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) < 1 || len(args) > 2 { return errors.New("Usage: cd [directory]") } cwd, err := os.Getwd() if err != nil { return err } var target string if len(args) == 1 { target = "~" } else 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 }