crispgm/gsm

#!/usr/bin/env ruby

$LOAD_PATH.unshift(File.join(File.dirname(__FILE__), *%w(.. lib)))

require "gsm"
require "commander"

class Application
  include Commander::Methods

  def run
    program :name, "gsm"
    program :version, Gsm::VERSION
    program :description, "GSM Sources Manager"

    conf_path = ""
    user_path = Dir.home()
    Dir.chdir(user_path) do
      if !Dir.exist?(".gsm")
        Dir.mkdir(".gsm")
      end
    end

    conf_path = "#{user_path}/.gsm/sources.yml"

    gem = Gsm::Gem.new(conf_path)

    command :list do |c|
      c.syntax = "list"
      c.description = "List all sources"

      c.action do |_, _|
        gem.sources.each do |name, url|
          use_mark = ""
          if gem.get == name
            use_mark = "(*)"
          end
          puts "#{name}: #{url} #{use_mark}"
        end
      end
    end

    command :use do |c|
      c.syntax = "use [source]"
      c.description = "Use source"

      c.action do |args, _|
        name = args[0]
        use = gem.use(name)
        if use
          puts "GSM: Source `#{use}` has been applied."
        else
          Gsm::Util.error("Illegal source `#{name}`.")
        end
      end
    end

    command :add do |c|
      c.syntax = "add [name] [url]"
      c.description = "Add source"

      c.option "use", "--use", "Add and use source"

      c.action do |args, opts|
        name = args[0]
        url = args[1]
        is_use = opts["use"]

        if args.size < 2
          Gsm::Util.error("Illegal name/url.")
          return
        end

        if gem.add(name, url)
          if is_use
            if !gem.use(name)
              Gsm::Util.error("Illegal source `#{name}`.")
            end
          end

          puts "Gem #{name}: #{url} added."
        else
          Gsm::Util.error("Illegal name/url.")
        end
      end
    end

    command :del do |c|
      c.syntax = "del [source]"
      c.description = "Delete source"

      c.action do |args, _|
        name = args[0]
        ret = gem.del(name)
        if ret == false
          Gsm::Util.error("Source is in use. Please switch to other source in advance.")
          return
        elsif ret == nil
          Gsm::Util.error("No source name with `#{name}`.")
          return
        end
      end
    end

    command :reset do |c|
      c.syntax = "reset"
      c.description = "Reset all sources"

      c.action do |_, _|
        gem.reset
        puts "All gems are reset."
      end
    end

    command :mirror do |c|
      c.syntax = "mirror [source]"
      c.description = "Mirror source for Bundler"

      c.option "reset", "--reset", "Reset bundler mirror"

      c.action do |args, opts|
        if opts["reset"]
          Gsm::Bundle.reset
          return
        end

        if args.size == 0
          name = gem.get
          if name.empty?
            Gsm::Util.error("no default source for mirror.")
            return
          else
            puts "No specified source: use default `#{name}`."
          end
        else
          name = args[0]
        end
        if Gsm::Bundle.mirror(gem.sources[name]).empty?
          puts "`#{name}` has been set mirror for bundler."
          puts
          puts "Use `bundle config` to check."
        end
      end
    end

    command :help do |c|
      c.syntax = "help"
      c.description = "Show usage"

      c.action do |_, _|
        puts "gsm sources manager"
        puts
        puts "gsm <subcommand> [options]"
        puts
        puts "Options:"
        puts "\t--version"
        puts "\t--help"
        puts
        puts "Subcommands:"
        puts "\tlist"
        puts "\tuse"
        puts "\tadd"
        puts "\tlist"
        puts "\tdel"
        puts "\treset"
        puts "\tmirror"
      end
    end

    alias_command :rm, :del
    alias_command :remove, :del

    run!
  end
end

Application.new.run if $0 == __FILE__