commit ce7f8dd15ad582899b3f694aeb0bb2097de9b94c
author Dan Willemsen <dwillemsen@google.com> Tue Jul 25 00:57:38 2017 -0700
committer Dan Willemsen <dwillemsen@google.com> Wed Jul 26 10:49:22 2017 -0700
tree 01cc848486e3074fb92c5cf0b43a589644462ef3
parent dc068b076221e5e5135d9edde8b909f732e0cef0

Run `uname -sm` once, don't use python for HOST_OS_EXTRA

This saves 20-50ms for `lunch` (~7-10%), and double that for every build
execution.

Test: Check HOST_OS_EXTRA on Linux & Mac
Change-Id: I863200b2287c8867f40606237895b1d3ad91e1b3

core/version_defaults.mk

diff --git a/core/version_defaults.mk b/core/version_defaults.mk
index 5a89fc9..3506fff 100644
--- a/core/version_defaults.mk
+++ b/core/version_defaults.mk
@@ -212,7 +212,7 @@
   BUILD_DATETIME := $(shell date +%s)
 endif
 
-ifneq (,$(findstring Darwin,$(shell uname -sm)))
+ifneq (,$(findstring Darwin,$(UNAME)))
 DATE := date -r $(BUILD_DATETIME)
 else
 DATE := date -d @$(BUILD_DATETIME)