Add MCAD library

Makefile

@@ -129,7 +129,11 @@ libs/mpfr-4.1.0:
 	rm mpfr-4.1.0.tar.xz
 
 res: \
-	res/liberation
+	res/liberation \
+	res/MCAD
 
 res/liberation:
 	git clone --recurse https://github.com/shantigilbert/liberation-fonts-ttf.git ${SHALLOW} ${SINGLE_BRANCH} $@
+
+res/MCAD:
+	git clone https://github.com/openscad/MCAD.git ${SHALLOW} ${SINGLE_BRANCH} $@

runtime/plugins/embed-file.js

@@ -13,7 +13,7 @@ export default function embedFile() {
   async function loadFolder(path) {
     const files = {};
 
-    const res = await promisify(glob)("**/*", { cwd: resolve(path) });
+    const res = await promisify(glob)("**/*", { cwd: resolve(path), nodir: true });
     for (const file of res) {
       files[file] = readFileSync(join(path, file)).toString("hex");
     }

runtime/rollup.config.js

@@ -7,7 +7,12 @@ const bundle = (name) => ({
     file: `dist/${name}.js`,
     format: "esm",
   },
-  plugins: [embedFile(), typescript({ tsconfig: "./tsconfig.json" })],
+  plugins: [
+    embedFile(), 
+    typescript({ tsconfig: "./tsconfig.json" })],
 });
 
-export default [bundle("openscad.fonts")];
+export default [
+  bundle("openscad.fonts"),
+  bundle("openscad.mcad")
+];

runtime/src/files.ts

@@ -0,0 +1,3 @@
+export function fromHex(hex: string): Uint8Array {
+  return new Uint8Array(hex.match(/../g)!.map((h) => parseInt(h, 16)));
+}

runtime/src/openscad.fonts.ts

@@ -1,4 +1,6 @@
 import { OpenSCAD } from "./openscad";
+import { fromHex } from "./files";
+
 import config from "../../res/fonts/fonts.conf";
 import fonts from "../../res/liberation";
 
@@ -9,7 +11,3 @@ export function addFonts(openscad: OpenSCAD) {
     openscad.FS.writeFile("/fonts/" + file, fromHex(data));
   }
 }
-
-function fromHex(hex: string): Uint8Array {
-  return new Uint8Array(hex.match(/../g)!.map(h=>parseInt(h,16)))
-}

runtime/src/openscad.mcad.ts

@@ -0,0 +1,13 @@
+import { OpenSCAD } from "./openscad";
+import { fromHex } from "./files";
+
+import mcad from "../../res/MCAD";
+
+export function addMCAD(openscad: OpenSCAD) {
+  openscad.FS.mkdir("/libraries");
+  openscad.FS.mkdir("/libraries/MCAD");
+
+  for (const [file, data] of Object.entries(mcad as Record<string, string>)) {
+    openscad.FS.writeFile("/libraries/MCAD/" + file, fromHex(data));
+  }
+}