Class: TConsole::Util

Inherits:
Object
  • Object
show all
Defined in:
lib/tconsole/util.rb

Class Method Summary collapse

Class Method Details

.detect_terminal_size ⇒ Object

Returns [width, height] of terminal when detected, nil if not detected. Think of this as a simpler version of Highline’s Highline::SystemExtensions.terminal_size()

This is a copy of HIRB’s terminal size detection code: github.com/cldwalker/hirb/blob/master/lib/hirb/util.rb



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# File 'lib/tconsole/util.rb', line 7

def self.detect_terminal_size
  if (ENV['COLUMNS'] =~ /^\d+$/) && (ENV['LINES'] =~ /^\d+$/)
    [ENV['COLUMNS'].to_i, ENV['LINES'].to_i]
  elsif (RUBY_PLATFORM =~ /java/ || (!STDIN.tty? && ENV['TERM'])) && command_exists?('tput')
    [`tput cols`.to_i, `tput lines`.to_i]
  elsif STDIN.tty? && command_exists?('stty')
    `stty size`.scan(/\d+/).map { |s| s.to_i }.reverse
  else
    nil
  end
rescue
  nil
end

.filter_backtrace(backtrace) ⇒ Object

Public: Filters a backtrace to exclude things that happened in TConsole

backtrace: The backtrace array that we’re filtering.

Returns the updated backtrace.



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# File 'lib/tconsole/util.rb', line 26

def self.filter_backtrace(backtrace)
  tconsole_path = File.expand_path(File.join(File.dirname(__FILE__), "..", "..")) + File::SEPARATOR
  backtrace.select do |item|
    !item.start_with?(tconsole_path)
  end
end