[Gradle] Use unique artifact name for podspec task + avoid redundant task registration

^KT-51518 Verification Pending

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

@@ -32,15 +32,15 @@ class NativeLibraryDslWithCocoapodsIT : BaseGradleIT() {
             build(":shared:tasks") {
                 assertSuccessful()
                 assertTasksRegistered(
-                    ":shared:generateMylibPodspec",
-                    ":shared:generateMyslibPodspec",
-                    ":shared:generateMyframePodspec",
-                    ":shared:generateMyfatframePodspec",
-                    ":shared:generateSharedPodspec",
-                    ":lib:generateGrooframePodspec",
-                )
-                assertTasksNotRegistered(
-                    ":shared:generateMyfatframewithoutpodspecPodspec",
+                    ":shared:generateMylibStaticLibraryLinuxX64Podspec",
+                    ":shared:generateMyslibSharedLibraryLinuxX64Podspec",
+                    ":shared:generateMyframeFrameworkIosArm64Podspec",
+                    ":shared:generateMyfatframeFatFrameworkPodspec",
+                    ":shared:generateSharedXCFrameworkPodspec",
+                    ":lib:generateGrooframeFrameworkIosArm64Podspec",
+                    ":lib:generateGrooxcframeXCFrameworkPodspec",
+                    ":shared:generateMyframewihtoutpodspecFrameworkIosArm64Podspec",
+                    ":lib:generateGrooxcframewithoutpodspecXCFrameworkPodspec",
                 )
             }
         }
@@ -51,7 +51,7 @@ class NativeLibraryDslWithCocoapodsIT : BaseGradleIT() {
         project {
             build(":shared:assembleMylibStaticLibraryLinuxX64") {
                 assertSuccessful()
-                assertTasksExecuted(":shared:generateMylibPodspec")
+                assertTasksExecuted(":shared:generateMylibStaticLibraryLinuxX64Podspec")
                 assertFilesContentEqual("podspecs/mylib.podspec", "/shared/build/out/static/mylib.podspec")
             }
         }
@@ -62,29 +62,50 @@ class NativeLibraryDslWithCocoapodsIT : BaseGradleIT() {
         project {
             build(":shared:assembleMyslibSharedLibraryLinuxX64") {
                 assertSuccessful()
-                assertTasksExecuted(":shared:generateMyslibPodspec")
+                assertTasksExecuted(":shared:generateMyslibSharedLibraryLinuxX64Podspec")
                 assertFilesContentEqual("podspecs/myslib.podspec", "/shared/build/out/dynamic/myslib.podspec")
             }
         }
     }
 
+    @Test
+    fun `not generate podspec when withPodspec is empty`() {
+        project {
+            build(":shared:assembleMyslibwithoutpodspecSharedLibraryLinuxX64") {
+                assertSuccessful()
+                assertTasksSkipped(":shared:generateMyslibwithoutpodspecSharedLibraryLinuxX64Podspec")
+                assertContains("Skipping task ':shared:generateMyslibwithoutpodspecSharedLibraryLinuxX64Podspec' because there are no podspec attributes defined")
+            }
+        }
+    }
+
     @Test
     fun `generate podspec when assembling framework`() {
         project {
             build(":shared:assembleMyframeFrameworkIosArm64") {
                 assertSuccessful()
-                assertTasksExecuted(":shared:generateMyframePodspec")
+                assertTasksExecuted(":shared:generateMyframeFrameworkIosArm64Podspec")
                 assertFilesContentEqual("podspecs/myframe.podspec", "/shared/build/out/framework/myframe.podspec")
             }
         }
     }
 
+    @Test
+    fun `not generate podspec when there is no withPodspec`() {
+        project {
+            build(":shared:assembleMyframewihtoutpodspecFrameworkIosArm64") {
+                assertSuccessful()
+                assertTasksSkipped(":shared:generateMyframewihtoutpodspecFrameworkIosArm64Podspec")
+            }
+        }
+    }
+
     @Test
     fun `generate podspec when assembling fat framework`() {
         project {
             build(":shared:assembleMyfatframeFatFramework") {
                 assertSuccessful()
-                assertTasksExecuted(":shared:generateMyfatframePodspec")
+                assertTasksExecuted(":shared:generateMyfatframeFatFrameworkPodspec")
                 assertFilesContentEqual("podspecs/myfatframe.podspec", "/shared/build/out/fatframework/myfatframe.podspec")
             }
         }
@@ -95,23 +116,62 @@ class NativeLibraryDslWithCocoapodsIT : BaseGradleIT() {
         project {
             build(":shared:assembleSharedXCFramework") {
                 assertSuccessful()
-                assertTasksExecuted(":shared:generateSharedPodspec")
+                assertTasksExecuted(":shared:generateSharedXCFrameworkPodspec")
                 assertFilesContentEqual("podspecs/shared.podspec", "/shared/build/out/xcframework/shared.podspec")
             }
         }
     }
 
     @Test
-    fun `generate podspec when assembling framework from groovy`() {
+    fun `generate podspec when assembling xcframework from groovy`() {
         project {
             build(":lib:assembleGrooframeFrameworkIosArm64") {
                 assertSuccessful()
-                assertTasksExecuted(":lib:generateGrooframePodspec")
+                assertTasksExecuted(":lib:generateGrooframeFrameworkIosArm64Podspec")
                 assertFilesContentEqual("podspecs/grooframe.podspec", "/lib/build/out/framework/grooframe.podspec")
             }
         }
     }
 
+    @Test
+    fun `not generate podspec from groovy when withPodspec is empty`() {
+        project {
+            build(":lib:assembleGrooxcframeXCFramework") {
+                assertSuccessful()
+                assertTasksSkipped(":lib:generateGrooxcframeXCFrameworkPodspec")
+            }
+        }
+    }
+
+    @Test
+    fun `not generate podspec from groovy when there is no withPodspec`() {
+        project {
+            build(":lib:assembleGrooxcframewithoutpodspecXCFramework") {
+                assertSuccessful()
+                assertTasksSkipped(":lib:generateGrooxcframewithoutpodspecXCFrameworkPodspec")
+            }
+        }
+    }
+
+    @Test
+    fun `generate podspecs when several frameworks have with the same name`() {
+        project {
+            projectDir.resolve("shared/build.gradle.kts").appendText("""
+                kotlinArtifacts {
+                    Native.Library {
+                         target = linuxX64
+                         
+                         withPodspec {}
+                    }
+                }
+            """.trimIndent())
+
+            build(":shared:assembleSharedXCFramework") {
+                assertSuccessful()
+            }
+        }
+    }
+
     private fun project(block: Project.() -> Unit) {
         transformProjectWithPluginsDsl("new-kn-library-dsl-cocoapods").block()
     }

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-kn-library-dsl-cocoapods/lib/build.gradle

@@ -23,9 +23,21 @@ kotlinArtifacts {
             attribute('homepage', 'https://example.com/lib')
             attribute('ios.deployment_target', '"10.0"')
             attribute('swift_versions', '[\'4\', \'5\']')
+        }
 
+        withPodspec {
             rawStatement('    # This is raw statement that is appended \'as is\' to the podspec')
             rawStatement('    spec.frameworks = \'CFNetwork\'')
         }
     }
+
+    it.native.XCFramework("grooxcframe") {
+        targets(iosX64, iosArm64, iosSimulatorArm64)
+
+        withPodspec {}
+    }
+
+    it.native.XCFramework("grooxcframewithoutpodspec") {
+        targets(iosX64, iosArm64, iosSimulatorArm64)
+    }
 }

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-kn-library-dsl-cocoapods/podspecs/myslib.podspec

@@ -1,5 +1,6 @@
 Pod::Spec.new do |spec|
     spec.name                     = 'myslib'
-    spec.version                  = '0.1'
     spec.vendored_library         = 'libmyslib.dylib'
+
+    spec.version                  = '111'
 end

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/new-kn-library-dsl-cocoapods/shared/build.gradle.kts

@@ -42,6 +42,16 @@ kotlinArtifacts {
         modes(DEBUG)
         addModule(project(":lib"))
 
+        withPodspec {
+            attribute("version", "111")
+        }
+    }
+    Native.Library("myslibwithoutpodspec") {
+        target = linuxX64
+        isStatic = false
+        modes(DEBUG)
+        addModule(project(":lib"))
+
         withPodspec {} // intentionally empty
     }
     Native.Framework("myframe") {
@@ -83,13 +93,17 @@ kotlinArtifacts {
             attribute("license", "MIT")
             attribute("homepage", "https://github.com/Alpaca/Alpaca")
             attribute("source", "{ :git => 'https://github.com/Alpaca/Alpaca.git', :tag => spec.version }")
+        }
 
+        withPodspec {
             attribute("ios.deployment_target", "10.0")
             attribute("osx.deployment_target", "10.12")
             attribute("watchos.deployment_target", "3.0")
 
             attribute("swift_versions", "['4', '5']")
+        }
 
+        withPodspec {
             rawStatement("    # This is raw statement that is appended 'as is' to the podspec")
             rawStatement("    spec.frameworks = 'CFNetwork'")
         }

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

@@ -5,13 +5,11 @@
 
 package org.jetbrains.kotlin.gradle.targets.native.cocoapods
 
-import org.gradle.api.*
 import org.gradle.api.plugins.ExtensionAware
 import org.jetbrains.kotlin.gradle.plugin.cocoapods.KotlinCocoapodsPlugin
 import org.jetbrains.kotlin.gradle.plugin.findExtension
-import javax.inject.Inject
 
-abstract class KotlinArtifactsPodspecExtension @Inject constructor(private val project: Project) {
+abstract class KotlinArtifactsPodspecExtension {
 
     private val attrs = mutableMapOf<String, String>()
     private val statements = mutableListOf<String>()
@@ -22,14 +20,20 @@ abstract class KotlinArtifactsPodspecExtension @Inject constructor(private val p
     internal val rawStatements: List<String>
         get() = statements
 
+    /**
+     * Appends an attribute to the generated podspec
+     */
     fun attribute(key: String, value: String) {
         attrs[key] = value
     }
 
+    /**
+     * Appends a statement 'as is' to the end of the generated podspec
+     */
     fun rawStatement(statement: String) {
         statements.add(statement)
     }
 }
 
-val ExtensionAware.kotlinArtifactsPodspecExtension: KotlinArtifactsPodspecExtension?
+internal val ExtensionAware.kotlinArtifactsPodspecExtension: KotlinArtifactsPodspecExtension?
     get() = findExtension(KotlinCocoapodsPlugin.ARTIFACTS_PODSPEC_EXTENSION_NAME)

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

@@ -412,7 +412,7 @@ open class KotlinCocoapodsPlugin : Plugin<Project> {
     ) {
         val artifactName = artifact.artifactName
         val assembleTask = project.tasks.named(artifact.taskName)
-        val podspecTaskName = lowerCamelCaseName("generate", artifactName, "podspec")
+        val podspecTaskName = lowerCamelCaseName("generate", artifact.name, "podspec")
 
         val artifactType = when (artifact) {
             is KotlinNativeLibrary -> when {
@@ -446,16 +446,14 @@ open class KotlinCocoapodsPlugin : Plugin<Project> {
         cocoapodsExtension: CocoapodsExtension,
     ) {
         artifactsExtension.artifactConfigs.withType(KotlinNativeArtifactConfig::class.java) { artifactConfig ->
-            val podspecExtension = project.objects.newInstance<KotlinArtifactsPodspecExtension>(project)
+            val podspecExtension = project.objects.newInstance<KotlinArtifactsPodspecExtension>()
             artifactConfig.addExtension(ARTIFACTS_PODSPEC_EXTENSION_NAME, podspecExtension)
         }
 
         artifactsExtension.artifacts.withType(KotlinNativeArtifact::class.java) { artifact ->
-            val podspecExtension = artifact.kotlinArtifactsPodspecExtension
+            val podspecExtension = requireNotNull(artifact.kotlinArtifactsPodspecExtension)
 
-            if (podspecExtension != null) {
-                registerPodspecTask(project, artifact, podspecExtension, cocoapodsExtension)
-            }
+            registerPodspecTask(project, artifact, podspecExtension, cocoapodsExtension)
         }
     }
 

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

@@ -8,6 +8,7 @@ package org.jetbrains.kotlin.gradle.targets.native.tasks
 import org.gradle.api.DefaultTask
 import org.gradle.api.file.DirectoryProperty
 import org.gradle.api.file.RegularFile
+import org.gradle.api.logging.Logger
 import org.gradle.api.provider.ListProperty
 import org.gradle.api.provider.MapProperty
 import org.gradle.api.provider.Property
@@ -23,6 +24,16 @@ abstract class GenerateArtifactPodspecTask : DefaultTask() {
         StaticLibrary, DynamicLibrary, Framework, FatFramework, XCFramework
     }
 
+    init {
+        this.onlyIf {
+            val shouldRun = attributes.get().isNotEmpty() || rawStatements.get().isNotEmpty()
+            if (!shouldRun) {
+                logger.info("Skipping task '$path' because there are no podspec attributes defined")
+            }
+            shouldRun
+        }
+    }
+
     @get:Input
     abstract val specName: Property<String>