mermaid/.esbuild/build.ts

import { build } from 'esbuild';
import { mkdir, writeFile } from 'node:fs/promises';
import { getBuildConfig } from './util.js';
import { packageOptions } from '../.build/common.js';

const shouldVisualize = process.argv.includes('--visualize');

const buildPackage = async (entryName: keyof typeof packageOptions) => {
  // package.mjs
  await build(getBuildConfig({ entryName, minify: false }));
  // package.min.mjs
  const { metafile } = await build(
    getBuildConfig({ entryName, minify: true, metafile: shouldVisualize })
  );
  if (metafile) {
    // Upload metafile into https://esbuild.github.io/analyze/
    await writeFile(`stats/meta-${entryName}.json`, JSON.stringify(metafile));
  }
  // package.core.mjs
  await build(getBuildConfig({ entryName, minify: false, core: true }));
  if (entryName === 'mermaid') {
    // mermaid.js
    await build(getBuildConfig({ entryName, minify: false, format: 'iife' }));
    // mermaid.min.js
    await build(getBuildConfig({ entryName, minify: true, format: 'iife' }));
    // mermaid.tiny.min.js
    const { metafile } = await build(
      getBuildConfig({
        entryName,
        minify: true,
        includeLargeDiagrams: false,
        metafile: shouldVisualize,
        format: 'iife',
      })
    );
    if (metafile) {
      await writeFile(`stats/meta-${entryName}-tiny.json`, JSON.stringify(metafile));
    }
  }
};

const handler = (e) => {
  console.error(e);
  process.exit(1);
};

const main = async () => {
  await mkdir('stats').catch(() => {});
  const packageNames = Object.keys(packageOptions) as (keyof typeof packageOptions)[];
  for (const pkg of packageNames) {
    await buildPackage(pkg).catch(handler);
  }
};

void main();