2025-04-21 16:12:45 -04:00
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#!/usr/bin/env bash
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set -euo pipefail
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### CONFIG ###
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SOURCE_DIR="/home/doc/genesis-tools"
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2025-04-26 08:10:36 -04:00
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DEST_HOST="root@backup.sshjunkie.com"
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DEST_PATH="/mnt/backup/images/genesis-tools"
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2025-04-21 16:12:45 -04:00
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REMOTE_LATEST_LINK="$DEST_PATH/latest"
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RETENTION_DAYS=7
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# Timestamp-based vars (only when running a snapshot)
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TIMESTAMP=$(date +%F_%H-%M)
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SNAPSHOT_NAME="$TIMESTAMP"
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REMOTE_SNAP_DIR="$DEST_PATH/$SNAPSHOT_NAME"
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# --dry-run support
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DRY_RUN=""
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if [[ "${1:-}" == "--dry-run" ]]; then
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echo "🧪 Running in dry-run mode..."
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DRY_RUN="--dry-run"
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fi
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# --list support
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if [[ "${1:-}" == "--list" ]]; then
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echo "📂 Available snapshots on $DEST_HOST:"
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ssh "$DEST_HOST" "ls -1 $DEST_PATH | sort"
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exit 0
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fi
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# --restore <timestamp> support
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if [[ "${1:-}" == "--restore" && -n "${2:-}" ]]; then
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RESTORE_TIMESTAMP="$2"
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RESTORE_REMOTE_PATH="$DEST_PATH/$RESTORE_TIMESTAMP"
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echo "🧾 Restoring snapshot $RESTORE_TIMESTAMP from $DEST_HOST..."
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ssh "$DEST_HOST" "[ -d '$RESTORE_REMOTE_PATH' ]" || {
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echo "❌ Snapshot $RESTORE_TIMESTAMP does not exist."
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exit 1
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}
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echo "⚠️ This will overwrite files in $SOURCE_DIR with those from snapshot."
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read -rp "Continue? (y/n): " confirm
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if [[ "$confirm" != "y" ]]; then
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echo "❌ Restore cancelled."
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exit 1
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fi
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rsync -a --delete -e ssh "$DEST_HOST:$RESTORE_REMOTE_PATH/" "$SOURCE_DIR/"
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echo "✅ Restore from $RESTORE_TIMESTAMP complete."
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exit 0
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fi
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# Regular snapshot mode starts here
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# Verify source directory exists
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if [[ ! -d "$SOURCE_DIR" ]]; then
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echo "❌ ERROR: Source directory $SOURCE_DIR does not exist."
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exit 1
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fi
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# Make sure destination path exists on the remote
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echo "📂 Ensuring remote path exists..."
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ssh "$DEST_HOST" "mkdir -p '$DEST_PATH'"
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# Determine whether to use --link-dest based on presence of 'latest'
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REMOTE_LD_OPTION=""
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if ssh "$DEST_HOST" "[ -e '$REMOTE_LATEST_LINK' ]"; then
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REMOTE_LD_OPTION="--link-dest=$REMOTE_LATEST_LINK"
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else
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echo "ℹ️ No 'latest' snapshot found — creating full backup."
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fi
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# Create snapshot via rsync with optional deduplication
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echo "📸 Creating snapshot: $REMOTE_SNAP_DIR"
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rsync -a --delete \
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--exclude="miscellaneous/kodakmoment.sh" \
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$DRY_RUN \
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$REMOTE_LD_OPTION \
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-e ssh "$SOURCE_DIR/" "$DEST_HOST:$REMOTE_SNAP_DIR"
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# Only perform post-processing if not a dry-run
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if [[ -z "$DRY_RUN" ]]; then
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echo "🔗 Updating 'latest' symlink..."
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ssh "$DEST_HOST" "rm -f '$REMOTE_LATEST_LINK'; ln -s '$REMOTE_SNAP_DIR' '$REMOTE_LATEST_LINK'"
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echo "🧹 Pruning snapshots older than $RETENTION_DAYS days..."
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ssh "$DEST_HOST" "find '$DEST_PATH' -maxdepth 1 -type d -mtime +$RETENTION_DAYS -exec rm -rf {} +"
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fi
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echo "✅ KodakMoment complete."
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