1# $NetBSD: varmod-gmtime.mk,v 1.27 2025/01/11 20:54:45 rillig Exp $ 2# 3# Tests for the :gmtime variable modifier, which formats a timestamp 4# using strftime(3) in UTC. 5# 6# See also: 7# varmod-localtime.mk 8 9.if ${TZ:Uundefined} != "undefined" # see unit-tests/Makefile 10. error 11.endif 12 13# Test for the default time format, %c. Since the time always varies, it's 14# only possible to check for the general format here. The names of the 15# month and weekday are always in English, independent from the locale. 16# Example: Thu Oct 29 18:56:41 2020 17.if ${:U:gmtime:tW:M??? ??? ?? ??\:??\:?? ????} == "" 18. error 19.endif 20 21 22# modifier name too short, falling back to the SysV modifier. 23.if ${%Y:L:gmtim=1593536400} != "%Y" 24. error 25.endif 26 27 28# 2020-07-01T00:00:00Z 29.if ${%Y:L:gmtime=1593536400} != "2020" 30. error 31.endif 32 33 34# modifier name too long, falling back to the SysV modifier. 35.if ${%Y:L:gmtimer=1593536400} != "%Y" 36. error 37.endif 38 39 40# If the modifier name is not matched exactly, fall back to the 41# :from=to modifier. 42.if ${gmtime:L:gm%=local%} != "localtime" 43. error 44.endif 45 46 47# Before var.c 1.1050 from 2023-05-09, it was not possible to pass the 48# seconds via an expression. 49.if ${%Y:L:gmtime=${:U1593536400}} != "2020" 50. error 51.endif 52 53 54# Before var.c 1.631 from 2020-10-31 21:40:20, it was possible to pass 55# negative time stamps to the :gmtime modifier, resulting in dates before 56# 1970. Going back 50 years in the past is not a practical use case for 57# make. Therefore, since var.c 1.631, negative time stamps produce a 58# parse error. 59# expect+1: Invalid time value "-1" 60.if ${:L:gmtime=-1} != "" 61. error 62.else 63. error 64.endif 65 66 67# Spaces were allowed before var.c 1.631 from 2020-10-31 21:40:20, not 68# because it would make sense but just as a side-effect from using strtoul. 69# expect+1: Invalid time value " 1" 70.if ${:L:gmtime= 1} != "" 71. error 72.else 73. error 74.endif 75 76 77# 0 means now; this differs from GNode.mtime, where a 0 means nonexistent. 78# Since "now" constantly changes, the strongest possible test is to match the 79# resulting pattern. 80.if !${:L:gmtime=0:tW:M??? ??? ?? ??\:??\:?? 20??} 81. error 82.endif 83 84 85.if ${:L:gmtime=1} != "Thu Jan 1 00:00:01 1970" 86. error 87.endif 88 89 90# INT32_MAX 91.if ${:L:gmtime=2147483647} != "Tue Jan 19 03:14:07 2038" 92. error 93.endif 94 95 96.if ${:L:gmtime=2147483648} == "Tue Jan 19 03:14:08 2038" 97# All systems that have unsigned time_t or 64-bit time_t. 98.elif ${:L:gmtime=2147483648} == "Fri Dec 13 20:45:52 1901" 99# FreeBSD-12.0-i386 still has 32-bit signed time_t, see 100# sys/x86/include/_types.h, __LP64__. 101# 102# Linux on 32-bit systems may still have 32-bit signed time_t, see 103# sysdeps/unix/sysv/linux/generic/bits/typesizes.h, __TIMESIZE. 104.else 105. error 106.endif 107 108 109# Integer overflow, at least before var.c 1.631 from 2020-10-31. 110# Because this modifier is implemented using strtoul, the parsed time was 111# ULONG_MAX, which got converted to -1. This resulted in a time stamp of 112# the second before 1970. 113# 114# Since var.c 1.631 from 2020-10-31, the overflow is detected and produces a 115# parse error. 116# expect+1: Invalid time value "10000000000000000000000000000000" 117.if ${:L:gmtime=10000000000000000000000000000000} != "" 118. error 119.else 120. error 121.endif 122 123# Before var.c 1.631 from 2020-10-31, there was no error handling while 124# parsing the :gmtime modifier, thus no error message was printed. Parsing 125# stopped after the '=', and the remaining string was parsed for more variable 126# modifiers. Because of the unknown modifier 'e' from the 'error', the whole 127# variable value was discarded and thus not printed. 128# expect+1: Invalid time value "error" 129.if ${:L:gmtime=error} != "" 130. error 131.else 132. error 133.endif 134 135# Before var.c 1.1050 from 2023-05-09, the timestamp could be directly 136# followed by the next modifier, without a ':' separator. This was the same 137# bug as for the ':L' and ':P' modifiers. 138# expect+1: Invalid time value "100000S,1970,bad," 139.if ${%Y:L:gmtime=100000S,1970,bad,} != "bad" 140. error 141.endif 142 143 144# Before var.c 1.1062 from 2023-08-19, ':gmtime' but not ':localtime' reported 145# wrong values for '%s', depending on the operating system and the timezone. 146export TZ=UTC 147.for t in ${%s:L:gmtime} ${%s:L:localtime} 148TIMESTAMPS+= $t 149.endfor 150export TZ=Europe/Berlin 151.for t in ${%s:L:gmtime} ${%s:L:localtime} 152TIMESTAMPS+= $t 153.endfor 154export TZ=UTC 155.for t in ${%s:L:gmtime} ${%s:L:localtime} 156TIMESTAMPS+= $t 157.endfor 158export TZ=America/Los_Angeles 159.for t in ${%s:L:gmtime} ${%s:L:localtime} 160TIMESTAMPS+= $t 161.endfor 162export TZ=UTC 163.for t in ${%s:L:gmtime} ${%s:L:localtime} 164TIMESTAMPS+= $t 165.endfor 166.for a b in ${TIMESTAMPS:[1]} ${TIMESTAMPS:@t@$t $t@} ${TIMESTAMPS:[-1]} 167. if $a > $b 168. warning timestamp $a > $b 169. endif 170.endfor 171 172 173.if ${year=%Y month=%m day=%d:L:gmtime=1459494000} != "year=2016 month=04 day=01" 174. error 175.endif 176# Slightly contorted syntax to convert a UTC timestamp from an expression to a 177# formatted timestamp. 178.if ${%Y%m%d:L:${gmtime=${:U1459494000}:L}} != "20160401" 179. error 180.endif 181 182 183all: 184