From dbe7a607b46e98be25301ec3346f7a2b4dad1c1c Mon Sep 17 00:00:00 2001
From: Jens Klingenberg <mail@jensklingenberg.de>
Date: Mon, 27 May 2024 18:49:22 +0200
Subject: [PATCH] Add min version check (#564)

---
 .../ktorfit/gradle/KtorfitCompilerSubPlugin.kt       |  8 ++++++++
 .../ktorfit/gradle/KtorfitGradlePlugin.kt            | 12 ++++++++++++
 2 files changed, 20 insertions(+)

diff --git a/ktorfit-gradle-plugin/src/main/java/de/jensklingenberg/ktorfit/gradle/KtorfitCompilerSubPlugin.kt b/ktorfit-gradle-plugin/src/main/java/de/jensklingenberg/ktorfit/gradle/KtorfitCompilerSubPlugin.kt
index b80f13554..26603eccf 100644
--- a/ktorfit-gradle-plugin/src/main/java/de/jensklingenberg/ktorfit/gradle/KtorfitCompilerSubPlugin.kt
+++ b/ktorfit-gradle-plugin/src/main/java/de/jensklingenberg/ktorfit/gradle/KtorfitCompilerSubPlugin.kt
@@ -4,6 +4,7 @@ import de.jensklingenberg.ktorfit.gradle.KtorfitGradlePlugin.Companion.ARTIFACT_
 import de.jensklingenberg.ktorfit.gradle.KtorfitGradlePlugin.Companion.COMPILER_PLUGIN_ID
 import de.jensklingenberg.ktorfit.gradle.KtorfitGradlePlugin.Companion.GROUP_NAME
 import de.jensklingenberg.ktorfit.gradle.KtorfitGradlePlugin.Companion.KTORFIT_VERSION
+import de.jensklingenberg.ktorfit.gradle.KtorfitGradlePlugin.Companion.MIN_KOTLIN_VERSION
 import de.jensklingenberg.ktorfit.gradle.KtorfitGradlePlugin.Companion.SNAPSHOT
 import org.gradle.api.Project
 import org.gradle.api.provider.Provider
@@ -42,10 +43,17 @@ internal class KtorfitCompilerSubPlugin : KotlinCompilerPluginSupportPlugin {
 
     @OptIn(ExperimentalKotlinGradlePluginApi::class)
     override fun getPluginArtifact(): SubpluginArtifact {
+        checkKotlinVersion(myproject.kotlinExtension.compilerVersion.get())
         return SubpluginArtifact(
             groupId = GROUP_NAME,
             artifactId = ARTIFACT_NAME,
             version = "${KTORFIT_VERSION}-${myproject.kotlinExtension.compilerVersion.get()}${SNAPSHOT}"
         )
     }
+
+    private fun checkKotlinVersion(compilerVersion: String) {
+        if(compilerVersion.split(".")[0] < MIN_KOTLIN_VERSION.split(".")[0]){
+            error("Ktorfit: Kotlin version $compilerVersion is not supported. You need at least version $MIN_KOTLIN_VERSION")
+        }
+    }
 }
diff --git a/ktorfit-gradle-plugin/src/main/java/de/jensklingenberg/ktorfit/gradle/KtorfitGradlePlugin.kt b/ktorfit-gradle-plugin/src/main/java/de/jensklingenberg/ktorfit/gradle/KtorfitGradlePlugin.kt
index e67fc2432..06204abcf 100644
--- a/ktorfit-gradle-plugin/src/main/java/de/jensklingenberg/ktorfit/gradle/KtorfitGradlePlugin.kt
+++ b/ktorfit-gradle-plugin/src/main/java/de/jensklingenberg/ktorfit/gradle/KtorfitGradlePlugin.kt
@@ -7,6 +7,7 @@ import org.gradle.kotlin.dsl.findByType
 import org.jetbrains.kotlin.gradle.dsl.KotlinMultiplatformExtension
 import org.jetbrains.kotlin.gradle.dsl.KotlinProjectExtension
 import org.jetbrains.kotlin.gradle.dsl.KotlinSingleTargetExtension
+import org.jetbrains.kotlin.gradle.dsl.kotlinExtension
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompilationTask
 import java.util.Locale.US
 
@@ -18,6 +19,8 @@ class KtorfitGradlePlugin : Plugin<Project> {
         const val COMPILER_PLUGIN_ID = "ktorfitPlugin"
         const val KTORFIT_VERSION = "2.0.0" // remember to bump this version before any release!
         const val SNAPSHOT = "-SNAPSHOT"
+        const val MIN_KSP_VERSION = "1.0.21"
+        const val MIN_KOTLIN_VERSION = "2.0.0"
     }
 
     override fun apply(project: Project) {
@@ -36,6 +39,8 @@ class KtorfitGradlePlugin : Plugin<Project> {
                 val kspVersion = kspPlugin.javaClass.protectionDomain.codeSource.location.toURI().toString()
                     .substringAfterLast("-").substringBefore(".jar")
 
+                checkKSPVersion(kspVersion)
+
                 val kspExtension = extensions.findByName("ksp") ?: error("KSP config not found")
                 val argMethod = kspExtension.javaClass.getMethod("arg", String::class.java, String::class.java)
 
@@ -94,6 +99,13 @@ class KtorfitGradlePlugin : Plugin<Project> {
 
     }
 
+    private fun checkKSPVersion(kspVersion: String) {
+        val kspVersionParts = kspVersion.split(".")
+        if (kspVersionParts[2].toInt() < MIN_KSP_VERSION.split(".")[2].toInt()) {
+            error("Ktorfit: KSP version $kspVersion is not supported. You need at least version $MIN_KSP_VERSION")
+        }
+    }
+
 }
 
 private val Project.kotlinExtension: KotlinProjectExtension?