[ot] ci: .github,.gitlab-ci.d: replace ot-tidy.sh with ot_tidy.py

Replaces all usages, updates docs, and removes the older script.

Signed-off-by: Alice Ziuziakowska <[email protected]>

Author: ziuziakowska

.github/workflows/build_test.yaml

@@ -3,6 +3,8 @@
 # QEMU OpenTitan CI
 #
 # Copyright (c) 2023-2025 Rivos, Inc.
+# Copyright (c) 2025 lowRISC contributors.
+#
 # SPDX-License-Identifier: Apache License 2.0
 #------------------------------------------------------------------------------
 
@@ -121,7 +123,7 @@ jobs:
       - name: Clang tidy
         # Expect many warnings/errors (accounted but not reported) from included QEMU files
         run: |
-          scripts/opentitan/ot-tidy.sh --ci -p build-clang
+          scripts/opentitan/ot_tidy.py --build-dir build-clang --ci-files -j
 
   lint-commits:
     runs-on: ubuntu-latest

.gitlab-ci.d/opentitan/build.yml

@@ -73,4 +73,4 @@ tidy:
   script:
     - QEMU_DIR="$(pwd -P)"; cat build/compile_commands.json.tpl |
         sed -E 's,@QEMU_DIR@,'"$QEMU_DIR"',g' > build/compile_commands.json
-    - scripts/opentitan/ot-tidy.sh --ci -p build
+    - scripts/opentitan/ot_tidy.py --build-dir build --ci-files -j

docs/opentitan/tools.md

@@ -50,7 +50,7 @@ of options and the available features.
 * [`keymgre-dpe.py`](keymgre-dpe.md) is a simple Python tool to generate KeyManager DPE output keys
   using the same parameters as the KeyManager DPE. It is dedicated to unit test purposes.
 * `ot-format.sh` is a simple shell wrapper to run clang-format (code formatter) on OpenTitan files
-* `ot-tidy.sh` is a simple shell wrapper to run clang-tidy (C linter) on OpenTitan files
+* `ot_tidy.py` is a python wrapper script to run clang-tidy (C linter) on OpenTitan files, optionally in parallel and locally or in CI.
 * `present.py` implements the Present 128-bit scrambler/descrambler used in OTP image files for
   HW digest verification.
 * [spidevice.py](spidevice.md) is a tiny script to upload a binary using the SPI device.