#!/usr/bin/make -f

export DH_GOLANG_EXCLUDES := script
export DH_GOLANG_INSTALL_ALL := 1

DATE_FMT = %Y-%m-%d
ifdef SOURCE_DATE_EPOCH
  BUILD_DATE ?= $(shell date -u -d "@$(SOURCE_DATE_EPOCH)" "+$(DATE_FMT)" 2>/dev/null || date -u -r "$(SOURCE_DATE_EPOCH)" "+$(DATE_FMT)" 2>/dev/null || date -u "+$(DATE_FMT)")
else
  BUILD_DATE ?= $(shell date -u "+$(DATE_FMT)")
endif

DEBIAN_VERSION := $(shell dpkg-parsechangelog --show-field Version)
BUILD_VERSION := $(shell echo "$(DEBIAN_VERSION)" | sed 's/\(+dfsg[0-9]*\)\?-.*//')
VENDOR := $(shell . /etc/os-release; echo $$ID | sed 's/^./\u&/')
BUILD_DATE += $(VENDOR) $(DEBIAN_VERSION)

LDFLAGS := -ldflags \
	'-X "github.com/cli/cli/v2/internal/build.Date=$(BUILD_DATE)" \
	 -X "github.com/cli/cli/v2/internal/build.Version=$(BUILD_VERSION)"'

all:
	@echo $(LDFLAGS)
%:
	dh $@ --builddirectory=_build --buildsystem=golang

execute_before_dh_auto_configure:
	mkdir -p _build/src/golang.org/x
	ln -s $(CURDIR)/debian/go/src/github.com/cli/crypto _build/src/golang.org/x/crypto
	mkdir -p _build/src/google.golang.org
	ln -s $(CURDIR)/debian/go/src/google.golang.org/grpc _build/src/google.golang.org/grpc
	mkdir -p _build/src/github.com/golang
	ln -s $(CURDIR)/debian/go/src/github.com/golang/protobuf _build/src/github.com/golang/protobuf

override_dh_auto_build:
	@command -V go
	@go version
	dh_auto_build -- $(LDFLAGS)
	_build/bin/gh --version
	mkdir -p _build/completion/bash _build/completion/zsh
	_build/bin/gh completion -s bash > _build/completion/bash/gh
	_build/bin/gh completion -s zsh > _build/completion/zsh/_gh
	_build/bin/gen-docs --man-page --doc-path _build/share/man/man1/
	$(RM) _build/bin/gen-docs

override_dh_auto_install:
	dh_auto_install -- --no-source