Class: Guard::Guardfile::Generator

Inherits:
Object
  • Object
show all
Defined in:
lib/guard/guardfile/generator.rb

Overview

This class is responsible for generating the Guardfile and adding Guard’ plugins’ templates into it.

See Also:

Defined Under Namespace

Classes: Error, NoSuchPlugin

Constant Summary collapse

INFO_TEMPLATE_ADDED = 
"%s template added to Guardfile, feel free to edit it"
GUARDFILE_TEMPLATE =

The Guardfile template for ‘guard init`

File.expand_path(
  "../../../guard/templates/Guardfile",
  __FILE__
)

Instance Method Summary collapse

Instance Method Details

#create_guardfile ⇒ Object

Creates the initial Guardfile template when it does not already exist.

See Also:



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# File 'lib/guard/guardfile/generator.rb', line 65

def create_guardfile
  path = Pathname.new("Guardfile").expand_path
  if path.exist?
    _ui(:error, "Guardfile already exists at #{path}")
    abort
  end

  _ui(:info, "Writing new Guardfile to #{path}")
  FileUtils.cp(GUARDFILE_TEMPLATE, path.to_s)
end

#initialize_all_templates ⇒ Object

Adds the templates of all installed Guard implementations to an existing Guardfile.

See Also:



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# File 'lib/guard/guardfile/generator.rb', line 117

def initialize_all_templates
  PluginUtil.plugin_names.each { |g| initialize_template(g) }
end

#initialize_template(plugin_name) ⇒ Object

Adds the Guardfile template of a Guard plugin to an existing Guardfile.

Parameters:

  • plugin_name (String) —

    the name of the Guard plugin or template to initialize

See Also:



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# File 'lib/guard/guardfile/generator.rb', line 83

def initialize_template(plugin_name)
  guardfile = Pathname.new("Guardfile")

  plugin_util = PluginUtil.new(plugin_name)
  # TODO: change to "valid?" method
  plugin_class = plugin_util.plugin_class(fail_gracefully: true)
  if plugin_class
    begin
      plugin_util.add_to_guardfile
    rescue Errno::ENOENT => error
      # TODO: refactor
      template = plugin_class.template(plugin_util.plugin_location)
      _ui(:error, "Found class #{plugin_class} but loading it's template"\
        "failed: '#{template}'")
      _ui(:error, "Error is: #{error}")
      return
    end
    return
  end

  template_code = (HOME_TEMPLATES + plugin_name).read
  guardfile.binwrite(format("\n%s\n", template_code), open_args: ["a"])

  _ui(:info, format(INFO_TEMPLATE_ADDED, plugin_name))

rescue Errno::ENOENT
  fail NoSuchPlugin, plugin_name.downcase
end