module.exports = /*async*/ ({github, context, core}) => {
const restapi = github.rest
var dryrun = context.payload.inputs.dryrun
function firstOrDefault(items, predicate) {
for (const item of items) {
if (predicate(item)) {
return item
}
}
return null
}
async function validateRelease() {
const version = context.payload.inputs.version
const tag = "v" + version
console.log(`Validate version '${version}'.`)
// git branch must exist
const branchRefs = await restapi.git.listMatchingRefs({
owner: context.repo.owner,
repo: context.repo.repo,
ref: `heads/release/${version}`
})
if (firstOrDefault(branchRefs.data, (x) => x.ref == `refs/heads/release/${version}`) == null) {
core.setFailed(`Could not find branch 'release/${version}'.`)
return
}
console.log(`Found branch 'release/${version}'.`)
// github milestone must exist and be open
const milestone = await getMilestone()
if (milestone == null) {
core.setFailed(`Could not find milestone '${version}'.`)
return
}
if (milestone.state != "open") {
core.setFailed(`Milestone '${version}' is already closed.`)
return
}
console.log(`Found open milestone '${version}'.`)
// github release must exist and not be published yet
const release = await getRelease()
if (release === null) {
core.setFailed(`Could not find a GitHub release for tag '${tag}'.`)
return
}
if (!release.draft) {
core.setFailed(`GitHub release for tag '${tag}' is already published.`)
return
}
console.log(`Found yet-unpublished GitHub release for tag '${tag}'.`)
// tag must not exist
const tagRefs = await restapi.git.listMatchingRefs({
owner: context.repo.owner,
repo: context.repo.repo,
ref: `tags/${tag}`
})
if (firstOrDefault(tagRefs.data, (x) => x.ref == `tags/${tag}`) != null) {
core.setFailed(`Tag '${tag}' already exists.`)
return
}
console.log(`Verified that tag '${tag}' does not exist yet.`)
console.log('Release is valid.')
}
async function publishRelease() {
const version = context.payload.inputs.version
const tag = "v" + version
console.log(`Publish GitHub release '${version}'.`)
const release = await getRelease()
await restapi.repos.updateRelease({
owner: context.repo.owner,
repo: context.repo.repo,
release_id: release.id,
draft: false
})
}
async function closeMilestone() {
const version = context.payload.inputs.version
const tag = "v" + version
console.log(`Close milestone '${version}'.`)
const milestone = await getMilestone()
await restapi.issues.updateMilestone({
owner: context.repo.owner,
repo: context.repo.repo,
milestone_number: milestone.number,
state: "closed"
})
}
async function getRelease() {
// note: getReleaseByTag only returns published releases
// note: we may eventually need to paginate
// and then releases.headers should contain what we need?
// https://octokit.github.io/rest.js/v18#pagination
const version = context.payload.inputs.version
const tag = `v${version}`
const releases = await restapi.repos.listReleases({
owner: context.repo.owner,
repo: context.repo.repo
})
const release = firstOrDefault(releases.data, (x) => x.tag_name == tag)
return release
}
async function getMilestone() {
const version = context.payload.inputs.version
const milestonesResponse = await restapi.issues.listMilestones({
owner: context.repo.owner,
repo: context.repo.repo
})
const milestones = milestonesResponse.data
return firstOrDefault(milestones, (x) => x.title == version)
}
return {
validateRelease: validateRelease,
publishRelease: publishRelease,
closeMilestone: closeMilestone
}
}
