env-diff

Compare .env files and detect missing or extra variables to catch configuration issues before deployment

Features

• Parse .env and .env.example files with support for comments and blank lines
• Detect missing variables (in .env.example but not in .env)
• Detect extra variables (in .env but not in .env.example)
• Detect value mismatches when both files have the same key
• Preserve and display inline comments from env files
• Color-coded diff output (red for missing, yellow for extra, green for matching)
• Exit with non-zero status code when differences are found (CI/CD friendly)
• Support comparing any two env files (not just .env and .env.example)
• Show line numbers for each variable in the source files
• Ignore commented-out variables (lines starting with #)
• Handle quoted values and special characters correctly
• Provide summary statistics (total variables, missing count, extra count)

Installation

# Clone the repository
git clone https://github.com/KurtWeston/env-diff.git
cd env-diff

# Install dependencies
go build

Usage

./main

Built With

• go

Dependencies

• github.com/spf13/cobra
• github.com/fatih/color

Contributing

1. Fork the repository
2. Create your feature branch (git checkout -b feature/amazing-feature)
3. Commit your changes (git commit -m 'Add amazing feature')
4. Push to the branch (git push origin feature/amazing-feature)
5. Open a Pull Request

License

This project is licensed under the MIT License - see the LICENSE file for details.