Added support for labels and existing PR check (v2 from master)

.github/workflows/master-CI.yml

@@ -113,3 +113,84 @@ jobs:
             https://api.github.com/repos/${{ github.repository }}/pulls/${{ steps.create-pr-with-reviewers.outputs.number }} \
             -d '{"state":"closed"}'
         if: always()
+
+  create-pr-with-labels:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - run: |
+          git config user.email noreply@github.com
+          git config user.name "GitHub actions"
+          git checkout -b feature/test/${{ github.sha }}-labels
+          echo date > current-date.txt
+          git add current-date.txt
+          git commit --message "Some changes"
+          git push origin feature/test/${{ github.sha }}-labels
+      - uses: ./
+        id: create-pr-with-labels
+        with:
+          head: feature/test/${{ github.sha }}-labels
+          title: Testing commit ${{ github.sha }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          labels: label1,label2
+      - name: Validate that PR exists
+        run: curl --fail https://api.github.com/repos/${{ github.repository }}/pulls/${{ steps.create-pr-with-labels.outputs.number }}
+      - name: Close PR
+        run: |
+          curl \
+            -X PATCH \
+            -H 'Accept: application/vnd.github.v3+json' \
+            -H "Authorization: token ${{ secrets.GITHUB_TOKEN }}" \
+            -H "Content-Type: application/json" \
+            https://api.github.com/repos/${{ github.repository }}/pulls/${{ steps.create-pr-with-labels.outputs.number }} \
+            -d '{"state":"closed"}'
+        if: always()
+
+  do-not-fail-on-existing_pr:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - run: |
+          git config user.email noreply@github.com
+          git config user.name "GitHub actions"
+          git checkout -b feature/test/${{ github.sha }}-idempotent-case
+          echo date > current-date.txt
+          git add current-date.txt
+          git commit --message "Some changes"
+          git push origin feature/test/${{ github.sha }}-idempotent-case
+      - uses: ./
+        id: create-pr
+        with:
+          head: feature/test/${{ github.sha }}-idempotent-case
+          title: Testing commit ${{ github.sha }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - name: Validate that PR exists
+        run: curl --fail https://api.github.com/repos/${{ github.repository }}/pulls/${{ steps.create-pr.outputs.number }}
+      - uses: ./
+        id: second-create-pr
+        with:
+          head: feature/test/${{ github.sha }}-idempotent-case
+          title: Testing commit ${{ github.sha }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - name: Validate that only first PR is created
+        run: |
+          if [ "${{ steps.create-pr.outputs.created }}" != "true" ]
+          then
+            echo "First PR is not created: ${{ steps.create-pr.outputs.created }}"
+            exit 1
+          fi
+          if [ "${{ steps.second-create-pr.outputs.created }}" != "false" ]
+          then
+            echo "Second PR is created: ${{ steps.second-create-pr.outputs.created }}"
+            exit 1
+          fi
+      - name: Close PR
+        run: |
+          curl \
+            -X PATCH \
+            -H 'Accept: application/vnd.github.v3+json' \
+            -H "Authorization: token ${{ secrets.GITHUB_TOKEN }}" \
+            -H "Content-Type: application/json" \
+            https://api.github.com/repos/${{ github.repository }}/pulls/${{ steps.create-pr.outputs.number }} \
+            -d '{"state":"closed"}'
+        if: always()

CHANGELOG.md

@@ -7,6 +7,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Added
+
+- Support for adding labels by setting `labels`
+- Check for existing pull request and `created` action output
+
 ## [1.1.0] - 2021-06-16
 
 ### Added

README.md

@@ -40,3 +40,11 @@ For self-hosted runners behind a corporate proxy, set the https_proxy environmen
       env:
         https_proxy: http://<proxy_address>:<port>
 ```
+
+### Action outputs
+
+The following outputs can be set by action
+
+- `number` - Number of the created pull request.
+- `html_url` - URL of the created pull request.
+- `created` - 'true' if pull request was successfully created, 'false' if pull request existed already.

__tests__/getInputs.test.ts

@@ -76,3 +76,29 @@ it('should trim reviewer names', function() {
 
   expect(inputs).toHaveProperty('reviewers', ['d4nte', 'bonomat', 'luckysori']);
 });
+
+it('should default to empty list of labels', function() {
+  const inputs = morph(getInputs, {
+    ...MANDATORY_INPUTS,
+  });
+
+  expect(inputs).toHaveProperty('labels', []);
+});
+
+it('should split labels by comma', function() {
+  const inputs = morph(getInputs, {
+    ...MANDATORY_INPUTS,
+    INPUT_LABELS: 'label1,label2',
+  });
+
+  expect(inputs).toHaveProperty('labels', ['label1', 'label2']);
+});
+
+it('should trim labels', function() {
+  const inputs = morph(getInputs, {
+    ...MANDATORY_INPUTS,
+    INPUT_LABELS: 'label1, label2, label3',
+  });
+
+  expect(inputs).toHaveProperty('labels', ['label1', 'label2', 'label3']);
+});

src/getInputs.ts

@@ -1,5 +1,6 @@
 import { getInput } from '@actions/core/lib/core';
 import {
+  IssuesAddLabelsParams,
   PullsCreateParams,
   PullsCreateReviewRequestParams,
 } from '@octokit/plugin-rest-endpoint-methods/dist-types/generated/rest-endpoint-methods-types';
@@ -8,6 +9,9 @@ type Inputs =
   & PullsCreateParams
   & Required<
     Omit<PullsCreateReviewRequestParams, 'pull_number' | 'team_reviewers'>
+  >
+  & Required<
+    Omit<IssuesAddLabelsParams, 'issue_number'>
   >;
 
 export function getInputs(): Inputs {
@@ -17,6 +21,7 @@ export function getInputs(): Inputs {
   const draft = getInput('draft') ? JSON.parse(getInput('draft')) : undefined;
   const body = getInput('body') || undefined;
   const reviewers = getInput('reviewers');
+  const labels = getInput('labels');
 
   const githubRepository = process.env.GITHUB_REPOSITORY;
 
@@ -37,5 +42,8 @@ export function getInputs(): Inputs {
     reviewers: reviewers
       ? reviewers.split(',').map(reviewer => reviewer.trim())
       : [],
+    labels: labels
+      ? labels.split(',').map(label => label.trim())
+      : [],
   };
 }

src/index.ts

@@ -6,7 +6,7 @@ import { getInputs } from './getInputs';
 
 async function run(): Promise<void> {
   try {
-    const { reviewers, ...pullParams } = getInputs();
+    const { reviewers, labels, ...pullParams } = getInputs();
 
     const options: OctokitOptions = {};
     options.baseUrl = process.env.GITHUB_API_URL;
@@ -32,10 +32,24 @@ async function run(): Promise<void> {
       });
     }
 
+    if (labels.length > 0) {
+      await octokit.issues.addLabels({
+        owner: pullParams.owner,
+        repo: pullParams.repo,
+        issue_number: pullNumber,
+        labels: labels,
+      });
+    }
+
     setOutput('number', pullNumber.toString());
     setOutput('html_url', htmlUrl);
+    setOutput('created', 'true');
   } catch (error) {
-    setFailed(error.message);
+    if (error.message && error.message.includes('A pull request already exists')) {
+      setOutput('created', 'false');
+    } else {
+      setFailed(error.message);
+    }
   }
 }