Makefile

.PHONY: all checkout docs examples tag test update

TF_DOCS := $(shell which terraform-docs 2> /dev/null)
TF_EXAMPLES := $(shell which terraform-examples 2> /dev/null)
TF_CMD := terraform
PLATFORM := AWS
PROVIDER := aws
LATEST_REF := $(shell curl --silent https://api.github.com/repos/coreos/tectonic-installer/git/refs/heads/master | jq -r '.object.sha')
TAG ?= $(shell curl --silent https://api.github.com/repos/coreos/tectonic-installer/git/refs/tags | jq -r '.[-1].ref' | sed 's|refs/tags/||')

all: update

define terraform-docs
	$(if $(TF_DOCS),,$(error "terraform-docs revision >= a8b59f8 is required (https://github.com/segmentio/terraform-docs)"))

	@echo '<!-- DO NOT EDIT. THIS FILE IS GENERATED BY THE MAKEFILE. -->' > $1
	@echo '# Terraform variables' >> $1
	@echo $2 >> $1
	terraform-docs --no-required markdown $3 $4 $5 $6 >> $1
endef

define terraform-examples
	$(if $(TF_EXAMPLES),,$(error "terraform-examples revision >= 83d7ad6 is required (https://github.com/s-urbaniak/terraform-examples)"))

	@echo '# DO NOT EDIT. THIS FILE IS GENERATED BY THE MAKEFILE.' > $1
	@echo 'module "kubernetes" {' >> $1
	@echo '  source = "coreos/kubernetes/$(PROVIDER)"' >> $1
	terraform-examples $2 $3 $4 $5 >> $1
	@echo '}' >> $1
	@terraform fmt $1
endef

docs:
	$(call terraform-docs, variables.md, \
			'This document gives an overview of variables used in the $(PLATFORM) platform of the Tectonic SDK.', \
			config.tf, variables.tf)

examples:
	@mkdir -p examples
	$(call terraform-examples, \
			examples/kubernetes.tf, \
			config.tf, \
			variables.tf)

# This target is used by the GitHub PR checker to validate canonical syntax on all files.
test:
	$(eval FMT_ERR := $(shell terraform fmt -list -write=false .))
	@if [ "$(FMT_ERR)" != "" ]; then echo "misformatted files (run 'terraform fmt .' to fix):" $(FMT_ERR); exit 1; fi

	@if $(MAKE) docs && ! git diff --exit-code; then echo "outdated docs (run 'make docs' to fix)"; exit 1; fi
	@if $(MAKE) examples && ! git diff --exit-code; then echo "outdated examples (run 'make examples' to fix)"; exit 1; fi

build/%:
	@rm -f *.tf
	@curl -L https://github.com/coreos/tectonic-installer/archive/$(@F).tar.gz -O
	@tar -xzf $(@F).tar.gz --strip=3 tectonic-installer-$(@F)/platforms/$(shell echo $(PLATFORM) | tr A-Z a-z)
	@tar -xzf $(@F).tar.gz --strip=1 tectonic-installer-$(@F)/config.tf
	@rm $(@F).tar.gz
	@sed -i 's|source\s\+=\s"[\./]\+\(/modules/.\+\)"|source = "github.com/coreos/tectonic-installer/\1?ref=$(@F)"|' *.tf
	@terraform fmt .

orphan/%:
	@git checkout --orphan $(@F)

checkout:
	@git checkout master

ref/%: | checkout orphan/% build/%;

update: | checkout build/$(LATEST_REF) docs examples
	@git add .
	@git commit -m "bump master to: $(LATEST_REF)"

tag: | ref/$(TAG) docs examples
	@git add .
	@git commit -m "$(TAG)"
	@git tag -s -m "$(TAG)" "$(TAG)"