Rake tasks to list gems and their licenses. It also supports exporting to csv format.
The format is two columns: gem name and the license. If a gem has multiple licenses, they are listed as multiple lines.
The following rake task will list the gems and their licenses
rake license:list
The following rake task will export the gems and their licenses to license.csv.
rake license:export
You can also specify your own file name.
rake license:export[my_license.csv]