autotag/app/lib/tag.js

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import core from '@actions/core'
import os from 'os'
import { GitHub, context } from '@actions/github'
// Get authenticated GitHub client (Ocktokit): https://github.com/actions/toolkit/tree/master/packages/github#usage
const github = new GitHub(process.env.GITHUB_TOKEN || process.env.INPUT_GITHUB_TOKEN)
// Get owner and repo from context of payload that triggered the action
const { owner, repo } = context.repo
export default class Tag {
constructor (prefix, version, postfix) {
this.prefix = prefix
this.version = version
this.postfix = postfix
this._tags = null
this._message = null
this._exists = null
}
get name () {
return `${this.prefix.trim()}${this.version.trim()}${this.postfix.trim()}`
}
set message (value) {
if (value && value.length > 0) {
this._message = value
}
}
async getMessage () {
if (this._message !== null) {
return this._message
}
try {
const changelog = await github.repos.compareCommits({ owner, repo, base: tags.data.shift().name, head: 'master' })
return changelog.data.commits
.map(
(commit, i) =>
`${i + 1}) ${commit.commit.message}${
commit.hasOwnProperty('author')
? commit.author.hasOwnProperty('login')
? ' (' + commit.author.login + ')'
: ''
: ''
}\n(SHA: ${commit.sha})\n`
)
.join('\n')
} catch (e) {
core.warning('Failed to generate changelog from commits: ' + e.message + os.EOL)
return `Version ${this.version}`
}
}
async getTags () {
if (this._tags !== null) {
return this._tags.data
}
this._tags = await github.repos.listTags({ owner, repo, per_page: 100 })
return this._tags.data
}
async exists () {
if (this._exists !== null) {
return this._exists
}
const currentTag = this.name
const tags = await this.getTags()
for (const tag of tags) {
if (tag.name === currentTag) {
this._exists = true
return true
}
}
this._exists = false
return false
}
async push () {
let tagexists = await this.exists()
if (!tagexists) {
// Create tag
const newTag = await github.git.createTag({
owner,
repo,
tag: this.name,
message: this.message,
object: process.env.GITHUB_SHA,
type: 'commit'
})
core.warning(`Created new tag: ${newTag.data.tag}`)
// Create reference
let newReference
try {
newReference = await github.git.createRef({
owner,
repo,
ref: `refs/tags/${newTag.data.tag}`,
sha: newTag.data.sha
})
} catch (e) {
core.warning({
owner,
repo,
ref: `refs/tags/${newTag.data.tag}`,
sha: newTag.data.sha
})
throw e
}
core.warning(`Reference ${newReference.data.ref} available at ${newReference.data.url}` + os.EOL)
// Store values for other actions
if (typeof newTag === 'object' && typeof newReference === 'object') {
core.setOutput('tagname', this.name)
core.setOutput('tagsha', newTag.data.sha)
core.setOutput('taguri', newReference.data.url)
core.setOutput('tagmessage', this.message)
core.setOutput('tagref', newReference.data.ref)
core.setOutput('tagcreated', 'yes')
}
} else {
core.warning('Cannot push tag (it already exists).')
}
}
}