Add composeStabilityConfigurationPath option

slack-plugin/src/main/kotlin/slack/gradle/SlackExtension.kt

@@ -933,6 +933,12 @@ constructor(
         composeBundleAlias?.let { project.dependencies.add("implementation", it) }
       }
 
+      if (slackProperties.composeStabilityConfigurationPath.isPresent) {
+        extension.stabilityConfigurationFile.setDisallowChanges(
+          slackProperties.composeStabilityConfigurationPath
+        )
+      }
+
       // Because the Compose Compiler plugin auto applies common options for us, we need to know
       // about those options and _avoid_ setting them a second time
       val freeOptions = mutableListOf<String>()
@@ -978,7 +984,9 @@ constructor(
           }
 
           "stabilityConfigurationPath" -> {
-            extension.stabilityConfigurationFile.set(project.file(v))
+            error(
+              "Use the 'sgp.compose.stabilityConfigurationPath' Gradle property to specify a stability configuration path"
+            )
           }
 
           "traceMarkersEnabled" -> {

slack-plugin/src/main/kotlin/slack/gradle/SlackProperties.kt

@@ -18,6 +18,7 @@ package slack.gradle
 import java.io.File
 import java.util.Locale
 import org.gradle.api.Project
+import org.gradle.api.file.RegularFile
 import org.gradle.api.provider.Provider
 import org.jetbrains.kotlin.gradle.dsl.KotlinVersion
 import slack.gradle.anvil.AnvilMode
@@ -167,6 +168,13 @@ internal constructor(
         .map { value -> value.split(",").map { it.trim() } }
         .orElse(emptyList())
 
+  /** Relative path to a Compose stability configuration file from the _root_ project. */
+  public val composeStabilityConfigurationPath: Provider<RegularFile>
+    get() =
+      resolver.providerFor("sgp.compose.stabilityConfigurationPath").map {
+        project.rootProject.layout.projectDirectory.file(it)
+      }
+
   /**
    * When this property is present, the "internalRelease" build variant will have an application id
    * of "com.Slack.prototype", instead of "com.Slack.internal".