4 Why Guard?

Rémy Coutable редактировал(а) эту страницу 2015-07-18 16:17:06 +02:00

Содержание

• 1. Easier to run, manage and extend/maintain:
• 2. more efficient:
• 3. more robust and "correct":
• 4. more portable:

Here are problems Guard helps avoid (compared to other scripts or tools like inotify-wait):

1. Easier to run, manage and extend/maintain:

• just generate and edit a Guardfile (once) and run guard
• nice, readable DSL for setting complex rules
• in Ruby
• simple example templates are generated for you
• well documented, lots of simple examples
• fantastic community support (just file an issue and see...)
• built in support for logging and notification (Growl, etc.)

2. more efficient:

• allows efficiently talking with servers (connect once on startup, then make request every change)
• scans large directories only once on startup
• no "sleep" code needed - changes can happen either immediately, or they can be "accumulated" and "compressed" (to avoid running the command too frequently)

3. more robust and "correct":

• properly handled cases when files are changed while the command is running
• no inotifywait/inotifywatch errors to deal with
• watches the files directory, so it supports file adding, renames (which is what editors do - they rarely just "modify" a file in place)
• interactive console to rerun, simulate and debug events
• Guard itself reloads when you change its configuration
• single instance of Guard can handle many directories (instead of running many unmanageable "instances" of inotify_wait scripts running)
• more than 7 million gem downloads and almost no open issues
• handles moving whole files and directories

4. more portable:

• supports multiple platforms (Linux, OSX, BSD, Windows)
• supports multiple backends (inotify, kqueue, polling)
• polling for network drives and VM shared dirs (which don't support inotify)

Intro

• Why Guard?
• Guard Plugins
• Guard alternatives

Installation

• System Notifications
• Terminal Colors on Windows
• Add Readline support to Ruby on Mac OS X
• Which Growl library should I use
• Efficient Filesystem Handling

Getting Started

• List of Guard Commands
• Command Line Options for Guard
• List of available Guards
• Guardfile examples
• Run Guard within RubyMine
• Guardfile-DSL / Configuring-Guard
• Configuration Files
• Interacting with Guard
• Guard Signals

Troubleshooting

• Understanding Guard

Advanced use of Guard

• Shared configurations
• Hooks and callbacks
• Correctly using the --watchdir option

Cookbooks

• Use Guard programmatically cookbook
• Custom pry command cookbook

Development

• Create a Guard
• Programmatic use of Guard
• Upgrading to Guard 2.0
• Upgrade guide for existing guards to Guard v1.1
• Analysis of inotify events for different editors

This wiki and the Guard README document contains a lot of information, please take your time and read these instructions carefully.

If you run into any trouble, you may start by understanding how Guard works.

We provide detailed changes for each Guard release.

Be sure to read the CONTRIBUTING guidelines before reporting a new Guard issue or open a pull request.

If you have any questions about the Guard usage or want to share some information with the Guard community, please go to one of the following places:

• Google+ community
• Google group
• StackOverflow
• IRC channel #guard (irc.freenode.net) for chatting