Rewrite version token replacing into standalone task

build.gradle

@@ -17,8 +17,9 @@ buildscript {
 
 plugins {
     id "org.jetbrains.gradle.plugin.idea-ext" version "1.3"
-    id "com.palantir.git-version" version "4.2.0"
+    //id "com.palantir.git-version" version "4.2.0"
 }
+apply plugin: 'com.palantir.git-version' // Declared in buildSrc/build.gradle
 
 import com.cleanroommc.gradle.helpers.ProjectConstants
 import com.cleanroommc.gradle.helpers.tasks.Util

buildSrc/build.gradle

@@ -1,8 +1,10 @@
 repositories {
+    gradlePluginPortal()
     mavenCentral()
 }
 
 dependencies {
     implementation 'org.ow2.asm:asm:9.9'
     implementation 'org.ow2.asm:asm-tree:9.9'
+    implementation 'com.palantir.gradle.gitversion:gradle-git-version:4.2.0'
 }

buildSrc/src/main/groovy/com/cleanroommc/gradle/helpers/tasks/GenVersionTask.groovy

@@ -0,0 +1,28 @@
+package com.cleanroommc.gradle.helpers.tasks
+
+import com.palantir.gradle.gitversion.VersionDetails;
+import org.gradle.api.DefaultTask;
+import org.gradle.api.tasks.Input
+import org.gradle.api.tasks.InputFile;
+import org.gradle.api.tasks.OutputFile;
+import org.gradle.api.tasks.TaskAction;
+
+
+abstract class GenVersionTask extends DefaultTask {
+    @Input
+    final String lastTag = ((Closure<VersionDetails>)getProject().rootProject.getExtensions().getExtraProperties().get('versionDetails')).call().lastTag
+    @InputFile
+    final File template = new File("${getProject().rootProject.projectDir}/templates/CleanroomVersion.java")
+    @OutputFile
+    final File versionClass = new File("${getProject().rootProject.projectDir}/src/main/java/com/cleanroommc/common/CleanroomVersion.java")
+    @TaskAction
+    void action() {
+        versionClass.withWriter { def writer ->
+            template.eachLine { def line ->
+                def newLine = line.replace("%VERSION%", lastTag)
+                    .replace("%BUILD_VERSION%", getProject().rootProject.version.toString())
+                writer.write(newLine + "\n")
+            }
+        }
+    }
+}

projects/cleanroom/build.gradle

@@ -1,4 +1,5 @@
 import com.cleanroommc.gradle.helpers.ProjectConstants
+import com.cleanroommc.gradle.helpers.tasks.GenVersionTask
 import com.cleanroommc.gradle.helpers.tasks.Util
 import groovy.json.JsonBuilder
 import net.minecraftforge.gradle.common.tasks.ApplyBinPatches
@@ -20,8 +21,7 @@ import java.nio.file.Files
 import java.util.zip.ZipFile
 
 def props = project.properties
-def details = versionDetails()
-def spec_version = details.lastTag
+def spec_version = versionDetails().lastTag
 
 evaluationDependsOn(':minecraft')
 apply plugin: 'java-library'
@@ -32,19 +32,10 @@ apply plugin: 'top.outlands.gradle.patcher'
 group = 'com.cleanroommc'
 version = rootProject.version
 
+tasks.register("genVersion", GenVersionTask.class)
+
 compileJava {
-    doFirst {
-        def target = new File("${rootProject.projectDir}/src/main/java/com/cleanroommc/common/CleanroomVersion.java")
-        def template = new File("${rootProject.projectDir}/templates/CleanroomVersion.java")
-
-        target.withWriter { def writer ->
-            template.eachLine { def line ->
-                def newLine = line.replace("%VERSION%", versionDetails().lastTag)
-                    .replace("%BUILD_VERSION%", rootProject.version.toString())
-                writer.write(newLine + "\n")
-            }
-        }
-    }
+    dependsOn tasks.genVersion
 }
 
 sourceSets {