Add support for Garmin

backend/Dockerfile

@@ -15,12 +15,14 @@ RUN --mount=type=cache,sharing=locked,target=/var/cache/apt \
         gdal-bin \
         `# mapshaper, topojson` \
         npm \
+        `# garmin styles` \
+        git \
         && \
    rm /etc/cron.daily/apt-compat /etc/cron.daily/dpkg
 
 WORKDIR /root
 # https://github.com/moby/moby/issues/17175
-COPY Makefile .
+COPY Makefile garmin.mk .
 RUN make setup
 
 COPY scripts/ scripts/

backend/Makefile

@@ -125,5 +125,7 @@ $(WEBAPP_DIR)/%.json: $(TOPOJSON_DIR)/%.json
 
 webapp: $(WEBAPP_DIR)/municipalities.json $(WEBAPP_DIR)/limits_IT_regions.json $(WEBAPP_DIR)/limits_IT_provinces.json
 
+include garmin.mk
+
 clean:
 	rm -rf $(WORK_DIR)

backend/cronjob.sh

@@ -10,5 +10,6 @@ mkdir -p "$(dirname $logfile)"
 exec >> "$logfile"
 exec 2>&1
 
+make -C /root setup_garmin_data
 make -C /root pbf
 make -C /root -j$(nproc)

backend/garmin.mk

@@ -0,0 +1,60 @@
+MKGMAP_URL ?= https://www.mkgmap.org.uk/download/mkgmap-r4917.tar.gz
+MKGMAP_DIR = $(WORK_DIR)/mkgmap
+MKGMAP = $(MKGMAP_DIR)/mkgmap.jar
+MKGMAP_XMX = 8G
+MKGMAP_PRIORITY = 10
+SPLITTER_URL ?= https://www.mkgmap.org.uk/download/splitter-r653.jar
+SPLITTER = $(MKGMAP_DIR)/splitter.jar
+SEA_URL = https://www.thkukuk.de/osm/data/sea-latest.zip
+SEA_DIR = $(MKGMAP_DIR)/sea
+SEA = $(SEA_DIR)/.dirstamp
+BOUNDS_URL = https://www.thkukuk.de/osm/data/bounds-latest.zip
+BOUNDS_DIR = $(MKGMAP_DIR)/bounds
+BOUNDS = $(BOUNDS_DIR)/.dirstamp
+
+REPO_URL = https://github.com/lucadelu/ital.img.git
+REPO_DIR = $(MKGMAP_DIR)/ital.img
+REPO = $(REPO_DIR)/.git/HEAD
+STYLES = styles/.directory
+STYLES_DIR = $(REPO_DIR)/$(dir $(STYLES))
+
+NATION = $(notdir $(patsubst %/,%,$COUNTRY))
+
+.PHONY: setup_garmin setup_garmin_data garmin_regioni
+
+$(MKGMAP):
+	$(dir_guard)
+	curl -s "$(MKGMAP_URL)" | bsdtar --strip-components 1 -xf- -C "$(MKGMAP_DIR)"
+
+$(SPLITTER): $(MKGMAP)
+	curl -s "$(SPLITTER_URL)" -o "$@"
+
+$(SEA):
+	$(dir_guard)
+	curl -s "$(SEA_URL)" | bsdtar --strip-components 1 -xf- -C "$(SEA_DIR)"
+	touch $@
+
+$(BOUNDS):
+	$(dir_guard)
+	curl -s "$(BOUNDS_URL)" | bsdtar -xf- -C "$(BOUNDS_DIR)"
+	touch $@
+
+$(REPO):
+	cd $(dir $(REPO_DIR)) && git clone -n --depth=1 --filter=tree:0 $(REPO_URL) $(notdir $(REPO_DIR))
+
+$(STYLES): $(REPO)
+	cd $(REPO_DIR) && git sparse-checkout set --no-cone $(dir $(STYLES))
+	cd $(REPO_DIR) && git checkout
+
+setup_garmin_data: $(SEA) $(BOUNDS)
+setup_garmin: $(MKGMAP) $(SPLITTER) $(STYLES)
+setup: setup_garmin
+
+PBF_FILES_REGIONI = $(wildcard $(PBF_DIR)/regioni/*.osm.pbf)
+garmin_regioni: $(subst /pbf/,/garmin/,$(PBF_FILES_REGIONI:.osm.pbf=.tar.gz))
+all: garmin_regioni
+
+.NOTPARALLEL:
+$(OUTPUT)/garmin/%.tar.gz: $(PBF_DIR)/%.osm.pbf
+	$(dir_guard)
+	./scripts/garmin.sh "$<" "$@" "$(MKGMAP)" "-Xmx$(MKGMAP_XMX) --draw-priority=$(MKGMAP_PRIORITY)" "$(SPLITTER)" "-Xmx$(MKGMAP_XMX)" "$(STYLES_DIR)" "$(SEA_DIR)" "$(BOUNDS_DIR)"

backend/scripts/garmin.sh

@@ -0,0 +1,58 @@
+#!/bin/bash -eux
+#
+# Based on https://github.com/lucadelu/ital.img by Luca Delucchi
+
+INPUT="$1"
+OUTPUT="$2"
+MKGMAP="$3"
+MKGMAP_OPTS="$4"
+SPLITTER="$5"
+SPLITTER_OPTS="$6"
+STYLES_DIR="$7"
+SEA_DIR="$8"
+BOUNDS_DIR="$9"
+
+area_id="$(basename $OUTPUT .tar)"
+area_name="${area_id#*_}"
+temp_dir="$OUTPUT".temp/
+
+function clean() {
+    rm -rf "${temp_dir}"
+}
+trap clean EXIT INT TERM
+
+java -jar "$SPLITTER" \
+	--max-areas=4096 --max-nodes=3000000 --wanted-admin-level=8 \
+	--output-dir="$temp_dir" "$INPUT"
+java -jar "$MKGMAP" \
+	--style-file="$STYLES_DIR/general" \
+	--latin1 \
+	--country-name=Italia \
+	--country-abbr="IT" \
+	--region-name="$area_name" \
+	--area-name="$area_name" \
+	--family-name="Mappe regionali ital.img" \
+	--description="$area_name" \
+	--precomp-sea="$SEA_DIR" \
+	--generate-sea \
+	--bounds="$BOUNDS_DIR" \
+	--max-jobs \
+	--route \
+	--drive-on=detect,right \
+	--process-destination \
+	--process-exits \
+	--location-autofill=is_in,nearest \
+	--index \
+	--split-name-index \
+	--housenumbers \
+	--add-pois-to-areas \
+	--link-pois-to-ways \
+	--preserve-element-order \
+	--verbose \
+	--name-tag-list=name,name:it,loc_name,reg_name,nat_name \
+	--reduce-point-density=3.2 \
+	--make-opposite-cycleways \
+	--gmapsupp \
+	--output-dir="$temp_dir"/ \
+	"$temp_dir"/*.osm.pbf
+tar -czf "$OUTPUT" "$temp_dir"/gmapsupp.img

backend/scripts/topojson.sh

@@ -25,7 +25,8 @@ select json_object(
                 'adm', admin_level,
                 '.osm.pbf', 'pbf/regioni/' || filename || '.osm.pbf',
                 '.gpkg', 'gpkg/regioni/' || filename || '.gpkg',
-                '.obf', 'obf/regioni/' || filename || '.obf'
+                '.obf', 'obf/regioni/' || filename || '.obf',
+                '.tar.gz', 'garmin/regioni/' || filename || '.tar.gz'
              )
          ))
        )

shell.nix

@@ -31,6 +31,8 @@ pkgs.mkShellNoCC {
     # mapshaper and topojson
     nodePackages.npm
     nodejs-slim_21
+    # garmin styles
+    git
   ];
   shellHook = ''
     export LD_LIBRARY_PATH="${lib-path}"

webapp/src/components/SideMenu/DownloadItems/DownloadItems.js

@@ -37,7 +37,7 @@ const DownloadItems = ({ selectedFeature }) => {
 
   const { properties } = selectedFeature;
 
-  if (!properties[".gpkg"] && !properties[".osm.pbf"] && !properties[".obf"]) {
+  if (!properties[".gpkg"] && !properties[".osm.pbf"] && !properties[".obf"] && !properties[".tar.gz"]) {
     return null;
   }
 
@@ -68,6 +68,14 @@ const DownloadItems = ({ selectedFeature }) => {
           istat={properties.istat}
         />
       )}
+      {properties[".tar.gz"] && (
+        <ToolTipButton
+          tooltip="Garmin Format"
+          href={config.basePathFiles + "/" + properties[".tar.gz"]}
+          title="Garmin"
+          istat={properties.istat}
+        />
+      )}
     </div>
   );
 };