~sircmpwn/aerc

ref: 207ecc39cd9b1e85f482be23240fc5a90d775fd7 aerc/commands/cd.go -rw-r--r-- 729 bytes
207ecc39Drew DeVault Fix #116 1 year, 3 months ago
                                                                                
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package commands

import (
	"errors"
	"os"

	"git.sr.ht/~sircmpwn/aerc/widgets"
	"github.com/mitchellh/go-homedir"
)

var (
	previousDir string
)

func init() {
	register("cd", ChangeDirectory)
}

func ChangeDirectory(aerc *widgets.Aerc, args []string) error {
	if len(args) != 2 {
		return errors.New("Usage: cd <directory>")
	}
	cwd, err := os.Getwd()
	if err != nil {
		return err
	}
	var target string
	if args[1] == "-" {
		if previousDir == "" {
			return errors.New("No previous folder to return to")
		} else {
			target = previousDir
		}
	} else {
		target = args[1]
	}
	target, err = homedir.Expand(target)
	if err != nil {
		return err
	}
	if err := os.Chdir(target); err == nil {
		previousDir = cwd
	}
	return err
}