feature/multi-cloud (#14)

Co-authored-by: Danijel Simeunovic <danijel.simeunovic@fortedigital.com>
Reviewed-on: #14

scripts/backup/gcp-gcs.sh

@@ -0,0 +1,26 @@
+#!/usr/bin/env bash
+set -euo pipefail
+# GCP Cloud Storage backup upload
+# Uses: gsutil (gcloud SDK)
+# Env: GCS_BUCKET (e.g. gs://my-bucket)
+
+BACKUP_FILE="${1:?Usage: $0 <backup-file>}"
+TIMESTAMP=$(date +%Y%m%d-%H%M%S)
+KEY="gitea-dump-${TIMESTAMP}.zip"
+
+echo "Uploading ${KEY}..."
+gsutil cp "$BACKUP_FILE" "${GCS_BUCKET}/${KEY}"
+echo "Upload complete."
+
+# Prune backups older than 7 days — GCS lifecycle rules are preferred,
+# but this works as a manual fallback
+echo "Pruning backups older than 7 days..."
+CUTOFF=$(date -d '7 days ago' +%Y-%m-%dT%H:%M:%SZ 2>/dev/null || date -v-7d +%Y-%m-%dT%H:%M:%SZ)
+gsutil ls -l "${GCS_BUCKET}/" \
+  | grep 'gitea-dump-' \
+  | while read -r size date name; do
+      if [[ "$date" < "$CUTOFF" ]]; then
+        gsutil rm "$name" && echo "Deleted: ${name}"
+      fi
+    done
+echo "Pruning complete."