fix: only enable interactivity if stdin is a TTY too #6437
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What's the problem this PR addresses?
Addresses #6419 (comment).
#6419 made Yarn non-interactive when the
stdout
isn't a TTY, but it makes sense to disable interactivity when thestdin
isn't interactive too.How did you fix it?
Made it check whether both
stdout
andstdin
are TTYs before enabling interactivity.This way both of the following commands will always be non-interactive:
yarn add lodash > foo.txt
echo '' | yarn add lodash
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