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| author | Karel Kočí <cynerd@email.cz> | 2017-01-24 17:05:04 +0100 |
|---|---|---|
| committer | Karel Kočí <cynerd@email.cz> | 2017-01-24 17:05:04 +0100 |
| commit | 99e0e079f76be0b4a3180c3d6bce2e348a2d9122 (patch) | |
| tree | 2e1b1ee9b557c5ff6e907023be5f725690f18aed | |
| parent | 677e2db01071fbecfbbe684c51c1db7e21a142af (diff) | |
| download | myconfigs-99e0e079f76be0b4a3180c3d6bce2e348a2d9122.tar.gz myconfigs-99e0e079f76be0b4a3180c3d6bce2e348a2d9122.tar.bz2 myconfigs-99e0e079f76be0b4a3180c3d6bce2e348a2d9122.zip | |
Reimplement backup so it uses BTRFS now
rsync-backup is no longer required.
| -rwxr-xr-x | local/bin/system-backup | 47 |
1 files changed, 32 insertions, 15 deletions
diff --git a/local/bin/system-backup b/local/bin/system-backup index 956ba31..fde63c4 100755 --- a/local/bin/system-backup +++ b/local/bin/system-backup @@ -4,10 +4,14 @@ DIRS="/etc /home /home_hdd" +# Name of the machine used in backup subvolumes +MNAME=asus # Path where backup will be mounted -MPATH=/media/backup-hdd +MPATH=/media/backup # UUID of disk UUID=b162ea95-38bb-42c6-b36a-1be98c65392c +# Mount additional arguments +MARGS="-o compress=lzo" # If disk is encrypted CRYPT=true #################################################################### @@ -25,28 +29,41 @@ if [ -z "$PART" ]; then exit -1 fi if $CRYPT; then - cryptsetup open "$PART" backup_enc || (echo Decryption failed && exit 1) - PART=/dev/mapper/backup_enc + echo -e "\e[1;33mDecrypting filesystem\e[0m" + # TODO what if already opened + cryptsetup open "$PART" backup || (echo Decryption failed && exit -2) + PART=/dev/mapper/backup + echo $PART fi +echo -e "\e[1;33mMounting\e[0m" mkdir -p "$MPATH" -mount "$PART" "$MPATH" || (echo Mount failed && exit 2) +mount $MARGS "$PART" "$MPATH" || (echo Mount failed && exit -3) + +[ -d "$MPATH"/@"$MNAME" ] || (echo There seems to be no subvolume $MNAME && exit -4) # Do backup while read -r DIR; do - echo Backing up: $DIR - rdiff-backup -b --exclude-device-files --exclude-fifos --exclude-sockets \ - --terminal-verbosity=5 --print-statistics --exclude-other-filesystems \ - "$DIR" "$MPATH/$(basename $DIR)/" - rdiff-backup --remove-older-than 100D --force \ - --terminal-verbosity=5 --print-statistics \ - "$MPATH/$(basename $DIR)/" + echo -e "\e[1;33mBacking up: $DIR\e[0m" + rsync -a --progress "$DIR" "$MPATH"/@"$MNAME"/ done <<< "$DIRS" +# Do snapshot (read only) +(cd "$MPATH"; btrfs subvolume snapshot -r @asus @asus-$(date -u +%y%m%d)) + +# Remove snapshots older than 2 months +# TODO ensure that at least five stays +(cd "$MPATH" +for s in @"$MNAME"-*; do + if [ $(expr $(date +%s) - $(stat -c %Y "$s")) -gt 5529600 ]; then + btrfs subvolume delete "$s" + fi +done) + # Unmount disk -sync -umount "$MPATH" || (echo Unmount failed. Unmount by hand. && exit 3) +sync -f "$MPATH"/@"$MNAME" +umount "$MPATH" || (echo Unmount failed. Unmount by hand. && exit -5) if $CRYPT; then - cryptsetup close backup_enc + cryptsetup close backup_enc || (echo Encryption close failed. Do by hand. && exit -6) fi # Store when we did last backup and update i3blocks status @@ -54,4 +71,4 @@ date +"%s" > /home/cynerd/.backup_date pkill -RTMIN+13 i3blocks echo -echo Backup finished +echo -e "\e[1;34mBackup finished\e[0m" |