languages/jinja: init (#1359)

modules/plugins/languages/default.nix

@@ -21,6 +21,7 @@ in {
     ./html.nix
     ./haskell.nix
     ./java.nix
+    ./jinja.nix
     ./json.nix
     ./lua.nix
     ./markdown.nix

modules/plugins/languages/jinja.nix

@@ -0,0 +1,65 @@
+{
+  config,
+  pkgs,
+  lib,
+  ...
+}: let
+  inherit (builtins) attrNames;
+  inherit (lib.meta) getExe;
+  inherit (lib.modules) mkIf mkMerge;
+  inherit (lib.options) mkEnableOption mkOption;
+  inherit (lib.types) enum listOf;
+  inherit (lib.nvim.types) mkGrammarOption;
+  inherit (lib.nvim.attrsets) mapListToAttrs;
+
+  cfg = config.vim.languages.jinja;
+  defaultServers = ["jinja-lsp"];
+  servers = {
+    jinja-lsp = {
+      enable = true;
+      cmd = [(getExe pkgs.jinja-lsp)];
+      filetypes = ["jinja"];
+      root_markers = [
+        ".git"
+      ];
+    };
+  };
+in {
+  options.vim.languages.jinja = {
+    enable = mkEnableOption "Jinja template language support";
+
+    treesitter = {
+      enable = mkEnableOption "Jinja treesitter" // {default = config.vim.languages.enableTreesitter;};
+      package = mkGrammarOption pkgs "jinja";
+      inlinePackage = mkGrammarOption pkgs "jinja_inline";
+    };
+
+    lsp = {
+      enable = mkEnableOption "Jinja LSP support" // {default = config.vim.lsp.enable;};
+      servers = mkOption {
+        description = "Jinja LSP server to use";
+        type = listOf (enum (attrNames servers));
+        default = defaultServers;
+      };
+    };
+  };
+
+  config = mkIf cfg.enable (mkMerge [
+    (mkIf cfg.treesitter.enable {
+      vim.treesitter.enable = true;
+      vim.treesitter.grammars = [
+        cfg.treesitter.package
+        cfg.treesitter.inlinePackage
+      ];
+    })
+
+    (mkIf cfg.lsp.enable {
+      vim.lsp.servers =
+        mapListToAttrs (n: {
+          name = n;
+          value = servers.${n};
+        })
+        cfg.lsp.servers;
+    })
+  ]);
+}