gitarsenal-cli/lib/dependencies.js

CLI tool for creating Modal sandboxes with GitHub repositories

const { promisify } = require('util');
const { exec } = require('child_process');
const which = require('which');
const chalk = require('chalk');

const execAsync = promisify(exec);

/**
 * Check if a command is available in the system
 * @param {string} command - Command to check
 * @returns {Promise<boolean>} - True if command exists
 */
async function commandExists(command) {
  try {
    await which(command);
    return true;
  } catch (error) {
    return false;
  }
}

/**
 * Check Python version
 * @returns {Promise<{exists: boolean, version: string|null}>}
 */
async function checkPython() {
  try {
    const { stdout } = await execAsync('python --version');
    const version = stdout.trim().split(' ')[1];
    return { exists: true, version };
  } catch (error) {
    try {
      const { stdout } = await execAsync('python3 --version');
      const version = stdout.trim().split(' ')[1];
      return { exists: true, version };
    } catch (error) {
      return { exists: false, version: null };
    }
  }
}

/**
 * Check if Modal is installed
 * @returns {Promise<boolean>}
 */
async function checkModal() {
  try {
    await execAsync('modal --version');
    return true;
  } catch (error) {
    return false;
  }
}

/**
 * Check if Git is installed
 * @returns {Promise<boolean>}
 */
async function checkGit() {
  try {
    await execAsync('git --version');
    return true;
  } catch (error) {
    return false;
  }
}

async function checkGitingest() {
  try {
    await execAsync('gitingest --help');
    return true;
  } catch (error) {
    return false;
  }
}

/**
 * Check all required dependencies
 * @returns {Promise<boolean>} - True if all dependencies are met
 */
async function checkDependencies() {
  const pythonCheck = await checkPython();
  const modalExists = await checkModal();
  const gitExists = await checkGit();
  const gitingestExists = await checkGitingest();
  
  let allDependenciesMet = true;
  
  console.log('\n--- Dependency Check ---');
  
  if (pythonCheck.exists) {
    console.log(`${chalk.green('✓')} Python ${pythonCheck.version} found`);
  } else {
    console.log(`${chalk.red('✗')} Python not found. Please install Python 3.8 or newer.`);
    allDependenciesMet = false;
  }
  
  if (modalExists) {
    console.log(`${chalk.green('✓')} Modal CLI found`);
  } else {
    console.log(`${chalk.red('✗')} Modal CLI not found. Please install it with: pip install modal`);
    allDependenciesMet = false;
  }

  if (gitingestExists) {
    console.log(`${chalk.green('✓')} Gitingest CLI found`);
  } else {
    console.log(`${chalk.red('✗')} Gitingest CLI not found. Please install it with: pip install gitingest`);
    allDependenciesMet = false;
  }
  
  if (gitExists) {
    console.log(`${chalk.green('✓')} Git found`);
  } else {
    console.log(`${chalk.red('✗')} Git not found. Please install Git.`);
    allDependenciesMet = false;
  }
  
  console.log('------------------------\n');
  
  return allDependenciesMet;
}

module.exports = {
  checkDependencies,
  commandExists,
  checkPython,
  checkModal,
  checkGit
};