A little module of functions I find helpful for Go. These are broken up into packages of related tools.

Examples:

// Return the value stored in the DATABASE env or default to localhost
env.GetEnv("DATABASE", "localhost") 

// Read /tmp/example.txt and return a slice containing each line
mySlice := file.FileToSlice("/temp/example.txt")

// Return the XDG config directory (typically ~/.config/app_name)
configDir := file.GetConfigDir("my_app")

// Return the PORT environment variable or default to 8080
port := server.GetServerPort()

Install the module with the following command (experimental URL).

go get github.com/codazoda/lil

Then use one or more of the following package imports.

import (
    "github.com/codazoda/lil/env"
    "github.com/codazoda/lil/file"
    "github.com/codazoda/lil/server"
)

Now you can call the packages and functions below.

Functions for working with environment variables.

GetEnv(key string, fallback string) ()
Return the value stored in the envionment variable named key or fall back to the string specified in fallback if the environment variable is not set.

A collection of functions I use frequently when working with files in Go.

FileToSlice(path string) ([]string, error)
Read a file and return all the lines as a slice of strings.

GetConfigDir(app string) (string, error)
Return the XDG standard config directory for this application.

A collection of functions I use frequently when writing a server in Go.

GetServerPort() string
Read the PORT environment variable and return it or return 8080 if it's not set.