From a777982b17ca555cb2a33e5828f8dc9cca302430 Mon Sep 17 00:00:00 2001
From: Minijackson <minijackson@riseup.net>
Date: Thu, 4 Nov 2021 10:45:06 +0100
Subject: factorize build instructions

---
 beamer/flake.nix | 116 +++++--------------------------------------------------
 1 file changed, 10 insertions(+), 106 deletions(-)

(limited to 'beamer')

diff --git a/beamer/flake.nix b/beamer/flake.nix
index d5e1614..b2c472e 100644
--- a/beamer/flake.nix
+++ b/beamer/flake.nix
@@ -2,115 +2,19 @@
   description = "My epic presentation";
 
   inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
-  inputs.beamertheme-metropolis = {
-    url = "github:matze/mtheme";
-    flake = false;
-  };
-  inputs.draculaTheme = {
-    url = "github:dracula/pygments";
-    flake = false;
-  };
-  inputs.pandoc-templates = {
-    url = "github:minijackson/pandoc-templates";
-    flake = false;
-  };
+  inputs.pandoc-nix-templates.url = "github:minijackson/pandoc-nix-templates";
 
-  outputs = { self, nixpkgs, beamertheme-metropolis, draculaTheme, pandoc-templates, }:
+  outputs = { self, nixpkgs, pandoc-nix-templates, }:
     let
-      pkgs = nixpkgs.legacyPackages.x86_64-linux;
+      pkgs = import nixpkgs {
+        system = "x86_64-linux";
+        overlays = [ pandoc-nix-templates.overlay ];
+      };
     in
     {
-
-      packages.x86_64-linux.pygments = pkgs.python3Packages.pygments.overrideAttrs (oldAttrs: {
-        postPatch = ''
-          cp ${draculaTheme}/dracula.py pygments/styles/
-          sed -i 's/bg:.\+ //' pygments/styles/inkpot.py
-        '';
-      });
-
-      defaultPackage.x86_64-linux =
-        let
-          beamertheme-metropolis' = pkgs.stdenvNoCC.mkDerivation {
-            pname = "texlive-beamertheme-metropolis";
-            version = "${builtins.substring 0 8 beamertheme-metropolis.lastModifiedDate}-${beamertheme-metropolis.shortRev or "dirty"}";
-
-            src = beamertheme-metropolis;
-
-            outputs = [ "out" "doc" ];
-
-            nativeBuildInputs = with pkgs; [
-              (texlive.combine {
-                inherit (texlive)
-                  scheme-small
-                  enumitem
-                  fileinfo
-                  latexmk;
-              })
-            ];
-
-            passthru = {
-              pname = "beamertheme-metropolis";
-              tlType = "run";
-            };
-
-            DESTDIR = placeholder "out";
-
-            dontConfigure = true;
-          };
-        in
-        pkgs.runCommand "slides"
-          {
-            src = ./.;
-            nativeBuildInputs = with pkgs; [
-              pandoc
-              self.packages.x86_64-linux.pygments
-              fira-code
-              which
-              (texlive.combine {
-                inherit (texlive)
-                  scheme-medium
-                  latexmk
-
-                  beamercolorthemeowl
-
-                  # For framed code listings
-                  tcolorbox environ
-
-                  # Optional pandoc dependencies
-                  microtype upquote parskip xurl bookmark footnotehyper
-
-                  # Some dependencies
-                  fvextra pgfopts minted catchfile xstring framed;
-                beamertheme-metropolis = { pkgs = [ beamertheme-metropolis' ]; };
-              })
-            ];
-
-            FONTCONFIG_FILE = pkgs.makeFontsConf {
-              fontDirectories = with pkgs; [ lmodern freefont_ttf fira fira-code ];
-            };
-          } ''
-          unpackFile $src
-          cd */
-          chmod -R u+w .
-
-          pandoc slides.md -t beamer -so slides.tex  \
-            --template=${pandoc-templates}/default.latex \
-            --lua-filter=${pkgs.pandoc-lua-filters}/share/pandoc/filters/minted.lua \
-            --pdf-engine=xelatex \
-            --pdf-engine-opt=-aux-directory=./build \
-            --pdf-engine-opt=-shell-escape
-
-          latexmk \
-            -shell-escape \
-            -xelatex \
-            -8bit \
-            -interaction=nonstopmode \
-            -verbose \
-            -file-line-error \
-            -output-directory=./build slides
-
-          cp build/slides.pdf $out
-        '';
-      # TODO: diagram-generator?
+      defaultPackage.x86_64-linux = pkgs.mkPandocBeamerPdf {
+        name = "slides";
+        src = ./.;
+      };
     };
 }
-- 
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