added twexport command

tinywiki/management/commands/twexport.py

@@ -0,0 +1,28 @@
+from django.core.management.base import BaseCommand, CommandError  # noqa
+from ...utils import export_wiki_content
+
+
+class Command(BaseCommand):
+    help = "Export wiki content for an app"
+
+    def add_arguments(self, parser):
+        parser.add_argument('app', nargs=1, type=str)
+        parser.add_argument('--file', type=str)
+        parser.add_argument('--prefix', type=str)
+        parser.add_argument('--page-version', type=int)
+        parser.add_argument('--image-version', type=int)
+
+    def handle(self, *args, **options):
+        app = options['app'][0]
+        page_version = options['page_version']
+        if page_version is None:
+            page_version = 0
+        image_version = options['image_version']
+        if image_version is None:
+            image_version = 0
+        prefix = options['prefix']
+        filename = options['file']
+        if filename is None:
+            filename = f"{app}.tinyiki.zip"
+
+        export_wiki_content(app, filename, prefix, page_version, image_version)