1# $NetBSD: cmdline.mk,v 1.7 2024/08/29 17:56:37 sjg Exp $
2#
3# Tests for command line parsing and related special variables.
4
5TMPBASE?= ${TMPDIR:U/tmp/uid${.MAKE.UID}}/cmdline
6SUB1=               a7b41170-53f8-4cc2-bc5c-e4c3dd93ec45    # just a random UUID
7SUB2=               6a8899d2-d227-4b55-9b6b-f3c8eeb83fd5    # just a random UUID
8MAKE_CMD= env TMPBASE=${TMPBASE}/${SUB1} ${.MAKE} -f ${MAKEFILE} -r
9DIR2=               ${TMPBASE}/${SUB2}
10DIR12=              ${TMPBASE}/${SUB1}/${SUB2}
11
12all: prepare-dirs
13all: makeobjdir-direct makeobjdir-indirect
14all: space-and-comment
15all: cleanup
16
17prepare-dirs:
18          @rm -rf ${DIR2} ${DIR12}
19          @mkdir -p ${DIR2} ${DIR12}
20
21# The .OBJDIR can be set via the MAKEOBJDIR command line variable.
22# It must be a command line variable; an environment variable would not work.
23makeobjdir-direct:
24          @echo $@:
25          @${MAKE_CMD} MAKEOBJDIR=${DIR2} show-objdir
26
27# The .OBJDIR can be set via the MAKEOBJDIR command line variable,
28# and expressions based on that variable can contain the usual modifiers.
29# Since the .OBJDIR=MAKEOBJDIR assignment happens very early,
30# the SUB2 variable in the modifier is not defined yet and is therefore empty.
31# The SUB1 in the resulting path comes from the environment variable TMPBASE,
32# see MAKE_CMD.
33makeobjdir-indirect:
34          @echo $@:
35          @${MAKE_CMD} MAKEOBJDIR='$${TMPBASE}/$${SUB2}' show-objdir
36
37show-objdir:
38          @echo $@: ${.OBJDIR:Q}
39
40
41# Variable assignments in the command line are handled differently from
42# variable assignments in makefiles.  In the command line, trailing whitespace
43# is preserved, and the '#' does not start a comment.  This is because the
44# low-level parsing from ParseRawLine does not take place.
45#
46# Preserving '#' and trailing whitespace has the benefit that when passing
47# such values to sub-makes via MAKEFLAGS, no special encoding is needed.
48# Leading whitespace in the variable value is discarded though, which makes
49# the behavior inconsistent.
50space-and-comment: .PHONY
51          @echo $@:
52
53          @env -i \
54              ${MAKE} -r -f /dev/null ' VAR= value # no comment ' -v VAR \
55          | sed 's,$$,$$,'
56
57          @env -i MAKEFLAGS="' VAR= value # no comment '" \
58              ${MAKE} -r -f /dev/null -v VAR \
59          | sed 's,$$,$$,'
60
61cleanup:
62          @rm -rf ${TMPBASE}
63