1# $NetBSD: varmod-localtime.mk,v 1.7 2020/12/22 07:22:39 rillig Exp $ 2# 3# Tests for the :localtime variable modifier, which formats a timestamp 4# using strftime(3) in local time. 5 6.if ${TZ} != "Europe/Berlin" # see unit-tests/Makefile 7. error 8.endif 9 10# Test for the default time format, %c. Since the time always varies, it's 11# only possible to check for the general format here. The names of the 12# month and weekday are always in English, independent from the locale. 13# Example: Thu Oct 29 18:56:41 2020 14.if ${:U:localtime:tW:M??? ??? ?? ??\:??\:?? ????} == "" 15. error 16.endif 17 18 19# modifier name too short, falling back to the SysV modifier. 20.if ${%Y:L:localtim=1593536400} != "%Y" 21. error 22.endif 23 24 25# 2020-07-01T00:00:00Z 26.if ${%Y:L:localtime=1593536400} != "2020" 27. error 28.endif 29 30 31# modifier name too long, falling back to the SysV modifier. 32.if ${%Y:L:localtimer=1593536400} != "%Y" 33. error 34.endif 35 36 37# If the modifier name is not matched exactly, fall back to the 38# :from=to modifier. 39.if ${gmtime:L:gm%=local%} != "localtime" 40. error 41.endif 42 43 44# As of 2020-08-16, it is not possible to pass the seconds via a 45# variable expression. This is because parsing of the :localtime 46# modifier stops at the '$' and returns to ApplyModifiers. 47# 48# There, a colon would be skipped but not a dollar. 49# Parsing therefore continues at the '$' of the ${:U159...}, looking 50# for an ordinary variable modifier. 51# 52# At this point, the ${:U} is expanded and interpreted as a variable 53# modifier, which results in the error message "Unknown modifier '1'". 54# 55# If ApplyModifier_Localtime were to pass its argument through 56# ParseModifierPart, this would work. 57# 58# XXX: Where does the empty line 4 in varmod-localtime.exp come from? 59# TODO: Remove the \n from "Invalid time value: %s\n" in var.c. 60.if ${%Y:L:localtime=${:U1593536400}} != "mtime=11593536400}" 61. error 62.endif 63 64 65# Before var.c 1.631 from 2020-10-31 21:40:20, it was possible to pass 66# negative time stamps to the :localtime modifier, resulting in dates before 67# 1970. Going back 50 years in the past is not a practical use case for 68# make. Therefore, since var.c 1.631, negative time stamps produce a 69# parse error. 70.if ${:L:localtime=-1} != "" 71. error 72.else 73. error 74.endif 75 76 77# Spaces were allowed before var.c 1.631, not because it would make sense 78# but just as a side-effect from using strtoul. 79.if ${:L:localtime= 1} != "" 80. error 81.endif 82 83 84# 0 means now; this differs from GNode.mtime, where a 0 means nonexistent. 85# Since "now" constantly changes, the strongest possible test is to match the 86# resulting pattern. 87.if !${:L:localtime=0:tW:M??? ??? ?? ??\:??\:?? 20??} 88. error 89.endif 90 91 92.if ${:L:localtime=1} != "Thu Jan 1 01:00:01 1970" 93. error 94.endif 95 96 97# INT32_MAX 98.if ${:L:localtime=2147483647} != "Tue Jan 19 04:14:07 2038" 99. error 100.endif 101 102 103.if ${:L:localtime=2147483648} == "Tue Jan 19 04:14:08 2038" 104# All systems that have unsigned time_t or 64-bit time_t. 105.elif ${:L:localtime=2147483648} != "Fri Dec 13 21:45:52 1901" 106# FreeBSD-12.0-i386 still has 32-bit signed time_t. 107.else 108. error 109.endif 110 111 112# Integer overflow, at least before var.c 1.631 from 2020-10-31. 113# Because this modifier is implemented using strtoul, the parsed time was 114# ULONG_MAX, which got converted to -1. This resulted in a time stamp of 115# the second before 1970. 116# 117# Since var.c 1.631, the overflow is detected and produces a parse error. 118.if ${:L:localtime=10000000000000000000000000000000} != "" 119. error 120.else 121. error 122.endif 123 124# Before var.c 1.631 from 2020-10-31, there was no error handling while 125# parsing the :localtime modifier, thus no error message is printed. Parsing 126# stopped after the '=', and the remaining string was parsed for more variable 127# modifiers. Because of the unknown modifier 'e' from the 'error', the whole 128# variable value was discarded and thus not printed. 129.if ${:L:localtime=error} != "" 130. error 131.else 132. error 133.endif 134 135 136all: 137