Upgrade dependencies

.eslintrc.json

@@ -0,0 +1,6 @@
+{
+    "extends": "eslint:recommended",
+    "env": {
+        "node": true
+    }
+}

.travis.yml

@@ -12,13 +12,13 @@ addons:
 matrix:
   include:
      - os: linux
-       env: NODE_VERSION="4" COVERAGE=true
+       env: NODE_VERSION="8"
      - os: linux
-       env: NODE_VERSION="6"
+       env: NODE_VERSION="10" COVERAGE=true
      - os: osx
-       env: NODE_VERSION="4"
+       env: NODE_VERSION="8"
      - os: osx
-       env: NODE_VERSION="6"
+       env: NODE_VERSION="10"
 
 before_install:
  - rm -rf ~/.nvm/ && git clone --depth 1 https://github.com/creationix/nvm.git ~/.nvm

package.json

@@ -9,28 +9,29 @@
     "geodata"
   ],
   "dependencies": {
-    "@mapbox/sphericalmercator": "~1.0.5",
     "@mapbox/mapbox-file-sniff": "~1.0.0",
-    "srs": "~1.2.0",
-    "mapnik": "~3.7.0",
+    "@mapbox/sphericalmercator": "~1.0.5",
     "gdal": "~0.9.3",
-    "queue-async": "~1.2.0"
+    "mapnik": "~4.2.1",
+    "queue-async": "~1.2.0",
+    "srs": "~1.2.0"
   },
   "repository": {
     "type": "git",
     "url": "https://github.com/mapbox/mapnik-omnivore"
   },
   "devDependencies": {
-    "coveralls": "~2.11.1",
-    "istanbul": "~0.3.0",
-    "jscs": "^1.10.0",
-    "jshint": "^2.6.0",
+    "coveralls": "^3.0.2",
+    "nyc": "^13.3.0",
+    "eslint": "^5.13.0",
+    "eslint-config-airbnb-base": "^13.1.0",
+    "eslint-plugin-import": "^2.16.0",
     "mapnik-test-data": "https://mapbox-npm.s3.amazonaws.com/package/mapnik-test-data-2.0.5-c84800ed20a6a9bc2143dd11b1b2a3190b9ae698.tgz",
-    "tape": "3.0.x"
+    "tape": "^4.10.1"
   },
   "scripts": {
-    "test": "jshint index.js test lib && jscs index.js test lib && tape test/*.js",
-    "coverage": "istanbul cover tape test/*.test.js && coveralls < ./coverage/lcov.info"
+    "test": "eslint index.js test lib && tape test/*.js",
+    "coverage": "nyc npm test && nyc report --reporter=text-lcov | coveralls"
   },
   "bin": {
     "digest": "bin/digest"

test/fixtures/metadata_contours.json

@@ -5,12 +5,12 @@
   "filesize": 24576628,
   "center": [
     -122.31742219942615,
-    37.87235316048361
+    37.87235316048363
   ],
   "extent": [
     -122.31849442745843,
-    37.871487370753606,
-    -122.31634997139385,
+    37.871487370753634,
+    -122.31634997139386,
     37.87321895021363
   ],
   "minzoom": 19,

test/index.test.js

@@ -93,7 +93,7 @@ tape('[GeoJson] digest function should return expected metadata', function(asser
 
 tape('[GeoJson] digest function should error and return sanitized message', function(assert) {
   var fixture = path.resolve(__dirname, 'fixtures', 'parse.error.json');
-  var expectedError = 'Invalid geojson: does not contain any features';
+  var expectedError = 'Error creating Mapnik Datasource: Invalid geojson';
   mapnik_omnivore.digest(fixture, function(err) {
     assert.ok(err, 'expected error');
     assert.deepEqual(err.message, expectedError, 'expected error message');