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[flutter_tools] Catch exceptions when starting Chrome to launch DevTools - #191215
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If Google Chrome is not installed, attempting to launch DevTools throws a ProcessException from Chrome.start. Because this call was unawaited and unhandled, it caused the flutter tool to crash. Fixes: flutter#182307
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This pull request wraps the browser-launching logic in a try-catch block to handle and log exceptions when startChrome fails, and adds a unit test to verify this behavior. The review feedback suggests refactoring the immediately invoked asynchronous function expression (IIFE) into a named local helper function to improve code readability.
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Description
If Google Chrome is not installed, attempting to launch DevTools throws a
ProcessExceptionfromChrome.start. Because this call was unawaited and unhandled, it caused the flutter tool to crash.This change wraps the
startChromeinvocation in a try-catch block to gracefully catchExceptions and log the error message vialogger.printErrorinstead of crashing.Related Issues
Fixes #182307
Tests
launchDevToolsInBrowser handles startChrome failureinpackages/flutter_tools/test/general.shard/proxied_devices/proxied_devices_test.dart.