diff mercurial/cmdutil.py @ 43898:023ad45e2fd2

releasenotes: extract helper for checking for incompatible arguments

This patch extracts a new check_incompatible_arguments() function
similar to check_at_most_one_arg(). The difference is that the new
function is for checking for arguments that are disallowed together
with some other argument but not mutually exclusive among themselves.

Differential Revision: https://phab.mercurial-scm.org/D7639

--- a/mercurial/cmdutil.py	Thu Dec 12 15:51:09 2019 -0800
+++ b/mercurial/cmdutil.py	Thu Dec 12 22:30:59 2019 -0800
@@ -272,6 +272,16 @@
             previous = x
 
 
+def check_incompatible_arguments(opts, first, *others):
+    """abort if the first argument is given along with any of the others
+
+    Unlike check_at_most_one_arg(), `others` are not mutually exclusive
+    among themselves.
+    """
+    for other in others:
+        check_at_most_one_arg(opts, first, other)
+
+
 def resolvecommitoptions(ui, opts):
     """modify commit options dict to handle related options