Makefile statsd instrumentation

Makefile

STATSD_HOST ?= graphite.example.com
STATSD_PREFIX := development.makefile
# Start timer
# $(call start,test.counter)
define start
	-@perl -MTime::HiRes=time -we"open my \$$f, '>', '._timing_$(1)'; print \$$f int time * 1000; close \$$f"
endef
# End timer, and send metric
# $(call end,test.counter)
define end
	-@printf "$(STATSD_PREFIX).%s:%d|ms\n" $(1) $$(perl -MTime::HiRes=time -we"open my \$$f, '<', '._timing_$(1)'; print int time * 1000 - <\$$f>") | nc -w 0 -u $(STATSD_HOST) 8125
	-@rm ._timing_$(1)
endef
# Send counter metric
# $(call count,test.counter)
define count
	-@printf "$(STATSD_PREFIX).%s:1|c\n" $(1) | nc -w 0 -u $(STATSD_HOST) 8125
endef