MR 24 with fixes

see: https://github.com/sebseager/slack-exporter/pull/24

.gitignore

@@ -4,3 +4,6 @@ __pycache__
 .idea
 .vscode
 .DS_Store
+bin/
+pyvenv.cfg
+out/

exporter.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python3
 import os
 import sys
 import requests
@@ -19,8 +18,6 @@ if os.path.isfile(env_file):
 
 
 # write handling
-
-
 def post_response(response_url, text):
     requests.post(response_url, json={"text": text})
 
@@ -143,11 +140,15 @@ def channel_list(team_id=None, response_url=None):
     )
 
 
-def get_file_list():
+def get_file_list(channel_id=None):
     current_page = 1
     total_pages = 1
     while current_page <= total_pages:
-        response = get_data("https://slack.com/api/files.list", params={"page": current_page})
+        params = {"page": current_page}
+        if channel_id:
+            # Add the channel_id parameter if specified
+            params["channel"] = channel_id
+        response = get_data("https://slack.com/api/files.list", params=params)
         json_data = response.json()
         total_pages = json_data["paging"]["pages"]
         for file in json_data["files"]:
@@ -328,7 +329,8 @@ def parse_channel_history(msgs, users, check_thread=False):
     if "messages" in msgs:
         msgs = msgs["messages"]
 
-    messages = [x for x in msgs if x["type"] == "message"]  # files are also messages
+    messages = [x for x in msgs if x["type"] ==
+                "message"]  # files are also messages
     body = ""
     for msg in messages:
         if "user" in msg:
@@ -415,10 +417,10 @@ def download_file(destination_path, url, attempt = 0):
     else:
         return True
 
-def save_files(file_dir):
+def save_files(file_dir, channel_id=None):
     total = 0
     start = default_timer()
-    for file_info in get_file_list():
+    for file_info in get_file_list(channel_id=channel_id):
         url = file_info["url_private"]
         file_info["name"] = sanitize_filename(file_info["name"])
         destination_filename = "{id}-{name}".format(**file_info)
@@ -568,4 +570,8 @@ if __name__ == "__main__":
             save_replies(ch_hist, ch_id, ch_list, user_list)
 
     if a.files and a.o is not None:
+        if a.ch:
+            ch_id = a.ch
+            save_files(out_dir, channel_id=ch_id)
+        else:
             save_files(out_dir)