gulp: init, bundle src/bin/* scripts to dist/

.gitignore

@@ -1,2 +1,4 @@
 out
 node_modules
+
+dist/

gulpfile.js

@@ -0,0 +1,80 @@
+import { readdir } from 'fs/promises';
+import { spawn } from 'child_process';
+import path from 'path';
+import { fileURLToPath } from 'url';
+import * as gulp from 'gulp';
+import { rm } from 'fs/promises';
+
+// Get the current file's directory
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+
+// Define input and output directories
+const SRC_DIR = path.join(__dirname, 'src');
+const BIN_DIR = path.join(SRC_DIR, 'bin');
+const DIST_DIR = path.join(__dirname, 'dist');
+
+// Function to bundle a single file using esbuild
+async function buildFile(entryFile) {
+    const outputFile = path.join(
+        DIST_DIR,
+        path.basename(entryFile).replace(/\.ts$/, '.mjs')
+    );
+    console.log(`Building: ${entryFile} → ${outputFile}`);
+
+    // Define the esbuild command and arguments
+    const command = 'esbuild';
+    const args = [
+        entryFile,
+        '--bundle',
+        '--platform=node',
+        '--format=esm',
+        '--minify',
+        '--outfile=' + outputFile,
+    ];
+
+    // Execute the esbuild command as a child process
+    return new Promise((resolve, reject) => {
+        const child = spawn(command, args, { stdio: 'inherit' });
+        child.on('close', code => {
+            if (code === 0) {
+                resolve();
+            } else {
+                reject(new Error(`Build failed for ${entryFile} with exit code ${code}`));
+            }
+        });
+    });
+}
+
+// Get all files in the src/bin directory
+async function getEntryFiles() {
+    const files = await readdir(BIN_DIR);
+    return files.map(file => path.join(BIN_DIR, file));
+}
+
+// Build all entry files
+async function buildAll() {
+    const entryFiles = await getEntryFiles();
+    for (const entry of entryFiles) {
+        await buildFile(entry);
+    }
+}
+
+// Clean the output directory
+async function clean() {
+    try {
+        console.log(`Cleaning dist directory: ${DIST_DIR}`);
+        await rm(DIST_DIR, { recursive: true, force: true });
+    } catch (err) {
+        console.error('Error cleaning dist directory:', err.message);
+    }
+}
+
+// Watch for file changes and rebuild
+export function watch() {
+    console.log('Watching for changes...');
+    gulp.watch(SRC_DIR + '/**/*', gulp.series(clean, buildAll));
+}
+
+// Export tasks for Gulp
+export default gulp.series(clean, buildAll); // Default task

package.json

@@ -4,11 +4,13 @@
   "devDependencies": {
     "@types/node": "^20.14.2",
     "@types/yargs": "^17.0.33",
+    "gulp": "^5.0.0",
     "typescript": "^5.5.2"
   },
   "scripts": {
     "watch": "tsc -w",
-    "compile": "tsc"
+    "compile": "tsc",
+    "gulp": "gulp"
   },
   "dependencies": {
     "yargs": "^17.7.2"