module Bundler::BuildMetadata

def self.built_at
  @built_at ||= Time.now.utc.strftime("%Y-%m-%d").freeze
end

def self.git_commit_sha
  return @git_commit_sha if instance_variable_defined? :@git_commit_sha
  # If Bundler has been installed without its .git directory and without a
  # commit instance variable then we can't determine its commits SHA.
  git_dir = File.join(File.expand_path("../../../..", __FILE__), ".git")
  if File.directory?(git_dir)
    return @git_commit_sha = Dir.chdir(git_dir) { `git rev-parse --short HEAD`.strip.freeze }
  end
  @git_commit_sha ||= "unknown"
end

def self.release?
  @release
end

def self.to_h
  {
    "Built At" => built_at,
    "Git SHA" => git_commit_sha,
    "Released Version" => release?,
  }
end