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#!/usr/bin/env ruby
require 'csv'
def join_csv_files(output_path, input_paths)
return if input_paths.empty?
input_csvs = input_paths.map do |input_path|
CSV.read(input_path, headers: true)
end
CSV.open(output_path, "w", headers: input_csvs.first.headers, write_headers: true) do |output_csv|
input_csvs.each do |input_csv|
input_csv.each do |line|
output_csv << line
end
end
end
end
join_csv_files('tmp/memory_test/report.csv', Dir['tmp/memory_test/*.csv'].sort)
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