Files
android/libwvdrmengine/wv-android-genrule.py
Robert Shih f6b1fb288a WVCdm version stamping
First, version.txt will be stamped by Android CI with a release
candidate name like "ZV1A.240307.001".

Next, a genrule will read version.txt and embed the release candidate
name inside the Widevine CDM binary.

See also:
- go/wv-trunk "Versioning"
- cl/616721723

Bug: 327241925
Test: Coastguard
Change-Id: I892ee957c058ac5f624912a38a048781af5f3487
2024-03-18 21:32:04 -07:00

68 lines
2.1 KiB
Python

import argparse
import datetime
import json
import os
import re
import sys
CDM_MAJOR = 19
CDM_MINOR = 0
def get_build_id(args):
with args.version_txt as file:
return file.read().strip()
def hdr(args):
output = f'''\
#ifndef {args.guard}
#define {args.guard}
#define WV_ANDROID_BUILD_ID "{get_build_id(args)}"
#endif // {args.guard}'''
print(output)
def apex_manifest(args):
rc = get_build_id(args)
m = re.match(r'[A-Z0-9]{4}\.(?P<build_date>\d{6})\.', rc)
if m:
v = int(f'{CDM_MAJOR}{CDM_MINOR}{m["build_date"]}')
else:
v = 1
out = dict(name=args.name, version=v, requireNativeLibs=['liboemcrypto.so'])
print(json.dumps(out))
if __name__ == '__main__':
parser = argparse.ArgumentParser(description='Widevine Android genrule utility')
parser.set_defaults(func=lambda _: parser.print_help())
subparsers = parser.add_subparsers(help='Available subcommands')
hdr_description = 'Generate build id C++ header (stdout)'
parser_hdr = subparsers.add_parser('build_id_header', help=hdr_description)
parser_hdr.add_argument('--guard', type=str,
default='WVCDM_WV_ANDROID_BUILD_ID_H_',
help='Include guard')
parser_hdr.add_argument('version_txt', type=argparse.FileType('r'),
nargs='?',
default=sys.stdin,
help='version.txt file')
parser_hdr.set_defaults(func=hdr)
apex_description = 'Generate APEX manifest json (stdout)'
parser_apex = subparsers.add_parser('apex_manifest', help=apex_description)
parser_apex.add_argument('--name', help='apex name',
default='com.google.android.widevine')
parser_apex.add_argument('version_txt', type=argparse.FileType('r'),
nargs='?',
default=sys.stdin,
help='version.txt file')
parser_apex.set_defaults(func=apex_manifest)
# Parse the arguments and call the appropriate function
args = parser.parse_args()
args.func(args)