Import latest lint targets from repo:ci-managmeent
Change-Id: I6f27903cd6a9aa9896ec1f80582fc30dcc996a8d
diff --git a/makefiles/lint/python/flake8.mk b/makefiles/lint/python/flake8.mk
new file mode 100644
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+++ b/makefiles/lint/python/flake8.mk
@@ -0,0 +1,94 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2017-2023 Open Networking Foundation (ONF) and the ONF Contributors
+#
+# Licensed under the Apache License, Version 2.0 (the "License")
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------
+
+$(if $(DEBUG),$(warning ENTER))
+
+##-------------------##
+##---] GLOBALS [---##
+##-------------------##
+.PHONY: lint-flake8 lint-flake8-all lint-flake8-modified
+
+PYTHON_FILES ?= $(error PYTHON_FILES= required)
+
+## -----------------------------------------------------------------------
+## Intent: Use the flake8 command to perform syntax checking.
+## Usage:
+## % make lint
+## % make lint-flake8-all
+## -----------------------------------------------------------------------
+ifndef NO-LINT-FLAKE8
+ lint-flake8-mode := $(if $(have-python-files),modified,all)
+ lint : lint-flake8
+ lint-flake8 : lint-flake8-$(lint-flake8-mode)
+endif# NO-LINT-FLAKE8
+
+## -----------------------------------------------------------------------
+## Intent: exhaustive flake8 syntax checking
+## -----------------------------------------------------------------------
+# Construct: find . \( -name '__ignored__' -o -name dir -o name dir \)
+# flake8-find-filter := $(null)
+# flake8-find-filter += -name '__ignored__'# # for alignment
+# flake8-find-filter += $(foreach dir,$(onf-excl-dirs),-o -name $(dir)))
+
+lint-flake8-all: $(venv-activate-script)
+ $(HIDE)$(MAKE) --no-print-directory lint-flake8-install
+
+ $(activate) && $(call gen-python-find-cmd) \
+ | $(xargs-n1) flake8 --max-line-length=99 --count
+
+# && find . \( $(flake8-find-filter) \) -prune -o -name '*.py' -print0 \
+# | $(xargs-n1) flake8 --max-line-length=99 --count
+
+## -----------------------------------------------------------------------
+## Intent: check deps for format and python3 cleanliness
+## Note:
+## pylint --py3k option no longer supported
+## -----------------------------------------------------------------------
+lint-flake8-modified: $(venv-activate-script)
+ $(HIDE)$(MAKE) --no-print-directory lint-flake8-install
+
+ $(activate)\
+ && flake8 --max-line-length=99 --count $(PYTHON_FILES)
+
+## -----------------------------------------------------------------------
+## Intent:
+## -----------------------------------------------------------------------
+.PHONY: lint-flake8-install
+lint-flake8-install: $(venv-activate-script)
+ @echo
+ @echo "** -----------------------------------------------------------------------"
+ @echo "** python flake8 syntax checking"
+ @echo "** -----------------------------------------------------------------------"
+ $(activate) && pip install --upgrade flake8
+ $(activate) && flake8 --version
+ @echo
+
+## -----------------------------------------------------------------------
+## Intent: Display command usage
+## -----------------------------------------------------------------------
+help::
+ @echo ' lint-flake8 Syntax check python using the flake8 command'
+ ifdef VERBOSE
+ @echo ' $(MAKE) lint-pylint PYTHON_FILES=...'
+ @echo ' lint-flake8-modified flake8 checking: only modified'
+ @echo ' lint-flake8-all flake8 checking: exhaustive'
+ @echo ' lint-flake8-install Install the flake8 command'
+ endif
+
+$(if $(DEBUG),$(warning LEAVE))
+
+# [EOF]