Manual Pages  — HOOK.LUA

hook.lua – FreeBSD hook module

DESCRIPTION Exported functions Hook Naming Guidelines EXAMPLES AUTHORS

hook.lua contains functionality for defining hook types and attaching hooks. Hooks are functions used to attach custom behaviors at pre-defined points in loader execution. These pre-defined points are what we refer to as "hook types".

Before using the functionality provided by hook.lua, it must be included with a statement such as the following:

    local hook = require("hook")

The following functions are exported from hook.lua:

hook.registerType(hooktype)
	Adds hooktype as a recognized hook type. This allows functions to be added to run when hooks of this type are invoked using hook.runAll(hooktype).
hook.register(hooktype, hookfunc)
	Register hookfunc to be run when hooks of type hooktype are invoked.
hook.runAll(hooktype)
	Invoke all hooks registered for type hooktype. Hooks are invoked in the order in which they are registered.

To register a hook to be run when configuration is reloaded:

local hook = require("hook")

local function configuration_was_reloaded()
        print("Configuration was reloaded!")
end

hook.register("config.reloaded", configuration_was_reloaded)

The hook.lua file was originally written by Kyle Evans <Mt kevans@FreeBSD.org>.