#nixos-chat on 2019-09-20

2018-10-11 19:40 gchristensen changed the topic of #nixos-chat to: NixOS but much less topical || https://logs.nix.samueldr.com/nixos-chat

00:06 drakonis_ has quit [Ping timeout: 246 seconds]

00:07 drakonis_ has joined #nixos-chat

00:16 drakonis1 has joined #nixos-chat

00:19 drakonis_ has quit [Ping timeout: 265 seconds]

00:20 <samueldr> oops, turns out I forgot to -enable-kvm in my qemu setup for my tests

00:20 <samueldr> it wasn't *that* slow, but I was starting to doubt

00:21 <gchristensen> nice go-fast option

00:21 <samueldr> is there gcc --go-fast?

00:21 <gchristensen> -enable-kvm apparently

00:49 drakonis1 has quit [Ping timeout: 258 seconds]

00:49 drakonis1 has joined #nixos-chat

00:56 drakonis_ has joined #nixos-chat

00:57 drakonis1 has quit [Ping timeout: 240 seconds]

01:06 jasonrm_ has quit [Quit: ZNC 1.7.3 - https://znc.in]

01:54 waleee-cl has quit [Quit: Connection closed for inactivity]

04:05 drakonis has quit [Read error: Connection reset by peer]

04:25 cdepillabout has joined #nixos-chat

04:48 endformationage has quit [Quit: WeeChat 2.5]

06:15 cdepillabout has quit [Ping timeout: 245 seconds]

06:22 <ashkitten> i love how you can make a git hook that's like, "before you commit, don't."

06:22 <ashkitten> evil prank: `echo '#! /usr/bin/env false' > .git/hooks/pre-commit && chmod +x .git/hooks/pre-commit`

06:30 evanjs has quit [Read error: Connection reset by peer]

06:31 evanjs has joined #nixos-chat

06:43 <ar> http://lists.llvm.org/pipermail/llvm-dev/2019-September/135304.html >Support for asm goto, enabling for example the mainline Linux kernel for x86_64 to build with Clang

07:23 <eyJhb> Another update, another VBox rebuild

07:29 veske has joined #nixos-chat

07:34 veske has quit [Quit: This computer has gone to sleep]

08:16 vdemeester_ has joined #nixos-chat

08:17 vdemeester_ has quit [Client Quit]

08:33 jD91mZM2 has quit [Quit: ZNC 1.7.3 - https://znc.in]

08:34 jD91mZM2 has joined #nixos-chat

09:44 __monty__ has joined #nixos-chat

09:45 jD91mZM2 has quit [Quit: ZNC 1.7.3 - https://znc.in]

09:58 LnL has quit [Quit: exit 1]

09:59 LnL has joined #nixos-chat

10:03 jtojnar has quit [Quit: jtojnar]

10:29 <emily> NIX PUZZLE: how do you write the literal string '${foo}' inside a '' ... ''-quoted string? ANSWER: '' ... ''\'''${foo}' ... ''

10:29 <emily> if anyone has a less horrifying answer to this puzzle...

10:29 <__monty__> ,''$

10:30 <__monty__> ,$

10:30 <__monty__> : s

10:31 <joepie91> emily: "bar '\${foo}' baz" ?

10:31 <joepie91> eh

10:31 <__monty__> ,escape''

10:31 <{^_^}> '' two single quotes: ''' bash curly bois: ''${} newline: ''\n tab: ''\t any character x: ''\x ''

10:31 <emily> it's inside an existing multi-line '' ... '' script

10:31 <joepie91> emily: "bar '\${foo}' baz" ?

10:31 <joepie91> backslash got lost in transit :P

10:31 <emily> it didn't, but again, it's inside an existing multi-line '' ... '' script.

10:31 <joepie91> hm

10:31 <joepie91> you can't escape $ with ?

10:31 <__monty__> I think `'' ... '''${foo} ... ''` should do?

10:32 <emily> __monty__: error: undefined variable 'foo' at (string):1:13

10:32 <emily> the syntax is ambiguous.

10:32 <emily> nix puzzle additional recommendations: try solutions in nix repl before suggesting them :p

10:32 * joepie91 was too busy yelling on Twitter :P

10:39 <__monty__> (╯°□°）╯︵ ┻━┻

10:40 <__monty__> > '' ... '\''${foo}' ... ''

10:40 <{^_^}> "... '\\${foo}' ... "

10:40 <__monty__> Score!

10:40 <__monty__> -_-

10:40 <__monty__> No, dammit!

10:41 <emily> not quite the same :)

10:41 <emily> the correct output in nix repl is "... '${foo}' ... "

10:41 <emily> which, uh, is incorrect syntax I guess

10:41 <emily> but that's how it displays it

10:44 <__monty__> > '' ... '$\{foo}' ... ''

10:44 <{^_^}> "... '$\\{foo}' ... "

10:44 <__monty__> Wth is with this \ getting escaped?

10:45 <__monty__> > '' ... ''\'''${foo}' ... ''

10:45 <{^_^}> "... '${foo}' ... "

10:45 <__monty__> > '' ... \ ... ''

10:45 <{^_^}> "... \\ ... "

10:45 jD91mZM2 has joined #nixos-chat

10:46 <__monty__> Yeah, see, I think I'm actually right and the proposed solution is just wrong : >

10:47 <emily> huh?

10:48 <emily> there should be no \ in the output at all.

10:49 <emily> here's a simpler test harness:

10:49 <emily> nix-repl> '' ... ''\'''${foo}' ... '' == "... '\${foo}' ... "

10:49 <emily> true

10:49 <emily> nix-repl> '' ... '\''${foo}' ... '' == "... '\${foo}' ... "

10:49 <emily> false

10:54 <__monty__> > " ... '\${foo}' ... "

10:55 <{^_^}> " ... '${foo}' ... "

10:55 <__monty__> -_-, you've made a powerful enemy today, {^_^}

11:11 kcalvinalvinn has joined #nixos-chat

11:21 <infinisil> ,escape-special

11:22 <{^_^}> A $${foo} will insert the literal string "$${foo}". Use \$${foo} in " strings or ''$${foo} in '' strings to have foo interpolated

11:23 <infinisil> > '' ${"'\${foo}'"} ''

11:23 <{^_^}> "'${foo}' "

11:24 <infinisil> emily: Well there's this, but that's even worse :P

11:24 <emily> not sure which of ${"'\${foo}'"} and ''\'''${foo}' is uglier, yeah :p

11:24 <emily> who decided to make the escape character the quote-close delimiter??

11:26 <__monty__> Someone who probably felt pretty darn smart.

11:31 <etu> And regret it.

11:33 <__monty__> I think the motivation was how do we come up with something you can simply paste most any bash script in?

11:34 <__monty__> But then they went, let's steal bash's syntax for curly-bois and ruin the pretty picture.

12:02 <infinisil> Very interesting ideas in that talk: https://lobste.rs/s/fwt85q/reinventing_home_directories_systemd

12:07 <infinisil> Making home directories self-contained, extensible user records, encrypting home on suspend

12:08 <etu> This sounds a bit like some of the things that I see people doing with home directories on tmpfs

12:09 <infinisil> Not quite

12:10 emily has quit [Remote host closed the connection]

12:10 * etu haven't watched the talk yet

12:12 jD91mZM2 has quit [Quit: ZNC 1.7.3 - https://znc.in]

12:12 jD91mZM2 has joined #nixos-chat

12:13 <infinisil> The video is much longer than the talk btw, it starts at 9:57 (cut off at the start), goes until 39:22, and I recommend 1.5x speed

12:14 emily has joined #nixos-chat

12:14 <gchristensen> 1.5x speed is basically made for tech talks

12:15 <__monty__> Yes, start at 1.5x and try to work up to 2x.

12:16 <__monty__> Or just scroll through the presentation. Got the gist and didn't take me 10 min.

12:37 mog has joined #nixos-chat

12:44 drakonis_ has quit [Ping timeout: 245 seconds]

12:49 drakonis_ has joined #nixos-chat

12:54 drakonis_ has quit [Ping timeout: 265 seconds]

13:05 drakonis_ has joined #nixos-chat

13:21 <fpletz> the postgres talk from that same conference should be watched at 0.75x though ;)

13:53 psyanticy has joined #nixos-chat

14:21 endformationage has joined #nixos-chat

14:26 waleee-cl has joined #nixos-chat

14:38 __monty__ has quit [Ping timeout: 258 seconds]

14:59 <eyJhb> Is there any documentation for `/proc/sys/net` e.g. ip_forward some place, and the other options?

15:54 <ajs124> eyJhb: a little late, but https://www.kernel.org/doc/html/latest/admin-guide/sysctl/net.html

15:58 pie_ has quit [Ping timeout: 265 seconds]

15:58 drakonis_ has quit [Ping timeout: 265 seconds]

15:58 drakonis has joined #nixos-chat

16:08 <gchristensen> today's office hours (in ~2h50min - 1900UTC / 3pm america/new_york) is going to be a question & answer format, plus PR review. if you're interested, come to #nixos-officehours. I'd love to get a few questions and PRs lined up ahead of time!

16:19 peel has joined #nixos-chat

16:33 tokudan has quit [Quit: Dunno.]

16:36 tokudan has joined #nixos-chat

16:38 <eyJhb> Better late than never ajs124 ! Thanks :) Will look at it :)

16:51 drakonis has quit [Ping timeout: 240 seconds]

16:55 drakonis has joined #nixos-chat

17:09 drakonis has quit [Read error: Connection reset by peer]

17:10 drakonis has joined #nixos-chat

17:19 drakonis_ has joined #nixos-chat

17:19 drakonis has quit [Ping timeout: 245 seconds]

17:21 drakonis has joined #nixos-chat

17:24 drakonis_ has quit [Ping timeout: 240 seconds]

17:25 jtojnar has joined #nixos-chat

18:01 Jackneill has quit [Read error: Connection reset by peer]

18:05 drakonis_ has joined #nixos-chat

18:07 <drakonis_> https://cfp.all-systems-go.io/media/homed-asg2019.pdf

18:09 <drakonis_> https://streaming.media.ccc.de/asg2019/relive/164 the recording

18:13 <qyliss> ... 1/3 of featured speakers are facebook

18:13 <drakonis_> it will make someone mad

18:13 <drakonis_> something something poettering

18:14 <samueldr> drakonis_: what do you mean by that?

18:15 <drakonis_> mentioning its a poettering talk normally brings the average linux neckbeard into a frothing rage

18:15 <samueldr> looks like you're actively baiting, which is not a good thing to do :/

18:16 <drakonis_> i linked it here because it is useful to nixos

18:17 <drakonis_> no baiting here

18:18 <samueldr> so saying "something something poettering", then "mentioning it[...] normally brings [euphemisms I don't care to repeat] into a frothing rage" is not baiting? sorry then

18:18 <drakonis_> okay, maybe that was, unintentionally baiting

18:19 <drakonis_> my bad

18:20 <drakonis_> i'll refrain from it

18:27 buckley310 has quit [Quit: Ping timeout (120 seconds)]

18:28 buckley310 has joined #nixos-chat

18:28 ivan has quit [Remote host closed the connection]

18:28 ldlework has quit [Quit: co'o ro do]

18:28 ivan has joined #nixos-chat

18:28 kini has quit [Remote host closed the connection]

18:28 MichaelRaskin has joined #nixos-chat

18:29 ldlework has joined #nixos-chat

18:35 kini has joined #nixos-chat

18:51 <eyJhb> infinisil: Firstly I have to get the client connected, after that it is the iptables that will screw me over. Need my router/gateway to redirect a single IP to use tun0 :/ And also to setup some iptables to accept specific ports and route to that host

18:51 <eyJhb> My iptables skillz are basically.. Non-existing

18:52 <infinisil> Hm mine are about the same

18:52 <infinisil> Do you have the client connected though?

18:53 <eyJhb> Nope! Working on it, but I just started. Haven't even uploaded the keys etc.

18:53 <eyJhb> So I will pep when something works, and I am stuck :D

18:53 <eyJhb> Hoping I can get by using some of the same rules I have setup on my server, which redirects the traffic to the tunnel to beging with

18:54 <infinisil> eyJhb: I mostly used this as a start for my config: https://nixos.wiki/wiki/OpenVPN#Simple_one-client_VPN_gateway_server

18:57 <eyJhb> Hmm... I would have guessed to use `services.openvpn.servers.<name>.config` for clients as well?

18:58 <infinisil> Yup

19:04 pie_ has joined #nixos-chat

19:21 tokudan has quit [Quit: Dunno.]

19:23 qyliss has quit [Quit: bye]

19:24 tokudan has joined #nixos-chat

19:27 qyliss has joined #nixos-chat

19:52 savanni has joined #nixos-chat

20:19 psyanticy has quit [Quit: Connection closed for inactivity]

20:48 <eyJhb> infinisil: so something is running now, so I just need to route it somehow :p

21:00 jasonrm has joined #nixos-chat

21:34 __monty__ has joined #nixos-chat

21:41 __monty__ has quit [Quit: leaving]

22:43 jtojnar has quit [Remote host closed the connection]

22:43 jtojnar has joined #nixos-chat

22:52 jtojnar_ has joined #nixos-chat

22:53 jtojnar has quit [Ping timeout: 245 seconds]

22:54 jtojnar_ is now known as jtojnar

22:58 endformationage has quit [Quit: WeeChat 2.5]

23:06 tokudan has quit [Quit: Dunno.]

23:09 tokudan has joined #nixos-chat

23:22 tokudan has quit [Quit: Dunno.]

23:25 tokudan has joined #nixos-chat

23:35 drakonis_ has quit [Read error: Connection reset by peer]

23:39 drakonis_ has joined #nixos-chat

23:42 drakonis has quit [Ping timeout: 240 seconds]

23:43 drakonis has joined #nixos-chat

23:45 drakonis_ has quit [Ping timeout: 268 seconds]

23:55 endformationage has joined #nixos-chat