add basic imaging

config

@@ -28,6 +28,8 @@ version="1.0.0-beta"
 mirror="http://packages.devuan.org/merged"
 section="main"
 
+image_name=${image_name:-$os_$release_$version_$arch.img}
+
 core_packages=(
 	devuan_keyring
 	debian_keyring

libdevuansdk

@@ -23,6 +23,7 @@ LIBPATH=${LIBPATH:-`dirname $0`}
 source $LIBPATH/config
 source $LIBPATH/zlibs/bootstrap
 source $LIBPATH/zlibs/helpers
+source $LIBPATH/zlibs/imaging
 source $LIBPATH/zlibs/sysconf
 
 vars+=(libdevuansdk_version)

zlibs/bootstrap

@@ -19,8 +19,8 @@
 
 vars+=(bootstrap_tgz)
 
-bootstrap() {
+bootstrap_complete_base() {
-	fn bootstrap "$@"
+	fn bootstrap_complete_base "$@"
 	req=(arch)
 	ckreq || return 1
 
@@ -55,6 +55,9 @@ bootstrap() {
 	conf_print_networkifaces  | sudo tee $strapdir/etc/network/interfaces
 	conf_print_resolvconf     | sudo tee $strapdir/etc/resolv.conf
 	conf_print_sourceslist    | sudo tee $strapdir/etc/apt/sources.list
+	## below typically used in arm-sdk
+	[[ -n $inittap ]] && { print $inittab | sudo tee -a $strapdir/etc/inittab }
+	for i in $custmodules; do print $i | sudo tee -a $strapdir/etc/modules; done
 
 	## write third-stage for chroot
 	bootstrap_config_thirdstage | sudo tee $strapdir/thirdstage

zlibs/helpers

@@ -39,6 +39,19 @@ devprocsys() {
 	fi
 }
 
+findloopmapp() {
+	fn findloopmapp
+	req=(workdir image_name)
+	ckreq || return 1
+
+	notice "finding a free loopdevice"
+
+	loopdevice=$(sudo losetup -f --show $workdir/${image_name}.img)
+	mappdevice=$(sudo kpartx -va $loopdevice | sed -E 's/.*(loop[0-9])p.*/\1/g' | sed 1q)
+	func "loopdevice: $loopdevice"
+	func "mappdevice: $mappdevice"
+}
+
 silly() {
 	fn silly "$@"
 	local arg1="$1"

zlibs/imaging

@@ -0,0 +1,92 @@
+#!/usr/bin/env zsh
+# Copyright (c) 2016 Dyne.org Foundation
+# libdevuansdk is maintained by Ivan J. <parazyd@dyne.org>
+#
+# This file is part of libdevuansdk
+#
+# This source code is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This software is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this source code. If not, see <http://www.gnu.org/licenses/>.
+
+## imagine images
+
+vars+=(image_name bootpart rootpart)
+
+image_prepare_raw() {
+	fn image_prepare_raw
+	req=(workdir size image_name)
+	ckreq || return 1
+
+	notice "creating raw image file from zeroes..."
+
+	dd if=/dev/zero \
+		of=$workdir/${image_name}.img \
+		bs=1M \
+		count=$size
+}
+
+image_partition_raw_dos() {
+	fn image_partition_raw_dos
+	req=(workdir image_name parted_boot parted_root)
+	ckreq || return 1
+
+	notice "partitioning raw dos image..."
+
+	parted $workdir/${image_name}.img --script -- mklabel msdos
+	parted $workdir/${image_name}.img --script -- mkpart primary ${parted_boot}
+	parted $workdir/${image_name}.img --script -- mkpart primary ${parted_root}
+
+	## get loopdevice and mapper device (see ./helpers)
+	findloopmapp
+
+	mappdevice="/dev/mapper/$mappdevice"
+	bootpart=${mappdevice}p1
+	rootpart=${mappdevice}p2
+
+	notice "formatting partitions..."
+	sudo mkfs.vfat $bootpart
+	sudo mkfs.ext4 $rootpart
+}
+
+image_partition_raw_gpt() {
+	fn image_partition_raw_gpt
+	req=(workdir image_name)
+	ckreq || return 1
+
+	notice "partitioning raw gpt image..."
+
+	parted $workdir/${image_name}.img --script -- mklabel gpt
+	cgpt create -z ${image_name}.img
+	cgpt create ${image_name}.img
+	cgpt add -i 1 -t kernel -b 8192 -s 32768 -l kernel -S 1 -T 5 -P 10 ${image_name}.img
+	cgpt add -i 2 -t data -b 40960 -s $(expr $(cgpt show ${image_name}.img \
+		| awk '/Sec GPT table/ {print \$1}') - 40960) -l Root ${image_name}.img
+
+	findloopmapp
+
+	mappdevice="/dev/mapper/${mappdevice}"
+	bootpart=${mappdevice}p1
+	rootpart=${mappdevice}p2
+
+	notice "formatting partitions..."
+	sudo mkfs.ext4 -L rootfs $rootpart
+}
+
+image_raw_mount() {
+	fn image_raw_mount
+	req=(workdir bootpart rootpart)
+	ckreq || return 1
+
+	mkdir -p $workdir/boot $workdir/root
+	sudo mount $bootpart $workdir/boot && act "mounted boot partition" || zerr
+	sudo mount $rootpart $workdir/root && act "mounted root partition" || zerr
+}