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package commands
import (
"errors"
"os"
"strings"
"git.sr.ht/~sircmpwn/aerc/widgets"
"github.com/mitchellh/go-homedir"
)
var (
previousDir string
)
type ChangeDirectory struct{}
func init() {
register(ChangeDirectory{})
}
func (_ ChangeDirectory) Aliases() []string {
return []string{"cd"}
}
func (_ ChangeDirectory) Complete(aerc *widgets.Aerc, args []string) []string {
path := ""
if len(args) >= 1 {
path = args[0]
}
completions := CompletePath(path)
var dirs []string
for _, c := range completions {
// filter out non-directories
if strings.HasSuffix(c, "/") {
dirs = append(dirs, c)
}
}
return dirs
}
func (_ ChangeDirectory) Execute(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
}
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