48 lines
4.7 KiB
Markdown
48 lines
4.7 KiB
Markdown
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# license
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The `license` stanza is not free-form. A single value must be chosen from a list of valid symbols.
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The values for `license` are categories, rather than fully-specified licenses. For example, `:gpl` is a category; we do not distinguish between versions of the GPL. Similarly, `:cc` and `:bsd` comprise many variants. They must always pertain to the license of the software itself, not the vendor’s business model (a free app to access a paid service is still `:gratis`, not `:freemium`).
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The `license` stanza is intended as an aid to search/filtering of Casks. For full and complete information, the user must always rely on the vendor’s homepage.
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Note that `brew cask search` and `brew cask list` are not yet capable of using the information stored in the `license` stanza.
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## Generic Category Licenses
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Cask authors should use the most specific license category which is also correct. Generic categories are provided for difficult cases. `:unknown` is also perfectly fine if you are unsure.
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Example: [Chromium](https://www.chromium.org/chromium-os/licenses) includes code with multiple licenses, all of which are open source. Chromium licensing is described by the generic category [`:oss`](https://github.com/caskroom/homebrew-cask/blob/54a79f7dcceea9a922a5b608ac99466b9d10a191/Casks/chromium.rb#L7).
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| symbol | meaning |
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| ----------- | ----------- |
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| `:oss` | open-source software
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| `:closed` | closed-source software
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| `:unknown` | license unknown
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| `:other` | license is known, but fits no category
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## Valid Licenses
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| symbol | generic category | meaning | URL |
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| ---------------- | ---------------- | ------------------------------------------------------------------ | ----------- |
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| `:gratis` | `:closed` | free-to-use, closed source | <none>
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| `:commercial` | `:closed` | not free to use | <none>
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| `:freemium` | `:closed` | free-to-use, payment required for full or additional functionality | <https://en.wikipedia.org/wiki/Freemium>
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| `:affero` | `:oss` | Affero General Public License | <https://gnu.org/licenses/agpl.html>
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| `:apache` | `:oss` | Apache Public License | <https://www.apache.org/licenses/>
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| `:arphic` | `:oss` | Arphic Public License | <http://www.arphic.com/tw/download/public_license.rar>
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| `:artistic` | `:oss` | Artistic License | <https://dev.perl.org/licenses/artistic.html>
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| `:bsd` | `:oss` | BSD License | <http://www.linfo.org/bsdlicense.html>
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| `:cc` | `:oss` | Creative Commons License | <https://creativecommons.org/licenses/>
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| `:eclipse` | `:oss` | Eclipse Public License | <https://www.eclipse.org/legal/eplfaq.php>
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| `:gpl` | `:oss` | GNU Public License | <https://www.gnu.org/copyleft/gpl.html>
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| `:isc` | `:oss` | Internet Systems Consortium License | <https://www.isc.org/downloads/software-support-policy/isc-license/>
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| `:lppl` | `:oss` | LaTeX Project Public License | <https://latex-project.org/lppl/>
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| `:ncsa` | `:oss` | University of Illinois/NCSA Open Source License | <http://otm.illinois.edu/uiuc_openSource>
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| `:mit` | `:oss` | MIT License | <https://opensource.org/licenses/MIT>
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| `:mpl` | `:oss` | Mozilla Public License | <https://www.mozilla.org/MPL/>
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| `:ofl` | `:oss` | SIL Open Font License | <https://scripts.sil.org/OFL>
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| `:public_domain` | `:oss` | not copyrighted | <https://creativecommons.org/publicdomain/zero/1.0/legalcode>
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| `:ubuntu_font` | `:oss` | Ubuntu Font License | <http://font.ubuntu.com/licence/>
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| `:x11` | `:oss` | X Consortium License | <http://www.xfree86.org/3.3.6/COPYRIGHT2.html>
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