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'
```
<!-- start_original_pr_link -->
Reverts: flutter/flutter#171927
<!-- end_original_pr_link -->
<!-- start_initiating_author -->
Initiated by: matanlurey
<!-- end_initiating_author -->
<!-- start_revert_reason -->
Reason for reverting: Broke the tree, due to naughty tests but too
intensive to fix forward.
<!-- end_revert_reason -->
<!-- start_original_pr_author -->
Original PR Author: jtmcdole
<!-- end_original_pr_author -->
<!-- start_reviewers -->
Reviewed By: {matanlurey, chingjun}
<!-- end_reviewers -->
<!-- start_revert_body -->
This change reverts the following previous change:
towards #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.
<!-- end_revert_body -->
Co-authored-by: auto-submit[bot] <flutter-engprod-team@google.com>
towards #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.
Rolls forward https://github.com/flutter/flutter/pull/166717.
Does not copy the `README` or `DEPS` files, and instead uses synthetic
scratch files.
These files can change, so we can't possibly know how to hash them
consistently.
<!-- start_original_pr_link -->
Reverts: flutter/flutter#166717
<!-- end_original_pr_link -->
<!-- start_initiating_author -->
Initiated by: matanlurey
<!-- end_initiating_author -->
<!-- start_revert_reason -->
Reason for reverting: Broke tree on
[postsubmit](https://logs.chromium.org/logs/flutter/buildbucket/cr-buildbucket/8718108088961866849/+/u/test:_run_suite_safari-dart2js-canvaskit-engine/stdout)
<!-- end_revert_reason -->
<!-- start_original_pr_author -->
Original PR Author: jtmcdole
<!-- end_original_pr_author -->
<!-- start_reviewers -->
Reviewed By: {matanlurey}
<!-- end_reviewers -->
<!-- start_revert_body -->
This change reverts the following previous change:
1. Calculate the hash in only two places: `content_aware_hash.{ps1|sh}`
2. Call this from the workflow
3. Eventually call this from `update_engine_version.{ps1|sh}`
The files of import:
* `DEPS`: tracks third party dependencies related to building the engine
* `engine`: all the code in the engine folder
* `bin/internal/content_aware_hash.ps1`: script for calculating the hash
on windows
* `bin/internal/content_aware_hash.sh`: script for calculating the hash
on mac/linux
* `.github/workflows/content-aware-hash.yml`: github action for CI/CD
hashing
Tested on windows and mac:
```shell
PS C:\src\flutter> C:\src\flutter\bin\internal\content_aware_hash.ps1
c24231e276e0719738e175e0622e040ad21a7012
```
```shell
❯ ~/src/flutter/bin/internal/content_aware_hash.sh
c24231e276e0719738e175e0622e040ad21a7012
```
<!-- end_revert_body -->
Co-authored-by: auto-submit[bot] <flutter-engprod-team@google.com>
1. Calculate the hash in only two places: `content_aware_hash.{ps1|sh}`
2. Call this from the workflow
3. Eventually call this from `update_engine_version.{ps1|sh}`
The files of import:
* `DEPS`: tracks third party dependencies related to building the engine
* `engine`: all the code in the engine folder
* `bin/internal/content_aware_hash.ps1`: script for calculating the hash
on windows
* `bin/internal/content_aware_hash.sh`: script for calculating the hash
on mac/linux
* `.github/workflows/content-aware-hash.yml`: github action for CI/CD
hashing
Tested on windows and mac:
```shell
PS C:\src\flutter> C:\src\flutter\bin\internal\content_aware_hash.ps1
c24231e276e0719738e175e0622e040ad21a7012
```
```shell
❯ ~/src/flutter/bin/internal/content_aware_hash.sh
c24231e276e0719738e175e0622e040ad21a7012
```
