build_runner_core

• Use build 4.0.0.

• Move runBuilder to here from package:build. Please note that all of build_runner_core is intended to be internal to build_runner: the supported ways to run builders are build_runner on the command line and build_test in tests. If you need ongoing support for a different way to run builders please get in touch at https://github.com/dart-lang/build/discussions.
• Similarly, move runPostProcessBuilder to here from package:build.
• Use build 3.1.0.
• Use build_runner 2.7.1.
• Remove overrideGeneratedOutputDirectory, pubBinary.

• Add support for build.yaml triggers. See build_runner 2.7.0 for usage.
• Remove interactive prompts for whether to delete files.
• Ignore -d flag: always delete files as if -d was passed.
• Bug fix: delete transitive generated outputs as well as direct generated outputs. So, a generated file now gets deleted if its input was a generated file that is no longer output.
• Bug fix: fix crash creating a merged output dir with a file called lib.

• Use build 3.0.1.
• Allow analyzer 8.0.0.

• Removed unused dev_deps: test_process.
• Bug fix: fix incremental build after build with import of missing package.
• Testing: read build configs using AssetReader so they're easier to test.
• Use build 3.0.0.
• Use build_resolvers 3.0.0.

• Removed unused dev_deps: test_process.
• Bug fix: fix incremental build after build with import of missing package.
• Testing: read build configs using AssetReader so they're easier to test.

• Use build 3.0.0-dev.1.
• Use build_resolvers 3.0.0-dev.1.

• Bug fix: fix incremental build when previous build had package: import of a missing dep or a missing file.

• Bug fix: fix corner case with checked in generated output that could cause a crash.
• Bug fix: during initial build cleanup, really delete files that correspond to hidden generated files.

• More detailed tracking of reads for the benefit of build_test.

• Don't log stack traces for subclasses of Exception.
• Bug fix: don't run builders with multiple outputs once per output.

• Improved performance for large builds. More performance improvements will follow, if your workflow is affected by slow build_runner performance then please consider sharing details at https://github.com/dart-lang/build/discussions.
• Improved logging: show what builders are running and, for long-running builders, where the time is spent.

Breaking changes:

• Breaking: refactor OverridableEnvironment and IOEnvironment into BuildEnvironment
• Breaking: add deleteDirectory to RunnerAssetWriter, make delete return Future<void>, remove deprecated OnDelete.

Versions:

• Bump the min SDK to 3.7.0.
• Use build_test 3.0.0.

Internal changes:

• Fix crash when running on assets ending in a dot.
• Start using `package:build/src/internal.dart'.
• Refactor PathProvidingAssetReader to AssetPathProvider.
• Refactor MultiPackageAssetReader to internal AssetFinder.
• FinalizedReader no longer implements AssetReader.
• Add internal Filesystem that backs AssetReader and AssetWriter implementations.
• Refactor CachingAssetReader to FilesystemCache.
• Refactor BuildCacheReader to GeneratedAssetHider.
• Refactor FileBasedAssetReader and FileBasedAssetWriter to ReaderWriter.
• Move BuildStepImpl to build_runner_core, use SingleStepReader directly.
• Remove BuildCacheWriter, functionality is handled by AssetPathProvider.
• Refactor SingleStepReader to SingleStepReaderWriter, incorporating AssetWriterSpy functionality.
• Add NodeType to AssetNode, remove subtypes. Make mutations explicit.
• Use built_value for AssetNode and related types, and for serialization.
• Add details of what changed and what is built to --verbose logging.
• New change detection algorithm.
• Add reportUnusedAssetsForInput to BuildOptions, to listen for when a builder notifies that an asset is unused.
• Use LibraryCycleGraphLoader to load transitive deps for analysis.
• Track post process builder outputs separately from the main graph Instead of in postProcessAnchor nodes.
• Compute outputs as needed instead of storing them in the asset graph.
• Check build options for changes in the phase setup instead of storing them in the asset graph.
• Refactor invalidation to track current build progress in Build instead of in the asset graph.
• Track resolver dependencies as library cycle graphs.
• Ignore deprecated analyzer API usages.
• Store errors in the asset graph instead of separate files.

• Breaking: Add completeBuild to RunnerAssetWriter, a method expected to be called by the build system at the end of a completed build.
• Add wrapInBatch to obtain a reader/writer pair that will batch writes before flushing them at the end of a build.
• Bump the min sdk to 3.6.0.
• Require analyzer ^6.9.0, allow version 7.x.
• Fix analyzer deprecations.

• Additional fixes for pub workspace repos
• Migrate deprecates uses of whereNotNull() to nonNulls.
• Bump the min sdk to 3.5.0-259.0.dev.

• Support the upcoming pub workspaces feature.
• Bump the min sdk to 3.4.0.
• Remove some unnecessary casts and non-null assertions now that we have private field promotion.

• Bump the min sdk to 3.0.0.
• Add integration_test as a default top level directory for sources.

• Add better error messages for incomplete package configs when creating a package graph.
• Update to build_resolvers 2.4.0 and use the shared analyzer resolvers instance.

• Fix build script invalidation check for custom build scripts from other packages.

• Fix compatibility with package:logging version 1.2.0.

• Raise the minimum SDK constraint to 2.18.
• Optimize BuildStep.packageConfig

• Handle generation of hidden assets in a way consistent with the definition of public assets used in other parts of the build system.

• Backport the fix for package:logging version 1.2.0.

• Add supported platforms to pubspec.

• Expand pubspec description.

• Fix some new lints.
• Fix a bug in the LRU cache.
• Fix a bug when manually deleting outputs of multiple output builders.

• Allow the latest analyzer.

• Fix a bug compilation bug on the 2.14 sdk.

• Drop package:pedantic dependency and replace it with package:lints.

• Support capture groups, a feature introduced in build: 2.1.0.

• Allow analyzer version 2.x.x.

• Migrate to null safety.
• Add an early error if any output extensions overlap with any input extensions to avoid infinite loops.

• Allow build_config 0.4.7

• Update to graphs 1.x.
• Update to build 2.x.
• Update to build_resolvers 2.x.

• Don't count packages in dependency_overrides as immediate dependencies when building package graphs. This allows you to override transitive builder deps without accidentally applying those builders to the root package.

• Allow the latest build_config.

• Update glob to 2.x.

• Allow the null safe pre-release of package_config and watcher.

• Allow the null safe pre-releases of all migrated deps.

• Allow build version 1.6.x.

• Allow build_config version '>=0.4.1 <0.4.6'.
• Allow yaml version '>=2.1.11 <4.0.0'.

• Allow package:json_annotation v4.x.

• Support the latest package:build_config.

• Fix a bug where canRead would throw if the package was unknown, instead of returning false.

• Require the latest build version (1.5.1).
• Support the additional_public_assets option in build configurations.
• Fix a bug where the server would respond with a 500 instead of a 404 for files that don't match any build filters but had previously failed.
• Fix the generated package config to include the full output directory for the root package.

• Fix https://github.com/dart-lang/build/issues/1804.

• Require the latest build version (1.5.x).

• Add back the overrideGeneratedOutputDirectory method.

• Remove some constants and utilities which are implementation details.

• Dart language experiments are now tracked on the asset graph and will invalidate the build if they change.
  • Experiments are enabled for a zone by using the withEnabledExperiments function from package:build/experiments.dart.

• Add a warning if a package is missing some required placholder files, including $package$ and lib/$lib$.
• Reduce chances for changing apparent build phases across machines with a different order of packages from package_config.json.

Breaking changes

• PackageGraph.forPath and PackageGraph.forThisPackage are now static methods which return a Future<PackageGraph> instead of constructors.
• PackageNode now requires a LanguageVersion.

Other changes

• Builds no longer depend on the contents of the package_config.json file, instead they depend only on the language versions inside of it.
  • This should help CI builds that want to share a cache across runs.
• Improve the error message for build.yaml parsing errors, suggesting a clean build if you believe the parse error is incorrect.
• Remove unused dev dependency on package_resolver.

• Don't throw a BuildScriptInvalidated exception on package_config.json updates unless running from snapshot.

• Don't assume the existence of a .dart_tool/package_config.json file when creating output directories.

• Don't fail if there is no .dart_tool/package_config.json file.

• Add the package_config.json file as an internal source, and invalidate builds when it changes.
• Avoid treating AssetId paths as URIs.

• Support the auto_apply_builders target configuration added in build_config version 0.4.2.

• Add the $package$ synthetic placeholder file and update the docs to prefer using only that or lib/$lib$.
• Add the assets directory and $package$ placeholders to the default sources allow list.

• Bug fix: Changing the root package name will no longer cause subsequent builds to fail (Issue #2566).

New Feature

• Allow reading assets created previously by the same BuildStep.

• Add support for trimming builds based on BuildStep.reportUnusedAssets calls. See the build package for more details.
• Include node/** in the default set of sources (when there is no target defined) for the root package.