.env file to fish

README.md

.env to fish shell

install

• go build -o readenv cmd/readenv/main.go
• mv readenv /usr/local/bin/readenv

Usage

eval (readenv .env)

main.go

package main

import (
	"bufio"
	"fmt"
	"os"
	"strings"
)

func main() {
	path := os.Args[1:]
	if len(path) == 0 {
		os.Stderr.Write([]byte("file path is a required arg\n"))
		os.Exit(1)
	}
	
	if len(path) > 1 {
		os.Stderr.Write([]byte("only 1 path is allowed\n"))
		os.Exit(1)
	}
	
	fp, err := os.Open(path[0])
	if err != nil {
		os.Stderr.Write([]byte(fmt.Sprintf("unable to open file %s: %s\n", path[0], err)))
		os.Exit(1)
	}
	s := bufio.NewScanner(fp)
	for s.Scan() {
		t := strings.TrimSpace(s.Text())
		if len(t) == 0 || t[0] == '#' {
			continue
		}
		
		tokens := strings.Split(t, "=")
		if len(tokens) != 2 {
			os.Stdout.Write([]byte(fmt.Sprintf("# invalid token: %s;\n", t)))
			continue
		}
		os.Stdout.Write([]byte(fmt.Sprintf("set -x %s %s;\n", tokens[0], tokens[1])))
	}
}