138 lines
3.9 KiB
Makefile
138 lines
3.9 KiB
Makefile
# $NetBSD: varmod-localtime.mk,v 1.8 2021/01/19 05:26:34 rillig Exp $
|
|
#
|
|
# Tests for the :localtime variable modifier, which formats a timestamp
|
|
# using strftime(3) in local time.
|
|
|
|
.if ${TZ:Uno:NEurope/Berlin:NUTC-1} != "" # see unit-tests/Makefile
|
|
. error
|
|
.endif
|
|
|
|
# Test for the default time format, %c. Since the time always varies, it's
|
|
# only possible to check for the general format here. The names of the
|
|
# month and weekday are always in English, independent from the locale.
|
|
# Example: Thu Oct 29 18:56:41 2020
|
|
.if ${:U:localtime:tW:M??? ??? ?? ??\:??\:?? ????} == ""
|
|
. error
|
|
.endif
|
|
|
|
|
|
# modifier name too short, falling back to the SysV modifier.
|
|
.if ${%Y:L:localtim=1593536400} != "%Y"
|
|
. error
|
|
.endif
|
|
|
|
|
|
# 2020-07-01T00:00:00Z
|
|
.if ${%Y:L:localtime=1593536400} != "2020"
|
|
. error
|
|
.endif
|
|
|
|
|
|
# modifier name too long, falling back to the SysV modifier.
|
|
.if ${%Y:L:localtimer=1593536400} != "%Y"
|
|
. error
|
|
.endif
|
|
|
|
|
|
# If the modifier name is not matched exactly, fall back to the
|
|
# :from=to modifier.
|
|
.if ${localtime:L:local%=gm%} != "gmtime"
|
|
. error
|
|
.endif
|
|
|
|
|
|
# As of 2020-08-16, it is not possible to pass the seconds via a
|
|
# variable expression. This is because parsing of the :localtime
|
|
# modifier stops at the '$' and returns to ApplyModifiers.
|
|
#
|
|
# There, a colon would be skipped but not a dollar.
|
|
# Parsing therefore continues at the '$' of the ${:U159...}, looking
|
|
# for an ordinary variable modifier.
|
|
#
|
|
# At this point, the ${:U} is expanded and interpreted as a variable
|
|
# modifier, which results in the error message "Unknown modifier '1'".
|
|
#
|
|
# If ApplyModifier_Localtime were to pass its argument through
|
|
# ParseModifierPart, this would work.
|
|
.if ${%Y:L:localtime=${:U1593536400}} != "mtime=11593536400}"
|
|
. error
|
|
.endif
|
|
|
|
|
|
# Before var.c 1.631 from 2020-10-31 21:40:20, it was possible to pass
|
|
# negative time stamps to the :localtime modifier, resulting in dates before
|
|
# 1970. Going back 50 years in the past is not a practical use case for
|
|
# make. Therefore, since var.c 1.631, negative time stamps produce a
|
|
# parse error.
|
|
.if ${:L:localtime=-1} != ""
|
|
. error
|
|
.else
|
|
. error
|
|
.endif
|
|
|
|
|
|
# Spaces were allowed before var.c 1.631 from 2020-10-31 21:40:20, not
|
|
# because it would make sense but just as a side-effect from using strtoul.
|
|
.if ${:L:localtime= 1} != ""
|
|
. error
|
|
.endif
|
|
|
|
|
|
# 0 means now; this differs from GNode.mtime, where a 0 means nonexistent.
|
|
# Since "now" constantly changes, the strongest possible test is to match the
|
|
# resulting pattern.
|
|
.if !${:L:localtime=0:tW:M??? ??? ?? ??\:??\:?? 20??}
|
|
. error
|
|
.endif
|
|
|
|
|
|
.if ${:L:localtime=1} != "Thu Jan 1 01:00:01 1970"
|
|
. error
|
|
.endif
|
|
|
|
|
|
# INT32_MAX
|
|
.if ${:L:localtime=2147483647} != "Tue Jan 19 04:14:07 2038"
|
|
. error
|
|
.endif
|
|
|
|
|
|
.if ${:L:localtime=2147483648} == "Tue Jan 19 04:14:08 2038"
|
|
# All systems that have unsigned time_t or 64-bit time_t.
|
|
.elif ${:L:localtime=2147483648} == "Fri Dec 13 21:45:52 1901"
|
|
# FreeBSD-12.0-i386 still has 32-bit signed time_t, see
|
|
# sys/x86/include/_types.h, __LP64__.
|
|
#
|
|
# Linux on 32-bit systems may still have 32-bit signed time_t, see
|
|
# sysdeps/unix/sysv/linux/generic/bits/typesizes.h, __TIMESIZE.
|
|
.else
|
|
. error
|
|
.endif
|
|
|
|
|
|
# Integer overflow, at least before var.c 1.631 from 2020-10-31.
|
|
# Because this modifier is implemented using strtoul, the parsed time was
|
|
# ULONG_MAX, which got converted to -1. This resulted in a time stamp of
|
|
# the second before 1970.
|
|
#
|
|
# Since var.c 1.631, the overflow is detected and produces a parse error.
|
|
.if ${:L:localtime=10000000000000000000000000000000} != ""
|
|
. error
|
|
.else
|
|
. error
|
|
.endif
|
|
|
|
# Before var.c 1.631 from 2020-10-31, there was no error handling while
|
|
# parsing the :localtime modifier, thus no error message was printed. Parsing
|
|
# stopped after the '=', and the remaining string was parsed for more variable
|
|
# modifiers. Because of the unknown modifier 'e' from the 'error', the whole
|
|
# variable value was discarded and thus not printed.
|
|
.if ${:L:localtime=error} != ""
|
|
. error
|
|
.else
|
|
. error
|
|
.endif
|
|
|
|
|
|
all:
|