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Example code of frankdejonge/locked-console-command

Informations about the package locked-console-command

Symfony (or Laravel) Console Locked Commands

Author Build Status Quality Score Packagist Version Total Downloads Coverage Status

In some cases, you'll want only one process of a certain command to be able to run at a time. The Command decorator supplied in this package makes this possible by using the LockHandler class from Symfony's Filesystem Component.

Credits

The idea wasn't initially mine, I stole it from @Seldaek.

Installation

Usage

All you have to do, is wrap the command:

Laravel Usage

How does the locking work?

The decorator uses a file lock (supplied by Symfony's LockHandler) to ensure a lock is set before and released after executing the command.

If a lock is already set for a given task, an info message is shown and the decorated command is prevented from running.

Configuration

There are two configurable parts to influence locking.

  1. The lock name
  2. The lock path

Through __constructor argument injection

Through interface implementations in the wrapper Command

The SpecifiesLockName interface is especially handy with dynamic lock names, for example:

All versions of locked-console-command with dependencies

PHP Build Version
Package Version
Requires php Version >=5.5.9
symfony/console Version ~3.0
symfony/filesystem Version ~3.0
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