checksum on a tarball?

[dagolden]

Could we make it easy to get the checksum on a tarball?

[karenetheridge]

more breadcrumbs for later:

13:11 @xdg ether, see http://www.cpan.org/authors/id/E/ET/ETHER/CHECKSUMS
13:12 @xdg of course, having CHECKSUMS in a more easily searchable form would be nice
13:23 @ether xdg: right, so PAUSE already has checksums.. so the other part is an interface to calculate that on the client side, for comparing to (and, a nicer interface to fetch the checksum on PAUSE)
13:24 @xdg ether, path($tarball)->digest?
13:24 @xdg :-)
13:24 @xdg but, the github issue was to remind me to figure out how to make that checksum easier to retrieve
13:25 @xdg AUTHOR/TARBALL.md5 as a file would have been awfully convenient :-/
13:25 @xdg so we can fake it with CPAN::Common::Index
13:43 @ether xdg: I guess that was my point - it wasn't clear that that is indeed the mechanism by which the checksum is calculated
13:44 @ether that would do nicely as an interface in Dist::Metadata
13:57 @xdg ether, I'm not 100% sure, I'd have to check the CPAN.pm code
13:58 @xdg If not, we ought to get Andreas to calculate it the right way!
14:01 * xdg has checked. It looks like straightforward Digest::SHA 256bit check, albeit done in a roundabout way.
14:01 @xdg CPAN::Distribution::CHECKSUM_check_file is the sub if you want to see it