feat: rewrite of publish to go back to js from binaries (#3)

build.js

@@ -0,0 +1,59 @@
+#!/usr/bin/env bun
+
+/**
+ * Build script for Letta Code CLI
+ * Bundles TypeScript source into a single JavaScript file
+ */
+
+import { readFileSync } from "node:fs";
+import { join, dirname } from "node:path";
+import { fileURLToPath } from "node:url";
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = dirname(__filename);
+
+// Read version from package.json
+const pkg = JSON.parse(readFileSync(join(__dirname, "package.json"), "utf-8"));
+const version = pkg.version;
+
+console.log(`📦 Building Letta Code v${version}...`);
+
+await Bun.build({
+  entrypoints: ["./src/index.ts"],
+  outdir: ".",
+  target: "node",
+  format: "esm",
+  minify: false, // Keep readable for debugging
+  sourcemap: "external",
+  naming: {
+    entry: "letta.js",
+  },
+  define: {
+    "process.env.LETTA_VERSION": JSON.stringify(version),
+  },
+  // Load text files as strings (for markdown, etc.)
+  loader: {
+    ".md": "text",
+    ".mdx": "text",
+    ".txt": "text",
+  },
+});
+
+// Add shebang to output file
+const outputPath = join(__dirname, "letta.js");
+let content = readFileSync(outputPath, "utf-8");
+
+// Remove any existing shebang first
+if (content.startsWith("#!")) {
+  content = content.slice(content.indexOf("\n") + 1);
+}
+
+const withShebang = `#!/usr/bin/env node\n${content}`;
+await Bun.write(outputPath, withShebang);
+
+// Make executable
+await Bun.$`chmod +x letta.js`;
+
+console.log("✅ Build complete!");
+console.log(`   Output: letta.js`);
+console.log(`   Size: ${(await Bun.file(outputPath).size / 1024).toFixed(0)}KB`);