add CI files

add makefile

add fpm conf

Makefile

@@ -0,0 +1,56 @@
+CGO_ENABLED = 0
+DIR          = ./build
+
+GO_ARCH_AMD	 = amd64
+GO_ARCH_ARM  = arm64
+
+GO_OS_WIN    = windows
+GO_OS_DARWIN = darwin
+GO_OS_LINUX	 = linux
+
+EXECUTABLE   = i3-wallpaper-manager
+
+BIN_LINUX_AMD64  = $(DIR)/$(EXECUTABLE)-linux-$(GO_ARCH_AMD)
+BIN_LINUX_ARM64  = $(DIR)/$(EXECUTABLE)-linux-$(GO_ARCH_ARM)
+
+CC       = go build
+CFLAGS   = -trimpath
+LDFLAGS  = all=-w -s
+GCFLAGS  = all=
+ASMFLAGS = all=
+
+.PHONY: all
+all: linux
+
+.PHONY: linux
+linux: $(BIN_LINUX_AMD64) $(BIN_LINUX_ARM64)
+	chmod +x $(BIN_LINUX_ARM64)
+	chmod +x $(BIN_LINUX_AMD64)
+
+.PHONY: $(BIN_LINUX_AMD64)
+$(BIN_LINUX_AMD64):
+	GO111MODULE=$(GOMOD) \
+	GOARCH=$(GO_ARCH_AMD) \
+	GOOS=$(GO_OS_LINUX) \
+	CGO_ENABLED=$(CGO_ENABLED) \
+	$(CC) $(CFLAGS) -ldflags="$(LDFLAGS)" -gcflags="$(GCFLAGS)" -asmflags="$(ASMFLAGS)" \
+	-o $(BIN_LINUX_AMD64) .
+
+.PHONY: $(BIN_LINUX_ARM64)
+$(BIN_LINUX_ARM64):
+	GO111MODULE=$(GOMOD) \
+	GOARCH=$(GO_ARCH_ARM) \
+	GOOS=$(GO_OS_LINUX) \
+	CGO_ENABLED=$(CGO_ENABLED) \
+	$(CC) $(CFLAGS) -ldflags="$(LDFLAGS)" -gcflags="$(GCFLAGS)" -asmflags="$(ASMFLAGS)" \
+	-o $(BIN_LINUX_ARM64) .
+
+.PHONY: clean
+clean:
+	rm -rf $(DIR)/*
+
+tool-gofumpt:
+	which golangci-lint > /dev/null 2>&1 || go install mvdan.cc/gofumpt@latest
+
+fmt: tool-gofumpt
+	gofumpt -w --extra .