feat: add graphviz support

codgician · May 16, 2024 · ec4d515 · ec4d515
1 parent beef6fc
commit ec4d515
Show file tree

Hide file tree

Showing 3 changed files with 36 additions and 5 deletions.
diff --git a/lib/default.nix b/lib/default.nix
@@ -6,7 +6,7 @@
       concatAttrs = attrList: builtins.foldl' (x: y: x // y) { } attrList;
     in
     concatAttrs [
-      (import ./revealjs.nix)
+      (import ./reveal-js.nix)
       (import ./filesystem.nix { inherit lib; })
       (import ./misc.nix { inherit lib; })
       (import ./site.nix)

diff --git a/lib/revealjs.nix → lib/reveal-js.nix b/lib/revealjs.nix → lib/reveal-js.nix
@@ -19,10 +19,11 @@
       pname = name;
       inherit version src;
 
+      buildInputs = with pkgs; [ pandoc graphviz ];
       installPhase =
         let
-          mdPath = "${src}/slides.md";
-          args = builtins.concatStringsSep " " ([
+          luaFiltersPath = "${pkgs.pandoc-lua-filters}/share/pandoc/filters";
+          pandocArgs = builtins.concatStringsSep " " ([
             # Use reveal.js from input
             "--variable"
             "revealjs-url=./assets/reveal.js"
@@ -33,15 +34,20 @@
             # Code highlight theme
             "--highlight-style=zenburn"
 
+            # Set slide level
             "--slide-level ${builtins.toString slideLevel}"
+
+            # Add Lua filters
+            "--lua-filter"
+            "${luaFiltersPath}/diagram-generator.lua"
           ] ++ builtins.attrValues (builtins.mapAttrs (k: v: "-V ${k}=${builtins.toString v}") pandocVariables));
         in
         ''
           mkdir -p $out/assets
           ln -s ${reveal-js} $out/assets/reveal.js
           ln -s ${pkgs.nodePackages.katex}/lib/node_modules/katex/dist $out/assets/katex-dist
-          ${pkgs.pandoc}/bin/pandoc -s -t revealjs -o $out/index.html ${mdPath} ${args}
-        '' + builtins.concatStringsSep "\n" (builtins.map (folder: "ln -s ${folder} $out/${builtins.baseNameOf folder}") additonalFolders);
+          ${pkgs.pandoc}/bin/pandoc --embed-resources -s -t revealjs -o $out/index.html slides.md ${pandocArgs}
+        '' + builtins.concatStringsSep "\n" (builtins.map (dir: "ln -s ${dir} $out/${builtins.baseNameOf dir}") additonalFolders);
 
       meta = {
         inherit license;

diff --git a/slides/nix-intro/slides.md b/slides/nix-intro/slides.md
@@ -5,6 +5,31 @@ subtitle: Declarative builds and deployments
 date: 2024.05.20
 ---
 
+# Test GraphViz
+
+```{ .graphviz caption="This is an image, created by **Graphviz**'s dot." }
+digraph finite_state_machine {
+	rankdir=LR;
+	size="8,5"
+	node [shape = doublecircle]; LR_0 LR_3 LR_4 LR_8;
+	node [shape = circle];
+	LR_0 -> LR_2 [ label = "SS(B)" ];
+	LR_0 -> LR_1 [ label = "SS(S)" ];
+	LR_1 -> LR_3 [ label = "S($end)" ];
+	LR_2 -> LR_6 [ label = "SS(b)" ];
+	LR_2 -> LR_5 [ label = "SS(a)" ];
+	LR_2 -> LR_4 [ label = "S(A)" ];
+	LR_5 -> LR_7 [ label = "S(b)" ];
+	LR_5 -> LR_5 [ label = "S(a)" ];
+	LR_6 -> LR_6 [ label = "S(b)" ];
+	LR_6 -> LR_5 [ label = "S(a)" ];
+	LR_7 -> LR_8 [ label = "S(b)" ];
+	LR_7 -> LR_5 [ label = "S(a)" ];
+	LR_8 -> LR_6 [ label = "S(b)" ];
+	LR_8 -> LR_5 [ label = "S(a)" ];
+}
+```
+
 # Software deployment
 
 ::: { .incremental }