build: add tool to update version

Change-Id: I886ad7faf5de3c6781cbdfef0bffe83f3c9d1630

update_version.py

+#!python3
+import re
+import datetime
+
+PATTERN_CODE = re.compile(r'^(\s*versionCode\s*=\s*)(\d+)$', re.MULTILINE)
+PATTERN_NAME = re.compile(r'^(\s*versionName\s*=\s*)"(\w+)(?:-(\d+))?"\s*$', re.MULTILINE)
+
+
+def get_new_code(old_code):
+    return int(old_code) + 1
+
+
+def get_new_name(name_base, name_serial_str):
+    new_name_base = datetime.date.today().strftime("%Y%m%d")
+    name_serial = int(name_serial_str) if name_serial_str else 0
+    new_name_serial = name_serial + 1 if name_base == new_name_base else 1
+    return f"{new_name_base}-{new_name_serial:02}"
+
+
+def update_version(path, new_code=None, new_name=None):
+    with open(path, 'r') as f:
+        content = f.read()
+
+    if not new_code:
+        new_code = get_new_code(PATTERN_CODE.search(content).group(2))
+
+    if not new_name:
+        name_match = PATTERN_NAME.search(content)
+        new_name = get_new_name(name_match.group(2), name_match.group(3))
+
+    content = PATTERN_CODE.sub(rf'\g<1>{new_code}', content)
+    content = PATTERN_NAME.sub(rf'\g<1>"{new_name}"', content)
+
+    with open(path, 'w') as f:
+        f.write(content)
+
+    return (new_code, new_name)
+
+
+def commit(path, new_code, new_name):
+    import subprocess
+    subprocess.Popen(['git', 'add', path],
+                     stdout=subprocess.PIPE).communicate()
+    subprocess.Popen(['git', 'commit', '-m', f'update version to {new_name} ({new_code})'],
+                     stdout=subprocess.PIPE).communicate()
+
+
+if __name__ == '__main__':
+    import argparse, json, sys
+    parser = argparse.ArgumentParser()
+    parser.add_argument('--version-name')
+    parser.add_argument('--version-code', type=int)
+    parser.add_argument('--path', default='ring-android/app/build.gradle.kts')
+    parser.add_argument('--commit', action='store_true')
+    args = parser.parse_args()
+
+    new_code, new_name = update_version(args.path, args.version_code, args.version_name)
+    json.dump({'name': new_name, 'code': new_code}, sys.stdout)
+    print()
+
+    if args.commit:
+        commit(args.path, new_code, new_name)