From eeed5686b294c51d3e35fdd982f51da1c91c47ba Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Alu=C3=ADsio=20Augusto=20Silva=20Gon=C3=A7alves?=
 <aluisio@aasg.name>
Date: Tue, 14 Jul 2020 04:14:56 -0300
Subject: [PATCH] Publish SPDX licensing metadata

---
 default.nix         | 39 ++++++++++++++++++++++++++++-----------
 pages/about-site.md |  3 +++
 2 files changed, 31 insertions(+), 11 deletions(-)

diff --git a/default.nix b/default.nix
index e1afeb4..533b146 100644
--- a/default.nix
+++ b/default.nix
@@ -8,27 +8,44 @@
     (
       pkgs.nix-gitignore.gitignoreFilter ''
         /*
+        # For building
         !/haunt.scm
         !/assets/
         !/pages/
         !/posts/
         !/scm/
         !/static/
+        # For licensing information
+        !/*.nix
+        !/LICENSES/
+        !/.reuse/
       '' ./.
     ) ./.
 }:
 let
-  drv = pkgs.runCommand "aasg-blog"
-    {
-      nativeBuildInputs = [ aasg-pkgs.haunt pkgs.pandoc ];
-      LANG = "C.UTF-8";
-      GUILE_LOAD_PATH = "${aasg-pkgs.guile-json}/share/guile/site";
-      GUILE_COMPILED_LOAD_PATH = "${aasg-pkgs.guile-json}/share/guile/site/site-ccache";
-    } ''
-    cd ${src}
-    export HAUNT_DESTDIR=$out
-    haunt build
-  '';
+  drv = pkgs.stdenvNoCC.mkDerivation {
+    name = "aasg-blog";
+    inherit src;
+
+    LANG = "C.UTF-8";
+    GUILE_LOAD_PATH = "${aasg-pkgs.guile-json}/share/guile/site";
+    GUILE_COMPILED_LOAD_PATH = "${aasg-pkgs.guile-json}/share/guile/site/site-ccache";
+
+    nativeBuildInputs = [ aasg-pkgs.haunt pkgs.pandoc pkgs.reuse ];
+    buildPhase = ''
+      cd $src
+      export HAUNT_DESTDIR=$out
+      haunt build
+      reuse spdx -o $out/files/reuse.spdx
+    '';
+
+    doCheck = true;
+    checkPhase = ''
+      reuse --root=${src} lint
+    '';
+
+    dontInstall = true;
+  };
   ciDeps = with pkgs; [ ipfs ipfs-cluster libarchive ];
 in
 pkgs.recurseIntoAttrs (drv // { inherit ciDeps; })
diff --git a/pages/about-site.md b/pages/about-site.md
index 3b97bb5..59225d8 100644
--- a/pages/about-site.md
+++ b/pages/about-site.md
@@ -11,6 +11,8 @@ Fragments of software source code are in addition released under the [CC0 1.0 Un
 
 The source code for the programs that build this website is © 2020 Aluísio Augusto Silva Gonçalves and can be redistributed and/or modified under the terms of the [GNU General Public License, version 3][GPL] or (at your option) any later version published by the Free Software Foundation.
 
+We also publish the complete [licensing information] for this site's source, in SPDX format.
+
 [Automated builds]: https://builds.sr.ht/~aasg/haunted-blog
 [CC-BY-SA]: https://creativecommons.org/licenses/by-sa/4.0/
 [CC0]: https://creativecommons.org/publicdomain/zero/1.0/
@@ -18,6 +20,7 @@ The source code for the programs that build this website is © 2020 Aluísio Aug
 [GPL]: https://www.gnu.org/licenses/gpl-3.0.html
 [Haunt]: https://dthompson.us/projects/haunt.html
 [IPFS]: https://ipfs.io
+[Licensing information]: files/reuse.spdx
 [Nix]: https://nixos.org
 [Source code]: https://git.sr.ht/~aasg/haunted-blog
 [Sourcehut]: https://sourcehut.org
-- 
2.30.2