Add Heroku support (#1)

* Create Procfile

* Create config.py

* Create runtime.txt

* Create app.json

* Add "Deploy to Heroku" button to README.md

Co-authored-by: Dash Eclipse <dashezup@disroot.org>

Procfile

@@ -0,0 +1 @@
+web: python main.py

README.md

@@ -15,6 +15,10 @@ conflicts.
 3. Format and send the text to a Telegram chat through "sendMessage" method of
    Telegram Bot API (`GET` request)
 
+### Heroku
+
+[![Deploy](https://www.herokucdn.com/deploy/button.svg)](https://heroku.com/deploy?template=https://github.com/dashezup/github-webhook-to-telegram)
+
 ### Setup
 
 You need a Telegram bot token, create a Telegram bot with

app.json

@@ -0,0 +1,20 @@
+{
+  "name": "GitHub Webhook to Telegram",
+  "description": "Receive GitHub webhook events and send to Telegram chats with AIOHTTP through Telegram Bot API",
+  "repository": "https://github.com/dashezup/github-webhook-to-telegram",
+  "keywords": [
+    "github",
+    "webhooks",
+    "telegram",
+    "aiohttp",
+    "python",
+    "telegram-bot",
+    "telegram-bot-api"
+  ],
+  "env": {
+    "HOOK_CONFIG": {
+      "description": "configuration in JSON format, check README and config_sample.json",
+      "required": true
+    }
+  }
+}

config.py

@@ -3,10 +3,11 @@ from os import environ
 
 if environ.get('DYNO'):
     data = json.loads(environ.get("HOOK_CONFIG"))
+    PORT = int(environ.get('PORT'))
 else:
     with open("config.json") as f:
         data = json.load(f)
+    PORT = data.get('port')
 
 BOT_TOKEN = data['bot_token']
-PORT = data.get('port')
 GH_WEBHOOKS = data['gh_webhooks']

runtime.txt

@@ -0,0 +1 @@
+python-3.9.4