81 lines
1.8 KiB
Bash
Executable File
81 lines
1.8 KiB
Bash
Executable File
#!/bin/sh
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# Make sure to look at sysmocom-restore to check if the file would
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# be restored right. Currently only some dirs get restored.
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FILES="etc/sysmocom/backup.d"
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# Pick some extra files
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if [ -e /etc/sysmocom/backup.d/ ]; then
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for extra in `ls /etc/sysmocom/backup.d/*.files`;
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do
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echo "Add extras from $extra."
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FILES="$FILES `cat $extra`"
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done
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fi
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DATE=`date +%Y%m%d`
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# Called for a file. Compare with the content in /ro-root
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# if this file has been modified and only take it then. In
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# case the file is not present it in /ro-root it will be
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# added to the backup set
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backup_file() {
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cmp -s /$2 /ro-root/$2
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if [ $? -ne 0 ]; then
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echo "Adding $2"
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tar -rf $1 --transform='s,^,content/,' -C / $2
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fi
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}
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# Check if this is a file, otherwise descend
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handle_file() {
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if [ -f "/$2" -a -e "/$2" ]; then
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backup_file $1 $2
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fi
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if [ -d "/$2" -a -e "/$2" ]; then
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for file in /$2/*;
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do
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# Construct to have no leading /
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handle_file $1 $2/`basename $file`
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done
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fi
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}
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do_backup_files() {
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BACKUP_FILE="/data/sysmocom-backup_$DATE.tar"
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# 0. Sanity checking
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if [ -e $BACKUP_FILE ]; then
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echo "The backup file '$BACKUP_FILE' already exists. Exiting!"
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exit 1
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fi
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# 1. Create an empty archive..
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tar -cf $BACKUP_FILE --files-from=/dev/null
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# 2. Add all the files... we need
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for file in $FILES;
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do
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handle_file $BACKUP_FILE $file
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done
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# 4. Generate more information
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NAME="/tmp/backup.$$"
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mkdir $NAME
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opkg list_installed > $NAME/installed_packages
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/sbin/ifconfig | grep HWaddr | cut -d ' ' -f 11 > $NAME/mac_addr
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# 5. Add the more information
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tar -rf $BACKUP_FILE --transform='s,^,info/,' -C $NAME installed_packages mac_addr
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# 6. Create stable link
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cd /data/
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ln -sf `basename $BACKUP_FILE` sysmocom-backup.tar
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# 76
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echo "The backup was stored to $BACKUP_FILE"
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}
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do_backup_files
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