1536 Commits

Author SHA1 Message Date
Andrew Marshall
907bda7d0c
add stacktrace support when requested for host builds (#181264)
Adds support for backtraces when requested in host builds

### Before:

```
Note: Google Test filter = Play/RendererTest.BabysFirstTriangle/OpenGLES
[==========] Running 1 test from 1 test suite.
[----------] Global test environment set-up.
[----------] 1 test from Play/RendererTest
[ RUN      ] Play/RendererTest.BabysFirstTriangle/OpenGLES
...
Segmentation fault         (core dumped) __EGL_VENDOR_LIBRARY_FILENAMES=/usr/share/glvnd/egl_vendor.d/50_mesa.json ./out/host_debug_unopt/exe.unstripped/impeller_unittests --enable_playground --gtest_filter='Play/RendererTest.BabysFirstTriangle/OpenGLES'
```

### After:
```
Note: Google Test filter = Play/RendererTest.BabysFirstTriangle/OpenGLES
[==========] Running 1 test from 1 test suite.
[----------] Global test environment set-up.
[----------] 1 test from Play/RendererTest
[ RUN      ] Play/RendererTest.BabysFirstTriangle/OpenGLES
...
[symbolize_elf.inc : 379] RAW: Unable to get high fd: rc=0, limit=1024
[ERROR:flutter/fml/backtrace.cc(108)] Caught signal SIGSEGV during program execution.
Frame 0: 0x55831f19fbc4 impeller::DeviceBufferGLES::GetBufferData()
Frame 1: 0x55831f186cd3 impeller::BufferBindingsGLES::BindUniformBufferV2()
Frame 2: 0x55831f186b66 impeller::BufferBindingsGLES::BindUniformBufferV3()
Frame 3: 0x55831f1861da impeller::BufferBindingsGLES::BindUniformBuffer()
Frame 4: 0x55831f185fea impeller::BufferBindingsGLES::BindUniformData()
Frame 5: 0x55831f1cb112 impeller::EncodeCommandsInReactor()
...
Segmentation fault         (core dumped) __EGL_VENDOR_LIBRARY_FILENAMES=/usr/share/glvnd/egl_vendor.d/50_mesa.json ./out/host_debug_unopt/exe.unstripped/impeller_unittests --enable_playground --gtest_filter='Play/RendererTest.BabysFirstTriangle/OpenGLES'
```

Fixes #181156

## Pre-launch Checklist

- [x] I read the [Contributor Guide] and followed the process outlined
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2026-01-30 17:13:10 +00:00
auto-submit[bot]
da72d5936d
Reverts "[ Tool / Engine ] Cleanup x86 references (#181152)" (#181643)
<!-- start_original_pr_link -->
Reverts: flutter/flutter#181152
<!-- end_original_pr_link -->
<!-- start_initiating_author -->
Initiated by: chingjun
<!-- end_initiating_author -->
<!-- start_revert_reason -->
Reason for reverting: broke internal tests.
<!-- end_revert_reason -->
<!-- start_original_pr_author -->
Original PR Author: bkonyi
<!-- end_original_pr_author -->

<!-- start_reviewers -->
Reviewed By: {mboetger, gaaclarke}
<!-- end_reviewers -->

<!-- start_revert_body -->
This change reverts the following previous change:
Fixes https://github.com/flutter/flutter/issues/170142
<!-- end_revert_body -->

Co-authored-by: auto-submit[bot] <flutter-engprod-team@google.com>
2026-01-29 03:07:48 +00:00
Ben Konyi
b6fa57dd2e
[ Tool / Engine ] Cleanup x86 references (#181152)
Fixes https://github.com/flutter/flutter/issues/170142
2026-01-28 20:05:26 +00:00
sutes-work
6173c0dd81
Roll Fuchsia GN SDK from NAEC5tfgSl8g94nwp... to JLBh4Z9PKsjIJcqDU... (#181139)
and fix logging which has changed.

Bug: b/456458551

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This fixes the Fuchsia SDK roll which was blocked due to some logging
changes that were made.

This fixes internal bug b/456458551.

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Co-authored-by: zijiehe@ <68449066+zijiehe-google-com@users.noreply.github.com>
2026-01-22 23:33:56 +00:00
Kostia Sokolovskyi
3892c57dd6
Add new motion accessibility features to iOS. (#178102)
Closes https://github.com/flutter/flutter/issues/177330
Contributes to https://github.com/flutter/flutter/issues/175878

### Description

This PR implements support for three new iOS accessibility motion
features.
- `Auto-Play Animated Images`: Informs the app when the user has chosen
to pause automatically playing GIFs and other animated content.
- `Auto-Play Video Previews`: Informs the app when the user has disabled
the automatic playback of video previews.
- `Prefer Non-Blinking Cursor`: Informs the app that the user prefers a
non-blinking text insertion indicator in editable text fields.

The original issue requested seven features. I was able to find and
implement features with clear, public, and general-purpose APIs.

The remaining features were not included for the following reasons:

- `Vehicle Motion Cues`: No public API found.
- `Auto-Play Message Effects`: No public API found. This is likely a
feature exclusive to the Messages framework.
- `Limit Frame Rate`: No public API found.
- `Dim Flashing Lights`: There is a public API available
[MADimFlashingLightsEnabled](https://developer.apple.com/documentation/mediaaccessibility/madimflashinglightsenabled()).
It is intended for media playback frameworks. It's unclear if exposing
this feature is necessary or actionable for a general-purpose
application UI.

| Feature Name | API | Flutter AccessibilityFeatures |
| :-: | :-: | :-: |
| Vehicle Motion Cues | - | - |
| Dim Flashing Lights |
[MADimFlashingLightsEnabled](https://developer.apple.com/documentation/mediaaccessibility/madimflashinglightsenabled())
| - |
| Auto-Play Animated Images |
[animatedImagesEnabled](https://developer.apple.com/documentation/accessibility/accessibilitysettings/animatedimagesenabled)
| autoPlayAnimatedImages |
| Auto-Play Video Previews |
[isVideoAutoplayEnabled](https://developer.apple.com/documentation/uikit/uiaccessibility/isvideoautoplayenabled)
| autoPlayVideos |
| Auto-Play Message Effects | - | - |
| Prefer Non-Blinking Cursor |
[prefersNonBlinkingTextInsertionIndicator](https://developer.apple.com/documentation/accessibility/accessibilitysettings/prefersnonblinkingtextinsertionindicator)
| deterministicCursor |
| Limit Frame Rate | - | - |

The `AccessibilityFeatures.swift` was introduced to refactor all native
iOS accessibility logic into a single, dedicated class. This change
moves the responsibility of querying settings and observing
notifications out of `FlutterViewController.mm`, which cleans up the
controller, simplifies future maintenance, and makes logic
unit-testable.

### Demo


https://github.com/user-attachments/assets/1b3e7a2f-03b4-4716-959e-dbeea938e4d2

<details closed><summary>Code sample</summary>

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

void main() {
  runApp(
    MaterialApp(
      debugShowCheckedModeBanner: false,
      home: Screen(),
    ),
  );
}

class Screen extends StatefulWidget {
  @override
  State<Screen> createState() => _ScreenState();
}

class _ScreenState extends State<Screen> with WidgetsBindingObserver {
  @override
  void initState() {
    super.initState();
    WidgetsBinding.instance.addObserver(this);
  }

  @override
  void didChangeAccessibilityFeatures() {
    super.didChangeAccessibilityFeatures();
    if (mounted) {
      setState(() {});
    }
  }

  @override
  void dispose() {
    WidgetsBinding.instance.removeObserver(this);
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    final accessibilityFeatures = View.of(
      context,
    ).platformDispatcher.accessibilityFeatures;

    return Scaffold(
      body: Center(
        child: Column(
          spacing: 10,
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            for (final feature in [
              'accessibleNavigation: ${accessibilityFeatures.accessibleNavigation}',
              'invertColors: ${accessibilityFeatures.invertColors}',
              'disableAnimations: ${accessibilityFeatures.disableAnimations}',
              'boldText: ${accessibilityFeatures.boldText}',
              'reduceMotion: ${accessibilityFeatures.reduceMotion}',
              'highContrast: ${accessibilityFeatures.highContrast}',
              'onOffSwitchLabels: ${accessibilityFeatures.onOffSwitchLabels}',
              'supportsAnnounce: ${accessibilityFeatures.supportsAnnounce}',
              'autoPlayAnimatedImages: ${accessibilityFeatures.autoPlayAnimatedImages}',
              'autoPlayVideos: ${accessibilityFeatures.autoPlayVideos}',
              'deterministicCursor: ${accessibilityFeatures.deterministicCursor}',
            ])
              Text(feature),
          ],
        ),
      ),
    );
  }
}
```

</details>

## Pre-launch Checklist

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---------

Co-authored-by: chunhtai <47866232+chunhtai@users.noreply.github.com>
2026-01-08 21:06:41 +00:00
Gray Mackall
72db6159d7
Also host build-tools 33.0.1, platform-34, and platform-35 in our android_sdk bundle (#180653)
See
https://github.com/flutter/flutter/issues/172956#issuecomment-3717942182,
but basically we use these in ci, and if we put them in the bundle we
eliminate more downloading, which has caused flakes.

38 instead of 37 because I ran the script once without java on my path,
which meant before I could ctrl+c we registered an empty
https://chrome-infra-packages.appspot.com/p/flutter/android/sdk/all/mac-amd64/+/xLObmfS7IH8ElsjrUJNC8YjtTB5R8oYuYv8765UuwzsC,
so that would have conflicted and been a headache to remove the tag
from.

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Co-authored-by: Gray Mackall <mackall@google.com>
2026-01-07 22:04:33 +00:00
Gray Mackall
ef3dbceed2
Modify the create_cipd_packages.sh script to allow uploading multiple build-tools versions, and update to new bundle (#179963)
1. modifies the script slightly to allow passing in multiple versions
for a given element
2. updates to build tools 36.1.0, and adds 35.0.0 and 34.0.0
3. also adds cmake to the list, version 3.22.1, as that downloaded in
our ci currently
4. changes ci yaml and deps file accordingly

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---------

Co-authored-by: Gray Mackall <mackall@google.com>
2025-12-17 18:14:14 +00:00
LN Liberda
bb91eec6eb
Minor fixes for libstdc++ 15 (#178601)
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*Replace this paragraph with a description of what this PR is changing
or adding, and why. Consider including before/after screenshots.*
This adds some includes and changes an API in an internal tool to use
`std::string` instead of `std::string_view` for a path, fixing builds
with libstdc++ 15

*List which issues are fixed by this PR. You must list at least one
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2025-12-16 19:39:00 +00:00
Gray Mackall
91cc68f695
[Reland] Unmodified android sdk bundle (#179920)
Relands https://github.com/flutter/flutter/pull/179647

There were only two failing tests (there were also two bringup failures,
the `mac_arm64_mokey` versions of these)

https://ci.chromium.org/ui/p/flutter/builders/prod/Mac_mokey%20run_release_test/3866/overview

https://ci.chromium.org/ui/p/flutter/builders/prod/Mac_mokey%20run_debug_test_android/5454/overview

They failed with the same logs
```
Task result:
{
  "success": false,
  "reason": "Task failed: flutter run  had unexpected output on standard error."
}
```

The stderr in question:
```
[2025-12-15 14:06:56.311794] [STDOUT] run:stderr: - integration_test requires Android NDK 28.2.13676358
[2025-12-15 14:06:56.311989] [STDOUT] run:stderr: Fix this issue by using the highest Android NDK version (they are backward compatible).
[2025-12-15 14:06:56.312019] [STDOUT] run:stderr: Add the following to /opt/s/w/ir/x/w/rc/tmpr6kj09d_/flutter sdk/dev/integration_tests/ui/android/app/build.gradle:
[2025-12-15 14:06:56.312074] [STDOUT] run:stderr: 
[2025-12-15 14:06:56.312092] [STDOUT] run:stderr:     android {
[2025-12-15 14:06:56.312144] [STDOUT] run:stderr:         ndkVersion = "28.2.13676358"
[2025-12-15 14:06:56.312162] [STDOUT] run:stderr:         ...
[2025-12-15 14:06:56.312205] [STDOUT] run:stderr:     }
```

We can just set the ndk version to `flutter.ndkVersion`, which is this
value. It's also what is set in the templates, so it isn't a hack that
doesn't represent a real flutter app. Verified the tests pass now with
```
../../bin/cache/dart-sdk/bin/dart bin/test_runner.dart test -t run_release_test
../../bin/cache/dart-sdk/bin/dart bin/test_runner.dart test -t run_debug_test_android
```

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---------

Co-authored-by: Gray Mackall <mackall@google.com>
2025-12-16 19:34:38 +00:00
Andrew Marshall
5526436a94
add default-linux-sysroot to gn frontend args (#179303)
<!--
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Adds `[no-]default-linux-sysroot` to the `gn` frontend to control the
`use_default_linux_sysroot` argument.

Closes #179298

## 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.
2025-12-15 23:35:15 +00:00
auto-submit[bot]
8edbbb7391
Reverts "Unmodified android sdk bundle (#179647)" (#179904)
<!-- start_original_pr_link -->
Reverts: flutter/flutter#179647
<!-- end_original_pr_link -->
<!-- start_initiating_author -->
Initiated by: gmackall
<!-- end_initiating_author -->
<!-- start_revert_reason -->
Reason for reverting: Mac_mokey run_release_test failing
<!-- end_revert_reason -->
<!-- start_original_pr_author -->
Original PR Author: gmackall
<!-- end_original_pr_author -->

<!-- start_reviewers -->
Reviewed By: {reidbaker, jtmcdole}
<!-- end_reviewers -->

<!-- start_revert_body -->
This change reverts the following previous change:
Changes our cipd hosted android sdk+ndk bundle to no longer modify
directory structure from what Android directly provides, allowing AGP to
find the ndk automatically and preventing downloading.

1. Changes the `create_cipd_packages.sh` script so we don't move the ndk
2. Uses the new script to upload a
[36v4unmodified](https://chrome-infra-packages.appspot.com/p/flutter/android/sdk/all/linux-amd64/+/version:36v4unmodified)
bundle
3. Changes DEPS+ci.yaml to reference the new bundle
4. Changes GN build rules accordingly
5. Removes special config in existing build.gradle files to point at the
location of the ndk - agp should now know where it is without conig
6. For some tests, passes in an environment variable pointing to the ndk
location, to override the environment variable passed by the recipes.
This variable is respected by the tool, so the recipes passing it,
pointing to the wrong place, is problematic. After this change lands we
can stop passing it in the recipes, and then we can remove this special
config in the tests. But adding it temporarily allows us to make this
change without coordinating a recipes change at the same moment, and
probably breaking things out of band.

Logs from a random postsubmit run of `Mac
build_android_host_app_with_module_aar` on the tree currently:

https://logs.chromium.org/logs/flutter/buildbucket/cr-buildbucket/8695664517253382913/+/u/run_build_android_host_app_with_module_aar/stdout
We see 
> [2025-12-12 10:49:49.223087] [STDOUT] stdout: Checking the license for
package NDK (Side by side) 28.2.13676358 in
/Volumes/Work/s/w/ir/cache/android/sdk/licenses
[2025-12-12 10:49:49.223221] [STDOUT] stdout: License for package NDK
(Side by side) 28.2.13676358 accepted.
[2025-12-12 10:49:49.223268] [STDOUT] stdout: Preparing "Install NDK
(Side by side) 28.2.13676358 v.28.2.13676358".
[2025-12-12 10:50:14.093824] [STDOUT] stdout: "Install NDK (Side by
side) 28.2.13676358 v.28.2.13676358" ready.
[2025-12-12 10:50:14.093909] [STDOUT] stdout: Installing NDK (Side by
side) 28.2.13676358 in
/Volumes/Work/s/w/ir/cache/android/sdk/ndk/28.2.13676358
[2025-12-12 10:50:14.093947] [STDOUT] stdout: "Install NDK (Side by
side) 28.2.13676358 v.28.2.13676358" complete.
[2025-12-12 10:50:14.410724] [STDOUT] stdout: "Install NDK (Side by
side) 28.2.13676358 v.28.2.13676358" finished.

Example of no longer downloading:
Logs from a presubmit run:

https://logs.chromium.org/logs/flutter/buildbucket/cr-buildbucket/8695732180931529361/+/u/run_build_android_host_app_with_module_aar/stdout

We don't see these logs. We still see android build tools downloading -
we can probably tackle that in another pr.

## Pre-launch Checklist

- [ ] I read the [Contributor Guide] and followed the process outlined
there for submitting PRs.
- [ ] I read the [Tree Hygiene] wiki page, which explains my
responsibilities.
- [ ] I read and followed the [Flutter Style Guide], including [Features
we expect every widget to implement].
- [ ] 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].
- [ ] I followed the [breaking change policy] and added [Data Driven
Fixes] where supported.
- [ ] All existing and new tests are passing.

If you need help, consider asking for advice on the #hackers-new channel
on [Discord].

**Note**: The Flutter team is currently trialing the use of [Gemini Code
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<!-- Links -->
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[Tree Hygiene]:
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[test-exempt]:
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[Flutter Style Guide]:
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[Features we expect every widget to implement]:
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[CLA]: https://cla.developers.google.com/
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<!-- end_revert_body -->

Co-authored-by: auto-submit[bot] <flutter-engprod-team@google.com>
2025-12-15 21:55:49 +00:00
Gray Mackall
c0b808c9ed
Unmodified android sdk bundle (#179647)
Changes our cipd hosted android sdk+ndk bundle to no longer modify
directory structure from what Android directly provides, allowing AGP to
find the ndk automatically and preventing downloading.

1. Changes the `create_cipd_packages.sh` script so we don't move the ndk
2. Uses the new script to upload a
[36v4unmodified](https://chrome-infra-packages.appspot.com/p/flutter/android/sdk/all/linux-amd64/+/version:36v4unmodified)
bundle
3. Changes DEPS+ci.yaml to reference the new bundle
4. Changes GN build rules accordingly
5. Removes special config in existing build.gradle files to point at the
location of the ndk - agp should now know where it is without conig
6. For some tests, passes in an environment variable pointing to the ndk
location, to override the environment variable passed by the recipes.
This variable is respected by the tool, so the recipes passing it,
pointing to the wrong place, is problematic. After this change lands we
can stop passing it in the recipes, and then we can remove this special
config in the tests. But adding it temporarily allows us to make this
change without coordinating a recipes change at the same moment, and
probably breaking things out of band.

Logs from a random postsubmit run of `Mac
build_android_host_app_with_module_aar` on the tree currently:

https://logs.chromium.org/logs/flutter/buildbucket/cr-buildbucket/8695664517253382913/+/u/run_build_android_host_app_with_module_aar/stdout
We see 
> [2025-12-12 10:49:49.223087] [STDOUT] stdout: Checking the license for
package NDK (Side by side) 28.2.13676358 in
/Volumes/Work/s/w/ir/cache/android/sdk/licenses
[2025-12-12 10:49:49.223221] [STDOUT] stdout: License for package NDK
(Side by side) 28.2.13676358 accepted.
[2025-12-12 10:49:49.223268] [STDOUT] stdout: Preparing "Install NDK
(Side by side) 28.2.13676358 v.28.2.13676358".
[2025-12-12 10:50:14.093824] [STDOUT] stdout: "Install NDK (Side by
side) 28.2.13676358 v.28.2.13676358" ready.
[2025-12-12 10:50:14.093909] [STDOUT] stdout: Installing NDK (Side by
side) 28.2.13676358 in
/Volumes/Work/s/w/ir/cache/android/sdk/ndk/28.2.13676358
[2025-12-12 10:50:14.093947] [STDOUT] stdout: "Install NDK (Side by
side) 28.2.13676358 v.28.2.13676358" complete.
[2025-12-12 10:50:14.410724] [STDOUT] stdout: "Install NDK (Side by
side) 28.2.13676358 v.28.2.13676358" finished.

Example of no longer downloading:
Logs from a presubmit run:

https://logs.chromium.org/logs/flutter/buildbucket/cr-buildbucket/8695732180931529361/+/u/run_build_android_host_app_with_module_aar/stdout

We don't see these logs. We still see android build tools downloading -
we can probably tackle that in another pr.

## Pre-launch Checklist

- [ ] I read the [Contributor Guide] and followed the process outlined
there for submitting PRs.
- [ ] I read the [Tree Hygiene] wiki page, which explains my
responsibilities.
- [ ] I read and followed the [Flutter Style Guide], including [Features
we expect every widget to implement].
- [ ] 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].
- [ ] I followed the [breaking change policy] and added [Data Driven
Fixes] where supported.
- [ ] All existing and new tests are passing.

If you need help, consider asking for advice on the #hackers-new channel
on [Discord].

**Note**: The Flutter team is currently trialing the use of [Gemini Code
Assist for
GitHub](https://developers.google.com/gemini-code-assist/docs/review-github-code).
Comments from the `gemini-code-assist` bot should not be taken as
authoritative feedback from the Flutter team. If you find its comments
useful you can update your code accordingly, but if you are unsure or
disagree with the feedback, please feel free to wait for a Flutter team
member's review for guidance on which automated comments should be
addressed.

<!-- 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]:
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[Features we expect every widget to implement]:
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[CLA]: https://cla.developers.google.com/
[flutter/tests]: https://github.com/flutter/tests
[breaking change policy]:
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[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

---------

Co-authored-by: DoLT <dolt@guide.inc>
Co-authored-by: Gray Mackall <mackall@google.com>
Co-authored-by: John "codefu" McDole <john@mcdole.org>
2025-12-15 20:18:31 +00:00
John "codefu" McDole
00c4c2aeda
fix: fresh install of windows support (#179720)
- python 3.14 (pipes -> shlex)
- content_aware_hash.ps1 call from gn
- visual studio 2026 (MS changed directory naming)
2025-12-11 18:58:27 +00:00
Jason Simmons
e25d71b086
Ensure that the engine converts std::filesystem::path objects to UTF-8 strings on Windows (#179528)
Fixes https://github.com/flutter/flutter/issues/178896

---------

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
2025-12-10 21:39:24 +00:00
Mouad Debbar
e97f1f45fc
[web] Fix some gn warnings (#178313) 2025-12-02 19:33:26 +00:00
Kate Lovett
9d96df2364
Modernize framework lints (#179089)
WIP

Commits separated as follows:
- Update lints in analysis_options files
- Run `dart fix --apply`
- Clean up leftover analysis issues 
- Run `dart format .` in the right places.

Local analysis and testing passes. Checking CI now.

Part of https://github.com/flutter/flutter/issues/178827
- Adoption of flutter_lints in examples/api coming in a separate change
(cc @loic-sharma)

## Pre-launch Checklist

- [ ] I read the [Contributor Guide] and followed the process outlined
there for submitting PRs.
- [ ] I read the [Tree Hygiene] wiki page, which explains my
responsibilities.
- [ ] I read and followed the [Flutter Style Guide], including [Features
we expect every widget to implement].
- [ ] 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].
- [ ] I followed the [breaking change policy] and added [Data Driven
Fixes] where supported.
- [ ] All existing and new tests are passing.

If you need help, consider asking for advice on the #hackers-new channel
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**Note**: The Flutter team is currently trialing the use of [Gemini Code
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<!-- Links -->
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[Tree Hygiene]:
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[Flutter Style Guide]:
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[Features we expect every widget to implement]:
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[breaking change policy]:
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[Discord]:
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[Data Driven Fixes]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Data-driven-Fixes.md
2025-11-26 01:10:39 +00:00
Kate Lovett
460d55e659
Bump Dart to 3.9 (#179041)
Prep for https://github.com/flutter/flutter/issues/178827

This bumps Dart to 3.9.

We are holding off on 3.10 until we can include best practices for dot
shorthands in the style guide, which will follow the lint update in
#178827

## 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].

**Note**: The Flutter team is currently trialing the use of [Gemini Code
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Comments from the `gemini-code-assist` bot should not be taken as
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[Data Driven Fixes]:
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2025-11-25 00:41:40 +00:00
gaaclarke
e398158b48
updated licenses_cpp readme (#178874)
## 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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[test-exempt]:
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[Flutter Style Guide]:
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[Features we expect every widget to implement]:
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[CLA]: https://cla.developers.google.com/
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[Data Driven Fixes]:
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2025-11-24 22:14:11 +00:00
Srivats Venkataraman
811f9c4c9e
Corrects invalid Flutter wiki links (#178158)
Fixes: [#177797](https://github.com/flutter/flutter/issues/177797)

This PR replaces all flutter/wikis with the correct URL across all
READMEs

Note:

I wasn't able to find the correct readme for this:
https://github.com/flutter/flutter/wiki/Debugging-the-engine#debugging-windows-builds-with-visual-studio


## 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.
- [ ] 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.
- [ ] All existing and new tests are passing.

If you need help, consider asking for advice on the #hackers-new channel
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**Note**: The Flutter team is currently trialing the use of [Gemini Code
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Comments from the `gemini-code-assist` bot should not be taken as
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---------

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
Co-authored-by: Gray Mackall <34871572+gmackall@users.noreply.github.com>
Co-authored-by: LouiseHsu <louisehsu@google.com>
2025-11-17 19:40:52 +00:00
Matt Boetger
6815bca01e
[Reland] Generate ignore lockfiles and Update Android Embedder Dependencies (#178538)
This PR is the first of 2 that will update the Android Embedder to use
the new dependency for AndroidX Exifinterface. This PR generates the
necessary ignore lockfiles files. These files will be deleted in a
follow-up PR that also regenerates the gradle lockfiles from the
universal engine artifacts.

Addresses [#177071](https://github.com/flutter/flutter/issues/177071)

## 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.
2025-11-14 20:17:20 +00:00
Matt Boetger
91176cc349
[Reland] Gradle Lockfile workaround (#178485)
Create a workaround for generating gradle lock files. When the ignore
files exist, gradle locking will be disabled. This will allow deps for
the embedder to be checked in, and then in a follow-up PR the lockfiles
can correctly be updated and the ignore files can be deleted.

Note: This does NOT include the addition of the new exifinterface dep
for the Android embedder.

Fixes: https://github.com/flutter/flutter/issues/177066

## 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.
2025-11-13 23:25:13 +00:00
auto-submit[bot]
d48aa42950
Reverts "Gradle Lockfile workaround and Android Embedder dependency change for ExifInterface (#177508)" (#178428)
<!-- start_original_pr_link -->
Reverts: flutter/flutter#177508
<!-- end_original_pr_link -->
<!-- start_initiating_author -->
Initiated by: jtmcdole
<!-- end_initiating_author -->
<!-- start_revert_reason -->
Reason for reverting: tree is no bueno 

```
┌─ Flutter Fix ───────────────────────────────────────────────────────────────────┐ [2025-11-12 16:47:24.646119] [STDOUT] stdout: │ You need to update the lockfile, or disable Gradle dependency locking. │ [2025-11-12 16:47:24.646119] [STDOUT] stdout: │ To regenerate the lockfiles run: `.\gradlew.bat :generateLockfiles` in │ [2025-11-12 16:47:24.646119] [STDOUT] stdout: │ c:\
<!-- end_revert_reason -->
<!-- start_original_pr_author -->
Original PR Author: mboetger
<!-- end_original_pr_author -->

<!-- start_reviewers -->
Reviewed By: {reidbaker, gmackall}
<!-- end_reviewers -->

<!-- start_revert_body -->
This change reverts the following previous change:
Create a workaround for generating gradle lock files.  When the ignore file exists, gradle locking will be disabled. This will allow deps for the embedder to be checked in, and then in a follow-up PR the lockfiles can correctly be updated and the ignore file can be deleted.

Fixes: #177066, #177071

## 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.


<!-- end_revert_body -->

Co-authored-by: auto-submit[bot] <flutter-engprod-team@google.com>
2025-11-13 03:13:19 +00:00
Matt Boetger
564e4b4543
Gradle Lockfile workaround and Android Embedder dependency change for ExifInterface (#177508)
Create a workaround for generating gradle lock files. When the ignore
file exists, gradle locking will be disabled. This will allow deps for
the embedder to be checked in, and then in a follow-up PR the lockfiles
can correctly be updated and the ignore file can be deleted.

Fixes: #177066, #177071

## 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.

---------

Co-authored-by: Reid Baker <1063596+reidbaker@users.noreply.github.com>
2025-11-12 22:38:07 +00:00
Andrew Marshall
aa9dc9ac54
support passing the arm cpu variant to the build system (#176917)
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Support passing the ARM cpu variant through to the engine build from the
`tools/gn` front end.

Fixes #176870 

## 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 `///`).
2025-11-10 21:26:18 +00:00
Jason Simmons
acdca87356
Reland "Update all uses of mutable SkPath methods to use SkPathBuilder" (#178142)
This is a reland of https://github.com/flutter/flutter/pull/177738 with
a fix to the `Op` function in `tools/path_ops`.

To match the previous behavior, `Op` will use `SkPathBuilder::operator=`
to copy the result path so that attributes like the fill type will be
copied.

---------

Co-authored-by: Kaylee Lubick <kjlubick@users.noreply.github.com>
2025-11-07 16:36:27 +00:00
auto-submit[bot]
1d7845ae00
Reverts "Update all uses of mutable SkPath methods to use SkPathBuilder (#177738)" (#178125)
<!-- start_original_pr_link -->
Reverts: flutter/flutter#177738
<!-- end_original_pr_link -->
<!-- start_initiating_author -->
Initiated by: chingjun
<!-- end_initiating_author -->
<!-- start_revert_reason -->
Reason for reverting: Broke internal tests. Some shapes are not drawn.
<!-- end_revert_reason -->
<!-- start_original_pr_author -->
Original PR Author: kjlubick
<!-- end_original_pr_author -->

<!-- start_reviewers -->
Reviewed By: {jason-simmons}
<!-- end_reviewers -->

<!-- start_revert_body -->
This change reverts the following previous change:
Skia is removing the APIs that allow changing an SkPath. This updates
those callsites to use SkPathBuilder where appropriate.

## Pre-launch Checklist

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<!-- end_revert_body -->

Co-authored-by: auto-submit[bot] <flutter-engprod-team@google.com>
2025-11-06 19:50:19 +00:00
Kaylee Lubick
6925f8b815
Update all uses of mutable SkPath methods to use SkPathBuilder (#177738)
Skia is removing the APIs that allow changing an SkPath. This updates
those callsites to use SkPathBuilder where appropriate.

## Pre-launch Checklist

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- [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 `///`).
- [x] I added new tests to check the change I am making, or this PR is
[test-exempt].
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Fixes] where supported.
- [ ] All existing and new tests are passing.

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2025-11-06 14:46:25 +00:00
Kaylee Lubick
aed2e42321
[skia] Explicitly disable XPS backend (#177050)
Skia's working on some breaking changes to the XPS backend. Flutter does
not use this backend explicitly, but it is being compiled in on Windows
builds. We can explicitly disable it all the time to avoid any
unexpected breakages from impacting Flutter.

## Pre-launch Checklist

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- [x] I read the [Tree Hygiene] wiki page, which explains my
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[test-exempt].
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2025-11-03 20:35:41 +00:00
Jason Simmons
8dd2a072ca
Update the path used by the download_fuchsia_sdk.py script to //third_party/fuchsia-sdk (#177794)
See https://github.com/flutter/flutter/pull/177118
2025-10-30 22:58:33 +00:00
Gray Mackall
bba912ef87
Copy symlinks when creating android cipd package, and update to package w/ symlinks (#177638)
`cp -r` isn't [well
defined](https://unix.stackexchange.com/questions/18712/difference-between-cp-r-and-cp-r-copy-command),
but on my mac (and probably on the other android team members macs) it
doesn't copy symlinks (instead it follows the symlink and copies the
file).

`cp -a` is well defined, and copies the symlinks. This will probably fix
https://github.com/flutter/flutter/issues/177286, the symlinks are there
for sure locally so it is just a question of if the upload process
tramples them. But it sounds like cipd supports this, so I imagine it
will fix the issue.

## Pre-launch Checklist

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---------

Co-authored-by: Gray Mackall <mackall@google.com>
2025-10-30 00:30:21 +00:00
jesswrd
125b1fba5a
[Gradle 9] Fix Engine Deps (#177623)
Fixed gradle 9 deprecation warning in engine. Most of the gradle files
in engine are from external third party libraries and do not affect
flutter's build.

Fixes https://github.com/flutter/flutter/issues/173321
Fixes https://github.com/flutter/flutter/issues/173318

## Pre-launch Checklist

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2025-10-28 22:27:09 +00:00
Andrew Marshall
e0ff789894
add gn flag to optimize builds for size (#176835)
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Adds a `gn` flag to optimize builds for size over speed when
optimization is requested. The existing behaviour is that Windows,
Android and iOS builds are always optimized for size. This has not
changed.

The flag allows other builds to prefer size over speed.

Closes #176685 

## Pre-launch Checklist

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2025-10-27 21:47:02 +00:00
Andrew Marshall
eb713a5fa8
disable metal for crosscompile from mac to linux (#176639)
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Disable metal support when cross compiling from mac to linux targets,
othewise build script generation fails.

Closes #176637

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2025-10-27 21:47:02 +00:00
Jason Simmons
67068ee0fe
Roll Abseil to Chromium's 5b92b04a2e (based on Abseil commit fc4481e968) (#177059)
This also moves the Abseil sources from //flutter/third_party to
//third_party to allow use of Chromium's GN scripts without
modification.

See internal issue b/400498305
2025-10-24 14:22:29 +00:00
Jason Simmons
a771543deb
Change the root path of the license crawl to engine/src (#177352)
Previously the license script looked for licenses within the
engine/src/flutter tree. This PR updates the script to support the move
of Abseil and the Fuchsia SDK from engine/src/flutter to
engine/src/third_party.

See https://github.com/flutter/flutter/pull/177059 and
https://github.com/flutter/flutter/pull/177118
2025-10-23 22:24:01 +00:00
Kaylee Lubick
96fe3e27c7
Change Flutter APIs to use spans (#177272)
Some old APIs are currently guarded by `SK_SUPPORT_UNSPANNED_APIS` and
Skia plans to delete them (for example in this
[CL](https://skia-review.googlesource.com/c/skia/+/1073616)). This
updates Flutter calls to use the new APIs (by wrapping the pointers and
counts together) and removes the define to avoid backsliding.

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2025-10-23 19:08:18 +00:00
gaaclarke
1b85ba6734
Added ahem license (#177423)
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2025-10-23 02:42:24 +00:00
Jason Simmons
280f34408f
Roll reclient to version 185 (#177293)
* The reclient bootstrap shutdown command now requires the config file
flag.
* The reproxystatus command must be run before stopping the reproxy in
order to access RBE metrics.
2025-10-22 14:10:32 +00:00
Jason Simmons
3f76120031
Move the Fuchsia SDK to //third_party/fuchsia-sdk (#177118)
The //third_party/fuchsia-sdk path is expected by the build scripts for
other packages in the Chromium tree such as Abseil.
2025-10-20 22:37:01 +00:00
Jason Simmons
c56b18f3a4
Roll Dart SDK from 2cd2106f2cef to 913c2ae1b367 (2 revisions) (#177258)
Includes an update for changes to the analyzer API.

https://dart.googlesource.com/sdk.git/+log/2cd2106f2cef..913c2ae1b367

2025-10-20 dart-internal-merge@dart-ci-internal.iam.gserviceaccount.com
Version 3.11.0-36.0.dev 2025-10-18
dart-internal-merge@dart-ci-internal.iam.gserviceaccount.com Version
3.11.0-35.0.dev

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/dart-sdk-flutter
Please CC codefu@google.com,dart-vm-team@google.com on the revert to
ensure that a human is aware of the problem.

To file a bug in Flutter:
https://github.com/flutter/flutter/issues/new/choose

To report a problem with the AutoRoller itself, please file a bug:
https://issues.skia.org/issues/new?component=1389291&template=1850622

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

Co-authored-by: engine-flutter-autoroll <engine-flutter-autoroll@skia.org>
2025-10-20 18:01:12 +00:00
Jason Simmons
55712c460f
Roll ANGLE to a branch based on d9fa255a5c22 (#176747)
See https://github.com/flutter/flutter/issues/174665
2025-10-14 16:15:12 +00:00
chunhtai
f86835076b
Adds dart ui API for setting application level locale (#175100)
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part of https://github.com/flutter/flutter/issues/99600

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2025-09-30 23:42:02 +00:00
gaaclarke
e929999892
Removes NOTICES from licenses input (#174967)
fixes https://github.com/flutter/flutter/issues/174996

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2025-09-18 02:48:21 +00:00
John "codefu" McDole
e068a3e6c4
chore: move engine docs out of engine/ and into docs/ (#175195)
Moving docs to be co-located with other docs + updating links. This has
the benefit of not including docs in engine content hash semantics.
2025-09-16 18:19:50 +00:00
jesswrd
5ecb23afdb
Update NDK to The Latest Stable (#175365)
Updated ndk to `28.2.13676358`. Android ndk `r28` is required to
automatically compile to 16KB page sizes
[here](https://developer.android.com/guide/practices/page-sizes#compile-r28).
Otherwise extra configurations and flags are required.

Have to update the configs in engine first. This is part 1.

Addresses https://github.com/flutter/flutter/issues/175022

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2025-09-16 16:49:11 +00:00
Robert Ancell
cbac57a245
Add a gn --ccache argument (#174621)
This enables the use of ccache on Linux and Mac systems.

---------

Co-authored-by: Loïc Sharma <737941+loic-sharma@users.noreply.github.com>
2025-09-15 22:12:20 +00:00
gaaclarke
fd10d21948
deletes the old license checker. (#174719)
This has been replaced by `//engine/src/flutter/tools/licenses_cpp`

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2025-09-05 16:59:27 +00:00
Chinmay Garde
c6f2de7aba
Build engine TUs with C++20. (#174471)
The changes:

* Creating a bit-mask with different enum values is now a warning. Fixed
offending instances.
* `char8_t` is a different type. Fixed those instances.
* Disabling modules in Objective-C requires bypassing the driver.
* Aggregate initialization fails when there are other constructors for
structs. Added explicit constructors.
* `gn format` doesn't seem to be run on erstwhile buildroot GN files.
Fixes the formatting. But can back this out since it is technically
unrelated to C++20.
2025-09-02 18:31:21 +00:00
Kostia Sokolovskyi
23e65c0b49
Fix some issues in engine-tool README. (#174512)
- Fixes broken `Note` alert
https://github.com/flutter/flutter/blob/master/engine/src/flutter/tools/engine_tool/README.md#running-a-flutter-app-with-a-local-engine-build
- Fixes a couple of typos

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[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
2025-08-28 21:31:55 +00:00
Mouad Debbar
b8cd9aff20
[WebParagraph] More plumbing towards making it usable in Flutter apps (#174587)
- Introduce a `WebFontCollection`
([copied](a488d104f2/engine/src/flutter/lib/web_ui/lib/src/engine/text/font_collection.dart)
from the HTML renderer with minor tweaks).
- Teach `CkCanvas.drawParagraph` how to draw a `WebParagraph`.
- Remove several text-related features from CanvasKit/Skia that we don't
need anymore.

Part of https://github.com/flutter/flutter/issues/172561

---------

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
2025-08-28 18:11:28 +00:00