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Add OciVariantGraph typealias and move to own file
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src/main/kotlin/io/github/sgtsilvio/gradle/oci/internal/resolution/OciImageSpecResolution.kt
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src/main/kotlin/io/github/sgtsilvio/gradle/oci/internal/resolution/OciVariantGraph.kt
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,83 @@ | ||
| package io.github.sgtsilvio.gradle.oci.internal.resolution | ||
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| import io.github.sgtsilvio.gradle.oci.attributes.OCI_IMAGE_INDEX_PLATFORM_ATTRIBUTE | ||
| import io.github.sgtsilvio.gradle.oci.attributes.PLATFORM_ATTRIBUTE | ||
| import io.github.sgtsilvio.gradle.oci.internal.gradle.VariantSelector | ||
| import io.github.sgtsilvio.gradle.oci.internal.gradle.toVariantSelector | ||
| import io.github.sgtsilvio.gradle.oci.platform.Platform | ||
| import io.github.sgtsilvio.gradle.oci.platform.toPlatform | ||
| import org.gradle.api.artifacts.result.ResolvedComponentResult | ||
| import org.gradle.api.artifacts.result.ResolvedDependencyResult | ||
| import org.gradle.api.artifacts.result.ResolvedVariantResult | ||
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| internal typealias OciVariantGraph = List<OciVariantGraphRoot> | ||
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| internal class OciVariantGraphRoot(val node: OciVariantGraphNode, val variantSelectors: Set<VariantSelector>) | ||
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| internal class OciVariantGraphNode( | ||
| val variant: ResolvedVariantResult, | ||
| val platformToDependencies: Map<Platform?, List<OciVariantGraphNode>>, | ||
| val supportedPlatforms: PlatformSet, | ||
| ) | ||
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| internal fun resolveOciVariantGraph(rootComponent: ResolvedComponentResult): OciVariantGraph { | ||
| // the first variant is the resolvable configuration, but only if it declares at least one dependency | ||
| val rootVariant = rootComponent.variants.firstOrNull() ?: return emptyList() | ||
| val variantToNode = HashMap<ResolvedVariantResult, OciVariantGraphNode?>() | ||
| // rootNodesToDependencySelectors is linked to preserve the dependency order | ||
| val rootNodesToSelectors = LinkedHashMap<OciVariantGraphNode, HashSet<VariantSelector>>() | ||
| for (dependency in rootComponent.getDependenciesForVariant(rootVariant)) { | ||
| if (dependency.isConstraint) continue | ||
| if (dependency !is ResolvedDependencyResult) throw ResolutionException() | ||
| val node = resolveOciVariantGraphNode(dependency.selected, dependency.resolvedVariant, variantToNode) | ||
| rootNodesToSelectors.getOrPut(node) { HashSet() } += dependency.requested.toVariantSelector() | ||
| } | ||
| return rootNodesToSelectors.map { (node, selectors) -> OciVariantGraphRoot(node, selectors) } | ||
| } | ||
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| private fun resolveOciVariantGraphNode( | ||
| component: ResolvedComponentResult, | ||
| variant: ResolvedVariantResult, | ||
| variantToNode: HashMap<ResolvedVariantResult, OciVariantGraphNode?>, | ||
| ): OciVariantGraphNode { | ||
| if (variant in variantToNode) { | ||
| return variantToNode[variant] ?: throw IllegalStateException("cycle in dependencies graph") | ||
| } | ||
| variantToNode[variant] = null | ||
| // platformToDependenciesAndSupportedPlatforms is linked to preserve the platform order | ||
| val platformToDependenciesAndSupportedPlatforms = | ||
| LinkedHashMap<Platform?, Pair<ArrayList<OciVariantGraphNode>, PlatformSet>>() | ||
| val platforms = variant.attributes.getAttribute(PLATFORM_ATTRIBUTE)?.decodePlatforms() ?: setOf(null) | ||
| for (platform in platforms) { | ||
| val supportedPlatforms = if (platform == null) PlatformSet(true) else PlatformSet(platform) | ||
| platformToDependenciesAndSupportedPlatforms[platform] = Pair(ArrayList(), supportedPlatforms) | ||
| } | ||
| for (dependency in component.getDependenciesForVariant(variant)) { | ||
| if (dependency.isConstraint) continue | ||
| if (dependency !is ResolvedDependencyResult) throw ResolutionException() | ||
| val dependencyPlatforms = | ||
| dependency.requested.attributes.getAttribute(OCI_IMAGE_INDEX_PLATFORM_ATTRIBUTE)?.decodePlatforms() | ||
| ?: platforms | ||
| val node = resolveOciVariantGraphNode(dependency.selected, dependency.resolvedVariant, variantToNode) | ||
| for (dependencyPlatform in dependencyPlatforms) { | ||
| val (dependencies, supportedPlatforms) = platformToDependenciesAndSupportedPlatforms[dependencyPlatform] | ||
| ?: throw IllegalStateException("dependency can not be defined for more platforms than component") // TODO message | ||
| dependencies += node | ||
| supportedPlatforms.intersect(node.supportedPlatforms) | ||
| } | ||
| } | ||
| // platformToDependencies is linked to preserve the platform order | ||
| val platformToDependencies = LinkedHashMap<Platform?, List<OciVariantGraphNode>>() | ||
| val platformSet = PlatformSet(false) | ||
| for ((platform, dependenciesAndSupportedPlatforms) in platformToDependenciesAndSupportedPlatforms) { | ||
| val (dependencies, supportedPlatforms) = dependenciesAndSupportedPlatforms | ||
| platformToDependencies[platform] = dependencies | ||
| platformSet.union(supportedPlatforms) | ||
| } | ||
| val node = OciVariantGraphNode(variant, platformToDependencies, platformSet) | ||
| variantToNode[variant] = node | ||
| return node | ||
| } | ||
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| // return value is linked to preserve the platform order | ||
| private fun String.decodePlatforms() = split(';').mapTo(LinkedHashSet()) { it.toPlatform() } |