ALL: build

SHELL := /bin/bash

VERSION=$(shell egrep -e 'Version\s+=' version.go | head -n 1 | cut -d '"' -f 2)
BUILD=$(shell git describe --always)
BUILD_DATE=$(shell date +"%Y-%m-%dT%H:%M:%S%z")
CURDIR=$(shell curdir)

# Inject the build version (commit hash) into the executable.
LDFLAGS := -ldflags "-X main.Build=$(BUILD) -X main.BuildDate=$(BUILD_DATE)"
LDFLAGS_W := -ldflags "-X main.Build=$(BUILD) -X main.BuildDate=$(BUILD_DATE) -H windowsgui"

# `make setup` to set up a new environment, pull dependencies, etc.
.PHONY: setup
setup: clean
	go get ./...

# `make build` to build the binary.
.PHONY: build
build:
	go build $(LDFLAGS) -o errorgen .

# `make install` to install the Go binaries to your GOPATH.
.PHONY: install
install:
	go install git.kirsle.net/apps/errorgen

# `make mingw` to cross-compile a Windows binary with mingw.
.PHONY: mingw
mingw:
	env CGO_ENABLED="1" CC="/usr/bin/x86_64-w64-mingw32-gcc" \
		GOOS="windows" CGO_LDFLAGS="-lmingw32 -lSDL2" CGO_CFLAGS="-D_REENTRANT" \
		go build $(LDFLAGS_W) -i -o bin/sketchymaze.exe cmd/doodle/main.go
	env CGO_ENABLED="1" CC="/usr/bin/x86_64-w64-mingw32-gcc" \
		GOOS="windows" CGO_LDFLAGS="-lmingw32 -lSDL2" CGO_CFLAGS="-D_REENTRANT" \
		go build $(LDFLAGS) -i -o bin/doodad.exe cmd/doodad/main.go

# `make mingw32` to cross-compile a Windows binary with mingw (32-bit).
.PHONY: mingw32
mingw32:
	env CGO_ENABLED="1" CC="/usr/bin/i686-w64-mingw32-gcc" \
		GOOS="windows" CGO_LDFLAGS="-lmingw32 -lSDL2" CGO_CFLAGS="-D_REENTRANT" \
		go build $(LDFLAGS_W) -i -o bin/sketchymaze.exe cmd/doodle/main.go
	env CGO_ENABLED="1" CC="/usr/bin/i686-w64-mingw32-gcc" \
		GOOS="windows" CGO_LDFLAGS="-lmingw32 -lSDL2" CGO_CFLAGS="-D_REENTRANT" \
		go build $(LDFLAGS) -i -o bin/doodad.exe cmd/doodad/main.go

# `make run` to run it from source.
.PHONY: run
run:
	go run .

# `make clean` to cleanup the repo.
.PHONY: clean
clean:
	rm -rf errorgen fyne-cross

# `make release` uses fyne-cross to produce builds for Linux and Windows.
.PHONY: release
release: clean
	fyne-cross windows -arch=*
	fyne-cross linux -arch=*

# `make release-sudo` uses sudo commands for release in case of permission errors.
.PHONY: release-sudo
release-sudo: clean
	sudo $(shell which fyne-cross) windows -arch=\*
	sudo $(shell which fyne-cross) linux -arch=\*
	sudo chown -R $(shell whoami) fyne-cross

# `make package` creates nice ZIP files for release after `make release`
.PHONY: package
package:
	cp -r README.md README.html *.png icons fyne-cross/bin/windows-386/
	cp -r README.md README.html *.png icons fyne-cross/bin/windows-amd64/
	cp -r README.md README.html *.png icons fyne-cross/bin/linux-386/
	cp -r README.md README.html *.png icons fyne-cross/bin/linux-amd64/

# `make pandoc` converts README.md into HTML for distribution.
.PHONY: pandoc
pandoc:
	pandoc -o README.html README.md