Add a mechanism to exclude packages from spack yaml/shell#366
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The new interface is `exclude_packages`. In deploy config/runtime it lives at `spack.exclude_packages`; in Python it is `exclude_packages=[...]`. Examples: * `exclude_packages: [cmake]` makes the machine cmake external disappear so Spack can build the requested CMake. * `exclude_packages: [hdf5_netcdf]` or `exclude_packages: [e3sm_hdf5_netcdf]` replaces the old bundle-style toggle in a clearer way. * The legacy 1e3sm_hdf5_netcdf1 behavior is still supported and remains backward compatible.
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TestingI was able to use this capability to exclude the cmake system module on Chrysalis, where it is too low to support Albany in Compass in MPAS-Dev/compass#944. |
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The new interface is
exclude_packages. In deploy config/runtime it lives atspack.exclude_packages; in Python it isexclude_packages=[...]. Examples:exclude_packages: [cmake]makes the machine cmake external disappear so Spack can build the requested CMake.exclude_packages: [hdf5_netcdf]orexclude_packages: [e3sm_hdf5_netcdf]replaces the old bundle-style toggle in a clearer way.Checklist
Testingcomment, if appropriate, in the PR documents testing used to verify the changes