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require_relative 'vpath'
require_relative 'colorize'
class Output
attr_reader :path, :vpath
def initialize
@path = @timestamp = @ifchange = @color = nil
@vpath = VPath.new
end
def def_options(opt)
opt.on('-o', '--output=PATH') {|v| @path = v}
opt.on('-t', '--timestamp[=PATH]') {|v| @timestamp = v || true}
opt.on('-c', '--[no-]if-change') {|v| @ifchange = v}
opt.on('--color') {@color = true}
@vpath.def_options(opt)
end
def write(data)
unless @path
$stdout.print data
return true
end
color = Colorize.new(@color)
unchanged = color.pass("unchanged")
updated = color.fail("updated")
if @ifchange and (@vpath.read(@path, "rb") == data rescue false)
puts "#{@path} #{unchanged}"
written = false
else
File.binwrite(@path, data)
puts "#{@path} #{updated}"
written = true
end
if timestamp = @timestamp
if timestamp == true
dir, base = File.split(@path)
timestamp = File.join(dir, ".time." + base)
end
File.binwrite(timestamp, '')
File.utime(nil, nil, timestamp)
end
written
end
end
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