Add debian/watch file for future tarballs.

Add debian/watch file for autogenerated archives from tags on GitHub.

R=daniel@pocock.pro
BUG=

Committed: https://code.google.com/p/libphonenumber/source/detail?r=671

[roubert (google), 2014-06-13 13:53:35]

https://codereview.appspot.com/105970043/diff/1/debian/watch
File debian/watch (right):

https://codereview.appspot.com/105970043/diff/1/debian/watch#newcode3
debian/watch:3: .*/tarball/libphonenumber-(\d[\d\.]+)
I guess this is to match tarballs that you intend to create in the future. Is
that right?

[roubert (google), 2014-06-13 14:49:00]

On Fri, Jun 13, 2014 at 4:15 PM, Daniel Pocock <daniel@pocock.pro> wrote:
> Actually, github autocreates a tarball for every tag and this is the way to
> download them

Then something looks wrong to me:

$ uscan
uscan warning: In debian/watch,
  no matching hrefs for watch line
  https://github.com/libphonenumber/libphonenumber/tags  
.*/tarball/libphonenumber-(\d[\d\.]+)

[roubert (google), 2014-06-13 15:39:37]

On Fri, Jun 13, 2014 at 5:12 PM, Daniel Pocock <daniel@pocock.pro> wrote:
> URL pattern looks incomplete - no tar.gz on the end

And also s/tarball/archive/, it seems. This now looks right to me:

$ uscan --verbose
-- Scanning for watchfiles in .
-- Found watchfile in ./debian
-- In debian/watch, processing watchfile line:
   https://github.com/libphonenumber/libphonenumber/tags  
.*/archive/libphonenumber-(\d[\d\.]+).tar.gz
-- Found the following matching hrefs:
     /libphonenumber/libphonenumber/archive/libphonenumber-6.1.tar.gz
     /libphonenumber/libphonenumber/archive/libphonenumber-6.0.tar.gz
     /libphonenumber/libphonenumber/archive/libphonenumber-5.9.tar.gz
     /libphonenumber/libphonenumber/archive/libphonenumber-5.8.tar.gz
     /libphonenumber/libphonenumber/archive/libphonenumber-5.7.tar.gz
     /libphonenumber/libphonenumber/archive/libphonenumber-5.6.tar.gz
     /libphonenumber/libphonenumber/archive/libphonenumber-5.5.tar.gz
     /libphonenumber/libphonenumber/archive/libphonenumber-5.4.tar.gz
     /libphonenumber/libphonenumber/archive/libphonenumber-5.3.tar.gz
     /libphonenumber/libphonenumber/archive/libphonenumber-5.2.tar.gz
     /libphonenumber/libphonenumber/archive/libphonenumber-5.1.tar.gz
     /libphonenumber/libphonenumber/archive/libphonenumber-5.0.tar.gz
     /libphonenumber/libphonenumber/archive/libphonenumber-4.9.tar.gz
     /libphonenumber/libphonenumber/archive/libphonenumber-4.8.tar.gz
     /libphonenumber/libphonenumber/archive/libphonenumber-4.7.tar.gz
     /libphonenumber/libphonenumber/archive/libphonenumber-4.6.tar.gz
     /libphonenumber/libphonenumber/archive/libphonenumber-4.5.tar.gz
     /libphonenumber/libphonenumber/archive/libphonenumber-4.4.tar.gz
     /libphonenumber/libphonenumber/archive/libphonenumber-4.3.tar.gz
     /libphonenumber/libphonenumber/archive/libphonenumber-4.2.tar.gz
     /libphonenumber/libphonenumber/archive/libphonenumber-4.1.tar.gz
     /libphonenumber/libphonenumber/archive/libphonenumber-4.0.tar.gz
     /libphonenumber/libphonenumber/archive/libphonenumber-3.9.tar.gz
     /libphonenumber/libphonenumber/archive/libphonenumber-3.8.tar.gz
     /libphonenumber/libphonenumber/archive/libphonenumber-3.7.tar.gz
Newest version on remote site is 6.1, local version is 6.1
 => Package is up to date
-- Scan finished

Does it look right to you?

[roubert (google), 2014-06-14 13:09:52]

Committed patchset #2 manually as r671 (presubmit successful).