mirror of
https://github.com/excalidraw/excalidraw.git
synced 2025-10-31 02:44:50 +01:00
76 lines
2.3 KiB
JavaScript
76 lines
2.3 KiB
JavaScript
/**
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* This script is used to convert the wasm modules into js modules, with the binary converted into base64 encoded strings.
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*/
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const fs = require("fs");
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const path = require("path");
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const wasmModules = [
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{
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pkg: `../node_modules/fonteditor-core`,
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src: `./wasm/woff2.wasm`,
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dest: `../packages/excalidraw/fonts/wasm/woff2-wasm.ts`,
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},
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{
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pkg: `../node_modules/harfbuzzjs`,
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src: `./wasm/hb-subset.wasm`,
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dest: `../packages/excalidraw/fonts/wasm/hb-subset-wasm.ts`,
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},
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];
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for (const { pkg, src, dest } of wasmModules) {
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const packagePath = path.resolve(__dirname, pkg, "package.json");
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const licensePath = path.resolve(__dirname, pkg, "LICENSE");
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const sourcePath = path.resolve(__dirname, src);
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const destPath = path.resolve(__dirname, dest);
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const {
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name,
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version,
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author,
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license,
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authors,
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licenses,
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} = require(packagePath);
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const licenseContent = fs.readFileSync(licensePath, "utf-8") || "";
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const base64 = fs.readFileSync(sourcePath, "base64");
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const content = `// GENERATED CODE -- DO NOT EDIT!
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/* eslint-disable */
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// @ts-nocheck
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/**
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* The following wasm module is generated with \`scripts/buildWasm.js\` and encoded as base64.
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*
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* The source of this content is taken from the package "${name}", which contains the following metadata:
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*
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* @author ${author || JSON.stringify(authors)}
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* @license ${license || JSON.stringify(licenses)}
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* @version ${version}
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${licenseContent}
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*/
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// faster atob alternative - https://github.com/evanw/esbuild/issues/1534#issuecomment-902738399
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const __toBinary = /* @__PURE__ */ (() => {
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const table = new Uint8Array(128);
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for (let i = 0; i < 64; i++)
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{table[i < 26 ? i + 65 : i < 52 ? i + 71 : i < 62 ? i - 4 : i * 4 - 205] = i;}
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return (base64) => {
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const n = base64.length; const bytes = new Uint8Array((n - (base64[n - 1] == "=") - (base64[n - 2] == "=")) * 3 / 4 | 0);
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for (let i2 = 0, j = 0; i2 < n; ) {
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const c0 = table[base64.charCodeAt(i2++)]; const c1 = table[base64.charCodeAt(i2++)];
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const c2 = table[base64.charCodeAt(i2++)]; const c3 = table[base64.charCodeAt(i2++)];
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bytes[j++] = c0 << 2 | c1 >> 4;
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bytes[j++] = c1 << 4 | c2 >> 2;
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bytes[j++] = c2 << 6 | c3;
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}
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return bytes;
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};
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})();
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export default __toBinary(\`${base64}\`);
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`;
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fs.writeFileSync(destPath, content);
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}
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