Nushell: Command 'du' on macOS throws error: "Operation not permitted (os error 1)"

[kvrhdn]

Describe the bug
So I wanted to run the new du command, and then this happened 😅

I assume it caused by the new security features introduced with Catalina, i.e. https://www.howtogeek.com/443611/how-macos-catalinas-new-security-features-work/

System
I'm running

• macOS Catalina 10.15.2 (19C57)
• nu 0.9.0

[thegedge]

Works for me.

Did you run this in a directory where there was a subdirectory/file that your account didn't have the privileges to stat? I'm guessing that's the problem, which is still a bug, just interested if that's the problem. You can try running ^du -d1 to see if it has the same issue (although it may complete, but may output errors to stderr).

[kvrhdn]

Ah, you're right! Running ^du I get errors like:

du: ./Library/Application Support/CallHistoryTransactions: Operation not permitted

du works fine in 'regular' directories.

I'd consider it an enhancement then to limit the impact of these errors and still list all other directories.

[thegedge]

Yeah, I think there's a more general enhancement here, or at least something to think about: when an output stream emits an error, should we fail immediately, or ignore? I think the latter shouldn't be done automatically, but perhaps a user could request it.

[EDIT]
To back up why I think the above w.r.t. an example. If we ignored errors in du's output stream, we'd be providing incomplete information, and users may not realize that.