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author | James Meyer <James.meyer@operamail.com> | 2008-10-02 03:23:45 (GMT) |
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committer | James Meyer <James.meyer@operamail.com> | 2008-10-02 03:23:45 (GMT) |
commit | 618d4ad515a93d1e48934be5846edd71270171ec (patch) | |
tree | a22a9294af81215d4a7b1053e5fdb4d746f39d41 /mkarchroot | |
download | linhes_dev-618d4ad515a93d1e48934be5846edd71270171ec.zip |
initital import
Diffstat (limited to 'mkarchroot')
-rwxr-xr-x | mkarchroot | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/mkarchroot b/mkarchroot new file mode 100755 index 0000000..58065b3 --- /dev/null +++ b/mkarchroot @@ -0,0 +1,184 @@ +#!/bin/bash +# This program 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; version 2 of the License. +# +# This program 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. + +FORCE="n" +RUN="" + +working_dir="" + +APPNAME=$(basename "${0}") + +# usage: usage <exitvalue> +usage () +{ + echo "usage ${APPNAME} [options] working-dir [package-list | app]" + echo " options:" + echo " -r <app> Run 'app' within the context of the chroot" + echo " -u Update the chroot via pacman" + echo " -f Force overwrite of files in the working-dir" + echo " -C <file> location of a pacman config file" + echo " -M <file> location of a makepkg config file" + echo " -h This message" + exit $1 +} + +while getopts 'r:ufhC:M:' arg; do + case "${arg}" in + r) RUN="$OPTARG" ;; + u) RUN="pacman -Syu" ;; + f) FORCE="y" ;; + C) pac_conf="$OPTARG" ;; + M) makepkg_conf="$OPTARG" ;; + h|?) usage 0 ;; + *) echo "invalid argument '${arg}'"; usage 1 ;; + esac +done + +if [ "$EUID" != "0" ]; then + echo "error: this script must be run as root." + exit 1 +fi + +shift $(($OPTIND - 1)) + +if [ "$RUN" = "" -a $# -lt 2 ]; then + echo "you must specify a directory and one or more packages" + usage 1 +elif [ $# -lt 1 ]; then + echo "you must specify a directory" + usage 1 +fi + +working_dir="$(readlink -f ${1})" +shift 1 + +[ "${working_dir}" = "" ] && echo "error: please specify a working directory" && usage 1 + +# {{{ functions + +chroot_mount () +{ + echo "mounting sysfs : /sys" + [ -e "${working_dir}/sys" ] || mkdir "${working_dir}/sys" + mount -t sysfs sysfs "${working_dir}/sys" + + echo "mounting procfs : /proc" + [ -e "${working_dir}/proc" ] || mkdir "${working_dir}/proc" + mount -t proc proc "${working_dir}/proc" + + echo "binding device nodes : /dev" + [ -e "${working_dir}/dev" ] || mkdir "${working_dir}/dev" + mount -o bind /dev "${working_dir}/dev" + + echo "binding pacman cache : /var/cache/pacman" + [ -e "${working_dir}/var/cache/pacman" ] || mkdir -p "${working_dir}/var/cache/pacman" + mount -o bind /var/cache/pacman "${working_dir}/var/cache/pacman" + + trap 'chroot_umount' 0 1 2 15 +} + +copy_hostconf () +{ + echo "copying mtab : /etc/mtab" + cp /etc/mtab "${working_dir}/etc/mtab" + + echo "copying resolv.conf : /etc/resolv.conf" + cp /etc/resolv.conf "${working_dir}/etc/resolv.conf" + +} + +chroot_umount () +{ + echo "cleaning up mounts" + umount "${working_dir}/proc" + umount "${working_dir}/sys" + umount "${working_dir}/dev" + umount "${working_dir}/var/cache/pacman" +} +# }}} + +if [ "$RUN" != "" ]; then + # run chroot {{{ + #Sanity check + if [ ! -f "${working_dir}/.arch-chroot" ]; then + echo "error: '${working_dir}' does not appear to be a Arch chroot" + echo " please build the image using mkarchroot" + exit 1 + fi + + chroot_mount + copy_hostconf + + echo "starting chroot ($RUN)" + chroot "${working_dir}" ${RUN} + + # }}} +else + # {{{ build chroot + if [ -e "${working_dir}" -a "${FORCE}" = "n" ]; then + echo "error: working dir '${working_dir}' already exists - try using -f" + exit 1 + fi + + mkdir -p "${working_dir}/var/lib/pacman/" + mkdir -p "${working_dir}/etc/" + + chroot_mount + + pacargs="--noconfirm -v " #--noprogressbar -v + pacargs="$pacargs --root=${working_dir}" + # pacman takes these as relative to the given root + pacargs="$pacargs --cachedir=/var/cache/pacman/pkg" + if [ "$pac_conf" != "" ]; then + pacargs="$pacargs --config=${pac_conf}" + fi + + if [ $# -eq 0 ]; then + echo "no packages to install" + else + echo "installing packages:" + for i in $@; do echo -e "\t$i"; done + + op="-Sy" + if [ "$FORCE" = "y" ]; then + op="${op}f" + fi + if ! pacman ${op} ${pacargs} $@; then + echo "error: failed to install all packages" + exit 1 + fi + fi + + if [ -d "${working_dir}/lib/modules" ]; then + echo "running ldconfig" + ldconfig -r "${working_dir}" + fi + + if [ "$pac_conf" != "" ]; then + echo "installing custom pacman.conf" + cp ${pac_conf} ${working_dir}/etc/pacman.conf + fi + + if [ "$makepkg_conf" != "" ]; then + echo "installing custom makepkg.conf" + cp ${makepkg_conf} ${working_dir}/etc/makepkg.conf + fi + + echo "generating default locales" + cp /etc/locale.gen "${working_dir}/etc/locale.gen" + chroot "${working_dir}" locale-gen + + if [ ! -e "${working_dir}/.arch-chroot" ]; then + date +%s > "${working_dir}/.arch-chroot" + fi + # }}} +fi + +# vim:ft=sh:ts=4:sw=4:et: |