[arch-dev-public] [PATCH] Implement a hook-system that allows to add custom code to the initscripts at certain places

[Thomas Bächler]

A function add_hook can be called from functions.d to register a hook 
function. The existing hooks are based on suggestions from Michael 
Towers (larch) and on the implementation of initscripts-extras-fbsplash 
which currently uses the strings passed to stat_busy and stat_done for 
this. More hooks can be added if requested.

The implementation uses associative arrays and will thus only work with 
bash 4 or later.

The changes have been commited to initscripts.git, but have not yet been 
extensively tested, only basic functionality tests have been performed:
http://projects.archlinux.org/?p=initscripts.git;a=commitdiff;h=cfabb85924f35c636550609b332d088aaae9941f

This should make life easier for larch (not exactly sure what they need 
it for) and will make initscripts-extras-fbsplash much cleaner to 
implement. Don't hesitate to request more hooks here.

A description of the existing hooks is in rc.d/functions.

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