varmod-localtime.mk revision 1.20
1 # $NetBSD: varmod-localtime.mk,v 1.20 2025/01/11 20:54:46 rillig Exp $ 2 # 3 # Tests for the :localtime variable modifier, which formats a timestamp 4 # using strftime(3) in local time. 5 # 6 # See also: 7 # varmod-gmtime.mk 8 9 .if ${TZ} != "Europe/Berlin" # 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:localtime:tW:M??? ??? ?? ??\:??\:?? ????} == "" 18 . error 19 .endif 20 21 22 # modifier name too short, falling back to the SysV modifier. 23 .if ${%Y:L:localtim=1593536400} != "%Y" 24 . error 25 .endif 26 27 28 # 2020-07-01T00:00:00Z 29 .if ${%Y:L:localtime=1593536400} != "2020" 30 . error 31 .endif 32 33 34 # modifier name too long, falling back to the SysV modifier. 35 .if ${%Y:L:localtimer=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 ${localtime:L:local%=gm%} != "gmtime" 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 ${%Y:L:localtime=${: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 :localtime 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:localtime=-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 ${:L:localtime= 1} != "" 71 . error 72 .else 73 . error 74 .endif 75 76 77 # 0 means now; this differs from GNode.mtime, where a 0 means nonexistent. 78 # Since "now" constantly changes, the strongest possible test is to match the 79 # resulting pattern. 80 .if !${:L:localtime=0:tW:M??? ??? ?? ??\:??\:?? 20??} 81 . error 82 .endif 83 84 85 .if ${:L:localtime=1} != "Thu Jan 1 01:00:01 1970" 86 . error 87 .endif 88 89 90 # INT32_MAX 91 .if ${:L:localtime=2147483647} != "Tue Jan 19 04:14:07 2038" 92 . error 93 .endif 94 95 96 .if ${:L:localtime=2147483648} == "Tue Jan 19 04:14:08 2038" 97 # All systems that have unsigned time_t or 64-bit time_t. 98 .elif ${:L:localtime=2147483648} == "Fri Dec 13 21:45:52 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:localtime=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 :localtime 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:localtime=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:localtime=100000S,1970,bad,} != "bad" 140 . error 141 .endif 142 143 all: 144
Indexes created Thu Oct 02 01:09:59 GMT 2025