Add tiles.json (#8)

* add tiles.json

.gitignore

@@ -1,2 +1,3 @@
 /docs
 .envrc
+/tiles

Dockerfile

@@ -11,6 +11,7 @@ RUN apt-get update && apt-get -y install \
 		zlib1g-dev \
 		nodejs \
 		npm \
+		jq \
 	&& \
 	mkdir -p /tmp/build && cd /tmp/build && \
   git clone https://github.com/mapbox/tippecanoe.git && \

entrypoint.sh

@@ -5,7 +5,9 @@ FILE=$1
 GEOLONIA_ACCESS_TOKEN=$2
 OUT_DIR=$3
 
+GH_REPOSITORY_NAME=$(echo $GITHUB_REPOSITORY | cut -d'/' -f2)
 TILES_OUT_DIR=$OUT_DIR/tiles
+METADATA_JSON=$TILES_OUT_DIR/metadata.json
 LAYER_NAME=data
 
 mkdir -p $TILES_OUT_DIR
@@ -22,4 +24,27 @@ else
     $FILE
 
   find $TILES_OUT_DIR -name "*.pbf" -exec sh -c 'mv "$1" "${1%.pbf}".mvt' - '{}' \;
+
+  if [ -f $METADATA_JSON ]
+  then
+
+    cat $METADATA_JSON | jq '{
+      "tilejson": "3.0.0",
+      name: .name,
+      version: .version,
+      description: .description,
+      type: .type,
+      format: .format,
+      attribution: .attribution,
+      minzoom: .minzoom,
+      maxzoom: .maxzoom,
+      center: .center,
+      bounds: .bounds,
+      "tiles": [
+        "https://'${GITHUB_REPOSITORY_OWNER}'.github.io/'${GH_REPOSITORY_NAME}'/tiles/{z}/{x}/{y}.mvt"
+      ]
+    }' > $TILES_OUT_DIR/tiles.json
+
+  fi
+
 fi