Revision a44d6e1ea28ec2ac22ba5699a66817320ddbe915

Identify input labels that do not match package names

Look for formatting issues in the source

Make sure tests are only run when requested

Validate package descriptions

Identify inputs that should be native inputs

Validate file names and availability of patches

Make sure 'wrap-program' can finds its interpreter.

Report collisions that would occur due to propagated inputs

Validate patch headers

Check for autogenerated tarballs

Identify inputs that shouldn't be inputs at all

Validate package names

Check if tests are explicitly enabled

Report failure to compile a package to a derivation

Suggest 'mirror://' URLs