class Opsup::CLI

Public Class Methods

create() click to toggle source
# File lib/opsup/cli.rb, line 12
def self.create
  new(
    app: Opsup::App.create,
    option_builder: Opsup::CLI::OptionBuilder.create,
    env_vars: ENV.to_h,
  )
end
new(app:, option_builder:, env_vars:) click to toggle source
# File lib/opsup/cli.rb, line 27
def initialize(app:, option_builder:, env_vars:)
  @app = T.let(app, Opsup::App)
  @option_builder = T.let(option_builder, Opsup::CLI::OptionBuilder)
  @env_vars = T.let(env_vars, T::Hash[String, T.nilable(String)])
end

Public Instance Methods

run(argv) click to toggle source
# File lib/opsup/cli.rb, line 34
def run(argv)
  parser = create_parser
  @option_builder.define_options(parser)

  options = @option_builder.options_from_env_vars(@env_vars)
  begin
    # It automatically exits with a help message if necessary.
    commands = parser.parse(argv, into: options)
  rescue OptionParser::MissingArgument => e
    puts e.message
    return false
  end

  begin
    config = @option_builder.generate_config(options)
    @app.run(commands, config)
  rescue Opsup::Error => e
    puts "Error: #{e.message}"
    return false
  end

  true
end

Private Instance Methods

create_parser() click to toggle source
# File lib/opsup/cli.rb, line 59
            def create_parser
      # ref: https://docs.ruby-lang.org/en/2.1.0/OptionParser.html
      OptionParser.new do |p|
        p.version = Opsup::VERSION
        p.on_head(<<~HEAD)
          CLI to run Chef commands easily for your OpsWorks stacks.
          Usage:
            opsup [options] [commands...]
          Commands:
            #{@app.available_commands.join(', ')}
          Example:
            opsup -s stack-name deploy

          Options:
        HEAD
        p.on_tail(<<~TAIL)
          Environment variables:
            You can also specify options via environment variables
            with the prefix 'OPSUP_'.
            For example: OPSUP_STACK, OPSUP_AWS_CRED, and so on.
        TAIL
      end
    end