Contents

require "ggem/version"
require "ggem/cli/clirb"
require "ggem/cli/commands"

module GGem

  class CLI

    COMMANDS = CommandSet.new{ |unknown| InvalidCommand.new(unknown) }.tap do |c|
      c.add(GenerateCommand, "generate", "g")
      c.add(BuildCommand,    "build",    "b")
      c.add(InstallCommand,  "install",  "i")
      c.add(PushCommand,     "push",     "p")
      c.add(TagCommand,      "tag",      "t")
      c.add(ReleaseCommand,  "release",  "r")
    end

    def self.run(args)
      self.new.run(args)
    end

    def initialize(kernel = nil, stdout = nil, stderr = nil)
      @kernel = kernel || Kernel
      @stdout = stdout || $stdout
      @stderr = stderr || $stderr
    end

    def run(args)
      begin
        cmd_name = args.shift
        cmd = COMMANDS[cmd_name]
        cmd.run(args)
      rescue CLIRB::HelpExit
        @stdout.puts cmd.help
      rescue CLIRB::VersionExit
        @stdout.puts GGem::VERSION
      rescue CLIRB::Error, ArgumentError, InvalidCommandError => exception
        display_debug(exception)
        @stderr.puts "#{exception.message}\n\n"
        @stdout.puts cmd.help
        @kernel.exit 1
      rescue CommandExitError
        @kernel.exit 1
      rescue StandardError => exception
        @stderr.puts "#{exception.class}: #{exception.message}"
        @stderr.puts exception.backtrace.join("\n")
        @kernel.exit 1
      end
      @kernel.exit 0
    end

    private

    def display_debug(exception)
      if ENV["DEBUG"]
        @stderr.puts "#{exception.class}: #{exception.message}"
        @stderr.puts exception.backtrace.join("\n")
      end
    end

  end

end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
ggem-1.9.1	lib/ggem/cli.rb
ggem-1.9.0	lib/ggem/cli.rb