Dear Maintainer,

uscan doesn't seem to support archive without compression, e.g.  "*.tar"
archive.  For example, archives in GNU ELPA (Emacs Lisp Package Archive)
uses uncompressed tar files for release.  Given a watch file like below

,----
| version=4
|     https://elpa.gnu.org/packages/oauth2.html \
|     oauth2@ANY_VERSION@\.tar.* debian
`----

Running "uscan --force-download" results in the following error:

,----
| $ uscan --force-download
| uscan warn: Possible OpenPGP signature found at:
|    https://elpa.gnu.org/packages/oauth2-0.17.tar.sig
|  * Add opts=pgpsigurlmangle=s/$/.sig/ or opts=pgpmode=auto to debian/watch
|  * Add debian/upstream/signing-key.asc.
|  See uscan(1) for more details
| uscan: error: tar is not a supported compression
`----

It would be great if uscan can support uncompressed archives.

 Hi,

And it seems to be a consequence of debian/source/format (= 3.0 (quilt))
because without it here is the result:

$ uscan --force-download
uscan warn: Possible OpenPGP signature found at:
https://elpa.gnu.org/packages/oauth2-0.17.tar.sig
 * Add opts=pgpsigurlmangle=s/$/.sig/ or opts=pgpmode=auto to debian/watch
 * Add debian/upstream/signing-key.asc.
 See uscan(1) for more details
uscan warn: Missing debian/source/format, switch compression to gzip
Successfully repacked ../oauth2-0.17.tar as
../emacs-oauth2_0.17.orig.tar.gz.
$ tar tf ../emacs-oauth2_0.17.orig.tar.gz
oauth2-0.17/
oauth2-0.17/oauth2.el
oauth2-0.17/NEWS
oauth2-0.17/oauth2-pkg.el
$ tar tf ../oauth2-0.17.tar
oauth2-0.17/
oauth2-0.17/oauth2.el
oauth2-0.17/NEWS
oauth2-0.17/oauth2-pkg.el

Patrice
opts=pgpsigurlmangle=s/$/.sig/ or opts=pgpmode=auto to debian/watch
'stable')
not set