gnosek · HackerTrans

vor 9 Monatendiscuss

Or you can set the vm.swappiness sysctl to 0.

vor 2 Jahrendiscuss

I'm happy with a TFA Dostmann 31.5009.02 Monitor CO2 AIRCO2NTROL Coach. Does what it says and you can get the measurements over USB if you want too.

gnosek

vor 2 Jahrendiscuss

[yet another reference to Ansible, sorry! :)]

This looks like infinity times better than Ansible in some cases and somewhat worse in others (python.call every time I'd need to access a previous operation's result feels clunky, though I certainly understand why it works that way).

Do you think it would be possible to use Ansible modules as pyinfra operations? As in, for example:

  - name: install foo
    apt:
      pkg: foo
      state: present

could be available as:

  from pyinfra import ansible

  ansible(name='install foo').apt(pkg='foo', state='present')

where the `ansible` function itself would know nothing about apt, just forward everything to the Ansible module.

Note 1: I know pyinfra has a way to interface with apt, this is just an example :) Note 2: It's just my curiosity, my sysadmin days are long gone now.

gnosek

vor 3 Jahrendiscuss

https://rnote.flxzt.net/ is pretty nice on Linux (for one-off drawings, not really for organizing them I think)

gnosek

vor 3 Jahrendiscuss

If I understand correctly, you mean turbo roundabouts https://www.ms2soft.com/resources/turbo-roundabouts/ ?

If so, IMO they're the best thing that happened to roundabout design ever. You do need to choose a lane before entering but it's similar to how you'd choose a lane on a traditional two-lane roundabout. However, then you don't change lanes while on the roundabout, with ~zero visibility to the other lane while turning in a fairly tight circle.

This may differ across countries but around here you're supposed to: * pick the inner lane unless you're taking the first exit (to the right) * change to the outer lane just before your exit

which is about infinity times more stressful in traffic (you have very little time, it's hard to see the outer lane and the outer lane has right of way). It would work fine if everybody followed the rules but 1. they don't since it's unsafe in a tragedy of the commons sort of way and 2. then you end up with an informal turbo roundabout anyway.

A compromise that's becoming fairly common is a "soft" turbo roundabout where the lanes are divided not by ridges but by solid lines you can't cross only legally, not physically :)

gnosek

vor 3 Jahrendiscuss

> some risk of a null slipping into a filename

Only in some fairly esoteric environments: https://en.wikipedia.org/wiki/Filename#Comparison_of_filenam...

gnosek

vor 3 Jahrendiscuss

> Also, side note, the “copy con outputfilename.txt” idiom is one that I still can’t ever remember how to do the equivalent on UNIX/Linux!

cat > outputfilename.txt

gnosek

vor 3 Jahrendiscuss

I used external FHD displays and the result was a blurry mess with obvious fractional scaling applied (nothing was aligned to pixel boundaries)

gnosek

vor 5 Jahrendiscuss

    fn twiddle<I>(foozles: I)
    where
      I: Iterator<Item=Foozle>

(or probably IntoIterator<Item=Foozle>). `impl T` is (modulo some details I don't remember right now) just syntactic sugar for this.

gnosek

vor 5 Jahrendiscuss

Same. It takes a little effort to read but it's understandable and it does feel Croatian or thereabouts. On a somewhat funny note, Chrome decided to translate the page in Interslavic from Czech to Polish and did a passable job.

What I find fascinating about Slavic languages is that I can speak Polish in Slovakia*, get responses in Slovak and mostly understand each other. It has basically zero chance of success in the Czech Republic to the point where it's easier to find an English speaker. I speak neither Czech nor Slovak and I cannot really distinguish them but I had this experience multiple times. In written form, both are similarly understandable to me (I can get the gist and guess the rest).

* the caveat about szukanie czegoś do picia still applies though.

gnosek

vor 6 Jahrendiscuss

> It really depends on what the meaning of None is.

Exactly. This will generally be application specific so we can't choose The One Right Definition for adding `Option<i32>`s.

> Yours make sense if it means "zero", but that's far less useful.

Not in my experience but I agree there are different situations. Personally, I'd default to `Option<i32>::None` meaning "no number there, so just skip it"[1] and prefer `Result<i32, E>::Err` to denote "there should be a number here but we don't have one", which would behave like a SQL NULL (propagate in all calculations).

1. What's the length of data in a header-only packet? I wouldn't say it's zero, especially when trying to fit a read() like API on top of a framed protocol (read() returning Ok(0) marks the end of file).

gnosek

vor 6 Jahrendiscuss

I agree with all your other points but

> > We can’t perform arithmetic on an Option<int> any more than we could on a List<int>.

> Why not? One sensible definition is (...)

It's not the only sensible definition. It would be equally sensible to implement it as:

    Some(x) + Some(y) => Some(x+y)
    Some(x) + None => Some(x)
    None + Some(y) => Some(y)
    None + None => None

gnosek

vor 6 Jahrendiscuss

Is this viable as a backup/archive format? Would it make sense to e.g. have an incremental backup as a DwarFS file, referring to the base backup in another DwarFS file?

gnosek

vor 6 Jahrendiscuss

Exclamation mark. e.g.

    println!("hello, world");

    todo!();

are macro invocations.

gnosek

vor 6 Jahrendiscuss

> I mean, how many connection types exist?

Two? https://developer.android.com/reference/java/net/URLConnecti...

gnosek

vor 6 Jahrendiscuss

    ifconfig enp2s0:1 192.168.1.42

Now try

    ip addr add dev enp2s0 192.168.42.1/24

and observe how ifconfig ignores the second IP on the same interface. enp2s0:1 is an alias to enp2s0, not enp2s0 itself. To replicate your ifconfig command, you'd use

    ip addr add dev enp2s0 192.168.1.42/32 label enp2s0:1

and then it shows up in ifconfig as well.

gnosek

vor 6 Jahrendiscuss

Not sure how this integrates with Go's database drivers but from the Postgres side:

1. NULLIF(the_uuid, '0000-000000-00000-0000')

https://www.postgresql.org/docs/current/functions-conditiona...

2. on insert/update rules to rewrite the uuid (probably using NULLIF)

https://www.postgresql.org/docs/current/sql-createrule.html

gnosek

vor 7 Jahrendiscuss

In Poland the in-house bakery in a grocery store is the cheap and convenient way to get bread if you can't be bothered to get actual quality (not made from deeply frozen dough).

So if the Polish baseline is super fancy for NL, NL is better than UK and UK baseline is artisanal US bread, I wonder what baseline US bread looks like. It's made of sponge and sugar?

gnosek

vor 7 Jahrendiscuss

Polish has darmowe (as in beer) and wolne (as in freedom). Ironically, wolne also means slow.

gnosek

vor 7 Jahrendiscuss

Long-time user of Terraform here, never used CloudFormation. Where does CloudFormation beat Terraform?

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