glacier-old/src/glacier-mkimg/glacier-mkimg

#!/bin/sh
# glacier-mkimg - Generate a root filesystem image
#
# This file is part of Glacier.
#
# Glacier 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.
#
# Glacier 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 Glacier. If not, see <https://www.gnu.org/licenses/>.

am_i_root() {
	printf ">> Checking if user is root...\n"
	if [[ $(/usr/bin/id -u) -ne 0 ]]; then
		printf ">> glacier-mkimg must be run as root.\n"
		exit 1
	fi
}

info() {
	printf ">> Building root filesystem image with the following settings:\n"
	printf "Image build location: /opt/everest\n"
	printf "Packages to be installed:\n"
	printf "	- system-toolchain-bin\n"
	printf "	- busybox-base-bin\n"
	printf "	- glacier-base-bin\n"
	printf "	- make-base-bin\n"
}

init-env() {
	mkdir -v /opt/everest
	mkdir -v /opt/everest/{sources,toolchain,targetfs}
	cd /opt/everest
}

get_skel() {
	printf ">> Creating directory layout in /opt/everest...\n"
	ROOT=/opt/everest/targetfs

	mkdir -v $ROOT/{boot,dev,etc,home,mnt,opt,proc,root,srv,sys,tmp,var}
	mkdir -v $ROOT/usr
	mkdir -v $ROOT/usr/{bin,sbin,include,lib,lib64,libexec,local,sbin,share,src}
	mkdir -v $ROOT/var/{cache,lib,local,lock,log,opt,run,spool,tmp,www}
	mkdir -v $ROOT/var/cache/glacier
	mkdir -v $ROOT/var/log/glacier
	mkdir -v $ROOT/etc/glacier
	mkdir -v $ROOT/etc/glacier/pkginfo
	ln -sv $ROOT/usr/bin $ROOT/bin
	ln -sv $ROOT/usr/lib $ROOT/lib
	lv -sv $ROOT/usr/sbin $ROOT/sbin
	ln -sv $ROOT/usr/lib64 $ROOT/lib64
	printf ">> Finished.\n"
	exit 0
}

prepare_for_pkg() {
	printf ">> Preparing for package installation...\n"
	glacier -c system-toolchain-bin
	glacier -c busybox-base-bin
	glacier -c glacier-base-bin
	glacier -c make-base-bin
	printf ">> Done.\n"
	exit 0
}

install_pkg() {
	printf ">> Installing packages...\n"
	glacier -ci system-toolchain-bin
		if [ "$?" != "0" ]; then
			exit 1
		fi 
	glacier -ci busybox-base-bin
		if [ "$?" != "0" ]; then
			exit 1
		fi
	glacier -ci glacier-base-bin
		if [ "$?" != "0" ]; then
			exit 1
		fi
	glacier -ci make-base-bin
		if [ "$?" != "0" ]; then
			exit 1
		fi
}

warn_about_cache() {
	printf ">> WARNING: The cache was used for installing packages to the target.\n"
	printf ">> It is recommended to run the following command to clean the cache:\n"
	printf ">> glacier -cc\n"
	exit 0
}

change_ownership() {
	printf ">> Ensuring file ownership is correct...\n"
	chown -Rv root:root /opt/everest/targetfs
	chgrp -v 13 /opt/everest/targetfs/var/log/lastlog
	printf ">> Done.\n"
}

create_img() {
	printf ">> Creating filesystem image...\n"
	install -dv /opt/everest/build
	cd /opt/everest/targetfs
	tar -cvf /opt/everest/build/everestlinux-RELEASE-img.tar *
	zstd /opt/everest/build/everestlinux-RELEASE-img.tar
	rm /opt/everest/build/everestlinux-${EVEREST_RELEASE}-img.tar
	printf ">> Done.\n"
}

finish() {
	printf ">> Build has finished.\n"
	printf ">> Filesystem image is located in the following directory:\n"
	printf ">> /opt/everest/build\n"
}

showhelp_big() {
	printf "glacier-mkimg - easily compile an Everest Linux image\n"
	printf "usage - glacier-mkimg [-h] [init] [-t] [-s] [-p] [-o] [-i]\n"
	printf "\n"
	printf "glacier-mkimg {init}	initialize the environment\n"
	printf "glacier-mkimg {-s}	only download filesystem skeleton\n"
	printf "glacier-mkimg {-p}	only install packages to /opt/everest\n"
	printf "glacier-mkimg {-o}	only change ownership of /opt/everest\n"
	printf "glacier-mkimg {-i}	only create image\n"
	printf "\n"
	printf "If no option is passed, glacier-mkimg will perform all tasks\n"
	printf "glacier-mkimg init must be run before anything else is done\n"
	printf "\n"
	printf "This program is free software.\n"
	printf "See the GNU GPL version 3 for details.\n"
	exit 0
}

case $1 in
	-h|--help)
		showhelp_big
	;;
	init)
		am_i_root "$@"
		init_env "$@"
		exit 0
	;;
	-s)
		get_skel "$@"
		exit 0
	;;
	-p)
		prepare_for_pkg "$@"
		install_pkg "$@"
		warn_about_cache "$@"
		exit 0
	;;
	-o)
		change_ownership "$@"
		exit 0
	;;
	-i)
		create_img "$@"
		exit 0
	;;
	-*)
		printf "usage: glacier-mkimg [-h] [init] [-s] [-p] [-o] [-i]\n"
		exit 1
	;;
	*)
		get_skel "$@"
		prepare_for_pkg "$@"
		install_pkg "$@"
		warn_about_cache "$@"
		change_ownership "$@"
		create_img "$@"
		finish
		exit 0
	;;
esac

printf "usage: glacier-mkimg [-h] [init] [-s] [-p] [-o] [-i]\n"
exit 1