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https://codeberg.org/hyperreal/bin
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47 lines
1.5 KiB
Bash
Executable File
47 lines
1.5 KiB
Bash
Executable File
#!/usr/bin/env bash
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LOGFILE="/var/log/btrfs-backup.log"
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SNAP_DATE=$(date '+%Y-%m-%d_%H%M%S')
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send_matrix_webhook() {
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/usr/local/bin/send-matrix-webhook "btrfs-backup failed on $(hostname)"
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}
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trap send_matrix_webhook SIGINT SIGTERM
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# Check if device is mounted
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if ! grep "/srv/backup" /etc/mtab >/dev/null; then
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echo "[$(date '+%Y-%m-%d %H:%M:%S')] Backup device is not mounted." | tee -a "$LOGFILE"
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notify-send -i computer-fail "Backup device is not mounted"
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exit 1
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fi
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create_snapshot() {
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if ! btrfs subvolume snapshot -r "$1" "${1}/.snapshots/$2-$SNAP_DATE" >/dev/null; then
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echo "[$(date '+%Y-%m-%d %H:%M:%S')] Error creating snapshot of $1" | tee -a "$LOGFILE"
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notify-send -i computer-fail "Error creating snapshot of $1"
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exit 1
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else
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echo "[$(date '+%Y-%m-%d %H:%M:%S')] Create snapshot of $1: OK" | tee -a "$LOGFILE"
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fi
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}
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send_snapshot() {
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mkdir -p "/srv/backup/$SNAP_DATE"
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if ! btrfs send -q "${1}/.snapshots/$2-$SNAP_DATE" | btrfs receive -q "/srv/backup/$SNAP_DATE"; then
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echo "[$(date '+%Y-%m-%d %H:%M:%S')] Error sending snapshot of $1 to /srv/backup" | tee -a "$LOGFILE"
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notify-send -i computer-fail "Error sending snapshot of $1 to /srv/backup"
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exit 1
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else
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echo "[$(date '+%Y-%m-%d %H:%M:%S')] Send snapshot of $1 to /srv/backup: OK" | tee -a "$LOGFILE"
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fi
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}
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# Create root and home snapshots
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create_snapshot "/" "root"
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create_snapshot "/home" "home"
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# Send root and home snapshots
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send_snapshot "/" "root"
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send_snapshot "/home" "home"
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