{
	"Js": {
		// SrcPath is path of source file
		"SrcPath": "static_source/js",
		// DistPath is path of compressed file
		"DistPath": "static/js",
		// SrcURL is url prefix of source file
		"SrcURL": "static_source/js",
		// DistURL is url prefix of compressed file
		"DistURL": "static/js",
		"Groups": {
			// lib is the name of this compress group
			"lib": {
				// all compressed file will combined and save to DistFile
				"DistFile": "lib.min.js",
				// source files of this group
				"SourceFiles": [
					"jquery.min.js",
					"bootstrap.js",
					"lib.min.js",
					"jStorage.js"
				],
				// skip compress file list
				"SkipFiles": [
					"jquery.min.js",
					"lib.min.js"
				]
			},
			"app": {
				"DistFile": "app.min.js",
				"SourceFiles": [
					"main.js",
					"editor.js"
				]
			}
		}
	},
	"Css": {
		// config of css is same with js
		"SrcPath": "static_source/css",
		"DistPath": "static/css",
		"SrcURL": "static_source/css",
		"DistURL": "static/css",
		"Groups": {
			"lib": {
				"DistFile": "lib.min.css",
				"SourceFiles": [
					"bootstrap.css",
					"bootstrap-theme.css",
					"font-awesome.min.css",
					"select2.css"
				],
				"SkipFiles": [
					"font-awesome.min.css",
					"select2.css"
				]
			}
		}
	}
}

$ go build app.go
$ ./app compress
compress command usage:

    js     - compress all js files
    css    - compress all css files
    all    - compress all files

$ ./app compress js -h
Usage of compress command: js:
  -force=false: force compress file
  -skip=false: skip all cached file
  -v=false: verbose info

$ ./app compress css -h
Usage of compress command: css:
  -force=false: force compress file
  -skip=false: skip all cached file
  -v=false: verbose info

use -force for re-create dist file but not skip cached.
use -skip can skip all cached file and re-compress.