Only stop Gradle Daemons when saving Gradle User Home state

Fixes #341

src/caches.ts

@@ -1,6 +1,7 @@
 import * as core from '@actions/core'
 import {isCacheDisabled, isCacheReadOnly, isCacheWriteOnly} from './cache-utils'
 import {CacheListener} from './cache-reporting'
+import {DaemonController} from './daemon-controller'
 import {GradleStateCache} from './cache-base'
 
 const CACHE_RESTORED_VAR = 'GRADLE_BUILD_ACTION_CACHE_RESTORED'
@@ -45,7 +46,11 @@ export async function restore(gradleUserHome: string, cacheListener: CacheListen
     })
 }
 
-export async function save(gradleUserHome: string, cacheListener: CacheListener): Promise<void> {
+export async function save(
+    gradleUserHome: string,
+    cacheListener: CacheListener,
+    daemonController: DaemonController
+): Promise<void> {
     if (isCacheDisabled()) {
         core.info('Cache is disabled: will not save state for later builds.')
         return
@@ -62,6 +67,8 @@ export async function save(gradleUserHome: string, cacheListener: CacheListener)
         return
     }
 
+    await daemonController.stopAllDaemons()
+
     await core.group('Caching Gradle state', async () => {
         return new GradleStateCache(gradleUserHome).save(cacheListener)
     })

src/daemon-controller.ts

@@ -13,7 +13,7 @@ export class DaemonController {
     }
 
     async stopAllDaemons(): Promise<void> {
-        core.info('Stopping all Gradle daemons')
+        core.info('Stopping all Gradle daemons before saving Gradle User Home state')
 
         const executions: Promise<number>[] = []
         const args = ['--stop']

src/setup-gradle.ts

@@ -59,8 +59,7 @@ export async function complete(): Promise<void> {
     const cacheListener: CacheListener = CacheListener.rehydrate(core.getState(CACHE_LISTENER))
     const daemonController = new DaemonController(buildResults)
 
-    await daemonController.stopAllDaemons()
-    await caches.save(gradleUserHome, cacheListener)
+    await caches.save(gradleUserHome, cacheListener, daemonController)
 
     if (shouldGenerateJobSummary()) {
         await writeJobSummary(buildResults, cacheListener)