From fdc8d34f8274d0135ecb856b189129c30337eb69 Mon Sep 17 00:00:00 2001
From: Hubert Van De Walle <hubv@protonmail.com>
Date: Mon, 26 Oct 2020 22:14:01 +0100
Subject: [PATCH] Move postcss purge config to gradle

---
 .../src/main/kotlin/be/simplenotes/CssTask.kt | 41 +++++++++++++++----
 css/tailwind.config.js                        |  2 +-
 .../kotlin/be/simplenotes/views/NoteView.kt   |  4 +-
 3 files changed, 36 insertions(+), 11 deletions(-)

diff --git a/buildSrc/src/main/kotlin/be/simplenotes/CssTask.kt b/buildSrc/src/main/kotlin/be/simplenotes/CssTask.kt
index 93d5533..870707d 100644
--- a/buildSrc/src/main/kotlin/be/simplenotes/CssTask.kt
+++ b/buildSrc/src/main/kotlin/be/simplenotes/CssTask.kt
@@ -2,9 +2,8 @@ package be.simplenotes
 
 import org.gradle.api.DefaultTask
 import org.gradle.api.GradleException
-import org.gradle.api.tasks.InputDirectory
-import org.gradle.api.tasks.OutputDirectory
-import org.gradle.api.tasks.TaskAction
+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
@@ -12,31 +11,57 @@ import kotlin.concurrent.thread
 
 open class CssTask : DefaultTask() {
 
-    private val root = project.file(".").parent
+    private val root = project.parent!!.rootDir
+
+    private val viewsProject = project
+        .parent
+        ?.project(":simplenotes-views")
+        ?: error("Missing :simplenotes-views")
 
     @get:InputDirectory
-    val templatesDir = File(root, "simplenotes-views/src/main/kotlin/be/simplenotes/views")
+    val templatesDir = viewsProject.extensions
+        .getByType<SourceSetContainer>()
+        .asMap.getOrElse("main") { error("main sources not found") }
+        .allSource.srcDirs
+        .find { it.endsWith("kotlin") }
+        ?: 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 yarnRoot = File(project.rootDir, "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.listFiles()?.let { it.forEach { it.delete() } }
+        outputRootDir.deleteRecursively()
 
         ProcessBuilder("yarn", "run", "postcss", "build", "$cssIndex", "--output", "$cssOutput")
-            .apply { environment()["MANIFEST"] = "$manifestOutput" }
+            .apply {
+                environment().let {
+                    it["MANIFEST"] = "$manifestOutput"
+                    it["NODE_ENV"] = "production"
+                    it["PURGE"] = purgeGlob
+                }
+            }
             .redirectOutput(PIPE)
             .redirectError(PIPE)
             .directory(yarnRoot)
diff --git a/css/tailwind.config.js b/css/tailwind.config.js
index 89b9bb2..614a2c8 100644
--- a/css/tailwind.config.js
+++ b/css/tailwind.config.js
@@ -1,7 +1,7 @@
 module.exports = {
     purge: {
         content: [
-            '../simplenotes-app/src/main/kotlin/be/simplenotes/app/views/**/*.kt'
+            process.env.PURGE
         ]
     },
     theme: {
diff --git a/simplenotes-views/src/main/kotlin/be/simplenotes/views/NoteView.kt b/simplenotes-views/src/main/kotlin/be/simplenotes/views/NoteView.kt
index c14b720..0c9e944 100644
--- a/simplenotes-views/src/main/kotlin/be/simplenotes/views/NoteView.kt
+++ b/simplenotes-views/src/main/kotlin/be/simplenotes/views/NoteView.kt
@@ -184,8 +184,8 @@ class NoteView(styles: String) : View(styles) {
                     type = ButtonType.submit,
                     name = if (note.public) "private" else "public",
                     classes = "font-semibold border-b-4 " +
-                        if (!note.public) "border-teal-200" else "border-green-500" +
-                            " p-2 rounded-r bg-teal-200 text-gray-800"
+                        (if (!note.public) "border-teal-200" else "border-green-500") +
+                        " p-2 rounded-r bg-teal-200 text-gray-800"
                 ) {
                     +"Public"
                 }