runMinimizeCommand() — react Function Reference

Source Code

compiler/packages/snap/src/runner.ts lines 158–209

async function runMinimizeCommand(opts: MinimizeOptions): Promise<void> {
  // Resolve the input path
  const inputPath = path.isAbsolute(opts.path)
    ? opts.path
    : path.resolve(PROJECT_ROOT, opts.path);

  // Check if file exists
  if (!fs.existsSync(inputPath)) {
    console.error(`Error: File not found: ${inputPath}`);
    process.exit(1);
  }

  // Read the input file
  const input = fs.readFileSync(inputPath, 'utf-8');
  const filename = path.basename(inputPath);
  const firstLine = input.substring(0, input.indexOf('\n'));
  const language = parseLanguage(firstLine);
  const sourceType = parseSourceType(firstLine);

  console.log(`Minimizing: ${inputPath}`);

  const originalLines = input.split('\n').length;

  // Run the minimization
  const result = minimize(input, filename, language, sourceType);

  if (result.kind === 'success') {
    console.log('Could not minimize: the input compiles successfully.');
    process.exit(0);
  }

  if (result.kind === 'minimal') {
    console.log(
      'Could not minimize: the input fails but is already minimal and cannot be reduced further.',
    );
    process.exit(0);
  }

  // Output the minimized code
  console.log('--- Minimized Code ---');
  console.log(result.source);

  const minimizedLines = result.source.split('\n').length;
  console.log(
    `\nReduced from ${originalLines} lines to ${minimizedLines} lines`,
  );

  if (opts.update) {
    fs.writeFileSync(inputPath, result.source, 'utf-8');
    console.log(`\nUpdated ${inputPath} with minimized code.`);
  }
}