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make(1): add test for the -dF option

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This commit is contained in:
rillig 2020-10-03 09:10:26 +00:00
parent cd39b7362f
commit 2090dc1c6a
1 changed files with 30 additions and 2 deletions
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32
usr.bin/make/unit-tests/opt-debug-file.mk
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@ -1,9 +1,37 @@
# $NetBSD: opt-debug-file.mk,v 1.1 2020/09/05 06:20:51 rillig Exp $
# $NetBSD: opt-debug-file.mk,v 1.2 2020/10/03 09:10:26 rillig Exp $
#
# Tests for the -dF command line option, which redirects the debug log
# to a file instead of writing it to stderr.
# TODO: Implementation
# Enable debug logging for variable assignments and evaluation (-dv)
# and redirect the debug logging to the given file.
.MAKEFLAGS: -dvFopt-debug-file.debuglog
# This output goes to the debug log file.
VAR= value ${:Uexpanded}
# Hide the logging output for the remaining actions.
# As of 2020-10-03, it is not possible to disable debug logging again.
.MAKEFLAGS: -dF/dev/null
# Make sure that the debug logging file contains some logging.
DEBUG_OUTPUT:= ${:!cat opt-debug-file.debuglog!}
# Grmbl. Because of the := operator in the above line, the variable
# value contains ${:Uexpanded}. This variable expression is expanded
# upon further processing. Therefore, don't read from untrusted input.
#.MAKEFLAGS: -dc -dFstderr
.if !${DEBUG_OUTPUT:tW:M*VAR = value expanded*}
. error ${DEBUG_OUTPUT}
.endif
# To get the unexpanded text that was actually written to the debug log
# file, the content of that log file must not be stored in a variable.
# XXX: In the :M modifier, a dollar is escaped as '$$', not '\$'.
.if !${:!cat opt-debug-file.debuglog!:tW:M*VAR = value $${:Uexpanded}*}
. error
.endif
_!= rm opt-debug-file.debuglog
all:
@:;