87 lines
1.8 KiB
Bash
Executable File
87 lines
1.8 KiB
Bash
Executable File
#!/bin/bash
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#
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# Runs a command within a Poky chroot
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#
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XEPHYR=`which Xephyr`
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if [ ! -n "$XEPHYR" -o ! -x "$XEPHYR" ]; then
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echo "You need to install Xephyr to use $0"
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exit 1
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fi
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CHROOTUID=`which chrootuid`
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if [ ! -n "$CHROOTUID" -o ! -x "$CHROOTUID" ]; then
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echo "You need to install Xephyr to use $0"
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exit 1
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fi
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case $# in
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0)
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echo "Invalid arguments."
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echo "$ $0 <target> [command]"
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exit 1
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;;
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1)
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ROOTFS=$1
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shift
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# Set $1 to be the boot script
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set -- /usr/bin/poky-chroot-launch
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;;
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*)
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ROOTFS=$1
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shift
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# Now $1 onwards are the command and arguments to run
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;;
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esac
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test -f "$ROOTFS/.pokychroot" || { echo "$ROOTFS is not setup for use as a Poky chroot." ; exit 1 ;}
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set -e
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# chrootuid doesn't handle relative paths, so ensure that the rootfs path is
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# absolute
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if test ${ROOTFS:0:1} != /; then
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ROOTFS="$(pwd)/$ROOTFS"
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fi
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safe_mount() {
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if ! mountpoint -q "$ROOTFS/$1"; then
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sudo mount --bind $1 "$ROOTFS/$1"
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fi
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}
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safe_umount() {
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if mountpoint -q "$ROOTFS/$1"; then
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sudo umount "$ROOTFS/$1"
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fi
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}
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# Mount the directories we need
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for m in /dev /dev/pts /dev/shm /proc /sys /tmp; do
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safe_mount $m
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done
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# Set up the environment
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export PATH=/bin:/usr/bin:/sbin:/usr/sbin
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export HOME=/home/$USER
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if [ ! -f "$ROOTFS/.pokychroot.init" ]; then
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sudo $CHROOTUID -i "$ROOTFS" $USER /bin/sh -c "/usr/bin/poky-chroot-init"
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touch "$ROOTFS/.pokychroot.init"
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fi
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$XEPHYR :1 -ac -screen 640x480x16 &
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# Go go go!
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sudo $CHROOTUID -i "$ROOTFS" $USER "$@" || /bin/true
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# Trap term signals so we don't kill ourselves
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trap true TERM
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# send term signal to the process group
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kill -- -$$
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# Unmount TODO: only umount if there are no other sessions active, somehow.
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for m in /tmp /sys /proc /dev/shm /dev/pts /dev; do
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safe_umount $m
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done
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