manjaro-tools/lib/util-iso-overlayfs.sh

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#!/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.
track_image() {
info "%s mount: [%s]" "${iso_fs}" "$5"
mount "$@" && IMAGE_ACTIVE_MOUNTS=("$5" "${IMAGE_ACTIVE_MOUNTS[@]}")
}
# $1: new branch
mount_image(){
IMAGE_ACTIVE_MOUNTS=()
mkdir -p "${mnt_dir}/work"
track_image -t overlay overlay -olowerdir="${work_dir}/rootfs",upperdir="$1",workdir="${mnt_dir}/work" "$1"
}
mount_image_custom(){
IMAGE_ACTIVE_MOUNTS=()
mkdir -p "${mnt_dir}/work"
track_image -t overlay overlay -olowerdir="${work_dir}/desktopfs":"${work_dir}/rootfs",upperdir="$1",workdir="${mnt_dir}/work" "$1"
}
mount_image_live(){
IMAGE_ACTIVE_MOUNTS=()
mkdir -p "${mnt_dir}/work"
track_image -t overlay overlay -olowerdir="${work_dir}/livefs":"${work_dir}/rootfs",upperdir="$1",workdir="${mnt_dir}/work" "$1"
}
umount_image(){
if [[ -n ${IMAGE_ACTIVE_MOUNTS[@]} ]];then
info "%s umount: [%s]" "${iso_fs}" "${IMAGE_ACTIVE_MOUNTS[@]}"
umount "${IMAGE_ACTIVE_MOUNTS[@]}"
unset IMAGE_ACTIVE_MOUNTS
rm -rf "${mnt_dir}/work"
fi
}