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John "codefu" McDole ff983d3598
feat: start using the content aware hash for downloading artifacts (#172552) 
reland of https://github.com/flutter/flutter/pull/171927
towards https://github.com/flutter/flutter/issues/171790

Use the content aware hash when downloading engine artifacts. These are
currently produced when changes to DEPs, engine/, or the release file
are changed in a not-seen-before way.

We can eventually remove engine.version being tracked in release
branches as an optimization.

FLUTTER_PREBUILT_ENGINE_VERSION will stay for overriding the
engine.version for testing. Though Cocoon does not need to actually set
it for framework only PRs anymore.

fxies post submit tests for content_hash download:
SHARD=framework_tests SUBSHARD=misc dart --enable-asserts
dev/bots/test.dart
SHARD=tool_host_cross_arch_tests dart --enable-asserts
dev/bots/test.dart

```
  ╔═╡ERROR https://github.com/flutter/flutter/pull/1╞════════════════════════════════════════════════════════════════════
  ║ Expected "Flutter Engine Version: 45b085ab2118f30441ae6e2daab4b8eb3e4a063c", but found "Flutter Engine Version: 407c051ec9".
  ╚═══════════════════════════════════════════════════════════════════════════════
```

```
  Expected: contains '45b085ab2118f30441ae6e2daab4b8eb3e4a063c'
     Which: does not contain '45b085ab2118f30441ae6e2daab4b8eb3e4a063c'
```
2025-07-22 17:35:26 +00:00
..
about
Fix broken markdown link to Engine repository in Project-teams.md (#171267)
2025-06-27 13:38:17 +00:00
contributing
Add CLA note to tree hygiene (#172475)
2025-07-21 17:53:10 +00:00
ecosystem
Add OS version support section to plugin docs (#172316)
2025-07-18 12:09:22 +00:00
examples
[wiki migration] Leftover wiki pages and links (#148989)
2024-05-28 15:12:10 +00:00
infra
Remove stale references to Release-process.md and conductor (#171046)
2025-06-24 22:28:04 +00:00
libraries/material
[wiki migration] Framework team pages (#148721)
2024-05-20 23:40:35 +00:00
platforms
Fix broken VD link in Android-Platform-Views.md (#168026)
2025-04-30 00:07:06 +00:00
postmortems
Add public postmortem of the 3.32.3 release. (#171904)
2025-07-09 21:22:47 +00:00
releases
Remove stale references to Release-process.md and conductor (#171046)
2025-06-24 22:28:04 +00:00
roadmap
Update roadmap email (#166838)
2025-04-09 14:33:25 +00:00
tool
feat: start using the content aware hash for downloading artifacts (#172552)
2025-07-22 17:35:26 +00:00
triage
Remove stale references to Release-process.md and conductor (#171046)
2025-06-24 22:28:04 +00:00
wiki_archive
Migrate in-comment links of the flutter/engine repository to the flutter/flutter repository (#166790)
2025-04-10 15:58:23 +00:00
Flutter-Self-Service-Index.md
Remove flutter engine repo links (#167481)
2025-04-24 15:15:21 +00:00
In-case-of-emergency.md
Misc docs cleanup and fixes (#155501)
2024-09-24 20:03:08 +00:00
README.md
Fix link to engine docs (#167346)
2025-04-17 21:35:39 +00:00

README.md

This wiki is primarily aimed at engineers building or making contributions to Flutter.

If you are new to Flutter, then you will find more general information on the Flutter project, including tutorials and samples, on our website at flutter.dev. For specific information about Flutter's APIs, consider our API reference which can be found at the api.flutter.dev.

If you want to know what we're likely to do in the future, our roadmap may be of interest.

If you intend to contribute to Flutter, welcome! You are encouraged to start with our contributor guide, which helps onboard new team members. It points to the most relevant pages on this wiki. You are also invited to join our Discord server.

Index of notable sections