├── README.md
├── LICENSE
└── appwrapper.go


/README.md:
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 1 | # appwrapper
 2 | 
 3 | Execute a binary on Linux and show a desktop notification in case of errors
 4 | 
 5 | ![](https://user-images.githubusercontent.com/2480569/68097212-9985f080-fead-11e9-9c9c-534b5de06aa7.png)
 6 | 
 7 | ## Usage
 8 | 
 9 | Just prepend `appwrapper` when invoking an application:
10 | 
11 | ```
12 | appwrapper ./Atom-1.5.3-x86_64.AppImage
13 | ```
14 | 
15 | This is mainly inteded for wrapping applications that are launched by graphical user interfaces.
16 | 
17 | ## Credits
18 | 
19 | Inspired by Haiku OS
20 | 
21 | ![](https://user-images.githubusercontent.com/2480569/61177311-aa8ab900-a5c1-11e9-8130-804d01ec37a2.png)
22 | 


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/LICENSE:
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 1 | MIT License
 2 | 
 3 | Copyright (c) 2019 probonopd
 4 | 
 5 | Permission is hereby granted, free of charge, to any person obtaining a copy
 6 | of this software and associated documentation files (the "Software"), to deal
 7 | in the Software without restriction, including without limitation the rights
 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 9 | copies of the Software, and to permit persons to whom the Software is
10 | furnished to do so, subject to the following conditions:
11 | 
12 | The above copyright notice and this permission notice shall be included in all
13 | copies or substantial portions of the Software.
14 | 
15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 | SOFTWARE.
22 | 


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/appwrapper.go:
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 1 | // appwrapper executes applications and presents errors to the GUI as notifications
 2 | package main
 3 | 
 4 | import (
 5 | 	"bytes"
 6 | 	"log"
 7 | 	"os"
 8 | 	"os/exec"
 9 | 	"path/filepath"
10 | 	"strings"
11 | 	"syscall"
12 | 
13 | 	"github.com/godbus/dbus"
14 | )
15 | 
16 | func main() {
17 | 
18 | 	if len(os.Args) < 2 {
19 | 		log.Println("Argument missing")
20 | 		os.Exit(1)
21 | 	}
22 | 
23 | 	cmd := exec.Command(os.Args[1], os.Args[2:]...)
24 | 
25 | 	var out bytes.Buffer
26 | 	cmd.Stderr = &out
27 | 
28 | 	if err := cmd.Start(); err != nil {
29 | 		log.Fatalf("cmd.Start: %v", err)
30 | 	}
31 | 
32 | 	if err := cmd.Wait(); err != nil {
33 | 		if exiterr, ok := err.(*exec.ExitError); ok {
34 | 			// The program has exited with an exit code != 0
35 | 			if status, ok := exiterr.Sys().(syscall.WaitStatus); ok {
36 | 				log.Printf("Exit Status: %d", status.ExitStatus())
37 | 				log.Println(out.String())
38 | 
39 | 				summary := "Error"
40 | 				body := strings.TrimSpace(out.String())
41 | 
42 | 				if strings.Contains(out.String(), "cannot open shared object file: No such file or directory") == true {
43 | 					parts := strings.Split(out.String(), ":")
44 | 					summary = "Error: Missing library " + strings.TrimSpace(parts[2])
45 | 					body = filepath.Base(os.Args[1]) + " could not be started because " + strings.TrimSpace(parts[2]) + " is missing"
46 | 				}
47 | 				sendDesktopNotification(summary, body)
48 | 
49 | 			}
50 | 		} else {
51 | 			log.Fatalf("cmd.Wait: %v", err)
52 | 		}
53 | 	}
54 | }
55 | 
56 | // Send desktop notification. See
57 | // https://developer.gnome.org/notification-spec/
58 | func sendDesktopNotification(title string, body string) {
59 | 	conn, err := dbus.SessionBus()
60 | 	defer conn.Close()
61 | 	if err != nil {
62 | 		log.Println(os.Stderr, "Failed to connect to session bus:", err)
63 | 		return
64 | 	}
65 | 	obj := conn.Object("org.freedesktop.Notifications", "/org/freedesktop/Notifications")
66 | 	call := obj.Call("org.freedesktop.Notifications.Notify", 0, "", uint32(0),
67 | 		"", title, body, []string{},
68 | 		map[string]dbus.Variant{},
69 | 		int32(0)) // The timeout time in milliseconds at which the notification should automatically close.
70 | 	// If -1, the notification's expiration time is dependent on the notification server's settings,
71 | 	// and may vary for the type of notification.
72 | 	// If 0, the notification never expires.
73 | 
74 | 	if call.Err != nil {
75 | 		panic(call.Err)
76 | 	}
77 | }
78 | 


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