[clang-tidy-diff] Add an option to treat warnings as errors

[juru1234]

This patch allows to treat warnings as erros using clang-tidy-diff.

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[llvmbot]

@llvm/pr-subscribers-clang-tidy

Author: Julian (juru1234)

Changes

This patch allows to treat warnings as erros using clang-tidy-diff.

---

Full diff: https://github.com/llvm/llvm-project/pull/128221.diff

1 Files Affected:

• (modified) clang-tools-extra/clang-tidy/tool/clang-tidy-diff.py (+9)

diff --git a/clang-tools-extra/clang-tidy/tool/clang-tidy-diff.py b/clang-tools-extra/clang-tidy/tool/clang-tidy-diff.py
index 33de2077dfb1a..863b504539b58 100755
--- a/clang-tools-extra/clang-tidy/tool/clang-tidy-diff.py
+++ b/clang-tools-extra/clang-tidy/tool/clang-tidy-diff.py
@@ -259,6 +259,12 @@ def main():
         action="store_true",
         help="Only check files in the compilation database",
     )
+    parser.add_argument(
+        "-warnings-as-errors",
+        help="Upgrades clang-tidy warnings to errors. Same format as '-checks'.",
+        default="",
+    )
+
 
     clang_tidy_args = []
     argv = sys.argv[1:]
@@ -374,6 +380,9 @@ def main():
         common_clang_tidy_args.append("-extra-arg-before=%s" % arg)
     for plugin in args.plugins:
         common_clang_tidy_args.append("-load=%s" % plugin)
+    if args.warnings_as_errors != "":
+        common_clang_tidy_args.append("-warnings-as-errors=" + args.warnings_as_errors)
+
 
     for name in lines_by_file:
         line_filter_json = json.dumps(

[llvmbot]

@llvm/pr-subscribers-clang-tools-extra

Author: Julian (juru1234)

Changes

This patch allows to treat warnings as erros using clang-tidy-diff.

---

Full diff: https://github.com/llvm/llvm-project/pull/128221.diff

1 Files Affected:

• (modified) clang-tools-extra/clang-tidy/tool/clang-tidy-diff.py (+9)

diff --git a/clang-tools-extra/clang-tidy/tool/clang-tidy-diff.py b/clang-tools-extra/clang-tidy/tool/clang-tidy-diff.py
index 33de2077dfb1a..863b504539b58 100755
--- a/clang-tools-extra/clang-tidy/tool/clang-tidy-diff.py
+++ b/clang-tools-extra/clang-tidy/tool/clang-tidy-diff.py
@@ -259,6 +259,12 @@ def main():
         action="store_true",
         help="Only check files in the compilation database",
     )
+    parser.add_argument(
+        "-warnings-as-errors",
+        help="Upgrades clang-tidy warnings to errors. Same format as '-checks'.",
+        default="",
+    )
+
 
     clang_tidy_args = []
     argv = sys.argv[1:]
@@ -374,6 +380,9 @@ def main():
         common_clang_tidy_args.append("-extra-arg-before=%s" % arg)
     for plugin in args.plugins:
         common_clang_tidy_args.append("-load=%s" % plugin)
+    if args.warnings_as_errors != "":
+        common_clang_tidy_args.append("-warnings-as-errors=" + args.warnings_as_errors)
+
 
     for name in lines_by_file:
         line_filter_json = json.dumps(

[HerrCai0907]

LGTM. Please note this in release note

[PiotrZSL]

Release notes entry is missing.
Look into clang-tidy 20 release notes and just copy entry and adjust it.

[carlosgalvezp]

Nit: specify in the commit message title that this is about clang-tidy-diff.py. Otherwise it seems you are adding warnings as errors to clang-tidy itself.

[github-actions]

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