Adjust IDE plugin compatibility range

idea-plugin/build.gradle.kts

@@ -18,15 +18,14 @@ repositories {
 
 intellij {
     pluginName = "Compose for Desktop IDE Support"
-    type = "IC"
+    type = properties("platform.type")
-    downloadSources = true
+    version = properties("platform.version")
-    updateSinceUntilBuild = true
+    downloadSources = properties("platform.download.sources").toBoolean()
-    version = "203.7717.56"
 
     setPlugins(
         "java",
         "com.intellij.gradle",
-        "org.jetbrains.kotlin:203-1.4.32-release-IJ7148.5"
+        "org.jetbrains.kotlin"
     )
 }
 
@@ -47,6 +46,16 @@ tasks {
 
     publishPlugin {
         token(System.getenv("IDE_PLUGIN_PUBLISH_TOKEN"))
-        channels("Alpha")
+        channels(properties("plugin.channels"))
+    }
+
+    patchPluginXml {
+        sinceBuild(properties("plugin.since.build"))
+        untilBuild(properties("plugin.until.build"))
+    }
+
+    runPluginVerifier {
+        ideVersions(properties("plugin.verifier.ide.versions"))
+        downloadDirectory("${project.buildDir}/pluginVerifier/ides")
     }
 }

idea-plugin/gradle.properties

@@ -3,3 +3,12 @@
 kotlin.stdlib.default.dependency = false
 
 deploy.version=0.1-SNAPSHOT
+
+plugin.channels=alpha
+plugin.since.build=203
+plugin.until.build=211.*
+plugin.verifier.ide.versions=2020.3.2, 2021.1
+
+platform.type=IC
+platform.version=2020.3.2
+platform.download.sources=true