Add conversion functions and move other defaults to cmd/scpt

cmd/scpt/funcs.go

@@ -0,0 +1,83 @@
+/*
+	Copyright (c) 2021 Arsen Musayelyan
+
+	Permission is hereby granted, free of charge, to any person obtaining a copy
+	of this software and associated documentation files (the "Software"), to deal
+	in the Software without restriction, including without limitation the rights
+	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+	copies of the Software, and to permit persons to whom the Software is
+	furnished to do so, subject to the following conditions:
+
+	The above copyright notice and this permission notice shall be included in all
+	copies or substantial portions of the Software.
+*/
+
+package main
+
+import (
+	"errors"
+	"fmt"
+	"github.com/gen2brain/dlgs"
+	"os"
+	"os/exec"
+)
+
+// Default function to display a dialog
+func displayDialog(args map[string]interface{}) (interface{}, error) {
+	// Get title
+	title, ok := args["title"]
+	if !ok {
+		return nil, errors.New("title not provided")
+	}
+	// Get unnamed argument as text
+	text, ok := args[""]
+	if !ok {
+		return nil, errors.New("text not provided")
+	}
+	// Display correct dialog based on given type
+	switch args["type"] {
+	case "yesno":
+		// Display yes or no dialog, returning bool based on user input
+		return dlgs.Question(fmt.Sprint(title), fmt.Sprint(text), true)
+	case "info":
+		// Display info dialog, returning bool based on success
+		return dlgs.Info(fmt.Sprint(title), fmt.Sprint(text))
+	case "error":
+		// Display error dialog, returning bool based on success
+		return dlgs.Error(fmt.Sprint(title), fmt.Sprint(text))
+	case "entry":
+		// Check if default text given
+		defaultText, ok := args["default"]
+		if !ok {
+			// Set to empty if not given
+			defaultText = ""
+		}
+		// Display entry dialog
+		input, _, err := dlgs.Entry(fmt.Sprint(title), fmt.Sprint(text), fmt.Sprint(defaultText))
+		// Return user input
+		return input, err
+	default:
+		// If type unknown, return error
+		return nil, fmt.Errorf("unknown dialog type: %v", args["type"])
+	}
+}
+
+// Default function to run a shell script using `sh -c`
+func doShellScript(args map[string]interface{}) (interface{}, error) {
+	// Get unnamed argument and assert its type as string
+	script, ok := args[""].(string)
+	// If assertion successful
+	if ok {
+		// Create new exec.Cmd containing `sh -c <script>`
+		cmd := exec.Command("sh", "-c", script)
+		// Set command I/O
+		cmd.Stdout = os.Stdout
+		cmd.Stdin = os.Stdin
+		cmd.Stderr = os.Stderr
+		// Run command
+		_ = cmd.Run()
+		return "", nil
+	} else {
+		return nil, errors.New("script not provided")
+	}
+}