cmd_apply_dump.go

package main

import (
	"fmt"
	"io/ioutil"
)

// `direnv apply_dump FILE`
var CmdApplyDump = &Cmd{
	Name:    "apply_dump",
	Desc:    "Accepts a filename containing `direnv dump` output and generates a series of bash export statements to apply the given env",
	Args:    []string{"FILE"},
	Private: true,
	Fn: func(env Env, args []string) (err error) {
		if len(args) < 2 {
			return fmt.Errorf("Not enough arguments")
		}

		if len(args) > 2 {
			return fmt.Errorf("Too many arguments")
		}
		filename := args[1]

		dumped, err := ioutil.ReadFile(filename)
		if err != nil {
			return err
		}

		dumpedEnv, err := LoadEnv(string(dumped))
		if err != nil {
			return err
		}

		diff := env.Diff(dumpedEnv)

		exports := diff.ToShell(BASH)

		_, err = fmt.Println(exports)
		if err != nil {
			return err
		}

		return
	},
}