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Versions: 29
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Contents
module Eco
class CLI
class Scripting
module ArgsHelpers
def argv
@argv || ARGV
end
def is_modifier?(value)
Argument.is_modifier?(value)
end
def arguments
@arguments ||= Arguments.new(argv)
end
def stop_on_unknown!(exclude: [], only_options: false)
# validate only those that are options
unknown = arguments.unknown(exclude: exclude)
if only_options
unknown = unknown..select {|arg| is_modifier?(arg)}
end
unless unknown.empty?
raise "There are unknown options in your command line arguments: #{unknown}"
end
end
def get_arg_index(key)
return nil if !argv.include?(key)
argv.index(key)
end
def get_arg(key, with_param: false, valid: true)
# track what a known option looks like
arguments.add(key, with_param: with_param)
return nil unless index = get_arg_index(key)
value = true
if with_param
value = argv[index + 1]
#puts "modifier argument: #{value}"
value = nil if valid && is_modifier?(value)
end
return value
end
def get_file(key, required: false, should_exist: true)
filename = get_arg(key, with_param: true)
if !filename && required
puts "You need to specify a file '#{key} file'"
exit(1)
elsif !file_exists?(filename) && should_exist && required
puts "This file doesn't exist '#{filename}'"
exit(1)
end
filename = File.expand_path(filename) if filename && should_exist
filename
end
private
def file_exists?(filename)
File.exists?(filename) || File.exists?(File.expand_path(filename))
end
end
end
end
end
Version data entries
29 entries across 29 versions & 1 rubygems