Package: groff / 1.22.4-6

display-utc-times.patch Patch series | download
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From 69faba79256faeee8d564298855eebe8c5e9c870 Mon Sep 17 00:00:00 2001
From: Colin Watson <cjwatson@debian.org>
Date: Fri, 6 Nov 2015 11:40:37 +0000
Subject: Always use UTC times for display

Using localtime is problematic for reproducible builds.  For now, always
use UTC times (gmtime etc.) for display.  (Note that this changes the
semantics of \n[hours] etc., so may need further work.)

Forwarded: no
Last-Update: 2018-03-05

Patch-Name: display-utc-times.patch
---
 src/devices/grohtml/post-html.cpp | 4 ++--
 src/devices/gropdf/gropdf.pl      | 4 ++--
 src/devices/grops/ps.cpp          | 2 +-
 src/roff/troff/input.cpp          | 2 +-
 4 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/devices/grohtml/post-html.cpp b/src/devices/grohtml/post-html.cpp
index 7bc017e0..ad7ca54f 100644
--- a/src/devices/grohtml/post-html.cpp
+++ b/src/devices/grohtml/post-html.cpp
@@ -5016,7 +5016,7 @@ void html_printer::do_file_components (void)
 
       t = current_time();
       html.begin_comment("CreationDate: ")
-	.put_string(ctime(&t), strlen(ctime(&t))-1)
+	.put_string(asctime(gmtime(&t)), strlen(asctime(gmtime(&t)))-1)
 	.end_comment();
 
       if (dialect == html4)
@@ -5129,7 +5129,7 @@ html_printer::~html_printer()
 
   t = current_time();
   html.begin_comment("CreationDate: ")
-    .put_string(ctime(&t), strlen(ctime(&t))-1)
+    .put_string(asctime(gmtime(&t)), strlen(asctime(gmtime(&t)))-1)
     .end_comment();
 
   if (dialect == html4)
diff --git a/src/devices/gropdf/gropdf.pl b/src/devices/gropdf/gropdf.pl
index 2ec52d06..134b0962 100644
--- a/src/devices/gropdf/gropdf.pl
+++ b/src/devices/gropdf/gropdf.pl
@@ -280,7 +280,7 @@ elsif (exists($ppsz{$papersz}))
     @defaultmb=@mediabox=(0,0,$ppsz{$papersz}->[0],$ppsz{$papersz}->[1]);
 }
 
-my (@dt)=localtime($ENV{SOURCE_DATE_EPOCH} || time);
+my (@dt)=gmtime($ENV{SOURCE_DATE_EPOCH} || time);
 my $dt=PDFDate(\@dt);
 
 my %info=('Creator' => "(groff version $cfg{GROFF_VERSION})",
@@ -538,7 +538,7 @@ sub GetObj
 sub PDFDate
 {
     my $dt=shift;
-    return(sprintf("D:%04d%02d%02d%02d%02d%02d%+03d'00'",$dt->[5]+1900,$dt->[4]+1,$dt->[3],$dt->[2],$dt->[1],$dt->[0],( localtime time() + 3600*( 12 - (gmtime)[2] ) )[2] - 12));
+    return(sprintf("D:%04d%02d%02d%02d%02d%02d+00'00'",$dt->[5]+1900,$dt->[4]+1,$dt->[3],$dt->[2],$dt->[1],$dt->[0]));
 }
 
 sub ToPoints
diff --git a/src/devices/grops/ps.cpp b/src/devices/grops/ps.cpp
index ab3b1d73..b0fb78e1 100644
--- a/src/devices/grops/ps.cpp
+++ b/src/devices/grops/ps.cpp
@@ -1392,7 +1392,7 @@ ps_printer::~ps_printer()
     time_t
 #endif
     t = current_time();
-    fputs(ctime(&t), out.get_file());
+    fputs(asctime(gmtime(&t)), out.get_file());
   }
   for (font_pointer_list *f = font_list; f; f = f->next) {
     ps_font *psf = (ps_font *)(f->p);
diff --git a/src/roff/troff/input.cpp b/src/roff/troff/input.cpp
index a1bd8eaf..f415aa6d 100644
--- a/src/roff/troff/input.cpp
+++ b/src/roff/troff/input.cpp
@@ -8084,7 +8084,7 @@ static void init_registers()
 #endif /* not LONG_FOR_TIME_T */
     t = current_time();
   // Use struct here to work around misfeature in old versions of g++.
-  struct tm *tt = localtime(&t);
+  struct tm *tt = gmtime(&t);
   set_number_reg("seconds", int(tt->tm_sec));
   set_number_reg("minutes", int(tt->tm_min));
   set_number_reg("hours", int(tt->tm_hour));