Index a csv file by indentifying repeated rows based on column values. Output the indexed csv to a new file.
Using the -m flag, pass in a comma separated list of the fields for matches of row. For example if you want to match on phone, pass -m phone, or phone & email, -m phone,email.
The colums whose name contain the desired matches will be selected as the matching columns. Email1, Email2 ... ect, will match -m email.
An Id column is added to the CSV, the value of which represents the matching records. All records with the same id have matched based on the -m option given to the gem.
The resulting CSV file is named the same as the input file with the _index appended to it. It is created in the same directory as the input file.
Add this line to your application's Gemfile:
gem 'csv-indexer'And then execute:
$ bundle install
Or install it yourself as:
$ gem install csv-indexer
Local from executable:
./exe/csv-indexer -h
./exe/csv-indexer -i file -m column1,column2
Local from gem:
bundle exec rake install:local
csv-indexer -h
csv-indexer -i file -m column1,column2
After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.
To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and the created tag, and push the .gem file to rubygems.org.
Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/csv-indexer. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the code of conduct.
The gem is available as open source under the terms of the MIT License.
Everyone interacting in the Csv::Indexer project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.