Migrate all modules to their own subfolder

Handles #375

modules/cmdrunner/widget.go

@@ -0,0 +1,55 @@
+package cmdrunner
+
+import (
+	"fmt"
+	"os/exec"
+	"strings"
+
+	"github.com/rivo/tview"
+	"github.com/wtfutil/wtf/wtf"
+)
+
+type Widget struct {
+	wtf.TextWidget
+
+	args   []string
+	cmd    string
+	result string
+}
+
+func NewWidget(app *tview.Application) *Widget {
+	widget := Widget{
+		TextWidget: wtf.NewTextWidget(app, "CmdRunner", "cmdrunner", false),
+
+		args: wtf.ToStrs(wtf.Config.UList("wtf.mods.cmdrunner.args")),
+		cmd:  wtf.Config.UString("wtf.mods.cmdrunner.cmd"),
+	}
+
+	widget.View.SetWrap(true)
+
+	return &widget
+}
+
+func (widget *Widget) Refresh() {
+	widget.execute()
+
+	title := tview.TranslateANSI(wtf.Config.UString("wtf.mods.cmdrunner.title", widget.String()))
+	widget.View.SetTitle(title)
+
+	widget.View.SetText(widget.result)
+}
+
+func (widget *Widget) String() string {
+	args := strings.Join(widget.args, " ")
+
+	if args != "" {
+		return fmt.Sprintf(" %s %s ", widget.cmd, args)
+	}
+
+	return fmt.Sprintf(" %s ", widget.cmd)
+}
+
+func (widget *Widget) execute() {
+	cmd := exec.Command(widget.cmd, widget.args...)
+	widget.result = tview.TranslateANSI(wtf.ExecuteCommand(cmd))
+}