Feature: Checkout latest release tag

[elfranne]

Use Case

Ability to checkout the latest release.

Describe the Solution You Would Like

Currently i made a custom lib to call Github API which is a simplified version of https://github.com/takumakume/puppet-github-release-properties :

require 'net/http'
require 'uri'
require 'json'
require 'stringio'

Puppet::Functions.create_function(:latest_git_tag) do
  dispatch :latest_git_tag do
    param 'String', :repo
  end

  def latest_git_tag(repo)
    uri = URI.parse("https://api.github.com/repos/#{repo}/releases/latest")
    http = Net::HTTP.new(uri.host, uri.port)
    http.open_timeout = 10
    http.read_timeout = 15
    http.use_ssl = true

    request = Net::HTTP::Get.new(uri)
    request['Content-Type']    = 'application/json'
    request['Accept']          = 'application/vnd.github.v3+json'
    request['Accept-Encoding'] = 'gzip;q=1.0,deflate;q=0.6,identity;q=0.3'

    response = http.request(request)
    raise "#{response.code} #{response.message}: #{uri}" unless response.class == Net::HTTPOK

    raw_body = if response.header['Content-Encoding'].eql?('gzip')
      Zlib::GzipReader.new(StringIO.new(response.body)).read
    else
      response.body
    end
    return JSON.load(raw_body)['tag_name']
  end
end

That I use like that :

vcsrepo { '/path/to/repo':
  ensure   => present,
  provider => git,
  source   => 'git://example.com/repo.git',
  revision => latest_git_tag('puppetlabs/puppetlabs-vcsrepo'),
}

Describe Alternatives You've Considered

Downloading the tarball might be an option ?

Additional Context

This is a very simplified that fit my very specific needs (Github). Is there a better way ? Feedback is very welcome !