I encountered a hang in Yarn 3.2.0 and have isolated the root cause as an infinite loop in diff@4.0.1. (I'm not sure it's strictly infinite -- but it certainly doesn't terminate after an hour.) When Yarn asks diff to create a structured patch in order to show the user how the lockfile has changed, diff runs forever, consuming a lot of CPU while it does so.
I have reproduced the issue in this gist for your convenience.
I also verified that the hang still happens with diff@5.0.0 -- so it's still a legitimate issue. If I make any progress on diagnosing or fixing, I will update this ticket.
I encountered a hang in Yarn 3.2.0 and have isolated the root cause as an infinite loop in
diff@4.0.1. (I'm not sure it's strictly infinite -- but it certainly doesn't terminate after an hour.) When Yarn asksdiffto create a structured patch in order to show the user how the lockfile has changed,diffruns forever, consuming a lot of CPU while it does so.I have reproduced the issue in this gist for your convenience.
I also verified that the hang still happens with
diff@5.0.0-- so it's still a legitimate issue. If I make any progress on diagnosing or fixing, I will update this ticket.