Added library helper functions. Docker is-tty, append semi-colon so bash will not complain about an incomplete line
Change-Id: I94d1b39910b8b437788438fd38931866763d0508
diff --git a/makefiles/consts.mk b/makefiles/consts.mk
index c1306ac..8961b3a 100644
--- a/makefiles/consts.mk
+++ b/makefiles/consts.mk
@@ -31,13 +31,21 @@
export quote-double := $(null)"$(null)#"
# [DEBUG] make {target} HIDE=
-HIDE ?= @
+HIDE ?= @
env-clean ?= /usr/bin/env --ignore-environment
xargs-n1 := xargs -0 -t -n1 --no-run-if-empty
xargs-n1-clean := $(env-clean) $(xargs-n1)
## -----------------------------------------------------------------------
+## Intent: NOP command for targets whose dependencies do all heavy lifting
+## -----------------------------------------------------------------------
+## usage: foo bar tans
+## <tab>$(nop-command)
+## -----------------------------------------------------------------------
+nop-cmd := :
+
+## -----------------------------------------------------------------------
## Default shell:
## o set -e enable error checking
## o set -u report undefined errors