Finds the license agreements for all gems in your Gemfile. This is achieved by running through a collection of strategies for each dependency until one succeeds in determining the license in use.
Strategies:
- from_gem_specification
- from_license_file
- from_scraping_homepage
- from_parsing_readme
Example output:
$ deriving_license ~/Code/rails_sample_app/Gemfile
Determining license for rails:
Trying from_gem_specification strategy...FAILED
Trying from_scraping_homepage strategy...SUCCESS
Determining license for adt:
Trying from_gem_specification strategy...FAILED
Trying from_scraping_homepage strategy...FAILED
Trying from_license_file strategy...CUSTOM
Determining license for app_constants:
Trying from_gem_specification strategy...FAILED
Trying from_scraping_homepage strategy...SUCCESS
Determining license for bcrypt-ruby:
Trying from_gem_specification strategy...FAILED
Trying from_scraping_homepage strategy...FAILED
Trying from_license_file strategy...CUSTOM
...
Detected 4 known licenses:
MIT: Expat License (14 instances)[http://directory.fsf.org/wiki/License:Expat]
Ruby: Ruby License (6 instances)[http://www.ruby-lang.org/en/about/license.txt]
BSD: FreeBSD Copyright (2 instances)[http://www.freebsd.org/copyright/freebsd-license.html]
GPL: GNU General Public License (2 instances)[http://en.wikipedia.org/wiki/GNU_General_Public_License]
The following dependencies have custom licenses: adt, bcrypt-ruby, bootstrap-sass, rack-protection, sqlite3