Reland: Improve file structure of linter files. There is much code in pkg/analyzer/lib/src/lint which is only used by _tests_ and _tools_ in the linter package. This CL attempts to tidy up the separation of linter lib code and non-lib code by moving some files, and moving some source elements, which are only used in tests, or in tools. I originally dug into this because I saw `LinterOptions` has a public late field (dangerous): `late file_system.ResourceProvider resourceProvider;` It turns out this field is only initialized in tests and tools, and then it's read by multiple methods, and it just so happens those methods are only called during tests or in tools. Summary of changes: * Mark LintDriver and DartLinter classes as only used for linter tools and tests. * Remove CamelCaseString class. * Mark `DartLinter.lintPubspecSource` as `@visibleForTesting`. * LinterOptions: mark `enabledLints` and `analysisOptions` final, and remove `resourceProvider`. * Remove SourceLinter; it was only used in a few `engine_test.dart` tests in linter, but all uses could be replaced with DartLinter. * Remove linter's `bin/linter.dart`; it is not meant to be used as any sort of user entrypoint. The main method is moved to `cli.dart`. * Move linter's `lib/src/cli.dart` to `tool/cli.dart`. * analyzer's top-level function `lintFiles`, classes ErrorWatchingSink and FileGlobFilter are moved to linter's tool/ directory. * Delete the engine_test.dart tests which only validate basics of linter's old entrypoint. This reverts commit d1bc88de8fa86000e10a598f4cf80dd02ac82917. Change-Id: I1063aa72c640ad8ab62f76bf89f665cb8b9952dc Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/334645 Reviewed-by: Phil Quitslund <pquitslund@google.com> Reviewed-by: Samuel Rawlins <srawlins@google.com> Commit-Queue: Samuel Rawlins <srawlins@google.com> https://dart.googlesource.com/sdk/+/f2a001d2fde12c5460fe858d50c1b52af52e9d4b
Monorepo is:
With depot_tools installed and on your path, create a directory for your monorepo checkout and run these commands to create a gclient solution in that directory:
mkdir monorepo cd monorepo gclient config --unmanaged https://dart.googlesource.com/monorepo gclient sync -D
This gives you a checkout in the monorepo directory that contains:
monorepo/ DEPS - the DEPS used for this gclient checkout commits.json - the pinned commits for Dart, flutter/engine, and flutter/flutter tools/ - scripts used to create monorepo DEPS engine/src/ - the flutter/buildroot repo flutter/ - the flutter/engine repo out/ - the build directory, where Flutter engine builds are created third_party/ - Flutter dependencies checked out by DEPS dart/ - the Dart SDK checkout. third_party - Dart dependencies, also used by Flutter flutter/ - the flutter/flutter repo
Flutter's instructions for building the engine are at Compiling the engine
They can be followed closely, with a few changes:
goma_ctl ensure_start is sufficient.Example build commands that work on linux:
MONOREPO_PATH=$PWD if [[ ! $PATH =~ (^|:)$MONOREPO_PATH/flutter/bin(:|$) ]]; then PATH=$MONOREPO_PATH/flutter/bin:$PATH fi export GOMA_DIR=$(dirname $(command -v gclient))/.cipd_bin goma_ctl ensure_start pushd engine/src flutter/tools/gn --goma --no-prebuilt-dart-sdk --unoptimized --full-dart-sdk autoninja -C out/host_debug_unopt popd
The Flutter commands used to build and run apps will use the locally built Flutter engine and Dart SDK, instead of the one downloaded by the Flutter tool, if the --local-engine option is provided.
For example, to build and run the Flutter spinning square sample on the web platform,
MONOREPO_PATH=$PWD cd flutter/examples/layers flutter --local-engine=host_debug_unopt \ -d chrome run widgets/spinning_square.dart cd $MONOREPO_PATH
To build for desktop, specify the desktop platform device in flutter run as -d macos or -d linux or -d windows. You may also need to run the command
flutter create --platforms=windows,macos,linux
on existing apps, such as sample apps. New apps created with flutter create already include these support files. Details of desktop support are at Desktop Support for Flutter
Tests in the Flutter source tree can be run with the flutter test command, run in the directory of a package containing tests. For example:
MONOREPO_PATH=$PWD cd flutter/packages/flutter flutter test --local-engine=host_debug_unopt cd $MONOREPO_PATH
Please file an issue or email the dart-engprod team with any problems with or questions about using monorepo.
We will update this documentation to address them.
flutter commands may download the engine and Dart SDK files for the configured channel, even though they will be using the local engine and its SDK.gclient sync needs to be run in an administrator session, because some installed dependencies create symlinks.