Updating subprojects in Makefiles

Makefile

# Preferred way to deal with subprojects, because we want to avoid submodules.
# This way we do everything explicitly, and can verify everything in commits.
# We need to always keep master in good condition.

TMP = ./tmp
PROJECT_TEMP = $(TMP)/FramerSketch
PROJECT_GIT = git@github.com:motif/FramerSketch2.git

update%project:
	@mkdir -p $(TMP)
	@if ! cd $(PROJECT_TEMP)/.git; then git clone $(PROJECT_GIT) $(PROJECT_TEMP); fi
	cd $(PROJECT_TEMP); git reset --hard; git pull
	cd $(PROJECT_TEMP); make build
	# Copy over any files, for example
	rm -rf ExtraResources/project
	cp -rf $(PROJECT_TEMP)/build ExtraResources/project