wip GDB10LT instead of OSM

IV/Makefile

@@ -1,8 +1,9 @@
 OSM ?= lithuania-latest.osm.pbf
-WHERE ?= name='Visinčia' OR name='Šalčia' OR name='Nemunas' OR name='Merkys'
+RIVERFILTER = Visinčia|Šalčia|Nemunas
-#WHERE ?= name like '%'
 SLIDES = slides-2021-03-29.pdf
 
+GDB10LT ?= $(wildcard GDB10LT-static-*.zip)
+
 # Max figure size (in meters) is when it's width is TEXTWIDTH_CM on scale 1:25k
 SCALEDWIDTH = $(shell awk '/^TEXTWIDTH_CM/{print 25000/100*$$3}' layer2img.py)
 
@@ -281,12 +282,20 @@ $(OSM):
 	wget http://download.geofabrik.de/europe/$@
 
 .PHONY: refresh-rivers
-refresh-rivers: aggregate-rivers.sql $(OSM) .faux_db ## Refresh rivers.sql from Open Street Maps
+refresh-rivers: aggregate-rivers.sql .faux_db ## Refresh rivers.sql from GDB10LT
-	PGPASSWORD=osm osm2pgsql -c --multi-geometry -H 127.0.0.1 -d osm -U osm $(OSM)
+	@if [ ! -f "$(GDB10LT)" ]; then \
-	bash db -v where="$(WHERE)" -f $<
+		echo "ERROR: GDB10LT-static-*.zip not found. Do GDB10LT=<...>"; \
+		exit 1; \
+	fi
+	mkdir -p .tmp/shp; unzip -d .tmp/shp "$(GDB10LT)" 'HIDRO_L.*'
+	shp2pgsql -s 3857 -d ".tmp/shp/HIDRO_L.shp" | \
+		awk '!/^INSERT/{print}; /^INSERT/&&/$(RIVERFILTER)/{print;next}' | \
+		bash ./db
+	bash db -f $<
 	(\
 		echo '-- Generated at $(shell TZ=UTC date +"%FT%TZ") on $(shell whoami)@$(shell hostname -f)'; \
-		echo '-- Select: $(WHERE)'; \
+		echo '-- Rivers: $(RIVERFILTER)'; \
 		docker exec wm-mj pg_dump --clean -Uosm osm -t wm_rivers | tr -d '\r' \
 	) > rivers.sql.tmp
 	mv rivers.sql.tmp rivers.sql
+	rm -fr .tmp/shp

IV/aggregate-rivers.sql

@@ -1,7 +1,7 @@
 /* Aggregates rivers by name and proximity. */
 drop function if exists aggregate_rivers;
 create function aggregate_rivers() returns table(
-  osm_id bigint,
+  id bigint,
   name text,
   way geometry
 ) as $$
@@ -12,7 +12,7 @@ declare
 begin
   while (select count(1) from wm_rivers_tmp) > 0 loop
     select * from wm_rivers_tmp limit 1 into c;
-    delete from wm_rivers_tmp a where a.osm_id = c.osm_id;
+    delete from wm_rivers_tmp a where a.id = c.id;
     changed = true;
     while changed loop
       changed = false;
@@ -22,11 +22,11 @@ begin
           st_dwithin(a.way, c.way, 500)
         ) loop
         c.way = st_linemerge(st_union(c.way, cc.way));
-        delete from wm_rivers_tmp a where a.osm_id = cc.osm_id;
+        delete from wm_rivers_tmp a where a.id = cc.id;
         changed = true;
       end loop;
     end loop; -- while changed
-    return query select c.osm_id, c.name, c.way;
+    return query select c.id, c.name, c.way;
   end loop; -- count(1) from wm_rivers_tmp > 0
   return;
 end
@@ -35,13 +35,12 @@ $$ language plpgsql;
 drop index if exists wm_rivers_tmp_id;
 drop index if exists wm_rivers_tmp_gix;
 drop table if exists wm_rivers_tmp;
-create temporary table wm_rivers_tmp (osm_id bigint, name text, way geometry);
+create temporary table wm_rivers_tmp (id bigint, name text, way geometry);
-create index wm_rivers_tmp_id on wm_rivers_tmp(osm_id);
+create index wm_rivers_tmp_id on wm_rivers_tmp(id);
 create index wm_rivers_tmp_gix on wm_rivers_tmp using gist(way) include(name);
 
 insert into wm_rivers_tmp
-  select p.osm_id, p.name, p.way from planet_osm_line p
+  select p.gid as id, p.vardas as name, p.geom as way from hidro_l p;
-    where waterway in ('river', 'stream', 'canal') and :where;
 
 drop table if exists wm_rivers;
 create table wm_rivers as (