Allow overriding COMPOSE_GRADLE_PLUGIN_COMPOSE_VERSION via Gradle property

Gradle properties are more convenient for local builds

gradle-plugins/build.gradle.kts

@@ -8,7 +8,7 @@ plugins {
 
 subprojects {
     group = BuildProperties.group
-    version = BuildProperties.version
+    version = BuildProperties.deployVersion(project)
 
     repositories {
         maven("https://dl.bintray.com/kotlin/kotlin-dev")

gradle-plugins/buildSrc/src/main/kotlin/BuildProperties.kt

@@ -1,11 +1,14 @@
+import org.gradle.api.Project
+
 // "Global" properties
 object BuildProperties {
     const val name = "JetBrains Compose Plugin"
     const val group = "org.jetbrains.compose"
     const val website = "https://jetbrains.org/compose"
     const val vcs = "https://github.com/JetBrains/compose-jb"
-    val composeVersion: String
-        get() = System.getenv("COMPOSE_GRADLE_PLUGIN_COMPOSE_VERSION") ?: "0.1.0-SNAPSHOT"
-    val version: String
-        get() = System.getenv("COMPOSE_GRADLE_PLUGIN_VERSION") ?: composeVersion
+    fun composeVersion(project: Project): String =
+        project.findProperty("compose.version") as? String
+            ?: System.getenv("COMPOSE_GRADLE_PLUGIN_COMPOSE_VERSION")
+            ?: "0.1.0-SNAPSHOT"
+    fun deployVersion(project: Project): String = System.getenv("COMPOSE_GRADLE_PLUGIN_VERSION") ?: composeVersion(project)
 }

gradle-plugins/compose/build.gradle.kts

@@ -20,7 +20,7 @@ gradlePluginConfig {
 buildConfig {
     packageName = "org.jetbrains.compose"
     clsName = "ComposeBuildConfig"
-    buildConfigField("String", "composeVersion", BuildProperties.composeVersion)
+    buildConfigField("String", "composeVersion", BuildProperties.composeVersion(project))
 }
 
 val embedded by configurations.creating

gradle-plugins/gradle.properties

@@ -1,2 +1,4 @@
 org.gradle.parallel=true
 kotlin.code.style=official
+
+#compose.version=0.1.0-m1-build57