Class: Singer::OptionParsing

Inherits:
Object
  • Object
show all
Defined in:
lib/singer/option_parsing.rb

Overview

extracts what we need from ARGV

Constant Summary collapse

DEFAULT_TEMPLATE_NAME = 
'tdd'.freeze

Class Method Summary collapse

Class Method Details

.columnize_hash(hash) ⇒ Object 



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# File 'lib/singer/option_parsing.rb', line 44

def self.columnize_hash(hash)
  first_column_width = hash.keys.map(&:length).max
  hash.each do |k, v|
    puts "#{k.to_s.ljust(first_column_width)} #{v}"
  end
end

.configure(argvies) ⇒ Object

rubocop:disable Metrics/AbcSize,Metrics/MethodLength

Raises:



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# File 'lib/singer/option_parsing.rb', line 6

def self.configure(argvies) # rubocop:disable Metrics/AbcSize,Metrics/MethodLength
  options = {}
  OptionParser.new do |parser|
    parser.banner = "      Usage: \#{$PROGRAM_NAME} [OPTION]... [TEMPLATE_NAME] PROJECT_NAME\n      Generates a project from a multi-file template.\n      PROJECT_NAME can be in snake_case or CamelCase.\n\n      Options:\n    USAGE\n    parser.on('--list-templates', 'list all available templates') do\n      list_all_templates\n      Kernel.exit\n    end\n    parser.on('--show-paths', 'show paths used to load files') do\n      show_paths\n      Kernel.exit\n    end\n    parser.on('--list-variables', 'list all variables available to templates') do\n      list_variables\n      Kernel.exit\n    end\n  end.parse!(argvies, into: options)\n\n  raise NameMissingError, 'Missing mandatory argument PROJECT_NAME' if argvies.empty?\n\n  encase_name(argvies.pop)\n  CONFIGURATION.template_name = argvies.shift || DEFAULT_TEMPLATE_NAME\nend\n"

.encase_name(name) ⇒ Object 



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# File 'lib/singer/option_parsing.rb', line 55

def self.encase_name(name)
  CONFIGURATION.project_name_original = name
  CONFIGURATION.project_name_snakecase = name.gsub(/(\w)([A-Z])/){ "#{$1}_#{$2}" }.gsub(/_+/, '_').downcase
  CONFIGURATION.project_name_camelcase = CONFIGURATION.project_name_snakecase.split('_').map(&:capitalize).join
end

.list_all_templates ⇒ Object 



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# File 'lib/singer/option_parsing.rb', line 36

def self.list_all_templates
  columnize_hash(Template.all.transform_values(&:path))
end

.list_variables ⇒ Object 



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# File 'lib/singer/option_parsing.rb', line 51

def self.list_variables
  puts CONFIGURATION.members
end

.show_paths ⇒ Object 



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# File 'lib/singer/option_parsing.rb', line 40

def self.show_paths
  columnize_hash(%w[singer_config_dir templates_from_user templates_from_gem].to_h{ [_1, Paths.send(_1)] })
end