Module Name: src
Committed By: rillig
Date: Sat Oct 3 09:10:26 UTC 2020
Modified Files:
src/usr.bin/make/unit-tests: opt-debug-file.mk
Log Message:
make(1): add test for the -dF option
To generate a diff of this commit:
cvs rdiff -u -r1.1 -r1.2 src/usr.bin/make/unit-tests/opt-debug-file.mk
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/usr.bin/make/unit-tests/opt-debug-file.mk
diff -u src/usr.bin/make/unit-tests/opt-debug-file.mk:1.1 src/usr.bin/make/unit-tests/opt-debug-file.mk:1.2
--- src/usr.bin/make/unit-tests/opt-debug-file.mk:1.1 Sat Sep 5 06:20:51 2020
+++ src/usr.bin/make/unit-tests/opt-debug-file.mk Sat Oct 3 09:10:26 2020
@@ -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:
@:;
