fix(deps): update metro to v0.8.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
dev.zacsweers.metro:dev.zacsweers.metro.gradle.plugin	0.7.7 -> 0.8.0
dev.zacsweers.metro:runtime	0.7.7 -> 0.8.0

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Release Notes

ZacSweers/metro (dev.zacsweers.metro:dev.zacsweers.metro.gradle.plugin)

v0.8.0

Compare Source

2025-12-01

• New: New dev.zacsweers.metro:metrox-android artifact for Android AppComponentFactory support. See the docs for more information.

• New: New dev.zacsweers.metro:metrox-viewmodel and metrox-viewmodel-compose artifacts for AndroidX ViewModel support. See the docs (compose docs ) for more information.

  • Should I use this?

    • Well, that's up to you! This artifact is mostly for projects coming from heavy use of more vanilla Android architecture components or hiltViewModel() use. Modern Android apps should use higher level architectures like Circuit* (Disclosure: I am one of the authors of Circuit, and I'm a big fan of it!), Voyager, etc. that abstract away ViewModel management.

• New: Add generateMetroGraphMetadata Gradle task that writes a merged JSON dump of all binding graphs in the project. This can be chained from the GenerateGraphMetadataTask for further processing.

• New: Add analyzeMetroGraph Gradle task that performs comprehensive graph analysis including fan-in/fan-out, betweenness centrality, dominator analysis, and longest path detection.

• New: Add generateMetroGraphHtml Gradle task that generates interactive HTML visualizations of dependency graphs using ECharts. Features include force/circular layouts, filtering by package/scope/synthetic bindings, metrics heatmaps, and longest path highlighting. See the graph analysis docs for more information.

• New: Add MetroArtifacts Gradle API for accessing Metro reports and graph metadata directories.

• New: Add supportedHintContributionPlatforms Gradle DSL property to manually override supported hint contribution generation on different platforms. By default this computes default supported platforms based on the platform and Kotlin tooling version.

• API Change: Rename generateJvmContributionHintsInFir Gradle DSL property to generateContributionHintsInFir. Note this property/mode still doesn't really work and is highly experimental at the moment.

• Behavior Change: Add @DelicateMetroGradleApi annotations to relevant Gradle extension APIs.

• Behavior Change: The generateContributionHints property now computes defaults per platform and per Kotlin compilation as a convention and can be overridden.

• Behavior Change: All non-final classes with member injections or that extend classes with member injections must now be annotated with @HasMemberInjections. This is enforced with a new diagnostic check.

• Enhancement: Lazily validate multibindings. Previously, multibindings were validated eagerly even if they were unused in a graph.

• Enhancement: Report all duplicate bindings errors during graph construction rather than failing at first.

• Enhancement: Support FirFunctionCall evaluation in annotation arguments during FIR.

• Enhancement: Order before the Compose compiler on Kotlin 2.3.0+.

• Enhancement: Only print Metro Gradle version configuration mismatch warnings once rather than per-compilation.

• Enhancement: Report Metro Gradle configuration issues to Gradle's Problems API.

  • While this is nice for the IDE integration/Develocity integration, it's wholly hidden away from CLI users. So, Metro will still print these warnings to console too.

• Fix: Support member injection of classes that have no member injections but do extend superclasses with member injections.

• Fix: Catch more IrErrorType error types cases and report context/advice where possible.

• Fix: Dedupe binding containers contributed to both parent and child graphs.

• Fix: Fix support for Anvil's exclude argument in dependency graph annotations when Anvil interop is enabled.

• Fix: Fix colliding reports destinations in KMP projects by disambiguating with the target path as another subdir indirection.

• Fix: Fix qualifiers not being propagated to generated MembersInjector classes for multibindings.

• Fix: Remove misleading "doesn't appear to be visible to this compilation" hint, as this hint was misreporting.

• Fix: Fix not reserving properties multibinding contributors that are behind aliases.

• Fix: Stub hint function bodies if FIR-generated.

• Fix: Hide FIR-generated hint functions.

• Fix: Full support injected Java fields from Dagger-processed Java supertypes.

• Fix: Use correct type args for empty map provider return types.

• Fix: Add Dagger's internal SetFactory, MapFactory and MapProviderFactory to known Dagger ClassIds in Provider interop.

• Removed: Removed deprecated enableScopedInjectClassHints Gradle DSL property.

• Removed: Removed deprecated enableStrictValidation Gradle DSL property.

• Removed: Removed deprecated contributesGraphExtension Gradle DSL property.

• Removed: Removed deprecated contributesGraphExtensionFactory Gradle DSL property.

• Removed: Removed deprecated optionalDependencyBehavior Gradle DSL property.

• Removed: Removed deprecated OptionalDependencyBehavior Gradle plugin class.

• Removed: Removed deprecated includeAnvil Gradle DSL function.

• Removed: Removed deprecated ContributesGraphExtension annotation.

• Removed: Removed deprecated OptionalDependency annotation.

Special thanks to the following contributors for contributing to this release!

• @​yschimke
• @​jonapoul
• @​kevinguitar
• @​jonamireh
• @​zsmb13
• @​bjdodson
• @​consp1racy

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