build: add docker build to makefile

Signed-off-by: rare-magma <[email protected]>

Makefile

@@ -38,6 +38,10 @@ build-static:
 	mkdir -p dist
 	GOFLAGS="$(GOFLAGS_STATIC)" CGO_ENABLED=0 go build -ldflags="$(LDFLAGS)" -o dist/$(NAME) $(PACKAGE)/$(CMD_GDU)
 
+build-docker:
+	@echo "Version: " $(VERSION)
+	docker build . --tag ghcr.io/dundee/gdu:$(VERSION)
+
 build-all:
 	@echo "Version: " $(VERSION)
 	-mkdir dist
@@ -70,6 +74,8 @@ build-all:
 	CGO_ENABLED=0 GOOS=linux GOARCH=arm64 go build -ldflags="$(LDFLAGS)" -o dist/gdu_linux_arm64 $(PACKAGE)/$(CMD_GDU)
 	CGO_ENABLED=0 GOOS=android GOARCH=arm64 go build -ldflags="$(LDFLAGS)" -o dist/gdu_android_arm64 $(PACKAGE)/$(CMD_GDU)
 
+	docker build . --tag ghcr.io/dundee/gdu:$(VERSION)
+
 	cd dist; for file in gdu_linux_* gdu_darwin_* gdu_netbsd_* gdu_openbsd_* gdu_freebsd_* gdu_android_*; do tar czf $$file.tgz $$file; done
 	cd dist; for file in gdu_windows_*; do zip $$file.zip $$file; done
 
@@ -137,6 +143,7 @@ shasums:
 	cd dist; gpg --sign --armor --detach-sign sha256sums.txt
 
 release:
+	docker push ghcr.io/dundee/gdu:$(VERSION)
 	gh release create -t "gdu $(VERSION)" $(VERSION) ./dist/*
 
 install-dev-dependencies: