feat: add pull-request-header input (#615)

Co-authored-by: Jeff Ching <chingor@google.com>

README.md

@@ -60,6 +60,7 @@ Automate releases with Conventional Commit Messages.
 |             `command`              | release-please command to run, either `github-release`, or `release-pr`, `manifest`, `manifest-pr` (_defaults to running both_)                                                                                                                                                                                                                               |
 |          `default-branch`          | branch to open pull release PR against (detected by default)                                                                                                                                                                                                                                                                                                  |
 |    `pull-request-title-pattern`    | title pattern used to make release PR, defaults to using `chore${scope}: release${component} ${version}`.                                                                                                                                                                                                                                                     |
+|        `pull-request-header`       | header used within the release PR body, defaults to using `:robot: I have created a release *beep* *boop*`.                                                                                                                                                                                                                                                     |
 |          `changelog-path`          | configure alternate path for `CHANGELOG.md`. Default `CHANGELOG.md`                                                                                                                                                                                                                                                                                           |
 |          `github-api-url`          | configure github API URL. Default `https://api.github.com`                                                                                                                                                                                                                                                                                                    |
 |             `signoff`              | Add [`Signed-off-by`](https://git-scm.com/docs/git-commit#Documentation/git-commit.txt---signoff) line at the end of the commit log message using the user and email provided. (format "Name \<email@example.com\>")                                                                                                                                          |

action.yml

@@ -91,6 +91,9 @@ inputs:
   pull-request-title-pattern:
     description: 'add title pattern to make release PR, defaults to using "chore${scope}: release${component} ${version}"'
     required: false
+  pull-request-header:
+    description: 'set release PR header, defaults to using ":robot: I have created a release *beep* *boop*"'
+    required: false
   draft:
     description: 'mark release as a draft'
     required: false

index.js

@@ -141,6 +141,7 @@ async function manifestInstance (github) {
   const versionFile = core.getInput('version-file') || undefined
   const extraFiles = core.getMultilineInput('extra-files') || undefined
   const pullRequestTitlePattern = core.getInput('pull-request-title-pattern') || undefined
+  const pullRequestHeader = core.getInput('pull-request-header') || undefined
   const draft = getOptionalBooleanInput('draft')
   const draftPullRequest = getOptionalBooleanInput('draft-pull-request')
   const changelogType = core.getInput('changelog-notes-type') || undefined
@@ -179,6 +180,7 @@ async function manifestInstance (github) {
       extraFiles,
       includeComponentInTag: monorepoTags,
       pullRequestTitlePattern,
+      pullRequestHeader,
       draftPullRequest,
       versioning,
       releaseAs,

test/release-please.js

@@ -159,6 +159,39 @@ describe('release-please-action', () => {
     )
   })
 
+  it('opens PR with custom header', async () => {
+    input = {
+      command: 'release-pr',
+      'release-type': 'node',
+      'pull-request-header': 'another header',
+      'skip-github-release': 'false',
+      prerelease: 'false',
+      'include-v-in-tag': 'true',
+      'always-link-local': 'true',
+      'separate-pull-requests': 'false',
+      'skip-labeling': 'false',
+      'sequential-calls': 'false'
+    }
+
+    const createPullRequestsFake = sandbox.fake.returns([fixturePrs[0]])
+    const createManifestCommand = sandbox.stub(Manifest, 'fromConfig').returns({
+      createPullRequests: createPullRequestsFake
+    })
+    await action.main()
+
+    sinon.assert.calledOnce(createPullRequestsFake)
+    sinon.assert.calledWith(
+      createManifestCommand,
+      sinon.match.any,
+      'main',
+      sinon.match.hasOwn(
+        'pullRequestHeader',
+        'another header'
+      ),
+      sinon.match.any
+    )
+  })
+
   it('both opens PR to the default branch and tags GitHub releases by default', async () => {
     input = {
       'skip-github-release': 'false',