[flutter_tools] Enable hot reload on the web
Update the defaults so hot reload is enabled on web development builds
by default.
This enables the use of a new module representation in the compiled
JavaScript.
Passing `--no-web-experimental-hot-reload` will disable the ability to
hot reload
and return to the AMD JavaScript module representation.
This change avoids enabling hot reload in the flutter drive tests since
they rely on
`-d web-server` which has known startup issues. When
https://github.com/dart-lang/sdk/issues/60289 is
resolved it should be safe to enable hot reload by default for the
`flutter drive`
tests.
Fixes: https://github.com/flutter/flutter/issues/167510
Bug:
* https://github.com/flutter/flutter/issues/169475
I don't want to skip building native assets and sweep the actual cause
of this under the rug. If native assets would be used, the app build
would succeed but accessing the assets would fail at runtime. It seems
the project path should always occur as a package root in the package
config json. So this is a state error.
## **BREAKING CHANGE**
Adopting Apple's UISceneDelegate protocol shifts the initialization
order of apps. For the common cases we've made sure they will work
without change. The one case that will require a change is any app that
in `-[UIApplicateDelegate didFinishLaunchingWithOptions:]` assumes that
`UIApplicationDelegate.window.rootViewController` is a
`FlutterViewController` instance. Users should follow the [migration
guide](https://docs.google.com/document/d/16WsqYbANmhupw-gxGPQPZ9B3yz1YBIviS-N1UyIQNSE/edit?tab=t.0#heading=h.txry2otwqko3)
to update that usage.
## Changes since revert
It's been rebased onto the FlutterPluginRegistrant PR which was used for
migration. The dynamic selection of the UISceneDelegate has been
removed, instead there is a flutter tool migration to the Info.plist.
## Description
fixes: https://github.com/flutter/flutter/issues/167267
design doc:
https://docs.google.com/document/d/1ZfcQOs-UKRa9jsFG84-MTFeibZTLKCvPQLxF2eskx44/edit?tab=t.0
relands https://github.com/flutter/flutter/pull/168396
relands https://github.com/flutter/flutter/pull/168914
relands https://github.com/flutter/flutter/pull/169276
## Pre-launch Checklist
- [x] I read the [Contributor Guide] and followed the process outlined
there for submitting PRs.
- [x] I read the [Tree Hygiene] wiki page, which explains my
responsibilities.
- [x] I read and followed the [Flutter Style Guide], including [Features
we expect every widget to implement].
- [x] I signed the [CLA].
- [x] I listed at least one issue that this PR fixes in the description
above.
- [x] I updated/added relevant documentation (doc comments with `///`).
- [x] I added new tests to check the change I am making, or this PR is
[test-exempt].
- [x] I followed the [breaking change policy] and added [Data Driven
Fixes] where supported.
- [x] All existing and new tests are passing.
With this change the web.shard test suite runs all existing tests on all
platforms with the version of the web debug builds that is the flutter
tools default (does not support stateful hot reload).
The linux bot configuration will also run some of the tests using the
new web debug build (supports stateful hot reload). The timeout has been
increased for this configuration to allow the additional tests to run to
completion.
The mac and windows configurations skip all tests for the new web debug
builds.
In the future the new build output will become the flutter tools default
and the balance of where the tests tests are run will flip until the
ability to opt out of the new build output is removed.
This change is not ideal because we are still not fully testing all
features with the two versions of the web debug builds that are
available to users. If given the opportunity we should add additional
bot configurations to run all the tests with the output that supports
stateful hot reload.
Fixes: https://github.com/flutter/flutter/issues/169304
Issue: https://github.com/flutter/flutter/issues/169634
Closes https://github.com/flutter/flutter/issues/169598 (which explains
the integration test failure).
Closes https://github.com/flutter/flutter/issues/169160.
Closes https://github.com/flutter/flutter/issues/165803.
This is the only diff from 5d013c73ba:
```diff
diff --git a/packages/flutter_tools/lib/src/build_system/targets/common.dart b/packages/flutter_tools/lib/src/build_system/targets/common.dart
index 61583210e47..67731019a05 100644
--- a/packages/flutter_tools/lib/src/build_system/targets/common.dart
+++ b/packages/flutter_tools/lib/src/build_system/targets/common.dart
@@ -308,10 +308,18 @@ class KernelSnapshot extends Target {
if (flavor == null) {
return;
}
- if (!dartDefines.any((String element) => element.startsWith(kAppFlavor))) {
- // If the flavor is not already in the dart defines, add it.
- dartDefines.add('$kAppFlavor=$flavor');
- }
+
+ // It is possible there is a flavor already in dartDefines, from another
+ // part of the build process, but this should take precedence as it happens
+ // last (xcodebuild execution).
+ //
+ // See https://github.com/flutter/flutter/issues/169598.
+
+ // If the flavor is already in the dart defines, remove it.
+ dartDefines.removeWhere((String define) => define.startsWith(kAppFlavor));
+
+ // Then, add it to the end.
+ dartDefines.add('$kAppFlavor=$flavor');
}
}
```
This enables breakpoint management for hot restart and hot reload.
--start-paused is passed by VS code.
Also fixes a small issue where we're not passing the isolate ID when hot
reloading. It doesn't matter what we pass as there's only one isolate,
but we should keep consistent and use the isolate ID that already
exists.
https://github.com/dart-lang/sdk/issues/60186
## Pre-launch Checklist
- [x] I read the [Contributor Guide] and followed the process outlined
there for submitting PRs.
- [x] I read the [Tree Hygiene] wiki page, which explains my
responsibilities.
- [x] I read and followed the [Flutter Style Guide], including [Features
we expect every widget to implement].
- [x] I signed the [CLA].
- [x] I listed at least one issue that this PR fixes in the description
above.
- [x] I updated/added relevant documentation (doc comments with `///`).
- [ ] I added new tests to check the change I am making, or this PR is
[test-exempt].
- [x] I followed the [breaking change policy] and added [Data Driven
Fixes] where supported.
- [x] All existing and new tests are passing.
Fixes#136109 P2
Related #148028 P1
Roadmap:
- [x] find why not working (described in #136109)
- [x] create new API with backward compatibility
(`--browser-dimension=393×852@3`)
- [x] fix edge cases
- [x] internal testing
- [x] add documentation (flutter drive -h)
This PR:
- Fixes Chrome bug from dart side
- Adds pixelRatio mobile emulation in web
- Adds new notation: 393,852 -> 393×852[@1]
- Leaves previous behavior as it was, so 393,852 will give wrong size
until Chrome will fix it. But you can use 393×852@1.
---------
Co-authored-by: Mouad Debbar <mdebbar@google.com>
<!-- start_original_pr_link -->
Reverts: flutter/flutter#169451
<!-- end_original_pr_link -->
<!-- start_initiating_author -->
Initiated by: matanlurey
<!-- end_initiating_author -->
<!-- start_revert_reason -->
Reason for reverting: Broke a number of post-submit tests
(ios_app_extension, packages_autoroller).
<!-- end_revert_reason -->
<!-- start_original_pr_author -->
Original PR Author: mosuem
<!-- end_original_pr_author -->
<!-- start_reviewers -->
Reviewed By: {matanlurey}
<!-- end_reviewers -->
<!-- start_revert_body -->
This change reverts the following previous change:
Reland after #169357.
Switch Flutter to use pub workspaces as a preparation to unpin selected
packages.
Assumptions:
1. No packages in this repository are published to pub.dev --> We can
use `any` dependencies in most local pubspecs, as the global constraint
defines the version. An exception are the packages used outside of this
repo with an `sdk` dependency, namely `flutter_localizations`,
`flutter_test`, and `flutter`.
2. The "universes" `{flutter_tools}` and `{flutter,
flutter_localizations, flutter_goldens}` can use different packages
versions, as they are not resolved together. --> We do not need to
upgrade them in sync, we can first do one "universe", then the other.
Based on these assumptions, we use
https://github.com/mosuem/pubspec_merger.dart to merge all packages in
the `flutter` universe into a top-level pub workspace.
The `flutter` and `flutter_tools` workspaces being separate also ensures
that changes to `flutter` will not inadvertently break `flutter_tools`,
with not-so-nice consequences for our users which would be unable to run
`flutter upgrade`.
There is a third "top-level" pubspec besides `./pubspec.yaml` and
`packages/flutter_tools/pubspec.yaml`, namely
`packages/flutter_tools/.../widget_preview_scaffold/pubspec.yaml`. This
is an artifact due to it living under `flutter_tools`, so it can't be
part of the `./pubspec.yaml` workspace. Moving it would be a larger
change, and out of the scope of this PR.
This required a rewrite of the update-packages tool, but the main
functionality stays the same, as well as the argument names, to ensure a
seamless transition.
## Pre-launch Checklist
- [x] I read the [Contributor Guide] and followed the process outlined
there for submitting PRs.
- [x] I read the [Tree Hygiene] wiki page, which explains my
responsibilities.
- [x] I read and followed the [Flutter Style Guide], including [Features
we expect every widget to implement].
- [x] I signed the [CLA].
- [x] I listed at least one issue that this PR fixes in the description
above.
- [x] I updated/added relevant documentation (doc comments with `///`).
- [x] I added new tests to check the change I am making, or this PR is
[test-exempt].
- [x] I followed the [breaking change policy] and added [Data Driven
Fixes] where supported.
- [x] All existing and new tests are passing.
If you need help, consider asking for advice on the #hackers-new channel
on [Discord].
<!-- Links -->
[Contributor Guide]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#overview
[Tree Hygiene]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md
[test-exempt]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#tests
[Flutter Style Guide]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md
[Features we expect every widget to implement]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md#features-we-expect-every-widget-to-implement
[CLA]: https://cla.developers.google.com/
[flutter/tests]: https://github.com/flutter/tests
[breaking change policy]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#handling-breaking-changes
[Discord]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Chat.md
[Data Driven Fixes]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Data-driven-Fixes.md
<!-- end_revert_body -->
Co-authored-by: auto-submit[bot] <flutter-engprod-team@google.com>
Reland after #169357.
Switch Flutter to use pub workspaces as a preparation to unpin selected
packages.
Assumptions:
1. No packages in this repository are published to pub.dev --> We can
use `any` dependencies in most local pubspecs, as the global constraint
defines the version. An exception are the packages used outside of this
repo with an `sdk` dependency, namely `flutter_localizations`,
`flutter_test`, and `flutter`.
2. The "universes" `{flutter_tools}` and `{flutter,
flutter_localizations, flutter_goldens}` can use different packages
versions, as they are not resolved together. --> We do not need to
upgrade them in sync, we can first do one "universe", then the other.
Based on these assumptions, we use
https://github.com/mosuem/pubspec_merger.dart to merge all packages in
the `flutter` universe into a top-level pub workspace.
The `flutter` and `flutter_tools` workspaces being separate also ensures
that changes to `flutter` will not inadvertently break `flutter_tools`,
with not-so-nice consequences for our users which would be unable to run
`flutter upgrade`.
There is a third "top-level" pubspec besides `./pubspec.yaml` and
`packages/flutter_tools/pubspec.yaml`, namely
`packages/flutter_tools/.../widget_preview_scaffold/pubspec.yaml`. This
is an artifact due to it living under `flutter_tools`, so it can't be
part of the `./pubspec.yaml` workspace. Moving it would be a larger
change, and out of the scope of this PR.
This required a rewrite of the update-packages tool, but the main
functionality stays the same, as well as the argument names, to ensure a
seamless transition.
## Pre-launch Checklist
- [x] I read the [Contributor Guide] and followed the process outlined
there for submitting PRs.
- [x] I read the [Tree Hygiene] wiki page, which explains my
responsibilities.
- [x] I read and followed the [Flutter Style Guide], including [Features
we expect every widget to implement].
- [x] I signed the [CLA].
- [x] I listed at least one issue that this PR fixes in the description
above.
- [x] I updated/added relevant documentation (doc comments with `///`).
- [x] I added new tests to check the change I am making, or this PR is
[test-exempt].
- [x] I followed the [breaking change policy] and added [Data Driven
Fixes] where supported.
- [x] All existing and new tests are passing.
If you need help, consider asking for advice on the #hackers-new channel
on [Discord].
<!-- Links -->
[Contributor Guide]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#overview
[Tree Hygiene]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md
[test-exempt]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#tests
[Flutter Style Guide]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md
[Features we expect every widget to implement]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md#features-we-expect-every-widget-to-implement
[CLA]: https://cla.developers.google.com/
[flutter/tests]: https://github.com/flutter/tests
[breaking change policy]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#handling-breaking-changes
[Discord]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Chat.md
[Data Driven Fixes]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Data-driven-Fixes.md
This change removes references to Observatory, including:
- Deprecated flags
- Deprecated embedder APIs
- Outdated documentation
- Documentation instances where "VM service" should have been used
- Incorrectly named tests / directories
As a part of this change, `--serve-observatory` is no longer a valid
flag.
Observatory is still available for now via the `_serveObservatory` RPC,
but will be removed in a follow up PR once we've prepared for breakages
in G3.
Work towards https://github.com/dart-lang/sdk/issues/50233
FYI @a-siva
Switch Flutter to use pub workspaces as a preparation to unpin selected
packages.
Assumptions:
1. No packages in this repository are published to pub.dev --> We can
use `any` dependencies in most local pubspecs, as the global constraint
defines the version. An exception are the packages used outside of this
repo with an `sdk` dependency, namely `flutter_localizations`,
`flutter_test`, and `flutter`.
2. The "universes" `{flutter_tools}` and `{flutter,
flutter_localizations, flutter_goldens}` can use different packages
versions, as they are not resolved together. --> We do not need to
upgrade them in sync, we can first do one "universe", then the other.
Based on these assumptions, we use
https://github.com/mosuem/pubspec_merger.dart to merge all packages in
the `flutter` universe into a top-level pub workspace.
The `flutter` and `flutter_tools` workspaces being separate also ensures
that changes to `flutter` will not inadvertently break `flutter_tools`,
with not-so-nice consequences for our users which would be unable to run
`flutter upgrade`.
There is a third "top-level" pubspec besides `./pubspec.yaml` and
`packages/flutter_tools/pubspec.yaml`, namely
`packages/flutter_tools/.../widget_preview_scaffold/pubspec.yaml`. This
is an artifact due to it living under `flutter_tools`, so it can't be
part of the `./pubspec.yaml` workspace. Moving it would be a larger
change, and out of the scope of this PR.
This required a rewrite of the update-packages tool, but the main
functionality stays the same, as well as the argument names, to ensure a
seamless transition.
## Pre-launch Checklist
- [x] I read the [Contributor Guide] and followed the process outlined
there for submitting PRs.
- [x] I read the [Tree Hygiene] wiki page, which explains my
responsibilities.
- [x] I read and followed the [Flutter Style Guide], including [Features
we expect every widget to implement].
- [x] I signed the [CLA].
- [x] I listed at least one issue that this PR fixes in the description
above.
- [x] I updated/added relevant documentation (doc comments with `///`).
- [x] I added new tests to check the change I am making, or this PR is
[test-exempt].
- [x] I followed the [breaking change policy] and added [Data Driven
Fixes] where supported.
- [x] All existing and new tests are passing.
If you need help, consider asking for advice on the #hackers-new channel
on [Discord].
<!-- Links -->
[Contributor Guide]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#overview
[Tree Hygiene]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md
[test-exempt]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#tests
[Flutter Style Guide]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md
[Features we expect every widget to implement]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md#features-we-expect-every-widget-to-implement
[CLA]: https://cla.developers.google.com/
[flutter/tests]: https://github.com/flutter/tests
[breaking change policy]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#handling-breaking-changes
[Discord]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Chat.md
[Data Driven Fixes]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Data-driven-Fixes.md
This feature landed opt-in in 3.29 and opt-out in 3.32:
https://docs.flutter.dev/release/breaking-changes/flutter-generate-i10n-source
In this PR, we remove the ability to use `flutter config
--no-enable-explicit-package-dependencies`, and remove all places that
opt-in to the flag (which are currently NOPs). Follow-up PRs will
refactor tests relying on the older behavior, and then finally remove
`package:flutter_gen` and the `.flutter-plugins` (legacy format) file
guarded by this flag.
Essentially this PR is
`s/getSyntheticGeneratedFileContent/getGeneratedFileContent` for a
particular test suite.
Made one non-test change (`bool useSyntheticPackage = false`) that
in-practice should be a NOP, mostly so I could catch (and remove) cases
where the default argument was already being passed-in. A follow-up PR
will continue to remove the synthetic package support features (and
refactor or remove tests where necessary).
This flag has been enabled by default for quite some time in `master`,
and in the current `stable`.
This is the first of many PRs to get rid of the flag and the deprecated
code it is guarding.
