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hernan/change_utf8_signature.rake

Created December 2, 2015 00:11
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  1. hernan created this gist Dec 2, 2015.
    29 changes: 29 additions & 0 deletions change_utf8_signature.rake
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,29 @@
    desc "Set the magic encoding comment everywhere to UTF-8"
    task :source_encoding do
    shebang = '\s*#!.*?(\n|\r\n)'
    magic_regex = /\A(#{shebang})?\s*(#\W*(en)?coding:.*?$)/mi

    magic_comment = '#-- encoding: UTF-8'

    (Dir['script/**/**'] + Dir['**/**{.rb,.rake}']).each do |file_name|
    next unless File.file?(file_name)

    # We don't skip code here, as we need ALL code files to have UTF-8
    # source encoding
    file_content = File.read(file_name)
    if file_content =~ magic_regex
    file_content.gsub!(magic_regex, "\\1#{magic_comment}")
    else
    if file_content.start_with?("#!")
    # We have a shebang. Encoding comment is to put on the second line
    file_content.sub!(/(\n|\r\n)/, "\\1#{magic_comment}\\1")
    else
    file_content = magic_comment + "\n" + file_content
    end
    end

    File.open(file_name, "w") do |file|
    file.write file_content
    end
    end
    end