Entries with no md headings should not get heading prefix prepended

Files with no headings would previously get their entry be prefixed
with a markdown heading prefix (#)

src/khoj/processor/markdown/markdown_to_jsonl.py

@@ -2,7 +2,6 @@
 import glob
 import logging
 import re
-import time
 from pathlib import Path
 from typing import List
 
@@ -110,10 +109,13 @@ class MarkdownToJsonl(TextToJsonl):
             with open(markdown_file, "r", encoding="utf8") as f:
                 markdown_content = f.read()
                 markdown_entries_per_file = []
+                any_headings = re.search(markdown_heading_regex, markdown_content, flags=re.MULTILINE)
                 for entry in re.split(markdown_heading_regex, markdown_content, flags=re.MULTILINE):
-                    prefix = "#" if entry.startswith("#") else "# "
-                    if entry.strip(empty_escape_sequences) != "":
-                        markdown_entries_per_file.append(f"{prefix}{entry.strip(empty_escape_sequences)}")
+                    # Add heading level as the regex split removed it from entries with headings
+                    prefix = "#" if entry.startswith("#") else "# " if any_headings else ""
+                    stripped_entry = entry.strip(empty_escape_sequences)
+                    if stripped_entry != "":
+                        markdown_entries_per_file.append(f"{prefix}{stripped_entry}")
 
                 entry_to_file_map += zip(markdown_entries_per_file, [markdown_file] * len(markdown_entries_per_file))
                 entries.extend(markdown_entries_per_file)

tests/test_markdown_to_jsonl.py

@@ -27,6 +27,8 @@ def test_markdown_file_with_no_headings_to_jsonl(tmp_path):
 
     # Assert
     assert len(jsonl_data) == 1
+    # Ensure entries with no headings do not get heading prefix prepended
+    assert not jsonl_data[0]["compiled"].startswith("#") and not jsonl_data[0]["raw"].startswith("#")
 
 
 def test_single_markdown_entry_to_jsonl(tmp_path):