module MetricFu::Utility
Constants
- ESCAPE_CODES_PATTERN
Public Instance Methods
binread(file)
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# File lib/metric_fu/utility.rb, line 50 def binread(file) File.binread(file) end
capture_output(stream = STDOUT) { || ... }
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From episode 029 of Ruby Tapas by Avdi rubytapas.dpdcart.com/subscriber/post?id=88
# File lib/metric_fu/utility.rb, line 56 def capture_output(stream = STDOUT, &_block) old_stdout = stream.clone pipe_r, pipe_w = IO.pipe pipe_r.sync = true output = "" reader = Thread.new do begin loop do output << pipe_r.readpartial(1024) end rescue EOFError end end stream.reopen(pipe_w) yield ensure stream.reopen(old_stdout) pipe_w.close reader.join pipe_r.close return output end
clean_ascii_text(text)
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Removes non-ASCII characters
# File lib/metric_fu/utility.rb, line 10 def clean_ascii_text(text) if text.respond_to?(:encode) # avoids invalid multi-byte escape error ascii_text = text.encode("ASCII", invalid: :replace, undef: :replace, replace: "") # see http://www.ruby-forum.com/topic/183413 pattern = Regexp.new('[\x80-\xff]', nil, "n") ascii_text.gsub(pattern, "") else text end end
glob(*args)
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# File lib/metric_fu/utility.rb, line 42 def glob(*args) Dir.glob(*args) end
load_yaml(file)
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# File lib/metric_fu/utility.rb, line 46 def load_yaml(file) YAML.load_file(file) end
mkdir_p(*args)
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# File lib/metric_fu/utility.rb, line 38 def mkdir_p(*args) FileUtils.mkdir_p(*args) end
rm_rf(*args)
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# File lib/metric_fu/utility.rb, line 34 def rm_rf(*args) FileUtils.rm_rf(*args) end
stringify_keys(hash)
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# File lib/metric_fu/utility.rb, line 22 def stringify_keys(hash) result = {} hash.each do |key, value| result[key.to_s] = value end result end
strip_escape_codes(text)
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# File lib/metric_fu/utility.rb, line 30 def strip_escape_codes(text) text.gsub(ESCAPE_CODES_PATTERN, "") end