class Karafka::Cli::Install

Install Karafka Cli action

Constants

INSTALL_DIRS

Directories created by default

INSTALL_FILES_MAP

Where should we map proper files from templates

Public Class Methods

new(*args) click to toggle source

@param args [Array] all the things that Thor CLI accepts

Calls superclass method Karafka::Cli::Base::new
# File lib/karafka/cli/install.rb, line 31
def initialize(*args)
  super
  @rails = Bundler::LockfileParser.new(
    Bundler.read_file(
      Bundler.default_lockfile
    )
  ).dependencies.key?('rails')
end

Public Instance Methods

call() click to toggle source

Install all required things for Karafka application in current directory

# File lib/karafka/cli/install.rb, line 41
def call
  INSTALL_DIRS.each do |dir|
    FileUtils.mkdir_p Karafka.root.join(dir)
  end

  INSTALL_FILES_MAP.each do |source, target|
    target = Karafka.root.join(target)

    template = File.read(Karafka.core_root.join("templates/#{source}"))
    # @todo Replace with the keyword argument version once we don't have to support
    # Ruby < 2.6
    render = ::ERB.new(template, nil, '-').result(binding)

    File.open(target, 'w') { |file| file.write(render) }
  end
end
rails?() click to toggle source

@return [Boolean] true if we have Rails loaded This allows us to generate customized karafka.rb template with some tweaks specific for Rails

# File lib/karafka/cli/install.rb, line 61
def rails?
  @rails
end