* Extract the MetaPathFinder and Loaders for packages in their own classes
https://peps.python.org/pep-0451/
Currently, RepoPath and Repo implement the (deprecated) interface of
MetaPathFinder (find_module) and of Loader (load_module). This commit
extracts both of them and places the code in their own classes.
The MetaPathFinder interface is updated to contain both the deprecated
"find_module" (for Python 2.7 support) and the recommended "find_spec".
Update of the Loader interface is deferred at a subsequent commit.
* Move the lines to be prepended inside "RepoLoader"
Also adjust the naming of a few variables too
* Remove spack.util.imp, since code is only used in spack.repo
* Remove support from loading Python modules Python > 3 but < 3.5
* Remove `Repo._create_namespace`
This function was interacting badly with the MetaPathFinder
and causing issues with "normal" imports. Removing the
function allows to do things like:
```python
import spack.pkg.builtin.mpich
cls = spack.pkg.builtin.mpich.Mpich
```
* Remove code needed to trigger the Singleton evaluation
The finder is coded in a way to trigger the Singleton,
so we don't need external code now that we register it
at module level into `sys.meta_path`.
* Add unit tests
OpenMPI includes cuda_runtime.h, which errors with `#error --
unsupported GNU version! gcc versions later than 9 are not supported!`
By inheriting CudaPackage, the proper conflicts between `cuda` and
`gcc`/`clang` are added.
* Add checksum for fonttools@4.26.2
* Add python 3.6 dependency for py-fonttools@4.26.2 and update to 3.7 as of py-fonttools@4.28
Co-authored-by: Adam J. Stewart <ajstewart426@gmail.com>
Co-authored-by: Andrea Valenzuela <avalenzu@pccms161.dyndns.cern.ch>
Co-authored-by: Adam J. Stewart <ajstewart426@gmail.com>
* mesa, mesa18: Implement the swr variant consistently between mesa and mesa18
* mesa: Bump to 21.3.7
* mesa: Build release by default tie swr to release builds
* mesa, mesa18: re-enable the llvm variant by default
This reverts the change made in #29360
Some servers require `User-Agent` to be set, and otherwise error with
access denied. One such example is mpich.
To fix this, set `User-Agent: Spackbot/[version]` as a header.
Apparently by convention, it should include the word `bot`.
#27021 broke fetching for CVS-based packages because:
- The mirror logic was using URL parsing to extract a path from the
CVS repository location
- #27021 added sanity checks to enforce that strings passed to the
URL parser were actually URLs
This replaces the call to "url_util.parse" with logic that is
customized for CVS. This implies that VCSFetchStrategy should
rename the "url_attr" attribute to something more generic, but
that should be handled separately.
* mpich: add 3.4.3, 4.0, 4.0.1
* mpich: add url_for_version function
For versions 4.0 and up, get tarballs from GitHub. This will help with
CI builds, since the MPICH website denies the urllib user-agent from
downloading release tarballs.
* mpich: disable cuda support
MPICH is failing to build in CI due to a configuration script bug in
detecting CUDA support. Disable CUDA support by default until we add a
proper variant.
Allow declaring possible values for variants with an associated condition. If the variant takes one of those values, the condition is imposed as a further constraint.
The idea of this PR is to implement part of the mechanisms needed for modeling [packages with multiple build-systems]( https://github.com/spack/seps/pull/3). After this PR the build-system directive can be implemented as:
```python
variant(
'build-system',
default='cmake',
values=(
'autotools',
conditional('cmake', when='@X.Y:')
),
description='...',
)
```
Modifications:
- [x] Allow conditional possible values in variants
- [x] Add a unit-test for the feature
- [x] Add documentation
