Clean gradle build

2020-11-29 21:15:31 +01:00
parent 90701dcdce
commit 909fb482a8
31 changed files with 337 additions and 152 deletions
@@ -0,0 +1,75 @@
+package be.simplenotes
+
+import org.gradle.api.DefaultTask
+import org.gradle.api.GradleException
+import org.gradle.api.tasks.*
+import org.gradle.kotlin.dsl.getByType
+import java.io.File
+import java.lang.ProcessBuilder.Redirect.PIPE
+import java.util.concurrent.TimeUnit
+import kotlin.concurrent.thread
+
+open class PostcssTask : DefaultTask() {
+
+    private val viewsProject = project
+        .parent
+        ?.project(":views")
+        ?: error("Missing :views")
+
+    @get:InputDirectory
+    val templatesDir = viewsProject.extensions
+        .getByType<SourceSetContainer>()
+        .asMap.getOrElse("main") { error("main sources not found") }
+        .allSource.srcDirs
+        .find { it.endsWith("src") }
+        ?: error("kotlin sources not found")
+
+    private val yarnRoot = File(project.rootDir, "css")
+
+    @get:InputDirectory
+    val postCssDir = File(project.rootDir, "css/src")
+
+    @get:InputFiles
+    val postCssConfig = listOf(
+        "tailwind.config.js",
+        "postcss.config.js",
+        "package.json"
+    ).map { File(yarnRoot, it) }
+
+    @get:OutputDirectory
+    val outputRootDir = File(project.buildDir, "generated-resources/css")
+
+    private val cssIndex = File(postCssDir, "styles.pcss")
+
+    private val cssOutput = File(outputRootDir, "static/styles.css")
+    private val manifestOutput = File(outputRootDir, "css-manifest.json")
+
+    private val purgeGlob = "$templatesDir/**/*.kt"
+
+    @TaskAction
+    fun generateCss() {
+        // TODO: auto yarn install ?
+
+        outputRootDir.deleteRecursively()
+
+        ProcessBuilder("yarn", "run", "postcss", "$cssIndex", "--output", "$cssOutput")
+            .apply {
+                environment().let {
+                    it["MANIFEST"] = "$manifestOutput"
+                    it["NODE_ENV"] = "production"
+                    it["PURGE"] = purgeGlob
+                }
+            }
+            .redirectOutput(PIPE)
+            .redirectError(PIPE)
+            .directory(yarnRoot)
+            .start()
+            .apply {
+                thread { inputStream.use { it.copyTo(System.out) } }
+                thread { errorStream.use { it.copyTo(System.out) } }
+                waitFor(30, TimeUnit.SECONDS)
+                if (exitValue() != 0) throw GradleException(":/")
+            }
+    }
+
+}