Fix main entrypoint in action yml

.eslintrc.json

@@ -23,7 +23,7 @@
       "@typescript-eslint/generic-type-naming": ["error", "^[A-Z][A-Za-z]*$"],
       "@typescript-eslint/no-array-constructor": "error",
       "@typescript-eslint/no-empty-interface": "error",
-      "@typescript-eslint/no-explicit-any": "off",
+      "@typescript-eslint/no-explicit-any": "error",
       "@typescript-eslint/no-extraneous-class": "error",
       "@typescript-eslint/no-for-in-array": "error",
       "@typescript-eslint/no-inferrable-types": "error",
@@ -45,7 +45,7 @@
       "@typescript-eslint/restrict-plus-operands": "error",
       "semi": "off",
       "@typescript-eslint/type-annotation-spacing": "error",
-      "@typescript-eslint/unbound-method": "off"
+      "@typescript-eslint/unbound-method": "error"
     },
     "env": {
       "node": true,

.github/workflows/test.yml

@@ -1,26 +0,0 @@
-name: "Build"
-on: # rebuild any PRs and main branch changes
-  pull_request:
-  push:
-    branches:
-      - master
-      - 'releases/*'
-
-jobs:
-  build: # make sure build/ci work properly
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v2
-    - run: |
-        npm install
-        npm run all
-  test: # make sure the action works on a clean machine without building
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v2
-    - uses: ./
-      with:
-        repo-token: ${{ secrets.GITHUB_TOKEN }}
-        stale-issue-message: 'This issue is stale'
-        stale-pr-message: 'This PR is stale'
-        debug-only: true

README.md

@@ -2,23 +2,6 @@
 
 Warns and then closes issues and PRs that have had no activity for a specified amount of time.
 
-### Building and testing
-
-Install the dependencies  
-```bash
-$ npm install
-```
-
-Build the typescript and package it for distribution
-```bash
-$ npm run build && npm run pack
-```
-
-Run the tests :heavy_check_mark:  
-```bash
-$ npm test
-```
-
 ### Usage
 
 See [action.yml](./action.yml) For comprehensive list of options.
@@ -77,11 +60,7 @@ jobs:
         stale-issue-message: 'Stale issue message'
         stale-pr-message: 'Stale issue message'
         stale-issue-label: 'no-issue-activity'
-        exempt-issue-labels: 'awaiting-approval,work-in-progress'
+        exempt-issue-label: 'awaiting-approval'
         stale-pr-label: 'no-pr-activity'
-        exempt-pr-labels: 'awaiting-approval,work-in-progress'
+        exempt-pr-label: 'awaiting-approval'
 ```
-
-### Debugging
-
-To see debug ouput from this action, you must set the secret `ACTIONS_STEP_DEBUG` to `true` in your repository. You can run this action in debug only mode (no actions will be taken on your issues) by passing `debug-only` `true` as an argument to the action.

__tests__/main.test.ts

@@ -1,202 +1,3 @@
-import * as core from '@actions/core';
+describe('TODO - Add a test suite', () => {
-import * as github from '@actions/github';
+  it('TODO - Add a test', async () => {});
-import {Octokit} from '@octokit/rest';
-
-import {
-  IssueProcessor,
-  Issue,
-  Label,
-  IssueProcessorOptions
-} from '../src/IssueProcessor';
-
-function generateIssue(
-  id: number,
-  title: string,
-  updatedAt: string,
-  isPullRequest: boolean = false,
-  labels: string[] = []
-): Issue {
-  return {
-    number: id,
-    labels: labels.map(l => {
-      return {name: l};
-    }),
-    title: title,
-    updated_at: updatedAt,
-    pull_request: isPullRequest ? {} : null
-  };
-}
-
-const DefaultProcessorOptions: IssueProcessorOptions = {
-  repoToken: 'none',
-  staleIssueMessage: 'This issue is stale',
-  stalePrMessage: 'This PR is stale',
-  daysBeforeStale: 1,
-  daysBeforeClose: 1,
-  staleIssueLabel: 'Stale',
-  exemptIssueLabels: '',
-  stalePrLabel: 'Stale',
-  exemptPrLabels: '',
-  onlyLabels: '',
-  operationsPerRun: 100,
-  debugOnly: true
-};
-
-test('empty issue list results in 1 operation', async () => {
-  const processor = new IssueProcessor(DefaultProcessorOptions, async () => []);
-
-  // process our fake issue list
-  const operationsLeft = await processor.processIssues(1);
-
-  // processing an empty issue list should result in 1 operation
-  expect(operationsLeft).toEqual(99);
-});
-
-test('processing an issue with no label will make it stale', async () => {
-  const TestIssueList: Issue[] = [
-    generateIssue(1, 'My first issue', '2020-01-01T17:00:00Z')
-  ];
-
-  const processor = new IssueProcessor(DefaultProcessorOptions, async p =>
-    p == 1 ? TestIssueList : []
-  );
-
-  // process our fake issue list
-  await processor.processIssues(1);
-
-  expect(processor.staleIssues.length).toEqual(1);
-  expect(processor.closedIssues.length).toEqual(0);
-});
-
-test('processing a stale issue will close it', async () => {
-  const TestIssueList: Issue[] = [
-    generateIssue(1, 'My first issue', '2020-01-01T17:00:00Z', false, ['Stale'])
-  ];
-
-  const processor = new IssueProcessor(DefaultProcessorOptions, async p =>
-    p == 1 ? TestIssueList : []
-  );
-
-  // process our fake issue list
-  await processor.processIssues(1);
-
-  expect(processor.staleIssues.length).toEqual(0);
-  expect(processor.closedIssues.length).toEqual(1);
-});
-
-test('processing a stale PR will close it', async () => {
-  const TestIssueList: Issue[] = [
-    generateIssue(1, 'My first PR', '2020-01-01T17:00:00Z', true, ['Stale'])
-  ];
-
-  const processor = new IssueProcessor(DefaultProcessorOptions, async p =>
-    p == 1 ? TestIssueList : []
-  );
-
-  // process our fake issue list
-  await processor.processIssues(1);
-
-  expect(processor.staleIssues.length).toEqual(0);
-  expect(processor.closedIssues.length).toEqual(1);
-});
-
-test('exempt issue labels will not be marked stale', async () => {
-  const TestIssueList: Issue[] = [
-    generateIssue(1, 'My first issue', '2020-01-01T17:00:00Z', false, [
-      'Exempt'
-    ])
-  ];
-
-  let opts = DefaultProcessorOptions;
-  opts.exemptIssueLabels = 'Exempt';
-
-  const processor = new IssueProcessor(DefaultProcessorOptions, async p =>
-    p == 1 ? TestIssueList : []
-  );
-
-  // process our fake issue list
-  await processor.processIssues(1);
-
-  expect(processor.staleIssues.length).toEqual(0);
-  expect(processor.closedIssues.length).toEqual(0);
-});
-
-test('exempt issue labels will not be marked stale (multi issue label with spaces)', async () => {
-  const TestIssueList: Issue[] = [
-    generateIssue(1, 'My first issue', '2020-01-01T17:00:00Z', false, ['Cool'])
-  ];
-
-  let opts = DefaultProcessorOptions;
-  opts.exemptIssueLabels = 'Exempt, Cool, None';
-
-  const processor = new IssueProcessor(DefaultProcessorOptions, async p =>
-    p == 1 ? TestIssueList : []
-  );
-
-  // process our fake issue list
-  await processor.processIssues(1);
-
-  expect(processor.staleIssues.length).toEqual(0);
-  expect(processor.closedIssues.length).toEqual(0);
-});
-
-test('exempt issue labels will not be marked stale (multi issue label)', async () => {
-  const TestIssueList: Issue[] = [
-    generateIssue(1, 'My first issue', '2020-01-01T17:00:00Z', false, ['Cool'])
-  ];
-
-  let opts = DefaultProcessorOptions;
-  opts.exemptIssueLabels = 'Exempt,Cool,None';
-
-  const processor = new IssueProcessor(DefaultProcessorOptions, async p =>
-    p == 1 ? TestIssueList : []
-  );
-
-  // process our fake issue list
-  await processor.processIssues(1);
-
-  expect(processor.staleIssues.length).toEqual(0);
-  expect(processor.closedIssues.length).toEqual(0);
-});
-
-test('exempt pr labels will not be marked stale', async () => {
-  const TestIssueList: Issue[] = [
-    generateIssue(1, 'My first issue', '2020-01-01T17:00:00Z', false, ['Cool']),
-    generateIssue(2, 'My first PR', '2020-01-01T17:00:00Z', true, ['Cool']),
-    generateIssue(3, 'Another issue', '2020-01-01T17:00:00Z', false)
-  ];
-
-  let opts = DefaultProcessorOptions;
-  opts.exemptIssueLabels = 'Cool';
-
-  const processor = new IssueProcessor(DefaultProcessorOptions, async p =>
-    p == 1 ? TestIssueList : []
-  );
-
-  // process our fake issue list
-  await processor.processIssues(1);
-
-  expect(processor.staleIssues.length).toEqual(2); // PR should get processed even though it has an exempt **issue** label
-});
-
-test('stale issues should not be closed if days is set to -1', async () => {
-  const TestIssueList: Issue[] = [
-    generateIssue(1, 'My first issue', '2020-01-01T17:00:00Z', false, [
-      'Stale'
-    ]),
-    generateIssue(2, 'My first PR', '2020-01-01T17:00:00Z', true, ['Stale']),
-    generateIssue(3, 'Another issue', '2020-01-01T17:00:00Z', false, ['Stale'])
-  ];
-
-  let opts = DefaultProcessorOptions;
-  opts.daysBeforeClose = -1;
-
-  const processor = new IssueProcessor(DefaultProcessorOptions, async p =>
-    p == 1 ? TestIssueList : []
-  );
-
-  // process our fake issue list
-  await processor.processIssues(1);
-
-  expect(processor.closedIssues.length).toEqual(0);
 });

action.yml

@@ -18,24 +18,19 @@ inputs:
   stale-issue-label:
     description: 'The label to apply when an issue is stale.'
     default: 'Stale'
-  exempt-issue-labels:
+  exempt-issue-label:
-    description: 'The labels to apply when an issue is exempt from being marked stale. Separate multiple labels with commas (eg. "label1,label2")'
+    description: 'The label to apply when an issue is exempt from being marked stale.'
-    default: ''
   stale-pr-label:
     description: 'The label to apply when a pull request is stale.'
     default: 'Stale'
-  exempt-pr-labels:
+  exempt-pr-label:
-    description: 'The labels to apply when a pull request is exempt from being marked stale. Separate multiple labels with commas (eg. "label1,label2")'
+    description: 'The label to apply when a pull request is exempt from being marked stale.'
-    default: ''
   only-labels:
     description: 'Only issues or pull requests with all of these labels are checked if stale. Defaults to `[]` (disabled) and can be a comma-separated list of labels.'
     default: ''
   operations-per-run:
     description: 'The maximum number of operations per run, used to control rate limiting.'
     default: 30
-  debug-only:
-    description: 'Run the processor in debug mode without actually performing any operations on live issues.'
-    default: false
 runs:
   using: 'node12'
   main: 'dist/index.js'

package-lock.json

@@ -10,19 +10,54 @@
       "integrity": "sha512-Wp4xnyokakM45Uuj4WLUxdsa8fJjKVl1fDTsPbTEcTcuu0Nb26IPQbOtjmnfaCPGcaoPOOqId8H9NapZ8gii4w=="
     },
     "@actions/github": {
-      "version": "2.2.0",
+      "version": "2.1.1",
-      "resolved": "https://registry.npmjs.org/@actions/github/-/github-2.2.0.tgz",
+      "resolved": "https://registry.npmjs.org/@actions/github/-/github-2.1.1.tgz",
-      "integrity": "sha512-9UAZqn8ywdR70n3GwVle4N8ALosQs4z50N7XMXrSTUVOmVpaBC5kE3TRTT7qQdi3OaQV24mjGuJZsHUmhD+ZXw==",
+      "integrity": "sha512-kAgTGUx7yf5KQCndVeHSwCNZuDBvPyxm5xKTswW2lofugeuC1AZX73nUUVDNaysnM9aKFMHv9YCdVJbg7syEyA==",
       "requires": {
         "@actions/http-client": "^1.0.3",
         "@octokit/graphql": "^4.3.1",
         "@octokit/rest": "^16.43.1"
+      },
+      "dependencies": {
+        "@octokit/request-error": {
+          "version": "1.2.1",
+          "resolved": "https://registry.npmjs.org/@octokit/request-error/-/request-error-1.2.1.tgz",
+          "integrity": "sha512-+6yDyk1EES6WK+l3viRDElw96MvwfJxCt45GvmjDUKWjYIb3PJZQkq3i46TwGwoPD4h8NmTrENmtyA1FwbmhRA==",
+          "requires": {
+            "@octokit/types": "^2.0.0",
+            "deprecation": "^2.0.0",
+            "once": "^1.4.0"
+          }
+        },
+        "@octokit/rest": {
+          "version": "16.43.1",
+          "resolved": "https://registry.npmjs.org/@octokit/rest/-/rest-16.43.1.tgz",
+          "integrity": "sha512-gfFKwRT/wFxq5qlNjnW2dh+qh74XgTQ2B179UX5K1HYCluioWj8Ndbgqw2PVqa1NnVJkGHp2ovMpVn/DImlmkw==",
+          "requires": {
+            "@octokit/auth-token": "^2.4.0",
+            "@octokit/plugin-paginate-rest": "^1.1.1",
+            "@octokit/plugin-request-log": "^1.0.0",
+            "@octokit/plugin-rest-endpoint-methods": "2.4.0",
+            "@octokit/request": "^5.2.0",
+            "@octokit/request-error": "^1.0.2",
+            "atob-lite": "^2.0.0",
+            "before-after-hook": "^2.0.0",
+            "btoa-lite": "^1.0.0",
+            "deprecation": "^2.0.0",
+            "lodash.get": "^4.4.2",
+            "lodash.set": "^4.3.2",
+            "lodash.uniq": "^4.5.0",
+            "octokit-pagination-methods": "^1.1.0",
+            "once": "^1.4.0",
+            "universal-user-agent": "^4.0.0"
+          }
+        }
       }
     },
     "@actions/http-client": {
-      "version": "1.0.8",
+      "version": "1.0.7",
-      "resolved": "https://registry.npmjs.org/@actions/http-client/-/http-client-1.0.8.tgz",
+      "resolved": "https://registry.npmjs.org/@actions/http-client/-/http-client-1.0.7.tgz",
-      "integrity": "sha512-G4JjJ6f9Hb3Zvejj+ewLLKLf99ZC+9v+yCxoYf9vSyH+WkzPLB2LuUtRMGNkooMqdugGBFStIKXOuvH1W+EctA==",
+      "integrity": "sha512-PY3ys/XH5WMekkHyZhYSa/scYvlE5T/TV/T++vABHuY5ZRgtiBZkn2L2tV5Pv/xDCl59lSZb9WwRuWExDyAsSg==",
       "requires": {
         "tunnel": "0.0.6"
       }
@@ -522,23 +557,13 @@
       }
     },
     "@octokit/graphql": {
-      "version": "4.4.0",
+      "version": "4.3.1",
-      "resolved": "https://registry.npmjs.org/@octokit/graphql/-/graphql-4.4.0.tgz",
+      "resolved": "https://registry.npmjs.org/@octokit/graphql/-/graphql-4.3.1.tgz",
-      "integrity": "sha512-Du3hAaSROQ8EatmYoSAJjzAz3t79t9Opj/WY1zUgxVUGfIKn0AEjg+hlOLscF6fv6i/4y/CeUvsWgIfwMkTccw==",
+      "integrity": "sha512-hCdTjfvrK+ilU2keAdqNBWOk+gm1kai1ZcdjRfB30oA3/T6n53UVJb7w0L5cR3/rhU91xT3HSqCd+qbvH06yxA==",
       "requires": {
         "@octokit/request": "^5.3.0",
         "@octokit/types": "^2.0.0",
-        "universal-user-agent": "^5.0.0"
+        "universal-user-agent": "^4.0.0"
-      },
-      "dependencies": {
-        "universal-user-agent": {
-          "version": "5.0.0",
-          "resolved": "https://registry.npmjs.org/universal-user-agent/-/universal-user-agent-5.0.0.tgz",
-          "integrity": "sha512-B5TPtzZleXyPrUMKCpEHFmVhMN6EhmJYjG5PQna9s7mXeSqGTLap4OpqLl5FCEFUI3UBmllkETwKf/db66Y54Q==",
-          "requires": {
-            "os-name": "^3.1.0"
-          }
-        }
       }
     },
     "@octokit/plugin-paginate-rest": {

package.json

@@ -26,7 +26,7 @@
   "license": "MIT",
   "dependencies": {
     "@actions/core": "^1.2.3",
-    "@actions/github": "^2.2.0",
+    "@actions/github": "^2.1.1",
     "@octokit/rest": "^16.43.1",
     "semver": "^6.1.1"
   },

src/IssueProcessor.ts

@@ -1,230 +0,0 @@
-import * as core from '@actions/core';
-import * as github from '@actions/github';
-import {Octokit} from '@octokit/rest';
-
-type OcotoKitIssueList = Octokit.Response<Octokit.IssuesListForRepoResponse>;
-
-export interface Issue {
-  title: string;
-  number: number;
-  updated_at: string;
-  labels: Label[];
-  pull_request: any;
-}
-
-export interface Label {
-  name: string;
-}
-
-export interface IssueProcessorOptions {
-  repoToken: string;
-  staleIssueMessage: string;
-  stalePrMessage: string;
-  daysBeforeStale: number;
-  daysBeforeClose: number;
-  staleIssueLabel: string;
-  exemptIssueLabels: string;
-  stalePrLabel: string;
-  exemptPrLabels: string;
-  onlyLabels: string;
-  operationsPerRun: number;
-  debugOnly: boolean;
-}
-
-/***
- * Handle processing of issues for staleness/closure.
- */
-export class IssueProcessor {
-  readonly client: github.GitHub;
-  readonly options: IssueProcessorOptions;
-  private operationsLeft: number = 0;
-
-  readonly staleIssues: Issue[] = [];
-  readonly closedIssues: Issue[] = [];
-
-  constructor(
-    options: IssueProcessorOptions,
-    getIssues?: (page: number) => Promise<Issue[]>
-  ) {
-    this.options = options;
-    this.operationsLeft = options.operationsPerRun;
-    this.client = new github.GitHub(options.repoToken);
-
-    if (getIssues) {
-      this.getIssues = getIssues;
-    }
-
-    if (this.options.debugOnly) {
-      core.warning(
-        'Executing in debug mode. Debug output will be written but no issues will be processed.'
-      );
-    }
-  }
-
-  async processIssues(page: number = 1): Promise<number> {
-    if (this.operationsLeft <= 0) {
-      core.warning('Reached max number of operations to process. Exiting.');
-      return 0;
-    }
-
-    // get the next batch of issues
-    const issues: Issue[] = await this.getIssues(page);
-    this.operationsLeft -= 1;
-
-    if (issues.length <= 0) {
-      core.debug('No more issues found to process. Exiting.');
-      return this.operationsLeft;
-    }
-
-    for (const issue of issues.values()) {
-      const isPr = !!issue.pull_request;
-
-      core.debug(
-        `Found issue: issue #${issue.number} - ${issue.title} last updated ${issue.updated_at} (is pr? ${isPr})`
-      );
-
-      // calculate string based messages for this issue
-      const staleMessage: string = isPr
-        ? this.options.stalePrMessage
-        : this.options.staleIssueMessage;
-      const staleLabel: string = isPr
-        ? this.options.stalePrLabel
-        : this.options.staleIssueLabel;
-      const exemptLabels = IssueProcessor.parseCommaSeparatedString(
-        isPr ? this.options.exemptPrLabels : this.options.exemptIssueLabels
-      );
-      const issueType: string = isPr ? 'pr' : 'issue';
-
-      if (!staleMessage) {
-        core.debug(`Skipping ${issueType} due to empty stale message`);
-        continue;
-      }
-
-      if (
-        exemptLabels.some((exemptLabel: string) =>
-          IssueProcessor.isLabeled(issue, exemptLabel)
-        )
-      ) {
-        core.debug(`Skipping ${issueType} because it has an exempt label`);
-        continue; // don't process exempt issues
-      }
-
-      if (IssueProcessor.isLabeled(issue, staleLabel)) {
-        core.debug(`Found a stale ${issueType}`);
-        if (
-          this.options.daysBeforeClose >= 0 &&
-          IssueProcessor.wasLastUpdatedBefore(
-            issue,
-            this.options.daysBeforeClose
-          )
-        ) {
-          core.debug(
-            `Closing ${issueType} because it was last updated on ${issue.updated_at}`
-          );
-          await this.closeIssue(issue);
-          this.operationsLeft -= 1;
-        } else {
-          core.debug(
-            `Ignoring stale ${issueType} because it was updated recenlty`
-          );
-        }
-      } else if (
-        IssueProcessor.wasLastUpdatedBefore(issue, this.options.daysBeforeStale)
-      ) {
-        core.debug(
-          `Marking ${issueType} stale because it was last updated on ${issue.updated_at}`
-        );
-        await this.markStale(issue, staleMessage, staleLabel);
-        this.operationsLeft -= 2;
-      }
-    }
-
-    // do the next batch
-    return this.processIssues(page + 1);
-  }
-
-  // grab issues from github in baches of 100
-  private async getIssues(page: number): Promise<Issue[]> {
-    const issueResult: OcotoKitIssueList = await this.client.issues.listForRepo(
-      {
-        owner: github.context.repo.owner,
-        repo: github.context.repo.repo,
-        state: 'open',
-        labels: this.options.onlyLabels,
-        per_page: 100,
-        page
-      }
-    );
-
-    return issueResult.data;
-  }
-
-  // Mark an issue as stale with a comment and a label
-  private async markStale(
-    issue: Issue,
-    staleMessage: string,
-    staleLabel: string
-  ): Promise<void> {
-    core.debug(`Marking issue #${issue.number} - ${issue.title} as stale`);
-
-    this.staleIssues.push(issue);
-
-    if (this.options.debugOnly) {
-      return;
-    }
-
-    await this.client.issues.createComment({
-      owner: github.context.repo.owner,
-      repo: github.context.repo.repo,
-      issue_number: issue.number,
-      body: staleMessage
-    });
-
-    await this.client.issues.addLabels({
-      owner: github.context.repo.owner,
-      repo: github.context.repo.repo,
-      issue_number: issue.number,
-      labels: [staleLabel]
-    });
-  }
-
-  /// Close an issue based on staleness
-  private async closeIssue(issue: Issue): Promise<void> {
-    core.debug(
-      `Closing issue #${issue.number} - ${issue.title} for being stale`
-    );
-
-    this.closedIssues.push(issue);
-
-    if (this.options.debugOnly) {
-      return;
-    }
-
-    await this.client.issues.update({
-      owner: github.context.repo.owner,
-      repo: github.context.repo.repo,
-      issue_number: issue.number,
-      state: 'closed'
-    });
-  }
-
-  private static isLabeled(issue: Issue, label: string): boolean {
-    const labelComparer: (l: Label) => boolean = l =>
-      label.localeCompare(l.name, undefined, {sensitivity: 'accent'}) === 0;
-    return issue.labels.filter(labelComparer).length > 0;
-  }
-
-  private static wasLastUpdatedBefore(issue: Issue, num_days: number): boolean {
-    const daysInMillis = 1000 * 60 * 60 * 24 * num_days;
-    const millisSinceLastUpdated =
-      new Date().getTime() - new Date(issue.updated_at).getTime();
-    return millisSinceLastUpdated >= daysInMillis;
-  }
-
-  private static parseCommaSeparatedString(s: string): string[] {
-    // String.prototype.split defaults to [''] when called on an empty string
-    // In this case, we'd prefer to just return an empty array indicating no labels
-    if (!s.length) return [];
-    return s.split(',').map(l => l.trim());
-  }
-}

src/main.ts

@@ -1,19 +1,155 @@
 import * as core from '@actions/core';
-import {IssueProcessor, IssueProcessorOptions} from './IssueProcessor';
+import * as github from '@actions/github';
+import {Octokit} from '@octokit/rest';
+
+type Issue = Octokit.IssuesListForRepoResponseItem;
+type IssueLabel = Octokit.IssuesListForRepoResponseItemLabelsItem;
+
+interface Args {
+  repoToken: string;
+  staleIssueMessage: string;
+  stalePrMessage: string;
+  daysBeforeStale: number;
+  daysBeforeClose: number;
+  staleIssueLabel: string;
+  exemptIssueLabel: string;
+  stalePrLabel: string;
+  exemptPrLabel: string;
+  onlyLabels: string;
+  operationsPerRun: number;
+}
 
 async function run(): Promise<void> {
   try {
     const args = getAndValidateArgs();
 
-    const processor: IssueProcessor = new IssueProcessor(args);
+    const client = new github.GitHub(args.repoToken);
-    await processor.processIssues();
+    await processIssues(client, args, args.operationsPerRun);
   } catch (error) {
     core.error(error);
     core.setFailed(error.message);
   }
 }
 
-function getAndValidateArgs(): IssueProcessorOptions {
+async function processIssues(
+  client: github.GitHub,
+  args: Args,
+  operationsLeft: number,
+  page: number = 1
+): Promise<number> {
+  const issues = await client.issues.listForRepo({
+    owner: github.context.repo.owner,
+    repo: github.context.repo.repo,
+    state: 'open',
+    labels: args.onlyLabels,
+    per_page: 100,
+    page
+  });
+
+  operationsLeft -= 1;
+
+  if (issues.data.length === 0 || operationsLeft === 0) {
+    return operationsLeft;
+  }
+
+  for (const issue of issues.data.values()) {
+    core.debug(`found issue: ${issue.title} last updated ${issue.updated_at}`);
+    const isPr = !!issue.pull_request;
+
+    const staleMessage = isPr ? args.stalePrMessage : args.staleIssueMessage;
+    if (!staleMessage) {
+      core.debug(`skipping ${isPr ? 'pr' : 'issue'} due to empty message`);
+      continue;
+    }
+
+    const staleLabel = isPr ? args.stalePrLabel : args.staleIssueLabel;
+    const exemptLabel = isPr ? args.exemptPrLabel : args.exemptIssueLabel;
+
+    if (exemptLabel && isLabeled(issue, exemptLabel)) {
+      continue;
+    } else if (isLabeled(issue, staleLabel)) {
+      if (
+        args.daysBeforeClose >= 0 &&
+        wasLastUpdatedBefore(issue, args.daysBeforeClose)
+      ) {
+        operationsLeft -= await closeIssue(client, issue);
+      } else {
+        continue;
+      }
+    } else if (wasLastUpdatedBefore(issue, args.daysBeforeStale)) {
+      operationsLeft -= await markStale(
+        client,
+        issue,
+        staleMessage,
+        staleLabel
+      );
+    }
+
+    if (operationsLeft <= 0) {
+      core.warning(
+        `performed ${args.operationsPerRun} operations, exiting to avoid rate limit`
+      );
+      return 0;
+    }
+  }
+  return await processIssues(client, args, operationsLeft, page + 1);
+}
+
+function isLabeled(issue: Issue, label: string): boolean {
+  const labelComparer: (l: IssueLabel) => boolean = l =>
+    label.localeCompare(l.name, undefined, {sensitivity: 'accent'}) === 0;
+  return issue.labels.filter(labelComparer).length > 0;
+}
+
+function wasLastUpdatedBefore(issue: Issue, num_days: number): boolean {
+  const daysInMillis = 1000 * 60 * 60 * 24 * num_days;
+  const millisSinceLastUpdated =
+    new Date().getTime() - new Date(issue.updated_at).getTime();
+  return millisSinceLastUpdated >= daysInMillis;
+}
+
+async function markStale(
+  client: github.GitHub,
+  issue: Issue,
+  staleMessage: string,
+  staleLabel: string
+): Promise<number> {
+  core.debug(`marking issue${issue.title} as stale`);
+
+  await client.issues.createComment({
+    owner: github.context.repo.owner,
+    repo: github.context.repo.repo,
+    issue_number: issue.number,
+    body: staleMessage
+  });
+
+  await client.issues.addLabels({
+    owner: github.context.repo.owner,
+    repo: github.context.repo.repo,
+    issue_number: issue.number,
+    labels: [staleLabel]
+  });
+
+  return 2; // operations performed
+}
+
+async function closeIssue(
+  client: github.GitHub,
+  issue: Issue
+): Promise<number> {
+  core.debug(`closing issue ${issue.title} for being stale`);
+
+  await client.issues.update({
+    owner: github.context.repo.owner,
+    repo: github.context.repo.repo,
+    issue_number: issue.number,
+    state: 'closed'
+  });
+
+  return 1; // operations performed
+}
+
+function getAndValidateArgs(): Args {
   const args = {
     repoToken: core.getInput('repo-token', {required: true}),
     staleIssueMessage: core.getInput('stale-issue-message'),
@@ -25,14 +161,13 @@ function getAndValidateArgs(): IssueProcessorOptions {
       core.getInput('days-before-close', {required: true})
     ),
     staleIssueLabel: core.getInput('stale-issue-label', {required: true}),
-    exemptIssueLabels: core.getInput('exempt-issue-labels'),
+    exemptIssueLabel: core.getInput('exempt-issue-label'),
     stalePrLabel: core.getInput('stale-pr-label', {required: true}),
-    exemptPrLabels: core.getInput('exempt-pr-labels'),
+    exemptPrLabel: core.getInput('exempt-pr-label'),
     onlyLabels: core.getInput('only-labels'),
     operationsPerRun: parseInt(
       core.getInput('operations-per-run', {required: true})
-    ),
+    )
-    debugOnly: core.getInput('debug-only') === 'true'
   };
 
   for (const numberInput of [