Add Labels Feature

README.md

@@ -24,6 +24,7 @@ This Action is customizable so you can use it for your own purposes and it doesn
 | `review_required` | Whether or not reviews should be passing to combine the PR - can be `"true"` or `"false"` | `"false"` | `false` |
 | `ignore_label` | The label to ignore when combining PRs | `"nocombine"` | `true` |
 | `select_label` | The label which marks PRs that should be combined. Leave empty to consider all PRs. | `""` | `false` |
+| `labels` | A comma seperated list of labels to add to the combined PR - Example: `dependencies,combined-pr,etc` | `""` | `false` |
 
 ## Outputs 📤
 

__tests__/main.test.js

@@ -42,6 +42,7 @@ beforeEach(() => {
   process.env.INPUT_SELECT_LABEL = ''
   process.env.GITHUB_REPOSITORY = 'test-owner/test-repo'
   process.env.INPUT_MIN_COMBINE_NUMBER = '2'
+  process.env.INPUT_LABELS = ''
 
   jest.spyOn(github, 'getOctokit').mockImplementation(() => {
     return {
@@ -660,6 +661,143 @@ test('ignore_label and select_label can both be empty', async () => {
   expect(await run()).toBe('success')
 })
 
+test('successfully runs the action and sets labels', async () => {
+  jest.spyOn(github, 'getOctokit').mockImplementation(() => {
+    return {
+      paginate: jest.fn().mockImplementation(() => {
+        return [
+          buildPR(1, 'dependabot-1', ['question']),
+          buildPR(2, 'dependabot-2'),
+          buildPR(3, 'dependabot-3', ['nocombine']),
+          buildPR(4, 'dependabot-4'),
+          buildPR(5, 'dependabot-5'),
+          buildPR(6, 'dependabot-6'),
+          buildPR(7, 'fix-package')
+        ]
+      }),
+      graphql: jest.fn().mockImplementation((_query, params) => {
+        switch (params.pull_number) {
+          case 1:
+          case 2:
+          case 3:
+            return buildStatusResponse('APPROVED', 'SUCCESS')
+          case 4:
+            return buildStatusResponse('APPROVED', 'FAILURE')
+          case 5:
+            return buildStatusResponse(null, 'SUCCESS')
+          case 6:
+            return buildStatusResponse('REVIEW_REQUIRED', 'SUCCESS')
+          default:
+            throw new Error(
+              `params.pull_number of ${params.pull_number} is not configured.`
+            )
+        }
+      }),
+      rest: {
+        issues: {
+          addLabels: jest.fn().mockReturnValueOnce({
+            data: {}
+          })
+        },
+        git: {
+          createRef: jest.fn().mockReturnValueOnce({
+            data: {}
+          })
+        },
+        repos: {
+          // mock the first value of merge to be a success and the second to be an exception
+          merge: jest
+            .fn()
+            .mockReturnValueOnce({
+              data: {
+                merged: true
+              }
+            })
+            .mockImplementationOnce(() => {
+              throw new Error('merge error')
+            })
+        },
+        pulls: {
+          create: jest.fn().mockReturnValueOnce({
+            data: {
+              number: 100,
+              html_url: 'https://github.com/test-owner/test-repo/pull/100'
+            }
+          })
+        }
+      }
+    }
+  })
+
+  process.env.INPUT_REVIEW_REQUIRED = 'true'
+  process.env.INPUT_LABELS = 'label1,label2, label3'
+  expect(await run()).toBe('success')
+  expect(infoMock).toHaveBeenCalledWith('Pull for branch: dependabot-1')
+  expect(infoMock).toHaveBeenCalledWith('Branch matched prefix: dependabot-1')
+  expect(infoMock).toHaveBeenCalledWith('Checking green status: dependabot-1')
+  expect(infoMock).toHaveBeenCalledWith('Validating status: SUCCESS')
+  expect(infoMock).toHaveBeenCalledWith('Validating review decision: APPROVED')
+  expect(infoMock).toHaveBeenCalledWith('Branch dependabot-1 is approved')
+  expect(infoMock).toHaveBeenCalledWith('Pull for branch: dependabot-2')
+  expect(infoMock).toHaveBeenCalledWith('Branch matched prefix: dependabot-2')
+  expect(infoMock).toHaveBeenCalledWith('Checking green status: dependabot-2')
+  expect(infoMock).toHaveBeenCalledWith('Validating status: SUCCESS')
+  expect(infoMock).toHaveBeenCalledWith('Validating review decision: APPROVED')
+  expect(infoMock).toHaveBeenCalledWith('Branch dependabot-2 is approved')
+  expect(infoMock).toHaveBeenCalledWith('Pull for branch: dependabot-3')
+  expect(infoMock).toHaveBeenCalledWith('Branch matched prefix: dependabot-3')
+  expect(infoMock).toHaveBeenCalledWith('Pull for branch: dependabot-4')
+  expect(infoMock).toHaveBeenCalledWith('Branch matched prefix: dependabot-4')
+  expect(infoMock).toHaveBeenCalledWith('Checking green status: dependabot-4')
+  expect(infoMock).toHaveBeenCalledWith('Validating status: FAILURE')
+  expect(infoMock).toHaveBeenCalledWith(
+    'Discarding dependabot-4 with status FAILURE'
+  )
+  expect(infoMock).toHaveBeenCalledWith('Branch matched prefix: dependabot-5')
+  expect(infoMock).toHaveBeenCalledWith('Checking green status: dependabot-5')
+  expect(infoMock).toHaveBeenCalledWith('Validating status: SUCCESS')
+  expect(infoMock).toHaveBeenCalledWith('Validating review decision: null')
+  expect(infoMock).toHaveBeenCalledWith(
+    'Branch dependabot-5 has no required reviewers - OK'
+  )
+  expect(infoMock).toHaveBeenCalledWith('Checking labels: dependabot-1')
+  expect(infoMock).toHaveBeenCalledWith('Checking ignore_label for: question')
+  expect(infoMock).toHaveBeenCalledWith('Adding branch to array: dependabot-1')
+  expect(infoMock).toHaveBeenCalledWith('Checking labels: dependabot-2')
+  expect(infoMock).toHaveBeenCalledWith('Adding branch to array: dependabot-2')
+  expect(infoMock).toHaveBeenCalledWith('Checking labels: dependabot-3')
+  expect(infoMock).toHaveBeenCalledWith('Checking ignore_label for: nocombine')
+  expect(infoMock).toHaveBeenCalledWith(
+    'Discarding dependabot-3 with label nocombine because it matches ignore_label'
+  )
+  expect(infoMock).toHaveBeenCalledWith('Checking labels: dependabot-4')
+  expect(infoMock).toHaveBeenCalledWith('Checking labels: dependabot-5')
+  expect(infoMock).toHaveBeenCalledWith('Checking labels: dependabot-6')
+  expect(infoMock).toHaveBeenCalledWith('Merged branch dependabot-1')
+  expect(warningMock).toHaveBeenCalledWith(
+    'Failed to merge branch dependabot-2'
+  )
+  expect(infoMock).toHaveBeenCalledWith('Merged branch dependabot-5')
+  expect(infoMock).toHaveBeenCalledWith('Creating combined PR')
+  expect(debugMock).toHaveBeenCalledWith(
+    'PR body: # Combined PRs ➡️📦⬅️\n\n✅ The following pull requests have been successfully combined on this PR:\n- #1 Update dependency 1\n- #5 Update dependency 5\n\n⚠️ The following PRs were left out due to merge conflicts:\n- #2 Update dependency 2\n\n> This PR was created by the [`github/combine-prs`](https://github.com/github/combine-prs) action'
+  )
+
+  expect(infoMock).toHaveBeenCalledWith(
+    `Adding labels to combined PR: label1,label2,label3`
+  )
+
+  expect(infoMock).toHaveBeenCalledWith(
+    'Combined PR url: https://github.com/test-owner/test-repo/pull/100'
+  )
+  expect(infoMock).toHaveBeenCalledWith('Combined PR number: 100')
+  expect(setOutputMock).toHaveBeenCalledWith('pr_number', 100)
+  expect(setOutputMock).toHaveBeenCalledWith(
+    'pr_url',
+    'https://github.com/test-owner/test-repo/pull/100'
+  )
+})
+
 function buildStatusResponse(reviewDecision, ciStatus) {
   return {
     repository: {

action.yml

@@ -49,6 +49,10 @@ inputs:
     description: The label marking PRs that should be combined
     required: false
     default: ""
+  labels:
+    description: A comma seperated list of labels to add to the combined PR
+    required: false
+    default: ""
 outputs:
   pr_url:
     description: The pull request URL if a PR was created