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#!/bin/sh
# fake/schroot-proposed -- emulate proposed mount behaviour for schroot
#
# Copyright © 2017 Simon McVittie
# SPDX-License-Identifier: MIT
# (see debian/copyright)
set -e
# /etc/schroot/default/fstab
bind_dev=yes
while true; do
case "$1" in
(--sbuild)
shift
# /etc/schroot/sbuild/fstab
bind_dev=no
;;
(*)
break
esac
done
CHROOT_PATH="$1"
shift
if test -z "$CHROOT_PATH" || test -z "$1"; then
echo "Usage: $0 CHROOT COMMAND...">&2
exit 2
fi
[ "$bind_dev" = no ] || mount --bind /dev "$CHROOT_PATH/dev"
mount -t devpts -o rw,newinstance,ptmxmode=666,mode=620,gid=5 /dev/pts "$CHROOT_PATH/dev/pts"
ls -l "$CHROOT_PATH/dev/ptmx" | sed -e 's/^/# fake-schroot: /' >&2
ls -l "$CHROOT_PATH/dev/pts/ptmx" | sed -e 's/^/# fake-schroot: /' >&2
mounted_ptmx=no
if [ -e "$CHROOT_PATH/dev/pts/ptmx" ] && \
! [ -L "$CHROOT_PATH/dev/ptmx" ]; then
mount --bind "$CHROOT_PATH/dev/pts/ptmx" "$CHROOT_PATH/dev/ptmx"
mounted_ptmx=yes
fi
mounted_console=no
if stdin_tty="$(tty)"; then
if [ ! -e "$CHROOT_PATH/dev/console" ]; then
mknod -m700 "$CHROOT_PATH/dev/console" c 5 1
fi
mount --bind "$stdin_tty" "$CHROOT_PATH/dev/console"
mounted_console=yes
fi
ls -l "$CHROOT_PATH/dev/ptmx" | sed -e 's/^/# fake-schroot: /' >&2
ls -l "$CHROOT_PATH/dev/pts/ptmx" | sed -e 's/^/# fake-schroot: /' >&2
e=0
chroot "$CHROOT_PATH" "$@" || e=$?
[ "$mounted_console" = no ] || umount "$CHROOT_PATH/dev/console"
[ "$mounted_ptmx" = no ] || umount "$CHROOT_PATH/dev/ptmx"
umount "$CHROOT_PATH/dev/pts"
[ "$bind_dev" = no ] || umount "$CHROOT_PATH/dev"
exit "$e"
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