customize

#!/bin/bash

CUSTOMFILE="custom.mk"

function help_syntax ()
{
	echo "Syntax: $(basename $0) <command> [<options> ...]"
}

function help ()
{
	help_syntax
	echo "
	add <module>             Add <module> to $CUSTOMFILE
	delete <module>          Delete <module> from $CUSTOMFILE
	enable <module>          Enable <module> in $CUSTOMFILE
	disable <module>         Disable <module> in $CUSTOMFILE
	status                   Display status of modules matching <pattern>
	sync_validate            Add/remove validate.no files according to custom.mk
"
}

function add ()
{
	F="$1/Makefile.mk"
	if [ -z "$(grep $F $CUSTOMFILE)" ]; then
		if [ -f $F ]; then
			echo "include $F" >>$CUSTOMFILE
		else
			echo "module $1 is not a valid module (missing $F)"
		fi
	else
		echo "$1 is already listed in $CUSTOMFILE"
		sync_validate
	fi
}

function delete ()
{
	F="$1/Makefile.mk"
	if [ -z "$(grep $F $CUSTOMFILE)" ]; then
		if [ -f $F ]; then
			echo "module $1 is not listed in $CUSTOMFILE"
		else
			echo "module $1 is not a valid module (missing $F)"
		fi
	else
		T=".tmp$$"
		grep -v $F $CUSTOMFILE >$T && mv $T $CUSTOMFILE
	fi
}

function enable ()
{
	F="$1/Makefile.mk"
	if [ -z "$(grep $F $CUSTOMFILE)" ]; then
		if [ -f $F ]; then
			echo "module $1 is not listed in $CUSTOMFILE"
		else
			echo "module $1 is not a valid module (missing $F)"
		fi
	else
		T=".tmp$$"
		sed -e "1,\$s:^#include $F:include $F:" < $CUSTOMFILE >$T && mv $T $CUSTOMFILE
		sync_validate
	fi
}

function disable ()
{
	F="$1/Makefile.mk"
	if [ -z "$(grep $F $CUSTOMFILE)" ]; then
		if [ -f $F ]; then
			echo "module $1 is not listed in $CUSTOMFILE"
		else
			echo "module $1 is not a valid module (missing $F)"
		fi
	else
		T=".tmp$$"
		sed -e "1,\$s:^include $F:#include $F:" < $CUSTOMFILE >$T && mv $T $CUSTOMFILE
		sync_validate
	fi
}

function status ()
{
	ENABLED=$(grep '^include' <$CUSTOMFILE | sed -e 's/include //g;s:/Makefile.mk::g')
	DISABLED=$(grep '^#include' <$CUSTOMFILE | sed -e 's/#include //g;s:/Makefile.mk::g')
	echo Enabled: $ENABLED
	echo Disabled: $DISABLED
}

function sync_validate ()
{
	ENABLED=$(grep '^include' <$CUSTOMFILE | sed -e 's/include //g;s:/Makefile.mk::g')
	DISABLED=$(grep '^#include' <$CUSTOMFILE | sed -e 's/#include //g;s:/Makefile.mk::g')
	for F in $ENABLED; do
		if [ -f $F/validate.no ]; then
			echo -n "removing $F/validate.no..."
			rm $F/validate.no && echo "ok"
		fi
	done
	for F in $DISABLED; do
		if [ ! -f $F/validate.no ]; then
			echo -n "adding $F/validate.no..."
			echo "$*: $(date)" > $F/validate.no && echo "ok"
		fi
	done
}

if [ $# -eq 0 ]; then
	help_syntax
else
	case $1 in
	(help|add|delete|enable|disable|status|sync_validate)
		$*
		;;
	(*)
		echo "$(basename $0): $1 is not a valid command"
		;;
	esac
fi