esbuild.config.js•2.11 kB
import { build } from 'esbuild';
import { glob } from 'glob';
import { readFileSync } from 'fs';
import path from 'path';
const pkg = JSON.parse(readFileSync('./package.json', 'utf8'));
// External dependencies that shouldn't be bundled
const external = [
...Object.keys(pkg.dependencies || {}),
...Object.keys(pkg.peerDependencies || {}),
];
// Common build options
const commonOptions = {
platform: 'node',
target: 'node18',
format: 'esm',
logLevel: 'info',
bundle: false, // Don't bundle dependencies
sourcemap: true,
};
// Build function
async function buildProject(production = false) {
console.log(`Building ${production ? 'production' : 'development'} version...`);
// Get all TypeScript files
const entryPoints = await glob('src/**/*.ts', {
ignore: ['**/*.test.ts', '**/test/**']
});
const options = {
...commonOptions,
entryPoints,
outdir: 'dist',
outbase: 'src',
};
if (production) {
Object.assign(options, {
minify: true,
minifyWhitespace: true,
minifySyntax: true,
minifyIdentifiers: true,
treeShaking: true,
drop: ['debugger'],
legalComments: 'none',
});
} else {
Object.assign(options, {
minify: false,
keepNames: true,
});
}
try {
const result = await build(options);
console.log('Build complete!');
// Show file sizes in production
if (production && result.metafile) {
const outputs = Object.entries(result.metafile.outputs)
.filter(([file]) => file.endsWith('.js'))
.sort((a, b) => b[1].bytes - a[1].bytes);
console.log('\nOutput files:');
outputs.forEach(([file, info]) => {
const size = (info.bytes / 1024).toFixed(2);
console.log(` ${path.basename(file)}: ${size} KB`);
});
}
} catch (error) {
console.error('Build failed:', error);
process.exit(1);
}
}
// Parse command line arguments
const args = process.argv.slice(2);
const isProduction = args.includes('--prod') || args.includes('--production');
// Run build
buildProject(isProduction);