Honour an external definition of SOURCE_DATE_EPOCH when updating the embedded modification date in TTF/TTC files. --- a/lib/tatime.c +++ b/lib/tatime.c @@ -15,6 +15,8 @@ #include #include +#include +#include #include "ta.h" @@ -27,12 +29,51 @@ TA_get_current_time(FT_ULong* high, { /* there have been 24107 days between January 1st, 1904 (the epoch of */ /* OpenType), and January 1st, 1970 (the epoch of the `time' function) */ - TA_ULongLong seconds_to_1970 = 24107 * 24 * 60 * 60; - TA_ULongLong seconds_to_today = seconds_to_1970 + (TA_ULongLong)time(NULL); + const TA_ULongLong seconds_to_1970 = 24107 * 24 * 60 * 60; + TA_ULongLong seconds_to_build; + time_t now; + char *source_date_epoch, *endptr; + TA_ULongLong epoch; + source_date_epoch = getenv("SOURCE_DATE_EPOCH"); + if (source_date_epoch) { + errno = 0; + epoch = strtoull(source_date_epoch, &endptr, 10); + if ((errno == ERANGE && (epoch == ULLONG_MAX || epoch == 0)) + || (errno != 0 && epoch == 0)) { + fprintf(stderr, + "Environment variable $SOURCE_DATE_EPOCH: strtoull: %s\n", + strerror(errno)); + exit(EXIT_FAILURE); + } + if (endptr == source_date_epoch) { + fprintf(stderr, + "Environment variable $SOURCE_DATE_EPOCH: No digits were found: %s\n", + endptr); + exit(EXIT_FAILURE); + } + if (*endptr != '\0') { + fprintf(stderr, + "Environment variable $SOURCE_DATE_EPOCH: Trailing garbage: %s\n", + endptr); + exit(EXIT_FAILURE); + } + if (epoch > ULONG_MAX) { + fprintf(stderr, + "Environment variable $SOURCE_DATE_EPOCH: value must be smaller " + "than or equal to: %lu but was found to be: %llu \n", + ULONG_MAX, epoch); + exit(EXIT_FAILURE); + } + now = epoch; + } else { + now = time(NULL); + } - *high = (FT_ULong)(seconds_to_today >> 32); - *low = (FT_ULong)seconds_to_today; + seconds_to_build = seconds_to_1970 + (TA_ULongLong)now; + + *high = (FT_ULong)(seconds_to_build >> 32); + *low = (FT_ULong)seconds_to_build; } /* end of tatime.c */ >tests/services.scm
AgeCommit message (Expand)Author
2019-01-24tests: Remove duplicate field initializers....Ludovic Courtès
2018-09-27tests: Adjust services tests to new 'shepherd-service-upgrade'....Ludovic Courtès
2018-09-07services: 'instantiate-missing-services' reaches fixed point....Ludovic Courtès
2018-01-21services: Missing services are automatically instantiated....Ludovic Courtès
2017-11-08services: Add 'lookup-service-types'....Ludovic Courtès
2017-04-16services: Service types can now specify a default value for instances....Ludovic Courtès
2017-04-16services: 'service-parameters' becomes 'service-value'....Ludovic Courtès
2016-08-31services: shepherd: Add 'shepherd-service-upgrade', from 'guix system'....Ludovic Courtès
2016-08-31services: shepherd: Add 'shepherd-service-lookup-procedure'....Ludovic Courtès
2016-04-03build: Add a Guile custom test driver using SRFI-64....Mathieu Lirzin
2016-01-29services: Rename 'dmd' services to 'shepherd'....Alex Kost
2016-01-29Rename (gnu services dmd) to (gnu services shepherd)....Alex Kost
2015-10-14services: Add 'dmd-service-back-edges'....Ludovic Courtès
2015-10-14services: Export 'service-back-edges'....Ludovic Courtès
2015-10-10services: Introduce extensible services....Ludovic Courtès