[UptestTestChecks][NFC] Share some common command line options code

Summary:
Add a function common.parse_commandline_args() that adds options common
to all tools (--verbose and --update-only) and returns the parsed
commandline arguments. I plan to use the shared parsing of --verbose in a
follow-up commit to remove most of the `if args.verbose:` checks in the
scripts.

Reviewers: xbolva00, MaskRay

Reviewed By: MaskRay

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D70428

1 files changed, 8 insertions, 0 deletions

diff --git a/llvm/utils/UpdateTestChecks/common.py b/llvm/utils/UpdateTestChecks/common.py
index 8a864446a8a..f0646051090 100644
--- a/llvm/utils/UpdateTestChecks/common.py
+++ b/llvm/utils/UpdateTestChecks/common.py
@@ -13,6 +13,14 @@ else:
 
 ##### Common utilities for update_*test_checks.py
 
+
+def parse_commandline_args(parser):
+  parser.add_argument('-v', '--verbose', action='store_true',
+                      help='Show verbose output')
+  parser.add_argument('-u', '--update-only', action='store_true',
+                      help='Only update test if it was already autogened')
+  return parser.parse_args()
+
 def should_add_line_to_output(input_line, prefix_set):
   # Skip any blank comment lines in the IR.
   if input_line.strip() == ';':