Fixed logLevel filter bug so that filter now works as expected (#35777)

tvolkert · web-flow · commit b712a172f969 · 2019-07-09T13:14:38.000-07:00
Cherry-pick flutter/engine#9717
diff --git a/bin/internal/engine.version b/bin/internal/engine.version
@@ -1 +1 @@
-b1cb0d9e9b44393efeb735f664672a74732cdc8b
+54ad777fd29b031b87c7a68a6637fb48c0932862
diff --git a/dev/bots/test.dart b/dev/bots/test.dart
@@ -787,10 +787,10 @@ Future<void> _verifyVersion(String filename) async {
     print('$redLine');
     exit(1);
   }
-  final RegExp pattern = RegExp(r'^\d+\.\d+\.\d+(?:|-pre\.\d+|\+hotfix\.\d+)$');
+  final RegExp pattern = RegExp(r'^\d+\.\d+\.\d+(?:|-pre\.\d+|\+hotfix\.\d+(-pre\.\d+)?)$');
   if (!version.contains(pattern)) {
     print('$redLine');
-    print('The version logic generated an invalid version string.');
+    print('The version logic generated an invalid version string ($version).');
     print('$redLine');
     exit(1);
   }

Original file line number	Diff line number	Diff line change
`@@ -787,10 +787,10 @@ Future<void> _verifyVersion(String filename) async {`
`787`	`787`	`print('$redLine');`
`788`	`788`	`exit(1);`
`789`	`789`	`}`
`790`		`- final RegExp pattern = RegExp(r'^\d+\.\d+\.\d+(?:\|-pre\.\d+\|\+hotfix\.\d+)$');`
	`790`	`+ final RegExp pattern = RegExp(r'^\d+\.\d+\.\d+(?:\|-pre\.\d+\|\+hotfix\.\d+(-pre\.\d+)?)$');`
`791`	`791`	`if (!version.contains(pattern)) {`
`792`	`792`	`print('$redLine');`
`793`		`- print('The version logic generated an invalid version string.');`
	`793`	`+ print('The version logic generated an invalid version string ($version).');`
`794`	`794`	`print('$redLine');`
`795`	`795`	`exit(1);`
`796`	`796`	`}`