Add state

src/classes/exempt-draft-pull-request.ts

@@ -17,6 +17,8 @@ export class ExemptDraftPullRequest {
   }
 
   async shouldExemptDraftPullRequest(
+    // keep this for backward compatibility
+    // eslint-disable-next-line @typescript-eslint/no-unused-vars
     pullRequestCallback: () => Promise<IPullRequest | undefined | void>
   ): Promise<boolean> {
     if (this._issue.isPullRequest) {

src/classes/issue.spec.ts

@@ -71,6 +71,7 @@ describe('Issue', (): void => {
       number: 8,
       created_at: 'dummy-created-at',
       updated_at: 'dummy-updated-at',
+      draft: false,
       labels: [
         {
           name: 'dummy-name'

src/classes/issue.ts

@@ -34,7 +34,7 @@ export class Issue implements IIssue {
     this.number = issue.number;
     this.created_at = issue.created_at;
     this.updated_at = issue.updated_at;
-    this.draft = issue.draft || false;
+    this.draft = Boolean(issue.draft);
     this.labels = mapLabels(issue.labels);
     this.pull_request = issue.pull_request;
     this.state = issue.state;

src/classes/issues-processor.ts

@@ -26,6 +26,7 @@ import {Statistics} from './statistics';
 import {LoggerService} from '../services/logger.service';
 import {OctokitIssue} from '../interfaces/issue';
 import {retry} from '@octokit/plugin-retry';
+import {IState} from '../interfaces/state';
 
 /***
  * Handle processing of issues for staleness/closure.
@@ -72,9 +73,11 @@ export class IssuesProcessor {
   readonly addedCloseCommentIssues: Issue[] = [];
   readonly statistics: Statistics | undefined;
   private readonly _logger: Logger = new Logger();
+  private readonly state: IState;
 
-  constructor(options: IIssuesProcessorOptions) {
+  constructor(options: IIssuesProcessorOptions, state: IState) {
     this.options = options;
+    this.state = state;
     this.client = getOctokit(this.options.repoToken, undefined, retry);
     this.operations = new StaleOperations(this.options);
 
@@ -110,6 +113,8 @@ export class IssuesProcessor {
         ?.setOperationsCount(this.operations.getConsumedOperationsCount())
         .logStats();
 
+      this.state.reset();
+
       return this.operations.getRemainingOperationsCount();
     } else {
       this._logger.info(
@@ -196,6 +201,15 @@ export class IssuesProcessor {
       )}`
     );
 
+    if (this.state.isIssueProcessed(issue)) {
+      issueLogger.info(
+        '           $$type skipped due being processed during the previous run'
+      );
+      return;
+    }
+
+    this.state.addIssueToProcessed(issue);
+
     // calculate string based messages for this issue
     const staleMessage: string = issue.isPullRequest
       ? this.options.stalePrMessage

src/classes/state.ts

@@ -0,0 +1,69 @@
+import {Issue} from './issue';
+import {IState} from '../interfaces/state';
+import os from 'os';
+import crypto from 'crypto';
+import fs from 'fs';
+import path from 'path';
+import artifact from '@actions/artifact';
+
+type IssueID = number;
+export class State implements IState {
+  private processedIssuesIDs: Set<IssueID>;
+  constructor() {
+    this.processedIssuesIDs = new Set();
+  }
+
+  isIssueProcessed(issue: Issue) {
+    return this.processedIssuesIDs.has(issue.number);
+  }
+
+  addIssueToProcessed(issue: Issue) {
+    this.processedIssuesIDs.add(issue.number);
+  }
+
+  reset() {
+    this.processedIssuesIDs.clear();
+  }
+
+  private static readonly ARTIFACT_NAME = '_stale_state';
+  async persist() {
+    const serialized = Array.from(this.processedIssuesIDs).join('|');
+
+    const tmpDir = os.tmpdir();
+    const file = crypto.randomBytes(8).readBigUInt64LE(0).toString();
+    fs.writeFileSync(path.join(tmpDir, file), serialized);
+
+    const artifactClient = artifact.create();
+    // TODO: handle errors
+    await artifactClient.uploadArtifact(State.ARTIFACT_NAME, [file], tmpDir);
+  }
+
+  async rehydrate() {
+    this.reset();
+
+    const tmpDir = os.tmpdir();
+    const artifactClient = artifact.create();
+    const downloadResponse = await artifactClient.downloadArtifact(
+      State.ARTIFACT_NAME,
+      tmpDir
+    );
+
+    const downloadedFiles = fs.readdirSync(downloadResponse.downloadPath);
+    if (downloadedFiles.length === 0) {
+      // TODO: handle error
+    }
+    const serialized = fs.readFileSync(
+      path.join(downloadResponse.downloadPath, downloadedFiles[0]),
+      {encoding: 'utf8'}
+    );
+
+    if (serialized.length === 0) return;
+
+    const issueIDs = serialized
+      .split('|')
+      .map(parseInt)
+      .filter(i => !isNaN(i));
+
+    this.processedIssuesIDs = new Set(issueIDs);
+  }
+}