function runCommand()

in jazelle/rules/execute-command.js [49:96]

• 46 lines of code
• 9 McCabe index (conditional complexity)

function runCommand(command, args = []) {
  if (command) {
    const nodeDir = dirname(node);
    const params = args.map(arg => `'${arg}'`).join(' ');
    // prioritize hermetic Node version over system version
    const binPath = `:${root}/node_modules/.bin`;
    if (process.env.NODE_PRESERVE_SYMLINKS) {
      const bins = readdir('node_modules/.bin');
      const items = command.split(' ');
      let matchingBin = null;
      for (let i = 0; i < items.length; i++) {
        const item = items[i];
        if (bins.includes(item)) {
          if (
            read(join('node_modules/.bin', item), 'utf-8')
              .split('\n')[0]
              .trim()
              .endsWith('node')
          ) {
            matchingBin = item;
            break;
          }
        }
      }
      if (matchingBin) {
        const realBin = realpath(join('node_modules/.bin', matchingBin));
        let pathToUse = join(
          process.cwd(),
          'node_modules',
          realBin.split('node_modules').pop()
        );

        if (exists(pathToUse)) {
          command = command.replace(
            matchingBin,
            `node --preserve-symlinks-main ${pathToUse}`
          );
        }
      }
    }
    const script = `export PATH=${nodeDir}${binPath}:$PATH; ${command} ${params}`;
    try {
      exec(script, {cwd: main, env: process.env, stdio: 'inherit'});
    } catch (e) {
      process.exit(1);
    }
  }
}