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authorTodd Gamblin <tgamblin@llnl.gov>2018-03-24 07:39:10 -0700
committerGitHub <noreply@github.com>2018-03-24 07:39:10 -0700
commitaf0f94a1af62aa29ed5b91eeaeccba519d6ee8c4 (patch)
tree8f97d509d4eb876442b54cd91d4c7655923321ec /bin
parent998b5a6482e77cc17b1fca2e248d2bd3d8bf3a60 (diff)
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Avoid stat-ing all packages at startup. (#7587)
- FastPackageChecker was being called at startup every time Spack runs, which takes a long time on networked filesystems. Startup was taking 5-7 seconds due to this call. - The checker was intended to avaoid importing all packages (which is really expensive) when all it needs is to stat them. So it's only "fast" for parts of the code that *need* it. - This commit makes repositories instantiate the checker lazily, so it's only constructed when needed.
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