`spack checksum` finds wrong URLs about spack

[adamjstewart]

I have (partially) resolved this issue with pull request #408. The reason why Spack couldn't download http://fishshell.com/fish-2.2.0.tar.gz is because that URL does not exist. By setting list_url and list_depth properly, Spack is now able to download any version of Fish that you want.

$ spack fetch [email protected]
==> Warning: There is no checksum on file to fetch [email protected] safely.
  Fetch anyway? [y/N] y
==> Fetching with no checksum.
  Add a checksum or use --no-checksum to skip this check.
==> Trying to fetch from http://fishshell.com/files/2.1.0/fish-2.1.0.tar.gz
######################################################################## 100.0%

However, this does not solve the issue that Spack shouldn't find any remote versions at that location. With the fix in place, spack versions and spack checksum do not find any remote versions, although they should. But spack install and spack fetch now work, which I think is a lot more important.

Does anyone have any idea why Spack was previously finding other versions of Fish but at the wrong URL? Now it doesn't find any other versions of Fish but at the right URL. I have noticed that Spack has a lot of trouble finding versions of packages as soon as list_url and list_depth are necessary.

[adamjstewart]

Looks like this was fixed recently. I reverted the list_url back to its previous value in #2022. Once that is merged, you should be good to go.