1 files changed, 157 insertions, 0 deletions
diff --git a/build-support/src/main/kotlin/platforms.kt b/build-support/src/main/kotlin/platforms.kt
new file mode 100644
index 00000000..4cfb5ae5
--- /dev/null
+++ b/build-support/src/main/kotlin/platforms.kt
@@ -0,0 +1,157 @@
+/*
+ * Copyright (C) 2023 Square, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import org.gradle.api.NamedDomainObjectContainer
+import org.gradle.api.Project
+import org.gradle.kotlin.dsl.get
+import org.gradle.kotlin.dsl.withType
+import org.gradle.nativeplatform.platform.internal.DefaultNativePlatform
+import org.jetbrains.kotlin.gradle.dsl.KotlinMultiplatformExtension
+import org.jetbrains.kotlin.gradle.plugin.KotlinSourceSet
+import org.jetbrains.kotlin.gradle.targets.js.nodejs.NodeJsRootPlugin
+import org.jetbrains.kotlin.gradle.targets.js.testing.KotlinJsTest
+import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
+
+fun KotlinMultiplatformExtension.configureOrCreateOkioPlatforms() {
+  jvm {
+  }
+  if (kmpJsEnabled) {
+    configureOrCreateJsPlatforms()
+  }
+  if (kmpNativeEnabled) {
+    configureOrCreateNativePlatforms()
+  }
+  if (kmpWasmEnabled) {
+    configureOrCreateWasmPlatform()
+  }
+}
+
+fun KotlinMultiplatformExtension.configureOrCreateNativePlatforms() {
+  iosX64()
+  iosArm64()
+  iosSimulatorArm64()
+  tvosX64()
+  tvosArm64()
+  tvosSimulatorArm64()
+  watchosArm32()
+  watchosArm64()
+  watchosDeviceArm64()
+  watchosX64()
+  watchosSimulatorArm64()
+  // Required to generate tests tasks: https://youtrack.jetbrains.com/issue/KT-26547
+  linuxX64()
+  linuxArm64()
+  macosX64()
+  macosArm64()
+  mingwX64()
+}
+
+val appleTargets = listOf(
+  "iosArm64",
+  "iosX64",
+  "iosSimulatorArm64",
+  "macosX64",
+  "macosArm64",
+  "tvosArm64",
+  "tvosX64",
+  "tvosSimulatorArm64",
+  "watchosArm32",
+  "watchosArm64",
+  "watchosDeviceArm64",
+  "watchosX64",
+  "watchosSimulatorArm64",
+)
+
+val mingwTargets = listOf(
+  "mingwX64",
+)
+
+val linuxTargets = listOf(
+  "linuxX64",
+  "linuxArm64",
+)
+
+val nativeTargets = appleTargets + linuxTargets + mingwTargets
+
+val wasmTargets = listOf(
+  "wasmJs",
+  "wasmWasi",
+)
+
+/**
+ * Creates a source set for a directory that isn't already a built-in platform. Use this to create
+ * custom shared directories like `nonJvmMain` or `unixMain`.
+ */
+fun NamedDomainObjectContainer<KotlinSourceSet>.createSourceSet(
+  name: String,
+  parent: KotlinSourceSet? = null,
+  children: List<String> = listOf()
+): KotlinSourceSet {
+  val result = create(name)
+
+  if (parent != null) {
+    result.dependsOn(parent)
+  }
+
+  val suffix = when {
+    name.endsWith("Main") -> "Main"
+    name.endsWith("Test") -> "Test"
+    else -> error("unexpected source set name: ${name}")
+  }
+
+  for (childTarget in children) {
+    val childSourceSet = get("${childTarget}$suffix")
+    childSourceSet.dependsOn(result)
+  }
+
+  return result
+}
+
+fun KotlinMultiplatformExtension.configureOrCreateJsPlatforms() {
+  js {
+    compilations.all {
+      kotlinOptions {
+        moduleKind = "umd"
+        sourceMap = true
+        metaInfo = true
+      }
+    }
+    nodejs {
+      testTask {
+        useMocha {
+          timeout = "30s"
+        }
+      }
+    }
+    browser {
+    }
+  }
+}
+
+fun KotlinMultiplatformExtension.configureOrCreateWasmPlatform(
+  js: Boolean = true,
+  wasi: Boolean = true,
+) {
+  if (js) {
+    wasmJs {
+      nodejs()
+    }
+  }
+  if (wasi) {
+    wasmWasi {
+      nodejs()
+    }
+  }
+}