added gulpfile

Author: FIL1994

gulpfile.js

@@ -0,0 +1,62 @@
+const fs = require("fs");
+const execSync = require("child_process").execSync;
+const prettyBytes = require("pretty-bytes");
+const gzipSize = require("gzip-size");
+const gulp = require("gulp");
+
+const exec = (command, extraEnv) =>
+  execSync(command, {
+    stdio: "inherit",
+    env: Object.assign({}, process.env, extraEnv)
+  });
+
+gulp.task("build-es", done => {
+  console.log("\nBuilding ES modules ...");
+  exec("babel src -d es --ignore *.test.js", {
+    BABEL_ENV: "es"
+  });
+  done();
+});
+
+gulp.task("build-commonjs", done => {
+  console.log("Building CommonJS modules ...");
+  exec("babel src -d lib --ignore *.test.js", {
+    BABEL_ENV: "cjs"
+  });
+  done();
+});
+
+gulp.task("build-umd-dev", done => {
+  console.log("\nBuilding UMD ...");
+  exec("rollup -c -f umd -o umd/spectre-react-lib.js", {
+    BABEL_ENV: "umd",
+    NODE_ENV: "development"
+  });
+  done();
+});
+
+gulp.task("build-umd-prod", done => {
+  console.log("\nBuilding UMD min.js ...");
+  exec("rollup -c -f umd -o umd/spectre-react-lib.min.js", {
+    BABEL_ENV: "umd",
+    NODE_ENV: "production"
+  });
+  done();
+});
+
+gulp.task("umd-size", done => {
+  const size = gzipSize.sync(fs.readFileSync("umd/spectre-react-lib.min.js"));
+  console.log("\ngzipped, the UMD build is %s", prettyBytes(size));
+  done();
+});
+
+gulp.task(
+  "build",
+  gulp.series(
+    "build-es",
+    "build-commonjs",
+    "build-umd-dev",
+    "build-umd-prod",
+    "umd-size"
+  )
+);

package-lock.json

@@ -3,7 +3,7 @@
   "version": "0.1.0",
   "description": "Spectre.css and React integration",
   "scripts": {
-    "build": "rollup -c -f umd -o umd/index.js"
+    "build": "gulp build"
   },
   "repository": {
     "type": "git",
@@ -29,6 +29,7 @@
     "@babel/preset-env": "^7.2.3",
     "@babel/preset-react": "^7.0.0",
     "gulp": "^4.0.0",
+    "gzip-size": "^5.0.0",
     "inquirer": "^6.2.1",
     "pretty-bytes": "^5.1.0",
     "react": "^16.7.0",