Fixes https://github.com/flutter/flutter/issues/154857.
Does so by:
* adding `await chromiumLauncher.connect(chrome, false);` before the `close` call to make sure we enter[ the block ](9cd2fc90af/packages/flutter_tools/lib/src/web/chrome.dart (L521-L535))that actually tries to close chromium
* adding an `onGetTab` callback to `FakeChromeConnectionWithTab`, which the test now uses to throw a StateError upon `getTab` getting called.
## How I verified this change
1. Change `Chromium.close` from using the safer `getChromeTabGuarded` function to using the previous method of calling `ChromeConnection.getTab` directly. Do so by applying this diff:
```diff
diff --git a/packages/flutter_tools/lib/src/web/chrome.dart b/packages/flutter_tools/lib/src/web/chrome.dart
index c9a5fdab81..81bc246ff9 100644
--- a/packages/flutter_tools/lib/src/web/chrome.dart
+++ b/packages/flutter_tools/lib/src/web/chrome.dart
@@ -520,7 +520,7 @@ class Chromium {
Duration sigtermDelay = Duration.zero;
if (_hasValidChromeConnection) {
try {
- final ChromeTab? tab = await getChromeTabGuarded(chromeConnection,
+ final ChromeTab? tab = await chromeConnection.getTab(
(_) => true, retryFor: const Duration(seconds: 1));
if (tab != null) {
final WipConnection wipConnection = await tab.connect();
```
2. Then, run the test, which should correctly fail:
```
dart test test/web.shard/chrome_test.dart --name="chrome.close can recover if getTab throws a StateError"`
```
3. Revert the change from step 1 and run again. The test should now pass.
The choice screen is irrelevant when debugging apps locally. `flutter run` creates a separate user profile for testing only. It doesn't touch users' browser settings.
Fixes https://github.com/flutter/flutter/issues/153928
Fixes https://github.com/flutter/flutter/issues/153972 (unless the cause of https://github.com/flutter/flutter/issues/153064#issuecomment-2305662791 happens to also prevent this fix from working).
In this PR, I've looked for all non-test call sites of `ChromeConnection.getTabs` and made sure are all wrapped in `try` blocks that handle `IOException` (`HttpException` is what we see in crash reporting, but I figure any `IOException` might as well be the same for all intents and purposes).
I plan on cherry-picking this the stable branch.
https://github.com/flutter/flutter/pull/150645 tries to shut down Chrome by sending a browser close command through a debug protocol. The webkit_inspection_protocol library used to send the command may throw a SocketException if Chrome has already been shut down.
The previous approach of killing the Chromium parent process sometimes caused leaks of child processes on Windows. The Browser.close command in the debug protocol will tell Chromium to shut down all of its processes.
- added language for all code blocks
- replaced `bash` or `shell` with `sh` for consistency.
- added `sh` and `console` in the GitHub template link generator.
- updated test for GitHub template.
This makes several changes to flutter web app bootstrapping.
* The build now produces a `flutter_bootstrap.js` file.
* By default, this file does the basic streamlined startup of a flutter app with the service worker settings and no user configuration.
* The user can also put a `flutter_bootstrap.js` file in the `web` subdirectory in the project directory which can have whatever custom bootstrapping logic they'd like to write instead. This file is also templated, and can use any of the tokens that can be used with the `index.html` (with the exception of `{{flutter_bootstrap_js}}`, see below).
* Introduced a few new templating tokens for `index.html`:
* `{{flutter_js}}` => inlines the entirety of `flutter.js`
* `{{flutter_service_worker_version}}` => replaced directly by the service worker version. This can be used instead of the script that sets the `serviceWorkerVersion` local variable that we used to have by default.
* `{{flutter_bootstrap_js}}` => inlines the entirety of `flutter_bootstrap.js` (this token obviously doesn't apply to `flutter_bootstrap.js` itself).
* Changed `IndexHtml` to be called `WebTemplate` instead, since it is used for more than just the index.html now.
* We now emit warnings at build time for certain deprecated flows:
* Warn on the old service worker version pattern (i.e.`(const|var) serviceWorkerVersion = null`) and recommends using `{{flutter_service_worker_version}}` token instead
* Warn on use of `FlutterLoader.loadEntrypoint` and recommend using `FlutterLoader.load` instead
* Warn on manual loading of `flutter_service_worker.js`.
* The default `index.html` on `flutter create` now uses an async script tag with `flutter_bootstrap.js`.
This is an attempt at a reland of https://github.com/flutter/flutter/pull/141396
The main changes here that are different than the original PR is fixes to wire up the `flutter test` command properly with the web renderer.
Dual Web Compile has had some issues where `flutter test` is not respecting the `--web-renderer` flag for some reason. I haven't gotten entirely to the bottom of the issue, but for now we need to rever these changes while I investigate. This reverts the following PRs:
https://github.com/flutter/flutter/pull/143128https://github.com/flutter/flutter/pull/141396
While doing this revert, I had a few merge conflicts with https://github.com/flutter/flutter/pull/142760, and I tried to resolve the merge conflicts within the spirit of that PR's change, but @chingjun I might need your input on whether the imports I have modified are okay with regards to the change you were making.
This implements dual compile via the newly available flutter.js bootstrapping APIs for intelligent build fallback.
* Users can now use the `FlutterLoader.load` API from flutter.js
* Flutter tool injects build info into the `index.html` of the user so that the bootstrapper knows which build variants are available to bootstrap
* The semantics of the `--wasm` flag for `flutter build web` have changed:
- Instead of producing a separate `build/web_wasm` directory, the output goes to the `build/web` directory like a normal web build
- Produces a dual build that contains two build variants: dart2wasm+skwasm and dart2js+CanvasKit. The dart2wasm+skwasm will only work on Chrome in a cross-origin isolated context, all other environments will fall back to dart2js+CanvasKit.
- `--wasm` and `--web-renderer` are now mutually exclusive. Since there are multiple build variants with `--wasm`, the web renderer cannot be expressed via a single command-line flag. For now, we are hard coding what build variants are produced with the `--wasm` flag, but I plan on making this more customizable in the future.
* Build targets now can optionally provide a "build key" which can uniquely identify any specific parameterization of that build target. This way, the build target can invalidate itself by changing its build key. This works a bit better than just stuffing everything into the environment defines because (a) it doesn't invalidate the entire build, just the targets which are affected and (b) settings for multiple build variants don't translate well to the flat map of environment defines.
This PR adds a test that reproduces the problem described in the linked issue: hot restart on the web seems to not update if the app being run is `const`.
The new test is expected to fail, until the `const` issue with hot restart in the web is resolved.
Expected failure mode is a 15s timeout in the following test:
```
02:31 +3 ~1 -1: Hot reload (index.html: Default) (with `const MyApp()`)): newly added code executes during hot restart [E]
TimeoutException after 0:00:15.000000: Future not completed
dart:async _startMicrotaskLoop
...
```
(And then a bunch of output that I'm not 100% sure is intended :))
## Issues
* #141588
This implements https://github.com/flutter/flutter/issues/132654#issuecomment-1738221257, namely:
Make `Chromium.close` more robust:
* Send `SIGTERM` and wait up to 5 seconds, if the process exited, great! Return from the function.
* If the process has not exited, then send a `SIGKILL`, which is a much firmer way to exit a process. Same as before, wait up to 5 seconds, if the process exited, great! Return from the function.
* If it still hasn't exited then give up trying to exit Chromium, just print a warning to the console and return from the function.
Bonus: a few nullability fixes and extra `-v` logging.
Fixes https://github.com/flutter/flutter/issues/132654
You can now specify a --local-web-sdk flag to point to a wasm_release folder. This will make it so that only artifacts that pertain to the web sdk are overridden to point to the wasm_release folder. Other artifacts (such as impellerc) will pull from the cache, or from the --local-engine path if that is specified.
This also uses precompiled platform kernel files for both ddc and dart2js
* Provide flutter sdk kernel files to dwds launcher instead of dart ones
* Update log test to report all warnings
* Update licences for new files
* Addressed CR comments
* Addressed CR comments
