Add new task to help carto.js v3 development

Gruntfile.js

@@ -342,6 +342,11 @@ module.exports = function (grunt) {
     'manifest'
   ]);
 
+  grunt.registerTask('editor-cdb', [
+    'editor',
+    'watch:cdb'
+  ]);
+
   registerCmdTask('npm-start', {cmd: 'npm', args: ['run', 'start']});
   registerCmdTask('npm-build', {cmd: 'npm', args: ['run', 'build']});
   registerCmdTask('npm-build-static', {cmd: 'npm', args: ['run', 'build:static']});

lib/build/tasks/watch.js

@@ -73,6 +73,19 @@ exports.task = function () {
         spawn: false,
         atBegin: false
       }
+    },
+    cdb: {
+      files: [
+        'lib/assets/javascripts/cdb/**/*'
+      ],
+      tasks: [
+        'cdb',
+        'dev-editor'
+      ],
+      options: {
+        spawn: false,
+        atBegin: false
+      }
     }
   };
 };

package.json

@@ -218,6 +218,7 @@
     "carto-node": "NODE_ENV=production webpack --progress --config webpack/carto-node/webpack.config.js",
     "dev": "NODE_ENV=development webpack --progress --watch --config webpack/v4/webpack.dev.config.js",
     "dev:editor": "grunt editor",
+    "dev:editor:cdb": "grunt editor-cdb",
     "dev:static": "webpack --progress --watch --config webpack/static-pages/webpack.dev.config.js",
     "profile": "NODE_ENV=production webpack --profile --json --config webpack/v4/webpack.prod.config.js > compilation-stats.json",
     "fix-shrinkwrap-protocol": "node ./lib/build/fix-shrinkwrap.js"