Add Gulp script to create a dist archive

.gitignore

@@ -8,3 +8,4 @@ site/
 dist/
 coverage/
 .vscode/
+dist.zip

gulpfile.js

@@ -0,0 +1,49 @@
+import gulp from "gulp";
+import rename from "gulp-rename";
+import replace from "gulp-replace";
+import zip from "gulp-zip";
+import merge from "merge-stream";
+
+const { dest, src } = gulp;
+
+export const createDistArchive = () =>
+  merge(
+    // index.browser.js files
+    src("packages/*/dist/index.browser.js", { root: "packages/" })
+      // Rename dist files
+      .pipe(
+        rename((path) => {
+          const packageName = path.dirname.split("/")[0];
+
+          path.dirname = "/dist";
+          path.basename = packageName;
+        })
+      )
+      // Remove sourceMappingURL comments
+      .pipe(replace(/\/\/# sourceMappingURL=.*\n/g, "")),
+
+    // jspsych.css
+    src("packages/jspsych/css/jspsych.css").pipe(rename("/dist/jspsych.css")),
+
+    // Examples
+    src("examples/**/*", { base: "." })
+      // Rewrite script source paths
+      .pipe(
+        replace(
+          /<script src="(.*)\/packages\/(.*)\/dist\/index\.browser\.js"><\/script>/g,
+          '<script src="$1/dist/$2.js"></script>'
+        )
+      )
+      // Rewrite jspsych css source paths
+      .pipe(
+        replace(
+          /<link rel="stylesheet" href="(.*)\/packages\/jspsych\/css\/(.*)" \/>/g,
+          '<link rel="stylesheet" href="$1/dist/$2" />'
+        )
+      ),
+
+    // Other files
+    src(["*.md", "license.txt"])
+  )
+    .pipe(zip("dist.zip"))
+    .pipe(dest("."));

package.json

@@ -1,11 +1,13 @@
 {
   "private": true,
+  "type": "module",
   "workspaces": [
     "packages/*"
   ],
   "scripts": {
     "test": "jest",
     "build": "npm run build -ws",
+    "build:archive": "gulp createDistArchive",
     "prepare": "npm run build",
     "tsc": "npm run tsc -ws"
   },
@@ -16,11 +18,18 @@
     "@rollup/plugin-commonjs": "^19.0.0",
     "@rollup/plugin-json": "^4.1.0",
     "@rollup/plugin-node-resolve": "^13.0.0",
+    "@types/gulp": "^4.0.9",
     "@types/jest": "^26.0.23",
     "canvas": "^2.8.0",
+    "gulp": "^4.0.2",
+    "gulp-cli": "^2.3.0",
+    "gulp-rename": "^2.0.0",
+    "gulp-replace": "^1.1.3",
+    "gulp-zip": "^5.1.0",
     "import-sort-style-module": "^6.0.0",
     "jest": "^27.0.6",
     "jest-environment-jsdom": "^27.0.6",
+    "merge-stream": "^2.0.0",
     "prettier": "^2.3.2",
     "prettier-plugin-import-sort": "^0.0.7",
     "rollup": "^2.52.7",