Class: Git::Trac::Pager

Inherits:
Object
  • Object
show all
Defined in:
lib/git/trac/pager.rb

Constant Summary collapse

DIFF_COLORS = 
{
  :reset      => "\033[m",
  :plain      => "",
  :meta       => "\033[1m",
  :frag       => "\033[36m",
  :old        => "\033[31m",
  :new        => "\033[32m",
  :commit     => "\033[33m",
  :whitespace => "\033[41m"
}

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(command = nil) ⇒ Pager

Returns a new instance of Pager.



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# File 'lib/git/trac/pager.rb', line 31

def initialize(command = nil)
  @command = command || ENV["PAGER"] || "less"
  @command = nil if @command.empty?
end

Instance Attribute Details

#command ⇒ Object (readonly)

Returns the value of attribute command.



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# File 'lib/git/trac/pager.rb', line 29

def command
  @command
end

Instance Method Details

#page(body, diff = false) ⇒ Object 



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# File 'lib/git/trac/pager.rb', line 36

def page(body, diff = false)
  less = ENV["LESS"]
  ENV["LESS"] ||= "FRSX"

  return $stdout.puts(body) unless $stdout.tty?

  if command.nil?
    output_to_io($stdout, body, diff)
  else
    IO.popen(command, "w") do |io|
      output_to_io(io, body, diff)
    end
  end

rescue Errno::EPIPE
  # Pager was terminated
ensure
  ENV["LESS"] = less
end