add parameters for lua and themepark path

Author: lonvia

scripts/osm2pgsql-test-style

@@ -500,6 +500,10 @@ def execute_osm2pgsql(context, output):
         data_stdin = None
 
     env = {}
+    if context.user_args.lua_path:
+        env['LUA_PATH'] = context.user_args.lua_path
+    if context.user_args.themepark_path:
+        env['THEMEPARK_PATH'] = context.user_args.themepark_path
 
     proc = Popen(cmdline, cwd=str(context.workdir),
                  stdin=PIPE, stdout=PIPE, stderr=PIPE, env=env)
@@ -785,6 +789,10 @@ def get_parser():
                         help='(optional) directory to search for test data')
     parser.add_argument('--style-data-dir', type=Path,
                         help='(optional) directory to search for style files')
+    parser.add_argument('--lua-path',
+                        help='Additional paths to take into account for finding lua modules')
+    parser.add_argument('--themepark-path',
+                        help='Additional paths to take into account for finding themepark themes')
     parser.add_argument('--test-db', default='osm2pgsql-test',
                         help='Name of database to use for testing (default: osm2pgsql-test)')
     parser.add_argument('--template-test-db', default='osm2pgsql-test-template',