module IOStreams::Utils

Constants

MAX_TEMP_FILE_NAME_ATTEMPTS

Public Class Methods

blank?(value) click to toggle source

Helper method: Returns [true|false] if a value is blank?

# File lib/io_streams/utils.rb, line 15
def self.blank?(value)
  if value.nil?
    true
  elsif value.is_a?(String)
    value !~ /\S/
  else
    value.respond_to?(:empty?) ? value.empty? : !value
  end
end
load_soft_dependency(gem_name, stream_type, require_name = gem_name) click to toggle source

Lazy load dependent gem so that it remains a soft dependency.

# File lib/io_streams/utils.rb, line 8
def self.load_soft_dependency(gem_name, stream_type, require_name = gem_name)
  require require_name
rescue LoadError => e
  raise(LoadError, "Please install the gem '#{gem_name}' to support #{stream_type}. #{e.message}")
end
temp_file_name(basename, extension = "") { |tmpname| ... } click to toggle source

Yields the path to a temporary file_name.

File is deleted upon completion if present.

# File lib/io_streams/utils.rb, line 28
def self.temp_file_name(basename, extension = "")
  result = nil
  ::Dir::Tmpname.create([basename, extension], IOStreams.temp_dir, max_try: MAX_TEMP_FILE_NAME_ATTEMPTS) do |tmpname|
    result = yield(tmpname)
  ensure
    ::File.unlink(tmpname) if ::File.exist?(tmpname)
  end
  result
end