Support Res class generation in JVM only compose projects (#4183)

.github/workflows/gradle-plugin.yml

@@ -31,6 +31,12 @@ jobs:
           cd gradle-plugins
           ./gradlew assemble
           ./gradlew --continue :preview-rpc:test :compose:test :compose:testGradle-${{ matrix.gradle }}
+      - name: Upload Reports
+        uses: actions/upload-artifact@v2
+        with:
+          name: Test-Reports
+          path: gradle-plugins/compose/build/reports
+        if: always()
       - name: Print summary
         shell: bash
         if: always()

gradle-plugins/compose/src/main/kotlin/org/jetbrains/compose/resources/ResourcesGenerator.kt

@@ -2,10 +2,12 @@ package org.jetbrains.compose.resources
 
 import org.gradle.api.Project
 import org.gradle.api.provider.Provider
+import org.gradle.api.tasks.SourceSet
 import org.jetbrains.compose.ComposePlugin
 import org.jetbrains.compose.desktop.application.internal.ComposeProperties
+import org.jetbrains.compose.internal.KOTLIN_JVM_PLUGIN_ID
 import org.jetbrains.compose.internal.KOTLIN_MPP_PLUGIN_ID
-import org.jetbrains.kotlin.gradle.dsl.KotlinMultiplatformExtension
+import org.jetbrains.kotlin.gradle.dsl.KotlinProjectExtension
 import org.jetbrains.kotlin.gradle.plugin.KotlinSourceSet
 import java.io.File
 
@@ -18,14 +20,21 @@ private val androidPluginIds = listOf(
 
 internal fun Project.configureComposeResources() {
     plugins.withId(KOTLIN_MPP_PLUGIN_ID) {
-        val kotlinExtension = project.extensions.getByType(KotlinMultiplatformExtension::class.java)
-        kotlinExtension.sourceSets.all { sourceSet ->
-            val sourceSetName = sourceSet.name
-            val composeResourcesPath = project.projectDir.resolve("src/$sourceSetName/$COMPOSE_RESOURCES_DIR")
-            sourceSet.resources.srcDirs(composeResourcesPath)
-            if (sourceSetName == KotlinSourceSet.COMMON_MAIN_SOURCE_SET_NAME) {
-                configureResourceGenerator(composeResourcesPath, sourceSet)
-            }
+        configureComposeResources(KotlinSourceSet.COMMON_MAIN_SOURCE_SET_NAME)
+    }
+    plugins.withId(KOTLIN_JVM_PLUGIN_ID) {
+        configureComposeResources(SourceSet.MAIN_SOURCE_SET_NAME)
+    }
+}
+
+private fun Project.configureComposeResources(commonSourceSetName: String) {
+    val kotlinExtension = project.extensions.getByType(KotlinProjectExtension::class.java)
+    kotlinExtension.sourceSets.all { sourceSet ->
+        val sourceSetName = sourceSet.name
+        val composeResourcesPath = project.projectDir.resolve("src/$sourceSetName/$COMPOSE_RESOURCES_DIR")
+        sourceSet.resources.srcDirs(composeResourcesPath)
+        if (sourceSetName == commonSourceSetName) {
+            configureResourceGenerator(composeResourcesPath, sourceSet)
         }
     }
 }

gradle-plugins/compose/src/test/kotlin/org/jetbrains/compose/test/tests/integration/ResourcesTest.kt

@@ -126,4 +126,15 @@ class ResourcesTest : GradlePluginTestBase() {
             )
         }
     }
+
+    @Test
+    fun testJvmOnlyProject(): Unit = with(testProject("misc/jvmOnlyResources")) {
+        gradle("generateComposeResClass").checks {
+            assertEqualTextFiles(
+                file("build/generated/compose/resourceGenerator/kotlin/me/app/jvmonlyresources/generated/resources/Res.kt"),
+                file("expected/Res.kt")
+            )
+        }
+        gradle("jar")
+    }
 }

gradle-plugins/compose/src/test/test-projects/misc/jvmOnlyResources/build.gradle.kts

@@ -0,0 +1,12 @@
+plugins {
+    id("org.jetbrains.compose")
+    kotlin("jvm")
+}
+
+group = "me.app"
+
+dependencies {
+    implementation(compose.desktop.currentOs)
+    implementation(compose.components.resources)
+}
+

gradle-plugins/compose/src/test/test-projects/misc/jvmOnlyResources/expected/Res.kt

@@ -0,0 +1,35 @@
+package me.app.jvmonlyresources.generated.resources
+
+import kotlin.ByteArray
+import kotlin.OptIn
+import kotlin.String
+import org.jetbrains.compose.resources.DrawableResource
+import org.jetbrains.compose.resources.ExperimentalResourceApi
+import org.jetbrains.compose.resources.ResourceItem
+import org.jetbrains.compose.resources.readResourceBytes
+
+@OptIn(org.jetbrains.compose.resources.InternalResourceApi::class)
+@ExperimentalResourceApi
+internal object Res {
+    /**
+     * Reads the content of the resource file at the specified path and returns it as a byte array.
+     *
+     * Example: `val bytes = Res.readBytes("files/key.bin")`
+     *
+     * @param path The path of the file to read in the compose resource's directory.
+     * @return The content of the file as a byte array.
+     */
+    public suspend fun readBytes(path: String): ByteArray = readResourceBytes(path)
+
+    public object drawable {
+        public val vector: DrawableResource = DrawableResource(
+            "drawable:vector",
+            setOf(
+                ResourceItem(
+                    setOf(),
+                    "drawable/vector.xml"
+                ),
+            )
+        )
+    }
+}

gradle-plugins/compose/src/test/test-projects/misc/jvmOnlyResources/gradle.properties

@@ -0,0 +1 @@
+org.gradle.jvmargs=-Xmx8096M

gradle-plugins/compose/src/test/test-projects/misc/jvmOnlyResources/settings.gradle.kts

@@ -0,0 +1,22 @@
+rootProject.name = "jvmOnlyResources"
+pluginManagement {
+    repositories {
+        mavenLocal()
+        gradlePluginPortal()
+        google()
+        maven("https://maven.pkg.jetbrains.space/public/p/compose/dev")
+    }
+    plugins {
+        id("org.jetbrains.kotlin.jvm").version("KOTLIN_VERSION_PLACEHOLDER")
+        id("org.jetbrains.compose").version("COMPOSE_GRADLE_PLUGIN_VERSION_PLACEHOLDER")
+    }
+}
+dependencyResolutionManagement {
+    repositories {
+        mavenLocal()
+        maven("https://maven.pkg.jetbrains.space/public/p/compose/dev")
+        mavenCentral()
+        gradlePluginPortal()
+        google()
+    }
+}

gradle-plugins/compose/src/test/test-projects/misc/jvmOnlyResources/src/main/composeResources/drawable/vector.xml

@@ -0,0 +1,36 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="600dp"
+    android:height="600dp"
+    android:viewportWidth="600"
+    android:viewportHeight="600">
+  <path
+      android:pathData="M301.21,418.53C300.97,418.54 300.73,418.56 300.49,418.56C297.09,418.59 293.74,417.72 290.79,416.05L222.6,377.54C220.63,376.43 219,374.82 217.85,372.88C216.7,370.94 216.09,368.73 216.07,366.47L216.07,288.16C216.06,287.32 216.09,286.49 216.17,285.67C216.38,283.54 216.91,281.5 217.71,279.6L199.29,268.27L177.74,256.19C175.72,260.43 174.73,265.23 174.78,270.22L174.79,387.05C174.85,393.89 178.57,400.2 184.53,403.56L286.26,461.02C290.67,463.51 295.66,464.8 300.73,464.76C300.91,464.76 301.09,464.74 301.27,464.74C301.24,449.84 301.22,439.23 301.22,439.23L301.21,418.53Z"
+      android:fillColor="#041619"
+      android:fillType="nonZero"/>
+  <path
+      android:pathData="M409.45,242.91L312.64,188.23C303.64,183.15 292.58,183.26 283.68,188.51L187.92,245C183.31,247.73 179.93,251.62 177.75,256.17L177.74,256.19L199.29,268.27L217.71,279.6C217.83,279.32 217.92,279.02 218.05,278.74C218.24,278.36 218.43,277.98 218.64,277.62C219.06,276.88 219.52,276.18 220.04,275.51C221.37,273.8 223.01,272.35 224.87,271.25L289.06,233.39C290.42,232.59 291.87,231.96 293.39,231.51C295.53,230.87 297.77,230.6 300,230.72C302.98,230.88 305.88,231.73 308.47,233.2L373.37,269.85C375.54,271.08 377.49,272.68 379.13,274.57C379.68,275.19 380.18,275.85 380.65,276.53C380.86,276.84 381.05,277.15 381.24,277.47L397.79,266.39L420.34,252.93L420.31,252.88C417.55,248.8 413.77,245.35 409.45,242.91Z"
+      android:fillColor="#37BF6E"
+      android:fillType="nonZero"/>
+  <path
+      android:pathData="M381.24,277.47C381.51,277.92 381.77,278.38 382.01,278.84C382.21,279.24 382.39,279.65 382.57,280.06C382.91,280.88 383.19,281.73 383.41,282.59C383.74,283.88 383.92,285.21 383.93,286.57L383.93,361.1C383.96,363.95 383.35,366.77 382.16,369.36C381.93,369.86 381.69,370.35 381.42,370.83C379.75,373.79 377.32,376.27 374.39,378L310.2,415.87C307.47,417.48 304.38,418.39 301.21,418.53L301.22,439.23C301.22,439.23 301.24,449.84 301.27,464.74C306.1,464.61 310.91,463.3 315.21,460.75L410.98,404.25C419.88,399 425.31,389.37 425.22,379.03L425.22,267.85C425.17,262.48 423.34,257.34 420.34,252.93L397.79,266.39L381.24,277.47Z"
+      android:fillColor="#3870B2"
+      android:fillType="nonZero"/>
+  <path
+      android:pathData="M177.75,256.17C179.93,251.62 183.31,247.73 187.92,245L283.68,188.51C292.58,183.26 303.64,183.15 312.64,188.23L409.45,242.91C413.77,245.35 417.55,248.8 420.31,252.88L420.34,252.93L498.59,206.19C494.03,199.46 487.79,193.78 480.67,189.75L320.86,99.49C306.01,91.1 287.75,91.27 273.07,99.95L114.99,193.2C107.39,197.69 101.81,204.11 98.21,211.63L177.74,256.19L177.75,256.17ZM301.27,464.74C301.09,464.74 300.91,464.76 300.73,464.76C295.66,464.8 290.67,463.51 286.26,461.02L184.53,403.56C178.57,400.2 174.85,393.89 174.79,387.05L174.78,270.22C174.73,265.23 175.72,260.43 177.74,256.19L98.21,211.63C94.86,218.63 93.23,226.58 93.31,234.82L93.31,427.67C93.42,438.97 99.54,449.37 109.4,454.92L277.31,549.77C284.6,553.88 292.84,556.01 301.2,555.94L301.2,555.8C301.39,543.78 301.33,495.26 301.27,464.74Z"
+      android:strokeWidth="10"
+      android:fillColor="#00000000"
+      android:strokeColor="#083042"
+      android:fillType="nonZero"/>
+  <path
+      android:pathData="M498.59,206.19L420.34,252.93C423.34,257.34 425.17,262.48 425.22,267.85L425.22,379.03C425.31,389.37 419.88,399 410.98,404.25L315.21,460.75C310.91,463.3 306.1,464.61 301.27,464.74C301.33,495.26 301.39,543.78 301.2,555.8L301.2,555.94C309.48,555.87 317.74,553.68 325.11,549.32L483.18,456.06C497.87,447.39 506.85,431.49 506.69,414.43L506.69,230.91C506.6,222.02 503.57,213.5 498.59,206.19Z"
+      android:strokeWidth="10"
+      android:fillColor="#00000000"
+      android:strokeColor="#083042"
+      android:fillType="nonZero"/>
+  <path
+      android:pathData="M301.2,555.94C292.84,556.01 284.6,553.88 277.31,549.76L109.4,454.92C99.54,449.37 93.42,438.97 93.31,427.67L93.31,234.82C93.23,226.58 94.86,218.63 98.21,211.63C101.81,204.11 107.39,197.69 114.99,193.2L273.07,99.95C287.75,91.27 306.01,91.1 320.86,99.49L480.67,189.75C487.79,193.78 494.03,199.46 498.59,206.19C503.57,213.5 506.6,222.02 506.69,230.91L506.69,414.43C506.85,431.49 497.87,447.39 483.18,456.06L325.11,549.32C317.74,553.68 309.48,555.87 301.2,555.94Z"
+      android:strokeWidth="10"
+      android:fillColor="#00000000"
+      android:strokeColor="#083042"
+      android:fillType="nonZero"/>
+</vector>

gradle-plugins/compose/src/test/test-projects/misc/jvmOnlyResources/src/main/kotlin/App.kt

@@ -0,0 +1,13 @@
+import androidx.compose.foundation.Image
+import androidx.compose.runtime.Composable
+import me.app.jvmonlyresources.generated.resources.Res
+import org.jetbrains.compose.resources.*
+
+@OptIn(ExperimentalResourceApi::class)
+@Composable
+fun App() {
+    Image(
+        painter = painterResource(Res.drawable.vector),
+        contentDescription = null
+    )
+}