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# Source: <https://sources.debian.org/patches/docbook-utils/0.6.14-4/support_source_date_epoch.patch/>
Author: Reiner Herrmann <reiner@reiner-h.de>
Description: Support SOURCE_DATE_EPOCH for timestamps
To allow generating documents in a reproducible way,
allow overriding the timestamp through the environment.
.
See also: https://reproducible-builds.org/specs/source-date-epoch/
Bug-Debian: https://bugs.debian.org/800797
--- a/helpers/docbook2man-spec.pl
+++ b/helpers/docbook2man-spec.pl
@@ -57,6 +57,7 @@
use SGMLS; # Use the SGMLS package.
use SGMLS::Output; # Use stack-based output.
use SGMLS::Refs;
+use POSIX qw(strftime setlocale LC_TIME);
########################################################################
# SGMLSPL script produced automatically by the script sgmlspl.pl
@@ -279,6 +280,10 @@
_END_BANNER
my $date = `date "+%d %B %Y"`;
+ if ($ENV{SOURCE_DATE_EPOCH}) {
+ setlocale(LC_TIME, "C");
+ $date = strftime("%d %B %Y", gmtime($ENV{SOURCE_DATE_EPOCH} || time));
+ }
my $manpage_date = $manpage_date || $date ;
output '.TH "';
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