freebsd-src/unit-tests/varcmd.mk
Simon J. Gerraty ee914ef902 Import bmake-20210621
Lots more unit tests and code cleanup

Relevant changes from ChangeLog

	o job.c: Print -de error information when running multiple jobs
	o var.c: only report error for unmatched regex subexpression
	when linting (-dL) since we cannot tell when an unmatched
	subexpression is an expected result.
	reduce memory allocations in the modifiers ':D' and ':U'
	reduce memory allocation and strlen calls in modifier ':from=to'
	in the ':Q' modifier, only allocate memory if necessary
	improve performance for LazyBuf
	reduce debug logging and memory allocation for ${:U...}
	reduce verbosity of the -dv debug logging for standard cases
	fix double varname expansion in the variable modifier '::='
	o var.c: avoid evaluating many modifiers in parse only mode
	in strict mode (-dL) many variable references are parsed twice,
	the first time just to report parse errors early, so we want to
	avoid side effects and wasted effort to the extent possible.
2021-06-25 11:16:24 -07:00

71 lines
1.5 KiB
Makefile

# $NetBSD: varcmd.mk,v 1.6 2021/02/16 19:43:09 rillig Exp $
#
# Test behaviour of recursive make and vars set on command line.
#
# FIXME: The purpose of this test is unclear. The test uses six levels of
# sub-makes, which makes it incredibly hard to understand. There must be at
# least an introductory explanation about what _should_ happen here.
# The variable names are terrible, as well as their values.
#
# This test produces different results if the large block with the condition
# "scope == SCOPE_GLOBAL" in Var_SetWithFlags is removed. This test should
# be rewritten to make it clear why there is a difference and why this is
# actually intended. Removing that large block of code makes only this test
# and vardebug.mk fail, which is not enough.
FU= fu
FOO?= foo
.if !empty(.TARGETS)
TAG= ${.TARGETS}
.endif
TAG?= default
all: one
show:
@echo "${TAG} FU=<v>${FU}</v> FOO=<v>${FOO}</v> VAR=<v>${VAR}</v>"
one: show
@${.MAKE} -f ${MAKEFILE} FU=bar FOO+=goo two
two: show
@${.MAKE} -f ${MAKEFILE} three
three: show
@${.MAKE} -f ${MAKEFILE} four
.ifmake two
# this should not work
FU+= oops
FOO+= oops
_FU:= ${FU}
_FOO:= ${FOO}
two: immutable
immutable:
@echo "$@ FU='${_FU}'"
@echo "$@ FOO='${_FOO}'"
.endif
.ifmake four
VAR=Internal
.MAKEOVERRIDES+= VAR
.endif
four: show
@${.MAKE} -f ${MAKEFILE} five
M= x
V.y= is y
V.x= is x
V:= ${V.$M}
K:= ${V}
show-v:
@echo '${TAG} v=${V} k=${K}'
five: show show-v
@${.MAKE} -f ${MAKEFILE} M=y six
six: show-v
@${.MAKE} -f ${MAKEFILE} V=override show-v