Patrick Gartung ab36008635 binary_distribution: Initialize _cached_specs at the module level and only search the mirrors in get_spec if spec is not in _cached_specs. (#14714) ... * Initialize _cached_specs at the file level and check for spec in it before searching mirrors in try_download_spec. * Make _cached_specs a set to avoid duplicates * Fix packaging test * Ignore build_cache in stage when spec.yaml files are downloaded.		2020-01-31 20:08:47 -06:00
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spack	binary_distribution: Initialize _cached_specs at the module level and only search the mirrors in get_spec if spec is not in _cached_specs. (#14714)	2020-01-31 20:08:47 -06:00