update the build toolchain

.eslintrc.json

@@ -0,0 +1,15 @@
+{
+  "extends": "eslint:recommended",
+  "parserOptions": {
+    "sourceType": "module",
+    "ecmaVersion": 8
+  },
+  "env": {
+    "es6": true
+  },
+  "rules": {
+    "no-cond-assign": 0,
+    "no-constant-condition": 0,
+    "no-floating-decimal": 2
+  }
+}

.gitignore

@@ -1,6 +1,6 @@
 *.sublime-workspace
 .DS_Store
-build/
+dist/
+test/output/
 node_modules
 npm-debug.log
-package-lock.json

.npmignore

@@ -1,3 +1,3 @@
 *.sublime-*
-build/*.zip
+dist/*.zip
 test/

package.json

@@ -1,11 +1,12 @@
 {
   "name": "d3-geo-polygon",
-  "version": "1.4.2",
+  "version": "1.5.0",
   "description": "Clipping and geometric operations for spherical polygons.",
   "keywords": [
     "d3",
     "d3-module",
-    "geo",
+    "cartography",
+    "projection",
     "polygon"
   ],
   "homepage": "https://github.com/d3/d3-geo-polygon",
@@ -24,30 +25,30 @@
       "url": "https://visionscarto.net"
     }
   ],
-  "main": "build/d3-geo-polygon.js",
-  "unpkg": "build/d3-geo-polygon.min.js",
-  "jsdelivr": "build/d3-geo-polygon.min.js",
-  "module": "index",
+  "main": "dist/d3-geo-polygon.js",
+  "unpkg": "dist/d3-geo-polygon.min.js",
+  "jsdelivr": "dist/d3-geo-polygon.min.js",
+  "module": "src/index.js",
   "repository": {
     "type": "git",
     "url": "https://github.com/d3/d3-geo-polygon.git"
   },
   "scripts": {
-    "pretest": "rm -rf build && mkdir build && rollup -c --banner \"$(preamble)\"",
-    "test": "tape 'test/**/*-test.js' && eslint index.js src",
-    "prepublishOnly": "npm run test && mkdir -p test/output && test/compare-images && uglifyjs -b beautify=false,preamble=\"'$(preamble)'\" build/d3-geo-polygon.js -c -m -o build/d3-geo-polygon.min.js",
-    "postpublish": "git push && git push --tags && zip -j build/d3-geo-polygon.zip -- LICENSE README.md build/d3-geo-polygon.js build/d3-geo-polygon.min.js"
+    "pretest": "rollup -c",
+    "test": "tape 'test/**/*-test.js' && eslint src",
+    "prepublishOnly": "rm -rf dist && yarn test && mkdir -p test/output && test/compare-images",
+    "postpublish": "git push && git push --tags && zip -j dist/d3-geo-polygon.zip -- LICENSE README.md dist/d3-geo-polygon.js dist/d3-geo-polygon.min.js"
   },
   "dependencies": {
     "d3-array": "1",
+    "d3-geo": "^1.11.1",
     "d3-geo-projection": "2"
   },
   "devDependencies": {
-    "d3-geo": "^1.10",
-    "eslint": "4",
-    "package-preamble": "0.1",
-    "rollup": "0.50",
-    "tape": "4",
-    "uglify-js": "3"
+    "canvas": "1",
+    "eslint": "5",
+    "rollup": "0.64",
+    "rollup-plugin-terser": "1",
+    "tape": "4"
   }
 }

rollup.config.js

@@ -1,19 +1,36 @@
-export default {
-  input: "index",
-  external: [
-    "d3-array",
-    "d3-geo",
-    "d3-geo-projection"
-  ],
+import {terser} from "rollup-plugin-terser";
+import * as meta from "./package.json";
+
+const config = {
+  input: "src/index.js",
+  external: Object.keys(meta.dependencies || {}).filter(key => /^d3-/.test(key)),
   output: {
-    extend: true,
-    file: "build/d3-geo-polygon.js",
+    file: `dist/${meta.name}.js`,
+    name: "d3",
     format: "umd",
-    globals: {
-      "d3-array": "d3",
-      "d3-geo": "d3",
-      "d3-geo-projection": "d3"
+    indent: false,
+    extend: true,
+    banner: `// ${meta.homepage} v${meta.version} Copyright ${(new Date).getFullYear()} ${meta.author.name}`,
+    globals: Object.assign({}, ...Object.keys(meta.dependencies || {}).filter(key => /^d3-/.test(key)).map(key => ({[key]: "d3"})))
+  },
+  plugins: []
+};
+
+export default [
+  config,
+  {
+    ...config,
+    output: {
+      ...config.output,
+      file: `dist/${meta.name}.min.js`
     },
-    name: "d3"
+    plugins: [
+      ...config.plugins,
+      terser({
+        output: {
+          preamble: config.output.banner
+        }
+      })
+    ]
   }
-};
+];

src/index.js

@@ -0,0 +1,14 @@
+export {default as geoClipPolygon} from "./clip/polygon";
+export {default as geoPolyhedral} from "./polyhedral/index";
+export {default as geoPolyhedralButterfly} from "./polyhedral/butterfly";
+export {default as geoPolyhedralCollignon} from "./polyhedral/collignon";
+export {default as geoPolyhedralWaterman} from "./polyhedral/waterman";
+export {default as geoPolyhedralVoronoi} from "./polyhedral/voronoi";
+export {default as geoDodecahedral} from "./polyhedral/dodecahedral";
+export {default as geoCox, coxRaw as geoCoxRaw} from "./cox.js";
+export {default as geoTetrahedralLee, leeRaw as geoLeeRaw} from "./tetrahedralLee.js";
+export {default as geoGrayFullerRaw} from "./grayfuller";
+export {default as geoAirocean} from "./airocean";
+export {default as geoIcosahedral} from "./icosahedral";
+export {default as geoCubic} from "./cubic";
+export {default as geoCahillKeyes, cahillKeyesRaw as geoCahillKeyesRaw} from "./cahillKeyes";