Backup on google drive. Encryption is added.

backup/backup.git.sh

@@ -1,10 +1,57 @@
+CD=cd
 DATE=/bin/date
 TAR=/bin/tar
-TIMESTAMP=`$DATE +%Y%m%d-%H:%M%z`
+BZIP2=/bin/bzip2
+GPG=/usr/bin/gpg
+PASS=/home/vahagn/.gnupg/backup-passphrase
+SRC=/home/vahagn/git
+KEEP=5
+BACKUP_DIR=/home/vahagn/gdrive/backup
 
+TIMESTAMP=`$DATE +%Y%m%d-%H:%M%z`
 LOG=/mnt/hdd/backup/backup.git.$TIMESTAMP.log
+BACKUP=$BACKUP_DIR/git.$TIMESTAMP.tar.bz2.gpg
+SIGNATURE=$BACKUP_DIR/git.$TIMESTAMP.tar.bz2.sig
+
+#
+# debug
+#
+#LOG=/home/vahagn/devel/scripts/backup/log.log
+#BACKUP=/home/vahagn/devel/scripts/backup/git.tar.bz2.gpg
+#SRC=/home/vahagn/git/scripts.git
+
+#
+#	Header
+#
 echo Starting $LOG | tee -a $LOG
 echo start `$DATE` | tee -a $LOG
-$TAR -cjvf /mnt/hdd/backup/git.$TIMESTAMP.tar.bz2 /home/vahagn/git | tee -a $LOG
+#
+#	cd to git directory and then bzip2 all content and crypt it.
+#
+$CD $SRC
+($TAR -cvp . | $BZIP2 -c | $GPG -c --passphrase-file $PASS --output $BACKUP) 2>&1| tee -a $LOG
+#
+#	Remove old files
+#
+$CD $BACKUP_DIR 
+i=0
+for FILE in `ls -t git.*.tar.bz2.gpg`; do
+	if [ $i -ge $KEEP ]; then
+		echo "$FILE is removed to meet keep number of backups $KEEP." | tee -a $LOG
+		rm $FILE 2>&1| tee -a $LOG
+	fi;
+	i=`expr $i + 1`
+done
+i=0
+for FILE in `ls -t git.*.tar.bz2.sig`; do
+	if [ $i -ge $KEEP ]; then
+		echo "$FILE is removed to meet keep number of backups $KEEP." | tee -a $LOG
+		rm $FILE 2>&1| tee -a $LOG
+	fi;
+	i=`expr $i + 1`
+done
+#
+#	Footer
+#
 echo end `$DATE` | tee -a $LOG