feat: Basic message logger.

messagelogger/lib.py

@@ -0,0 +1,28 @@
+import difflib
+from io import BytesIO
+
+import discord
+
+
+def diff_file(before: str, after: str, filename: str = "changes.diff") -> discord.File:
+    """
+    Generates a diff from two strings and returns it as a discord.File.
+
+    Args:
+        before (str): The original string content.
+        after (str): The modified string content.
+        filename (str, optional): The name for the output file. Defaults to "changes.diff".
+
+    Returns:
+        discord.File: A file object ready to be sent in a Discord message.
+    """
+    diff_generator = difflib.ndiff(
+        before.splitlines(),
+        after.splitlines(),
+    )
+    diff_text = "\n".join(diff_generator) or "No changes."
+    diff_bytes = diff_text.encode('utf-8')
+
+    with BytesIO(diff_bytes) as buffer:
+        buffer.seek(0)
+        return discord.File(buffer, filename=filename)