# Copyright 1999-2015 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: sys-kernel/mkinitramfs-ll/mkinitramfs-ll-9999.ebuild,v 1.14 2015/01/10 08:41:42 -tclover Exp $

EAPI=5

inherit eutils linux-info git-2

DESCRIPTION="Lightweight, modular and powerfull initramfs genrating tool"
HOMEPAGE="https://github.com/tokiclover/mkinitramfs-ll"
EGIT_REPO_URI="git://github.com/tokiclover/${PN}.git"

LICENSE="BSD-2"
SLOT="0"
KEYWORDS=""

COMPRESSOR_USE=( bzip2 gzip lz4 lzo xz )
FS_USE=( btrfs e2fs f2fs jfs reiserfs xfs )
IUSE="aufs +bash dm-crypt device-mapper dmraid fbsplash lzma mdadm squashfs
zfs +zram zsh ${COMPRESSOR_USE[@]/xz/+xz} ${FS_USE[@]/e2fs/+e2fs}"

REQUIRED_USE="|| ( bash zsh )
	|| ( ${COMPRESSOR_USE[@]} )
	|| ( ${FS_USE[@]} )"

DEPEND="sys-apps/sed"
RDEPEND="app-arch/cpio
	sys-apps/findutils
	fbsplash? ( sys-apps/v86d media-gfx/splashutils[fbcondecor,png,truetype] )
	sys-apps/busybox[mdev]
	dm-crypt? ( sys-fs/cryptsetup )
	device-mapper? ( sys-fs/lvm2 )
	dmraid? ( sys-fs/dmraid )
	mdadm? ( sys-fs/mdadm )
	aufs? ( sys-fs/aufs-util )
	btrfs? ( sys-fs/btrfs-progs )
	e2fs? ( sys-fs/e2fsprogs )
	f2fs? ( sys-fs/f2fs-tools )
	jfs? ( sys-fs/jfsutils )
	reiserfs? ( sys-fs/reiserfsprogs )
	squashfs? ( sys-fs/squashfs-tools[lz4?,lzma?,lzo?,xz?] )
	xfs? ( sys-fs/xfsprogs )
	zfs? ( sys-fs/zfs )
	lzma? ( || ( app-arch/xz-utils app-arch/lzma ) )
	lzo? ( app-arch/lzop )
	xz? ( app-arch/xz-utils )
	media-fonts/terminus-font[psf]
	bash? ( app-shells/bash )
	zsh? ( app-shells/zsh[unicode] )"

for (( i=0; i<$((${#COMPRESSOR_USE[@]} - 2)); i++ )); do
	RDEPEND="${RDEPEND}
		app-arch/${COMPRESSOR_USE[$i]}"
done
unset i

pkg_setup()
{
	[[ -n "$PKG_SETUP_HAS_BEEN_RAN" ]] && return
	CONFIG_CHECK="BLK_DEV_INITRD PROC_FS SYSFS TMPFS"
	local u U

	for u in ${COMPRESSOR_USE[@]}; do
		U="${u^^[a-z]}"
		if use "${u}"; then
			CONFIG_CHECK+=" ~RD_${U}"
			eval : ERROR_"${U}"="no support of ${u} compressed initial ramdisk found"
		fi
	done
	for u in ${FS_USE[@]/e2fs}; do
		U="${u^^[a-z]}"
		if use "${u}"; then
			CONFIG_CHECK+=" ~${U}_FS"
			eval : ERROR_"${U}"="no supprt of ${u} file system found"
		fi
	done
	use e2fs && CONFIG_CHECK+=" ~EXT2_FS ~EXT3_FS ~EXT4_FS"

	linux-info_pkg_setup
	export PKG_SETUP_HAS_BEEN_RAN=1
}

src_prepare()
{
	sed -e '/COPYING.*$/d' -i Makefile
}

src_install()
{
	MAKEOPTS="-j1"
	emake DESTDIR="${ED}" VERSION=${PV} prefix=/usr install{,-doc}
	if use aufs && use squashfs; then
		emake DESTDIR="${ED}" prefix=/usr install-squashdir-svc
	fi
	use zram && emake DESTDIR="${ED}" install-{zram,tmpdir}-svc

	local sh
	for sh in {ba,z}sh; do
		use ${sh} &&
		emake DESTDIR="${ED}" prefix=/usr install-scripts-${sh}
	done
}

pkg_postinst()
{
	local linguas="${LINGUS:-en}"
	einfo
	einfo "The easiest way to build an intramfs is running:"
	einfo " \`${PN} -a -f: -y${LINGUAS// /:} -k$(uname -r)'"
	einfo "Do copy gpg binary along with its options.skel file"
	einfo "into /usr/share/${PN}/usr before for GnuPG support."
	einfo
	if use aufs && use squashfs; then
		einfo
		einfo "To squash \${PORTDIR}:var/lib/layman:var/db:var/cache/edb;"
		einfo "Edit /etc/conf.d/squashdir to add that list; And then,"
		einfo "Run \`sdr -r -d\${PORTDIR}:var/lib/layman:var/db:var/cache/edb';"
		einfo "And then add squashdir service to boot or default run level."
		einfo
	fi
	if use zram; then
		einfo "To use zram init service, edit the cnfiguration file;"
		einfo "And then add the service to boot run level."
	fi
}