Merge pull request nf-core#2884 from nf-core/mesg_unauthorised__download_fail

Gives an error message if safe_get() returns 401 (wrong GITHUB_TOKEN?)

Author: thanhleviet

CHANGELOG.md

@@ -19,6 +19,7 @@
 ### Download
 
 - Replace `--tower` with `--platform`. The former will remain for backwards compatability for now but will be removed in a future release.
+- Better error message when GITHUB_TOKEN exists but is wrong/outdated
 
 ### Components
 

nf_core/utils.py

@@ -454,6 +454,7 @@ def __init__(self):  # pylint: disable=super-init-not-called
         self.auth_mode = None
         self.return_ok = [200, 201]
         self.return_retry = [403]
+        self.return_unauthorised = [401]
         self.has_init = False
 
     def lazy_init(self):
@@ -546,6 +547,8 @@ def safe_get(self, url):
                 raise e
             else:
                 return r
+        elif request.status_code in self.return_unauthorised:
+            raise RuntimeError(f"GitHub API PR failed, probably due to an expired GITHUB_TOKEN.")
 
         return request