Initial import from repo:ci-management/makefiles
Change-Id: Ie6267d932de97f8ee38908e2a1aab146cd11085b
diff --git a/makefiles/lint/yaml.mk b/makefiles/lint/yaml.mk
new file mode 100644
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+++ b/makefiles/lint/yaml.mk
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+# -*- 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)
+
+## -----------------------------------------------------------------------
+## Intent: Use the yaml command to perform syntax checking.
+## o If UNSTABLE=1 syntax check all sources
+## o else only check sources modified by the developer.
+## Usage:
+## % make lint UNSTABLE=1
+## % make lint-yaml-all
+## -----------------------------------------------------------------------
+lint-yaml-mode := $(if $(have-yaml-files),modified,all)
+lint-yaml : lint-yaml-$(lint-yaml-mode)
+
+ifndef NO-LINT-YAML
+ lint : lint-yaml# # Enable as a default lint target
+endif# NO-LINT-YAML
+
+## -----------------------------------------------------------------------
+## Intent: exhaustive yaml syntax checking
+## -----------------------------------------------------------------------
+lint-yaml-all:
+ $(HIDE)$(MAKE) --no-print-directory lint-yaml-install
+
+ find . \( -iname '*.yaml' -o -iname '*.yml' \) -print0 \
+ | $(xargs-n1-clean) yamllint --strict
+
+## -----------------------------------------------------------------------
+## Intent: check deps for format and python3 cleanliness
+## Note:
+## yaml --py3k option no longer supported
+## -----------------------------------------------------------------------
+lint-yaml-modified:
+ $(HIDE)$(MAKE) --no-print-directory lint-yaml-install
+ yamllint -s $(YAML_FILES)
+
+## -----------------------------------------------------------------------
+## Intent:
+## -----------------------------------------------------------------------
+lint-yaml-install:
+ @echo
+ @echo "** -----------------------------------------------------------------------"
+ @echo "** yaml syntax checking"
+ @echo "** -----------------------------------------------------------------------"
+ yamllint --version
+ @echo
+
+## -----------------------------------------------------------------------
+## Intent: Display command usage
+## -----------------------------------------------------------------------
+help::
+ @echo ' lint-yaml Syntax check python using the yaml command'
+ ifdef VERBOSE
+ @echo ' lint-yaml-all yaml checking: exhaustive'
+ @echo ' lint-yaml-modified yaml checking: only locally modified'
+ endif
+
+$(if $(DEBUG),$(warning LEAVE))
+
+# [EOF]