NodeSetupTask should not delete general files, only old node versions #297

Author: deepy

src/main/kotlin/com/github/gradle/node/task/NodeSetupTask.kt

@@ -56,7 +56,9 @@ abstract class NodeSetupTask : BaseTask() {
 
     private fun deleteExistingNode() {
         projectHelper.delete {
-            delete(nodeDir.get().dir("../"))
+            delete(nodeDir.get().dir("../").asFileTree.matching {
+                include("node-v*/**")
+            })
         }
     }
 

src/test/groovy/com/github/gradle/AbstractIntegTest.groovy

@@ -61,10 +61,11 @@ abstract class AbstractIntegTest extends Specification {
         return new File(temporaryFolder.getRoot(), name)
     }
 
-    protected final void writeFile(final String name, final String text) {
+    protected final File writeFile(final String name, final String text) {
         File file = createFile(name)
         file.parentFile.mkdirs()
         file << text
+        return file
     }
 
     protected final void writePackageJson(final String text) {

src/test/groovy/com/github/gradle/node/task/NodeSetupTask_integTest.groovy

@@ -47,4 +47,34 @@ node {
         gv << GRADLE_VERSIONS_UNDER_TEST
     }
 
+    def 'nodeSetup should only delete old node versions (#gv.version)'() {
+        given:
+        gradleVersion = gv
+
+        def badVersion = "node-v18.17.0"
+        def goodVersion = "18.17.1"
+        createFile("build.gradle") << """plugins {
+            id "com.github.node-gradle.node"
+        }
+
+        node {
+            version = "${goodVersion}"
+            download = true
+            workDir = file("build/node")
+        }"""
+        def badFile = writeFile("build/node/$badVersion/bin/node.js", "console.log(\"bad\");")
+        def goodFile = writeFile("build/node/important.txt", "should not be deleted by nodeSetup")
+
+        when:
+        def result1 = build("nodeSetup")
+
+        then:
+        result1.task(":nodeSetup").outcome == TaskOutcome.SUCCESS
+        !badFile.exists()
+        goodFile.exists()
+
+        where:
+        gv << GRADLE_VERSIONS_UNDER_TEST
+    }
+
 }