@nicolasmirson/plan-mode-claude/scripts/postinstall.cjs

Structured planning workflow for AI assistants with MCP integration

#!/usr/bin/env node

const fs = require('fs');
const path = require('path');
const os = require('os');

// Get the user's home directory
const homeDir = os.homedir();
const globalCursorRulesDir = path.join(homeDir, '.cursor', 'rules');
const globalRuleFilePath = path.join(globalCursorRulesDir, 'plan-mode-claude.mdc');

// Also create in the directory where npm was invoked (so user can review)
const npmInvokedDir = process.env.INIT_CWD || process.cwd();
const localCursorRulesDir = path.join(npmInvokedDir, '.cursor', 'rules');
const localRuleFilePath = path.join(localCursorRulesDir, 'plan-mode-claude.mdc');

// Read the template file
const templatePath = path.join(__dirname, '..', 'templates', 'cursor-rules.mdc');

function createCursorRules() {
  try {
    // Check if template exists
    if (!fs.existsSync(templatePath)) {
      console.log('⚠️  Template file not found, skipping Cursor rules creation');
      return;
    }

    const templateContent = fs.readFileSync(templatePath, 'utf8');
    let createdFiles = [];

    // Create global rules (home directory)
    if (!fs.existsSync(globalCursorRulesDir)) {
      fs.mkdirSync(globalCursorRulesDir, { recursive: true });
      console.log('📁 Created global .cursor/rules directory');
    }

    if (!fs.existsSync(globalRuleFilePath)) {
      fs.writeFileSync(globalRuleFilePath, templateContent);
      createdFiles.push('~/.cursor/rules/plan-mode-claude.mdc');
      console.log('✅ Created global Cursor rules file: ~/.cursor/rules/plan-mode-claude.mdc');
    } else {
      console.log('📝 Global Plan Mode Cursor rules already exist');
    }

    // Create local rules (current directory)
    if (!fs.existsSync(localCursorRulesDir)) {
      fs.mkdirSync(localCursorRulesDir, { recursive: true });
      console.log('📁 Created local .cursor/rules directory');
    }

    if (!fs.existsSync(localRuleFilePath)) {
      fs.writeFileSync(localRuleFilePath, templateContent);
      createdFiles.push('./.cursor/rules/plan-mode-claude.mdc');
      console.log('✅ Created local Cursor rules file: ./.cursor/rules/plan-mode-claude.mdc');
    } else {
      console.log('📝 Local Plan Mode Cursor rules already exist');
    }

    if (createdFiles.length > 0) {
      console.log('🔄 Restart Cursor to load the new rules');
    }
    
  } catch (error) {
    console.log('⚠️  Could not create Cursor rules file:', error.message);
    console.log('   You can manually copy the rules from the templates/ directory');
  }
}

// Always run the setup for global installations
// We can detect if it's global by checking if we're in a global node_modules
const isGlobal = __dirname.includes('/lib/node_modules/') || __dirname.includes('/global/node_modules/');

console.log('🚀 Setting up Plan Mode Claude...');
console.log(`Installation path: ${__dirname}`);
console.log(`Global installation: ${isGlobal}`);
console.log(`Local rules will be created in: ${npmInvokedDir}`);
createCursorRules();