"confirm" action for your Makefile

confirm.Makefile

# To use the "confirm" target inside another target,
# use the " if $(MAKE) -s confirm ; " syntax.
mycommand:
	@if $(MAKE) -s confirm ; then \
    	     execute_your_command_here ; \
	fi
.PHONY: mycommand

# The CI environment variable can be set to a non-empty string,
# it'll bypass this command that will "return true", as a "yes" answer.
confirm:
	@if [[ -z "$(CI)" ]]; then \
		REPLY="" ; \
		read -p "⚠ Are you sure? [y/n] > " -r ; \
		if [[ ! $$REPLY =~ ^[Yy]$$ ]]; then \
			printf $(_ERROR) "KO" "Stopping" ; \
			exit 1 ; \
		else \
			printf $(_TITLE) "OK" "Continuing" ; \
			exit 0; \
		fi \
	fi
.PHONY: confirm
_WARN := "\033[33m[%s]\033[0m %s\n"  # Yellow text for "printf"
_TITLE := "\033[32m[%s]\033[0m %s\n" # Green text for "printf"
_ERROR := "\033[31m[%s]\033[0m %s\n" # Red text for "printf"

# Notes:
#
# As we're using an "if" statement,
# we need to use ";" and "\" at the end of lines,
# else make would consider each line to be a separate command to call,
# which doesn't work.
# Using ";" and "\" at the end of lines helps make
# interpret this "if" as one single statement/command.
#
# You can replace ";" with "&&" if you need to stop the
# execution process before running next commands.
#
# 

Hi,

If anyone is interested, yellow WARNINGS are below:

_WARN := "\033[33m[%s]\033[0m %s\n" # Yellow text for "printf"

_TITLE := "\033[32m[%s]\033[0m %s\n" # Green text for "printf"
_ERROR := "\033[31m[%s]\033[0m %s\n" # Red text for "printf"

Thanks @urmichm for your suggestion, I added it to the gist! 👍

You can also do this entirely in make.
Here is what I have:

define util_confirm_code
$(eval confirm := $(shell read -p "⚠ Are you sure? [y/n] > " -r; echo $$REPLY))
$(if $(filter y Y,$(confirm)),1)
endef
#NOTE: We must call this one to remove \n or any other spaces
util_confirm_ask = $(strip $(util_confirm_code))

mycommand:
	$(if $(util_confirm_ask),
		echo "User said yes",
		echo "User said no"
	)

We can remove the middle variable util_confirm_ask by condencing the code in util_confirm_code but it will make it less readable