init: pristine aerc 0.20.0 source

commands/cd.go

@@ -0,0 +1,55 @@
+package commands
+
+import (
+	"errors"
+	"os"
+
+	"git.sr.ht/~rjarry/aerc/app"
+	"git.sr.ht/~rjarry/aerc/lib/xdg"
+)
+
+var previousDir string
+
+type ChangeDirectory struct {
+	Target string `opt:"directory" default:"~" complete:"CompleteTarget" desc:"Target directory."`
+}
+
+func init() {
+	Register(ChangeDirectory{})
+}
+
+func (ChangeDirectory) Description() string {
+	return "Change aerc's current working directory."
+}
+
+func (ChangeDirectory) Context() CommandContext {
+	return GLOBAL
+}
+
+func (ChangeDirectory) Aliases() []string {
+	return []string{"cd"}
+}
+
+func (*ChangeDirectory) CompleteTarget(arg string) []string {
+	return CompletePath(arg, true)
+}
+
+func (cd ChangeDirectory) Execute(args []string) error {
+	cwd, err := os.Getwd()
+	if err != nil {
+		return err
+	}
+	if cd.Target == "-" {
+		if previousDir == "" {
+			return errors.New("No previous folder to return to")
+		} else {
+			cd.Target = previousDir
+		}
+	}
+	target := xdg.ExpandHome(cd.Target)
+	if err := os.Chdir(target); err == nil {
+		previousDir = cwd
+		app.UpdateStatus()
+	}
+	return err
+}