зеркало из https://github.com/github/ruby.git
66 строки
1.8 KiB
Ruby
66 строки
1.8 KiB
Ruby
require_relative 'vpath'
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require_relative 'colorize'
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class Output
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attr_reader :path, :vpath
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def initialize
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@path = @timestamp = @ifchange = @color = nil
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@overwrite = @create_only = false
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@vpath = VPath.new
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end
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COLOR_WHEN = {
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'always' => true, 'auto' => nil, 'never' => false,
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nil => true, false => false,
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}
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def def_options(opt)
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opt.separator(" Output common options:")
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opt.on('-o', '--output=PATH') {|v| @path = v}
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opt.on('-t', '--timestamp[=PATH]') {|v| @timestamp = v || true}
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opt.on('-c', '--[no-]if-change') {|v| @ifchange = v}
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opt.on('--[no-]color=[WHEN]', COLOR_WHEN.keys) {|v| @color = COLOR_WHEN[v]}
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opt.on('--[no-]create-only') {|v| @create_only = v}
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opt.on('--[no-]overwrite') {|v| @overwrite = v}
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@vpath.def_options(opt)
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end
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def write(data, overwrite: @overwrite, create_only: @create_only)
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unless @path
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$stdout.print data
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return true
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end
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color = Colorize.new(@color)
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unchanged = color.pass("unchanged")
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updated = color.fail("updated")
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outpath = nil
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if (@ifchange or overwrite or create_only) and (@vpath.open(@path, "rb") {|f|
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outpath = f.path
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if @ifchange or create_only
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original = f.read
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(@ifchange and original == data) or (create_only and !original.empty?)
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end
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} rescue false)
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puts "#{outpath} #{unchanged}"
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written = false
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else
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unless overwrite and outpath and (File.binwrite(outpath, data) rescue nil)
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File.binwrite(outpath = @path, data)
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end
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puts "#{outpath} #{updated}"
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written = true
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end
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if timestamp = @timestamp
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if timestamp == true
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dir, base = File.split(@path)
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timestamp = File.join(dir, ".time." + base)
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end
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File.binwrite(timestamp, '')
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File.utime(nil, nil, timestamp)
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end
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written
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end
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end
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