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eb3891b21f
* Change license header from doc to block comment * Apply fixed license header throughout
59 lines
1.9 KiB
Kotlin
59 lines
1.9 KiB
Kotlin
/*
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* Copyright © 2024 Apple Inc. and the Pkl project authors. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import org.gradle.api.DefaultTask
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import org.gradle.api.file.RegularFileProperty
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import org.gradle.api.provider.ListProperty
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import org.gradle.api.tasks.Input
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import org.gradle.api.tasks.InputFile
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import org.gradle.api.tasks.OutputFile
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import org.gradle.api.tasks.TaskAction
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/**
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* Builds a self-contained Pkl CLI Jar that is directly executable on *nix and executable with `java
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* -jar` on Windows.
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*
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* For direct execution, the `java` command must be on the PATH.
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*
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* https://skife.org/java/unix/2011/06/20/really_executable_jars.html
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*/
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abstract class ExecutableJar : DefaultTask() {
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@get:InputFile abstract val inJar: RegularFileProperty
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@get:OutputFile abstract val outJar: RegularFileProperty
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@get:Input abstract val jvmArgs: ListProperty<String>
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@TaskAction
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fun buildJar() {
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val inFile = inJar.get().asFile
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val outFile = outJar.get().asFile
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val escapedJvmArgs = jvmArgs.get().joinToString(separator = " ") { "\"$it\"" }
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val startScript =
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"""
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#!/bin/sh
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exec java $escapedJvmArgs -jar $0 "$@"
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"""
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.trimIndent() + "\n\n\n"
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outFile.outputStream().use { outStream ->
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startScript.byteInputStream().use { it.copyTo(outStream) }
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inFile.inputStream().use { it.copyTo(outStream) }
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}
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// chmod a+x
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outFile.setExecutable(true, false)
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}
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}
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