<catern>
that will fail immediately if the path is not valid and not substitutable
<catern>
nix, why do you do this to me :(
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<Dezgeg>
maybe nix-store -r --option system dummy-system
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<Dezgeg>
+ the path
<mpickering>
Unode: Probably need to update nixpkgs
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<mpickering>
or create an attribute for 822 which points to 821
<Dezgeg>
or a dummy/nonexistent build-hook
<Unode>
mpickering: hum... I just did. I'm a little confused right now. grepping for ghc822 or ghc821 results in almost the same code, yet 821 builds while 822 doesn't
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<catern>
Dezgeg: oh hey! great idea about --option system dummy-system
<catern>
yeah, that works!
<catern>
my way works by (ultimately) calling ensurePath
<catern>
which is kind of precisely what I want
<Dezgeg>
I agree it would be nice to have a way to disable local building, I have sometimes needed that as well
<NixOS_GitHub>
[nixpkgs] andir pushed 2 new commits to release-17.09: https://git.io/vNn1v
<NixOS_GitHub>
nixpkgs/release-17.09 bc66772 Andreas Rammhold: Merge pull request #33845 from andir/17.09/libxml2...
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<Unode>
hum... how does nixos set NIX_PATH on the user environment? I'd like to customize one of the definitions but (if possible) would like to avoid doing it in the user's shellrc files.
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<joshuaks>
Is the a configuration.nix type thing for macOS?
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<joshuaks>
I don't expect to configure the system. Just a base package list.
<pkill9>
Unode: you could do it in ~/.profile
<Unode>
joshuaks: configuration.nix is for NixOS. If you are only using Nix, configuration.nix is not what you want. Try /etc/nix/nix.conf instead.
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<pkill9>
then again idk
<Unode>
pkill9: :) that was my question
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<pkill9>
i'm not sure where mine is set
<Unode>
I just didn't want to do it out of ignorance and be bitten in the future.
<tilpner>
There is nix-darwin which allows you to do Nixos-like configuration. You don't need it for simple package lists though
<joshuaks>
A quick google search. How do I specify packages in nix.conf?
<Unode>
pkill9: Some time ago I decided to use a manual clone of the channel instead of relying on nix-channel --update. It's stored in /var so that all users can read it. Stuff mostly works but NIX_PATH still got set nixpkgs=/nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs
<joshuaks>
Currently I have a default.nix at $HOME and run nix-shell as part of my shell init.
<joshuaks>
Nix-darwin looks dope tilpner
<Unode>
joshuaks: what do you want to do exactly?
<LnL>
o/
<joshuaks>
I'm coming from Brew. So some sort of master list of packages?
<Unode>
joshuaks: that is stored in your user's profile
<Unode>
joshuaks: do you want to have different packages for different environments or one single place with all packages for your user?
<joshuaks>
I've spent way too much time trying to figure that out
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<joshuaks>
Now, I'd like to ask your opinion. Was my previous solution okay or is more of an anti-pattern / the wrong way to do things?
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<Unode>
joshuaks: it's not entirely clear what you were doing before.
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<rain1>
idea: a version of nix but /bin/bash exists
<joshuaks>
Okay, I'll try to explain. If it's too much just let me know.
<joshuaks>
I was trying to bootstrap from a base configuration, so keep that in mind.
<LnL>
so you essentially where always in a nix-shell?
<joshuaks>
In my bash_rc I has 'nix-shell -p zsh --command zsh'
<joshuaks>
LnL: yes
<joshuaks>
And I had a default.nix at $HOME so it would pull in all my desired base packages.
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<Unode>
joshuaks: do you have only one set of packages?
<joshuaks>
Uhm. I'm not sure what you mean.
<Unode>
I have different packages for different projects. Some of which conflict with each other. So I need different environments for different projects.
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<joshuaks>
Ah. No, but it is my intention to get there eventually.
<LnL>
I do that on a per project basis
<catern>
"to build this path, we need the fixout inputs required to realise the input paths of this path's deriver"
<catern>
what a sentence
<Unode>
catern: language is hard at times
<catern>
it's a sentence I wrote :)
<Unode>
LnL: on a completely different topic, you wouldn't happen to know how/where does nixOS set NIX_PATH globally? (i.e. what gets set in the users' environment). I'd like to customize the location of nixpkgs=
<joshuaks>
In my head, I would have a default.nix in home for my base working shell, then in my repos/projects I would have specialized default.nix's for the proejct. For example, ghci wouldn't be in $HOME/default.nix but vim would be.
<joshuaks>
Which would ultimately result in running nix-shell's inside each other
<LnL>
Unode: it's set in bashrc or whatever based on the value of nix.nixPath
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<Unode>
ok, I don't have that on my configuration.nix so I guess it's using the default. Time to change that. Thanks!
<LnL>
joshuaks: that works but I would use nix-env for the global things, then you don't have to deal nested shells and other weirdness
<LnL>
you might also run into trouble when something breaks in the global environment, since opening a new shell will try to update everything
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<joshuaks>
Ok. One more question. Can I specify the version of a program I want in my config?
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<joshuaks>
I'm trying "docker-17.11.0-ce" but the install throws an error saying it doesn't expect an int
<LnL>
yes, if we have multiple versions packaged
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<Unode>
joshuaks: in that case try docker_17_11 instead
<Unode>
use the 'attribute name'
<LnL>
you can even use multiple versions of nixpkgs if you want :D
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* Unode
has nixpkgs.git for that purpose
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<tubman_GEOW3Z>
▄▄▄▄▄▄▄▄▄▄▄▄▄ ##FEMINISM IS OFFERING TRAINING IN TAPPING INTO YOUR INNER FETISHES!! EL IS IN #FREENODE FOR ANY QUESTIONS rqqvzr: raynold bennofs ariutta ▄▄▄▄▄▄▄▄▄▄▄
<tubman_GEOW3Z>
▄▄▄▄▄▄▄▄▄▄▄▄▄ ##FEMINISM IS OFFERING TRAINING IN TAPPING INTO YOUR INNER FETISHES!! EL IS IN #FREENODE FOR ANY QUESTIONS uooysgemjr: danyc0 rogue_koder m0rphism ▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄
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<gchristensen>
neat.
<joshuaks>
Cool I got it working.
<joshuaks>
In this case, I'm install docker. And it will always point to that version now?
<LnL>
!m gchristensen
<[0__0]>
You're doing good work, gchristensen!
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<LnL>
oh, the wasn't here?
<Unode>
the?
<gchristensen>
LnL: nah, they just spammed too fast and got kicked from the network
<gchristensen>
Unode: it is a nickname I have
<Unode>
it's 'the' nickname ;)
<samueldr>
couldn't even be bothered to spam right... that's new
<Unode>
these days, it's safe to assume that any line with more than 2 nick/notices is spam. Wonder if I can configure my client to automatically ignore those...
<gchristensen>
that isn't quite true
<samueldr>
ugh, they're doing it right in another channel though
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<Unode>
gchristensen: I'd love to see some numbers on this though. My impression is that false positives would be quite low.
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<samueldr>
maybe it would help when there's nothing else said than that
<samueldr>
only thing they do is join to highlight multiple people per message
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<LnL>
you could probably do heuristic based on highlights/carps/hashtags/... that's pretty good
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<paraseba>
I have submitted a PR for a new package following the recommendations to contribute, is there some kind of process to get it reviewed and merged?
<samueldr>
submitting it starts the process, afaik
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<Unode>
what is the recommended way to have local mail delivery on NixOS? The manual doesn't seem to include any reference on this point.
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<bennofs>
Unode: you'd need to run a mail server I guess?
<bennofs>
so postfix/exim/msmtp/opensmtpd
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<Unode>
bennofs: trying postfix as we speak. Out-of-the-box configuration doesn't seem to do local delivery. Poking things a bit more.
<Unode>
Thanks
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<wilornel>
I am trying to install pip and virtualenv for python3 and am getting a collision: "collision between `/nix/store/v5nrdvadzwiirvh8b67gcq6xq9sf39lc-python3-3.6.4-env/bin/idle' and `/nix/store/cwxxbpfz2i2j34f3sgmd6vdl6wv98c2s-python3-3.6.4/bin/idle"
<wilornel>
I'm not sure what is the best way to handle these collisions for python modules
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<wilornel>
Ah, I might be able to just install pip first and then virtualenv
<disasm>
wilornel: first of all, don't install either :)
<wilornel>
Hmm
<wilornel>
`python3 -m pip` says "No module named pip"
<disasm>
if you want to use pip or virtualenv you should use nix-shell, but better yet is to write a default.nix
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<disasm>
If you try using pip or virtualenv outside of nix-shell, you're going to find a lot of pain
<disasm>
then you can use virtualenv and pip normally if you do that
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<disasm>
but the best way to use python with nix would be to just specify the dependencies you want in a default.nix file, or use pypi2nix
<wilornel>
where is default.nix file? How would I specify those dependencies? What about the way I am doing it now? What is wrong with it? It's not installing the packages under python3?
<wilornel>
this linked example will allow me to install these dependencies and not have to use nix-shell afterwards, right?
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<disasm>
wilornel: it depends... installing your application to nix you can use it without nix-shell but active development, you should always use nix-shell
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<disasm>
The way nix handles things, installing a python package in your path doesn't get it in your PYTHONPATH
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<wilornel>
right
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<wilornel>
if I could do `python3 -m pip install requests` with the python3 I installed using nixos, then it would be fine, right?
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<wilornel>
because that would install the package in the right location for the python3 package?
<disasm>
no
<wilornel>
darn, I see
<disasm>
I don't remember exactly, but I think that would try to write to the nix store
<disasm>
which would fail
<wilornel>
I see, because the nix store is read-only for normal users
<wilornel>
Alright, I'm trying the default.nix and nix-build approach and it's installing packages for python2.7 when I want then for python3
<disasm>
Since there is no global site packages that's writable (that would introduce state), we have nix-shell to get things in your path for development.
<wilornel>
I also tried pkgs.python3Packages.pyramid instead of pkgs.pythonPackages.pyramid
<disasm>
It goes the same for gcc, install gcc and you can't compile. Run nix-shell -p stdenv.cc and now you have gcc and stdlib in your path.
<wilornel>
what if it's not for development, just for running in production? nix-shell should be fine for that as well, right?
<disasm>
for running in production, you should use buildPythonPackage
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<NixOS_GitHub>
[nixpkgs] grahamc closed pull request #33792: scid-vs-pc: init at version 4.18.1 (master...scidvspc) https://git.io/vNGdl
<wilornel>
but running `nix-shell` with that code snippet in default.nix, I get "error: undefined variable 'buildPythonPackage' at /home/vagrant/python_dependencies/default.nix:3:1"
<disasm>
yeah...
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<disasm>
with import <nixpkgs> {};
<disasm>
at the top
<wilornel>
it's there
<disasm>
then you need the full path: python36.pkgs.buildPythonPackage
<wilornel>
doing `let buildPythonPackage = pkgs.python35Packages.buildPythonPackage; in` after the import helped
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<wilornel>
alright, yes
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<disasm>
yup, that works
<wilornel>
alrigh!!
<wilornel>
Now, do I want to use pip inside of that? I think so
<disasm>
no :)
<wilornel>
and if I do, I don't necessarily need virtualenv, right?
<wilornel>
no? why not, agh
<wilornel>
what if I use pip inside virtualenv?
<wilornel>
I'd like to be consistent with others who use `requirements.txt`
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<disasm>
so in your buildPythonPackage just specify buildInputs for build deps and propagatedBuildInputs for runtime deps
<disasm>
so... I think what you might be looking for is pypi2nix
<wilornel>
so pypi2nix will not fully convert requirements.txt to the corresponding correct requirements.nix
<disasm>
you could propagatedBuildInputs = builtins.attrValues python.packages; in a default.nix
<wilornel>
ah I think I see
<wilornel>
which does what?
<disasm>
and that would treat all deps as runtime
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<wilornel>
and would pytest be available from the cli?
<wilornel>
btw starting to try it out now
<disasm>
so... you should run pytest as part of your buildPythonPackage
<wilornel>
(What if I specify version -V "3.6" and some packages are only on 3.5 still? I wonder if that will be an issue...)
<wilornel>
aaah I'm getting issues already
<disasm>
checkInputs = [ pytest ];
<wilornel>
what's that?
<disasm>
that tells it to use pytest for running tests
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<disasm>
oh, and you need to sepcify the checkPhase
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<disasm>
something like this: checkPhase = "cd tests; ${python.interpreter} run.py --ignore py35 -k 'not test_defaults and not test_anchors_ignored'"
<wilornel>
and that would be part of what? the requirements.nix?
<disasm>
or, to run py.test directly: py.test -k "not test_input_output"
<disasm>
no, default.nix
<wilornel>
I find it strange that I would define how to run my tests with the tools of the package manager
<wilornel>
I guess that's utilizing the full power of nix
<wilornel>
but it would be less compatible with other installations
<disasm>
well, that way anyone that builds your project runs the tests :)
<wilornel>
I would like this to be easily transferrable elsewhere
<disasm>
yeah... pypi2nix would basically let you take your teams requirements.txt and get you an env in nix that you could develop
<disasm>
but without your whole team embracing nix (ops team, etc...) you won't get the full benefit out of nix, being able to package nix derivations, deploy them to systems on bare metal or the cloud, etc...
<disasm>
I'm kinda in the position at work right now where I use nix for my own sanity, and everyone else does whatever they want
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<disasm>
Which drives me bonkers, lol, why can't everyone see how awesome nix is and embrace it!
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<wilornel_>
I'm back! Ah, I dislike not having an instance always connected to irc
<wilornel_>
to freenode
<wilornel_>
disasm: did you say something when I was not on?
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<wilornel_>
I think it's uneasy to use nix outside of nixos
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<wilornel_>
ah logs show that I didn't send that... The way I like to use nix works best inside nixos. I find it hard to use elsewhere, and maybe your co-workers feel similarly about nix?
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<wilornel_>
Ah! And now my devise is out of space...
<wilornel_>
or maybe not... that's what pypi2nix says.. df -h says otherwise. I'm confused. I'm also running pypi2nix under nix-shell
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<wilornel_>
Ah! numpy/core/src/multiarray/lowlevel_strided_loops.c.src:1793:1: fatal error: error writing to /run/user/1000/cc0SKQ9V.s: No space left on device
<wilornel_>
So numpy is trying to write somewhere..
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<wilornel_>
actually /run/user/1000 is of size 100M, and has only 62M left, so maybe that is why it's failing indeed. I don't see why it uses that partition
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<chessai>
does anyone know if it's possible to specify caches within a nix expression, ie not just within /etc/nixos/configuration.nix?
<chessai>
it seems like that would be extremely useful on a per-project basis
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<dtz>
chessai: I think you can? But you need to be "trusted" or it needs to have been whitelisted in configuration.nix by a trusted user (or something). I'm not sure about all the trusted stuff O:)
<dtz>
but basically can't have users willy-nilly saying "import paths from $URL"
<dtz>
(for arbitrary URL's, since doing so is basically the same as letting users write to the store themselves :))
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<chessai>
dtz: looks cool
<chessai>
dtz: the link i mean
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<wilornel_>
It seems like nix-shell uses a specific filesystem and installing some packages from inside nix-shell using pypi2nix does not work. I think you're not supposed to do that, right?
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<wilornel_>
disasm: What if a package I am trying to install tries to do `from IPython...` , and pypi2nix did not install ipython before installing that package? Then I need to manually install ipython manually beforehand
<dhess>
seems fast elsewhere, oh well
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<dhess>
weird peering
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<wilornel_>
Alright, installing python modules in nixos is not easy. I'll move on to ubuntu for now then
<wilornel_>
Aaaah every time I come back to nix I'm almost there and then I have to switch for the sake of doing some progress in my work
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<wilornel>
Ah, I didn't mean to leave on that note earlier
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<wilornel>
I tried to install ipython from config.nix with (with python3Packages; python3.buildEnv.override { extraLibs = [ ipython ]; }), but I get a collision issue
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<angerman>
what's the state of provisioning a nixos machine from macos? can I use nixops?
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<wilornel>
angerman: You mean live spining up nixos on virtualbox using vagrant?
<angerman>
wilornel: I guess that's the only solution right now?
<angerman>
Maybe I should just install a nixos instance in parallels, and forget about macOS.
<dhess>
angerman: NixOps on macOS may work for you. It seems to be pretty hit-and-miss and depends on what you're trying to do.
<wilornel>
that's what I was able to set up today. I mean, I was able to set up nixos running on virtualbox without vagrant as well in the past
<dhess>
angerman: for example, you might be more successful if you're using nix-darwin (as in my experience, remote builds are much more reliable with nix-darwin than without).
<dhess>
angerman: and containers apparently do not work well when deployed from NixOps on macOS. There's a GitHub issue on that somewhere
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<angerman>
ok. So I have a server which runs nixOS. And I currently mange it by copying over a new configuration.nix, and run nixos-rebuild on the machine. That's all "ok" as the system has almost zero usage. But I'd like to optimize.
<dhess>
angerman: at the very least you will need an x86_64-linux remote builder. That can be a VM. LnL has a nix-docker repo that works well with nix-darwin
<wilornel>
Wait I forget why it would not be possible to use a virtualenv to install python packages?
<angerman>
dhess: do you have the nix-docker repo link? That would probably "just" work for me.
<angerman>
dhess: need to see how well nix-darwin works these days.
<angerman>
but I guess for just the nixops part it could be enough.
<angerman>
Might need some help migrating the existing on-server solution to nixops once this kind of works.
<wilornel>
angerman, dhess : on what you are discussing... I'd like to in the near future be able to run a VM locally and also remotely (not necessarily at the same time), and be able to sync their main changes back and forth easily, for example the changes in ~/.config/nixpkgs/config.nix . Is that what you're trying to do angerman
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<dhess>
angerman: nix-darwin seems to be working pretty well now. I'm using it on all of my Macs
<angerman>
dhess: good to know, maybe I should give it another go :)
<dhess>
assuming you are also using a multi-user install of Nix on your Mac
<angerman>
dhess: like almost every other software on macOS :p
<wilornel>
nix-docker mainly only has nix and not a full on nixos, right?
<wilornel>
dhess: wait, are you using nix inside a docker instance in order to manage packages present in the host (mac) fs/os?
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<angerman>
wilornel: well, I'd like to migrate my nixOS running server into something that I can provision with nixops from the outside, so yea I'll need to get the configuration off of the server prior to building and re-deploying.
<dhess>
wilornel: more or less, that is my understanding. It's good enough to be a remote builder with the nix:ssh container
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<dhess>
personally I have not used it
<wilornel>
I don't understand yet how do people use docker instances (guests) for a single process. How can that single process manipulate stuff in the host os or fs?
<dhess>
wilornel: no
<angerman>
The whole reason right now is that I want to automate hackage.mobilehaskell.org, to automatically rebuild on changes to the git repo (webhook) and for that need to look into building the infrastructure.
<dhess>
angerman: FYI you can run NixOps on a NixOS host and deploy NixOps to that same host
<wilornel>
dhess: I don't understand how you'd use a docker instance with a single process like nix and what for
<angerman>
dhess: yea, the remote-builder is actually something I'd rather prefer than building on the crappy VPS.
<angerman>
wilornel: docker is essentially just your provisioned virtualbox.
<dhess>
wilornel: For the nix-docker case on macOS, it would be purely to build packages for NixOS/x86_64-linux
<angerman>
wilornel: I've used docker to build linux binaries (deb8,deb9) with stack and cabal new-build.
<dhess>
angerman: well I would recommend you try, in this order: nix-darwin; nix-docker; configure the docker instance as a remote builder from the Mac; build a few x86_64-linux packages from the Mac using the nix-docker instance; NixOps
<dhess>
in increasing order of difficulty/things that can go wrong
<wilornel>
but then you're keeping the builds in the docker instance, and they are not used by the host machine, right?
<dhess>
wilornel: the builds will be copied back to the host machine, that is what a remote builder does; but in this particular case (macOS host building Nix pkgs on a Docker instance), the builds would not be *usable* by the host.
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<angerman>
dhess: yep, that sounds like a plan. Let's see how far I get.
<dhess>
they're only there so you can deploy them to x86_64-linux hosts from the Mac
<wilornel>
right, and so what is the purpose of the instance? I guess to later distribute the built packages to some servers?
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<dhess>
right
<wilornel>
Aaaaah I keep getting conflicts!
<dhess>
or even just to test packages on x86_64-linux, let's say if you're also building them for macOS
<dhess>
and you don't have a NixOS server lying around to do that
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<dhess>
so you're trying to make sure your packages build on x86_64-linux but you're not actually using them personally. The nix-docker instance would be great for that.
<wilornel>
Thanks dhess !
<dhess>
np
<wilornel>
I use `ignoreCollisions = true;` and it still tells me collisions are present and terminates on that moment
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<wilornel>
when I try to `pip install cffi`, gcc is not able to find ffi.h. So, in ~/.config/nixpkgs/config.nix I added libffi as a package to install and did `nix-env -iA nixos.myPackages`. However, the issue still happens
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<mog>
wilornel, it will always be seperate id use a nix-shell to do what you want
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<wilornel>
with a nix-shell I don't have enough space in tmpfs to run pypi2nix and install the dependencies.
<wilornel>
Ah, no I overcame that issue by increase the RAM I have on that VM
<mog>
it wont use any more resources in the shell
<mog>
well maybe a few trivial ones
<wilornel>
I had one package that was trying to do `from IPython import ...` when it was installing. That made it impossible to use pypi2nix
<mog>
but it wouldnt be any real difference size wise
<wilornel>
So, I tried virtualenv and that worked nicely
<wilornel>
yes yes, size was not the issue, I overcame that
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<simpson>
Hi! Once and for all, I'd like to deal with "This application failed to start because it could not find or load the Qt platform plugin", because I can't keep using a LyX from 2016.
<wilornel>
So with pypi2nix when I was running pypi2nix -V "3.6" -r requirements.txt it was complaining about IPython not being installed. IPython was one of the dependencies inside requirements.txt unfortunately, so I was not able to get that working nicely
<wilornel>
and virtualenv works very well
<wilornel>
I'm not sure what would be some reasons it can't find the libffi binaries
<simpson>
And the nixpkgs manual still has no advice about this Qt problem.
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<wilornel>
how to install libffi-dev on nixos? It cannot find that package
<wilornel>
I'll try with nix-shell again (BFSing the solution)
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<mog>
nix-shell -p python35Packages.cffi
<wilornel>
huh
<wilornel>
Waiting on this "Stage1: Downloading wheels and creating wheelhouse ..." . I don't know why it doesn't cache the files? maybe it does and I GC'd them
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<mog>
everything is cached unless you gc
<wilornel>
aaah I'm so eager to get this working! Alright, while I'm waiting on this, I'll think about how I'll get it working. running `pypi2nix -V "3.6" -r requirements.txt` complains about not having IPython. So, I will first run `nix-shell -p python3.ipython` and _then_ run pypi2nix
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<dtz>
maybe doesn't help re:lyx but it works here :(
<dtz>
i've found /installing/ qt things makes them work, as opposed to running from an output link or something
<dtz>
was kinda hoping it didn't work so I could help debug ;)
<dtz>
lopsided98: I think the infra just recently landed and needs a little pioneering to clean up ... mostly to clean up nativeBuildInputs and such :P
<dtz>
but I suppose it's not quite there yet OOB
<dtz>
but especially cross targetting ARM I think people are excited about
<lopsided98>
The cross built packages have different hashes from natively built packages
<dtz>
there's that aarch64 push to see if they can't get it working /supported for 18.03 or something
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<dtz>
lopsided98: oh, well okay. Is that a problem?
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<dtz>
err well apparently it is, haha. why is it, though? :D
<lopsided98>
Nix on my ARM machines doesn't use the cross built packages because it is looking for the native ones
<wilornel>
adisbladis: That did not solve the issue with installing ipykernel....
<wilornel>
I don't know how to continue. Virtualenv was working well, but pip (well, gcc) could not find the libffi headers. Now, I cannot install ipykernel even when I use pypi2nix
<dtz>
hmm, I see. Blargh that is annoying, I wonder what the best solution would be. ARM box runs native NixOS, because of course it does, it wants to query for various paths .... that cna't be provided by a cross builder.
<wilornel>
So should I use nix-shell before I use pypi2nix now? I'll try that but I don't know
<dtz>
in a "nix" way that makes sense, since cross-building is very likely not at all the same as what you'd get native (even if it "should" be), but... hrmph
<dtz>
need a "cross is okay" setting and a mapping that looks up the cross-built equivalents :D
<lopsided98>
I was thinking about a way to override certain packages to use the cross version
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<dtz>
I bet folks have some ideas and if they don't, it's something a bunch of people would be interested in trying to solve
<wilornel>
and running pypi2nix from inside nix-shell again complains about lack of space on the device...
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<dtz>
not sure how best to flag that attention, maybe an issue on github? hrm
<lopsided98>
Yeah, I might make an issue to discuss it tomorrow
<vaibhavsagar>
how do I override the `meta.platform` attribute of a package?
<wilornel>
is /run/user/1000 a nixos thing? How could I give it more space?
<wilornel>
mog, adisbladis , do you have any ideas?
<mog>
wilornel, what is your goal
<lopsided98>
dtz: My first goal is to use a cross compiled kernel (it takes 8-12 hours to build natively, versus 20 min on my build server), and it is relatively easy because it doesn't have any runtime dependencies
<wilornel>
I have two goals doing things this way. First, I'd like it to be easy to setup this project I am working on. I find that a declaration of packages the way I can do it in nix is very nice. Also, I want to learn more about how nixos works so I can better use it in the future
<wilornel>
Right now, I am trying to install the python dependencies of my project
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<wilornel>
However, I am hitting some issues. gcc cannot find libffi, and pypi2nix cannot use IPython even with -E python3Packages.ipython, and using nix-shell -p python3Packages.ipython before running pypi2nix makes it such taht I don't have enough storage space (I think it's a virtual fs) to install use pypi2nix and build the dependencies
<wilornel>
So I've tried three different methods and they have some hurdles. I think if I can get past one of them I might be able to move forward
<prak5190>
Hi, I have a nix-shell startup issue, is this a good place to ask for help ?
<lopsided98>
dtz: It's mostly I/O bound with a slow/possibly dying SD card, the builder is actually relatively powerful (ODROID-XU4)
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<wilornel>
mog: ^ I don't know if that was helpful
<wilornel>
doing `export TMPDIR=/tmp` before running pypi2nix now
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<dtz>
lopsided98: if its at all reasonable to /push/ configurations to the ARM machines (NixOps-style, or just copying closures) that might be enough to avoid having to tackle that problem...
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<wilornel>
Ah! using `nix-shell -p python3Packages.ipython` before running `pypi2nix -V "3.6" -E python3Packages.ipython -r requirements.txt` did not solve the issue of the setup.py of ipykernel not being able to import IPython......
<wilornel>
So I _guess_ that the issue is with pypi2nix, and will try to get pip (and gcc) to find libffi now...
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<wilornel>
wait, usings gcc in nixos will encounter similar issues to installing python modules in nixos, ?
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<simpson>
Yeah, in general, "installing" is going to lead to sadness.
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<wilornel>
hmmm....
<wilornel>
I don't know where to go from here
<simpson>
Well, where are you trying to go? Have you looked in pkgs/development/python-modules/ yet?
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<wilornel>
I feel like I've seen this situation before... :( working with nixos is many dejavus for me...
<wilornel>
hmmm
<makefu>
wilornel: yes, "installing" is not nixonic, you'd rather override or create new packages
<wilornel>
I was able to install cffi by specifying it in the config.nix as you just proposed and it works, but I don't know why I should be doing that there
<wilornel>
I say I was able. gcc is currently building it right now
<wilornel>
so some things will need to be declared in config.nix , and others can be taken care of by pypi2nix
<wilornel>
It's awesome! I think it's not intuitive yet for people who have always worked with imperative installation methods
<makefu>
wilornel: normally your config.nix should be empty ( /etc/nix/configuration.nix is different ) :)
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<wilornel>
wait what? Why would confix.nix be empty? I should declare my packages inside configuration.nix instead?
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<makefu>
wilornel: ah, maybe i misunderstood. you can configure your user stuff in config.nix, sure. i however try to keep everything in /etc/nix/configuration.nix to avoid too many different inputs
<wilornel>
ah, understood! I've seen the two alternatives but didn't know the difference. Thank you!
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<angerman>
looks like I have nix-docker working.
<dtz>
\o/
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<angerman>
now, I just need to figure out how to use nixops, and pull the current configuration from the server fist.
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<wilornel>
angerman: !!!!
<wilornel>
What did you do to get there?
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<angerman>
install nixos, install nix-darwin and install nix-docker.
<angerman>
pretty smooth sailing so far.
<angerman>
I believe the `latest` issue I ran into might have come from a stale rather old nix installation.
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<angerman>
can anyone point me to some documentation turning an existing nixos server into a nixops managed one?
<dhess>
angerman: have you used NixOps before?
<angerman>
apparently not :)
<angerman>
my "ops" was `scp configuration.nix server:/etc/nixos && ssh server nixos-rebuild --upgrade --switch`
<dhess>
angerman: I recommend you start with the NixOps manual, walk through the virtualbox example.
<angerman>
dhess: but in principle I'm not trying something Impossbile, am I?
<dhess>
no
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<dhess>
It's actually pretty trivial compared to just learning NixOps in the first place. There's not much to it. You just set up the host config the way you want, and deploy
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<dhess>
The NixOps deployment will basically take over the machine and you can just manage it with NixOps from that point forward
<dhess>
there isn't really any "conversion" needed. It just works.
<angerman>
dhess: that sounds pretty much like exactly what I want :-)
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<dhess>
yeah it's sweet
<angerman>
Just need to make sure it doesn't nuke my state.
<angerman>
still need to find a good backup solution.
<dhess>
It won't nuke things like home dirs
<dhess>
I believe it will just look like a new "rebuild" generation
<angerman>
i see. Well, thanks. I'll run through the vbox sample
<dhess>
Keep a root shell active on the host the first couple of times you deploy, in case you do something silly like forget to add your user account to sudoers or something like that :)
<dhess>
angerman: for backups I like tarsnap
<dhess>
The guy who runs it is FreeBSD's chief security officer, so he knows what he's doing.
<angerman>
dhess: yea. I've been looking into tarsnap a few times. Still don't know why I didn't follow suit.
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<wilornel>
angerman: so that is docker running inside a nixos instance?
<wilornel>
or is it running as a docker container?
<angerman>
wilornel: it's running a nixos instance as a docker container on macos.
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<vaibhavsagar>
angerman: are you trying nix again???
<angerman>
vaibhavsagar: well, I need to be perpared for your talk, no?
<vaibhavsagar>
good point :)
<angerman>
great the stale nixos install on my system is screwing everything up.
<wilornel>
angerman: wow! Alright, I might want to try that. I didn't understand what you meant by `install nixos . Is that inside a VM in virtualbox? Or was it from withing a Ubuntu container in docker? `
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<wilornel>
angerman so you have nixos installed on mac? Or do you mean your nix installation on mac?
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<angerman>
alright, let's try this again...
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<angerman>
nuked ~/.nix* and /nix hope that's enough
<angerman>
wilornel: well there's a few things to this. a) nix on darwin (use nix as a package manager for software on darwin); b) nix in docker (to build binaries for a linux based nixos install); c) nixops on macos, deploying to a linux vps running nixos.
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<angerman>
vaibhavsagar: I'm pretty sure you won't cover macos -> linux. only linux -> linux. so I'll need to have the first part down to make use of what you have to say :D
<angerman>
I only want to get his working so I can deploy a webhook triggerd auto-updating service for hackage.mobilehaskell.org
<wilornel>
Ah I see
<wilornel>
It would be really nice if I could learn from you how you got that set up
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<wilornel>
how did you learn all the low-level instrumentation required to build android apps with haskell?
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<dhess>
Dezgeg: you around?
<angerman>
wilornel: I've been hacking on ghc for a few years now.
<angerman>
I've just started documenting it a bit more starting last year.
<hyper_ch>
what is /nix/store/.links for?
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<wilornel>
Ah I see
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<wilornel>
Alright, I give up trying to install ipykernel using pypi2nix . I was able to install cffi and another module that was failing along cffi. But for ipykernel, which tries to use IPython, it seems like the python derivation (in /nix/store) that pypi2nix is using is different from the one that is installed by my config.nix
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<angerman>
ipython on darwin with nix? Yea, I've had that working *once*. And never again :(
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<wilornel>
I'm trying to get it workin on nixos in a vm on virtualbox with mac as the host
<wilornel>
But yeah... it's not straightforward
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<wilornel>
:( good night #nixos!
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<vaibhavsagar>
are you trying to use nix-docker as your build slave?
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<angerman>
yep
<dhess>
and your remote builder will need to have a user configured with the same name as sshUser, an authorized_keys with the pubkey corresponding to sshKey, and the user will need to be in the trustedUsers on the remote builder machine
<angerman>
dhess: I can build single packages
<dhess>
angerman: oh interesting
<angerman>
just nixops doesn't work.
<dhess>
well you might need supportedFeatures anyway
<dhess>
for things like the kernel etc
<dhess>
at least "big-parallel"
<angerman>
yea, I'll try to see what adding that do the darwin-config does
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<angerman>
hmm, that doesn't generate the machines files... I'm confused.
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<angerman>
dhess: do you have nixops working or just builing packagage?
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<dhess>
angerman: only building packages at the moment. I haven't tried NixOps yet. I might give it a go tomorrow to see if I can help you
<dhess>
and get it working for myself of course :)
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<dhess>
angerman: another difference is that I have actual NixOS hosts as my remote builders. I'm not using nix-docker
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<dhess>
angerman: but it's good to know that you've got that working for packages. I might add one anyway, to keep the hosts free for Hydra
<dhess>
angerman: have you tried building the kernel on the nix-docker remote? That would be a pre-requisite for NixOps deployments
<hyper_ch>
what is /nix/store/.links for?
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<adisbladis>
hyper_ch: Nix store optimisations
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<angerman>
dhess: no, I haven't. I've just built the `hello` package. And checked it ends up being the right architecture.
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<dhess>
angerman: try building linux, see if that works. It's probably sufficient just to see if it starts, no need to build the whole thing if you don't want to
<dhess>
that will demonstrate whether the "big-parallel" feature is a problem
<angerman>
that just grabbed the precompiled one :D
<dhess>
angerman: oh, you have to actually force it to build, otherwise it will just hit the cache
<dhess>
that doesn't mean anything :)
<dhess>
same goes for any other package you might have tried to build.
<angerman>
hmm so how do I force it?
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<dhess>
angerman: there is probably a way to do it for any package but I don't know how offhand. Do you have a personal project around with a default.nix or a release.nix file?
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<angerman>
`--check` seems to be the one.
<dhess>
oh cool
<angerman>
not the most intitive flag though.
<dhess>
that's good to know
<angerman>
error: a ‘x86_64-linux’ is required to build ‘/nix/store/ql6frh48fw1l7clqlpva9yxzn5ji8nwi-hello-2.10.drv’, but I am a ‘x86_64-darwin’
<angerman>
there we go.
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<dhess>
right
<dhess>
so ... your builder is not working
<sphalerite>
I want to make a systemd-nspawn-based container with ubuntu inside, I've got it running just fine using systemd-nspawn imperatively but now I want to put it in my nixos config and it's complaining about systemd.nspawn.<name>.execConfig.PivotRoot not existing
<angerman>
yea :( Got fooled by caching.
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<dhess>
pretty sure you will need that /etc/nix/machines file before anything will work
<dhess>
angerman: it's ok, happens to everyone the first time ;)
<angerman>
dhess: well I have cat /etc/nix/remote-systems.conf , but no machines file, which is confusing.
<sphalerite>
Is there a way to tell the systemd unit file generator "actually I'm pretty sure that is an option"?
<dhess>
angerman: with nix-darwin you don't need to create that /etc/nix/remote-systems.conf file (I assume you did that by hand yourself?), with the right config it will generate that file for you
<angerman>
dhess: no, nix-darwin created that one.
<dhess>
angerman: the directions in the nix-docker README probably do not assume you are running nix-docker, and/or were written before that stuff was working. LnL will be around soon I suspect, and he wrote all this and can help you
<dhess>
angerman: oh weird. For me it generates /etc/nix/machines
<dhess>
angerman: have you `nix-channel --update`d your darwin channel?
<dhess>
angerman: anyway don't despair, soon it will be working and it will all feel like magic :)
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<dhess>
and I assume docker_rsa.pub is in ~root/.ssh/authorized_keys on the Docker container with the proper permissions etc?
<angerman>
yep. I can use that to ssh into it.
<dhess>
remote build errors are notoriously opaque :(
<dhess>
ok that's good
<dhess>
oh
<dhess>
right
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<dhess>
root on your Mac will need the SSH host key of the Docker container
<dhess>
like in /var/root/.ssh/known_hosts
<angerman>
root? well. so root might need the ssh config as well.
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<dhess>
yeah remote builds will be initiated on your Mac by root
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<dhess>
there are ways to do that too using nix-darwin, but for now you can just do "sudo ssh -i /etc/nix/docker_rsa root@docker" and accept the host key
<dhess>
that should seed the right file
<angerman>
that does work now. errors still the same though.
<dhess>
well I gotta hit the sack. I will try NixOps tomorrow from my Mac and let you know how it goes. Hopefully LnL can help you when he shows up. You might want to linger on #nix-darwin as well
<angerman>
alright, so I'm left wondering how to make nix install `build-remote.pl` for me.
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<AlanPearce[m]>
I can't seem to get nixops to make even a trivial deployment using the "none" backend. I end up with many lines like `trivial> /nix/var/nix/profiles/system/bin/switch-to-configuration: line 3: use: command not found` when I run nixops deploy, which would imply that `switch-to-configuration` is being executed as a shell script instead of a perl file. Any ideas why this might be happening? I've tried nixops 1.5.2 and
<AlanPearce[m]>
1.6pre2276_9203440
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<Alling>
How is hard drive spindown usually controlled on NixOS (specifically WD Reds in a server)?
<Alling>
Say for example that I want to be able to set the disks to spin down after an hour of inactivity. Is hdparm the way?
<sphalerite>
Alling: yeah I think so. Declarative options for that would be nice but they don't seem to exist AFAICT
<Alling>
sphalerite: I found a utility from WD to fix some bug in the Red firmware. It is an executable which I downloaded with curl. But I cannot run it. "unable to execute ./wd5431x32: No such file or directory"
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<etu>
Alling: It's probably using libs that you don't have in expected locations
<Alling>
etu: But it seems unable to find the actual executable, based on the error message.
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<etu>
Alling: I'm pretty sure it does :)
<Alling>
etu: OK. I'll read the link.
<sphalerite>
Alling: see my link
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<sphalerite>
Alling: what's missing in this case is the loader. You'll get the same kind of error if you try to run a script with a shebang that refers to an interpreter that isn't present.
<etu>
Depends if it's a binary or a script
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<etu>
But I've had go-binarys that I've compiled on nixos to deploy on non-nixos saying that same thing.
<Alling>
sphalerite: This is actually kind of frustrating with NixOS. All those scripts with #!/bin/bash ...
<etu>
Becase some dep use CGO... :/
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<sphalerite>
It's basically the same thing, the only difference is that it's a field in the ELF header rather than a line of text. In either case, it tells the kernel "run this on me for execution". The loader, which is what's used for binaries, loads the executable into memory along with the dynamic libraries it depends on
<sphalerite>
Alling:
<sphalerite>
oops. Alling : #!/usr/bin/env bash should be used instead, as it's compatible
<Alling>
sphalerite: Yeah but I mean, there are so many scripts with #!/bin/bash that usually "just work" on any Linux dist, but not on NixOS.
<sphalerite>
a horrible solution is to symlink /bin/bash to /run/current-system/sw/bin/bash. But don't tell anyone I said that. :p
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<Alling>
sphalerite: Actually I'm more concerned about making NixOS seem usable to people. Those I've talked to about it would probably find such a thing annoying enough to just go back to Ubuntu/Arch/etc.
<sphalerite>
If that's all it takes to convince them to go back, then I'd say nixos isn't for them
<sphalerite>
Either that or they haven't engaged with its benefits enough, which means they're not interested, which again probably means nixos isn't for them
<Alling>
sphalerite: But I actually understand them. There are so many weird things going on that are nearly impossible to solve without this IRC channel. You guys are absolutely amazing, but I think many people want to be able to do stuff right away or at least google their way to a solution.
<Alling>
sphalerite: Anyway, that wasn't gonna be today's topic. ^^
<simpson>
Alling: Interoperability is sometimes not a positive feature, and this is one of those situations.
<sphalerite>
I'd say interoperability is usually (certainly in this case) a positive feature, but it has to be weighed against its costs. Interoperability would break what makes nixos so wonderful
<sphalerite>
or rather require breaking
<sphalerite>
hm, the wiki doesn't mention steam-run
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<sphalerite>
as the most quick-n-dirty solution you may want to try nix-shell -p steam-run --run 'steam-run ./wd5431x32'
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<simpson>
When it comes to capability-oriented security, and the principle of least authority, interoperability often means insecurity. In NixOS, interoperability often means impurity or other violations of the security properties.
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<NixOS_GitHub>
[nixpkgs] joachifm pushed 2 new commits to master: https://git.io/vNcfF
<NixOS_GitHub>
nixpkgs/master b6c696c Joachim F: Merge pull request #33444 from rnhmjoj/dnscrypt-wrapper...
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<NixOS_GitHub>
nixpkgs/master c883311 rnhmjoj: nixos/dnscrypt-wrapper: fix rotate script failing to restart the service
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<Alling>
sphalerite: It's downloading an absolutely awful lot of stuff from steampowered.com, it seems. x)
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<sphalerite>
yeah that's the disadvantage
<sphalerite>
it uses the full steam runtime
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<Alling>
sphalerite: Is it installing Steam permanently?
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<sphalerite>
no, just the steam runtime, and it goes into the nix store. It'll disappear in the next GC
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<sphalerite>
The best solution for running binaries really depends on the situation. There are 3 options generally — steam-run, FHS user env, and patching. steam-run has the advantage of only taking a single command, but the disadvantage of requiring the fairly bulky steam runtime. FHS user env takes a bit more manual effort but doesn't require patching the binary, which can be useful if it has integrity checks
<sphalerite>
and patching is the best long-term solution, since it puts the binary in the nix store with its dependencies registered in the nix database
<infinisil>
A big advantage of packaging something for Nix(OS) is that it will work forever and on all linux distros. That cannot be said for most others
<sphalerite>
oh yeah, and if it's not a proprietary binary building from source is the best option!
<infinisil>
Alling: ^^
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<Alling>
sphalerite: If one knows how to build from source and get everything in the right place, that is. :)
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<simpson>
It takes more effort to write fucked-up custom packaging that isn't Nix-ready than to use standard tooling and get free automatic Nix support.
<simpson>
FWIW the FHS user env for Steam works quite well, for those games which behave right under it.
<sphalerite>
I got SIGILL a while back when I was fiddling with my ARM stuff, had a binary which used NEON instructions and tried to run it on a processor that didn't have NEON
<deltasquared>
oops.
<deltasquared>
oh, it occured to me, maybe the binary is expecting some x86_64 features like AVX which not all of them have (depending on age)?
<sphalerite>
Alling: yeah in this case I'd just say WD is being a pain in the neck, and boot into some traditional distro like srhb suggested
<sphalerite>
oh yeah, the filename suggests that it's 32-bit as well
<sphalerite>
who knows
<Alling>
sphalerite: [ Process PID=22985 runs in 32 bit mode. ]
<hyphon81>
Watch Dog on Steam?
<sphalerite>
if WD had released source code rather than an inscrutable binary everything would be easier
<Alling>
(in strace output)
<Alling>
sphalerite: Who doesn't love closed source?!
<sphalerite>
hyphon81: no, western digital, the electronics manufacturer
<deltasquared>
for the record, can I just say I find it infuriating when binaries fail with ENOENT when the interpreter isn't locatable and the shell translates that to "$program: no such file or directory"
<deltasquared>
it's almost like the kernel devs were chicken of more error codes -_-
<Alling>
deltasquared: Fully agree.
<srhb>
Out of curiosity, doesn't it have a /wd5741x64 too?
<Alling>
They actually do.
<deltasquared>
sphalerite: re inscrutable binaries, distant cries of "but muh secret sauce!"
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<sphalerite>
deltasquared: it's a little more complicated than "just add an error code", since you can have an arbitrarily long chain of interpreters
<sphalerite>
if you have a python script for instance, the kernel will read the shebang from that, try to execute the python interpreter, which on nixos is probably a shell script, so it'll get another shebang, and read the shell binary, which in turn refers to the dynamic linker…
<sphalerite>
and the error can occur on any of those links
<deltasquared>
sphalerite: even so, "some interpreter somewhere failed" just helps to get the ball rolling
<deltasquared>
whenever I encounter ENOENT for an interpreter fail it clogs up my brain in conflict with "but it's right there!" until I realise what's happening
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<deltasquared>
and invariably the process leaves me feeling mildly frustrated.
<sphalerite>
yeah, that's understandable
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<deltasquared>
that said, I can already hear torvalds yelling don't break userspace etc. (unless there was a feature flag... but then shared libs. dicey.)
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<sphalerite>
I mean, I fully understand your frustration, I did from the beginning, I have it myself. But it's not simple to solve
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<deltasquared>
we'd need an execve2() syscall for starters. the existing one doesn't take any flags
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<Alling>
sphalerite: srhb Fun fact: Just ran wdxxxx on Arch Bang: "Segmentation fault (core dumped)"
<sphalerite>
hahaha
<sphalerite>
see?? It's not NIxOS's fault that WD's tool is horribly broken! :D
<srhb>
Alling: q_q
<srhb>
Alling: Just in case, it's not just because it fails like that when given no arguments?
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<srhb>
They don't explicitly list that as a possibility.
<Alling>
srhb: Actually I did "wdxxx -?"
<srhb>
Ah.
<srhb>
Oh well. :/
<sphalerite>
Alling: there seem to be some comments on the blog post suggesting that others have experienced the issue and giving some even dodgier-looking links to alternatives
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<NixOS_GitHub>
[nixpkgs] jtojnar pushed 1 new commit to master: https://git.io/vNcT1
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<NixOS_GitHub>
nixpkgs/master 3eb0ddc Andrey Golovizin: virt-manager: add gobjectIntrospection to nativeBuildInputs
<aanderse>
i'm trying to build a fhs environment but for some reason the environment thinks i don't have a 64bit machine
<sphalerite>
Alling: I think iotop can do that
<tilpner>
etu - Nice! Now add a filter and compare the local channel against the remote channel age, so you can see how much behind you are :)
<aanderse>
when i install oraclejdk via configuration.nix it asks me to download the 64bit version, but when i install oraclejdk8 via my script where i have fhs environment it asks me to download i586 version
<aanderse>
any ideas on that?
<etu>
tilpner: *sigh* -- yeah, I got a long way to go to get this working properly
<gchristensen>
nice, etu!
<sphalerite>
Anyone know about how to stop bluetooth from interfering with wifi?
<gchristensen>
etu: do you now about my "API"?
<sphalerite>
Is it even possible?
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<etu>
tilpner: Gnome docs are *really really really* bad. Bad isn't even a good fit. Nonexistant is better maybe. The latest docs they have is 3.2, I'm here on gnome 3.28. The example code isn't even in the docs.
<deltasquared>
(I assume the n is channel select or something.)
<tilpner>
etu - Sure, but then you need more underdocumented Gnome functionality. At least the compare-local-to-remote part doesn't *need* configuration though...
<deltasquared>
it could very well be they're just interfering. :/
<etu>
tilpner: :D
<deltasquared>
I've never actually tried both simultaneously, partly because I had a disagreement with bluez the last time I tried to do anything useful with it
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<deltasquared>
sphalerite: see, what I'd think would happen is that they would attempt to work around each other and use a different band (hopefully less noisy one)
<deltasquared>
so tbf that doesn't rule out some wierd hardware issue
<deltasquared>
(same antenna for bluetooth and wifi? let's hope not...)
<sphalerite>
deltasquared: and I don't know if I have a combination chip, but it's quite possible since it's a laptop http://sprunge.us/CVWI (wifi is pci, bluetooth is usb)
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<deltasquared>
sphalerite: oh cool, an ath10k device... I've been largely avoiding 802.11ac for linux compat reasons
<sphalerite>
deltasquared: it works very nicely, bluetooth issues aside
<sphalerite>
maybe I can switch the wifi to 5GHz
<deltasquared>
sphalerite: just beware, your AP may not play ball
<deltasquared>
(depending on how shite it is)
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<sphalerite>
indeed, it doesn't seem to have a setting for it at all
<deltasquared>
sphalerite: what, the AP?
<deltasquared>
or the adapter
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<deltasquared>
(the AP should at least advertise that band if it supports it I think...)
<deltasquared>
quite frankly wireless technologies are a lot of black magic to me >_>
<sphalerite>
yeah
<etu>
deltasquared: It is black magic, so it's not just you :):)
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<deltasquared>
etu: I actually got this stuff thrown at me during a computer interface technologies module. even trying to grok over-the-air wave encodings fried my brain
<deltasquared>
never mind anything built on top
<sphalerite>
I would just use a wired connection, but that has its own problems…
<deltasquared>
yeah, such as house owners not letting you run ethernet cables down the central column of the house. :P
<deltasquared>
"but it's a perfectly suitable hole! no drilling!"
<deltasquared>
sphalerite: returning to topic a bit, what actually happens if you tell wpa_supplicant (or whatever you may have controlling it) to use 5Ghz mode only?
<sphalerite>
well I have powerline and that works fine
<sphalerite>
but there's a kernel bug that makes using my ethernet adapter a pain >_>
<deltasquared>
oh yeah? not detecting properly or something?
<sphalerite>
hm, there doesn't seem to be a setting for that
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<sphalerite>
it detects its presence just fine, and I can use it without problems. The problem is when I unplug it, it doesn't seem to register that part, and anything that tries to access the network after that hangs
<sphalerite>
it works fine if I remove it manually via sysfs before unplugging
<deltasquared>
sphalerite: interesting, so no-one in userspace gets sent any sort of "link down" message? hrm
<sphalerite>
deltasquared: no, the *kernel* isn't detecting that the interface is gone
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<sphalerite>
it still reports it as present to userspacec
<sphalerite>
and it's not just that the link is down, it's that the interface is gone
<deltasquared>
*re-reads above* oh, it's an external one?
<gchristensen>
sphalerite: what is it connecting over?
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<sphalerite>
gchristensen: USB, which is why I can remove it via sysfs. The adapter physically plugs into the USB-C port and also has a couple of USB-3 ports
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<gchristensen>
is it secretly PCI or something over that USB-C? I've seen all sorts of problems with devices doing that
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<sphalerite>
so AFAIU the structure is laptop's PCI bus <-> USB hub <-> USB network adapter
<gchristensen>
aye
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<deltasquared>
sphalerite: I don't suppose anything weird appears in dmesg when you suprise remove it?
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<sphalerite>
hang on, let me quit everything in preparation for a reboot :p
<deltasquared>
interesting... (reading about nix expression language a bit more) when the nix manual says derivations can be coerced to strings, does that mean that it would "cast" to the store path of that derivation?
<infinisil>
deltasquared: "${someDerivation}" is equal to "${someDerivation.outPath}"
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<gchristensen>
"yes", deltasquared :)
<sphalerite>
infinisil: not entirely, is it? I don't think "${someDerivation.outPath}" will trigger building?
<infinisil>
ah that might be, I'm not sure
<gchristensen>
if I had to guess, coarse-grained details are what deltasquared is looking for right now
<sphalerite>
deltasquared: hm, now the issue isn't popping up. Not sure if it appears inconsistently or if it was fixed by the last kernel update…
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<infinisil>
alright, I mean something will only get built if invoked with nix-build /or/ a dependency of something invoked with nix-build. And A is a dependency of B when the outPath of A occurs somewhere in the derivation of B. So "${someDerivation}" should be the same as "${someDerivation.outPath}"
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<infinisil>
Thinking about this the first time, but I think i got it right
<sphalerite>
oh ok never mind me then :p
<sphalerite>
deltasquared: gchristensen : tried 3 times now and can't reproduce it. I guess either the bug was fixed or I'm just unlucky
<deltasquared>
"haha, he's not testing now, GET SOME OF THAT"
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<deltasquared>
gchristensen, infinisil, sphalerite: actually I'm fine with details (though not too many at once), I keep going until I absorb enough to have a coherent mental model of the thing I'm examining
<sphalerite>
bet it'll pop up again at the most inconvenient time
<sphalerite>
like when I'm with a friend who thinks linux sucks
<gchristensen>
deltasquared: derivations when coerced to a string become their out path, yeah
<sphalerite>
anyway fwiw http://sprunge.us/GeQWH here's the log from plugging in (13:49:43) and unplugging again (13:50:13). But the bug didn't occur this time so it's probably not helpful
<deltasquared>
sphalerite: aww, you call your host sudoku? that's cool
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<aminechikhaoui>
hm any way I can install nixos on a raspberry pi using wifi ?
<sphalerite>
I basically picked a random word because I had no ideas
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<NixOS_GitHub>
nixpkgs/master c02a883 Bas van Dijk: pythonPackages.elasticsearch: move derivation to python-modules
<NixOS_GitHub>
[nixpkgs] FRidh pushed 3 new commits to master: https://git.io/vNct7
<NixOS_GitHub>
nixpkgs/master 4475995 Frederik Rietdijk: Merge pull request #33774 from LumiGuide/elasticsearch-curator-5.4.1-cleanup...
<NixOS_GitHub>
nixpkgs/master 762f5ea Bas van Dijk: python-modules: removed unnecessary name attributes
<sphalerite>
aminechikhaoui: you mean without writing an image to the SD card from another machine?
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<infinisil>
Damnit, why does so much stuff I'm using break with an updated nixpkgs :/
<aminechikhaoui>
well no after booting using the image, I'd like to nixos-rebuild using wifi
<deltasquared>
aminechikhaoui: that doesn't work anyway?
<deltasquared>
... oooh, wait, possible wifi drivers issue
<sphalerite>
deltasquared: my first few computers were named after birds, in German, following the naming scheme my dad used to use. Then I had one which I called "computer" because why not, now I have "sudoku" and the chromebook which is called "green"
<aminechikhaoui>
I plugged a usb wireless adapter
<aminechikhaoui>
ifconfig doesn't show a network interface for wifi
<deltasquared>
aminechikhaoui: what's the manufacturer of the thing do you know
<sphalerite>
aminechikhaoui: what's the issue you're having? Does the adapter not work, or do you just not know how to connect?
<sphalerite>
ah, that's a pain
<sphalerite>
infinisil: :(
<deltasquared>
aminechikhaoui: if the image isn't recognising the adapter (maybe because of out-of-tree drivers) then you may have yourself a rather annoying chicken-and-egg problem
<deltasquared>
in which to get wifi drivers (assuming that is the problem) you'd have to be connected to the internet first...
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<aminechikhaoui>
sphalerite: deltasquared I guess I don't know how to connect :D, journalctl -k and lsusb show that the device is recognized
<sphalerite>
aminechikhaoui: if it doesn't show up in `ip link` then it's not going to work without driver/firmware fiddling
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<NixOS_GitHub>
[nixpkgs] FRidh pushed 2 new commits to master: https://git.io/vNcth
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<NixOS_GitHub>
nixpkgs/master f3c996e Jaakko Luttinen: pythonPackages.versioneer: init at 0.18
<NixOS_GitHub>
nixpkgs/master a6af522 Frederik Rietdijk: Merge pull request #33856 from jluttine/add-versioneer...
<sphalerite>
I think ifconfig not showing it also means a driver issue
<sphalerite>
what exactly does journalctl say about it?
<aminechikhaoui>
huh ok then, better not spend much time on it then :)
<aminechikhaoui>
new high-speed USB device number 6 using dwc2
<aminechikhaoui>
that's from kernel logs
<deltasquared>
couldn't you pa- ... different device. my bad.
<sphalerite>
aminechikhaoui: yeah that's not helpful, it will recognise any USB-compliant device like that
<sphalerite>
you'll get the same if you plug in a storage device or a keyboard or a MIDI adapter or …
<aminechikhaoui>
I see
* deltasquared
gets to the bit in the nix manual about sets in the expression language
<sphalerite>
except a storage device, keyboard or midi adapter will probably actually work xD
<deltasquared>
ey dear... ancient langs called them "records", C-likes called them "structs", lua just had "tables" and now "sets" which are more sets of key-value pairs as opposed to an actual set of objects...
<aminechikhaoui>
anyway thanks sphalerite , unfortunetly that adapters website link will not be much useful to me (life is hard in Tunisia :D)
<aminechikhaoui>
I'll just plug in an ethernet cable later
<sphalerite>
yeah if that's an option it's definitely easiest haha
<nikivi>
`you use a Nix file (e.g. /etc/nixos/configuration.nix), and the Nix tools convert it to the proper config files`
<nikivi>
How does this work in practice?
<gchristensen>
nikivi: it works great!
<nikivi>
For example I have many .zsh files with aliases and functions for example
<nikivi>
Do I have to write them inside nix config file instead?
<gchristensen>
you don't _have_ to in many cases, no
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<pkill9>
i think the configuration.nix modifies the system-wide configs, but the software will normally also look in your user directories for ocnfigs
<pkill9>
i suspect the main benefit of using confgiuration.nix is that if configuration syntax changes in a softwaree version, nix will handle that for you so you don't have to update your config files
<LangeOortjes>
I don't know if this is the right place to mention this but I've noticed that gdb crashes with segfaults when I try to inspect arguments (e.g. via the info args command)
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<sphalerite>
LangeOortjes: if it's a gdb installed from nixpkgs through nix, then this is probably the right place!
<NixOS_GitHub>
[nixpkgs] FRidh pushed 8 new commits to release-17.09: https://git.io/vNc3l
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<paolino_>
hi, I'm just trying nix on a project using Spock. It fails because one deps (reroute) fails the testing phase. Any suggestion on how to procede ?
<mpickering>
Do you understand what the difference is?
<paolino_>
let me think
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<paolino_>
mh, I don't know what super is passed for
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<paolino_>
but I understand it's changing the build at a higher level
<mpickering>
So “extend” is used to modify a package set. You pass it a function, the first argument is the result of doing the override, the second is the package set before doing the override
<mpickering>
If it’s not clear I’m saying modify haskellPackages
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<NixOS_GitHub>
[nixpkgs] dotlambda opened pull request #33859: python3Packages.netdisco: init at 1.2.3 (master...netdisco) https://git.io/vNcGw
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<paolino_>
mpickering: so reroute = is self.reroute = ?
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<mpickering>
Say you want to modify another attribute, "another-haskell-package" and wanted to refer to reroute, if you referred to "self.reroute" then it would refer to the dontCheck version but "super.reroute" would refer to the original unmodified version
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<mpickering>
(in the same extend that is)
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<paolino_>
so self is what it will be, kind of fix
<vaibhavsagar>
paolino_: the implementation merges the original attribute set and the one specified in overrides
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<mpickering>
what is the difference between the packageSetConfig, compilerConfig and overrides arguments in the haskell package set?
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<srhb>
mpickering: As far as I can see, only the order of the extension composition?
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<srhb>
(iow. packageSetConfig gets to refer to the extensions of compilerConfig through super)
<srhb>
Because packageSetConfig `extends` compilerConfig
<mpickering>
seems strange to me to do that
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<srhb>
Oh?
<mpickering>
why have 3? you could have one and use composeExtensions to compose together your k different layers
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<srhb>
Yes, I can only see that it makes sense when you want to prevent the extension in on direction (ie compilerConfig may not refer to packageSetConfig)
<srhb>
in one*
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<NixOS_GitHub>
[nixpkgs] lschuermann opened pull request #33861: woof: init at 2012-05-31 (master...woof) https://git.io/vNccb
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<srhb>
I notice that packageSetConfig is only used for defining the ghcjs sets.
<srhb>
I wonder if that sheds any light...
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<NixOS_GitHub>
[nixpkgs] dotlambda opened pull request #33862: python3Packages.pyhomematic: init at 0.1.37 (master...pyhomematic) https://git.io/vNcCn
<NixOS_GitHub>
[nixpkgs] adisbladis pushed 1 new commit to release-17.09: https://git.io/vNcCX
<NixOS_GitHub>
nixpkgs/release-17.09 c78b6cb Jon Banafato: skypeforlinux: 8.11.0.4 -> 8.13.0.2...
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<srhb>
pbogdag: Gurr. The keymap tests are still failing despite disabling the xterm DM. :/
<Isorkin>
how to fix runtime path - patchedby error path - /nix/store/...-maxscale-2.1.13//nix/store/...-maxscale-2.1.13/lib/maxscale
<srhb>
I think we need to play around with a delay and forced focus or something.
<mpickering>
maybe the answer is that overrides cant be used internally as then an override would overwrite it
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<deltasquared>
hmm, so for the derivation function, what would one put for the "system" attribute to indicate "any architecture", if e.g. the files output are only platform-neutral scripts?
<sphalerite>
any dhall users here? If so, can they help me understand why `dhall <<< "let Foo = {} in [] : Optional Foo"` tells me "Unbound variable Foo"?
<adisbladis>
deltasquared: Typically platforms.all
<sphalerite>
srhb: since you seem to have at least some idea of what you're doing with dhall, could you maybe help me understand why ^ won't typecheck?
<jsgrant_>
Ha; So finally reshuffling boxes again. I'm pretty commited on my main boxen, going to go full Nix after playing around with the idea the past year-and-a-half... 'shred'-ing my day-to-day laptop a few times over in-preperation and running into this old kworker bug; Where it takes all of one of a multicore resources doing next to nil.
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* jsgrant_
is going to have to investigate how to disable certain interrupts for firmware on NixOS. :^)
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<Lisanna>
buildFHSUserEnv is a bit... confusing.
<jsgrant_>
Still can't believe this is still a bug in kworker though; Literally hav had for near 5 years on that box -- almost forget it's a problem till I end up distrohopping.
<7GHABUZ6M>
[nixpkgs] adisbladis pushed 2 new commits to master: https://git.io/vNcl3
<7GHABUZ6M>
nixpkgs/master ff94fbc adisbladis: Merge pull request #33851 from vbgl/why3-0.88.3...
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<7GHABUZ6M>
nixpkgs/master aee1ceb Vincent Laporte: why3: 0.88.1 -> 0.88.3
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<sphalerite>
Profpatsch: sorry to bother you personally, but you seem to be in the dhall-lang org on github… do you know a good place to ask questions about Dhall?
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* hodapp
reads about dhall-nix...
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<wilornel>
Hi angerman !
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<hodapp>
"This package targets people who wish Nix had a type system." but is independent of the other efforts to type nix? hmmm
* jsgrant_
never even heard of Dhall before; Looks relatively nice.
<hodapp>
I've heard of Dhall but never used it
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<sphalerite>
hodapp: yes, it's a completely distinct language so it's necessarily independent
<sphalerite>
I'm trying to use it but having difficulties with fairly basic stuff, I don't know if this is a problem with my expectations or with the current state of the language
<sphalerite>
e.g. 'let Foo = {} in [{=}] : Optional Foo' doesn't typecheck, even though '[{=}] : Optional {}' is fine
<sphalerite>
where {} is the type of the empty record and {=} is the empty record
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<NixOS_GitHub>
nixpkgs/master 05d803a adisbladis: qmltermwidget: Use fetchFromGitHub
<NixOS_GitHub>
[nixpkgs] adisbladis pushed 2 new commits to master: https://git.io/vNc89
<deltasquared>
sphalerite: that syntax is mildly eye-twitch inducing
<Lisanna>
Ah, perhaps I am misunderstanding buildFHSUserEnv... I thought it was more or less just stdenv but it runs everything in a chroot with /usr /etc /bin etc. setup. Instead it appears to be geared towards wrapping a binary for users to call at runtime?
<sphalerite>
Lisanna: yeah AFAIU it's for use with nix-shell
<Lisanna>
:/
<sphalerite>
deltasquared: better than Agda, IMHO
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<deltasquared>
sphalerite: I don't know what that is. P
<deltasquared>
*:P
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<deltasquared>
thought it should be noted I very firmly have my programming routes in the C language family, so...
<Lisanna>
can it be used in the way I want to use it instead? I want the final product to be a nice nix-ified package, I just need to temporarily deal with the self-extracting installer
<deltasquared>
self extracting installer? this does not bode well...
<Lisanna>
I can wrap the installer in a buildFHSUserEnv but then I need to run that installer as part of a mkDerivation
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<sphalerite>
deltasquared: a dependently typed functional programming language. Very powerful and kind of mind-bending
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<sphalerite>
Lisanna: often self-extracting installers can be externally extracted instead, have you checked if that's possible with this one?
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<Lisanna>
sphalerite it's all custom
<Lisanna>
these aren't tar.gzs...
<sphalerite>
Lisanna: yeah but even custom ones can sometimes be figured out
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<sphalerite>
Lisanna: e.g. they're often shell scripts with binary data appended to them
<deltasquared>
sphalerite: dependent typing? like tuples of numbers where the first is smaller than the second? (a simple case mind)
<sphalerite>
try opening it in an editor and seeing if that's the case
<sphalerite>
if not, binwalk might be helpful too (nix-shell -p python3Packages.binwalk --run 'binwalk magicalInstaller')
<sphalerite>
deltasquared: yes
<Lisanna>
sphalerite well, the installer is an ELF, so assuming I could even figure out how ot manually extract the installer's data, I have no idea how I'd tell the installer to use my version instead
<sphalerite>
ah yeah if it's ELF then it's not as easy as with a shell script. binwalk might still help though
<Lisanna>
I'm not liking the sound of your messages... does it mean that something wrapped with buildFHSUserEnv just can't be run in a nix sandbox?
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<Lisanna>
as part of a mkDerivation?
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<NixOS_GitHub>
[nixpkgs] adisbladis opened pull request #33863: teamspeak_client: Re-link with qt 5.9 (master...tsclient-qt59) https://git.io/vNc4V
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<Lisanna>
the things you're suggesting sound pretty gloomy :p
<srhb>
sphalerite: Hmm, is it that {=} is special for empty record, but not empty Foo?
<sphalerite>
srhb: no because Foo is the empty record type
<sphalerite>
srhb: there's no newtype-like mechanism at play here
<srhb>
Ah.
<sphalerite>
Lisanna: it probably can, I just have no idea how :)
<Lisanna>
bleh, alright
<Lisanna>
fair enough
<sphalerite>
srhb: as far as I understand, anyway. I might be horribly wrong!
<Lisanna>
*pulls up the useful nix hacks page* alright time to get dirty
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<sphalerite>
hm, more simply `dhall <<< 'let Foo = {} in {=} : Foo'` doesn't work either
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<NixOS_GitHub>
[nixpkgs] adisbladis opened pull request #33864: mendeley: Re-link with qt 5.9 (master...mendeley-qt59) https://git.io/vNcBJ
<srhb>
Yeah, that's what lead me to think that it were newtype-like
<srhb>
Because {=} : {} obviously works
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<srhb>
sphalerite: "Type-checking precedes normalization and normalization includes substitution of let-bound types" -- sounds relevant
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<sphalerite>
aaaaaah
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<sphalerite>
sooo… maybe this will work if I replace the let binding with a file reference, and put the type description in the file?
* sphalerite
tries
<srhb>
I think so :)
<srhb>
Of course, this means that the file Foo now contains {} :P
<srhb>
Though I guess that just seems to obviate the example because it's so simple. :)
<srhb>
It would make sense for a "real" type "synonym" (import)
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<srhb>
(Pathologically simple because now it's just dhall <<< "{=} : ./Foo")
<wilornel>
Hey #nixos! It seems like `vi ~/.config/nixpkgs/config.nix` and `nix-env -iA nixos.myPackages` allows each user to have its own declaration of packages they want to install, right? However, I am trying to create a separate user right now and grant them root rights and then I get:
<wilornel>
[kevin@ip-172-31-47-96:~]$ sudo nix-env -iA nixos.myPackages error: attribute ‘myPackages’ in selection path ‘nixos.myPackages’ not found
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<sphalerite>
srhb: yeah. I gradually narrowed it down to such a simple case from a much more complex one
<srhb>
sphalerite: Ok, cool :-)
<gchristensen>
wilornel: are you still on 16.09? :)
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<srhb>
cinimod: I think you want openblas
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<sphalerite>
wilornel: I think you want to call nix-env without sudo
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<Lisanna>
New plan: runInLinuxVM
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<Lisanna>
runInLinuxVM is the answer to everything
<LnL>
wilornel: yeah, if you use sudo nix-env won't look at your local config
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<LnL>
you don't need root access to update/install user paclages
<jsgrant_>
There's some packages, that seem blatantly out of date afaik; Seems like a low-barrier to entry to start contributing though.
<gchristensen>
jsgrant_: indeed!
<samueldr>
that's definitely possible
<samueldr>
oh, my searcher is possibly ~15 days out of date with nixpkgs unstable's state
* samueldr
hits the deploy script
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<jsgrant_>
I've been debating with myself, even tyring to convience myself out of it and just "stick with Fedora" -- but really thiink I'm going to give NixOS a solid, actual year, on all my main boxen.
<gchristensen>
samueldr: elm is only workable once the closure for elm is much smaller
<Lisanna>
samueldr I like that it has a "show unfree packages" option
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<samueldr>
I got "elm fatigue" when I first started porting... all new stuff, working differently, felt a bit like swimming in place
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<jsgrant_>
Really, have set myself to fail prior -- by trying to 'jump all in' and not setting up any secondary boxes, if I need to "get stuff done" in the moment; Set up two secondary Arch boxes; So no real excuse now. :^)
<samueldr>
(though, that's all from being unfamiliar with everything)
<simpson>
samueldr: Elm's kind of a cruddy language. Don't worry about it.
<samueldr>
jsgrant_: go all in, nothing can go wrong ;)
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<samueldr>
probably
<manveru>
iqubic: quite a few options
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<jsgrant_>
samueldr: :Yeah; Wish I still had all that "high-school and early-college" free-time again ... think I'm still in that mindset though.
<simpson>
samueldr: Really lame type system for an ML, anemic libraries, "The Elm Architecture" is not a genius-level invention and the docs should relax already. It's like Haskell, but with an even more restrictive type system and an unpredictable parser.
<samueldr>
jsgrant_: this was definitely said jokingly, I didn't do an all-in switch at one go, I had a secondary computer I used to get ~90% what I wanted, THEN went all-in
<iqubic>
samueldr: What's the difference between those prolog compilers?
<jsgrant_>
Moderation, especially around techno-optimism is hard.
<sphalerite>
Is there a way to get nix not to retry network-accessing-stuff that fails in persistent ways, e.g. failure to resolve a hostname because it doesn't exist, or not being able to send a curl request because there's no route to the host?
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<samueldr>
iqubic: I don't know, I literally only searched the packages list
<samueldr>
with work getting in the way, it took me ~3 months off and on (mostly off) and then went all-in
<jsgrant_>
samueldr: No, yeah, I got ya. I'm saying I have a loooong history of this; Just much less time to 'make it work'.
<tilpner>
How do I get an ALSA-less sound setup? I want to use Pulse, but sometimes I still need to go into alsamixer and unmute my microphone. Is that an ALSA-Interface to Pulse, or am I using a Pulse-Interface to ALSA? As you may have noticed, I don't know how Linux sound works
<tilpner>
sound.enable = false; in my setup
<wilornel>
WOOT!!!! I was able to achieve something great! Every user in the OS can have their own declaration of packages! :)
<wilornel>
THANKS TO NIX!!
<iqubic>
tilpner: ALSA is dependency of Pulse.
<samueldr>
afaik, pulse works using alsa
<simpson>
iqubic: Your Prolog learning materials probably prefer a specific Prolog interpreter. If there's truly no preference, then GNU Prolog implements all the standard stuff that you'd want for learning Prolog.
<wilornel>
I didn't achieve anything, I was able to successfully use nixos :)
<sphalerite>
tilpner: pulse is a layer on top of alsa, but it also emulates an alsa device
<tilpner>
sphalerite - I falsely assumed they were alternatives, and ALSA only was here for legacy reasons
<sphalerite>
wilornel: congratulations! :)
<cinimod>
I think I can blame nix because if I use cabal outside of nix then there is no error message
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<jsgrant_>
wilornel: No-problem; Trawl the docs a bit -- not perfect by any means, but there's some useful nuggets.
<simpson>
iqubic: Ah, that's a good introduction. $ nix-shell -p gprolog --run gprolog
<sphalerite>
tilpner: nope, ALSA is still pretty much the standard way for applications to access sound devices. Just, as it happens, that the ALSA device an application accesses will usually be a virtual one provided by pulseaudio if you're using pulseaudio
<tilpner>
sphalerite - Do you use other tools than pavucontrol for managing them? It's annoying that pavucontrol and alsamixer expose different options and I still need both
<sphalerite>
tilpner: is there a problem you're trying to solve, like sound not working somewhere?
<sphalerite>
I only use pavucontrol usually
<samueldr>
tilpner: is it a situation where *at boot* the alsa device is muted? this might be solvable through alsa config
<tilpner>
sphalerite - Every boot I have to go into alsamixer and unmute my headset microphone. I am unable to unmute it from pavucontrol
<sphalerite>
which options do you need alsamixer for?
<tilpner>
Ah, samueldr was faster at describing my problem
<tilpner>
samueldr - Have you solved this locally?
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<samueldr>
no, but this is something I remember having seen
* jsgrant_
wonders when pipewire starts eating pulseaudio's lunch in the 'greater linux community'.
<gchristensen>
jsgrant_: it'll probably take more than 6mo of only unstable releases..
<mpickering>
cinimod: Did you look at the hmatrix cabal file?
<sphalerite>
jsgrant_: fwiw it's the first time I've heard of it
<wilornel>
jsgrant_: I think if I were to do that I'll have to start annotating the bits I am not absolutely sure and for which some examples would be nice. Maybe I'll do that sometime
<jsgrant_>
gchristensen: I thought it was already shipping, in some-form in the latest Fedora? But yeah, going to take a few years surely; Weird to see how 'quick' seemingly systemd progressed.
<jsgrant_>
I know that's been years; But doesn't seem like it, really.
<gchristensen>
jsgrant_: yeah, afaict pipewire's first release was jul 2017
<mpickering>
cinimod: Looks like it is taking one of the branches where "if flag(openblas)" is expect but the openblas flag isn't set
<jsgrant_>
I appreciate the JS-as-target more, as I've accepted "Web As A Platform" is invetiably the future -- but aren't most of these going to die off once you can just "compile to WebAsm" in a much more established-lang? Idk.
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<samueldr>
tilpner: I haven't had any success with "commenting out" parts of the default pulsaudio config with nixos, I had to copy the default file, and replace it through configuration.nix
<gchristensen>
jsgrant_: the real innovation, imo, by elm, is making it approachable and in the community, which I think are just-as-valuable-if-not-more when it comes to commercial viability
<samueldr>
(haven't looked hard enough though)
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<jsgrant_>
gchristensen: Well, those are some of the bigger things that grow commerical-viablity, potientally too; Hell, that's some of the bigger selling-points to Rust (at least in-regards to community) -- yeah.
<gchristensen>
yep
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<NixOS_GitHub>
[nixpkgs] dezgeg pushed 1 new commit to staging: https://git.io/vNcu7
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<NixOS_GitHub>
nixpkgs/staging 6ed0fe7 Tuomas Tynkkynen: Merge remote-tracking branch 'upstream/master' into staging...
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<tilpner>
samueldr - Did you copy it manually, or via Nix?
<tilpner>
samueldr - Also, what's "nixos-option sound.enable" for you?
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<NixOS_GitHub>
[nixpkgs] vcunat pushed 1 new commit to staging: https://git.io/vNcgK
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<NixOS_GitHub>
nixpkgs/staging 990ff97 Vladimír Čunát: glibc: 2.26-115 -> 2.26-131 to fix CVE-2018-1000001...
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<NixOS_GitHub>
[nixpkgs] rycee pushed 2 new commits to master: https://git.io/vNcgA
<NixOS_GitHub>
nixpkgs/master fb5f636 Robert Helgesson: svtplay-dl: 1.9.6 -> 1.9.7
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<NixOS_GitHub>
nixpkgs/master dd798d1 Robert Helgesson: eclipse-plugin-checkstyle: 8.5.1 -> 8.7.0
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<dtz>
mmm starting issuing PR's from 'hub' command-line.. SO much better/easier lol
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<dtz>
still checking them after to make sure it doesn't do something strange, but...
<dtz>
:D
<simpson>
Ooh, that sounds like a feature I might be willing to use. I'll have to look at that.
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<sphalerite>
dtz: you said ALLVM stuff would be coming out in pieces over the next week on Tuesday, but I forgot to ask about how well it's integrated with nix and stuff and if it would include any information on how to run NixOS with it and where to look for it :D
<catern>
why is it necessary to instantiate Nix expressions down to low-level store derivations on disk? why not just do it all in-memory?
<gchristensen>
anyone like doing front-end stuff? I'd like a little program + web interface that reads a message from a rabbitmq queue and displays in a browser with websockets
<gchristensen>
s/a message/messages/
<dtz>
sphalerite: for now I maintain an '<allvm>' channel that you can install things from, I've been focusing on user software installed via nix-env (terminal, shell, editor, etc.) -- mostly so development of ALLVM features (and bugs :P) doesn't tank my laptop xD. I've generated docker containers and such that are pure-ALLVM; I would love to generate NixOS configurations but haven't actually tackled that yet.
<catern>
(more precisely, why the "on disk" part)
<dtz>
sphalerite: my estimate might be a bit optimistic but I'm working hard to ensure that optimism is warranted :P. Want to get at least first pieces out ASAP
<catern>
the thesis says "the paths of store derivations give us a unique identification of objects of source deployment" but that doesn't mean they have to be actually on-disk
<dtz>
tired of working behind closed doors :(
<dtz>
catern: mount nix store on ramfs -> profit?! :P jkjk
<catern>
i guess it's just staging
<catern>
and debugging
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<sphalerite>
dtz: sounds good!
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<samueldr>
tilpner: sound.enable = true; but I looked at the machine and I did not track it in config yet...
<samueldr>
... I'm overriding the user config only
<samueldr>
gchristensen: I'll be available in ~1h to talk about that (actually came here after seeing your tweet) (bbl)
<gchristensen>
neat!
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<gchristensen>
samueldr: careful, if people come looking to do my projects for me, I might get power hungry ...
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<garbas>
srk: not sure if you figured out regarding PYTHONPATH, but you can change the installPhase to echo $PYTHONPATH somewhere
<srk>
garbas: I've used python.buildEnv in the end
<garbas>
srk: yes, that works as well
<srk>
garbas: seems to work fine, can deploy complete CKAN now with postgres, rq, gunicorn, solr and redis
<srk>
with like ~300 lines of .nix \o/ :D
<garbas>
:) thats the idea
<srk>
oh yeah, learned a lots of stuff during last few days
<garbas>
while we are talking here. i'm giving you push rights for nixpkgs-python
<garbas>
so you can fix ckan when it fails on travis
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<srk>
garbas: cool, btw I've found out that you also maintain redmine - tried to deploy it yesterday as I'm gonna need it at some point but it doesn't seem to work. is it PITA to update?
<Unode>
does anyone have an example of how to set priorities to avoid collisions in configuration.nix ? All the hits I'm getting from google are nix-env related and not configuration.nix
<catern>
does anyone know of any other implementation of the nix-daemon remote store protocol? the one that nix-daemon speaks? is there, perhaps, a Haskell library which implements this protocol?
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<catern>
otherwise I think I might do it in Python, since I actually know Python and don't know Haskell :)
<Unode>
Nixos and nixpkgs manuals mention priorities and conflicts but don't provide any example. I'm trying to set mlocate to have higher priority than findutils to avoid "locate/updatedb/locate.1.gz" collisions.
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<Unode>
catern: none that I know of. I guess 'the' implementation is in C/Cpp since that's what nix-daemon/nix-env use (if I'm not mistaken).
<catern>
but which builds fixed-output derivations locally in its current environment and then adds them to the store of the real nix-daemon (through the remote API)
<sphalerite>
so not actually implementing all of nix-daemon
<catern>
Right, just enough to proxy it
<catern>
actually, I know there is at least one other implementation of the nix-daemon remote protocol :)
<Unode>
catern: I've used a mix of ssh tunnels and socat to proxy it through a firewall. Hackish but works.
<catern>
in Guix! at least, on the client side. I wonder if it has diverged too much?
<Unode>
so about priorities and collisions, does anyone have anything I could use as a reference? Trying to set mlocate to have higher priority than findutils and avoid collision on "locate, updatedb and locate.1.gz"
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<NixOS_GitHub>
[nixpkgs] pbogdan opened pull request #33872: yajl: small clean up (master...yajl-cleanup) https://git.io/vNcMk
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<Unode>
catern: what I really wanted back then was a way to have a single build machine with 'DMZ-like' privilege to do all the build/download/work which then would save output on /nfs/nix shared to other machines. There was no out-of-the-box solution. That hackish socat setup was the best I could get at.
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<catern>
yes, that's not quite the kind of proxying I mean, since I also need to intercept some of the operations and not just transparently pass them through
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<catern>
alright, Guix's implementation is sadly not quite in the state I need
<catern>
Python it is!
<catern>
I could still do it in Guile to be nice, but it should be an easy port to Guile from Python, if it ends up being useful
<ocharles>
Can anyone help me figure out the correct store path of this derivation: Derive([("out","??","","")],[],[],"","",[],[]). From reading the Nix source code, my reasoning is:
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<NixOS_GitHub>
[nixpkgs] andir opened pull request #33873: transmission: fix RCE via dns rebinding attach (master...transmission-dns-rebinding-rce) https://git.io/vNcMB
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<ocharles>
1. Take the sha256 of Derive([("out","","","")],[],[],"","",[],[]) = 8e7d5f316a6bbe60ba24da3de268abbbad7e6b865f5533bc1d9cc8e2ad3d0962
<ocharles>
Then, I compress that to be 20 bytes long by repeatedly xoring groups of 20 bytes from that SHA256
<seanparsons>
How do I use nix-build to test a package with some overrides set? (I'm thinking of the factorio build in this case as I've been trying to bump it))
<ocharles>
Finally, you base-32 encode that 20 byte hash-thing, which comes out for me as Z3IOF7CPMHTEBDOU7KDJTPZ3KEDEPFEK
<ocharles>
But nix-store --add apparently wants a2d4f3h8v9bc103n0fp948va15wf4nxh
<catern>
ocharles: try gdb on nix-store --add and step through, maybe? :)
<ocharles>
gdb seems a bit of a hammer when I have the source code right in front of me