Merge branch 'issue/601' into 'develop'

SCRUM#602: Several improvements

See merge request !19

.gitignore

 chroot
 overlay
-kernel
 *.swp
-iso/**/*.iso
-src/preseed/.preseed.bkp
-initrd
+cache/*
+iso/*
+initrd/*
 initrd.lz
-chroot*.tar.gz
-packages-needed
-base
-todos.txt
-vmlinuz-*-generic
-initrd.img-*-generic
+.Trash-1000/*
+.vscode/*
\ No newline at end of file

.linter_shell.sh

@@ -18,5 +18,6 @@ echo  -e "$files"| xargs shellcheck -s bash && \
 echo "AWESOME! No problems found." ; \
 exit 0
 #else
-echo -e "Understand errors in: ${BLUE}https://github.com/koalaman/shellcheck/wiki${NC}"
+echo -e "Understand errors in: \
+${BLUE}https://github.com/koalaman/shellcheck/wiki${NC}"
 exit 1

.vscode/settings.json

+{
+        // sulzbach:
+        "editor.rulers": [80],
+        "editor.fontSize": 16
+}
\ No newline at end of file

conf/chroot.conf

+export NO_DBUS=true

conf/debug.conf

+PASSWD="123mudar"
\ No newline at end of file

conf/general.conf

+TMPFS="${PREFIX}/tmp"
+TMPFS_SIZE="6291456k"
+TMP="${TMPFS}/${_PROF}"
+CHROOTDIR="${PREFIX}/overlay"
+SCRIPTSDIR="${PREFIX}/scripts-enabled/${_PROF}"
+ISODIR="${PREFIX}/iso"
+CACHEDIR="${PREFIX}/cache/${_PROF}/${_REPO}"
+PKGLIST="${PREFIX}/pkg-list/${_PROF}"
+SOURCESLIST="${PREFIX}/sources-list"
+LOG_PATH="/var/log/create-iso"

conf/lc6.conf

+NAME="Linux Comunicacoes"
+WEBSITE="https://cidadesdigitais.c3sl.ufpr.br/linux-comunicacoes/"
+ISOURL="http://cdimage.ubuntu.com/ubuntu-gnome/releases/16.04/release"
+KEYURL="http://repo.c3sl.ufpr.br/lc2/lc.c3sl.ufpr.br.key"

conf/le6-netbook.conf

+NAME="Linux Educacional Netbook"
+WEBSITE="https://linuxeducacional.c3sl.ufpr.br"
+ISOURL="http://cdimage.ubuntu.com/ubuntu-gnome/releases/16.04/release"
+KEYURL="http://repo.c3sl.ufpr.br/le6/le.c3sl.ufpr.br.key"

conf/le6.conf

+NAME="Linux Educacional"
+WEBSITE="https://linuxeducacional.c3sl.ufpr.br"
+ISOURL="http://cdimage.ubuntu.com/ubuntu-gnome/releases/16.04/release"
+KEYURL="http://repo.c3sl.ufpr.br/le6/le.c3sl.ufpr.br.key"

conf/le6/testing/create-iso.conf

-SHORTNAME=le6
-TMP=${PREFIX}/${_DIST}
-CHROOTDIR=${PREFIX}/overlay
-TMPFS=${PREFIX}/tmp
-DISTRO=Linux_Educacional_6.1.0
-DPLIST=${PREFIX}/pkg-list/${_DIST}/dependencies.list
-INSTLIST=${PREFIX}/pkg-list/${_DIST}/install.list
-ISOLINUX=${PREFIX}/src/isolinux
-MOUNTLIST=${TMP}/mountlist
-OURSOURCESLIST=${PREFIX}/sources-list/${_DIST}/${SHORTNAME}.list
-RMDSKT=${PREFIX}/pkg-list/${_DIST}/remove-desktop.list
-RMLIST=${PREFIX}/pkg-list/${_DIST}/remove.list
-REPOPKGS=${PREFIX}/pkg-list/${_DIST}/repo-local.list
-SCRIPTSDIR=${PREFIX}/scripts-enabled/${_DIST}
-SOURCESLISTDEFAULT=${PREFIX}/sources-list/${_DIST}/default.list
-SCRIPT_NAME="exec.sh"
-LOG_PATH="/var/log"

conf/opts.conf

+_HELP=false
+_PROF=""
+_INPUT=""
+_OUTPUT=""
+_REPO="stable"
+_VERSION=""
+_DEBUG=false
+_MAIL=false

conf/pre.conf

-_HELP=false
-_DIST=""
-_ARCH="amd64"
-_REPO="stable"

cron/le6/job.sh

+#!/bin/bash
+# shellcheck disable=SC1090
+#
+# Copyright (C) 2017 Centro de Computacao Cientifica e Software Livre
+# Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+#
+# This file is part of create-iso
+#
+# create-iso 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; either version 3
+# of the License, or (at your option) any later version.
+#
+# 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.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+# USA.
+
+if [ "$(id -u)" != "0" ]; then
+    echo "You must have more power to run this script. Are you root?"
+    exit -1
+fi
+
+PREFIX="$(realpath "$(dirname "$0")")"
+EXE="$1"
+VERSION="$2"
+ISOPATH="$3"
+TODAY="$(date +'%Y-%m-%d')"
+CMD="\"${EXE}\" --profile le6 --version \"${VERSION}\" --repo testing --output \"${PREFIX}/linux-educacional-${VERSION}-testing-${TODAY}.iso\" --debug --sendmail"
+CFGFILE="${PREFIX}/vars.cfg"
+
+source "${CFGFILE}"
+
+if [ "${SWITCH}" == 0 ]; then
+    # Turn up switch
+    sed --in-place "s/SWITCH=0/SWITCH=1/" "${CFGFILE}"
+    # Do nothing
+    exit 0
+else
+    # Turn down switch
+    sed --in-place "s/SWITCH=1/SWITCH=0/" "${CFGFILE}"
+    # Proceed with job
+fi
+
+# Create GNU screen session
+screen -dmS "${TODAY}" || exit 1
+
+# Execute c3geniso in the main window
+screen -S "${TODAY}" -X stuff "${CMD} && scp -i /home/lucas/.ssh/id_rsa_deployiso \"${PREFIX}\"/*.iso repository@repo.c3sl.ufpr.br:'/home/repository/www/le6/iso' && mv \"${PREFIX}\"/*.iso \"${ISOPATH}\" && exit\n" || exit 2
+
+exit 0

cron/le6/vars.cfg

+SWITCH=0

entra_chroot.sh

-#!/bin/bash
-# shellcheck disable=SC1090
-
-mount --bind /dev chroot/dev
-mount --bind /dev/pts chroot/dev/pts
-mount --bind /sys chroot/sys
-mount --bind /proc chroot/proc
-#chroot chroot dbus-uuidgen > chroot/var/lib/dbus/machine-id
-chroot chroot

helper/logging.incsh

-readonly ERROR=1
-readonly WARNING=2
-readonly INFO=4
-readonly DEBUG=8
-readonly ALL=15
-
-VERBOSE_FLAGS=${ALL}
-
-mapType() {
-	case "${1}" in
-		e | error    ) echo "${ERROR}" ;;
-		w | warning  ) echo "${WARNING}" ;;
-		i | info     ) echo "${INFO}" ;;
-		d | debug    ) echo "${DEBUG}" ;;
-                *            ) createIsoLogger -m "Invalid type '${1}'" -T "LOGGER"; return 1 ;;
-	esac
-}
-
-createIsoLogger() {
-
-	TYPE="${ERROR}"
-	MSG=""
-	SCRIPT="$(basename "${BASH_SOURCE[1]}")"
-	LINE="${BASH_LINENO[0]}"
-
-	while true; do
-    	case "${1}" in
-                -t | --type    ) TYPE="$(mapType "${2}")" || return; shift; shift ;;
-                -T | --tag     ) TAG="${2}"; shift; shift ;;
-                -m | --message ) MSG="${2}"; shift; shift ;;
-                -s | --script  ) SCRIPT="${2}"; shift; shift ;;
-        	-l | --line    ) LINE="${2}"; shift; shift ;;
-                -*             ) createIsoLogger -m "Unrecognized option '${1}'" -T "LOGGER"; return ;;
- 	        *              ) break ;;
-    	esac
-	done
-
-	if [ "$((${VERBOSE_FLAGS} & ${TYPE}))" -eq "${TYPE}" ]; then
-                if [ -z "${TAG}" ]; then
-                        LOG_LINE="[${SCRIPT}]: line ${LINE}: ${MSG}"
-                else
-                        LOG_LINE="[${SCRIPT}]: line ${LINE}: [${TAG}]: ${MSG}"
-                fi
-		case "${TYPE}" in
-			"${ERROR}"    ) LOG_LINE="\033[38;5;9m[ERROR]: ${LOG_LINE}\033[0m" ;;
-			"${WARNING}"  ) LOG_LINE="\033[38;5;11m[WARNING]: ${LOG_LINE}\033[0m" ;;
-			"${INFO}"     ) LOG_LINE="\033[38;5;10m[INFO]: ${LOG_LINE}\033[0m" ;;
-			"${DEBUG}"    ) LOG_LINE="\033[38;5;6m[DEBUG]: ${LOG_LINE}\033[0m" ;;
-			*             ) createIsoLogger -m "Invalid type '${TYPE}'" -T "LOGGER"; return ;;
-		esac
-		echo -e "${LOG_LINE}" 1>&2
-		echo -e "${LOG_LINE}" >> "${LOG_FILE}"
-	else
-		createIsoLogger -m "Tried to use disabled type '${TYPE}'" -T "LOGGER"
-		return
-	fi
-
-	if [ "${TYPE}" -eq "${ERROR}" ]; then
-		/bin/bash
-	fi
-}
-
-true

include/base.sh

+#!/bin/bash
+# shellcheck disable=SC1090
+#
+# Copyright (C) 2017 Centro de Computacao Cientifica e Software Livre
+# Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+#
+# This file is part of create-iso
+#
+# create-iso 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; either version 3
+# of the License, or (at your option) any later version.
+#
+# 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.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+# USA.
+
+get_iso() {
+    local isodir="$1"
+    local isosrc="$2"
+
+    local isoname
+    local md5
+    local oldmd5
+    local newmd5
+
+    md5="$(wget "${isosrc}/MD5SUMS" -O- | \
+    grep "amd64" | \
+    sort --version-sort | \
+    tail --lines=1)"
+    isoname="$(cut --delimiter='*' --fields=2 <<< "${md5}")"
+    newmd5="$(cut --delimiter=' ' --fields=1 <<< "${md5}")"
+    oldmd5="$(cat "${isodir}/input/MD5SUMS")"
+
+    if [[ "${oldmd5}" != "${newmd5}" ]]; then
+        mkdir --parents "${isodir}/input"
+        pushd "${isodir}/input" >/dev/null || \
+        create_iso_logger --message "Unable to change directory" --tag "pushd"
+        create_iso_logger --message "Downloading ${isoname}" --type info
+        wget "${isosrc}/${isoname}" || \
+        create_iso_logger --message "Unable to download image" --tag "wget"
+        create_iso_logger --message "Generating md5sum" --type info
+        md5="$(md5sum "${isodir}/input/${isoname}" | \
+        cut --delimiter=' ' --fields=1)"
+        [[ "${md5}" != "${newmd5}" ]] && \
+        create_iso_logger --message "Iso image is corrupted"
+        popd >/dev/null || \
+        create_iso_logger --message "Unable to change directory" --tag "popd"
+        echo "${newmd5}" > "${isodir}/input/MD5SUMS"
+    fi
+
+    echo "${isodir}/input/${isoname}"
+}
\ No newline at end of file

common.sh → include/chroot.sh

 #!/bin/bash
 # shellcheck disable=SC1090
-
-initChroot() {
-    local chrootdir="${1}"
+#
+# Copyright (C) 2017 Centro de Computacao Cientifica e Software Livre
+# Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+#
+# This file is part of create-iso
+#
+# create-iso 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; either version 3
+# of the License, or (at your option) any later version.
+#
+# 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.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+# USA.
+
+init_chroot() {
+    local chrootdir="$1"
 
     # Create the log file; this file will be bind to appear in "${VARLOG}"
     # directory in the target machine that generates the iso.
+    mkdir --parents "${chrootdir}/$(dirname "${LOG_FILE}")"
     touch "${chrootdir}/${LOG_FILE}"
     touch "${LOG_FILE}"
 
@@ -30,72 +51,59 @@ initChroot() {
     chroot "${chrootdir}" ln --symbolic /bin/true /fakebin/start-stop-daemon
 }
 
-closeChroot() {
-    local chrootdir="${1}"
+close_chroot() {
+    local chrootdir="$1"
 
     umount --lazy "${chrootdir}/etc/resolv.conf"
     umount --lazy "${chrootdir}/${LOG_FILE}"
     umount --lazy "${chrootdir}"/{dev/pts,proc,sys,dev}
 }
 
-function create_stub() {
-    local script="${1}"
+create_stub() {
+    local script="$1"
 
     cat << EOF > "${script}"
 #!/usr/bin/env bash
 
-# THIS SCRIPT WAS GENERATE DINAMICALLY BY CREATE-ISO
+# THIS SCRIPT WAS GENERATED DINAMICALLY BY CREATE-ISO
 # DO NOT EDIT IT.
 
 
 EOF
-    cat "${PREFIX}/helper/logging.incsh" >> "${script}"
+    cat "${PREFIX}/include/logging.sh" >> "${script}"
+    cat "${PREFIX}/conf/chroot.conf" >> "${script}"
 }
 
-addToChrootFile() {
-    local chrootdir="${1}"
-    local script_name="${2}"
-    local cmd="${3}"
+add_to_chroot_file() {
+    local chrootdir="$1"
+    local cmd="$2"
 
-    if [ ! -f "${chrootdir}/tmp/${script_name}" ]; then
-        create_stub "${chrootdir}/tmp/${script_name}"
+    if [ ! -f "${chrootdir}/tmp/exec.sh" ]; then
+        create_stub "${chrootdir}/tmp/exec.sh"
     fi
 
-    echo "${cmd}" >> "${chrootdir}/tmp/${script_name}"
+    echo "${cmd}" >> "${chrootdir}/tmp/exec.sh"
 }
 
-execChroot() {
-    local chrootdir="${1}"
-    local script_name="${2}"
+exec_chroot() {
+    local chrootdir="$1"
 
-    [ ! -x "${chrootdir}/tmp/${script_name}" ] && chmod +x "${chrootdir}/tmp/${script_name}"
-    chroot "${chrootdir}" "/tmp/${script_name}"
-    rm --recursive --force "${chrootdir}/tmp/${script_name:?}" &>/dev/null
+    [[ ! -x "${chrootdir}/tmp/exec.sh" ]] && chmod +x "${chrootdir}/tmp/exec.sh"
+    chroot "${chrootdir}" "/tmp/exec.sh"
+    rm --recursive --force "${chrootdir:?}/tmp/exec.sh" &>/dev/null
 
     return $?
 }
 
-function cleanup() {
-    local chrootdir="${1}"
-    local tmp="${2}"
+cleanup() {
+    local chrootdir="$1"
 
-    if mountpoint --quiet "${chrootdir}/etc/resolv.conf"; then
-        umount --lazy "${chrootdir}/etc/resolv.conf"
-    fi
-    if mountpoint --quiet "${chrootdir}/${LOG_FILE}"; then
-        umount --lazy "${chrootdir}/${LOG_FILE}"
-    fi
-    if mountpoint --quiet "${chrootdir}/dev/pts"; then
-       umount --lazy "${chrootdir}/dev/pts"
-    fi
-    if mountpoint --quiet "${chrootdir}/dev"; then
-       umount --lazy "${chrootdir}/dev"
-    fi
-    if mountpoint --quiet "${chrootdir}/sys"; then
-       umount --lazy "${chrootdir}/sys"
-    fi
-    if mountpoint --quiet "${chrootdir}/proc"; then
-       umount --lazy "${chrootdir}/proc"
-    fi
-    rm --recursive --force "${tmp:?}"
+    type cond_umount >/dev/null 2>&1 || source "${PREFIX}/include/mount.sh"
+
+    cond_umount "${chrootdir}/etc/resolv.conf"
+    cond_umount "${chrootdir}/${LOG_FILE}"
+    cond_umount "${chrootdir}/dev/pts"
+    cond_umount "${chrootdir}/dev"
+    cond_umount "${chrootdir}/sys"
+    cond_umount "${chrootdir}/proc"
 }

include/logging.sh

+#!/bin/bash
+# shellcheck disable=SC1090
+#
+# Copyright (C) 2017 Centro de Computacao Cientifica e Software Livre
+# Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+#
+# This file is part of create-iso
+#
+# create-iso 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; either version 3
+# of the License, or (at your option) any later version.
+#
+# 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.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+# USA.
+
+readonly ERROR=1
+readonly WARNING=2
+readonly INFO=4
+readonly DEBUG=8
+readonly ALL=15
+
+VERBOSE_FLAGS=${ALL}
+
+map_type() {
+	case "$1" in
+	  e | error   ) echo "${ERROR}" ;;
+   	  w | warning ) echo "${WARNING}" ;;
+	  i | info    ) echo "${INFO}" ;;
+	  d | debug   ) echo "${DEBUG}" ;;
+      *           ) \
+	  create_iso_logger -m "Invalid type '$1'" -T "LOGGER"; return 1 \
+	  ;;
+	esac
+}
+
+create_iso_logger() {
+	local type
+	local tag
+	local msg
+	local script
+	local line
+	local log_line
+	local mail
+
+	type="${ERROR}"
+	script="$(basename "${BASH_SOURCE[1]}")"
+	line="${BASH_LINENO[0]}"
+
+	while true; do
+    	case "${1}" in
+          -t | --type    ) type="$(map_type "$2")" || return; shift; shift ;;
+          -T | --tag     ) tag="$2"; shift; shift ;;
+          -m | --message ) msg="$2"; shift; shift ;;
+          -s | --script  ) script="$2"; shift; shift ;;
+          -l | --line    ) line="$2"; shift; shift ;;
+          -*             ) \
+		  create_iso_logger -m "Unrecognized option '$1'" -T "LOGGER"; return \
+		  ;;
+ 	      *              ) break ;;
+    	esac
+	done
+
+	# If the type is enabled
+	if [[ "$((${VERBOSE_FLAGS} & ${type}))" -eq "${type}" ]]; then
+        if [[ -z "${tag}" ]]; then
+            log_line="[${script}]: line ${line}: ${msg}"
+        else
+        	log_line="[${script}]: line ${line}: [${tag}]: ${msg}"
+        fi
+
+		case "${type}" in
+		  "${ERROR}"   ) log_line="\033[38;5;9m[ERROR]: ${log_line}\033[0m" ;;
+		  "${WARNING}" ) \
+		  log_line="\033[38;5;11m[WARNING]: ${log_line}\033[0m" \
+		  ;;
+		  "${INFO}"    ) log_line="\033[38;5;10m[INFO]: ${log_line}\033[0m" ;;
+		  "${DEBUG}"   ) log_line="\033[38;5;6m[DEBUG]: ${log_line}\033[0m" ;;
+		  *            ) \
+		  create_iso_logger -m "Invalid type '${type}'" -T "LOGGER"; return \
+		  ;;
+		esac
+
+		echo -e "${log_line}" 1>&2
+		echo -e "${log_line}" >> "${LOG_FILE}"
+
+		if [[ "${type}" == "${ERROR}" ]] || [[ "${type}" == "${DEBUG}" ]]; then
+			if [[ "${_MAIL}" == true ]]; then
+				mail="$(sed "s/##SUBJECT##/${TIME_STAMP}/" < \
+				"${PREFIX}/src/mail.txt")"
+				mail="${mail}"$'\n'"$(screen -ls)"
+				mail="${mail}"$'\n'"$(tail --lines=20 "${LOG_FILE}")"
+				sendmail -t <<< "${mail}"
+			fi
+			/bin/bash
+		fi
+	else
+		create_iso_logger -m "Tried to use disabled type '${type}'" -T "LOGGER"
+	fi
+}

lib/overlay.sh → include/mount.sh

@@ -21,54 +21,30 @@
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
 # USA.
 
-mountOverlay() {
-    local chrootdir="${1}"
-    local tmpfs="${2}"
-    local prefix="${PWD}"
+# Mount if it isn't already mounted
+cond_mount() {
+    local source="$1"
+    local mountpoint="$2"
+    local types="$3"
+    local options="$4"
 
-    mkdir --parents "${tmpfs}/upper"
-    mkdir --parents "${tmpfs}/work"
-    mkdir --parents "${chrootdir}"
+    mkdir --parents "${mountpoint}"
 
-    if [ ! -d "${tmpfs}" ]; then
-        echo "overlay path: '${tmpfs}' has not been found."
-        exit 1
-    fi
-    if [ ! -d "${tmpfs}/upper" ]; then
-        echo "upperdir path: '${tmpfs}/upper' has not been found."
-        exit 1
-    fi
-    if [ ! -d "${tmpfs}/work" ]; then
-        echo "workdir path: '${tmpfs}/work' has not been found."
-        exit 1
-    fi
-    if [ ! -d "${chrootdir}" ]; then
-        echo "merge point path: '${chrootdir}' has not been found."
-        exit 1
-    fi
-    if [ ! -d "${prefix}/chroot" ]; then
-        echo "chroot path: '${prefix}/chroot' has not been found."
-        exit 1
-    fi
-
-    if ! mountpoint --quiet "${chrootdir}"; then
-        if ! mount --types overlay overlay --options rw,lowerdir="${prefix}"/chroot,upperdir="${tmpfs}"/upper,workdir="${tmpfs}"/work "${chrootdir}"; then
-            echo "Overlay could not be mounted:" >&2
-            echo "  lowerdir: '${prefix}/chroot'" >&2
-            echo "  upperdir: '${tmpfs}/upper'" >&2
-            echo "  workdir: '${tmpfs}/work'" >&2
-            echo "mount point: '${chrootdir}'" >&2
-            exit 1
-        fi
+    if ! mountpoint --quiet "${mountpoint}"; then
+        mount "${source}" "${mountpoint}" --types "${types}" --options \
+        "${options}" || \
+        create_iso_logger --message \
+        "Unable to mount ${source} on ${mountpoint}" --tag "mount"
     fi
 }
 
-umountOverlay() {
-    local chrootdir="${1}"
-    local tmpfs="${2}"
-    if mountpoint --quiet "${chrootdir}"; then
-        umount "${chrootdir}"