forked from Dark-Horse-Linux/pyrois
111 lines
3.0 KiB
Bash
Executable File
111 lines
3.0 KiB
Bash
Executable File
#!/bin/bash
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# move this to the makefile as a dedicated target
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set -u
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APPNAME="Offer Backup"
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# ISO 8601 variation
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TIMESTAMP="$(date +%Y-%m-%d_%H%M%S)"
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LOG_DIR="${LOGS_ROOT}/${APPNAME}-${TIMESTAMP}"
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# the file to log to
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LOGFILE="${APPNAME}.log"
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logprint() {
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mkdir -p "${LOG_DIR}"
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echo "[$(date +%Y-%m-%d_%H:%M:%S)] [${APPNAME}] $1" \
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| tee -a "${LOG_DIR}/${LOGFILE}"
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}
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logprint "Giving the user the option of backing up before proceeding."
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is_mounted() {
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findmnt $1 &> /dev/null
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if [ $? != 0 ]; then
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logprint "Not mounted...skipping."
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/usr/bin/false
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else
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logprint "Mounted..."
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/usr/bin/true
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fi
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}
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function disarm_chroot() {
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logprint "Unmounting CHROOT VFKS mounts"
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logprint "Unmounting ${T_SYSROOT}/dev"
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is_mounted ${T_SYSROOT}/dev && umount -l ${T_SYSROOT}/dev
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logprint "Unmounting ${T_SYSROOT}/dev/pts"
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is_mounted ${T_SYSROOT}/dev/pts && umount -l ${T_SYSROOT}/dev/pts
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logprint "Unmounting ${T_SYSROOT}/proc"
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is_mounted ${T_SYSROOT}/proc && umount -l ${T_SYSROOT}/proc
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# not a symlink on ubuntu
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logprint "Unmounting ${T_SYSROOT}/dev/shm"
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is_mounted ${T_SYSROOT}/dev/shm && umount -l ${T_SYSROOT}/dev/shm
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logprint "Unmounting pyrois inside of chroot"
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is_mounted ${T_SYSROOT}/rex_embedded && umount -l ${T_SYSROOT}/rex_embedded
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}
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function perform_backup() {
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logprint "Entering backup routine."
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disarm_chroot
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disarm_chroot
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logprint "Performing backup...This will take a long time..."
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pushd ${dir_artifacts}
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tar cpzf ${project_root}/${TIMESTAMP}.backup.tgz *
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assert_zero $?
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logprint "Backup completed successfully. Moving on."
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logprint "Entering project root."
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pushd ${project_root}
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assert_zero $?
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logprint "Re-arming chroot..."
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make arm_chroot
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echo
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logprint "You may now proceed to run 'make build_stage4'."
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echo
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}
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read -r -d '' msg <<-'EOF'
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The following prompt will ask if you'd like to back up the
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existing sysroot. This is useful for debugging, so that you don't have
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to wait for the entire cross-compilation for every change.
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If you select yes, you will see a gzipped tarball containing the
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sysroot generated in your project root. If you select no, your backup
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will not be created.
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If you skip the backup and something fails from here, you'll need to
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run "make clean" and start from the beginning.
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If you do decide to back up, which you should, should you need to
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restore from your backup, simply running "make restore" will perform
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the operations necessary.
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EOF
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read -r -d '' yn_msg <<-'EOF'
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Do you want to back up the stage?
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If you select yes, the VKFS mounts for the chroot will be unmounted temporarily to perform this operation.
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EOF
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# Use the dialog utility to display information to the user
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dialog --backtitle "Dark Horse Linux: Pyrois" --title "IMPORTANT NOTICE" --msgbox "$msg" 20 78
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# Use the dialog utility to prompt the user with a yes/no question
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dialog --backtitle "Dark Horse Linux: Pyrois" --title "Back up the stage?" --yesno "$yn_msg" 10 60
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response=$?
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if [ $response -eq 0 ]; then
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logprint "User selected to perform backups."
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perform_backup
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else
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logprint "User selected to skip backups. Moving on."
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exit 0
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fi
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