BINDIR     := $(CURDIR)/bin
DIST_DIRS  := find * -type d -exec
TARGETS    := darwin/amd64 linux/amd64 linux/386 linux/arm linux/arm64 linux/ppc64le windows/amd64
BINNAME    ?= helm

GOPATH        = $(shell go env GOPATH)
DEP           = $(GOPATH)/bin/dep
GOX           = $(GOPATH)/bin/gox
GOIMPORTS     = $(GOPATH)/bin/goimports
GOLANGCI_LINT = $(GOPATH)/bin/golangci-lint

ACCEPTANCE_DIR:=$(GOPATH)/src/helm.sh/acceptance-testing
# To specify the subset of acceptance tests to run. '.' means all tests
ACCEPTANCE_RUN_TESTS=.

# go option
PKG        := ./...
TAGS       :=
TESTS      := .
TESTFLAGS  :=
LDFLAGS    := -w -s
GOFLAGS    :=
SRC        := $(shell find . -type f -name '*.go' -print)

# Required for globs to work correctly
SHELL      = /bin/bash

GIT_COMMIT = $(shell git rev-parse HEAD)
GIT_SHA    = $(shell git rev-parse --short HEAD)
GIT_TAG    = $(shell git describe --tags --abbrev=0 --exact-match 2>/dev/null)
GIT_DIRTY  = $(shell test -n "`git status --porcelain`" && echo "dirty" || echo "clean")

ifdef VERSION
	BINARY_VERSION = $(VERSION)
endif
BINARY_VERSION ?= ${GIT_TAG}

# Only set Version if building a tag or VERSION is set
ifneq ($(BINARY_VERSION),)
	LDFLAGS += -X helm.sh/helm/v3/internal/version.version=${BINARY_VERSION}
endif

# Clear the "unreleased" string in BuildMetadata
ifneq ($(GIT_TAG),)
	LDFLAGS += -X helm.sh/helm/v3/internal/version.metadata=
endif
LDFLAGS += -X helm.sh/helm/v3/internal/version.gitCommit=${GIT_COMMIT}
LDFLAGS += -X helm.sh/helm/v3/internal/version.gitTreeState=${GIT_DIRTY}

.PHONY: all
all: build

# ------------------------------------------------------------------------------
#  build

.PHONY: build
build: $(BINDIR)/$(BINNAME)

$(BINDIR)/$(BINNAME): $(SRC)
	GO111MODULE=on go build $(GOFLAGS) -tags '$(TAGS)' -ldflags '$(LDFLAGS)' -o $(BINDIR)/$(BINNAME) ./cmd/helm

# ------------------------------------------------------------------------------
#  test

.PHONY: test
test: build
test: TESTFLAGS += -race -v
test: test-style
test: test-unit

.PHONY: test-unit
test-unit:
	@echo
	@echo "==> Running unit tests <=="
	GO111MODULE=on go test $(GOFLAGS) -run $(TESTS) $(PKG) $(TESTFLAGS)

.PHONY: test-coverage
test-coverage:
	@echo
	@echo "==> Running unit tests with coverage <=="
	@ ./scripts/coverage.sh

.PHONY: test-style
test-style: $(GOLANGCI_LINT)
	GO111MODULE=on $(GOLANGCI_LINT) run
	@scripts/validate-license.sh

.PHONY: test-acceptance
test-acceptance: TARGETS = linux/amd64
test-acceptance: build build-cross
	@if [ -d "${ACCEPTANCE_DIR}" ]; then \
		cd ${ACCEPTANCE_DIR} && \
			ROBOT_RUN_TESTS=$(ACCEPTANCE_RUN_TESTS) ROBOT_HELM_PATH=$(BINDIR) make acceptance; \
	else \
		echo "You must clone the acceptance_testing repo under $(ACCEPTANCE_DIR)"; \
		echo "You can find the acceptance_testing repo at https://github.com/helm/acceptance-testing"; \
	fi

.PHONY: test-acceptance-completion
test-acceptance-completion: ACCEPTANCE_RUN_TESTS = shells.robot
test-acceptance-completion: test-acceptance

.PHONY: verify-docs
verify-docs: build
	@scripts/verify-docs.sh

.PHONY: coverage
coverage:
	@scripts/coverage.sh

.PHONY: format
format: $(GOIMPORTS)
	GO111MODULE=on go list -f '{{.Dir}}' ./... | xargs $(GOIMPORTS) -w -local helm.sh/helm

# ------------------------------------------------------------------------------
#  dependencies

# If go get is run from inside the project directory it will add the dependencies
# to the go.mod file. To avoid that we change to a directory without a go.mod file
# when downloading the following dependencies

$(GOX):
	(cd /; GO111MODULE=on go get -u github.com/mitchellh/gox)

$(GOLANGCI_LINT):
	(cd /; GO111MODULE=on go get -u github.com/golangci/golangci-lint/cmd/golangci-lint)

$(GOIMPORTS):
	(cd /; GO111MODULE=on go get -u golang.org/x/tools/cmd/goimports)

# ------------------------------------------------------------------------------
#  release

.PHONY: build-cross
build-cross: LDFLAGS += -extldflags "-static"
build-cross: $(GOX)
	GO111MODULE=on CGO_ENABLED=0 $(GOX) -parallel=3 -output="_dist/{{.OS}}-{{.Arch}}/$(BINNAME)" -osarch='$(TARGETS)' $(GOFLAGS) -tags '$(TAGS)' -ldflags '$(LDFLAGS)' ./cmd/helm

.PHONY: dist
dist:
	( \
		cd _dist && \
		$(DIST_DIRS) cp ../LICENSE {} \; && \
		$(DIST_DIRS) cp ../README.md {} \; && \
		$(DIST_DIRS) tar -zcf helm-${VERSION}-{}.tar.gz {} \; && \
		$(DIST_DIRS) zip -r helm-${VERSION}-{}.zip {} \; \
	)

.PHONY: checksum
checksum:
	for f in _dist/*.{gz,zip} ; do \
		shasum -a 256 "$${f}"  | awk '{print $$1}' > "$${f}.sha256" ; \
	done

# ------------------------------------------------------------------------------

.PHONY: docs
docs: build
	@scripts/update-docs.sh

.PHONY: clean
clean:
	@rm -rf $(BINDIR) ./_dist

.PHONY: info
info:
	 @echo "Version:           ${VERSION}"
	 @echo "Git Tag:           ${GIT_TAG}"
	 @echo "Git Commit:        ${GIT_COMMIT}"
	 @echo "Git Tree State:    ${GIT_DIRTY}"