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Message-Id: <20241025172303.77538-5-irogers@google.com>
Date: Fri, 25 Oct 2024 10:23:01 -0700
From: Ian Rogers <irogers@...gle.com>
To: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, 
	Arnaldo Carvalho de Melo <acme@...nel.org>, Namhyung Kim <namhyung@...nel.org>, 
	Mark Rutland <mark.rutland@....com>, 
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>, Jiri Olsa <jolsa@...nel.org>, 
	Ian Rogers <irogers@...gle.com>, Adrian Hunter <adrian.hunter@...el.com>, 
	Kan Liang <kan.liang@...ux.intel.com>, James Clark <james.clark@...aro.org>, 
	John Garry <john.g.garry@...cle.com>, Athira Jajeev <atrajeev@...ux.vnet.ibm.com>, 
	Veronika Molnarova <vmolnaro@...hat.com>, Ze Gao <zegao2021@...il.com>, linux-kernel@...r.kernel.org, 
	linux-perf-users@...r.kernel.org
Subject: [PATCH v1 4/6] perf build: Add pylint build tests

If PYLINT=1 is passed to the build then run pylint over python code in
perf. Unlike shellcheck this isn't default on as there are currently
too many errors.

Signed-off-by: Ian Rogers <irogers@...gle.com>
---
 tools/perf/Build            | 13 +++++++++++++
 tools/perf/Makefile.perf    |  7 ++++++-
 tools/perf/pmu-events/Build | 13 ++++++++++++-
 tools/perf/scripts/Build    | 13 +++++++++++++
 tools/perf/tests/Build      | 13 +++++++++++++
 tools/perf/util/Build       | 12 ++++++++++++
 6 files changed, 69 insertions(+), 2 deletions(-)

diff --git a/tools/perf/Build b/tools/perf/Build
index 312914994c89..06107f1e1d42 100644
--- a/tools/perf/Build
+++ b/tools/perf/Build
@@ -89,3 +89,16 @@ $(OUTPUT)%.mypy_log: %
 	$(Q)$(call echo-cmd,test)mypy "$<" > $@ || (cat $@ && rm $@ && false)
 
 perf-y += $(MYPY_TEST_LOGS)
+
+ifdef PYLINT
+  PY_TESTS := $(shell find python -type f -name '*.py')
+  PYLINT_TEST_LOGS := $(PY_TESTS:python/%=python/%.pylint_log)
+else
+  PYLINT_TEST_LOGS :=
+endif
+
+$(OUTPUT)%.pylint_log: %
+	$(call rule_mkdir)
+	$(Q)$(call echo-cmd,test)pylint "$<" > $@ || (cat $@ && rm $@ && false)
+
+perf-y += $(PYLINT_TEST_LOGS)
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 333afe29b1e2..6b5b420d794a 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -282,8 +282,13 @@ ifeq ($(MYPY),1)
   MYPY := $(shell which mypy 2> /dev/null)
 endif
 
+# Runs pylint on perf python files
+ifeq ($(PYLINT),1)
+  PYLINT := $(shell which pylint 2> /dev/null)
+endif
+
 export srctree OUTPUT RM CC CXX LD AR CFLAGS CXXFLAGS V BISON FLEX AWK
-export HOSTCC HOSTLD HOSTAR HOSTCFLAGS SHELLCHECK MYPY
+export HOSTCC HOSTLD HOSTAR HOSTCFLAGS SHELLCHECK MYPY PYLINT
 
 include $(srctree)/tools/build/Makefile.include
 
diff --git a/tools/perf/pmu-events/Build b/tools/perf/pmu-events/Build
index fc1dc810ffb6..32f387d48908 100644
--- a/tools/perf/pmu-events/Build
+++ b/tools/perf/pmu-events/Build
@@ -52,8 +52,19 @@ $(OUTPUT)%.mypy_log: %
 	$(call rule_mkdir)
 	$(Q)$(call echo-cmd,test)mypy "$<" > $@ || (cat $@ && rm $@ && false)
 
+ifdef PYLINT
+  PMU_EVENTS_PY_TESTS := $(wildcard *.py)
+  PMU_EVENTS_PYLINT_TEST_LOGS := $(JEVENTS_PY_TESTS:%=%.pylint_log)
+else
+  PMU_EVENTS_PYLINT_TEST_LOGS :=
+endif
+
+$(OUTPUT)%.pylint_log: %
+	$(call rule_mkdir)
+	$(Q)$(call echo-cmd,test)pylint "$<" > $@ || (cat $@ && rm $@ && false)
+
 $(PMU_EVENTS_C): $(JSON) $(JSON_TEST) $(JEVENTS_PY) $(METRIC_PY) $(METRIC_TEST_LOG) \
-    $(EMPTY_PMU_EVENTS_TEST_LOG) $(PMU_EVENTS_MYPY_TEST_LOGS)
+    $(EMPTY_PMU_EVENTS_TEST_LOG) $(PMU_EVENTS_MYPY_TEST_LOGS) $(PMU_EVENTS_PYLINT_TEST_LOGS)
 	$(call rule_mkdir)
 	$(Q)$(call echo-cmd,gen)$(PYTHON) $(JEVENTS_PY) $(JEVENTS_ARCH) $(JEVENTS_MODEL) pmu-events/arch $@
 endif
diff --git a/tools/perf/scripts/Build b/tools/perf/scripts/Build
index a5350dc6ac50..91229a1fe3ff 100644
--- a/tools/perf/scripts/Build
+++ b/tools/perf/scripts/Build
@@ -15,3 +15,16 @@ $(OUTPUT)%.mypy_log: %
 	$(Q)$(call echo-cmd,test)mypy "$<" > $@ || (cat $@ && rm $@ && false)
 
 perf-y += $(MYPY_TEST_LOGS)
+
+ifdef PYLINT
+  PY_TESTS := $(shell find python -type f -name '*.py')
+  PYLINT_TEST_LOGS := $(PY_TESTS:python/%=python/%.pylint_log)
+else
+  PYLINT_TEST_LOGS :=
+endif
+
+$(OUTPUT)%.pylint_log: %
+	$(call rule_mkdir)
+	$(Q)$(call echo-cmd,test)pylint "$<" > $@ || (cat $@ && rm $@ && false)
+
+perf-y += $(PYLINT_TEST_LOGS)
diff --git a/tools/perf/tests/Build b/tools/perf/tests/Build
index 4d7c38a2bf6c..5fe011cf897b 100644
--- a/tools/perf/tests/Build
+++ b/tools/perf/tests/Build
@@ -104,3 +104,16 @@ $(OUTPUT)%.mypy_log: %
 	$(Q)$(call echo-cmd,test)mypy "$<" > $@ || (cat $@ && rm $@ && false)
 
 perf-test-y += $(MYPY_TEST_LOGS)
+
+ifdef PYLINT
+  PY_TESTS := $(shell find tests/shell -type f -name '*.py')
+  PYLINT_TEST_LOGS := $(PY_TESTS:tests/shell/%=shell/%.pylint_log)
+else
+  PYLINT_TEST_LOGS :=
+endif
+
+$(OUTPUT)%.pylint_log: %
+	$(call rule_mkdir)
+	$(Q)$(call echo-cmd,test)pylint "$<" > $@ || (cat $@ && rm $@ && false)
+
+perf-test-y += $(PYLINT_TEST_LOGS)
diff --git a/tools/perf/util/Build b/tools/perf/util/Build
index 3baa1f41502d..c33e2372579e 100644
--- a/tools/perf/util/Build
+++ b/tools/perf/util/Build
@@ -422,3 +422,15 @@ $(OUTPUT)%.mypy_log: %
 	$(Q)$(call echo-cmd,test)mypy "$<" > $@ || (cat $@ && rm $@ && false)
 
 perf-util-y += $(MYPY_TEST_LOGS)
+
+ifdef PYLINT
+  PYLINT_TEST_LOGS := $(PY_TESTS:%=%.pylint_log)
+else
+  PYLINT_TEST_LOGS :=
+endif
+
+$(OUTPUT)%.pylint_log: %
+	$(call rule_mkdir)
+	$(Q)$(call echo-cmd,test)pylint "$<" > $@ || (cat $@ && rm $@ && false)
+
+perf-util-y += $(PYLINT_TEST_LOGS)
-- 
2.47.0.163.g1226f6d8fa-goog


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