add sendmail support

generate.py

@@ -11,6 +11,7 @@ import argparse
 import quopri
 import requests
 import json
+import subprocess
 from pprint import pprint
 
 CONFIG_FILE = "generator.conf"
@@ -134,6 +135,7 @@ if __name__ == "__main__":
     parser.add_argument("--debug", action="store_true", help=argparse.SUPPRESS)
     parser.add_argument("--write-mbox", action="store_true")
     parser.add_argument("--send-mm", action="store_true")
+    parser.add_argument("--send-mail", action="store_true")
     args = parser.parse_args()
 
     config = yaml.full_load(open(args.config))
@@ -209,6 +211,14 @@ if __name__ == "__main__":
         for top in to:  
             pprint(top.__dict__)
         pprint(context)
+    elif args.send_mail:
+        msg = email.message.EmailMessage()
+        msg.set_content(template.render(context))
+        msg["Subject"] = j2env.from_string(config["invite_subject"]).render(context)
+        msg["From"] = email.utils.formataddr((config["redeleitung"]["name"], config["redeleitung"]["email"]))
+        msg["To"] = config["invite_mail"]
+        subprocess.run([*config["sendmail"], config["invite_mail"]], input=str(msg), text=True)
+
     elif args.write_mbox:
         msg = email.message.EmailMessage()
         msg.set_content(template.render(context))

generator.conf.example

@@ -63,6 +63,7 @@ place: Big Blue Button
 
 invite_mail: fsr-einladung@fsmi.uni-karlsruhe.de
 invite_subject: 'Einladung zum Fachschaftsrat am {{date|weekday}}, dem {{date|date}}'
+sendmail: ["/usr/sbin/sendmail"]
 
 mm_url: https://mattermost.fsmi.uni-karlsruhe.de/hooks/whatever