easyocr-js/install-deps.js

A Node.js wrapper for EasyOCR

import { execSync } from "child_process";

function runCommand(command, ignoreErrors = false) {
  try {
    console.log(`\n🚀 Running: ${command}`);
    const startTime = performance.now();
    execSync(command, { stdio: "inherit" });
    const endTime = performance.now();
    console.log(`✅ Completed in ${((endTime - startTime) / 1000).toFixed(2)}s`);
    return true;
  } catch (error) {
    if (ignoreErrors) {
      console.warn(`⚠️ Warning: Command failed (ignored): ${command}`);
      return false;
    } else {
      console.error(`❌ Error executing command: ${command}`);
      console.error(error.message);
      process.exit(1);
    }
  }
}

function getPythonCommand() {
  const pythonVariants = ["python3", "python", "py"];
  for (const cmd of pythonVariants) {
    try {
      const versionOutput = execSync(`${cmd} --version`, {
        encoding: "utf-8",
        stdio: "pipe",
      });
      if (versionOutput.includes("Python 3")) {
        console.log(`🐍 Using Python command: ${cmd} (${versionOutput.trim()})`);
        return cmd;
      }
    } catch {
      // ignore and try next
    }
  }
  console.error(
    "❌ Python 3.x is not installed or not found in PATH. Please install Python 3.x."
  );
  process.exit(1);
}

async function main() {
  const pythonCmd = getPythonCommand();

  // Upgrade pip
  runCommand(`${pythonCmd} -m pip install --upgrade pip`);

  // Install PyTorch CPU version (required by EasyOCR)
  runCommand(
    `${pythonCmd} -m pip install torch torchvision torchaudio --index-url https://download.pytorch.org/whl/cpu`
  );

  // Install EasyOCR
  runCommand(`${pythonCmd} -m pip install easyocr`);

  // Install OpenCV headless (for image processing)
  runCommand(`${pythonCmd} -m pip install opencv-python-headless`);

  // Install numpy (dependency)
  runCommand(`${pythonCmd} -m pip install numpy`);

  console.log("\n🎉 All dependencies installed successfully!");
}

main();