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License: MIT License
Very simple library to calculate and validate Luhn numbers
License: MIT License
Some companies will only use gems with a certain license.
The canonical and easy way to check is via the gemspec
via e.g.
spec.license = 'MIT'
# or
spec.licenses = ['MIT', 'GPL-2']
Bundler now generates gems with a default 'MIT' license. There is even a License Finder
to help companies ensure all gems they use meet their licensing needs. This tool depends on license information being available in the gemspec.
Including a license in your gemspec is a good practice, in any case.
If you need help choosing a license, github has created a license picker tool
How did I find you?
I'm using a script to collect stats on gems, originally looking for download data, but decided to collect licenses too,
and make issues for gemspecs not specifying a license as a public service :)
So far it's going pretty well.
I've written a blog post about it
Just forked and adopted your project for Crystal language.
https://github.com/akzhan/luhn.cr
Have a nice day.
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