release: import some helper scripts for managing official releases

Change-Id: I9abebfef5ad19f6a637bc3b12effea9dd6d0269d
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/256234
Tested-by: Mike Frysinger <vapier@google.com>
Reviewed-by: David Pursehouse <dpursehouse@collab.net>

release/util.py

@@ -0,0 +1,73 @@
+# Copyright (C) 2020 The Android Open Source Project
+#
+# 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.
+
+"""Random utility code for release tools."""
+
+import os
+import re
+import subprocess
+import sys
+
+
+assert sys.version_info >= (3, 6), 'This module requires Python 3.6+'
+
+
+TOPDIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+HOMEDIR = os.path.expanduser('~')
+
+
+# These are the release keys we sign with.
+KEYID_DSA = '8BB9AD793E8E6153AF0F9A4416530D5E920F5C65'
+KEYID_RSA = 'A34A13BE8E76BFF46A0C022DA2E75A824AAB9624'
+KEYID_ECC = 'E1F9040D7A3F6DAFAC897CD3D3B95DA243E48A39'
+
+
+def cmdstr(cmd):
+  """Get a nicely quoted shell command."""
+  ret = []
+  for arg in cmd:
+    if not re.match(r'^[a-zA-Z0-9/_.=-]+$', arg):
+      arg = f'"{arg}"'
+    ret.append(arg)
+  return ' '.join(ret)
+
+
+def run(opts, cmd, check=True, **kwargs):
+  """Helper around subprocess.run to include logging."""
+  print('+', cmdstr(cmd))
+  if opts.dryrun:
+    cmd = ['true', '--'] + cmd
+  try:
+    return subprocess.run(cmd, check=check, **kwargs)
+  except subprocess.CalledProcessError as e:
+    print(f'aborting: {e}', file=sys.stderr)
+    sys.exit(1)
+
+
+def import_release_key(opts):
+  """Import the public key of the official release repo signing key."""
+  # Extract the key from our repo launcher.
+  launcher = getattr(opts, 'launcher', os.path.join(TOPDIR, 'repo'))
+  print(f'Importing keys from "{launcher}" launcher script')
+  with open(launcher, encoding='utf-8') as fp:
+    data = fp.read()
+
+  keys = re.findall(
+      r'\n-----BEGIN PGP PUBLIC KEY BLOCK-----\n[^-]*'
+      r'\n-----END PGP PUBLIC KEY BLOCK-----\n', data, flags=re.M)
+  run(opts, ['gpg', '--import'], input='\n'.join(keys).encode('utf-8'))
+
+  print('Marking keys as fully trusted')
+  run(opts, ['gpg', '--import-ownertrust'],
+      input=f'{KEYID_DSA}:6:\n'.encode('utf-8'))