Nixify build process

Building the website in the presence of the Nix package manager is now
as simple as:

- cloning this repo
- entering the nix-shell environment declared by `shell.nix`
- calling `generate`
- optionally call `preview` to spawn a webserver in `target/99_result`

All dependencies such as the internal InputXSLT, StaticXSLT and
BuildXSLT modules as well as external ones such as KaTeX and pandoc are
built declaratively by Nix.

1 files changed, 9 insertions, 0 deletions

diff --git a/pkgs/preview.nix b/pkgs/preview.nix
new file mode 100644
index 0000000..7162838
--- /dev/null
+++ b/pkgs/preview.nix
@@ -0,0 +1,9 @@
+{ pkgs, ... }:
+
+pkgs.writeScriptBin
+  "preview"
+  ''
+    pushd target/99_result
+    ${pkgs.python3}/bin/python -m http.server 8080
+    popd
+  ''