scripts/build.js

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

const fs = require('fs');
const path = require('path');
const { execSync } = require('child_process');

/**
 * Install dependencies before build if needed.
 * If no `node_modules` directory, run `npm install`
 *
 * @param {string} dirName directory name under ./custom-series/
 */
function beforeBuild(dirName) {
  const seriesPath = path.join(__dirname, '../custom-series', dirName);
  const nodeModulesPath = path.join(seriesPath, 'node_modules');
  if (!fs.existsSync(nodeModulesPath)) {
    console.log(`Installing dependencies for custom series ${dirName}...`);
    execSync(`npm install`, { cwd: seriesPath });
  }
}

/**
 * Build one custom series
 *
 * @param {string} dirName directory name under ./custom-series/
 */
function buildCustomSeries(dirName) {
  const seriesPath = path.join(__dirname, '../custom-series', dirName);
  if (fs.statSync(seriesPath).isDirectory() === false) {
    return;
  }
  if (!fs.existsSync(seriesPath)) {
    console.error(`Custom series ${dirName} does not exist`);
    return;
  }

  beforeBuild(dirName);

  console.log(`Building custom series ${dirName}...`);

  compileTypeScript(seriesPath, dirName);
  bundleWithRollup(seriesPath, dirName);
  minifyWithTerser(seriesPath, dirName);
}

function compileTypeScript(seriesPath, dirName) {
  const tscPath = path.join(__dirname, '../node_modules/.bin/tsc');
  // Remove dir of lib
  if (fs.existsSync(path.join(seriesPath, 'lib'))) {
    fs.rmSync(path.join(seriesPath, 'lib'), { recursive: true, force: true });
  }

  try {
    execSync(
      `${tscPath} ${seriesPath}/src/index.ts \
        --outDir ${seriesPath}/lib \
        --target ES5 \
        --noImplicitAny \
        --noImplicitThis \
        --strictBindCallApply \
        --removeComments true \
        --sourceMap \
        --moduleResolution node \
        --esModuleInterop \
        --declaration \
        --declarationMap false \
        --importHelpers \
        --pretty \
        --ignoreDeprecations 5.0 \
        --module es2015`
    );
  } catch (e) {
    // There may be some error compiling ECharts, which can be ignored
    // as long as `lib/index.js` exists
  }
  if (!fs.existsSync(path.join(seriesPath, 'lib/index.js'))) {
    console.error(`Error compiling TypeScript for custom series ${dirName}:`);
    console.error(e);
    process.exit(1);
  }
  console.log(`Compiled TypeScript for custom series ${dirName}`);
}

function bundleWithRollup(seriesPath, dirName) {
  const rollupPath = path.join(__dirname, '../node_modules/.bin/rollup');
  const configPath = path.join(seriesPath, 'rollup.config.js');
  const distPath = path.join(seriesPath, 'dist');

  // Create dist directory if it doesn't exist
  if (!fs.existsSync(distPath)) {
    fs.mkdirSync(distPath, { recursive: true });
  }

  try {
    const result = execSync(
      `${rollupPath} -c ${configPath} \
        --input ${seriesPath}/lib/index.js \
        --file ${seriesPath}/dist/index.js \
        --name ${dirName}CustomSeriesInstaller`,
      { encoding: 'utf8', stdio: 'pipe' }
    );

    console.log(`Rollup bundling completed for ${dirName}`);
    console.log(result);

    // Check if the output file was created
    if (!fs.existsSync(path.join(seriesPath, 'dist', 'index.js'))) {
      console.error(`Error: Output file not created for ${dirName}`);
    }
  } catch (e) {
    console.error(`Error bundling custom series ${dirName}:`);
    console.error(e.message);
    if (e.stdout) console.error('Rollup stdout:', e.stdout.toString());
    if (e.stderr) console.error('Rollup stderr:', e.stderr.toString());
  }
}

function minifyWithTerser(seriesPath, dirName) {
  const terserPath = path.join(__dirname, '../node_modules/.bin/terser');
  try {
    execSync(
      `${terserPath} ${seriesPath}/dist/index.js \
          --compress \
          --mangle \
          --ecma 3 \
          --comments all \
          --source-map \
          --output ${seriesPath}/dist/index.min.js`
    );
    console.log(`Minified custom series ${dirName} using Terser`);
  } catch (e) {
    console.error(`Error minifying custom series ${dirName}:`);
    console.error(e.message);
  }
}

/**
 * `npm run build` to build all
 * `npm run build <series-name>` to build one custom series
 */
function build() {
  const args = process.argv.slice(2);
  if (args.length === 0) {
    // Build all custom series
    fs.readdirSync(path.join(__dirname, '../custom-series')).forEach(
      buildCustomSeries
    );
  } else {
    // Build custom series from args
    args.forEach(buildCustomSeries);
  }
  console.log('Build successfully.');
}

build();