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PrecompiledScriptDependenciesResolver.kt
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PrecompiledScriptDependenciesResolver.kt
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/*
* Copyright 2018 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.gradle.kotlin.dsl.precompile
import org.gradle.internal.hash.Hashing
import org.gradle.kotlin.dsl.resolver.KotlinBuildScriptDependencies
import org.gradle.util.internal.TextUtil.convertLineSeparatorsToUnix
import java.util.concurrent.Future
import kotlin.script.dependencies.Environment
import kotlin.script.dependencies.KotlinScriptExternalDependencies
import kotlin.script.dependencies.PseudoFuture
import kotlin.script.dependencies.ScriptContents
import kotlin.script.dependencies.ScriptDependenciesResolver
class PrecompiledScriptDependenciesResolver : ScriptDependenciesResolver {
companion object {
fun hashOf(charSequence: CharSequence) =
hashOfNormalisedString(convertLineSeparatorsToUnix(charSequence.toString()))
fun hashOfNormalisedString(charSequence: CharSequence) =
Hashing.hashString(charSequence).toString()
/**
* **Optimisation note**: assumes [scriptText] contains only `\n` line separators as any script text
* coming from the Kotlin compiler already should.
*/
fun implicitImportsForScript(scriptText: CharSequence, environment: Environment?) =
implicitImportsFrom(environment) + precompiledScriptPluginImportsFrom(environment, scriptText)
private
fun implicitImportsFrom(environment: Environment?) =
environment.stringList(EnvironmentProperties.kotlinDslImplicitImports)
private
fun precompiledScriptPluginImportsFrom(environment: Environment?, scriptText: CharSequence): List<String> =
environment.stringList(hashOfNormalisedString(scriptText))
private
fun Environment?.stringList(key: String) =
string(key)?.split(':')
?: emptyList()
private
fun Environment?.string(key: String) =
this?.get(key) as? String
}
object EnvironmentProperties {
const val kotlinDslImplicitImports = "kotlinDslImplicitImports"
const val projectRoot = "projectRoot"
}
override fun resolve(
script: ScriptContents,
environment: Environment?,
report: (ScriptDependenciesResolver.ReportSeverity, String, ScriptContents.Position?) -> Unit,
previousDependencies: KotlinScriptExternalDependencies?
): Future<KotlinScriptExternalDependencies?> =
PseudoFuture(
KotlinBuildScriptDependencies(
classpath = emptyList(),
sources = emptyList(),
imports = implicitImportsForScript(script.text!!, environment),
javaHome = null,
classPathBlocksHash = null
)
)
}