dotenv-validator を CLI 化した dryenv (仮) というツールを作ってみる

$ go mod init github.com/snaka/dryenv
go: creating new go.mod: module github.com/snaka/dryenv

$ go get github.com/duffn/dotenv-validator
go: downloading github.com/duffn/dotenv-validator v0.1.0
go: added github.com/duffn/dotenv-validator v0.1.0

package main

import (
	"fmt"

	validator "github.com/duffn/dotenv-validator"
)

func main() {
	err := validator.Validate()
	fmt.Println(err)
}

VAR1=bob # required
VAR2=lobloaw # required,format=str
VAR3=1.3415 # format=float
VAR4=ABCDEF # format=[A-Z]+
VAR5=notrequired

$ go run main.go

these variables are missing in the envionment (VAR1,VAR2)
these variables have invalid formats (VAR3,VAR4)