Go env

A lightweight Go library for loading and managing environment variables from .env files.

Features

• Load environment variables from .env files
• Retrieve specific environment variables from .env files
• Support for comments and empty lines
• Support for quoted values (both single and double quotes)
• Simple and easy to use API

Installation

go get github.com/cesp99/go-env

Usage

Loading Environment Variables

package main

import (
    "fmt"
    "github.com/cesp99/go-env"
)

func main() {
    // Load all environment variables from .env file
    err := env.LoadEnv(".env")
    if err != nil {
        fmt.Printf("Error loading .env file: %v\n", err)
        return
    }
}

Getting Specific Environment Variables

package main

import (
    "fmt"
    "github.com/cesp99/go-env"
)

func main() {
    // Get a specific environment variable from .env file
    value, err := env.GetEnv("DB_HOST", ".env")
    if err != nil {
        fmt.Printf("Error reading environment variable: %v\n", err)
        return
    }
    fmt.Printf("DB_HOST: %s\n", value)
}

Example .env File

# Database settings
DB_HOST=localhost
DB_PORT=5432

# Application settings
APP_NAME="My Application"
API_KEY='secret-key'

Features

Comments and Empty Lines

• Lines starting with # are treated as comments
• Empty lines are ignored

Quoted Values

• Supports both single and double quoted values
• Quotes are automatically trimmed from the value

Error Handling

• Returns appropriate errors for file operations
• Skips malformed lines without failing

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

License

This project is licensed under the GPL 3.0 License - see the LICENSE file for details.