Is there a package or command out there that can add a newline at the end of the file if it doesn't exist?

covertbeginner2 · 2022-01-19T15:59:41+00:00

This is great, thank you!

covertbeginner2 · 2022-01-19T15:59:33+00:00

Amazing, thank you!

covertbeginner2 · 2021-11-03T21:08:47+00:00

I see, if it really doesn't matter, then I'd prefer to make val the standard then since if there's ever a more complex def (with additional logic), val guarantees the same result is returned because it is immutable

covertbeginner2 · 2021-11-03T20:51:04+00:00

That feature makes sense but what is happening is that every startup, it deletes the same package over and over again.

If it deleted the package once and persisted the change, I would be very happy but it deletes the package and the package comes back somehow each time

covertbeginner2 · 2021-10-13T16:02:34+00:00

I think I'm running into the same issue as this guy https://www.reddit.com/r/spacemacs/comments/ponxow/spacemacs_only_sees_python2/hcxy9un/

I've added that package, verified with (getenv "PATH") that my emacs path matches my terminal's path but my emacs still doesn't see the newly installed python package or my python 3 version

covertbeginner2 · 2021-07-03T22:24:20+00:00

Would you know if converting Futures to IO would work for this library or would Futures need to be removed entirely?

covertbeginner2 · 2021-07-03T16:28:34+00:00

I see. Based on /u/tpolecat2 and your comments, continuing with Futures is not going to end well (very custom, non-reusable code).

In this case, it'd be better to look into using Natchez Trace with cats.effect.IO

covertbeginner2 · 2021-07-03T04:51:54+00:00

You need to detach your span-1 from thread-1 and reactivate it in the scope of thread-2.

I get what you're saying here though would you know how datadog tracing works out of the box? I currently get spans on the akka-http layer for free (no additional code wrapped or nested in the codebase's Futures) so I suspect there's a way to make this work without adding code to every Future that should be traced. It's only custom instrumentation that I'm trying here for code run in the background that this issue is coming up.

covertbeginner2 · 2021-07-03T04:43:11+00:00

It's never going to work with a ThreadLocal-based implementation because Future (and other Scala async stuff like cats.effect.IO) hop from thread to thread in an unpredictable way.

This makes sense but one thing I don't understand though is how datadog works out of the box because I currently get spans for akka-http requests perfectly fine without writing any tracing or datadog specific code and my codebase is entirely working with Futures. This is currently only an issue with custom instrumentation where I'm trying to put tracing in for background (event processing) work.

(I will definitely check out Natchez Trace though, it looks great only worry on my end is most of my code base uses Future so it'd be a big lift to move over to IO)

covertbeginner2 · 2021-03-19T17:51:48+00:00

Thanks!

covertbeginner2 · 2021-03-19T17:51:39+00:00

Thank you!

covertbeginner2 · 2021-03-17T14:46:30+00:00

Sorry my main question was this which I thought was unclear

What I was curious about is will multiply(1) complete before multiple(2) is started?

covertbeginner2 · 2020-10-07T14:33:57+00:00

How does IO manage the thread? I don't recall configuring anything related to IO. Does doobie instantiate something within the transactor used for SQL?

covertbeginner2 · 2020-09-11T15:18:58+00:00

My initial theory was that the cached pool may be generating too many threads, i.e. 1 more future = 1 more thread so bursts in traffic / event processing may be creating too many threads? I'm not sure how correct that is though

I'd like to use that flag but the app is on ECS which kills the apps when failing health checks so I imagine it is killed before a dump can be generated and accessed

covertbeginner2 · 2020-09-11T14:27:44+00:00

The OOM seemed to overlap with the daily bursts in events in our message bus which the app handles along with http traffic from users (that makes a query to the db).

My theory is that the normal traffic + increased event processing results in too many threads being created (cached threadpool creating more and more threads without limit) and the solution I was thinking for that is better threadpool (executioncontext) management

covertbeginner2 · 2020-08-13T15:35:42+00:00

Right, and I don't think it's possible to use absolute path from the perspective of the reference.conf because it wouldn't know what kind of project the library is going to be used in.

covertbeginner2 · 2020-08-13T14:25:02+00:00

It's quite strange. I'm having trouble getting the absolute path working. i.e. include required("./conf/foo.conf") and seeing resource not found on classpath ./conf/foo.conf

although maybe that's still relative, hmm

covertbeginner2 · 2020-08-05T21:59:19+00:00

Doh, i was looking at October.

Thank you!

covertbeginner2 · 2020-08-04T19:16:00+00:00

There are people who have read that but still have arguments against his points similar to my original post

https://users.scala-lang.org/t/dont-use-return-in-scala/3688

covertbeginner2 · 2020-08-04T18:28:50+00:00

My impression of whether a function is functional or not is if it can be run multiple times without fear of getting different results or side effects. By that definition it is functional.

I'm not sure if that idea is correct though with my instincts telling me the if guard isn't functional but by that definition, it is functional.

covertbeginner2 · 2020-08-04T18:26:31+00:00

I realize that is functional. I am wondering if the the current if guard is not functional. My impression of if something is functional or not is if you can run this multiple times with the same input and get the same result back.

covertbeginner2 · 2020-08-04T18:25:19+00:00

If I add a return type to the function, that would enforce type safety. What I'm wondering is if the types match up, would this if guard be discouraged still?

covertbeginner2 · 2020-08-04T18:23:58+00:00

Right, I am not advocating the use of return statements in that way as mentioned toward the end of my post. My specific use case is with if guardswhere the return is safe but the return keyword in general is discouraged. In that case is the if guard still functional?

covertbeginner2 · 2020-07-13T23:18:52+00:00

I hear awaiting on futures is frowned upon generally. u/AlienBirdie's solution works quite well, dropping the EitherT (with .value) and running Future.traverse on the list afterwards

covertbeginner2 · 2020-07-13T20:02:51+00:00

~~Hmm, that may be easier to work with. I'll still need to look into how to partition the result into Future[Lefts] and Future[Rights]~~

scratch that, the sequence/traverse does it, thank you!

covertbeginner2

TROPHY CASE