Scott Wittenburg 31f57e56bb Binary caching: use full hashes (#19209) ... * "spack install" now has a "--require-full-hash-match" option, which forces Spack to skip an available binary package when the full hash doesn't match. Normally only a DAG-hash match is required, which ensures equivalent Specs, but does not account for changing logic inside the associated package. * Add a local binary cache index which tracks specs that have a binary install available in a remote binary cache. It is updated with "spack buildcache list" or for a given spec when a binary package is retrieved for that Spec.		2020-10-30 12:53:33 -07:00
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spack	Binary caching: use full hashes (#19209)	2020-10-30 12:53:33 -07:00