Make checking Xcode version faster.

xcodebuild -version call may take enormous amount of time even after warmup. To alleviate this, first try to check Xcode version directly by reading application .plist file, but still use xcodebuild -version as a fallback.

Merge-request: KT-MR-7694
Merged-by: Gleb Lukianets <Gleb.Lukianets@jetbrains.com>

kotlin-native/shared/build.gradle.kts

@@ -48,6 +48,10 @@ tasks.jar {
     archiveFileName.set("shared.jar")
 }
 
+projectTest(jUnitMode = JUnitMode.JUnit5) {
+    useJUnitPlatform()
+}
+
 dependencies {
     kotlinCompilerClasspath("org.jetbrains.kotlin:kotlin-compiler-embeddable:$kotlinVersion")
 
@@ -55,4 +59,5 @@ dependencies {
     implementation(commonDependency("org.jetbrains.kotlin:kotlin-reflect")) { isTransitive = false }
     api("org.jetbrains.kotlin:kotlin-native-utils:$kotlinVersion")
     api("org.jetbrains.kotlin:kotlin-util-klib:$kotlinVersion")
+    testApiJUnit5()
 }

kotlin-native/shared/src/main/kotlin/org/jetbrains/kotlin/konan/target/Xcode.kt

@@ -64,7 +64,7 @@ interface Xcode {
     }
 }
 
-private class CurrentXcode : Xcode {
+internal class CurrentXcode : Xcode {
 
     override val toolchain by lazy {
         val ldPath = xcrun("-f", "ld") // = $toolchain/usr/bin/ld
@@ -87,10 +87,19 @@ private class CurrentXcode : Xcode {
     override val watchosSdk: String by lazy { getSdkPath("watchos") }
     override val watchsimulatorSdk: String by lazy { getSdkPath("watchsimulator") }
 
+    internal val xcodebuildVersion: String
+        get() = xcrun("xcodebuild", "-version")
+                .removePrefix("Xcode ")
+
+    internal val bundleVersion: String
+        get() = bash("""/usr/libexec/PlistBuddy "$(xcode-select -print-path)/../Info.plist" -c "Print :CFBundleShortVersionString"""")
 
     override val version by lazy {
-        xcrun("xcodebuild", "-version")
-                .removePrefix("Xcode ")
+        try {
+            bundleVersion
+        } catch (e: KonanExternalToolFailure) {
+            xcodebuildVersion
+        }
     }
 
     private fun xcrun(vararg args: String): String = try {
@@ -107,5 +116,7 @@ private class CurrentXcode : Xcode {
         throw MissingXcodeException(message, e)
     }
 
+    private fun bash(command: String): String = Command("/bin/bash", "-c", command).getOutputLines().joinToString("\n")
+
     private fun getSdkPath(sdk: String) = xcrun("--sdk", sdk, "--show-sdk-path")
 }

kotlin-native/shared/src/test/kotlin/org/jetbrains/kotlin/konan/target/CurrentXcodeTest.kt

@@ -0,0 +1,44 @@
+/*
+ * Copyright 2010-2022 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.konan.target
+
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.Assertions.*
+import org.junit.jupiter.api.BeforeAll
+import org.junit.jupiter.api.Assumptions.assumeTrue
+
+internal class CurrentXcodeTest {
+    companion object {
+        @BeforeAll
+        @JvmStatic
+        fun assumeMacOS() {
+            assumeTrue(HostManager.hostIsMac)
+        }
+    }
+    @Test
+    fun `Should be able to access Xcode bundle version`() {
+        val version = CurrentXcode().bundleVersion
+        assertNotEquals("", version)
+    }
+
+    @Test
+    fun `Should be able to access xcodebuild version`() {
+        val version = CurrentXcode().xcodebuildVersion
+        assertNotEquals("", version)
+    }
+
+    @Test
+    fun `Xcode bundle version version should match xcodebuild version`() {
+        val xcode = CurrentXcode()
+
+        val xcodebuildVersion = xcode.xcodebuildVersion
+        val bundleVersion = xcode.bundleVersion
+        val version = xcode.version
+
+        assertEquals(xcodebuildVersion, bundleVersion)
+        assertEquals(xcodebuildVersion, version)
+    }
+}