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duplicate-csv-column.rb
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duplicate-csv-column.rb
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#! /usr/bin/env ruby
# Copyright (c) 2010 Michael Specht
#
# This file is part of Proteomatic.
#
# Proteomatic is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Proteomatic is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Proteomatic. If not, see <http://www.gnu.org/licenses/>.
require './include/ruby/proteomatic'
require './include/ruby/externaltools'
require './include/ruby/misc'
require './include/ruby/ext/fastercsv'
require 'yaml'
require 'fileutils'
class DuplicateCsvColumn < ProteomaticScript
def run()
colA = stripCsvHeader(@param[:columnA])
colB = @param[:columnB]
@output.each_pair do |inPath, outPath|
File::open(outPath, 'w') do |fout|
File::open(inPath, 'r') do |fin|
headerLine = fin.readline
headerList = headerLine.parse_csv()
header = mapCsvHeader(headerLine)
indexA = header[colA]
indexB = header[colB]
if !indexA
puts "Error: A column named '#{@param[:columnA]}' was not found in #{inPath}."
exit 1
end
if indexB
puts "Error: A column named '#{@param[:columnB]}' is already contained in #{inPath}."
exit 1
end
headerList << colB
fout.puts headerList.to_csv
print "Duplicating entries from column '#{@param[:columnA]}'..."
fin.each_line do |line|
lineArray = line.parse_csv()
lineArray << lineArray[indexA]
fout.puts lineArray.to_csv
end
puts 'done.'
end
end
end
end
end
script = DuplicateCsvColumn.new