[enh] themes static content refactor

searx/static/themes/oscar/gruntfile.js

@@ -0,0 +1,51 @@
+module.exports = function(grunt) {
+
+  grunt.initConfig({
+    pkg: grunt.file.readJSON('package.json'),
+    concat: {
+      options: {
+        separator: ';'
+      },
+      dist: {
+        src: ['js/searx_src/*.js'],
+        dest: 'js/searx.js'
+      }
+    },
+    uglify: {
+      options: {
+        banner: '/*! oscar/searx.min.js | <%= grunt.template.today("dd-mm-yyyy") %> | https://github.com/asciimoo/searx */\n'
+      },
+      dist: {
+        files: {
+          'js/searx.min.js': ['<%= concat.dist.dest %>']
+        }
+      }
+    },
+    jshint: {
+      files: ['gruntfile.js', 'js/searx_src/*.js'],
+      options: {
+        // options here to override JSHint defaults
+        globals: {
+          jQuery: true,
+          console: true,
+          module: true,
+          document: true
+        }
+      }
+    },
+    watch: {
+      files: ['<%= jshint.files %>'],
+      tasks: ['jshint']
+    }
+  });
+
+  grunt.loadNpmTasks('grunt-contrib-uglify');
+  grunt.loadNpmTasks('grunt-contrib-jshint');
+  grunt.loadNpmTasks('grunt-contrib-watch');
+  grunt.loadNpmTasks('grunt-contrib-concat');
+
+  grunt.registerTask('test', ['jshint']);
+
+  grunt.registerTask('default', ['jshint', 'concat', 'uglify']);
+
+};