зеркало из https://github.com/github/ruby.git
35 строки
820 B
Ruby
35 строки
820 B
Ruby
require 'erb'
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require 'optparse'
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require 'fileutils'
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timestamp = nil
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output = nil
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ifchange = nil
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opt = OptionParser.new do |o|
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o.on('-t', '--timestamp[=PATH]') {|v| timestamp = v || true}
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o.on('-o', '--output=PATH') {|v| output = v}
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o.on('-c', '--[no-]if-change') {|v| ifchange = v}
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o.order!(ARGV)
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end
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template = ARGV.shift or abort opt.to_s
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erb = ERB.new(File.read(template), nil, '%')
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erb.filename = template
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result = erb.result
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if output
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if ifchange and (IO.read(output) rescue nil) == result
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puts "#{output} unchanged"
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else
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open(output, "wb") {|f| f.print result}
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puts "#{output} updated"
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end
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if timestamp
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if timestamp == true
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dir, base = File.split(output)
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timestamp = File.join(dir, ".time." + base)
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end
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FileUtils.touch(timestamp)
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end
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else
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print result
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end
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