Makefile library merge with onf-make and voltha-lib-go
makefiles/
----------
o Import standalone makefile directories to checkin smaller parts of a mega patch.
o Build out directory hierarchy by topic and feature.
makefiles/lint/yaml/
--------------------
o Pull in logic evolved in repo:voltha-lib-go.
o Refactoring: support special snowflake targets by repository.
o ci-management and voltha-lib-go use distinct yamllint.conf files.
o Separate until there is time to review and consolidate.
o Added deps for on-demand local install of yamllint.
- requirements.txt could be used but every build would incur overhead.
Makefile
--------
o Use latest syntax from repo:onf-make.
o No need to set path variables, makefiles/include.mk can infer them.
o Added a help target to explicitly display targets and suggestions.
o Logic is bundled in libraries and use of 'make help' is not well known.
Change-Id: Id8eba6f914a7bfe9a31637901bd8fb78a387e0c2
diff --git a/makefiles/lint/yaml/yamllint.mk b/makefiles/lint/yaml/yamllint.mk
new file mode 100644
index 0000000..1563c7c
--- /dev/null
+++ b/makefiles/lint/yaml/yamllint.mk
@@ -0,0 +1,78 @@
+# -*- 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-yaml lint-yaml-all lint-yaml-modified
+
+have-yaml-files := $(if $(strip $(YAML_FILES)),true)
+YAML_FILES ?= $(error YAML_FILES= is required)
+
+YAMLLINT = $(activate) && yamllint
+yamllint-args += --strict
+
+## -----------------------------------------------------------------------
+## Intent: Use the yaml command to perform syntax checking.
+## -----------------------------------------------------------------------
+ifndef NO-LINT-YAML
+ lint-yaml-mode := $(if $(have-yaml-files),modified,all)
+ lint : lint-yaml
+ lint-yaml : lint-yaml-$(lint-yaml-mode)
+endif# NO-LINT-YAML
+
+## -----------------------------------------------------------------------
+## Intent: exhaustive yaml syntax checking
+## -----------------------------------------------------------------------
+lint-yaml-all: lint-yaml-cmd-version
+
+ $(call banner-enter,Target $@)
+ $(HIDE)$(MAKE) --no-print-directory lint-yaml-install
+ $(HIDE)$(activate) && $(call gen-yaml-find-cmd) \
+ | $(env-clean) $(xargs-cmd) -I'{}' \
+ bash -c "$(YAMLLINT) $(yamllint-args) {}"
+ $(call banner-leave,Target $@)
+
+## -----------------------------------------------------------------------
+## Intent: check deps for format and python3 cleanliness
+## Note:
+## yaml --py3k option no longer supported
+## -----------------------------------------------------------------------
+lint-yaml-modified: lint-yaml-cmd-version
+
+ $(call banner-enter,Target $@)
+ $(HIDE)$(MAKE) --no-print-directory lint-yaml-install
+ $(YAMLLINT) $(yamllint-args) $(YAML_FILES)
+ $(call banner-leave,Target $@)
+
+## -----------------------------------------------------------------------
+## Intent: Display command usage
+## -----------------------------------------------------------------------
+help::
+ @echo ' lint-yaml Syntax check python using the yaml command'
+ ifdef VERBOSE
+ @echo ' $(MAKE) lint-yaml YAML_FILES=...'
+ @echo ' lint-yaml-all yaml checking: exhaustive'
+ @echo ' lint-yaml-modified yaml checking: only locally modified'
+ @echo ' lint-yaml-install Install the pylint command'
+ endif
+
+$(if $(DEBUG),$(warning LEAVE))
+
+# [EOF]