Replace words in text files in a directory with replacements in csv file

text_replacer.rb

require 'fileutils'

inputDirectory = "/home/ellyll/Dropbox/Arbrofion/TextReplacer"
outputDirectory = "/tmp/ReplacedFiles"
replacementsFile = "/home/ellyll/Dropbox/Arbrofion/TextReplacer/replacements.csv"

# Read replacements csv file
replacements = File.readlines(replacementsFile).collect {|line| line.chomp.split(",") }
replacements.each {|r| puts "replace \"#{r[0]}\" with \"#{r[1]}\"" }


# Get a list of all the files and directories in the inputDirectory (recursively) and keep only the files
files = Dir.glob("#{inputDirectory}/**/*").keep_if {|f| File.file?(f) }

files.each do |f|
    # Get the full name of the output file to be written in the output directory
    newfilename = outputDirectory + f[inputDirectory.length, f.length-inputDirectory.length]
    # Get the directory path and create directories as needed
    newfiledir = File.dirname(newfilename)
    unless Dir.exist?(newfiledir)
        FileUtils.mkdir_p(newfiledir)
    end

    print "Doing: #{f} to #{newfilename}\n"
    outfile = File.open(newfilename, 'w')
    File.foreach(f) do |line|
        str = line
        replacements.each do |r|
            str.gsub!(r[0], r[1])
        end
        outfile.puts str
    end
    outfile.close()
end