[KT-53174] Add platform version to synthetic generated Podfile.

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

@@ -240,6 +240,7 @@ class CocoaPodsIT : BaseGradleIT() {
     fun testSyntheticProjectPodspecGeneration() {
         val gradleProject = transformProjectWithPluginsDsl(cocoapodsSingleKtPod, gradleVersion)
         gradleProject.gradleBuildScript().appendToCocoapodsBlock("""
+            ios.deploymentTarget = "14.1"
             pod("SSZipArchive")
             pod("AFNetworking", "~> 4.0.1")
             pod("Alamofire") {
@@ -251,6 +252,7 @@ class CocoaPodsIT : BaseGradleIT() {
         gradleProject.build("podGenIOS", "-Pkotlin.native.cocoapods.generate.wrapper=true") {
             assertSuccessful()
             val podfileText = gradleProject.projectDir.resolve("build/cocoapods/synthetic/IOS/Podfile").readText().trim()
+            assertTrue(podfileText.contains("platform :ios, '14.1'"))
             assertTrue(podfileText.contains("pod 'SSZipArchive'"))
             assertTrue(podfileText.contains("pod 'AFNetworking', '~> 4.0.1'"))
             assertTrue(podfileText.contains("pod 'Alamofire', :git => 'https://github.com/Alamofire/Alamofire.git', :tag => '5.6.1'"))

libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/targets/native/cocoapods/KotlinCocoapodsPlugin.kt

@@ -457,6 +457,14 @@ open class KotlinCocoapodsPlugin : Plugin<Project> {
             }
             families += family
 
+            val platformSettings = when (family) {
+                Family.IOS -> cocoapodsExtension.ios
+                Family.OSX -> cocoapodsExtension.osx
+                Family.TVOS -> cocoapodsExtension.tvos
+                Family.WATCHOS -> cocoapodsExtension.watchos
+                else -> error("Unknown cocoapods platform: $family")
+            }
+
             project.tasks.register(family.toPodGenTaskName, PodGenTask::class.java) {
                 it.description = "Сreates a synthetic Xcode project to retrieve CocoaPods dependencies"
                 it.podspec = podspecTaskProvider.map { task -> task.outputFile }
@@ -464,6 +472,7 @@ open class KotlinCocoapodsPlugin : Plugin<Project> {
                 it.useLibraries = project.provider { cocoapodsExtension.useLibraries }
                 it.specRepos = project.provider { cocoapodsExtension.specRepos }
                 it.family = family
+                it.platformSettings = platformSettings
                 it.pods.set(cocoapodsExtension.pods)
                 it.dependsOn(downloadPods)
             }

libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/targets/native/tasks/AdvancedCocoapodsTasks.kt

@@ -408,6 +408,9 @@ open class PodGenTask : CocoapodsTask() {
     @get:Internal
     lateinit var family: Family
 
+    @get:Nested
+    internal lateinit var platformSettings: PodspecPlatformSettings
+
     @get:Nested
     internal lateinit var specRepos: Provider<SpecRepos>
 
@@ -480,6 +483,12 @@ open class PodGenTask : CocoapodsTask() {
             if (useLibraries.get().not()) {
                 appendLine("\tuse_frameworks!")
             }
+            val deploymentTarget = platformSettings.deploymentTarget
+            if (deploymentTarget != null) {
+                appendLine("\tplatform :${platformSettings.name}, '$deploymentTarget'")
+            } else {
+                appendLine("\tplatform :${platformSettings.name}")
+            }
             pods.get().mapNotNull {
                 buildString {
                     append("pod '${it.name}'")