-n",
+    "--name",
+    is_flag=True,
+    help="show database name instead of connexion string (required for "
+    "dropdb/createddb commands)",
+)
+def scodoc_database(name):  # list-dept
+    """print the database connexion string"""
+    uri = app.config["SQLALCHEMY_DATABASE_URI"]
+    if name:
+        print(uri.split("/")[-1])
+    else:
+        print(uri)
 
 
 @app.cli.command()