release-rollback.rb

#!/usr/bin/env ruby

# release-rollback.sh
#
# SUMMARY
#
#   Rolls back a fresh release. This should only be used in situations
#   where the release process failed.

require_relative "setup"

#
# Commit
#

metadata = Metadata.load!(META_ROOT, DOCS_ROOT, GUIDES_ROOT, PAGES_ROOT)
release = metadata.latest_release
version = release.version

#
# Rollback
#

input = Printer.get("Do you want to rollback #{version}?")

if input == "n"
  Printer.error!("You can only rollback the latest release")
end

branch_commands =
  if release.version.patch == 0
    commands =
      <<~EOF
      git branch -d v#{version.major}.#{version.minor}
      git push origin --delete v#{version.major}.#{version.minor}
      EOF

    commands.chomp
  else
    ""
  end

commands =
  <<~EOF
  git tag -d v#{version}
  git push --delete origin v#{version}
  #{branch_commands}
  EOF

commands.chomp!

words =
  <<~EOF
  We'll be rolling back v#{version} with the following commands:

  #{commands.indent(2)}

  Proceed to execute the above commands?
  EOF

if Printer.get(words, ["y", "n"]) == "n"
  Printer.error!("Ok, I've aborted. Please re-run this command when you're ready.")
end

commands.chomp.split("\n").each do |command|
    system(command)

    if !$?.success?
      Printer.error!(
        <<~EOF
        Command failed!

          #{command}

        Produced the following error:

          #{$?.inspect}
        EOF
      )
    end
  end