Nix mode

demo/kitchen-sink/doclist.js

@@ -151,7 +151,8 @@ var docs = {
     "docs/julia.js": "Julia",
     "docs/prolog.plg": "Prolog",
     "docs/rust.rs": "Rust",
-    "docs/twig.twig": "Twig"
+    "docs/twig.twig": "Twig",
+    "docs/Nix.nix": "Nix"
 };
 
 var ownSource = {

demo/kitchen-sink/docs/Nix.nix

@@ -0,0 +1,57 @@
+{
+  # Name of our deployment
+  network.description = "HelloWorld";
+  # Enable rolling back to previous versions of our infrastructure
+  network.enableRollback = true;
+
+  # It consists of a single server named 'helloserver'
+  helloserver =
+    # Every server gets passed a few arguments, including a reference
+    # to nixpkgs (pkgs)
+    { config, pkgs, ... }:
+    let
+      # We import our custom packages from ./default passing pkgs as argument
+      packages = import ./default.nix { pkgs = pkgs; };
+      # This is the nodejs version specified in default.nix
+      nodejs   = packages.nodejs;
+      # And this is the application we'd like to deploy
+      app      = packages.app;
+    in
+    {
+      # We'll be running our application on port 8080, because a regular
+      # user cannot bind to port 80
+      # Then, using some iptables magic we'll forward traffic designated to port 80 to 8080
+      networking.firewall.enable = true;
+      # We will open up port 22 (SSH) as well otherwise we're locking ourselves out
+      networking.firewall.allowedTCPPorts = [ 80 8080 22 ];
+      networking.firewall.allowPing = true;
+
+      # Port forwarding using iptables
+      networking.firewall.extraCommands = ''
+        iptables -t nat -A PREROUTING -p tcp --dport 80 -j REDIRECT --to-port 8080
+      '';
+
+      # To run our node.js program we're going to use a systemd service
+      # We can configure the service to automatically start on boot and to restart
+      # the process in case it crashes
+      systemd.services.helloserver = {
+        description = "Hello world application";
+        # Start the service after the network is available
+        after = [ "network.target" ];
+        # We're going to run it on port 8080 in production
+        environment = { PORT = "8080"; };
+        serviceConfig = {
+          # The actual command to run
+          ExecStart = "${nodejs}/bin/node ${app}/server.js";
+          # For security reasons we'll run this process as a special 'nodejs' user
+          User = "nodejs";
+          Restart = "always";
+        };
+      };
+
+      # And lastly we ensure the user we run our application as is created
+      users.extraUsers = {
+        nodejs = { };
+      };
+    };
+}

lib/ace/mode/nix.js

@@ -29,7 +29,7 @@
  *
  * Contributor(s):
  * 
- *
+ *    Zef Hemel
  *
  * ***** END LICENSE BLOCK ***** */
 

lib/ace/mode/nix_highlight_rules.js

@@ -1,10 +1,10 @@
 define(function(require, exports, module) {
-"use strict";
+    "use strict";
 
-var oop = require("../lib/oop");
+    var oop = require("../lib/oop");
-var TextHighlightRules = require("./text_highlight_rules").TextHighlightRules;
+    var TextHighlightRules = require("./text_highlight_rules").TextHighlightRules;
 
-var NixHighlightRules = function() {
+    var NixHighlightRules = function() {
 
         var constantLanguage = "true|false";
         var keywordControl = "with|import|if|else|then";
@@ -24,6 +24,9 @@ var NixHighlightRules = function() {
                     token: "comment",
                     regex: /\/\*/,
                     next: "comment"
+                }, {
+                    token: "constant",
+                    regex: "<[^>]+>"
                 }, {
                     regex: "(==|!=|<=?|>=?)",
                     token: ["keyword.operator.comparison.nix"]
@@ -44,7 +47,7 @@ var NixHighlightRules = function() {
                 }, {
                     token: "string",
                     regex: '"',
-            next: "qqstring"
+                    push: "qqstring"
                 }, {
                     token: "constant.numeric", // hex
                     regex: "0[xX][0-9a-fA-F]+\\b"
@@ -54,6 +57,12 @@ var NixHighlightRules = function() {
                 }, {
                     token: keywordMapper,
                     regex: "[a-zA-Z_$][a-zA-Z0-9_$]*\\b"
+                }, {
+                    regex: "}",
+                    token: function(val, start, stack) {
+                        return stack[1] == "qqstring" ? "constant.language.escape" : "text"
+                    },
+                    next: "pop"
                 }],
             "comment": [{
                 token: "comment", // closing comment
@@ -63,43 +72,48 @@ var NixHighlightRules = function() {
                 token: "comment", // comment spanning whole line
                 regex: ".+"
             }],
-        "qqdoc": [{
+            "qqdoc": [
+                {
                     token: "constant.language.escape",
-            regex: /\$\{[^}]+\}/
+                    regex: /\$\{/,
+                    push: "start"
                 }, {
                     token: "string",
                     regex: "''",
-            next: "start"
+                    next: "pop"
                 }, {
                     defaultToken: "string"
                 }],
-
+            "qqstring": [
-        "qqstring": [{
+                {
                     token: "constant.language.escape",
-            regex: /\$\{[^}]+\}/
+                    regex: /\$\{/,
+                    push: "start"
                 }, {
                     token: "string",
                     regex: '"',
-            next: "start"
+                    next: "pop"
                 }, {
                     defaultToken: "string"
                 }],
-
+            "qstring": [
-        "qstring": [{
+                {
                     token: "constant.language.escape",
-            regex: /\$\{[^}]+\}/
+                    regex: /\$\{/,
+                    push: "start"
                 }, {
                     token: "string",
                     regex: "'",
-            next: "start"
+                    next: "pop"
                 }, {
                     defaultToken: "string"
                 }]
         };
 
-};
+        this.normalizeRules();
+    };
 
-oop.inherits(NixHighlightRules, TextHighlightRules);
+    oop.inherits(NixHighlightRules, TextHighlightRules);
 
-exports.NixHighlightRules = NixHighlightRules;
+    exports.NixHighlightRules = NixHighlightRules;
 });

lib/ace/snippets/nix.js

@@ -0,0 +1,7 @@
+define(function(require, exports, module) {
+"use strict";
+
+exports.snippetText = require("../requirejs/text!./nix.snippets");
+exports.scope = "nix";
+
+});