1 /*
<lambda>null2 * Copyright 2022 Google LLC
3 * Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package com.google.devtools.ksp
18
19 import org.gradle.api.Project
20 import org.gradle.api.artifacts.Configuration
21 import org.gradle.api.tasks.JavaExec
22
23 val API_BASE_FILE="api.base"
24
25 /**
26 * Adapted from ktlint
27 */
28 fun Project.configureMetalava() {
29 val checkProvider = tasks.register("checkApi", JavaExec::class.java) { task ->
30 task.configureCommonMetalavaArgs(this@configureMetalava)
31 task.description = "Check API compatibility."
32 task.group = "Verification"
33 task.args = listOf("--check-compatibility:api:released", API_BASE_FILE) + task.args!!
34 }
35
36 afterEvaluate {
37 // check task is not available yet, which is why we use afterEvaluate
38 project.tasks.named("check").configure { checkTask ->
39 checkTask.dependsOn(checkProvider)
40 }
41 }
42
43 tasks.register("updateApi", JavaExec::class.java) { task ->
44 task.configureCommonMetalavaArgs(this@configureMetalava)
45 task.description = "Update API base file."
46 task.group = "formatting"
47 task.args = listOf("--api", API_BASE_FILE) + task.args!!
48 }
49 }
50
51 /**
52 * Configures common Metalava parameters
53 */
JavaExecnull54 private fun JavaExec.configureCommonMetalavaArgs(
55 project: Project
56 ) {
57 val jdkHome = org.gradle.internal.jvm.Jvm.current().getJavaHome().absolutePath
58 val compileClasspath = project.getCompileClasspath()
59 val apiFiles = project.fileTree(project.projectDir).also {
60 it.include("**/*.kt")
61 it.include("**/*.java")
62 it.exclude("**/testData/**")
63 it.exclude("**/build/**")
64 it.exclude("**/.*/**")
65 }
66 inputs.files(apiFiles)
67 classpath = project.getMetalavaConfiguration()
68 mainClass.set("com.android.tools.metalava.Driver")
69 args = listOf(
70 "--jdk-home", jdkHome,
71 "--classpath", compileClasspath,
72 "--source-files",
73 ) + apiFiles.files.map { it.absolutePath }
74 }
75
Projectnull76 private fun Project.getCompileClasspath(): String =
77 configurations.findByName("compileClasspath")!!.files.map { it.absolutePath }.joinToString(":")
78
Projectnull79 private fun Project.getMetalavaConfiguration(): Configuration {
80 return configurations.findByName("metalava") ?: configurations.create("metalava") {
81 val dependency = dependencies.create("com.android.tools.metalava:metalava:1.0.0-alpha04")
82 it.dependencies.add(dependency)
83 }
84 }
85