grunt-fast-watch

similar to grunt-contrib-watch, but faster.

Why Another Watch?

grunt-contrib-watch somtime didn't capture fs event (in windows). And, it too slow for my purpose.

I using fast-watch to restart server for reloading source code in development.

I am impatience, so made this.

Features

• fast, fast, fast!
• surely capture fs event in windows.
• watch dir, not file
• support ignore setting(git ignore style, visit ignore)
• call different task by file path matching
• didn't unwatch when call tasks
• after running tasks, restart fastWatch task ( without redundant watch )

Getting Started

If you haven't used grunt before, be sure to check out the Getting Started guide, as it explains how to create a gruntfile as well as install and use grunt plugins. Once you're familiar with that process, install this plugin with this command:

$ npm install --save-dev grunt-fast-watch

Once the plugin has been installed, it may be enabled inside your Gruntfile with this line of JavaScript:

grunt.loadNpmTasks('grunt-fast-watch');

Tip: the load-grunt-tasks module makes it easier to load multiple grunt tasks.

Examples

 
trim = (str)->
  str.replace /(^\s*)|(\s*$)/gm, ""
fromLines = (patterns)->
  return trim(patterns).split('\n').map (pattern)->
    trim(pattern)


ignoreDir = fromLines """ 
.git
.gitignore
tmp        
node_modules

"""
serverCares = fromLines """
*.coffee       
*.json
""" 

clientCares = fromLines """ 
*.coffee   
!Gruntfile.coffee
package.json 
"""  # every coffee file, but Gruntfile.coffe + package.json
 
module.exports = (grunt)->   
 
  grunt.initConfig 
    fastWatch:
      cwd:     
        dir : '.' 
        ignoreSubDir : ignoreDir 
        trigger:
          server:  
            care : serverCares
            tasks: ["print:Server"]
          client: 
            care : clientCares  
            tasks: ['print:Client']

  grunt.loadTasks 'tasks' 

  grunt.registerTask 'print', (arg)-> console.log 'PRINT ',arg
  grunt.registerTask 'default', 'fastWatch:cwd'

   

Watch all event under dir ( . = current workign directory ) exclude sub-direcoty matched by .ignoreSubDir

When file system event wached, it test trigger.*.care

If passed, run tasks.

Configuration

dir & ignoreSubDir designate dirs which are watched.

trigger contains tasks list which are called by care

See ignore for ignoreSubDir and care

one more thing, matching of care is reverse result of ignore

Put simply, ignore module filter out changed file path, then watcher cares. And vice versa.

It may be seem weird, but [ignore]]ig is just filepath filter.

Anyway, write pattern naturally then fast-watch understands.

License

(The MIT License)

Copyright (c) 2014 junsik <js@seth.h@google.com>

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.