modules/spellfiles: init

update-scripts/default.nix

@@ -27,4 +27,5 @@ lib.fix (self: {
   none-ls-builtins = pkgs.callPackage ./none-ls.nix { };
   rust-analyzer-options = pkgs.callPackage ./rust-analyzer { };
   lspconfig-servers = pkgs.callPackage ./nvim-lspconfig { };
+  fetch-spellfiles = pkgs.callPackage ./fetch-spellfiles.nix { };
 })

update-scripts/fetch-spellfiles.nix

@@ -0,0 +1,44 @@
+{
+  writeShellApplication,
+  curl,
+  nix,
+  ...
+}:
+writeShellApplication {
+  name = "fetch-spellfiles";
+
+  runtimeInputs = [
+    curl
+    nix
+  ];
+
+  text = ''
+    echo "{"
+
+    BASE_URL="https://ftp.nluug.nl/pub/vim/runtime/spell/"
+
+    html=$(curl -s "$BASE_URL")
+
+    # Extract only .spl and .sug file links
+    readarray -t filenames < <(echo "$html" | grep -oP '(?<=href=")[^"]+\.(spl|sug)' | sort -u)
+
+    for filename in "''${filenames[@]}"; do
+
+      url="$BASE_URL$filename"
+
+      # Special characters (like '%40', standing for `@`) are invalid for nix store paths
+      # -> We replace all non-alphanumeric characters with '_' and used this sanitized filename for
+      # the derivation name
+      sanitized_filename="''${filename//[^a-zA-Z0-9]/_}"
+      sha256=$(nix-prefetch-url "$url" --name "$sanitized_filename")
+
+      hash=$(nix hash convert --to sri --hash-algo sha256 "$sha256")
+
+      # Ugly hardcoding of the `%40` -> `@` substitution
+      filename="''${filename//%40/@}"
+      echo -e "  \"$filename\": { url: \"$url\", hash: \"$hash\" },"
+    done
+
+    echo "}"
+  '';
+}

update-scripts/generate.nix

@@ -1,9 +1,11 @@
 {
+  lib,
   writeShellApplication,
   rust-analyzer-options,
   efmls-configs-sources,
   none-ls-builtins,
   lspconfig-servers,
+  fetch-spellfiles,
   nixfmt-rfc-style,
   nodePackages,
 }:
@@ -49,6 +51,12 @@ writeShellApplication {
     echo "lspconfig servers"
     prettier --parser=json "${lspconfig-servers}" >"$generated_dir/lspconfig-servers.json"
 
+    echo "fetching spellfiles"
+    ${lib.getExe fetch-spellfiles} > "$generated_dir/spellfiles.json"
+    prettier --parser=json --write "$generated_dir/spellfiles.json"
+
+    ################################################################
+
     if [ -n "$commit" ]; then
       cd "$generated_dir"
       git add .