checkpoint - passing SURRO current state

2023-03-04 23:05:46 -05:00
parent 4fbe0c8d81
commit b8bfec9722
16 changed files with 472 additions and 74 deletions
--- a/rex.project/x86_64/components/backup/offer_backup.bash
+++ b/rex.project/x86_64/components/backup/offer_backup.bash
@@ -0,0 +1,110 @@
+#!/bin/bash
+# move this to the makefile as a dedicated target
+
+APPNAME="Offer Backup"
+
+# ISO 8601 variation
+TIMESTAMP="$(date +%Y-%m-%d_%H%M%S)"
+
+LOG_DIR="${LOGS_ROOT}/${APPNAME}-${TIMESTAMP}"
+
+# the file to log to
+LOGFILE="${APPNAME}.log"
+
+logprint() {
+	mkdir -p "${LOG_DIR}"
+	echo "[$(date +%Y-%m-%d_%H:%M:%S)] [${APPNAME}] $1" \
+	| tee -a "${LOG_DIR}/${LOGFILE}"
+}
+
+logprint "Giving the user the option of backing up before proceeding."
+
+is_mounted() {
+	findmnt $1 &> /dev/null
+	if [ $? != 0 ]; then
+		logprint "Not mounted...skipping."
+		/usr/bin/false
+	else
+		logprint "Mounted..."
+		/usr/bin/true
+	fi
+}
+
+function disarm_chroot() {
+	logprint "Unmounting CHROOT VFKS mounts"
+
+	logprint "Unmounting ${T_SYSROOT}/dev"
+	is_mounted ${T_SYSROOT}/dev && umount -l ${T_SYSROOT}/dev
+
+	logprint "Unmounting ${T_SYSROOT}/dev/pts"
+	is_mounted ${T_SYSROOT}/dev/pts && umount -l ${T_SYSROOT}/dev/pts
+
+	logprint "Unmounting ${T_SYSROOT}/proc"
+	is_mounted ${T_SYSROOT}/proc && umount -l ${T_SYSROOT}/proc
+
+	# not a symlink on ubuntu
+	logprint "Unmounting ${T_SYSROOT}/dev/shm"
+	is_mounted ${T_SYSROOT}/dev/shm && umount -l ${T_SYSROOT}/dev/shm
+
+	logprint "Unmounting pyrois inside of chroot"
+	is_mounted ${T_SYSROOT}/rex_embedded && umount -l ${T_SYSROOT}/rex_embedded
+}
+
+function perform_backup() {
+	logprint "Entering backup routine."
+	disarm_chroot
+	disarm_chroot
+	logprint "Performing backup...This will take a long time..."
+	pushd ${dir_artifacts}
+	tar cpzf ${project_root}/${TIMESTAMP}.backup.tgz *
+	assert_zero $?
+	logprint "Backup completed successfully.  Moving on."
+	logprint "Entering project root."
+	pushd ${project_root}
+	assert_zero $?
+	logprint "Re-arming chroot..."
+	make arm_chroot
+	echo
+	logprint "You may now proceed to run 'make build_stage4'."
+	echo
+}
+
+
+read -r -d '' msg <<-'EOF'
+This is a great stopping point for backing up the stage if you're 
+debugging.  The following prompt will ask if you'd like to back up the 
+existing sysroot, in case you need to start from stage 4 again for 
+whatever reason, such as a build failure.
+
+If you select yes, you will see a gzipped tarball containing the 
+sysroot generated in your project root.  If you select no, your backup 
+will not be created, and you'll move on to stage 4.  
+
+If you skip the backup and something fails from here, you'll need to
+run "make clean" and start from the beginning.
+
+If you do decide to back up, which you should, should you need to 
+restore from your backup, simply running "make restore" will perform 
+the operations necessary.
+EOF
+
+read -r -d '' yn_msg <<-'EOF'
+Do you want to back up the stage?
+
+If you select yes, the VKFS mounts for the chroot will be unmounted temporarily to perform this operation.
+EOF
+
+# Use the dialog utility to display information to the user
+dialog --backtitle "Dark Horse Linux: Pyrois" --title "IMPORTANT NOTICE" --msgbox  "$msg" 20 78
+
+# Use the dialog utility to prompt the user with a yes/no question
+dialog --backtitle "Dark Horse Linux: Pyrois" --title "Back up the stage?" --yesno "$yn_msg" 10 60
+response=$?
+
+if [ $response -eq 0 ]; then
+	logprint "User selected to perform backups."
+	perform_backup
+else
+	logprint "User selected to skip backups.  Moving on."
+	exit 0
+fi