add offline import mode

In offline mode no attempts are made to download data from the internet.
At the moment that only concerns the computation of the database date.
It contacts the main API to get the date.

diff --git a/nominatim/clicmd/setup.py b/nominatim/clicmd/setup.py
index b643c5baa4cf3a439740944eb1b9f45d17b5165f..7b5f379739e5f7269975970d05ef182cee403b4b 100644 (file)
--- a/nominatim/clicmd/setup.py
+++ b/nominatim/clicmd/setup.py
@@ -53,6 +53,8 @@ class SetupAll:
         group.add_argument('--no-updates', action='store_true',
                            help="Do not keep tables that are only needed for "
                                 "updating the database later")
+        group.add_argument('--offline', action='store_true',
+                           help="Do not attempt to load any additional data from the internet")
         group = parser.add_argument_group('Expert options')
         group.add_argument('--ignore-errors', action='store_true',
                            help='Continue import even when errors in SQL are present')
@@ -139,7 +141,7 @@ class SetupAll:
         with connect(args.config.get_libpq_dsn()) as conn:
             refresh.setup_website(webdir, args.config, conn)
 
-        SetupAll._set_database_date(args.config.get_libpq_dsn())
+        SetupAll._finalize_database(args.config.get_libpq_dsn(), args.offline)
 
         return 0
 
@@ -202,15 +204,16 @@ class SetupAll:
 
 
     @staticmethod
-    def _set_database_date(dsn):
+    def _finalize_database(dsn, offline):
         """ Determine the database date and set the status accordingly.
         """
         with connect(dsn) as conn:
-            try:
-                dbdate = status.compute_database_date(conn)
-                status.set_status(conn, dbdate)
-                LOG.info('Database is at %s.', dbdate)
-            except Exception as exc: # pylint: disable=broad-except
-                LOG.error('Cannot determine date of database: %s', exc)
+            if not offline:
+                try:
+                    dbdate = status.compute_database_date(conn)
+                    status.set_status(conn, dbdate)
+                    LOG.info('Database is at %s.', dbdate)
+                except Exception as exc: # pylint: disable=broad-except
+                    LOG.error('Cannot determine date of database: %s', exc)
 
             properties.set_property(conn, 'database_version', version_str())