Add cache prefix support

README.md

@@ -19,6 +19,7 @@ This can be achieved with the following [configuration in the action](https://do
 
 ```yaml
 permissions:
+  actions: write # for caching state
   contents: write # only for delete-branch option
   issues: write
   pull-requests: write
@@ -97,6 +98,7 @@ Every argument is optional.
 | [ignore-issue-updates](#ignore-issue-updates)                       | Override [ignore-updates](#ignore-updates) for issues only                  |                       |
 | [ignore-pr-updates](#ignore-pr-updates)                             | Override [ignore-updates](#ignore-updates) for PRs only                     |                       |
 | [include-only-assigned](#include-only-assigned)                     | Process only assigned issues                                                | `false`               |
+| [cache-prefix](#cache-prefix)                                       | Add a prefix to the stored cache                                            |                       |
 
 ### List of output options
 
@@ -547,6 +549,11 @@ If set to `true`, only the issues or the pull requests with an assignee will be
 
 Default value: `false`
 
+#### cache-prefix
+
+Beneficial so the action has a more unique cahce key. Useful when calling this action multiple times, independent of each other.
+An example for usage would be closing all PRs with `x` label after 7 days in one action and closing all PRs except for `x` label after 10 days in another.
+
 ### Usage
 
 See also [action.yml](./action.yml) for a comprehensive list of all the options.

__tests__/constants/default-processor-options.ts

@@ -55,5 +55,6 @@ export const DefaultProcessorOptions: IIssuesProcessorOptions = Object.freeze({
   ignorePrUpdates: undefined,
   exemptDraftPr: false,
   closeIssueReason: 'not_planned',
-  includeOnlyAssigned: false
+  includeOnlyAssigned: false,
+  cachePrefix: ''
 });

action.yml

@@ -204,6 +204,10 @@ inputs:
     description: 'Only the issues or the pull requests with an assignee will be marked as stale automatically.'
     default: 'false'
     required: false
+  cache-prefix:
+    description: 'Add a prefix to the stored cache. Useful when using this action multiple times with different params.'
+    default: ''
+    required: false
 outputs:
   closed-issues-prs:
     description: 'List of all closed issues and pull requests.'

src/classes/issue.spec.ts

@@ -64,7 +64,8 @@ describe('Issue', (): void => {
       ignorePrUpdates: undefined,
       exemptDraftPr: false,
       closeIssueReason: '',
-      includeOnlyAssigned: false
+      includeOnlyAssigned: false,
+      cachePrefix: ''
     };
     issueInterface = {
       title: 'dummy-title',

src/classes/state/state-cache-storage.ts

@@ -6,6 +6,7 @@ import * as core from '@actions/core';
 import {context, getOctokit} from '@actions/github';
 import {retry as octokitRetry} from '@octokit/plugin-retry';
 import * as cache from '@actions/cache';
+import {IIssuesProcessorOptions} from '../../interfaces/issues-processor-options';
 
 const CACHE_KEY = '_state';
 const STATE_FILE = 'state.txt';
@@ -65,15 +66,26 @@ const resetCacheWithOctokit = async (cacheKey: string): Promise<void> => {
   }
 };
 export class StateCacheStorage implements IStateStorage {
+  /**
+   * @private don't mutate in the debug mode
+   */
+  private readonly statePrefix: string;
+
+  constructor(options: IIssuesProcessorOptions) {
+    this.statePrefix = options.cachePrefix;
+  }
+
   async save(serializedState: string): Promise<void> {
     const tmpDir = mkTempDir();
-    const filePath = path.join(tmpDir, STATE_FILE);
+    const stateFile = `${this.statePrefix}_${STATE_FILE}`;
+    const filePath = path.join(tmpDir, stateFile);
     fs.writeFileSync(filePath, serializedState);
 
     try {
-      const cacheExists = await checkIfCacheExists(CACHE_KEY);
+      const cacheKey = `${this.statePrefix}${CACHE_KEY}`;
+      const cacheExists = await checkIfCacheExists(cacheKey);
       if (cacheExists) {
-        await resetCacheWithOctokit(CACHE_KEY);
+        await resetCacheWithOctokit(cacheKey);
       }
       const fileSize = fs.statSync(filePath).size;
 
@@ -82,7 +94,7 @@ export class StateCacheStorage implements IStateStorage {
         return;
       }
 
-      await cache.saveCache([path.dirname(filePath)], CACHE_KEY);
+      await cache.saveCache([path.dirname(filePath)], cacheKey);
     } catch (error) {
       core.warning(
         `Saving the state was not successful due to "${
@@ -96,26 +108,28 @@ export class StateCacheStorage implements IStateStorage {
 
   async restore(): Promise<string> {
     const tmpDir = mkTempDir();
-    const filePath = path.join(tmpDir, STATE_FILE);
+    const stateFile = `${this.statePrefix}_${STATE_FILE}`;
+    const filePath = path.join(tmpDir, stateFile);
     unlinkSafely(filePath);
     try {
-      const cacheExists = await checkIfCacheExists(CACHE_KEY);
+      const cacheKey = `${this.statePrefix}${CACHE_KEY}`;
+      const cacheExists = await checkIfCacheExists(cacheKey);
       if (!cacheExists) {
         core.info(
           'The saved state was not found, the process starts from the first issue.'
         );
         return '';
       }
 
-      await cache.restoreCache([path.dirname(filePath)], CACHE_KEY);
+      await cache.restoreCache([path.dirname(filePath)], cacheKey);
 
       if (!fs.existsSync(filePath)) {
         core.warning(
           'Unknown error when unpacking the cache, the process starts from the first issue.'
         );
         return '';
       }
-      return fs.readFileSync(path.join(tmpDir, STATE_FILE), {
+      return fs.readFileSync(path.join(tmpDir, stateFile), {
         encoding: 'utf8'
       });
     } catch (error) {

src/enums/option.ts

@@ -48,5 +48,6 @@ export enum Option {
   IgnoreIssueUpdates = 'ignore-issue-updates',
   IgnorePrUpdates = 'ignore-pr-updates',
   ExemptDraftPr = 'exempt-draft-pr',
-  CloseIssueReason = 'close-issue-reason'
+  CloseIssueReason = 'close-issue-reason',
+  CachePrefix = 'cache-prefix'
 }

src/interfaces/issues-processor-options.ts

@@ -54,4 +54,5 @@ export interface IIssuesProcessorOptions {
   exemptDraftPr: boolean;
   closeIssueReason: string;
   includeOnlyAssigned: boolean;
+  cachePrefix: string;
 }

src/main.ts

@@ -123,7 +123,8 @@ function _getAndValidateArgs(): IIssuesProcessorOptions {
     ignorePrUpdates: _toOptionalBoolean('ignore-pr-updates'),
     exemptDraftPr: core.getInput('exempt-draft-pr') === 'true',
     closeIssueReason: core.getInput('close-issue-reason'),
-    includeOnlyAssigned: core.getInput('include-only-assigned') === 'true'
+    includeOnlyAssigned: core.getInput('include-only-assigned') === 'true',
+    cachePrefix: core.getInput('cache-prefix')
   };
 
   for (const numberInput of ['days-before-stale']) {

src/services/state.service.ts

@@ -4,6 +4,6 @@ import {IIssuesProcessorOptions} from '../interfaces/issues-processor-options';
 import {StateCacheStorage} from '../classes/state/state-cache-storage';
 
 export const getStateInstance = (options: IIssuesProcessorOptions): IState => {
-  const storage = new StateCacheStorage();
+  const storage = new StateCacheStorage(options);
   return new State(storage, options);
 };