Merge pull request #61 from actions/upstream-preview-alpha

Add support for preview deployments internal alpha experiment 🧪

action.yml

@@ -29,6 +29,10 @@ inputs:
     description: 'Name of the artifact to deploy'
     required: false
     default: 'github-pages'
+  preview:
+    description: 'Is this attempting to deploy a pull request as a GitHub Pages preview site? (NOTE: This feature is only in alpha currently and is not available to the public!)'
+    required: false
+    default: 'false'
 outputs:
   page_url:
     description: 'URL to deployed GitHub Pages'

src/context.js

@@ -12,7 +12,8 @@ function getRequiredVars() {
     actionsId: process.env.GITHUB_ACTION,
     githubToken: core.getInput('token'),
     githubApiUrl: process.env.GITHUB_API_URL ?? 'https://api.github.com',
-    artifactName: core.getInput('artifact_name') ?? 'github-pages'
+    artifactName: core.getInput('artifact_name') ?? 'github-pages',
+    isPreview: core.getInput('preview') === 'true'
   }
 }
 

src/deployment.js

@@ -27,6 +27,7 @@ class Deployment {
     this.deploymentInfo = null
     this.githubApiUrl = context.githubApiUrl
     this.artifactName = context.artifactName
+    this.isPreview = context.isPreview === true
   }
 
   // Ask the runtime for the unsigned artifact URL and deploy to GitHub Pages
@@ -58,6 +59,9 @@ class Deployment {
         pages_build_version: this.buildVersion,
         oidc_token: idToken
       }
+      if (this.isPreview === true) {
+        payload.preview = true
+      }
       core.info(`Creating deployment with payload:\n${JSON.stringify(payload, null, '\t')}`)
       const response = await axios.post(pagesDeployEndpoint, payload, {
         headers: {
@@ -110,7 +114,12 @@ class Deployment {
         this.deploymentInfo != null
           ? this.deploymentInfo['status_url']
           : `${this.githubApiUrl}/repos/${this.repositoryNwo}/pages/deployment/status/${this.buildVersion}`
-      core.setOutput('page_url', this.deploymentInfo != null ? this.deploymentInfo['page_url'] : '')
+      let pageUrl = this.deploymentInfo != null ? this.deploymentInfo['page_url'] : ''
+      const previewUrl = this.deploymentInfo != null ? this.deploymentInfo['preview_url'] : ''
+      if (this.isPreview && previewUrl) {
+        pageUrl = previewUrl
+      }
+      core.setOutput('page_url', pageUrl)
       const timeout = Number(core.getInput('timeout'))
       const reportingInterval = Number(core.getInput('reporting_interval'))
       const maxErrorCount = Number(core.getInput('error_count'))

src/index.test.js

@@ -22,6 +22,11 @@ describe('with all environment variables set', () => {
     process.env.GITHUB_ACTION_PATH = 'something'
   })
 
+  afterEach(() => {
+    // Remove mock for `core.getInput('preview')`
+    delete process.env.INPUT_PREVIEW
+  })
+
   it('Executes cleanly', done => {
     const ip = path.join(__dirname, './index.js')
     cp.exec(`node ${ip}`, { env: process.env }, (err, stdout) => {
@@ -61,6 +66,8 @@ describe('create', () => {
           return 'github-pages'
         case 'token':
           return process.env.GITHUB_TOKEN
+        default:
+          return process.env[`INPUT_${param.toUpperCase()}`] || ''
       }
     })
 
@@ -120,6 +127,52 @@ describe('create', () => {
     scope.done()
   })
 
+  it('can successfully create a preview deployment', async () => {
+    process.env.GITHUB_SHA = 'valid-build-version'
+    const fakeJwt =
+      'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.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.1wyupfxu1HGoTyIqatYg0hIxy2-0bMO-yVlmLSMuu2w'
+    const scope = nock(`http://my-url`)
+      .get('/_apis/pipelines/workflows/123/artifacts?api-version=6.0-preview')
+      .reply(200, {
+        value: [
+          { url: 'https://another-artifact.com', name: 'another-artifact' },
+          { url: 'https://fake-artifact.com', name: 'github-pages' }
+        ]
+      })
+
+    core.getIDToken = jest.fn().mockResolvedValue(fakeJwt)
+    axios.post = jest.fn().mockResolvedValue('test')
+
+    // Return `"true"` for `core.getInput("preview")`
+    process.env.INPUT_PREVIEW = 'true'
+
+    // Create the deployment
+    const deployment = new Deployment()
+    await deployment.create(fakeJwt)
+
+    expect(axios.post).toBeCalledWith(
+      'https://api.github.com/repos/actions/is-awesome/pages/deployment',
+      {
+        artifact_url: 'https://fake-artifact.com&%24expand=SignedContent',
+        pages_build_version: 'valid-build-version',
+        oidc_token: fakeJwt,
+        preview: true
+      },
+      {
+        headers: {
+          Accept: 'application/vnd.github.v3+json',
+          Authorization: `Bearer gha-token`,
+          'Content-type': 'application/json'
+        }
+      }
+    )
+
+    expect(core.setFailed).not.toHaveBeenCalled()
+    expect(core.info).toHaveBeenCalledWith('Created deployment for valid-build-version')
+
+    scope.done()
+  })
+
   it('Reports errors with failed deployments', async () => {
     process.env.GITHUB_SHA = 'invalid-build-version'
     const scope = nock(`http://my-url`)