charge les templates jinja2 depuis le basename passé en argument

README.md

@@ -14,6 +14,7 @@ On a Debian-based host running at least Debian Stretch, you will need the
 following packages:
 - git (recommended for getting the source)
 - python3
+- python3-jinja2
 
 ### Manual installation
 

mailing.py

@@ -26,6 +26,7 @@ import argparse, csv, sys, re
 import smtplib, time, mimetypes
 from email.header import Header
 from email.message import EmailMessage
+from jinja2 import Environment, FileSystemLoader, select_autoescape
 
 
 def parse_args():
@@ -40,11 +41,12 @@ def parse_args():
     )
     ma.add_argument(
         "-b",
-        "--bodyfile",
-        metavar="BODY.FILE",
+        "--basename",
         type=str,
         required=True,
-        help="Template of the mail to be sent",
+        help="Templates basename to be used. The known extensions are: "
+        ".subject for subject, .txt for plain body "
+        "and optionally .html for html alternative.",
     )
     parser.add_argument(
         "-d",
@@ -82,12 +84,19 @@ def read_recipients_datas(args):
         return full_datas
 
 
-def read_body(args):
-    bodyfile = open(args.bodyfile)
-    body = ""
-    for line in bodyfile.readlines():
-        body = body + line
-    return body
+def read_templates(args):
+    env = Environment(
+        loader=FileSystemLoader("."), autoescape=select_autoescape(["html"])
+    )
+    templates = [
+        env.get_template("{}.subject".format(args.basename)),
+        env.get_template("{}.txt".format(args.basename)),
+    ]
+    try:
+        templates.append(env.get_template("{}.html".format(args.basename)))
+    except Exception:
+        pass
+    return templates
 
 
 def read_join(args):
@@ -218,11 +227,11 @@ if __name__ == "__main__":
 
     # read the recipients file
     datas = read_recipients_datas(args)
-    print(datas)
-    exit(0)
 
     # read the template of the mail
-    bodytemplate = read_body(args)
+    templates = read_templates(args)
+    print(templates)
+    exit(0)
 
     # optionnaly read the attachment of the mail
     attachment = None