Move scripts directory inside synapse, exposing as setuptools entry_points (#12118)

* Two scripts are basically entry_points already
* Move and rename scripts/* to synapse/_scripts/*.py
* Delete sync_room_to_group.pl
* Expose entry points in setup.py
* Update linter script and config
* Fixup scripts & docs mentioning scripts that moved

Co-authored-by: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>

synapse/_scripts/generate_log_config.py

@@ -0,0 +1,49 @@
+#!/usr/bin/env python3
+
+# Copyright 2020 The Matrix.org Foundation C.I.C.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import argparse
+import sys
+
+from synapse.config.logger import DEFAULT_LOG_CONFIG
+
+
+def main():
+    parser = argparse.ArgumentParser()
+
+    parser.add_argument(
+        "-o",
+        "--output-file",
+        type=argparse.FileType("w"),
+        default=sys.stdout,
+        help="File to write the configuration to. Default: stdout",
+    )
+
+    parser.add_argument(
+        "-f",
+        "--log-file",
+        type=str,
+        default="/var/log/matrix-synapse/homeserver.log",
+        help="name of the log file",
+    )
+
+    args = parser.parse_args()
+    out = args.output_file
+    out.write(DEFAULT_LOG_CONFIG.substitute(log_file=args.log_file))
+    out.flush()
+
+
+if __name__ == "__main__":
+    main()