rss-bot: Add option to convert body to Markdown

zulip/integrations/rss/requirements.txt

@@ -1 +1,2 @@
 feedparser>=6.0.10
+markdownify>=0.11.6

zulip/integrations/rss/rss-bot

@@ -8,6 +8,7 @@ import calendar
 import errno
 import hashlib
 import logging
+from markdownify import markdownify
 import os
 import re
 import sys
@@ -92,6 +93,19 @@ parser.add_argument(
     help="Convert $ to $$ (for KaTeX processing)",
     default=False,
 )
+body = parser.add_mutually_exclusive_group()
+body.add_argument(
+    "--strip",
+    dest="strip",
+    action="store_true",
+    help="Strip HTML tags from body",
+)
+body.add_argument(
+    "--markdownify",
+    dest="strip",
+    action="store_false",
+    help="Convert body from HTML to Markdown",
+)
 
 opts = parser.parse_args()
 
@@ -177,7 +191,8 @@ def send_zulip(entry: Any, feed_name: str) -> Dict[str, Any]:
     if opts.unwrap:
         body = unwrap_text(body)
 
-    content = f"**[{entry.title}]({entry.link})**\n{strip_tags(body)}\n{entry.link}"
+    convert = strip_tags if opts.strip else markdownify
+    content = f"**[{entry.title}]({entry.link})**\n{convert(body)}\n{entry.link}"
 
     if opts.math:
         content = content.replace("$", "$$")