TS=$(shell date -u '+%Y/%m/%d %H:%M:%S') all: test packages: @echo $(TS) Installing Go packages ... @go get -u github.com/andygeiss/assert @go get -u github.com/andygeiss/esp32-controller @go get -u github.com/andygeiss/log @echo $(TS) Done. test: @echo $(TS) Testing ... @go test -v ./... @echo $(TS) Done.