An experimental TypeSpec syntax for Lexicon
fixes
+61
-15
+1
-1
packages/cli/package.json
+1
-1
packages/cli/package.json
+60
-14
packages/cli/src/commands/init.ts
+60
-14
packages/cli/src/commands/init.ts
···
4
4
import { createInterface } from "readline";
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5
import pc from "picocolors";
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+
// Gradient colors matching website (approximated with ANSI 256 colors)
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// Darker variant for better readability on white terminals
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function gradientText(text: string): string {
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// Approximating: #4a9eff -> #7a8ef7 -> #ff85c1 -> #9b7ef7
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// Using darker ANSI 256 color codes for a blue->purple->pink gradient
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const colors = [
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'\x1b[38;5;33m', // darker blue
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'\x1b[38;5;69m', // blue-purple
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'\x1b[38;5;99m', // purple
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'\x1b[38;5;133m', // purple-pink
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'\x1b[38;5;170m', // pink
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'\x1b[38;5;170m', // pink
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'\x1b[38;5;133m', // purple-pink
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];
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const reset = '\x1b[0m';
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+
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return text.split('').map((char, i) => {
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const colorIndex = Math.floor((i / text.length) * colors.length);
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return colors[colorIndex] + char;
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}).join('') + reset;
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}
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function createMainTemplate(namespace: string): string {
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return `import "@typelex/emitter";
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import "./externals.tsp";
···
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return initSetup();
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}
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console.log(pc.bold("Initializing typelex project...\n"));
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console.log("Installing dependencies...");
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console.log(`Adding ${gradientText("typelex")}...\n`);
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// Detect package manager: walk up from cwd
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let packageManager = "npm";
···
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install.on("close", (code) => {
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if (code === 0) {
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console.log("\n✓ Installed @typelex/cli and @typelex/emitter\n");
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console.log(`\n${pc.green("✓")} Installed ${pc.dim("@typelex/cli")} and ${pc.dim("@typelex/emitter")}\n`);
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resolvePromise();
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} else {
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console.error(pc.red("✗ Failed to install dependencies"));
···
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});
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// Hand off to locally installed version
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console.log("Continuing with local installation...\n");
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// Find where node_modules actually is (could be at workspace root with pnpm)
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let nodeModulesDir = resolve(cwd, "node_modules");
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let searchDir = cwd;
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// Search upward for node_modules with typelex installed
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while (searchDir !== resolve(searchDir, "..")) {
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try {
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const candidatePath = resolve(searchDir, "node_modules/.bin/typelex");
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await access(candidatePath);
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nodeModulesDir = resolve(searchDir, "node_modules");
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break;
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} catch {
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// Not found, try parent
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}
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searchDir = resolve(searchDir, "..");
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}
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return new Promise((resolvePromise, reject) => {
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const localCli = resolve(cwd, "node_modules/.bin/typelex");
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const localCli = resolve(nodeModulesDir, ".bin/typelex");
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const setup = spawn(localCli, ["init", "--setup"], {
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cwd,
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stdio: "inherit",
···
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}
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}
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// Determine the actual lexicons path for display
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const displayLexiconsPath = hasLocalLexicons
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? "./lexicons"
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: lexiconsDir || "./lexicons";
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// Inform about external lexicons
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console.log(`\nLexicons other than ${pc.cyan(namespace)} will be considered external.`);
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console.log(`Put them into the ${pc.cyan(displayLexiconsPath)} folder as JSON.\n`);
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// Create typelex directory
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await mkdir(typelexDir, { recursive: true });
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···
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await access(mainTspPath);
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const content = await readFile(mainTspPath, "utf-8");
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if (content.trim().length > 0) {
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console.log(`✓ ${pc.cyan("typelex/main.tsp")} already exists, skipping`);
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console.log(`${pc.green("✓")} ${pc.cyan("typelex/main.tsp")} already exists, skipping`);
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shouldCreateMain = false;
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}
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} catch {
···
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if (shouldCreateMain) {
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await writeFile(mainTspPath, createMainTemplate(namespacePrefix), "utf-8");
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console.log(`✓ Created ${pc.cyan("typelex/main.tsp")}`);
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console.log(`${pc.green("✓")} Created ${pc.cyan("typelex/main.tsp")}`);
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}
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// Always create/overwrite externals.tsp
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await writeFile(externalsTspPath, EXTERNALS_TSP_TEMPLATE, "utf-8");
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console.log(`✓ Created ${pc.cyan("typelex/externals.tsp")}`);
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console.log(`${pc.green("✓")} Created ${pc.cyan("typelex/externals.tsp")}`);
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// Add build script to package.json
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const packageJsonPath = resolve(cwd, "package.json");
···
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const outFlag = lexiconsDir ? ` --out ${lexiconsDir}` : "";
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packageJson.scripts["build:typelex"] = `typelex compile ${namespace}${outFlag}`;
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await writeFile(packageJsonPath, JSON.stringify(packageJson, null, 2) + "\n", "utf-8");
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console.log(`✓ Added ${pc.cyan("build:typelex")} script to ${pc.cyan("package.json")}`);
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console.log(`${pc.green("✓")} Added ${pc.cyan("build:typelex")} script to ${pc.cyan("package.json")}`);
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if (hasLocalLexicons) {
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console.log(pc.dim(` Using existing lexicons directory: ${pc.cyan("./lexicons")}`));
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} else if (lexiconsDir) {
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console.log(pc.dim(` Using existing lexicons directory: ${pc.cyan(lexiconsDir)}`));
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}
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} else {
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console.log(`✓ ${pc.cyan("build:typelex")} script already exists in ${pc.cyan("package.json")}`);
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console.log(`${pc.green("✓")} ${pc.cyan("build:typelex")} script already exists in ${pc.cyan("package.json")}`);
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}
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} catch (err) {
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console.warn(pc.yellow(`⚠ Could not update ${pc.cyan("package.json")}:`), (err as Error).message);
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}
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console.log(pc.bold("\n✓ Typelex initialized successfully!"));
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console.log(pc.bold("\nNext steps:"));
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console.log(` 1. Edit ${pc.cyan("typelex/main.tsp")} to define your lexicons`);
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console.log(` 2. Run: ${pc.cyan("npm run build:typelex")}`);
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console.log(`\n${pc.green("✓")} ${pc.bold("All set!")}`);
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console.log(`\n${pc.bold("Next steps:")}`);
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console.log(` ${pc.dim("1.")} Edit ${pc.cyan("typelex/main.tsp")} to define your lexicons`);
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console.log(` ${pc.dim("2.")} Keep putting external lexicons into ${pc.cyan(displayLexiconsPath)}`);
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console.log(` ${pc.dim("3.")} Run ${pc.cyan("npm run build:typelex")} to compile to JSON`);
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}