chore: setup 5.x auto release

scripts/release.js

@@ -0,0 +1,97 @@
+'use strict'
+
+// Called from .github/workflows
+
+// The following two variables should be updated per major version release branch (main, v5.x, etc)
+const VERSION_TAG_PREFIX = 'v5.'
+const BRANCH = 'v5.x'
+
+const getLatestRelease = async ({ github, owner, repo }) => {
+  for await (const { data } of github.paginate.iterator(
+    github.rest.repos.listReleases,
+    {
+      owner,
+      repo
+    }
+  )) {
+    const latestRelease = data.find((r) => r.tag_name.startsWith(VERSION_TAG_PREFIX))
+
+    if (latestRelease) {
+      return latestRelease
+    }
+  }
+
+  throw new Error(`Could not find latest release of ${VERSION_TAG_PREFIX}x`)
+}
+
+const generateReleaseNotes = async ({ github, owner, repo, versionTag }) => {
+  const previousRelease = await getLatestRelease({ github, owner, repo, versionTag })
+
+  const { data: { body } } = await github.rest.repos.generateReleaseNotes({
+    owner,
+    repo,
+    tag_name: versionTag,
+    target_commitish: `heads/${BRANCH}`,
+    previous_tag_name: previousRelease.tag_name
+  })
+
+  const bodyWithoutReleasePr = body.split('\n')
+    .filter((line) => !line.includes('[Release] v'))
+    .join('\n')
+
+  return bodyWithoutReleasePr
+}
+
+const generatePr = async ({ github, context, versionTag }) => {
+  const { owner, repo } = context.repo
+  const releaseNotes = await generateReleaseNotes({ github, owner, repo, versionTag })
+
+  await github.rest.pulls.create({
+    owner,
+    repo,
+    head: `release/${versionTag}`,
+    base: BRANCH,
+    title: `[Release] ${versionTag}`,
+    body: releaseNotes
+  })
+}
+
+const release = async ({ github, context, versionTag }) => {
+  const { owner, repo } = context.repo
+  const releaseNotes = await generateReleaseNotes({ github, owner, repo, versionTag })
+
+  await github.rest.repos.createRelease({
+    owner,
+    repo,
+    tag_name: versionTag,
+    target_commitish: `heads/${BRANCH}`,
+    name: versionTag,
+    body: releaseNotes,
+    draft: false,
+    prerelease: false,
+    generate_release_notes: false
+  })
+
+  try {
+    await github.rest.git.deleteRef({
+      owner,
+      repo,
+      ref: `heads/release/${versionTag}`
+    })
+  } catch (err) {
+    console.log("Couldn't delete release PR ref")
+    console.log(err)
+  }
+}
+
+const previousReleaseTag = async ({ github, context, versionTag }) => {
+  const { owner, repo } = context.repo
+  const previousRelease = await getLatestRelease({ github, owner, repo, versionTag })
+  return previousRelease.tag_name
+}
+
+module.exports = {
+  generatePr,
+  release,
+  previousReleaseTag
+}