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Refactor rsync-backup
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20
bin/rsync-backup
Normal file → Executable file
20
bin/rsync-backup
Normal file → Executable file
@ -1,29 +1,21 @@
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#!/usr/bin/env bash
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# A script to perform incremental backups with rsync
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# Source: https://linuxconfig.org/how-to-create-incremental-backups-using-rsync-on-linux
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set -o errexit
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set -o nounset
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set -o pipefail
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readonly BACKUP_DIR="/mnt/backup"
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readonly DATETIME
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DATETIME="$(date '+%Y-%m-%d_%H:%M:%S')"
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readonly BACKUP_DIR="/mnt/backup"
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readonly BACKUP_PATH="${BACKUP_DIR}/${DATETIME}"
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readonly LATEST_LINK="${BACKUP_DIR}/latest"
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readonly TEMP_DIR
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TEMP_DIR=$(mktemp -d || echo "Failed to make temp dir"; exit 1)
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chmod 700 "${TEMP_DIR}"
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trap 'rm -rf "${TEMP_DIR}"; exit 0' 0 1 2 3 15
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mkdir -p "${BACKUP_DIR}"
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trap 'rm -rf "${TEMP_DIR}"; exit 0' EXIT SIGHUP SIGINT SIGQUIT SIGTERM
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while read -r line; do
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rsync -aAX "$line" "${TEMP_DIR}";
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done </etc/rsync-includes.txt
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rsync -av --delete "${TEMP_DIR}/" --link-dest "${LATEST_LINK}" --exclude=".cache" "${BACKUP_PATH}"
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rsync -av --delete "${TEMP_DIR}/" --link-dest="${LATEST_LINK}" "${BACKUP_PATH}"
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rm -rf "${LATEST_LINK}"
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ln -s "${BACKUP_PATH}" "${LATEST_LINK}"
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rm -f "${LATEST_LINK}"
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ln -sf "${BACKUP_PATH}" "${LATEST_LINK}"
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@ -1,8 +1,8 @@
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[Unit]
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Description=rsync-backup
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AssertFileIsExecutable=/usr/local/bin/rsync-backup
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Requires=hyperreal.coffee-share.mount
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After=hyperreal.coffee-share.mount
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Requires=mnt-backup.mount
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After=mnt-backup.mount
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[Service]
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Type=oneshot
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@ -2,7 +2,7 @@
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Description=rsync-backup
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[Timer]
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OnCalendar=weekly
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OnCalendar=Sun *-*-* 23:30:00
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Persistent=true
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[Install]
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