From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sat, 16 Jul 2016 11:33:51 +0000 (+0100)
Subject: Split brain: Use GZIP -1n to avoid spurious timestamp
X-Git-Tag: archive/debian/2.0~272
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=dgit.git;a=commitdiff_plain;h=f003a2342e846c512393749568fe85477a9f282a

Split brain: Use GZIP -1n to avoid spurious timestamp

Otherwise the cache entry's .dsc contains the hash of a fake
debian.tar.gz which has had a timestamp put in it by gzip, defeating
the cache.
---

diff --git a/dgit b/dgit
index ed3f5262..81c5ff91 100755
--- a/dgit
+++ b/dgit
@@ -3055,7 +3055,7 @@ END
     }
 
     my $debtar= srcfn $fakeversion,'.debian.tar.gz';
-    runcmd qw(env GZIP=-1 tar -zcf), "./$debtar", qw(-C ../../..), @files;
+    runcmd qw(env GZIP=-1n tar -zcf), "./$debtar", qw(-C ../../..), @files;
 
     $dscaddfile->($debtar);
     close $fakedsc or die $!;