Add script to download SAS emoji from twemoji

tools/sas/import_sas_emojis.py

@@ -0,0 +1,83 @@
+#!/usr/bin/env python3
+
+#  Copyright (c) 2020 New Vector Ltd
+#
+#  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 json
+import os
+import os.path
+# Run `pip3 install requests` if not installed yet
+import requests
+
+### Arguments
+
+parser = argparse.ArgumentParser(description='Download sas string from matrix-doc.')
+parser.add_argument('-v',
+                    '--verbose',
+                    help="increase output verbosity.",
+                    action="store_true")
+
+args = parser.parse_args()
+
+if args.verbose:
+    print("Argument:")
+    print(args)
+
+base_url = "https://raw.githubusercontent.com/matrix-org/matrix-spec/main/data-definitions/sas-emoji.json"
+
+base_emoji_url = "https://raw.githubusercontent.com/twitter/twemoji/master/assets/svg/"
+
+print("Downloading " + base_url + "…")
+
+r0 = requests.get(base_url)
+data0 = json.loads(r0.content.decode())
+
+if args.verbose:
+    print("Json data:")
+    print(data0)
+
+print()
+
+scripts_dir = os.path.dirname(os.path.abspath(__file__))
+data_defs_dir = os.path.join(scripts_dir, "../../tmp/emoji/")
+
+def handle_emoji(dict):
+    print("Handle emoji " + str(dict["number"]) + " (" + dict["description"] + ")…")
+    if args.verbose:
+        print("With")
+        print(dict)
+    # Transform dict["unicode"] from "U+2601U+FE0F" to "2601U"
+    emoji = dict["unicode"].split("U+")[1].lower()
+    url = base_emoji_url + emoji + ".svg"
+    file = os.path.join(data_defs_dir, "ic_verification_" + format(dict["number"], '02d') + ".svg")
+    print("Downloading " + url + " to " + file + "…")
+    r = requests.get(url)
+    if r.status_code != 200:
+        print("Fatal: " + str(r.status_code))
+        # Stop script with error
+        sys.exit(1)
+    os.makedirs(os.path.dirname(file), exist_ok=True)
+    with open(file, "w") as f:
+        f.write(r.content.decode())
+
+for emoji in data0:
+    handle_emoji(emoji)
+
+print()
+print("Success!")
+print()
+print("To convert to vector drawable, download tool from https://www.androiddesignpatterns.com/2018/11/android-studio-svg-to-vector-cli.html")
+print("unzip it, and run:")
+print("vd-tool/bin/vd-tool -c -in ./tmp/emoji -out features/verifysession/impl/src/main/res/drawable")