Go Embed Generator

Summary

goembed generates a file that you may include in your project to include a file's content as code, embedded within the binary.

Installation

You can use go tool to install it to you Go home ($HOME/go/bin) as goembed binary.

go install github.com/rhaseven7h/goembed@latest

Usage

You must specify the package name for the generated file, the output path and/or file name, the variable name for the generated data, and finally, the input file.

goembed \ 
   -package mypackagename \
   -output embeddedfiles/dataone.go \
   -variable MyData \
   my_input_file.txt

You may specify - for both input and out files, which will use standard input and standard output respectively.

Output

An example output for the above command would be the following:

package data

import (
	"encoding/base64"
)

var InitData []byte

func init() {
	InitData, _ = base64.StdEncoding.DecodeString(
		"" +
			"ZnVuY3Rpb24gZ3ZtKCkgewogIE9VVFBVVD0kKHNndm0gIiRAIikKICBFWElUX0NP" +
			"REU9JD8KICBpZiBbICRFWElUX0NPREUgLW5lIDEgXTsgdGhlbgogICAgZWNobyAk" +
			"T1VUUFVUCiAgICByZXR1cm4KICBmaQogIGV2YWwgIiR7T1VUUFVUfSIKfQo=" +
			"",
	)
}

With this, you may import the data package, and use the data.InitData variable which will contain the original input contents in a []byte slice.

Go Generate

You may use this tool with Go Generate functionality by adding a line as follows to your source code:

//go:generate goembed -package pkgname -output data/input.go -variable MyData my_input_file.txt

Copyright

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.