com.github.jengelman.gradle.plugins.shadow.tasks.DefaultInheritManifest.kt Maven / Gradle / Ivy

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Gradle plugin to create fat/uber JARs, apply file transforms, and relocate packages for applications and libraries. Gradle version of Maven's Shade plugin.

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package com.github.jengelman.gradle.plugins.shadow.tasks

import org.gradle.api.Action
import org.gradle.api.internal.file.FileResolver
import org.gradle.api.java.archives.Manifest
import org.gradle.api.java.archives.internal.DefaultManifest
import org.gradle.api.java.archives.internal.DefaultManifestMergeSpec

public open class DefaultInheritManifest @JvmOverloads constructor(
  private val fileResolver: FileResolver,
  private val internalManifest: DefaultManifest = DefaultManifest(fileResolver),
) : InheritManifest,
  Manifest by internalManifest {
  private val inheritMergeSpecs = mutableListOf()

  override fun inheritFrom(
    vararg inheritPaths: Any,
  ): InheritManifest {
    return inheritFrom(inheritPaths = inheritPaths, action = null)
  }

  override fun inheritFrom(
    vararg inheritPaths: Any,
    action: Action<*>?,
  ): InheritManifest = apply {
    val mergeSpec = DefaultManifestMergeSpec()
    mergeSpec.from(*inheritPaths)
    inheritMergeSpecs.add(mergeSpec)
    @Suppress("UNCHECKED_CAST")
    (action as? Action)?.execute(mergeSpec)
  }

  override fun getEffectiveManifest(): DefaultManifest {
    var base = DefaultManifest(fileResolver)
    inheritMergeSpecs.forEach {
      base = it.merge(base, fileResolver)
    }
    base.from(internalManifest)
    return base.effectiveManifest
  }

  override fun writeTo(path: Any): Manifest = apply {
    effectiveManifest.writeTo(path)
  }
}