Added existsCompat and its usages for checking tasks' inputs.

#KT-54232 Ready for Review

Merge-request: KT-MR-11705
Merged-by: Dmitrii Krasnov <Dmitrii.Krasnov@jetbrains.com>

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/Kotlin2JsGradlePluginIT.kt

@@ -21,13 +21,16 @@ import org.jetbrains.kotlin.gradle.targets.js.yarn.YarnLockCopyTask.Companion.YA
 import org.jetbrains.kotlin.gradle.tasks.USING_JS_IR_BACKEND_MESSAGE
 import org.jetbrains.kotlin.gradle.testbase.*
 import org.jetbrains.kotlin.gradle.testbase.TestVersions.Gradle.G_7_6
+import org.jetbrains.kotlin.gradle.util.replaceText
 import org.junit.jupiter.api.DisplayName
-import org.junit.jupiter.api.condition.DisabledIf
 import java.nio.file.Files
 import java.util.zip.ZipFile
 import kotlin.io.path.*
 import kotlin.streams.toList
-import kotlin.test.*
+import kotlin.test.assertEquals
+import kotlin.test.assertFalse
+import kotlin.test.assertNotNull
+import kotlin.test.assertTrue
 
 @JsGradlePluginTests
 class Kotlin2JsIrGradlePluginIT : KGPBaseTest() {
@@ -547,6 +550,26 @@ class Kotlin2JsIrGradlePluginIT : KGPBaseTest() {
         }
     }
 
+    @DisplayName("Not existed friend dependencies does not affect compileKotlinJs UTD")
+    @GradleTest
+    fun testFriendDependenciesDoesNotExist(gradleVersion: GradleVersion) {
+        project("kotlin-js-with-friend-paths", gradleVersion) {
+            build("assemble")
+
+            val oldFriendPaths = "friendPaths.from(project(\":lib\").buildDir.resolve(\"libs/lib.klib\"))"
+            val appModuleGradleBuildKts = subProject("app").buildGradleKts
+            assertFileInProjectContains(appModuleGradleBuildKts.absolutePathString(), oldFriendPaths)
+            appModuleGradleBuildKts.replaceText(
+                oldFriendPaths,
+                "friendPaths.from(project(\":lib\").buildDir.resolve(\"libs/lib.klib\"), project(\":lib\").buildDir.resolve(\"libs/not_existed_lib.klib\"))"
+            )
+
+            build("assemble") {
+                assertTasksUpToDate(":app:compileKotlinJs")
+            }
+        }
+    }
+
     @DisplayName("klib fingerprints")
     @GradleTest
     fun testKlibFingerprints(gradleVersion: GradleVersion) {

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin-js-with-friend-paths/app/build.gradle.kts

@@ -0,0 +1,18 @@
+plugins {
+    kotlin("js")
+}
+
+dependencies {
+    implementation(project(":lib"))
+}
+
+kotlin {
+    js {
+        browser {}
+        binaries.executable()
+    }
+}
+
+tasks.withType<org.jetbrains.kotlin.gradle.tasks.Kotlin2JsCompile>().configureEach {
+    friendPaths.from(project(":lib").buildDir.resolve("libs/lib.klib"))
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin-js-with-friend-paths/app/src/main/kotlin/App.kt

@@ -0,0 +1,7 @@
+package com.example
+
+import com.example.LibClass
+
+fun main() {
+    println(LibClass().helloFromFriend())
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin-js-with-friend-paths/build.gradle.kts

@@ -0,0 +1,13 @@
+plugins {
+    kotlin("js").apply(false)
+}
+
+group = "com.example"
+version = "1.0"
+
+allprojects {
+    repositories {
+        mavenLocal()
+        mavenCentral()
+    }
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin-js-with-friend-paths/lib/build.gradle.kts

@@ -0,0 +1,11 @@
+plugins {
+    kotlin("js")
+}
+
+kotlin {
+    js {
+        useCommonJs()
+        browser {
+        }
+    }
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin-js-with-friend-paths/lib/src/main/kotlin/Lib.kt

@@ -0,0 +1,5 @@
+package com.example
+
+internal class LibClass {
+    fun helloFromFriend() = "Hello from -Xfriend-modules"
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin-js-with-friend-paths/settings.gradle

@@ -0,0 +1,4 @@
+rootProject.name = "kotlin-js-with-friend-paths"
+
+include("lib")
+include("app")

libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/plugin/mpp/apple/XCFrameworkTask.kt

@@ -19,6 +19,7 @@ import org.jetbrains.kotlin.gradle.plugin.diagnostics.UsesKotlinToolingDiagnosti
 import org.jetbrains.kotlin.gradle.plugin.mpp.Framework
 import org.jetbrains.kotlin.gradle.plugin.mpp.NativeBuildType
 import org.jetbrains.kotlin.gradle.tasks.*
+import org.jetbrains.kotlin.gradle.utils.existsCompat
 import org.jetbrains.kotlin.gradle.utils.lowerCamelCaseName
 import org.jetbrains.kotlin.konan.target.HostManager
 import org.jetbrains.kotlin.konan.target.KonanTarget
@@ -181,7 +182,9 @@ internal constructor(
     @get:PathSensitive(PathSensitivity.ABSOLUTE)
     @get:SkipWhenEmpty
     val inputFrameworkFiles: Collection<File>
-        get() = groupedFrameworkFiles.values.flatten().map { it.file }.filter { it.exists() }
+        get() = groupedFrameworkFiles.values.flatten().map { it.file }.filter {
+            it.existsCompat()
+        }
 
     /**
      * A parent directory for the XCFramework.

libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/tasks/Kotlin2JsCompile.kt

@@ -41,6 +41,7 @@ import org.jetbrains.kotlin.gradle.targets.js.ir.PRODUCE_UNZIPPED_KLIB
 import org.jetbrains.kotlin.gradle.targets.js.ir.PRODUCE_ZIPPED_KLIB
 import org.jetbrains.kotlin.gradle.tasks.internal.KotlinJsOptionsCompat
 import org.jetbrains.kotlin.gradle.utils.getFile
+import org.jetbrains.kotlin.gradle.utils.existsCompat
 import org.jetbrains.kotlin.gradle.utils.isParentOf
 import org.jetbrains.kotlin.gradle.utils.newInstance
 import org.jetbrains.kotlin.gradle.utils.toPathsArray
@@ -220,9 +221,7 @@ abstract class Kotlin2JsCompile @Inject constructor(
     internal val friendDependencies: FileCollection = objectFactory
         .fileCollection()
         .from(friendPaths)
-        .filter {
-            it.exists() && libraryFilter(it)
-        }
+        .filter { libraryFilter(it) }
 
     @get:Internal
     internal val sourceMapBaseDir: Property<Directory> = objectFactory

libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/utils/fileUtils.kt

@@ -129,3 +129,19 @@ internal fun Provider<RegularFile>.getFile(): File = get().asFile
 
 @JvmName("getDirectoryAsFile") // avoids jvm signature clash
 internal fun Provider<Directory>.getFile(): File = get().asFile
+
+
+/**
+ * Checks if the file exists, taking into account compatibility with different versions of Gradle.
+ * It should be used instead of [File.exists] in checking UPD inputs. See KT-54232 for more info.
+ *
+ * @return `true` if the file exists, `false` otherwise.
+ *
+ * NOTE: You can remove this method and all its usages since the minimal supported version of gradle become 8.0
+ */
+internal fun File.existsCompat(): Boolean =
+    if (isGradleVersionAtLeast(8, 0)) {
+        true
+    } else {
+        exists()
+    }