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!bmakelib.timed

Times the execution of a given target and report the duration with milliseconds precision.

The following variables will be populated:

  • stdlib.vars.timed.begin-ts.TARGET_NAME (nanos)`
  • stdlib.vars.timed.end-ts.TARGET_NAME (nanos)`
  • stdlib.vars.timed.duration.TARGET_NAME (millis)`

Example 1

Makefile:

my-target :
	@sleep 2
	@echo 😴 I slept for 2 seconds.

Shell:

$ make my-target!bmakelib.timed
Using default value 'yes' for variable 'stdlib.conf.timed.SILENT'
😴 I slept for 2 seconds.
Target 'my-target' took 2009ms to complete.

Example 2

Makefile:

some-target :
	@sleep 2

my-target : stdlib.conf.timed.SILENT = yes
my-target : some-target!bmakelib.timed
	@echo ✅ Made some-target in $(stdlib.vars.timed.duration.some-target)ms 🙌

Shell:

$ make my-target
✅ Made some-target in 2008ms 🙌

Notes

See !timed below for a shorter name.

bmakelib.conf.timed.convenience-target

Whether to define the convenience target !timed. Set to 'no' before including bmakelib to disable.

!timed

Convenice target with a shorter and more intuitive name. It's a drop-in replacement for !bmakelib.timed.

Lets you write

some-target : other-target!timed

or

$ make my-target!timed

See also bmakelib.conf.timed.convenience-target.

bmakelib.conf.timed.SILENT

If set to yes, causes !bmakelib.timed to emit an info containing the duration of the target.