ow-cli

#!/usr/bin/env ruby
# frozen_string_literal: true

require 'clamp'
require 'English'

module OpenwareCli
  class Base < ::Clamp::Command
    def shell(command, fail_on_error = true)
      warn "Executing: #{command}"
      system(command)
      raise 'Command failed' if fail_on_error && $CHILD_STATUS.exitstatus != 0
    end
  end

  class Build < Base
    def version(image)
      path = File.join(image, 'VERSION')
      raise "#{path} not found" unless File.exist?(path)

      File.read(path).strip
    end

    def build(image)
      shell("docker build -t quay.io/openware/#{image}:#{version(image)} --build-arg=VERSION=#{version(image)} #{image}")
      shell("docker push quay.io/openware/#{image}:#{version(image)}") if push?
    end

    option '--push', :flag, 'Push the image after build', default: false
    option '--all-images', :flag, 'Build all images', default: false
    option '--image', 'IMAGE', 'Build a specific image', default: nil
    def execute
      if all_images?
        warn 'TODO: call build for every image'
      elsif image
        build(image)
      else
        warn 'Nothing to do'
      end
    end
  end

  class BuildIncremental < Base
    option '--push', :flag, 'Push the image after build', default: false
    def execute
      images.each do |image|
        params = ['--image', image]
        params << '--push' if push?
        Build.run(File.basename($PROGRAM_NAME), params)
      end
    end

    def images
      IO.popen('git log -1 --stat').read
        .split("\n").map { |s| (m = s.match(%r{^ ([^/]+)/})) && m[1] }
        .compact.map { |s| (m = s.match(/{\w+ => (\w+)}/)) && m[1] || s }
        .compact.uniq
    end
  end

  class Root < ::Clamp::Command
    subcommand 'build', 'build a specific image', Build
    subcommand 'incremental-build', 'build images which were changed in the last patch only', BuildIncremental
  end
end

OpenwareCli::Root.run