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feat: Inline WebView bundle #2528

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merged 1 commit into from
Jul 9, 2024
Merged

feat: Inline WebView bundle #2528

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30 changes: 24 additions & 6 deletions packages/snaps-execution-environments/scripts/build.js
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Original file line number Diff line number Diff line change
Expand Up @@ -34,6 +34,7 @@ const ENTRY_POINTS = {
webview: {
entryPoint: './src/webview/index.ts',
html: true,
inlineBundle: true,
},
};

Expand Down Expand Up @@ -99,18 +100,30 @@ async function main() {
<html>
<head>
<meta charset="utf-8" />
<title>MetaMask Snaps Iframe Execution Environment</title>
<title>MetaMask Snaps Execution Environment</title>
<script>${lavaMoatRuntimeBrowser}</script>
</head>
<body>
<script src="bundle.js"></script>
</body>
</html>`;

const createInlinedHTML = (bundleSource) => `<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>MetaMask Snaps Execution Environment</title>
<script>${lavaMoatRuntimeBrowser}</script>
</head>
<body>
<script>${bundleSource}</script>
</body>
</html>`;

await Promise.all(
Object.entries(ENTRY_POINTS).map(async ([key, config]) => {
console.log('Bundling', key);
const { html, node, worker, entryPoint } = config;
const { html, node, worker, entryPoint, inlineBundle } = config;
const insertGlobalVars = node
? { process: undefined, ...LavaMoatBrowserify.args.insertGlobalVars }
: LavaMoatBrowserify.args.insertGlobalVars;
Expand Down Expand Up @@ -218,14 +231,19 @@ async function main() {
outputBundle = `${runtime}\n${outputBundle}`;
}

const bundlePath = path.join(OUTPUT_PATH, key, OUTPUT_BUNDLE);
await fs.mkdir(path.dirname(bundlePath), { recursive: true });
await fs.writeFile(bundlePath, outputBundle);
if (!inlineBundle) {
const bundlePath = path.join(OUTPUT_PATH, key, OUTPUT_BUNDLE);
await fs.mkdir(path.dirname(bundlePath), { recursive: true });
await fs.writeFile(bundlePath, outputBundle);
}

if (html) {
const htmlPath = path.join(OUTPUT_PATH, key, OUTPUT_HTML);
await fs.mkdir(path.dirname(htmlPath), { recursive: true });
await fs.writeFile(htmlPath, htmlFile);
await fs.writeFile(
htmlPath,
inlineBundle ? createInlinedHTML(outputBundle) : htmlFile,
);
}

const outputBytes = stringToBytes(outputBundle);
Expand Down
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