Switch to mode setting so we can write, read, or both

action.yml

@@ -56,9 +56,9 @@ inputs:
   cache:
     description: 'Name of the build platform to cache dependencies. It can be "maven" or "gradle".'
     required: false
-  cache-is-read-only:
+  cache-mode:
-    description: 'Whether or not the build output should be cached. Default is true.'
+    description: 'Whether the cache should be read from pre-build, written to afterwards, or both'
-    default: true
+    default: both
   job-status:
     description: 'Workaround to pass job status to post job step. This variable is not intended for manual setting'
     default: ${{ job.status }}

src/cleanup-java.ts

@@ -23,8 +23,9 @@ async function removePrivateKeyFromKeychain() {
 async function saveCache() {
   const jobStatus = isJobStatusSuccess();
   const cache = core.getInput(constants.INPUT_CACHE);
-  const readOnlyCache = core.getInput(constants.INPUT_CACHE_READ_ONLY)
+  const cacheMode = core.getInput(constants.INPUT_CACHE_MODE)
-  return jobStatus && cache && !readOnlyCache ? save(cache) : Promise.resolve();
+  const updateCache = Boolean(cacheMode === "both" || cacheMode === "write")
+  return jobStatus && cache && updateCache ? save(cache) : Promise.resolve();
 }
 
 /**

src/constants.ts

@@ -17,7 +17,7 @@ export const INPUT_DEFAULT_GPG_PRIVATE_KEY = undefined;
 export const INPUT_DEFAULT_GPG_PASSPHRASE = 'GPG_PASSPHRASE';
 
 export const INPUT_CACHE = 'cache';
-export const INPUT_CACHE_READ_ONLY = "cache-is-read-only";
+export const INPUT_CACHE_MODE = "cache-mode";
 export const INPUT_JOB_STATUS = 'job-status';
 
 export const STATE_GPG_PRIVATE_KEY_FINGERPRINT = 'gpg-private-key-fingerprint';

src/setup-java.ts

@@ -42,7 +42,9 @@ async function run() {
     core.info(`##[add-matcher]${path.join(matchersPath, 'java.json')}`);
 
     await auth.configureAuthentication();
-    if (cache) {
+    const cacheMode = core.getInput(constants.INPUT_CACHE_MODE)
+    const restoreCache = Boolean(cacheMode === "both" || cacheMode === "read")
+    if (cache && restoreCache) {
       await restore(cache);
     }
   } catch (error) {