# HG changeset patch
# User Anton Shestakov <av6@dwimlabs.net>
# Date 1668950207 -14400
# Node ID 7650b38961a28a357cac2f6e379d9336a7d511b5
# Parent  a456706491c0fbf3605561f13b68aaebfda8b74f
prune: check user-supplied CLI flags in a modern way

Calling the function twice because --biject is an alias to --pair. Technically
they don't conflict with each other, only with --fold and --split.

diff -r a456706491c0 -r 7650b38961a2 hgext3rd/evolve/cmdrewrite.py
--- a/hgext3rd/evolve/cmdrewrite.py	Tue Nov 15 16:52:16 2022 +0400
+++ b/hgext3rd/evolve/cmdrewrite.py	Sun Nov 20 17:16:47 2022 +0400
@@ -920,10 +920,8 @@
     fold = opts.get('fold')
     split = opts.get('split')
 
-    options = [o for o in (r'pair', r'fold', r'split') if opts.get(o)]
-    if 1 < len(options):
-        _opts = pycompat.sysbytes(r', '.join(options))
-        raise error.Abort(_(b"can only specify one of %s") % _opts)
+    compat.check_at_most_one_arg(opts, 'pair', 'fold', 'split')
+    compat.check_at_most_one_arg(opts, 'biject', 'fold', 'split')
 
     if bookmarks:
         reachablefrombookmark = rewriteutil.reachablefrombookmark
diff -r a456706491c0 -r 7650b38961a2 tests/test-prune.t
--- a/tests/test-prune.t	Tue Nov 15 16:52:16 2022 +0400
+++ b/tests/test-prune.t	Sun Nov 20 17:16:47 2022 +0400
@@ -36,20 +36,20 @@
 ---------------------------------------
 
   $ hg prune --fold --pair
-  abort: can only specify one of pair, fold
-  [255]
+  abort: cannot specify both --pair and --fold
+  [10]
   $ hg prune --fold --biject
-  abort: no revisions specified to prune
-  [255]
+  abort: cannot specify both --biject and --fold
+  [10]
   $ hg prune --split --fold
-  abort: can only specify one of fold, split
-  [255]
+  abort: cannot specify both --fold and --split
+  [10]
   $ hg prune --split --fold --pair
-  abort: can only specify one of pair, fold, split
-  [255]
+  abort: cannot specify both --pair and --fold
+  [10]
   $ hg prune --split --fold --biject
-  abort: can only specify one of fold, split
-  [255]
+  abort: cannot specify both --fold and --split
+  [10]
 
 Check simple case
 ----------------------------