On Apr 22, 2012, at 16:35, Joshua Root wrote: > WFM: > > % openssl sha1 1/file.tar 2/file.tar > SHA1(1/file.tar)= 7937656d0860ca9286a24246a199cf2fddeb6e49 > SHA1(2/file.tar)= 7937656d0860ca9286a24246a199cf2fddeb6e49 > % gzip 1/file.tar > % gzip 2/file.tar > % openssl sha1 1/file.tar.gz 2/file.tar.gz > SHA1(1/file.tar.gz)= 78020f5e126da22be27ac9eda2633db59b725480 > SHA1(2/file.tar.gz)= 78020f5e126da22be27ac9eda2633db59b725480 > > Do your two input files also have identical timestamps?
Ah, you're right, they did not. Now I get the same sums, if both files have not only the same name but also the same timestamp. So I guess what a service like bitbucket would have to do when it generates a tarball is to set its timestamp to the timestamp of the requested revision before gzipping it. _______________________________________________ macports-dev mailing list macports-dev@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macports-dev