…TTER_SWIFT_PACKAGE_MANAGER` (#159502)

Previously, the Swift Package Manager feature could be overridden using
the `SWIFT_PACKAGE_MANAGER` environment variable.

This environment variable name is a bit generic and might collide with
other tooling.

This renames the environment variable to
`FLUTTER_SWIFT_PACKAGE_MANAGER`.

**This is a breaking change**, however, [we haven't documented this
environment
variable](https://docs.flutter.dev/packages-and-plugins/swift-package-manager/for-app-developers#how-to-turn-on-swift-package-manager).

Addresses #159121

## Pre-launch Checklist

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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
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`what lint is failing ?`
![Capture d’écran 2024-11-25
215213](https://github.com/user-attachments/assets/c2be911c-981a-4d47-8c52-9802d4855666)

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- [x] I read and followed the [Flutter Style Guide], including [Features
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- [ ] I listed at least one issue that this PR fixes in the description
above.
- [ ] I updated/added relevant documentation (doc comments with `///`).
- [ ] I added new tests to check the change I am making, or this PR is
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…159742)

flutter/engine@c7f553e...938f816

2024-12-03 [email protected] Roll Fuchsia Linux SDK from
j424tGVlulTUzBtPj... to CCKZcL47N_2_vxAtS... (flutter/engine#56921)

Also rolling transitive DEPS:
  fuchsia/sdk/core/linux-amd64 from j424tGVlulTU to CCKZcL47N_2_

If this roll has caused a breakage, revert this CL and stop the roller
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#156457

sever -> server

…iguration` (#159137)

fix failing lint `Consider using 'register' to avoid unnecessary
configuration` in Android studio :
![Capture d’écran 2024-11-19
132110](https://github.com/user-attachments/assets/ffc98203-5563-4846-aa42-60a0b8defa27)

![Capture d’écran 2024-11-19
133050](https://github.com/user-attachments/assets/7671b6f4-5a18-460a-8456-608a40e6da22)
see #147122
## 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].
- [ ] I listed at least one issue that this PR fixes in the description
above.
- [ ] 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.

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… `true` (#159701)

Work towards flutter/devtools#8582

Follow up to #159454

Only include the `truncated` field if it is `true`. We accidentally were
including it even when `false` which is what caused the regression in
the DevTools tests.

Fixes [Proposal to add iconAlignment to
ButtonStyle](#153350)

### Description

This PR refactors buttons `IconAlignment`, adds to `ButtonStyle` and
`styleFrom` methods. Which makes it possible to customize iconAlignment
same way as icon size and color in the `ButtonStyle`.

### Code sample 

<details>
<summary>expand to view the code sample</summary> 

```dart
import 'package:flutter/material.dart';

enum StyleSegment {
  none,
  widgetButtonStyle,
  widgetStyleFrom,
  themeButtonStyle,
  themeStyleFrom
}

void main() => runApp(const MyApp());

class MyApp extends StatefulWidget {
  const MyApp({super.key});

  @OverRide
  State<MyApp> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  StyleSegment _selectedSegment = StyleSegment.none;

  ThemeData? getThemeStyle() => switch (_selectedSegment) {
        StyleSegment.themeButtonStyle => ThemeData(
            textButtonTheme: const TextButtonThemeData(
              style: ButtonStyle(
                iconAlignment: IconAlignment.end,
              ),
            ),
            elevatedButtonTheme: const ElevatedButtonThemeData(
              style: ButtonStyle(
                iconAlignment: IconAlignment.end,
              ),
            ),
            outlinedButtonTheme: const OutlinedButtonThemeData(
              style: ButtonStyle(
                iconAlignment: IconAlignment.end,
              ),
            ),
            filledButtonTheme: const FilledButtonThemeData(
              style: ButtonStyle(
                iconAlignment: IconAlignment.end,
              ),
            ),
          ),
        StyleSegment.themeStyleFrom => ThemeData(
            textButtonTheme: TextButtonThemeData(
              style: TextButton.styleFrom(
                iconAlignment: IconAlignment.end,
              ),
            ),
            elevatedButtonTheme: const ElevatedButtonThemeData(
              style: ButtonStyle(
                iconAlignment: IconAlignment.end,
              ),
            ),
            outlinedButtonTheme: const OutlinedButtonThemeData(
              style: ButtonStyle(
                iconAlignment: IconAlignment.end,
              ),
            ),
            filledButtonTheme: const FilledButtonThemeData(
              style: ButtonStyle(
                iconAlignment: IconAlignment.end,
              ),
            ),
          ),
        _ => null
      };

  ButtonStyle? getTextButtonStyle() => switch (_selectedSegment) {
        StyleSegment.widgetStyleFrom => TextButton.styleFrom(
            iconAlignment: IconAlignment.end,
          ),
        StyleSegment.widgetButtonStyle => const ButtonStyle(
            iconAlignment: IconAlignment.end,
          ),
        _ => null
      };

  ButtonStyle? getElevatedButtonStyle() => switch (_selectedSegment) {
        StyleSegment.widgetStyleFrom => ElevatedButton.styleFrom(
            iconAlignment: IconAlignment.end,
          ),
        StyleSegment.widgetButtonStyle => const ButtonStyle(
            iconAlignment: IconAlignment.end,
          ),
        _ => null
      };

  ButtonStyle? getOutlinedButtonStyle() => switch (_selectedSegment) {
        StyleSegment.widgetStyleFrom => OutlinedButton.styleFrom(
            iconAlignment: IconAlignment.end,
          ),
        StyleSegment.widgetButtonStyle => const ButtonStyle(
            iconAlignment: IconAlignment.end,
          ),
        _ => null
      };

  ButtonStyle? getFilledButtonStyle() => switch (_selectedSegment) {
        StyleSegment.widgetStyleFrom => FilledButton.styleFrom(
            iconAlignment: IconAlignment.end,
          ),
        StyleSegment.widgetButtonStyle => const ButtonStyle(
            iconAlignment: IconAlignment.end,
          ),
        _ => null
      };

  @OverRide
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      theme: getThemeStyle(),
      home: Scaffold(
        appBar: AppBar(
          title: const Text('ButtonStyle Icon Alignment'),
        ),
        body: Center(
          child: Padding(
            padding: const EdgeInsets.all(16.0),
            child: Column(
              mainAxisAlignment: MainAxisAlignment.center,
              spacing: 20,
              children: [
                Wrap(
                  spacing: 16,
                  runSpacing: 16,
                  children: [
                    TextButton.icon(
                      style: getTextButtonStyle(),
                      onPressed: () {},
                      icon: const Icon(Icons.add),
                      label: const Text('Text Button'),
                    ),
                    ElevatedButton.icon(
                      style: getElevatedButtonStyle(),
                      onPressed: () {},
                      icon: const Icon(Icons.add),
                      label: const Text('Elevated Button'),
                    ),
                    OutlinedButton.icon(
                      style: getOutlinedButtonStyle(),
                      onPressed: () {},
                      icon: const Icon(Icons.add),
                      label: const Text('Outlined Button'),
                    ),
                    FilledButton.icon(
                      style: getFilledButtonStyle(),
                      onPressed: () {},
                      icon: const Icon(Icons.add),
                      label: const Text('Filled Button'),
                    ),
                    FilledButton.tonalIcon(
                      style: getFilledButtonStyle(),
                      onPressed: () {},
                      icon: const Icon(Icons.add),
                      label: const Text('Filled Button Tonal Icon'),
                    ),
                  ],
                ),
                StyleSelection(
                  selectedSegment: _selectedSegment,
                  onSegmentSelected: (StyleSegment segment) {
                    setState(() {
                      _selectedSegment = segment;
                    });
                  },
                ),
              ],
            ),
          ),
        ),
      ),
    );
  }
}

class StyleSelection extends StatelessWidget {
  const StyleSelection(
      {super.key,
      this.selectedSegment = StyleSegment.none,
      required this.onSegmentSelected});

  final ValueChanged<StyleSegment> onSegmentSelected;
  final StyleSegment selectedSegment;

  @OverRide
  Widget build(BuildContext context) {
    return SegmentedButton<StyleSegment>(
      segments: const <ButtonSegment<StyleSegment>>[
        ButtonSegment<StyleSegment>(
          value: StyleSegment.none,
          label: Text('None'),
        ),
        ButtonSegment<StyleSegment>(
          value: StyleSegment.widgetButtonStyle,
          label: Text('Widget Button Style'),
        ),
        ButtonSegment<StyleSegment>(
          value: StyleSegment.widgetStyleFrom,
          label: Text('Widget Style From'),
        ),
        ButtonSegment<StyleSegment>(
          value: StyleSegment.themeButtonStyle,
          label: Text('Theme Button Style'),
        ),
        ButtonSegment<StyleSegment>(
          value: StyleSegment.themeStyleFrom,
          label: Text('Theme Style From'),
        ),
      ],
      selected: <StyleSegment>{selectedSegment},
      onSelectionChanged: (Set<StyleSegment> newSelection) {
        onSegmentSelected(newSelection.first);
      },
    );
  }
}
```

</details>

### Preview

<img width="1175" alt="Screenshot 2024-11-12 at 12 10 43"
src="https://github.com/user-attachments/assets/a28207c5-0ef7-41fa-a45c-e9401df897a0">


## 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].
- [ ] 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
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Increases from the default 30 minutes to 45.
After devtools testing was re-enabled in
flutter/tests#432 the tree is red because the
test shard exceeds 30 minutes again.

## 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].
- [ ] 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].
- [ ] I followed the [breaking change policy] and added [Data Driven
Fixes] where supported.
- [x] All existing and new tests are passing.

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…159776)

flutter/engine@938f816...1e6864c

2024-12-04 [email protected] [Android] Save
back handling state in Activity/Fragment bundle (flutter/engine#56715)
2024-12-03 [email protected] Split keyevent channel into own
class (flutter/engine#56911)
2024-12-03 [email protected] Add tests for errors encoding
message channel request and method calls. (flutter/engine#56914)
2024-12-03 [email protected] Roll Skia from 8dc8bdc364f5 to
e02d856f86fb (3 revisions) (flutter/engine#56926)
2024-12-03 [email protected] [Impeller] invalidate cached atlas
data, take 2. (flutter/engine#56925)
2024-12-03 [email protected] Add typeface_proxy
dependency to the Skia build script for the Android font manager
(flutter/engine#56924)

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
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Part of #58192

## 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
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---------

Co-authored-by: Victor Sanni <[email protected]>

Format controller.dart of flutter_test

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…159778)

flutter/engine@1e6864c...ee1b6ed

2024-12-04 [email protected] Remove unused constant
(flutter/engine#56929)

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flutter/engine@ee1b6ed...29d6640

2024-12-04 [email protected] Roll Skia from 4ad05fb042c5 to
c9647f13cded (2 revisions) (flutter/engine#56933)
2024-12-04 [email protected] Roll Skia from e02d856f86fb to
4ad05fb042c5 (1 revision) (flutter/engine#56931)

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…59784)

Reland #159072 without change.
The initial PR was flagged for a non-related perf regression, see
#159337 (comment)

Fixes #159063

<!-- meta-tags: To be used by the automation script only, DO NOT MODIFY.
{
  "name": "Mac_benchmark flutter_view_macos__start_up"
}
-->
Issue link: #159540

Co-authored-by: Chris Bracken <[email protected]>

…159750)

Related to #157543

Fixes #143505

I am unable to test sending `TextInputClient.performAction` when the
enter key is pressed on desktop platforms. I have created an issue for
this: #156414. The current test approach is to check whether the
`DropdownMenu` has focus.

## Pre-launch Checklist

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---------

Co-authored-by: Bruno Leroux <[email protected]>