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authorAaron Griffin <aaronmgriffin@gmail.com>2007-10-03 22:19:03 -0500
committerAaron Griffin <aaronmgriffin@gmail.com>2007-10-03 22:19:03 -0500
commit5c11e9bb7ca987f61587afd807fd371ba4986875 (patch)
treefaf473837d5ce8a53d45321a9843590832377577 /mkarchroot
parent0ccd823361492bdd2714a4b80b27212faaebbf1e (diff)
downloaddevtools32-5c11e9bb7ca987f61587afd807fd371ba4986875.tar.xz
Initial mkarchroot commit
A simple utility for build and running within archlinux specific chroot environments Signed-off-by: Aaron Griffin <aaronmgriffin@gmail.com>
Diffstat (limited to 'mkarchroot')
-rwxr-xr-xmkarchroot136
1 files changed, 136 insertions, 0 deletions
diff --git a/mkarchroot b/mkarchroot
new file mode 100755
index 0000000..db3ce37
--- /dev/null
+++ b/mkarchroot
@@ -0,0 +1,136 @@
+#!/bin/sh
+
+FORCE="n"
+BZIP2=""
+GZIP=""
+RUN=""
+
+working_dir=""
+
+APPNAME=$(basename "${0}")
+
+usage ()
+{
+ echo "usage ${APPNAME} [options] working-dir package [package [package..]]"
+ echo " options:"
+ echo " -r <app> run 'app' within the context of the chroot"
+ echo " -f force overwrite of files in the working-dir"
+ echo " -h this message."
+ exit 1
+}
+
+while getopts 'r:fh' arg; do
+ echo "getopts $arg"
+ case "${arg}" in
+ r) echo "run=>$OPTARG"; RUN="$OPTARG" ;;
+ f) FORCE="y" ;;
+ h|?) usage ;;
+ *) echo "invalid argument '${arg}'"; usage ;;
+ esac
+done
+shift $(($OPTIND - 1))
+
+[ $# -lt 1 ] && echo "missing arguments" && usage
+
+working_dir="$(readlink -f ${1})"
+shift 1
+
+[ "${working_dir}" = "" ] && echo "error: please specify a working directory" && usage
+
+# {{{ functions
+
+function 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' 1 2 15
+}
+
+function 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 [ "$RUN" != "" ]; then
+# run chroot {{{
+ if [ "$EUID" != "0" ]; then
+ echo "Running a chroot requires root privileges, aborting"
+ exit 1
+ fi
+
+ #Sanity check
+ if [ ! -f "${working_dir}/.arch-chroot" ]; then
+ echo "'${working_dir}' does not appear to be a Arch chroot"
+ echo " please build the image using mkarchchroot"
+ exit 1
+ fi
+
+ chroot_mount
+
+ echo "starting chroot (using \$SHELL)"
+ chroot "${working_dir}" "${SHELL}"
+
+# }}}
+else
+# {{{ build chroot
+ if [ -e "${working_dir}" -a "${FORCE}" = "n" ]; then
+ echo "Working dir '${working_dir}' already exists - try using -f"
+ exit 1
+ fi
+
+ mkdir -p "${working_dir}"
+
+ chroot_mount
+
+ pacargs="--noconfirm -v " #--noprogressbar -v
+ pacargs="$pacargs --root=${working_dir}"
+ pacargs="$pacargs --dbpath=${working_dir}/var/lib/pacman"
+ pacargs="$pacargs --cachedir=${working_dir}/var/cache/pacman"
+
+ 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} $@; then
+ echo "error: failed to instal all packages"
+ exit 1
+ fi
+ fi
+
+ if [ -d "${working_dir}/lib/modules" ]; then
+ echo "running ldconfig"
+ ldconfig -r "${working_dir}"
+ fi
+
+ if [ ! -e "${working_dir}/.arch-chroot" ]; then
+ date +%s > "${working_dir}/.arch-chroot"
+ fi
+# }}}
+fi
+
+# vim:ft=sh:ts=4:sw=4:et: