Kernel version checking and auto umount/rmmod. Few other things too.

cdfs-2.4.20.ebuild (text/plain), 3.08 KB, created by Bel Zébute on 2003-07-29 08:55:38 UTC

# Copyright 1999-2003 Gentoo Technologies, Inc.
# Distributed under the terms of the GNU General Public License v2
# $Header: $

# The most current version has a "-a" at the end, which screws up Portage if
# it's included in the file name, so we'll just fudge it here.
MY_P="${P}-a"
MY_KV="`echo $KV | sed 's/[^0-9.].*//'`"

DESCRIPTION="A file system for Linux systems that exports all tracks and boot images on a CD as normal files."
HOMEPAGE="http://www.elis.rug.ac.be/~ronsse/cdfs/"
SRC_URI="http://www.elis.rug.ac.be/~ronsse/cdfs/download/${MY_P}.tar.bz2"
LICENSE="GPL-2"
SLOT="${KV}"
KEYWORDS="~x86"

IUSE=""
DEPEND="virtual/kernel"
#RDEPEND=""

S=${WORKDIR}/${MY_P}

pkg_setup () {
	# Check to see if we are in sync with kernel version.
	if [ ${MY_KV} != ${PV} ]
	then
		eerror
		eerror "Portage detected kernel version ${MY_KV} on this system."
		eerror "This module is intended for a $PV kernel only!!!"
		eerror
		die
	fi
	# Check to see if cdfs.o is inserted into kernel, otherwise, build fails
	if [ "`lsmod | sed '/^cdfs/!d'`" ]
	then
		eerror
		eerror "Module is in use by the kernel!!!"
		eerror "Attempting to unload..."

		# Checking if mounted (seem to load automatic at mount)...
		M_P="`sed '/cdfs/!d;s/[^ ]*\ //;s/\ cdfs.*//' /etc/mtab`"
		if [ "$M_P" ]
		then	# Unmounting
			eerror
			eerror "	cdfs filesystem mounted at $M_P!!!"
			eerror "	Attempting to unmount..."
			umount ${M_P} 2>/dev/null || (
				eerror "	Failed!  Please unmount $M_P manually and emerge again."
				eerror
				exit 1
				) || die
			einfo "	Succesfuly unmounted $M_P..."
			eerror
		fi
		# Unloading module...
		rmmod cdfs 2>/dev/null || (
			eerror "Failed to unload modules from kernel!!!"
			eerror "Please manualy remove the module from the kernel and emerge again."
			eerror
			exit 1
			) || die
		einfo "Successfuly removed module from memory.  Resuming emerge."
		einfo
	fi
}

src_unpack() {
	# Something inside portage sets $O for some reason, this screws up
	# the build.  Fortunately it looks like Makefile.in really shouldn't
	# have been using it to begin with.
	unpack ${A}
	cd ${S}
	sed -i -e 's/$(O)//' Makefile.in
}

src_compile() {
	econf || die
	emake || die
}

src_install() {
	# The driver goes in the standarn modules location
	insinto /lib/modules/${KV}/kernel/fs/cdfs
#	make DESTDIR=${D} install || die
	doins cdfs.o
	dodoc CHANGES COPYING INSTALL
}

pkg_postinst() {
#	ebegin "Running depmod -a"
#	depmod -a && eend 0 || eend 1
	einfo "Module name is cdfs.o, located in /lib/modules/${KV}/fs/cdfs"
	einfo "To use it, simply do \"insmod cdfs\""
	einfo "Optionaly, you can add it into your kernel's /etc/modules.autoload.d file"
	einfo "so it get loaded automatically at each boot."
	einfo "Read the /usr/share/doc/cdfs/INSTALL for options."
	einfo "One's can put this into the fstab so all users can read audio files:"
	einfo
	einfo "	# <fs>				<mountpoint>	<type>	<opts>			<dump/pass>"
	einfo "	/dev/cdroms/cdrom0	/mnt/cda		cdfs	noauto,ro,users	0 0"
	einfo
	einfo "You will need to re-emerge the package each time you will rebuild your"
	einfo "kernel modules with \"make modules_install\" (just like alsa and nvidia)"
	einfo
}