add deploy script for homepage

docs/deploy-docs.nix

@@ -0,0 +1,35 @@
+{
+  writeShellScriptBin,
+  coreutils,
+  openssh,
+  rsync,
+  lib,
+  docs,
+}:
+
+writeShellScriptBin "deploy-docs" ''
+  export PATH="${
+    lib.makeBinPath [
+      coreutils
+      openssh
+      rsync
+    ]
+  }"
+
+  if [ -n "$SSH_HOMEPAGE_KEY" ]; then
+    echo "$SSH_HOMEPAGE_KEY" > ./ssh_key
+    chmod 600 ./ssh_key
+    sshExtraArgs="-i ./ssh_key"
+  else
+    sshExtraArgs=
+  fi
+
+  rsync \
+    -e "ssh -o StrictHostKeyChecking=no $sshExtraArgs" \
+    -a ${docs}/ \
+    www@clan.lol:/var/www/docs.clan.lol
+
+  if [ -e ./ssh_key ]; then
+    rm ./ssh_key
+  fi
+''

docs/flake-module.nix

@@ -1,11 +1,17 @@
 { inputs, ... }:
 {
   perSystem =
-    { self', pkgs, ... }:
+    {
+      config,
+      self',
+      pkgs,
+      ...
+    }:
     {
       devShells.docs = pkgs.callPackage ./shell.nix { inherit (self'.packages) docs; };
       packages = {
         docs = pkgs.python3.pkgs.callPackage ./default.nix { inherit (inputs) nixpkgs; };
+        deploy-docs = pkgs.callPackage ./deploy-docs.nix { inherit (config.packages) docs; };
       };
     };
 }