feat(neovim): add hypr grammar

common/home/neovim/default.nix

@@ -4,14 +4,22 @@
   ...
 }: let
   # installs a vim plugin from git with a given tag / branch
-  plugin = owner: repo: rev: hash:
+  plugin = src:
     pkgs.vimUtils.buildVimPlugin {
-      pname = "${lib.strings.sanitizeDerivationName repo}";
-      version = rev;
-      src = pkgs.fetchFromGitHub {
-        inherit rev owner repo hash;
+      pname = "${lib.strings.sanitizeDerivationName src.repo}";
+      version = src.rev;
+      inherit src;
     };
+
+  buildGrammar = name: grammar:
+    pkgs.callPackage ./grammar.nix {} {
+      language = grammar.language or name;
+      version = grammar.src.rev;
+      src = grammar.src;
+      location = grammar.location or null;
+      generate = grammar.generate or false;
     };
+
   fileContents = lib.strings.fileContents;
 in {
   # TODO: make a gradle module and have java in device-vars.nix
@@ -48,6 +56,7 @@ in {
         nodePackages.npm
         nodePackages.neovim
         gradle
+        gcc
 
         bat
 
@@ -134,7 +143,30 @@ in {
       extraConfig = fileContents ./base.vim;
       extraLuaConfig = fileContents ./base.lua;
 
-      plugins = with pkgs.vimPlugins; [
+      plugins = let
+        # custom packages
+        hypr-src = pkgs.fetchFromGitHub {
+          owner = "luckasRanarison";
+          repo = "tree-sitter-hypr";
+          rev = "90b3ddf8a85b5ea3d9dc4920fddb16182a192e14";
+          hash = "sha256-ErFs2eCC0eZEyDldrTUj4JJ0Eu+exDHNQx4g8WXh/UQ=";
+        };
+
+        tree-sitter-hypr = plugin hypr-src;
+
+        hypr-grammar = buildGrammar "hypr" {
+          src = hypr-src;
+          generate = true;
+        };
+
+        indent-blankline = plugin (pkgs.fetchFromGitHub {
+          owner = "lukas-reineke";
+          repo = "indent-blankline.nvim";
+          rev = "046e2cf04e08ece927bacbfb87c5b35c0b636546";
+          hash = "sha256-bhoep8aTYje5K/dZ/XmpwBPn4PBEMPrmw33QJdfFe6M=";
+        });
+      in
+        with pkgs.vimPlugins; [
           # Coc configured
           coc-css
           coc-eslint
@@ -193,16 +225,20 @@ in {
           }
           nvim-treesitter-context
           nvim-treesitter-textobjects
+          {
+            plugin = tree-sitter-hypr;
+            type = "lua";
+            config = ''
+              vim.treesitter.language.require_language("hypr", "${hypr-grammar}/parser")
+            '';
+          }
           {
             plugin = nvim-treesitter.withAllGrammars;
             type = "viml";
             config = fileContents ./plugins/treesitter.vim;
           }
           {
-          plugin =
-            plugin "lukas-reineke" "indent-blankline.nvim"
-            "046e2cf04e08ece927bacbfb87c5b35c0b636546"
-            "sha256-bhoep8aTYje5K/dZ/XmpwBPn4PBEMPrmw33QJdfFe6M=";
+            plugin = indent-blankline;
             type = "lua";
             config = fileContents ./plugins/indent.lua;
           }

common/home/neovim/grammar.nix

@@ -0,0 +1,62 @@
+{ stdenv
+, nodejs
+, tree-sitter
+, lib
+}:
+
+# https://github.com/NixOS/nixpkgs/blob/master/pkgs/development/tools/parsing/tree-sitter/grammar.nix
+# Build a parser grammar and put the resulting shared object in `$out/parser`
+
+{
+  # language name
+  language
+, version
+, src
+, location ? null
+, generate ? false
+, ...
+}@args:
+
+stdenv.mkDerivation ({
+  pname = "${language}-grammar";
+
+  inherit src version;
+
+  nativeBuildInputs = lib.optionals generate [ nodejs tree-sitter ];
+
+  CFLAGS = [ "-Isrc" "-O2" ];
+  CXXFLAGS = [ "-Isrc" "-O2" ];
+
+  stripDebugList = [ "parser" ];
+
+  configurePhase = lib.optionalString (location != null) ''
+    cd ${location}
+  '' + lib.optionalString generate ''
+    tree-sitter generate
+  '';
+
+  # When both scanner.{c,cc} exist, we should not link both since they may be the same but in
+  # different languages. Just randomly prefer C++ if that happens.
+  buildPhase = ''
+    runHook preBuild
+    if [[ -e src/scanner.cc ]]; then
+      $CXX -fPIC -c src/scanner.cc -o scanner.o $CXXFLAGS
+    elif [[ -e src/scanner.c ]]; then
+      $CC -fPIC -c src/scanner.c -o scanner.o $CFLAGS
+    fi
+    $CC -fPIC -c src/parser.c -o parser.o $CFLAGS
+    rm -rf parser
+    $CXX -shared -o parser *.o
+    runHook postBuild
+  '';
+
+  installPhase = ''
+    runHook preInstall
+    mkdir $out
+    mv parser $out/
+    if [[ -d queries ]]; then
+      cp -r queries $out
+    fi
+    runHook postInstall
+  '';
+} // removeAttrs args [ "language" "location" "generate" ])

common/home/neovim/plugins/treesitter.vim

@@ -1,8 +1,12 @@
 lua << EOF
 
+local path = "/home/matt/.cache/nvim/"
+
 require('nvim-treesitter.configs').setup({
   highlight = { enable = true },
-  indent = { enable = true }
+  indent = { enable = true },
+  parser_install_dir = path,
+  auto_install = true,
 })
 
 require('treesitter-context').setup({
@@ -11,6 +15,7 @@ require('treesitter-context').setup({
   min_window_height = 20,
 })
 
+vim.opt.runtimepath:append(path)
 EOF
 
 " Add line under context