env-ai-gen

CLI tool that scans your project's source code and generates a .env.example file with all detected environment variables, descriptions, and sensible defaults.

Supported Languages

• Node.js — process.env.VAR_NAME
• Python — os.environ["VAR"], os.environ.get("VAR"), os.getenv("VAR")
• Rust — env::var("VAR")
• Go — os.Getenv("VAR")
• Ruby — ENV["VAR"], ENV.fetch("VAR")

Install

npm install -g env-ai-gen

Usage

# Scan current directory
env-ai-gen

# Scan a specific directory
env-ai-gen ./my-project

# Output as JSON
env-ai-gen --format json --output env.json

# Sort alphabetically and merge with existing file
env-ai-gen --sort --merge

# Custom output path
env-ai-gen -o .env.template

Options

| Flag | Description | Default | |------|-------------|---------| | [dir] | Directory to scan | . | | -o, --output <path> | Output file path | .env.example | | -f, --format <fmt> | Format: dotenv, json, yaml | dotenv | | --merge | Merge with existing file | false | | --sort | Sort variables alphabetically | false |

Features

• Auto-categorizes variables (Database, Auth, Server, External APIs, Email, Storage, Cache)
• Adds descriptions based on common naming patterns
• Sets sensible defaults (e.g., PORT=3000, NODE_ENV=development)
• Marks sensitive variables (secrets, passwords, API keys) with empty values
• Tracks source files for each variable
• Skips node_modules, .git, dist, build, __pycache__, target, vendor

License

MIT