diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/spack/spack/concretize.py | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/lib/spack/spack/concretize.py b/lib/spack/spack/concretize.py index d9419da784..85cdb202d5 100644 --- a/lib/spack/spack/concretize.py +++ b/lib/spack/spack/concretize.py @@ -40,7 +40,6 @@ import spack.error from spack.version import * - class DefaultConcretizer(object): """This class doesn't have any state, it just provides some methods for concretization. You can subclass it to override just some of the @@ -68,9 +67,17 @@ class DefaultConcretizer(object): # If there are known available versions, return the most recent # version that satisfies the spec pkg = spec.package + + # Key function to sort versions first by whether they were + # marked `preferred=True`, then by most recent. + def preferred_key(v): + prefer = pkg.versions[v].get('preferred', False) + return (prefer, v) + valid_versions = sorted( [v for v in pkg.versions - if any(v.satisfies(sv) for sv in spec.versions)]) + if any(v.satisfies(sv) for sv in spec.versions)], + key=preferred_key) if valid_versions: spec.versions = ver([valid_versions[-1]]) |