Callback

Each patternfile has the form <digits>-<callback>--<category>.

The callback identifier gets the string '-callback' appended to form the name of the callback executable. This executable must be located in ${MULLE_MONITOR_DIR}/bin.

The executable will be called with the following arguments and environment

Number	Argument	Description
$1	filepath	The file that has changed
$2	action	One of three possible strings: "create" "modify" "update"
$3	category	The optional category of the matching file

Some environment variables will be available:

Variable	Description
PWD	This variable and the working directory will be the project folder
MULLE_MONITOR_DIR	Location of the .mulle-monitor folder
MULLE_MONITOR_ETC_DIR	Location of the etc folder
MULLE_MONITOR_MATCH_DIR	Location of the match.d folder
MULLE_MONITOR_IGNORE_DIR	Location of the ignore.d folder
MULLE_MONITOR_LIBEXEC_DIR	libexec directory of mulle-monitor
MULLE_BASHFUNCTIONS_LIBEXEC_DIR	libexec directory of mulle-bashfunctions

A very simple callback would be:

#! /bin/sh

# could update a Makefile here maybe

# return task
echo "hello"

You can manage callbacks using the mulle-monitor callback command.