TEST?=$(shell go list ./...)
COUNT?=1
VET?=$(shell go list ./...)
ACC_TEST_BUILDERS?=all
ACC_TEST_PROVISIONERS?=all
# Get the current full sha from git
GITSHA:=$(shell git rev-parse HEAD)
# Get the current local branch name from git (if we can, this may be blank)
GITBRANCH:=$(shell git symbolic-ref --short HEAD 2>/dev/null)
GOOS=$(shell go env GOOS)
GOARCH=$(shell go env GOARCH)
GOPATH=$(shell go env GOPATH)

EXECUTABLE_FILES=$(shell find . -type f -executable | egrep -v '^\./(website/[vendor|tmp]|vendor/|\.git|bin/|scripts/|pkg/)' | egrep -v '.*(\.sh|\.bats|\.git)' | egrep -v './provisioner/(ansible|inspec)/test-fixtures/exit1')

# Get the git commit
GIT_DIRTY=$(shell test -n "`git status --porcelain`" && echo "+CHANGES" || true)
GIT_COMMIT=$(shell git rev-parse --short HEAD)
GIT_IMPORT=github.com/hashicorp/packer/version
UNAME_S := $(shell uname -s)
LDFLAGS=-s -w
GOLDFLAGS=-X $(GIT_IMPORT).GitCommit=$(GIT_COMMIT)$(GIT_DIRTY) $(LDFLAGS)

export GOLDFLAGS

.PHONY: bin checkversion ci ci-lint default install-build-deps install-gen-deps fmt fmt-docs fmt-examples generate install-lint-deps lint \
	releasebin test testacc testrace

default: install-build-deps install-gen-deps generate dev

ci: testrace ## Test in continuous integration

release: install-build-deps test releasebin package ## Build a release build

bin: install-build-deps ## Build debug/test build
	@echo "WARN: 'make bin' is for debug / test builds only. Use 'make release' for release builds."
	@GO111MODULE=auto sh -c "$(CURDIR)/scripts/build.sh"

releasebin: install-build-deps
	@grep 'const VersionPrerelease = "dev"' version/version.go > /dev/null ; if [ $$? -eq 0 ]; then \
		echo "ERROR: You must remove prerelease tags from version/version.go prior to release."; \
		exit 1; \
	fi
	@GO111MODULE=auto sh -c "$(CURDIR)/scripts/build.sh"

package:
	$(if $(VERSION),,@echo 'VERSION= needed to release; Use make package skip compilation'; exit 1)
	@sh -c "$(CURDIR)/scripts/dist.sh $(VERSION)"

install-build-deps: ## Install dependencies for bin build
	@go get github.com/mitchellh/gox

install-gen-deps: ## Install dependencies for code generation
	# to avoid having to tidy our go deps, we `go get` our binaries from a temp
	# dir. `go get` will change our deps and the following deps are not part of
	# out code dependencies; so a go mod tidy will remove them again. `go
	# install` seems to install the last tagged version and we want to install
	# master.
	@(cd $(TEMPDIR) && GO111MODULE=on go get github.com/mna/pigeon@master)
	@(cd $(TEMPDIR) && GO111MODULE=on go get github.com/alvaroloes/enumer@master)
	@go install ./cmd/struct-markdown
	@go install ./cmd/mapstructure-to-hcl2

install-lint-deps: ## Install linter dependencies
	# Pinning golangci-lint at v1.23.8 as --new-from-rev seems to work properly; the latest 1.24.0 has caused issues with memory consumption
	@echo "==> Updating linter dependencies..."
	@curl -sSfL -q https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(GOPATH)/bin v1.23.8

dev: ## Build and install a development build
	@grep 'const VersionPrerelease = ""' version/version.go > /dev/null ; if [ $$? -eq 0 ]; then \
		echo "ERROR: You must add prerelease tags to version/version.go prior to making a dev build."; \
		exit 1; \
	fi
	@mkdir -p pkg/$(GOOS)_$(GOARCH)
	@mkdir -p bin
	@go install -ldflags '$(GOLDFLAGS)'
	@cp $(GOPATH)/bin/packer bin/packer
	@cp $(GOPATH)/bin/packer pkg/$(GOOS)_$(GOARCH)

lint: install-lint-deps ## Lint Go code
	@if [ ! -z  $(PKG_NAME) ]; then \
		echo "golangci-lint run ./$(PKG_NAME)/..."; \
		golangci-lint run ./$(PKG_NAME)/...; \
	else \
		echo "golangci-lint run ./..."; \
		golangci-lint run ./...; \
	fi

ci-lint: install-lint-deps ## On ci only lint newly added Go source files
	@echo "==> Running linter on newly added Go source files..."
	GO111MODULE=on golangci-lint run --new-from-rev=$(shell git merge-base origin/master HEAD) ./...

fmt: ## Format Go code
	@go fmt ./...

fmt-check: fmt ## Check go code formatting
	@echo "==> Checking that code complies with go fmt requirements..."
	@git diff --exit-code; if [ $$? -eq 1 ]; then \
		echo "Found files that are not fmt'ed."; \
		echo "You can use the command: \`make fmt\` to reformat code."; \
		exit 1; \
	fi

mode-check: ## Check that only certain files are executable
	@echo "==> Checking that only certain files are executable..."
	@if [ ! -z "$(EXECUTABLE_FILES)" ]; then \
		echo "These files should not be executable or they must be white listed in the Makefile:"; \
		echo "$(EXECUTABLE_FILES)" | xargs -n1; \
		exit 1; \
	else \
		echo "Check passed."; \
	fi
fmt-docs:
	@find ./website/pages/docs -name "*.md" -exec pandoc --wrap auto --columns 79 --atx-headers -s -f "markdown_github+yaml_metadata_block" -t "markdown_github+yaml_metadata_block" {} -o {} \;

# Install js-beautify with npm install -g js-beautify
fmt-examples:
	find examples -name *.json | xargs js-beautify -r -s 2 -n -eol "\n"

# generate runs `go generate` to build the dynamically generated
# source files.
generate: install-gen-deps ## Generate dynamically generated code
	@echo "==> removing autogenerated markdown..."
	@find website/pages/ -type f | xargs grep -l '^<!-- Code generated' | xargs rm -f
	@echo "==> removing autogenerated code..."
	@find post-processor common helper template builder provisioner -type f | xargs grep -l '^// Code generated' | xargs rm -f
	go generate ./...
	go fmt common/bootcommand/boot_command.go
	go run ./cmd/generate-fixer-deprecations

generate-check: generate ## Check go code generation is on par
	@echo "==> Checking that auto-generated code is not changed..."
	@git diff --exit-code; if [ $$? -eq 1 ]; then \
		echo "Found diffs in go generated code."; \
		echo "You can use the command: \`make generate\` to reformat code."; \
		exit 1; \
	fi

test: mode-check vet ## Run unit tests
	@go test -count $(COUNT) $(TEST) $(TESTARGS) -timeout=3m

# acctest runs provisioners acceptance tests
provisioners-acctest: install-build-deps generate
	ACC_TEST_BUILDERS=$(ACC_TEST_BUILDERS) ACC_TEST_PROVISIONERS=$(ACC_TEST_PROVISIONERS) go test ./provisioner/... -timeout=1h

# testacc runs acceptance tests
testacc: install-build-deps generate ## Run acceptance tests
	@echo "WARN: Acceptance tests will take a long time to run and may cost money. Ctrl-C if you want to cancel."
	PACKER_ACC=1 go test -count $(COUNT) -v $(TEST) $(TESTARGS) -timeout=120m

testrace: mode-check vet ## Test with race detection enabled
	@GO111MODULE=off go test -count $(COUNT) -race $(TEST) $(TESTARGS) -timeout=3m -p=8

# Runs code coverage and open a html page with report
cover:
	go test -count $(COUNT) $(TEST) $(TESTARGS) -timeout=3m -coverprofile=coverage.out
	go tool cover -html=coverage.out
	rm coverage.out

check-vendor-vs-mod: ## Check that go modules and vendored code are on par
	@GO111MODULE=on go mod vendor
	@git diff --exit-code --ignore-space-change --ignore-space-at-eol -- vendor ; if [ $$? -eq 1 ]; then \
		echo "ERROR: vendor dir is not on par with go modules definition." && \
		exit 1; \
	fi

vet: ## Vet Go code
	@go vet $(VET)  ; if [ $$? -eq 1 ]; then \
		echo "ERROR: Vet found problems in the code."; \
		exit 1; \
	fi

help:
	@grep -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | sort | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}'