arrow.meta.MetaCliProcessor.kt Maven / Gradle / Ivy

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Functional companion to Kotlin's Standard Library

There is a newer version: 1.6.3-alpha.2

package arrow.meta

import org.jetbrains.kotlin.compiler.plugin.AbstractCliOption
import org.jetbrains.kotlin.compiler.plugin.CliOption
import org.jetbrains.kotlin.compiler.plugin.CliOptionProcessingException
import org.jetbrains.kotlin.compiler.plugin.CommandLineProcessor
import org.jetbrains.kotlin.config.CompilerConfiguration
import org.jetbrains.kotlin.config.CompilerConfigurationKey

/** CLI bootstrap service */
object ArrowMetaConfigurationKeys {
  val GENERATED_SRC_OUTPUT_DIR: CompilerConfigurationKey> =
    CompilerConfigurationKey>("directory to locate sources")
  val BASE_DIR: CompilerConfigurationKey> =
    CompilerConfigurationKey>("base directory")
}

abstract class MetaCliProcessor(private val metaPluginId: String) : CommandLineProcessor {

  companion object {
    val ARROW_META_GENERATED_SRC_OUTPUT_DIR =
      CliOption(
        "generatedSrcOutputDir",
        "arrow-meta-gen-src-output-dir",
        "Directory to locate generated sources",
        required = false,
        allowMultipleOccurrences = false
      )
    val ARROW_META_BASE_DIR =
      CliOption(
        "baseDir",
        "arrow-meta-base-dir",
        "Base directory from where the plugin is run",
        required = false,
        allowMultipleOccurrences = false
      )
  }

  /** The Arrow Meta Compiler Plugin Id */
  override val pluginId: String = "arrow.meta.plugin.compiler.$metaPluginId"

  override val pluginOptions: Collection =
    listOf(ARROW_META_GENERATED_SRC_OUTPUT_DIR, ARROW_META_BASE_DIR)

  override fun processOption(
    option: AbstractCliOption,
    value: String,
    configuration: CompilerConfiguration
  ) =
    when (option.optionName) {
      "generatedSrcOutputDir" ->
        configuration.add(ArrowMetaConfigurationKeys.GENERATED_SRC_OUTPUT_DIR, value)
      "baseDir" -> configuration.add(ArrowMetaConfigurationKeys.BASE_DIR, value)
      else -> throw CliOptionProcessingException("Unknown option: ${option.optionName}")
    }
}