ruby -i -pe '$_.gsub!(/(?<!:):(\w+)\s*=>/, "\\1:")' **/*.rb
さようならハッシュロケットさん！
More than 5 years have passed since last update.
ハッシュロケット :foo => bar を foo: bar へ一斉置換するワンライナ
Last updated at Posted at 2013-03-08
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