Fall is a modern take on CLI-based data processing. It tries hard not to be another DSL you need to learn, but rather just |'s and the ruby you already know.

Install the gem and add to the application's Gemfile by executing:

bundle add fall

If bundler is not being used to manage dependencies, install the gem by executing:

gem install fall

Example:

seq 5 | fall -e 'a + 1 | a, a'  

# produces:
#
# 2, 2
# 3, 3
# 4, 4
# 5, 5
# 6, 6

After checking out the repo, run bin/setup to install dependencies. Then, run rake test 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/gillisd/fall.

The gem is available as open source under the terms of the MIT License.