1# $NetBSD: varmod-gmtime.mk,v 1.24 2024/07/05 19:47:22 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+2: while evaluating "${:L:gmtime=-1} != """ with value "": Invalid time value "-1" 60# expect+1: Malformed conditional (${:L:gmtime=-1} != "") 61.if ${:L:gmtime=-1} != "" 62. error 63.else 64. error 65.endif 66 67 68# Spaces were allowed before var.c 1.631 from 2020-10-31 21:40:20, not 69# because it would make sense but just as a side-effect from using strtoul. 70# expect+2: while evaluating "${:L:gmtime= 1} != """ with value "": Invalid time value " 1" 71# expect+1: Malformed conditional (${:L:gmtime= 1} != "") 72.if ${:L:gmtime= 1} != "" 73. error 74.else 75. error 76.endif 77 78 79# 0 means now; this differs from GNode.mtime, where a 0 means nonexistent. 80# Since "now" constantly changes, the strongest possible test is to match the 81# resulting pattern. 82.if !${:L:gmtime=0:tW:M??? ??? ?? ??\:??\:?? 20??} 83. error 84.endif 85 86 87.if ${:L:gmtime=1} != "Thu Jan 1 00:00:01 1970" 88. error 89.endif 90 91 92# INT32_MAX 93.if ${:L:gmtime=2147483647} != "Tue Jan 19 03:14:07 2038" 94. error 95.endif 96 97 98.if ${:L:gmtime=2147483648} == "Tue Jan 19 03:14:08 2038" 99# All systems that have unsigned time_t or 64-bit time_t. 100.elif ${:L:gmtime=2147483648} == "Fri Dec 13 20:45:52 1901" 101# FreeBSD-12.0-i386 still has 32-bit signed time_t, see 102# sys/x86/include/_types.h, __LP64__. 103# 104# Linux on 32-bit systems may still have 32-bit signed time_t, see 105# sysdeps/unix/sysv/linux/generic/bits/typesizes.h, __TIMESIZE. 106.else 107. error 108.endif 109 110 111# Integer overflow, at least before var.c 1.631 from 2020-10-31. 112# Because this modifier is implemented using strtoul, the parsed time was 113# ULONG_MAX, which got converted to -1. This resulted in a time stamp of 114# the second before 1970. 115# 116# Since var.c 1.631 from 2020-10-31, the overflow is detected and produces a 117# parse error. 118# expect+2: while evaluating "${:L:gmtime=10000000000000000000000000000000} != """ with value "": Invalid time value "10000000000000000000000000000000" 119# expect+1: Malformed conditional (${:L:gmtime=10000000000000000000000000000000} != "") 120.if ${:L:gmtime=10000000000000000000000000000000} != "" 121. error 122.else 123. error 124.endif 125 126# Before var.c 1.631 from 2020-10-31, there was no error handling while 127# parsing the :gmtime modifier, thus no error message was printed. Parsing 128# stopped after the '=', and the remaining string was parsed for more variable 129# modifiers. Because of the unknown modifier 'e' from the 'error', the whole 130# variable value was discarded and thus not printed. 131# expect+2: while evaluating "${:L:gmtime=error} != """ with value "": Invalid time value "error" 132# expect+1: Malformed conditional (${:L:gmtime=error} != "") 133.if ${:L:gmtime=error} != "" 134. error 135.else 136. error 137.endif 138 139# Before var.c 1.1050 from 2023-05-09, the timestamp could be directly 140# followed by the next modifier, without a ':' separator. This was the same 141# bug as for the ':L' and ':P' modifiers. 142# expect+2: while evaluating variable "%Y" with value "%Y": Invalid time value "100000S,1970,bad," 143# expect+1: Malformed conditional (${%Y:L:gmtime=100000S,1970,bad,} != "bad") 144.if ${%Y:L:gmtime=100000S,1970,bad,} != "bad" 145. error 146.endif 147 148 149# Before var.c 1.1062 from 2023-08-19, ':gmtime' but not ':localtime' reported 150# wrong values for '%s', depending on the operating system and the timezone. 151export TZ=UTC 152.for t in ${%s:L:gmtime} ${%s:L:localtime} 153TIMESTAMPS+= $t 154.endfor 155export TZ=Europe/Berlin 156.for t in ${%s:L:gmtime} ${%s:L:localtime} 157TIMESTAMPS+= $t 158.endfor 159export TZ=UTC 160.for t in ${%s:L:gmtime} ${%s:L:localtime} 161TIMESTAMPS+= $t 162.endfor 163export TZ=America/Los_Angeles 164.for t in ${%s:L:gmtime} ${%s:L:localtime} 165TIMESTAMPS+= $t 166.endfor 167export TZ=UTC 168.for t in ${%s:L:gmtime} ${%s:L:localtime} 169TIMESTAMPS+= $t 170.endfor 171.for a b in ${TIMESTAMPS:[1]} ${TIMESTAMPS:@t@$t $t@} ${TIMESTAMPS:[-1]} 172. if $a > $b 173. warning timestamp $a > $b 174. endif 175.endfor 176 177 178.if ${year=%Y month=%m day=%d:L:gmtime=1459494000} != "year=2016 month=04 day=01" 179. error 180.endif 181# Slightly contorted syntax to convert a UTC timestamp from an expression to a 182# formatted timestamp. 183.if ${%Y%m%d:L:${gmtime=${:U1459494000}:L}} != "20160401" 184. error 185.endif 186 187 188all: 189