fix: incompatibility with the configuration cache

Author: mikewacker

src/main/groovy/com/avast/gradle/dockercompose/ComposeSettings.groovy

@@ -1,6 +1,7 @@
 package com.avast.gradle.dockercompose
 
 import groovy.transform.CompileStatic
+import groovy.transform.PackageScope
 import org.gradle.api.Project
 import org.gradle.api.Task
 import org.gradle.api.file.DirectoryProperty
@@ -226,6 +227,11 @@ abstract class ComposeSettings {
     }
 
     void exposeAsEnvironment(ProcessForkOptions task) {
+        exposeAsEnvironmentInternal(task, servicesInfos)
+    }
+
+    @PackageScope
+    void exposeAsEnvironmentInternal(ProcessForkOptions task, Map<String, ServiceInfo> servicesInfos) {
         servicesInfos.values().each { serviceInfo ->
             serviceInfo.containerInfos.each { instanceName, si ->
                 if (instanceName.endsWith('_1') || instanceName.endsWith('-1')) {
@@ -237,6 +243,11 @@ abstract class ComposeSettings {
     }
 
     void exposeAsSystemProperties(JavaForkOptions task) {
+        exposeAsSystemPropertiesInternal(task, servicesInfos)
+    }
+
+    @PackageScope
+    void exposeAsSystemPropertiesInternal(JavaForkOptions task, Map<String, ServiceInfo> servicesInfos) {
         servicesInfos.values().each { serviceInfo ->
             serviceInfo.containerInfos.each { instanceName, si ->
                 if(instanceName.endsWith('_1') || instanceName.endsWith('-1')) {

src/main/groovy/com/avast/gradle/dockercompose/TasksConfigurator.groovy

@@ -127,8 +127,16 @@ class TasksConfigurator {
         } else {
             upTask.configure { it.shouldRunAfter getTaskDependencies(task) }
         }
-        if (task instanceof ProcessForkOptions) task.doFirst { composeSettings.exposeAsEnvironment(task as ProcessForkOptions) }
-        if (task instanceof JavaForkOptions) task.doFirst { composeSettings.exposeAsSystemProperties(task as JavaForkOptions) }
+
+        // composeSettings.tasksConfigurator is null when the doFirst actions run with the configuration cache enabled.
+        def composeSettings = this.composeSettings
+        def servicesInfos = upTask.map { it.servicesInfos }
+        if (task instanceof ProcessForkOptions) task.doFirst {
+            composeSettings.exposeAsEnvironmentInternal(task as ProcessForkOptions, servicesInfos.get())
+        }
+        if (task instanceof JavaForkOptions) task.doFirst {
+            composeSettings.exposeAsSystemPropertiesInternal(task as JavaForkOptions, servicesInfos.get())
+        }
     }
 
     private Object getTaskDependencies(Task task) {