Change global lock only if format upgrade is performed #4612
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…grade and release it
Sys.is_directory raises if called on a dangling symlink.
…fix failure due to undefined switch
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Thanks, this indeed feels much better. |
AltGr
approved these changes
Mar 30, 2021
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The global lock is no more taken regarding opam root format upgrade needs. It is upgraded to the needed one (read ou write) according the kind of upgrade to perform (light/hard, on the fly or not), and released afterwards.
fix #4597