Add env to disable finding packages from paths #17840
Merged
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We have
HOMEBREW_ALLOWED_TAPS
but this is currently bypassable by manually downloading and doingbrew install ./something.rb
Add a new env to disable this functionality. Unfortunately, a lot of things uses this internally so have to allow HOMEBREW_CELLAR etc. for now (though such environments should be protected anyway in controlled environments).
Naming open to debate.