We'd like to use a consistent checksum scheme everywhere so that we can:
a) incorporate archive checksums into our specs and have a
consistent hashing algorithm across all specs.
b) index mirrors with a consistent type of checksum, and not one that
is dependent on how spack packages are written.
- [x] convert existing md5, sha224, sha512, sha1 checksums to sha256
* The perl-uri-escape package duplicates perl-uri
The Perl URI::Escape module is in the Perl URI package so the Spack
perl-uri-escape package is a duplicate of the perl-uri package. This PR
does the following:
- replace `depends_on('perl-uri-escape')` with `depends_on('perl-uri')`
in packages that dependend on perl-uri-escape
- add the version from perl-uri-escape to perl-uri
- remove the unneeded dependency from perl-uri
- remove the perl-uri-escape package
* Reinstated perl-test-needs dependency
Put the perl-test-needs dependency for perl-uri back in but set it to
type='test'.
* For tests to succeed the type must be ('build', 'test')
- remove the old LGPL license headers from all files in Spack
- add SPDX headers to all files
- core and most packages are (Apache-2.0 OR MIT)
- a very small number of remaining packages are LGPL-2.1-only
