Shapefileが入ったディレクトリを一括で一つのmbtilesにアーカイブする

build.sh

#!/bin/bash -e

input=${1}
outdir=$(mktemp -d)

echo "Output: $outdir"

for shp in $(find "$input" -name '*.shp'); do
  name=$(basename "$shp" .shp)
  out_geojson="${outdir}/${name}.ndgeojson"
  s_srs_args=""
  if [[ ! -f "${outdir}/${name}.prj" ]]; then
    s_srs_args="-s_srs EPSG:2446 "
  fi
  ogr2ogr $s_srs_args -t_srs EPSG:4326 -f GeoJSONSeq "${out_geojson}" -oo "ENCODING=CP932" "${shp}"

  out_geojson2="${outdir}/${name}.1.ndgeojson"
  jq -cr --arg 'class' "$name" '.properties.class = $class' "$out_geojson" > "$out_geojson2"
done

merged_geojson="./out.ndgeojson"
find "${outdir}" -name '*.1.ndgeojson' -print0 | xargs -0 cat > "${merged_geojson}"

tippecanoe \
  -Z0 -z14 \
  --read-parallel \
  --force \
  --layer="main" \
  --output=./out.mbtiles \
  "$merged_geojson"

merged_regular_geojson="./out.geojson"
jq -s '{"type": "FeatureCollection", "features": .}' "$merged_geojson" > "$merged_regular_geojson"

rm -r "$outdir"