Slack importer: Add slack to zulip data conversion script as a manage.py command.

zerver/management/commands/convert_slack_data.py

@@ -0,0 +1,50 @@
+
+import argparse
+import os
+import subprocess
+import tempfile
+import shutil
+from typing import Any
+
+from django.core.management.base import BaseCommand, CommandParser
+
+from zerver.lib.slack_data_to_zulip_data import do_convert_data
+
+class Command(BaseCommand):
+    help = """Convert the Slack data into Zulip data format."""
+
+    def add_arguments(self, parser: CommandParser) -> None:
+        parser.add_argument('slack_data_zip', nargs='+',
+                            metavar='<slack data zip>',
+                            help="Zipped slack data")
+
+        parser.add_argument('realm_name', metavar='<realm_name>',
+                            type=str, help="Realm Name")
+
+        parser.add_argument('--output', dest='output_dir',
+                            action="store", default=None,
+                            help='Directory to write exported data to.')
+        parser.formatter_class = argparse.RawTextHelpFormatter
+
+    def handle(self, *args: Any, **options: Any) -> None:
+        output_dir = options["output_dir"]
+        if output_dir is None:
+            output_dir = tempfile.mkdtemp(prefix="/tmp/converted-slack-data-")
+        else:
+            output_dir = os.path.realpath(output_dir)
+        if os.path.exists(output_dir):
+            shutil.rmtree(output_dir)
+        os.makedirs(output_dir)
+
+        realm_name = options['realm_name']
+        if realm_name is None:
+            print("Enter realm name!")
+            exit(1)
+
+        for path in options['slack_data_zip']:
+            if not os.path.exists(path):
+                print("Slack data directory not found: '%s'" % (path,))
+                exit(1)
+
+            print("Converting Data ...")
+            do_convert_data(path, realm_name, output_dir)