create script to load new geometries

etl/load_new_geometries.sh

@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+
+# Load new geometries from GeoJSON to Postgres
+# - assume postgres connection details are set in the environment using PGUSER, PGHOST etc.
+
+: ${1?"Usage: $0 ./path/to/mastermap/dir"}
+
+mastermap_dir=$1
+
+# Create 'geometry' record with
+#     id: <polygon-guid>,
+#     source_id: <toid>,
+#     geom: <geom>
+
+echo "Copy new geometries to db..."
+find $mastermap_dir -type f -name '*.3857.csv' \
+-printf "$mastermap_dir/%f\n" | \
+parallel \
+cat {} '|' psql -c "\"COPY geometries ( geometry_geom, source_id ) FROM stdin WITH CSV HEADER
+WHERE source_id NOT IN geometries;\""