idraw/scripts/build-module.ts

import ts from 'typescript';
import path from 'path';
import glob from 'glob';
import { packages } from './config';
import { joinPackagePath, getTsConfig } from './util/project';
import { removeFullDir } from './util/file';
import type { CompilerOptions } from 'typescript';

build();

async function build() {
  for (let i = 0; i < packages.length; i++) {
    const pkg = packages[i];
    const { dirName } = pkg;
    const pkgDir = path.resolve(`packages/${dirName}`);
    console.log(`Start to build ESM for ${dirName}`);
    console.log(`Remove packages/${dirName}/dist/`);
    removeFullDir(`${pkgDir}/dist`);
    buildPackage(dirName);
    console.log(`Build ESM of ${dirName} successfully!`);
  }
}

function buildPackage(dirName: string) {
  const pattern = '**/*.ts';
  const cwd = joinPackagePath(dirName, 'src');
  const files = glob.sync(pattern, { cwd });

  const targetFiles = files.map((file) => {
    return joinPackagePath(dirName, 'src', file);
  });

  // build ts -> esm
  {
    // const tsConfig = getTsConfig();
    // const compilerOptions = tsConfig.compilerOptions;
    const compilerOptions: CompilerOptions = {
      noUnusedLocals: true,

      declaration: true,
      sourceMap: false,
      target: ts.ScriptTarget.ES2015,
      moduleResolution: ts.ModuleResolutionKind.NodeJs,
      allowJs: false,
      strict: true,
      experimentalDecorators: true,
      resolveJsonModule: true,
      esModuleInterop: true,
      removeComments: true,
      // lib: ['ES2016', 'dom'],
      outDir: joinPackagePath(dirName, 'dist', 'esm'),
      rootDir: joinPackagePath(dirName, 'src'),
      skipLibCheck: true
    };
    const program = ts.createProgram(targetFiles, compilerOptions);

    const diagnostics = ts.getPreEmitDiagnostics(program);
    if (diagnostics.length) {
      // console.error(diagnostics);
      for (const diagnostic of diagnostics) {
        console.log(JSON.stringify(diagnostic.messageText, null, 2));
      }
      throw Error('TS build error!');
    }

    program.emit();
  }
}