Makefile

#
# Copyright (c) 2019 Red Hat, Inc.
#
# 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.
#

# Determine the operating system
ifeq ($(OS), Windows_NT)
	UNAME := windows
else
	UNAME := $(shell uname|tr '[:upper:]' '[:lower:]')
	ifeq ($(UNAME),darwin)
	else ifeq ($(UNAME),linux)
	else
        # Unsupported OS
        # this block uses spaces instead of tabs so that we can do proper indentation enforcement
        $(error This Makefile only supports Linux, macOS (Darwin), and Windows.)
	endif
endif

ifneq (, $(shell command -v shasum))
SHA256CMD := shasum -a 256 --check
else ifneq (, $(shell command -v sha256sum))
SHA256CMD := sha256sum --check
else
$(error "please install 'shasum' or 'sha256sum'")
endif

# Details of the metamodel used to check the model:
metamodel_version:=v0.0.60
metamodel_url:=https://github.com/openshift-online/ocm-api-metamodel/releases/download/$(metamodel_version)/metamodel-$(UNAME)-amd64
metamodel_sha1_url:=https://github.com/openshift-online/ocm-api-metamodel/releases/download/$(metamodel_version)/metamodel-$(UNAME)-amd64.sha256

.PHONY: check
check: metamodel
	./metamodel check --model=model

.PHONY: openapi
openapi: metamodel
	./metamodel generate openapi --model=model --output=openapi

metamodel:
	wget --progress=dot:giga --output-document="$@" "$(metamodel_url)"
	@# the following echo line prints the sha256sum of the downloaded binary, and then the filename,
	@# separated by TWO SPACES, do NOT change that
	echo "$$(wget --output-document="$@" -O- --quiet - $(metamodel_sha1_url) | awk '{print $$1}')  $@"|$(SHA256CMD)
	chmod +x "$@"

# Enforce indentation by tabs. License contains 2 spaces, so reject 3+.
lint:
	find -name '*.model' -print0 | xargs -0 sh -c '! egrep --with-filename --line-number "^(   |\t+ )" "$$@"'

.PHONY: clean
clean:
	rm -rf \
		metamodel \
		openapi \
		$(NULL)