fixing #17: better notification messages

README.md

@@ -15,6 +15,8 @@ To turn on notifications
 cp notifier.json.example notifier.json
 ```
 and make proper shell commands.
+Token REPLACE_MESSAGE_HERE will be replaced with your real error message.
+
 Then use *--notify-to* parameter for running ereb.py, for example to use slack do:
 ```sh
 python3 ereb.py --notify-to=slack

lib/notifier.py

@@ -22,7 +22,8 @@ def error(self, link, message):
                 link = urllib.parse.quote(link)
                 message = urllib.parse.quote(message)
 
-            subprocess.Popen(self.cmd % "{0}\n{1}".format(link, message), shell=True, stdout=subprocess.PIPE)
+            notifier_cmd = self.cmd.replace('REPLACE_MESSAGE_HERE', "{0}\n{1}".format(link, message))
+            subprocess.Popen(notifier_cmd, shell=True, stdout=subprocess.PIPE)
         else:
             logging.warning("Notifications are turned off")
 

notifier.json.example

@@ -1,4 +1,4 @@
 {
-  "logger": "echo '%s'",
-  "slack": "curl -X POST https://slack.com/api/chat.postMessage -d 'token=TOKEN&channel=CHANNEL_TO&username=ereb_bot&parse=full&link_names=1&icon_emoji=:kanye:&attachments=[{\"text\": \"%s :piska: \",\"fallback\": \"Ereb error\",\"short\":true,\"color\":\"danger\"}]' --silent > /dev/null"
+  "logger": "echo 'REPLACE_MESSAGE_HERE'",
+  "slack": "curl -X POST https://slack.com/api/chat.postMessage -d 'token=TOKEN&channel=CHANNEL_TO&username=ereb_bot&parse=full&link_names=1&icon_emoji=:kanye:&attachments=[{\"text\": \"REPLACE_MESSAGE_HERE :piska: \",\"fallback\": \"REPLACE_MESSAGE_HERE\",\"short\":true,\"color\":\"danger\"}]' --silent > /dev/null"
 }