From 16fb3928533c02d11a23d748f838f386d0a813fd Mon Sep 17 00:00:00 2001
From: Atemu <atemu.main@gmail.com>
Date: Tue, 20 Jul 2021 21:20:59 +0200
Subject: [PATCH] lib.licenses: introduce `redistributable` attribute

Allows for distinction of licenses that are unfree overall but do grant the
right to redistribute. Defaults to the freeness of the license.

Note: Many unfree but are redistributable licenses aren't marked as such.
I expect that to be fixed in a distributed manner over time.

Closes https://github.com/NixOS/nixpkgs/pull/97789
---
 lib/licenses.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/licenses.nix b/lib/licenses.nix
index 5f5cf3490cf7..ce970c58fd5f 100644
--- a/lib/licenses.nix
+++ b/lib/licenses.nix
@@ -13,9 +13,11 @@ lib.mapAttrs (lname: lset: let
       if license ? spdxId
       then license // { url = "https://spdx.org/licenses/${license.spdxId}.html"; }
       else license;
+    applyRedistributable = license: { redistributable = license.free; } // license;
   in lib.pipe licenseDeclaration [
     applyDefaults
     applySpdx
+    applyRedistributable
   ];
 in mkLicense lset) ({
   /* License identifiers from spdx.org where possible.