xref: /aosp_15_r20/external/perfetto/ui/release/roll_branch.py (revision 6dbdd20afdafa5e3ca9b8809fa73465d530080dc)
1# Copyright (C) 2023 The Android Open Source Project
2#
3# Licensed under the Apache License, Version 2.0 (the "License");
4# you may not use this file except in compliance with the License.
5# You may obtain a copy of the License at
6#
7#      http://www.apache.org/licenses/LICENSE-2.0
8#
9# Unless required by applicable law or agreed to in writing, software
10# distributed under the License is distributed on an "AS IS" BASIS,
11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12# See the License for the specific language governing permissions and
13# limitations under the License.
14
15import sys
16import json
17
18
19def main():
20  [_, channel_name, rev] = sys.argv
21
22  with open('channels.json', 'r') as f:
23    channels_json = json.load(f)
24
25  found = False
26  for channel in channels_json['channels']:
27    if channel['name'] == channel_name:
28      if channel['rev'] == rev:
29        print(f'Channel {channel_name} is already at {rev}!')
30        return
31      channel['rev'] = rev
32      found = True
33      break
34
35  if not found:
36    print(f'Failed to find channel {channel_name}!')
37    return
38
39  with open('channels.json', 'w') as f:
40    json.dump(channels_json, f, indent=2)
41    # Right now channels.json ends with two line breaks,
42    # keep it that way to minimise diffs.
43    f.write('\n\n')
44
45
46if __name__ == "__main__":
47  main()
48