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[flutter_tool] Track APK sha calculation time (#33923)

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Zachary Anderson 2019-06-05 15:28:19 -07:00 committed by GitHub
parent b3382b9907
commit 5180201fe1
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1 changed files with 8 additions and 1 deletions
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9
packages/flutter_tools/lib/src/base/utils.dart
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@ -61,7 +61,14 @@ String hex(List<int> bytes) {
}
String calculateSha(File file) {
return hex(sha1.convert(file.readAsBytesSync()).bytes);
final Stopwatch stopwatch = Stopwatch()..start();
final List<int> bytes = file.readAsBytesSync();
printTrace('calculateSha: reading file took ${stopwatch.elapsedMicroseconds}us');
stopwatch.reset();
final String sha = hex(sha1.convert(bytes).bytes);
stopwatch.stop();
printTrace('calculateSha: computing sha took ${stopwatch.elapsedMicroseconds}us');
return sha;
}
/// Convert `foo_bar` to `fooBar`.