Put error logs in cache folder

[tomkel]

Do you want to request a feature or report a bug?

feature

What is the current behavior?
Yarn will store yarn-error.log in the current directory.

What is the expected behavior?
In npm v4.2.0, npm-debug.log is no longer placed in the current directory, but in the (npm config get cache)/_logs directory. I suggest yarn do something similar with the error logs.

[liorzis1]

Hi, can I try working on this?

[liorzis1]

@Daniel15 Do you have a suggestion regarding simulating errors in tests that would invoke a log file? Couldn't find anything in the current tests

[Daniel15]

can I try working on this?

Sure :)

Do you have a suggestion regarding simulating errors in tests that would invoke a log file?

Not sure, sorry. You might need to look around the code a bit. Maybe see if there's any existing tests for the log files?

[liorzis1]

Thanks for the quick reply. I'll try digging in. So far, no tests related to log files that I could find.
Hopefully will have the PR ready tomorrow.

[bestander]

Cache folder does not seem like the best place to store error log.
How about a configurable folder for install metadata, e.g. .yarn in the project?
We could put .yarn-integrity an yarn-error.log there if user opted in.

[BYK]

I don't think this is worth spending time on so closing. If there is anyone with a concrete suggestion other than placing this file in the cache directory, please file a new issue with as much detail as possible or even better, propose an RFC: https://github.com/yarnpkg/rfcs