docs: make base URL configurable through Nix

Makefile

@@ -1,3 +1,5 @@
+BASEURL := "https://foo-dogsquared.github.io/nix-module-wrapper-manager-fds"
+
 .PHONY: docs-serve
 docs-serve:
 	hugo -s docs/website serve
@@ -8,7 +10,7 @@ docs-build:
 
 .PHONY: build
 build:
-	{ command -v nix >/dev/null && nix build -f docs/ website; } || { nix-build docs/ -A website; }
+	{ command -v nix >/dev/null && nix build -f docs/ --argstr baseUrl $(BASEURL) website; } || { nix-build docs/ -A website --argstr baseUrl $(BASEURL); }
 
 .PHONY: check
 check:

docs/default.nix

@@ -106,6 +106,8 @@ in
         ];
       };
     in
+    { baseUrl ? "https://foo-dogsquared.github.io/nix-module-wrapper-manager-fds" }:
+
     buildHugoSite {
       pname = "wrapper-manager-docs";
       version = "2024-07-13";
@@ -124,6 +126,8 @@ in
 
       vendorHash = "sha256-qsmXolxEcYjY2jwIlPRqir5gE8TeVknPGIGF4g89x54=";
 
+      buildFlags = [ "--baseURL" baseUrl ];
+
       nativeBuildInputs = [
         asciidoctorWrapped
         gems

docs/hugo-build-module.nix

@@ -279,7 +279,7 @@ let
       buildPhase =
         args.buildPhase or ''
           runHook preBuild
-          hugo "''${buildFlags[@]}" --destination public
+          hugo ''${buildFlags[@]} --destination public
           runHook postBuild
         '';