87 lines
2.4 KiB
JavaScript
87 lines
2.4 KiB
JavaScript
#!/usr/bin/env bun
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/**
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* Build script for Letta Code CLI
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* Bundles TypeScript source into a single JavaScript file
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*/
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import { cpSync, existsSync, readFileSync, rmSync } from "node:fs";
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import { dirname, join } from "node:path";
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import { fileURLToPath } from "node:url";
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const __filename = fileURLToPath(import.meta.url);
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const __dirname = dirname(__filename);
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// Read version from package.json
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const pkg = JSON.parse(readFileSync(join(__dirname, "package.json"), "utf-8"));
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const version = pkg.version;
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console.log(`📦 Building Letta Code v${version}...`);
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await Bun.build({
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entrypoints: ["./src/index.ts"],
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outdir: ".",
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target: "node",
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format: "esm",
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minify: false, // Keep readable for debugging
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sourcemap: "external",
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naming: {
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entry: "letta.js",
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},
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define: {
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LETTA_VERSION: JSON.stringify(version),
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BUILD_TIME: JSON.stringify(new Date().toISOString()),
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},
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// Load text files as strings (for markdown, etc.)
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loader: {
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".md": "text",
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".mdx": "text",
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".txt": "text",
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},
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});
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// Add shebang to output file
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const outputPath = join(__dirname, "letta.js");
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let content = readFileSync(outputPath, "utf-8");
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// Remove any existing shebang first
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if (content.startsWith("#!")) {
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content = content.slice(content.indexOf("\n") + 1);
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}
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// Patch secrets requirement back in for node build
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content = content.replace(
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`(()=>{throw new Error("Cannot require module "+"bun");})().secrets`,
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`globalThis.Bun.secrets`,
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);
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/**
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* Polyglot shebang
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* Prefer bun, fallback to node
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* ref: https://sambal.org/2014/02/passing-options-node-shebang-line/
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*/
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const withShebang = `#!/bin/sh
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":" //#; exec /usr/bin/env sh -c 'command -v bun >/dev/null && exec bun "$0" "$@" || exec node "$0" "$@"' "$0" "$@"
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${content}`;
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await Bun.write(outputPath, withShebang);
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// Make executable
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await Bun.$`chmod +x letta.js`;
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// Copy bundled skills to skills/ directory for shipping
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const bundledSkillsSrc = join(__dirname, "src/skills/builtin");
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const bundledSkillsDst = join(__dirname, "skills");
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if (existsSync(bundledSkillsSrc)) {
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// Clean and copy
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if (existsSync(bundledSkillsDst)) {
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rmSync(bundledSkillsDst, { recursive: true });
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}
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cpSync(bundledSkillsSrc, bundledSkillsDst, { recursive: true });
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console.log("📂 Copied bundled skills to skills/");
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}
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console.log("✅ Build complete!");
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console.log(` Output: letta.js`);
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console.log(` Size: ${(Bun.file(outputPath).size / 1024).toFixed(0)}KB`);
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