Scripts: add script to automatically update the database

.forgejo/workflows/update_database.yml

@@ -0,0 +1,42 @@
+on:
+  schedule:
+    - cron: "0 0 1 */2 *"
+
+
+jobs:
+  daily_data_maintenance:
+    runs-on: [ lain ]
+    steps:
+      - uses: https://source.mapcomplete.org/actions/checkout@v4
+
+      - name: Set up Node.js
+        uses: https://source.mapcomplete.org/actions/setup-node@v4
+        with:
+          node-version: "20"
+          cache: "npm"
+          cache-dependency-path: package-lock.json
+
+      - name: Init all dependencies and layers
+        shell: bash
+        run: npm run init
+
+      - name: Create export script
+        shell: bash
+        run: npm run build:dbscript # output: build_db.lua
+
+
+      - name: Print planet file date
+        shell: bash
+        run: |
+          # LAIN has a weekly updated planet file in /data/planet-latest.osm.pbf
+          # See https://source.mapcomplete.org/MapComplete/planet-file-updater
+          TIMESTAMP=$(osmium fileinfo /data/planet-latest.osm.pbf -g header.option.timestamp)
+          DATE=$(echo $TIMESTAMP | sed "s/T.*//")
+          echo $DATE
+          # Create a new database in postgres
+          vite-node scripts/osm2pgsql/createNewDatabase.ts -- $DATE
+          echo "Seeding database '$DATE'"
+          osm2pgsql -O flex -S build_db.lua -s --flat-nodes=import-help-file -d postgresql://user:password@localhost:5444/osm-poi.${DATE} /data/planet-latest.osm.pbf
+          npm run delete:database:old
+
+