esbuild.mjs

import esbuild from 'esbuild';
import { readFileSync } from 'fs';

const production = process.argv.includes('--production');
const watch = process.argv.includes('--watch');

function loadEnvDefines() {
  const env = {};
  try {
    const content = readFileSync('.env', 'utf-8');
    for (const line of content.split('\n')) {
      const trimmed = line.trim();
      if (!trimmed || trimmed.startsWith('#')) { continue; }
      const eqIdx = trimmed.indexOf('=');
      if (eqIdx === -1) { continue; }
      env[trimmed.slice(0, eqIdx).trim()] = trimmed.slice(eqIdx + 1).trim();
    }
  } catch {
    // .env not present; fall back to process.env
  }
  return {
    'process.env.POSTHOG_API_KEY': JSON.stringify(env.POSTHOG_API_KEY ?? process.env.POSTHOG_API_KEY ?? ''),
    'process.env.POSTHOG_HOST': JSON.stringify(env.POSTHOG_HOST ?? process.env.POSTHOG_HOST ?? 'https://eu.i.posthog.com'),
  };
}

/**
 * @type {import('esbuild').Plugin}
 */
const esbuildProblemMatcherPlugin = {
  name: 'esbuild-problem-matcher',

  setup(build) {
    build.onStart(() => {
      console.log('[watch] build started');
    });
    build.onEnd((result) => {
      result.errors.forEach(({ text, location }) => {
        console.error(`✘ [ERROR] ${text}`);
        console.error(`    ${location.file}:${location.line}:${location.column}:`);
      });
      console.log('[watch] build finished');
    });
  },
};

async function main() {
  const ctx = await esbuild.context({
    entryPoints: ['src/extension.ts'],
    bundle: true,
    format: 'cjs',
    minify: production,
    sourcemap: !production,
    sourcesContent: false,
    platform: 'node',
    outfile: 'dist/extension.js',
    external: ['vscode'],
    define: loadEnvDefines(),
    logLevel: 'silent',
    plugins: [
      /* add to the end of plugins array */
      esbuildProblemMatcherPlugin,
    ],
  });
  
  if (watch) {
    await ctx.watch();
  } else {
    await ctx.rebuild();
    await ctx.dispose();
  }
}

main().catch(e => {
  console.error(e);
  process.exit(1);
});