[Nix-dev] Installing manpages

[Sergey Mironov]

Hi! Is there a possibility to install manpages for all packages I have
in NixOS. Possibly, a combinator which would convert a list of `with
pkgs; [foo bar]` to `with pkgs; [foo foo.man bar bar.man]` with checks
of .man existing ?

Regards,
Sergey


PS
Sorry If I am missing the topic in documentation
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Re: [Nix-dev] NixOS and nix 1.12

[Sergey Mironov]

Where can I read more about new features of nix-1.12 ?

Regards,
Sergey

2017-04-25 11:26 GMT+03:00 zimbatm :
> At some point but there is no timeline yet. We don't even have a list of
> regressions to fix before release yet.
>
>
> On Thu, 13 Apr 2017, 15:12 Volth,  wrote:
>>
>> Hi
>>
>> Is nix-1.12 going to replace traditional nix command line utilities on
>> NixOS ?
>> If yes, when it is going to happen, approximately?
>> With NixOS-17.09, 18.03 or later?
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>
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Re: [Nix-dev] For go-wizards: Building the geth using buildGoPackage

[Sergey Mironov]

I recently tried to upgrade the go compiler up to 1.8 by
cherry-picking all related commits. The error now looks like the
following:

# github.com/ethereum/go-ethereum/vendor/github.com/karalabe/hid
cgo-dwarf-inference:2:8: error: enumerator value for '__cgo_enum__0'
is not an integer constant
cgo-dwarf-inference:10:8: error: enumerator value for '__cgo_enum__7'
is not an integer constant
cgo-dwarf-inference:18:2: error: initializer element is not constant
cgo-dwarf-inference:18:2: note: (near initialization for '__cgodebug_data[0]')
cgo-dwarf-inference:25:2: error: initializer element is not constant
cgo-dwarf-inference:25:2: note: (near initialization for '__cgodebug_data[7]')

Upstream maintainer pointed out to
https://github.com/golang/go/issues/14669 problem. I've tried adding

preBuild=''
  export CGO_CFLAGS='-O0'
'';

without success..

Regards, Sergey



2017-04-21 0:40 GMT+03:00 Profpatsch <m...@profpatsch.de>:
> On 17-04-19 09:50pm, Sergey Mironov wrote:
>> building the geth
>
> I had a short fear of sentinent AI robots, but it’s (just?)
> a go package.
>
>> # github.com/ethereum/go-ethereum/vendor/github.com/karalabe/hid
>> go/src/github.com/ethereum/go-ethereum/vendor/github.com/karalabe/hid/wchar.go:44:8:
>> error: enumerator value for '__cgo_enum__0' is not an integer constant
>>return stringToWchar4(s) // Unix
>> ^
>
> That’s normal go compile errors.
> Are you using a very old version of the go compiler?
>
> Have you tried building it on unstable/master?
> You can check out nixpkgs with git
> and run `nix-build -A ` from there.
>
> --
> Proudly written in Mutt with Vim on NixOS.
> Q: Why is this email five sentences or less?
> A: http://five.sentenc.es
> May take up to five days to read your message. If it’s urgent, call me.
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[Nix-dev] For go-wizards: Building the geth using buildGoPackage

[Sergey Mironov]

Hi. I'm trying to build the latest version of the geth package.
Unfortunately, the current (v1.3.0) expression doesn't work anymore,
so I tried to use the buildGoPackage function. The build process
starts but the compiler issues errors listed below, all regarding
github.com/karalade/hid dependency. I'm not a Go expert so may miss
some vital knowledge. Could you please recommend me a possible next
move regarding the problem? Maybe changing Go compiler or specifying
some build flags? Note, I'm using quite old version of nixpkgs so may
miss some newer fix.

Regards,
Sergey



# github.com/ethereum/go-ethereum/vendor/github.com/karalabe/hid
go/src/github.com/ethereum/go-ethereum/vendor/github.com/karalabe/hid/wchar.go:44:8:
error: enumerator value for '__cgo_enum__0' is not an integer constant
   return stringToWchar4(s) // Unix
^
go/src/github.com/ethereum/go-ethereum/vendor/github.com/karalabe/hid/wchar.go:52:8:
error: enumerator value for '__cgo_enum__7' is not an integer constant
  case 2:
^
go/src/github.com/ethereum/go-ethereum/vendor/github.com/karalabe/hid/wchar.go:60:2:
error: initializer element is not constant
go/src/github.com/ethereum/go-ethereum/vendor/github.com/karalabe/hid/wchar.go:60:2:
note: (near initialization for '__cgodebug_data[0]')
go/src/github.com/ethereum/go-ethereum/vendor/github.com/karalabe/hid/wchar.go:67:2:
error: initializer element is not constant
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Re: [Nix-dev] [Nix-Dev] Packaging a Haskell project using Stack

[Sergey Mironov]

Hi. I've just fixed and completed the ./unstack.sh script, allowing
users to generate Nix expressions for entire Haskell stack project
(and its dependencies). The URL is the same

https://github.com/grwlf/nixcfg/blob/unstable/ideas/unstack.sh

Regards,
Sergey

PS Please let me know if there is another tool for this task
(cabal2nix? stack itself?)

2017-01-10 13:20 GMT+03:00 Sergey Mironov <grr...@gmail.com>:
>>> I am to package Stack project which
>>>
>>>   1) depends on old lts-2.21 package set from stackage
>>>   2) doesn't have .cabals anymore, only .yamls.
>>>
>>> The question is basically How to do it?
>>
>> Run "hpack" to generate the Cabal files. Then run "cabal2nix" to
>> generate the Nix files. Add those Nix builds to Nixpkgs as explained in
>> the user's manual at:
>>
>>   
>> http://nixos.org/nixpkgs/manual/#how-to-create-nix-builds-for-your-own-private-haskell-packages
>>
>
> OK, I've managed to create a prototype nix-shell script to packaging
> (not simply building) dependencies for a Stack project. Parameters are
> explained in its header.
>
> https://github.com/grwlf/nixcfg/blob/unstable/ideas/unstack.sh
>
> It works by
> 1) Calling stack list-dependencies
> 2) Calling cabal2nix for every dependency
> 3) Producing top-level all.nix expression
>
> The script is not for end-users yet, it doesn't produce final
> expression to build the Stack project, only its dependencies. Also,
> small modification of  pkgs/development/haskell-modules/default.nix is
> required: One should replace line `inherit mkDerivation callPackage;`
> with `inherit mkDerivation callPackage callPackageWithScope;`. Thus,
> callPackageWithScope function will be accessible for the script.
>
> Regards,
> Sergey
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Re: [Nix-dev] [Nix-Dev] Packaging a Haskell project using Stack

[Sergey Mironov]

>> I am to package Stack project which
>>
>>   1) depends on old lts-2.21 package set from stackage
>>   2) doesn't have .cabals anymore, only .yamls.
>>
>> The question is basically How to do it?
>
> Run "hpack" to generate the Cabal files. Then run "cabal2nix" to
> generate the Nix files. Add those Nix builds to Nixpkgs as explained in
> the user's manual at:
>
>   
> http://nixos.org/nixpkgs/manual/#how-to-create-nix-builds-for-your-own-private-haskell-packages
>

OK, I've managed to create a prototype nix-shell script to packaging
(not simply building) dependencies for a Stack project. Parameters are
explained in its header.

https://github.com/grwlf/nixcfg/blob/unstable/ideas/unstack.sh

It works by
1) Calling stack list-dependencies
2) Calling cabal2nix for every dependency
3) Producing top-level all.nix expression

The script is not for end-users yet, it doesn't produce final
expression to build the Stack project, only its dependencies. Also,
small modification of  pkgs/development/haskell-modules/default.nix is
required: One should replace line `inherit mkDerivation callPackage;`
with `inherit mkDerivation callPackage callPackageWithScope;`. Thus,
callPackageWithScope function will be accessible for the script.

Regards,
Sergey
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[Nix-dev] [Nix-Dev] Packaging a Haskell project using Stack

[Sergey Mironov]

Hi.

As far as I understand it correctly,
https://github.com/commercialhaskell/stack/issues/2259 says that Stack
mirroring in Nix is not supported anymore. Instead,
per-compiler-version package sets are (re-)introduced, which are
mostly Hackage-oriented. So compiling Haskell projects is still
possible, as long as .cabal files are provided.

Unfortunately, this is not always the case.

Stack toolset seems to going in the direction of replacing .cabal
entirely. Among other steps, it provides 'hpack' tool which is in fact
a .yaml parser, a replacement for good old .cabals. More, it supports
project hierarchies, making it possible to specify one .yaml file
describing several .cabal-like projects. This approach has its
benefits, so there are users who chose it instead of traditional
cabal.

This is exactly the case I have. I am to package Stack project which
  1) depends on old lts-2.21 package set from stackage
  2) doesn't have .cabals anymore, only .yamls.

The question is basically How to do it?

Modern nixpkgs provides `buildStackProject` function which seems to do
the job, but at a closer look, it works only with nix-shell, since it
doesn't prevents stack going online to grab its stuff from the
Internet during build process. Could you please suggest the method of
splitting the stack build process into 'online' and 'offline' parts to
run the build in nix-build environment?

Regards,
Sergey
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[Nix-dev] [Nix-Dev] Problem building Haskell-lts2.21 (ghc784)

[Sergey Mironov]

Hi. I have a problem while building Haskell packages for ghc-7.8.4.

I am using the following expression:

{ config, pkgs, ... } :

let mypkgs = a : with a ; [
  cabal-install
  alex
  happy
  parsec
  optparse-applicative
  hasktags];

in

{

  nixpkgs.config = {
packageOverrides = pkgs: {
  haskell-lts221 = (pkgs.haskell.packages.lts-2_21.override {
overrides = config.haskellPackageOverrides or (self: super: {});
  }).ghcWithPackages mypkgs;
   }
}

lts-2.21 eventually points out to expression declared in
`configuration-ghc-7.8.x.nix`. The error is as follows:

[1 of 1] Compiling Main ( Setup.hs,
/tmp/nix-build-hackage-security-0.5.2.2.drv-0/Main.o )
Linking Setup ...
configuring
configureFlags: --verbose
--prefix=/nix/store/677fi9nsc7kspqfilhqz029i75pg9lr5-hackage-security-0.5.2.2
--libdir=$prefix/lib/$compiler --libsubdir=$pkgid --with-gcc=gcc
--package-db=/tmp/nix-build-hackage-security-0.5.2.2.drv-0/package.conf.d
--ghc-option=-optl=-Wl,-rpath=/nix/store/677fi9nsc7kspqfilhqz029i75pg9lr5-hackage-security-0.5.2.2/lib/ghc-7.8.4/hackage-security-0.5.2.2
--enable-split-objs --disable-library-profiling
--disable-executable-profiling --enable-shared
--enable-library-vanilla --enable-executable-dynamic --enable-tests
Configuring hackage-security-0.5.2.2...
Warning: The flag --disable-executable-profiling is deprecated. Please use
--disable-profiling instead.
Setup: Encountered missing dependencies:
mtl ==2.2.*, transformers >=0.4 && <0.6
builder for 
‘/nix/store/yv2zdwniyypc2fdqmmcfgqq02wqcgwkd-hackage-security-0.5.2.2.drv’
failed with exit code 1

I checked versions, and it is true: all versions of hackage-security
depends on mtl-2.2.*. I've tried to change this dependency to plain
`mtl` by patching the sources, but it didn't help: looks like
hackage-security really does depend on mtl 2.2 and issue compiler
errors on older versions. So my decision was to force NIx use older
version of hackage-security itself. I think I can just modify
haskell-packages.nix but there is /*DO NOT EDIT*/ header, so my
question is: what is correct way of adding specific versions of
Haskell packages? Why do we have both, say, 'transformers' and
'transformers_0_3_1' but only one (latest) version of many other
pacakges, including hackage-security?

Regards,
Sergey
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Re: [Nix-dev] [NixDev] buildFHSUserEnv, network problems

[Sergey Mironov]

I solved my problem (2). The solution was to add "iana_etc" package to
the list of 'buildFHSUserEnv'. It creates file /etc/protocols which
stack reads.



> Side note about Buildroot + buildFHSUserEnv. I hit an issue with
> fakeroot, which Buildroot uses near the end of the build process, due
> to user namespace. Upstream bug:
>
> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=802612
>

Bjorn, you are right, now I am hitting this issue too. Since I have
not option of switching to another build system, Is there any
workaround for this bug? Maybe using buildFHSChrootEnv which looks
more generic? At what point do we use "unshare" ?

Regards,
Sergey
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Re: [Nix-dev] [NixDev] buildFHSUserEnv, network problems

[Sergey Mironov]

Nikolay, I made more research on the issue. It turns out that I had
two different problems:
1) "Connecting to nix.org (nix.org)|160.153.18.102|:80... failed:" -
was the misconfigured http_proxy. Setting it correctly makes wget
work. By nix.org  I mean nixos.org. nix.org is a valid name too, site
provides some content.
2) "FailedConnectionException2 "raw.githubusercontent.com" 443 True
getProtocolByName: does not exist (no such protocol name: tcp)"
message is actually produced by `stack` tool (Haskell package
builder). This problem still exists. I think it is some corner case,
related to gethostbyname() configuration.

I will try to contact Stack maintainers.
Thanks for quick response!
Sergey

2016-09-22 12:21 GMT+03:00 Nikolay Amiantov <a...@fmap.me>:
> Hi!
>
> This is a strange problem you have! I tested right now that at least in
> `steam.env` networking works:
>
>  nixpkgs git:(stable) ✗ TERM=xterm nix-shell -A steam.env
> steam-chrootenv:ab@abbradarbook:~/nixpkgs$
> /run/current-system/sw/bin/curl nixos.org
> 
>
> 
>
>   
> NixOS Linux
> ...
>
> You seem to have tried "nix.org" instead of "nixos.org" which is indeed
> unreachable for me -- just in case, try the latter instead.
>
> On 09/22/2016 12:04 PM, Sergey Mironov wrote:
>> Hi! I tried to use buildFHSUserEnv to create chroot environment to
>> build some tricky BuildRoot project. The function seems to do the
>> Right Thing in general except for network behavior: calling wget from
>> this environment returns following
>>
>> buildroot-env-chrootenv:smironov@ww2:~/proj/ks/kss-linux-demo$
>> LANG=C wget nix.org
>> --2016-09-22 11:56:53--  http://nix.org/
>> Resolving nix.org (nix.org)... 160.153.18.102
>> Connecting to nix.org (nix.org)|160.153.18.102|:80... failed:
>> Connection refused.
>>
>> Calling BuildRoot-powered Makefile (which requires access to the
>> network) results in following error:
>>
>> FailedConnectionException2 "raw.githubusercontent.com" 443 True
>> getProtocolByName: does not exist (no such protocol name: tcp)
>>
>> So I am guessing that the possible problem lies somewhere in the TCP
>> stack setup. Is it a known issue? How can I turn the network on?
>>
>> Regards,
>> Sergey
>> ___
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>
>
> --
> Nikolay.
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[Nix-dev] [NixDev] buildFHSUserEnv, network problems

[Sergey Mironov]

Hi! I tried to use buildFHSUserEnv to create chroot environment to
build some tricky BuildRoot project. The function seems to do the
Right Thing in general except for network behavior: calling wget from
this environment returns following

buildroot-env-chrootenv:smironov@ww2:~/proj/ks/kss-linux-demo$
LANG=C wget nix.org
--2016-09-22 11:56:53--  http://nix.org/
Resolving nix.org (nix.org)... 160.153.18.102
Connecting to nix.org (nix.org)|160.153.18.102|:80... failed:
Connection refused.

Calling BuildRoot-powered Makefile (which requires access to the
network) results in following error:

FailedConnectionException2 "raw.githubusercontent.com" 443 True
getProtocolByName: does not exist (no such protocol name: tcp)

So I am guessing that the possible problem lies somewhere in the TCP
stack setup. Is it a known issue? How can I turn the network on?

Regards,
Sergey
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[Nix-dev] Bug(?) in derivation/hashing

[Sergey Mironov]

Hi. I recently faced a strange behavior of nix, wiich resulted in
installation of package with incorrect name. Here I'd like to describe
the steps I performed.

There is an compilers/urweb/default.nix expression containing the
expression for building Ur/Web compiler. Originally, it contained the
following header

```
stdenv.mkDerivation rec {
  name = "urweb-${version}";
  version = "20151220";

  src = fetchurl {
url = "http://www.impredicative.com/ur/${name}.tgz;;
sha256 = "155maalm4l1ni7az3yqs0lrgl5f2xr3pz4118ag1hnk82qldd4s5";
  };


```

As you can see, name depends on version, and src depends on name. I
decided to bump a version. Since there is 20160805 version available,
I wanted to 1) replace "20151220" with "20160805", 2) run `nix-env -i
urweb` to see a 'Hash mismatch' error, and finaly 3) copy correct hash
to she sha256 field.

Surprisingly, `nix-env -i urweb` finished without errors. It reported
that installation of urweb-20160805 was successful, but in fact it was
old urweb-20151220 with new name. (urweb --version showed it clearly).

In order to install _real_ 20160805, I had to replace sha256 with all
zeroes, to force `nix-env -i urweb` to download correct source.

Now what do you think about it? (Besides the fact that copying hashes
from error messages is bad practice) Does nix-build really count URLs
when check fixed-hash derivations? If no (AFAIK), why is it correct?

Regards,
Sergey
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[Nix-dev] infinite recursion on newer nixpkgs

[Sergey Mironov]

Hi.
I've updated my nixpkgs up to 8983df7 and faced an infinite recursion
on the following peace of config:

  services = pkgs.lib.mkIf config.services.postgresql.enable {
postgresql.initialScript = pkgs.writeText "postgreinit.sql" ''
  create role grwlf superuser login createdb createrole replication;
  '';
  };

It worked with previous versions, what would you recommend me to do?

Regards,
Sergey
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Re: [Nix-dev] firefox + Nix + sha512

[Sergey Mironov]

Let me also note, that all Hydra links are 404 on the Wiki page, which
is referenced by the nix command line tools:

   https://nixos.org/wiki/How_to_update_when_Nix_is_too_old_to_evaluate_Nixpkgs

I tried to add the advice Vladimir gave me, but my user (ierton) have
no write permissions any more. Who can I ask to re-gain them?

2016-06-08 20:30 GMT+03:00 Sergey Mironov <grr...@gmail.com>:
> Thanks for the '--realize' command, it saved my day!
> How should I know the right Nix hash to --realize in future?
>
> Regards,
> Sergey
>
> 2016-05-22 10:45 GMT+03:00 Vladimír Čunát <vcu...@gmail.com>:
>> Hi.
>>
>> On 05/21/2016 04:00 PM, Sergey Mironov wrote:
>>> [...] Unfortunately, all the one-click-install packages are 404.
>>>
>>> Could you help me to understand what is happening? Which settings do
>>> people normally use at the moment?
>>
>> I've got no idea about what people normally use. Perhaps most of them
>> update more often.
>>
>> Instead of one-click-install, I'd use the desired path directly
>> nix-store --realize /nix/store/mf9ha2d0yz599wx3aw5r0wdzyk5f8lf7-nix-1.11.2
>> (That should be possible since using binary caches.)
>>
>>
>> I expect it isn't enough to have new nix to evaluate the expressions but
>> also running as nix-daemon. Therefore, I suggest you first update your
>> system without firefox, getting rid of the error and then you can
>> continue normally, adding it, etc.
>>
>> That should be possible in revisions after util-linux using sha256 again
>> https://github.com/NixOS/nixpkgs/pull/15048#issuecomment-219149502
>>
>>
>> --Vladimir
>>
>>
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Re: [Nix-dev] firefox + Nix + sha512

[Sergey Mironov]

Thanks for the '--realize' command, it saved my day!
How should I know the right Nix hash to --realize in future?

Regards,
Sergey

2016-05-22 10:45 GMT+03:00 Vladimír Čunát <vcu...@gmail.com>:
> Hi.
>
> On 05/21/2016 04:00 PM, Sergey Mironov wrote:
>> [...] Unfortunately, all the one-click-install packages are 404.
>>
>> Could you help me to understand what is happening? Which settings do
>> people normally use at the moment?
>
> I've got no idea about what people normally use. Perhaps most of them
> update more often.
>
> Instead of one-click-install, I'd use the desired path directly
> nix-store --realize /nix/store/mf9ha2d0yz599wx3aw5r0wdzyk5f8lf7-nix-1.11.2
> (That should be possible since using binary caches.)
>
>
> I expect it isn't enough to have new nix to evaluate the expressions but
> also running as nix-daemon. Therefore, I suggest you first update your
> system without firefox, getting rid of the error and then you can
> continue normally, adding it, etc.
>
> That should be possible in revisions after util-linux using sha256 again
> https://github.com/NixOS/nixpkgs/pull/15048#issuecomment-219149502
>
>
> --Vladimir
>
>
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[Nix-dev] firefox + Nix + sha512

[Sergey Mironov]

Hi. I faced

  error: assertion failed at
/home/grwlf/proj/nixcfg/nixpkgs/pkgs/build-support/fetchurl/default.nix:90:1

when tried to upgrade NixOS from  older release to d541e0d. After
examining the assert condition I decided to upgrade Nix from 1.10 to
nix-1.12pre4591_c879a20.

The error changed from above assert to [error: unknown hash algorithm
‘sha512’]. Looks like only firefox packages are affected (probably,
because other packages still use sha256)

There is a Wiki page

  https://nixos.org/wiki/How_to_update_when_Nix_is_too_old_to_evaluate_Nixpkgs

which contains a link to Hydra report page containing the latest built of Nix.

  
https://hydra.nixos.org/job/nixos/trunk-combined/nixpkgs.nix.x86_64-linux/latest-finished

 Unfortunately, all the one-click-install packages are 404.

Could you help me to understand what is happening? Which settings do
people normally use at the moment?

Also, is there a possibility to install new Nix directly from latest nixpkgs?

Regards,
Sergey
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[Nix-dev] Etherium software status

[Sergey Mironov]

Hi. I'd like to ask the status of expressions Etherium (a
crypto-currency platform) software. Looks like their main application
Mist is hosted at https://github.com/ethereum/mist. Were there any
attempts to package it?

Regards,
Sergey
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Re: [Nix-dev] Why is there no way to run `nix-shell` in a chroot and without the user's .bashrc?

[Sergey Mironov]

Hi. +1 from my side. I noticed that in nix-shell mode, Haskell setup
reads global package database, so I had to write a script containing
`rm -rf /run/user/1000/package.conf.d`

Regards,
Sergey


2016-05-16 20:20 GMT+03:00 zimbatm :
> Yes, we should not load the `.bashrc` unless the nix-shell is interactive
> *and* non-pure. If it's not interactive then the user doesn't need to load
> his favorite environment. If it's pure then then it's causing problems
> because the assumptions of available software made in the .bashrc are
> usually wrong.
>
> I submitted a PR a long time ago regarding this issue but it never got any
> traction (and probably needs a bit more work):
> https://github.com/NixOS/nix/pull/605
>
>
> On Mon, 16 May 2016 at 15:34 Ryan Newton  wrote:
>>
>> (I posted this question as an issue here, before realizing its more of a
>> mailing list question.)
>>
>> I'm using the Haskell stack tool's nix integration, which launches
>> everything through a nix-shell.
>>
>> Even running with --pure, nix-shell seems really impure compared to
>> nix-build. It not only mounts directories, it sources the bashrc from the
>> host system!
>>
>> Is there any way to lock down nix-shell more using current configuration
>> options? If not, is there any plan to make nix-shell more pure?
>>
>> This is especially concerning because I thought that shebang lines with
>> nix-shell were a great way to get reproducible scripts. But now I realize
>> that those scripts are much more impure and less reproducible than I
>> thought.
>>
>>
>> Thanks,
>>  -Ryan
>>
>>
>> Ryan R. Newton
>> (812) 856-4205
>> Asst. Professor
>> Indiana University - School of Informatics & Computing
>> Lindley Hall 230H
>> http://www.cs.indiana.edu/~rrnewton/
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Re: [Nix-dev] Packaging Torch

[Sergey Mironov]

Hello. After recent segfault I have re-designed Nix expression
building Torch the machine learning framework. New build2.nix doesn't
use all-in-one install script from the upstream, but builds one
package after another in form of separate derivations. This way turns
out to be successful, so we have a Torch which passes the segfault
test from the previous letter.

As a side effect, the expression contains function dealing with
luarocks (they think every language should have its own package
manager))). It would be nice to integrate it into nixpkgs. AFAIK
top-level/lua-packages doesn't really support luarocks builds at the
moment.

To check it out:

$ git clone https://github.com/grwlf/torch-distro --recursive
$ cd torch-distro
$ nix-build build2.nix -A trepl
$ ./result/bin/th

There are less than a half of the total number of packages. Still many
things to do..

Regards,
Sergey



2016-02-24 16:25 GMT+03:00 Sergey Mironov <grr...@gmail.com>:
> Unfortunately, the Torch build from
> https://github.com/grwlf/torch-distro has a Segfault problem.
>
> $ th
> th> N = 5
>   
> [0.s]
> th> A = torch.rand(N, N)
>   
> [0.0002s]
> th> A = A*A:t()
> Segmentation fault (core dumped)
>
> Core dump shows that it is the luajit who cause the fault. The source
> of a problem is still a mystery.
> Regards,
>
>
> 2016-02-19 16:27 GMT+03:00 Sergey Mironov <grr...@gmail.com>:
>> Hi again. I come to a runnable version of Torch package. Not sure it
>> works correctly, but I can see its colored command prompt.
>>
>> $ git clone https://github.com/grwlf/torch-distro --recursive
>> $ cd torch-distro
>> $ nix-build build.nix
>>
>> Install.log says that some optional packages (namely, iTorch) have
>> failed to build. Also, the package has many Lua dependencies
>> incorporated, one have to switch them to lua-packages.nix somehow.
>>
>> Regards,
>> Sergey
>>
>>
>> 2016-02-17 18:11 GMT+03:00 Sergey Mironov <grr...@gmail.com>:
>>> Thanks!
>>>
>>> I'll report the progress here :)
>>>
>>> 2016-02-16 22:04 GMT+03:00 Jonn Mostovoy <j...@memorici.de>:
>>>> I just want to point out that I wanted to build a neural network engine in
>>>> lua with some auxiliary dependencies and faced unpleasant problems with 
>>>> 'cc'
>>>> binary pointing not where the author's cmake file expected to point.
>>>> Didn't research, much, but if anything, I'd be interested to contribute to
>>>> little things when it comes to lua packaging.
>>>>
>>>> On Feb 16, 2016 7:06 PM, "William Casarin" <b...@casarin.me> wrote:
>>>>>
>>>>> On Tue, Feb 16, 2016 at 5:30 AM, Sergey Mironov <grr...@gmail.com> wrote:
>>>>> > Hi, List. I'd like to use Torch (http://torch.ch/) on NixOS and it
>>>>> > looks like I have to package it first.
>>>>>
>>>>> I was looking into this awhile back. On the lua side, some pre-reqs
>>>>> would make this a lot easier:
>>>>>
>>>>>   * luarocks2nix (https://luarocks.org/manifest.zip)
>>>>>   * packaging these https://github.com/torch/rocks
>>>>>
>>>>> This would be useful for things outside Torch as well, but looks like
>>>>> a lot of work...
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Re: [Nix-dev] Packaging Torch

[Sergey Mironov]

Unfortunately, the Torch build from
https://github.com/grwlf/torch-distro has a Segfault problem.

$ th
th> N = 5
  [0.s]
th> A = torch.rand(N, N)
  [0.0002s]
th> A = A*A:t()
Segmentation fault (core dumped)

Core dump shows that it is the luajit who cause the fault. The source
of a problem is still a mystery.
Regards,


2016-02-19 16:27 GMT+03:00 Sergey Mironov <grr...@gmail.com>:
> Hi again. I come to a runnable version of Torch package. Not sure it
> works correctly, but I can see its colored command prompt.
>
> $ git clone https://github.com/grwlf/torch-distro --recursive
> $ cd torch-distro
> $ nix-build build.nix
>
> Install.log says that some optional packages (namely, iTorch) have
> failed to build. Also, the package has many Lua dependencies
> incorporated, one have to switch them to lua-packages.nix somehow.
>
> Regards,
> Sergey
>
>
> 2016-02-17 18:11 GMT+03:00 Sergey Mironov <grr...@gmail.com>:
>> Thanks!
>>
>> I'll report the progress here :)
>>
>> 2016-02-16 22:04 GMT+03:00 Jonn Mostovoy <j...@memorici.de>:
>>> I just want to point out that I wanted to build a neural network engine in
>>> lua with some auxiliary dependencies and faced unpleasant problems with 'cc'
>>> binary pointing not where the author's cmake file expected to point.
>>> Didn't research, much, but if anything, I'd be interested to contribute to
>>> little things when it comes to lua packaging.
>>>
>>> On Feb 16, 2016 7:06 PM, "William Casarin" <b...@casarin.me> wrote:
>>>>
>>>> On Tue, Feb 16, 2016 at 5:30 AM, Sergey Mironov <grr...@gmail.com> wrote:
>>>> > Hi, List. I'd like to use Torch (http://torch.ch/) on NixOS and it
>>>> > looks like I have to package it first.
>>>>
>>>> I was looking into this awhile back. On the lua side, some pre-reqs
>>>> would make this a lot easier:
>>>>
>>>>   * luarocks2nix (https://luarocks.org/manifest.zip)
>>>>   * packaging these https://github.com/torch/rocks
>>>>
>>>> This would be useful for things outside Torch as well, but looks like
>>>> a lot of work...
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Re: [Nix-dev] Packaging Torch

[Sergey Mironov]

Hi again. I come to a runnable version of Torch package. Not sure it
works correctly, but I can see its colored command prompt.

$ git clone https://github.com/grwlf/torch-distro --recursive
$ cd torch-distro
$ nix-build build.nix

Install.log says that some optional packages (namely, iTorch) have
failed to build. Also, the package has many Lua dependencies
incorporated, one have to switch them to lua-packages.nix somehow.

Regards,
Sergey


2016-02-17 18:11 GMT+03:00 Sergey Mironov <grr...@gmail.com>:
> Thanks!
>
> I'll report the progress here :)
>
> 2016-02-16 22:04 GMT+03:00 Jonn Mostovoy <j...@memorici.de>:
>> I just want to point out that I wanted to build a neural network engine in
>> lua with some auxiliary dependencies and faced unpleasant problems with 'cc'
>> binary pointing not where the author's cmake file expected to point.
>> Didn't research, much, but if anything, I'd be interested to contribute to
>> little things when it comes to lua packaging.
>>
>> On Feb 16, 2016 7:06 PM, "William Casarin" <b...@casarin.me> wrote:
>>>
>>> On Tue, Feb 16, 2016 at 5:30 AM, Sergey Mironov <grr...@gmail.com> wrote:
>>> > Hi, List. I'd like to use Torch (http://torch.ch/) on NixOS and it
>>> > looks like I have to package it first.
>>>
>>> I was looking into this awhile back. On the lua side, some pre-reqs
>>> would make this a lot easier:
>>>
>>>   * luarocks2nix (https://luarocks.org/manifest.zip)
>>>   * packaging these https://github.com/torch/rocks
>>>
>>> This would be useful for things outside Torch as well, but looks like
>>> a lot of work...
>>> ___
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Re: [Nix-dev] Packaging Torch

[Sergey Mironov]

Thanks!

I'll report the progress here :)

2016-02-16 22:04 GMT+03:00 Jonn Mostovoy <j...@memorici.de>:
> I just want to point out that I wanted to build a neural network engine in
> lua with some auxiliary dependencies and faced unpleasant problems with 'cc'
> binary pointing not where the author's cmake file expected to point.
> Didn't research, much, but if anything, I'd be interested to contribute to
> little things when it comes to lua packaging.
>
> On Feb 16, 2016 7:06 PM, "William Casarin" <b...@casarin.me> wrote:
>>
>> On Tue, Feb 16, 2016 at 5:30 AM, Sergey Mironov <grr...@gmail.com> wrote:
>> > Hi, List. I'd like to use Torch (http://torch.ch/) on NixOS and it
>> > looks like I have to package it first.
>>
>> I was looking into this awhile back. On the lua side, some pre-reqs
>> would make this a lot easier:
>>
>>   * luarocks2nix (https://luarocks.org/manifest.zip)
>>   * packaging these https://github.com/torch/rocks
>>
>> This would be useful for things outside Torch as well, but looks like
>> a lot of work...
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[Nix-dev] Packaging Torch

[Sergey Mironov]

Hi, List. I'd like to use Torch (http://torch.ch/) on NixOS and it
looks like I have to package it first. The task is not going to be
easy due to (lots of) Lua and NodeJS dependencies. Also, they require
what Ubuntu guys call webkit-qt. Do we have this package?

I've established a forked repo

   https://github.com/grwlf/torch-distro

containing ./build.nix file of initial declarations (doesn't work yet)
I'll be glad to receive advice/contributions from anyone.

Regards,
Sergey
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[Nix-dev] Using Nix as a package manager (for yet another language)

[Sergey Mironov]

Hi, List. I've just noticed a long topic regarding using NIx as a
package manager for a language. Сoincidentally, I use Nix for the same
purpose: I am working on packaging UrWeb libraries using Nix.

Here is the combinators library I wrote
[1] - https://github.com/grwlf/urweb-build/blob/master/default.nix
Here is an example of package recipe script
[2] - https://github.com/grwlf/urweb-soup/blob/master/build.nix

Nix-build works fine as a replacement for GNU Make. But here comes an
interesting question. What if I want to package a Nix-driven library
for NixOS ?? I don't know how to do it at the moment.

The problem is at the line 7 of [1]: I import  here.
Packaging this 'build-script' for NixOS means running nix-build from
the builder of mkDerivation, in pure environment where we do not have
NIX_PATH (am I right?). And AFAIK it is a top of an iceberg.

So what do you think, how to call nix-build from the mkDerivation's
build script and make it aware of the same Nixpkgs tree the top-level
nix-build (which runs current mkDerivation) uses?

Regards,
Sergey
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Re: [Nix-dev] An issue regarding the default parameters of a function

[Sergey Mironov]

Thanks, It is clear. I would also vote for shorter code here.

Sergey

2016-02-12 14:21 GMT+03:00 Vladimír Čunát <vcu...@gmail.com>:
> Hi.
>
> On 02/12/2016 12:11 PM, Sergey Mironov wrote:
>> I have an issue regarding the combination of two Nix features:
>> default parameters ( f = {arg ? def } : ...) and arbitrary length
>> parameters (f = args@{arg, ...} : ...).
>
> @-pattern binds exactly what was *passed* to the function. Eelco
> considers that a feature IIRC. There's been a discussion about this on a
> couple of nix issues on github.
>
> Personally, I would prefer to bind the attrmap after substituting
> defaults, as that seems much more useful, but that would be a
> non-compatible change to nix...
>
> --Vladimir
>
>
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[Nix-dev] Link to NixOS package

[Sergey Mironov]

Hi,

Is it possible to get a link pointing to a package page on NixOS
Website? AFAIK, Hydra doesn't build the package I mean (urweb) so
hydra.nixos.org/job/.. is not representative in this case. The package
is functioning and can be compiled locally. It would be nice to let
users know that they can type `nix-env -i -A pkgs.urweb' to install
it. What options do I have?

Regards,
Sergey
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Re: [Nix-dev] Link to NixOS package

[Sergey Mironov]

Ah, Thanks. Hydra jobsets are really tricky thing to understand. I
picked a Haskell package link from Hackage as an example and tried
http://hydra.nixos.org/job/nixpkgs/trunk/urweb. It is 4 years old,
thats why I thought there is no binary for urweb.

2016-01-28 23:20 GMT+03:00 Vladimír Čunát <vcu...@gmail.com>:
> On 01/28/2016 08:45 PM, Sergey Mironov wrote:
>> AFAIK, Hydra doesn't build the package I mean (urweb)
>
> It does build urweb
> http://hydra.nixos.org/job/nixos/trunk-combined/nixpkgs.urweb.x86_64-linux
>
> --Vladimir
>
>
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Re: [Nix-dev] NixCon St. Petersburg 2016

[Sergey Mironov]

Hi! I am very glad to read news like this. It is a good place for
meeting from my point of view, since it is close to Moscow where I am
from. I'll probably visit the conference and tell friends about it.

Regards,
Sergey

2016-01-22 0:19 GMT+03:00 stewart mackenzie :
> Generally, as long as you stick with networks of good people you'll be fine.
> I'm sure everyone in the LGBTQS community will have a grand time!
>
> St. Petersburg!? What a fine place travel destination!
>
> On 22 Jan 2016 03:39, "Aaron Levin"  wrote:
>> if any
>
>
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Re: [Nix-dev] Pass arguments to 'required' configs

[Sergey Mironov]

Nicolas, this solution makes sense if I understand how to include
private modules to local configuration. (We are discussing this in a
separate thread).

Regards,
Sergey

2015-11-17 17:55 GMT+03:00 Nicolas Pierron <nicolas.b.pier...@gmail.com>:
> Hi Sergey,
>
> If you are not using the proxy_port and proxy_host values for
> selecting the modules, I suggest you use the module system instead.
> This means that your previous example would become something like the
> example below. This solution is a bit more verbose, but you might be
> able to introspect these options with nixos-option command line tool
> and NixUI.
>
> // configuration.nix
> {
>   require = [
> /etc/nixos/configuration.nix
> ./include/global_bash_aliases.nix
>   ];
>
>   custom.go.proxy.port = 4343;
>   custom.go.proxy.host = "myproxy.local";
>   …
> }
>
> // ./include/global_bash_aliases.nix
>
> { config, pkgs, lib, ... } :
>
> with lib;
> {
>   options = {
> custom.go.proxy.port = mkOption {
>   default = 4242;
>   example = 4343;
>   type = types.uniq types.int;
>   description = ''
> port number used by the goproxy shell alias command.
>   '';
> };
>
> custom.go.proxy.host = mkOption {
>   example = "example.com";
>   type = types.uniq types.str;
>   description = ''
> host name used by the goproxy shell alias command.
>   '';
> };
>   };
>
>   config = {
> environment = {
>
>   extraInit = with config.custom.go.proxy ''
>  alias goproxy "nc ${port} ${host}
>   '';
> };
>   };
> }
>
>
> On Tue, Nov 17, 2015 at 2:17 PM, Sergey Mironov <grr...@gmail.com> wrote:
>> Hi. This is a follow-up to my previous letter about Private NixOS modules.
>>
>> Another thing I am missing is the ability to pass arguments to
>> 'required' configuration modules. Below is the illustration of the
>> idea. Could you please give me some advice on this?
>>
>> Regards,
>> Sergey
>>
>>
>> // configuration.nix
>>
>> {config, pkgs, ...}:
>> let
>>   proxy_port = "4343";
>>   proxy_host = "myproxy.local";
>> in
>> {
>>   require = [
>> /etc/nixos/hardware-configuration.nix
>> ..
>> (withArguments ./include/global_bash_aliases.nix { inherit
>> proxy_port  proxy_host; })
>> ..
>>   ];
>>  ...
>>
>> }
>>
>>
>> //./include/global_bash_aliases.nix
>>
>> { proxy_port, proxy_host} :
>> { config, pkgs, ... } :
>> {
>>   environment = rec {
>>
>> extraInit = ''
>>alias goproxy "nc ${proxy_port} ${proxy_host}
>> '';
>>   };
>>
>> }
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>
>
> --
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Re: [Nix-dev] [nix-dev] private NixOS modules

[Sergey Mironov]

Oh, Thanks. I really should re-read the manual :)

Sergey

2015-11-18 12:16 GMT+03:00 Nicolas Pierron <nicolas.b.pier...@gmail.com>:
> Hi Sergey,
>
> We have a some documenation in the NixOS Manual [1] which explains how
> to do that.  To make it short, your configuration.nix file should have
> an import attribute which is a list of additional modules that you
> want to include.
> So if you file configuration.nix looks something like (a), you want to
> convert it to something similar to (b)
>
> ** (a):
> {
>   services.openssh.enable = true = …;
>   …
> }
>
> ** (b):
>
> {
>   imports = [ ./custom-service.nix ];
>   services.openssh.enable = true = …;
>   …
> }
>
> [1] http://nixos.org/nixos/manual/index.html#sec-modularity
>
> On Wed, Nov 18, 2015 at 8:14 AM, Sergey Mironov <grr...@gmail.com> wrote:
>> Nicolas, I didn't know about NIXOS_EXTRA_MODULE_PATH, thanks.
>> Could you explain other possible solution in a bit more details? How
>> can we include modified module list in configuration.nix?
>>
>> Regards,
>> Sergey
>>
>> 2015-11-17 17:43 GMT+03:00 Nicolas Pierron <nicolas.b.pier...@gmail.com>:
>>> Hi Sergey,
>>>
>>> I think you can set the NIXOS_EXTRA_MODULE_PATH [1] environment
>>> variable to achieve that.
>>> Otherwise, you can change your configuration.nix file to always
>>> include your new module list, and to include your own real-config.nix
>>>
>>> [1] 
>>> https://github.com/NixOS/nixpkgs/blob/master/nixos/lib/eval-config.nix#L30
>>>
>>>
>>> On Tue, Nov 17, 2015 at 2:04 PM, Sergey Mironov <grr...@gmail.com> wrote:
>>>> Hi. I'd like to write a couple of NixOS modules which probably don't
>>>> look meaningful for large audience. Normally, we keep modules in
>>>> nixpkgs/nixos/modules directory and list them in module-list.nix file.
>>>> In my case, I'd like to put module in a private place (which is my git
>>>> repo which keeps nixpkgs as a Git submodule). Is it possible to
>>>> 'include' them in the public list to make them accessible from
>>>> per-system.nix files?
>>>>
>>>> As a result, I'd like to be able to write in configuration.nix
>>>> something like the following:
>>>>
>>>> services.my-custom-service = {
>>>>   enable = true;
>>>>   ...
>>>> }
>>>>
>>>> without including expression for my-custom-service in the public tree.
>>>>
>>>> Regards,
>>>> Sergey
>>>> ___
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>>>
>>>
>>>
>>> --
>>> Nicolas Pierron
>>> http://www.linkedin.com/in/nicolasbpierron - http://nbp.name/
>
>
>
> --
> Nicolas Pierron
> http://www.linkedin.com/in/nicolasbpierron - http://nbp.name/
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Re: [Nix-dev] [nix-dev] private NixOS modules

[Sergey Mironov]

Nicolas, I didn't know about NIXOS_EXTRA_MODULE_PATH, thanks.
Could you explain other possible solution in a bit more details? How
can we include modified module list in configuration.nix?

Regards,
Sergey

2015-11-17 17:43 GMT+03:00 Nicolas Pierron <nicolas.b.pier...@gmail.com>:
> Hi Sergey,
>
> I think you can set the NIXOS_EXTRA_MODULE_PATH [1] environment
> variable to achieve that.
> Otherwise, you can change your configuration.nix file to always
> include your new module list, and to include your own real-config.nix
>
> [1] https://github.com/NixOS/nixpkgs/blob/master/nixos/lib/eval-config.nix#L30
>
>
> On Tue, Nov 17, 2015 at 2:04 PM, Sergey Mironov <grr...@gmail.com> wrote:
>> Hi. I'd like to write a couple of NixOS modules which probably don't
>> look meaningful for large audience. Normally, we keep modules in
>> nixpkgs/nixos/modules directory and list them in module-list.nix file.
>> In my case, I'd like to put module in a private place (which is my git
>> repo which keeps nixpkgs as a Git submodule). Is it possible to
>> 'include' them in the public list to make them accessible from
>> per-system.nix files?
>>
>> As a result, I'd like to be able to write in configuration.nix
>> something like the following:
>>
>> services.my-custom-service = {
>>   enable = true;
>>   ...
>> }
>>
>> without including expression for my-custom-service in the public tree.
>>
>> Regards,
>> Sergey
>> ___
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>
>
>
> --
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> http://www.linkedin.com/in/nicolasbpierron - http://nbp.name/
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Re: [Nix-dev] Pass arguments to 'required' configs

[Sergey Mironov]

Sorry, I just noticed that you have modified my example radically.
Looks like this is the answer to my question regarding custom modules,
thanks!

Sergey

2015-11-18 12:11 GMT+03:00 Sergey Mironov <grr...@gmail.com>:
> Nicolas, this solution makes sense if I understand how to include
> private modules to local configuration. (We are discussing this in a
> separate thread).
>
> Regards,
> Sergey
>
> 2015-11-17 17:55 GMT+03:00 Nicolas Pierron <nicolas.b.pier...@gmail.com>:
>> Hi Sergey,
>>
>> If you are not using the proxy_port and proxy_host values for
>> selecting the modules, I suggest you use the module system instead.
>> This means that your previous example would become something like the
>> example below. This solution is a bit more verbose, but you might be
>> able to introspect these options with nixos-option command line tool
>> and NixUI.
>>
>> // configuration.nix
>> {
>>   require = [
>> /etc/nixos/configuration.nix
>> ./include/global_bash_aliases.nix
>>   ];
>>
>>   custom.go.proxy.port = 4343;
>>   custom.go.proxy.host = "myproxy.local";
>>   …
>> }
>>
>> // ./include/global_bash_aliases.nix
>>
>> { config, pkgs, lib, ... } :
>>
>> with lib;
>> {
>>   options = {
>> custom.go.proxy.port = mkOption {
>>   default = 4242;
>>   example = 4343;
>>   type = types.uniq types.int;
>>   description = ''
>> port number used by the goproxy shell alias command.
>>   '';
>> };
>>
>> custom.go.proxy.host = mkOption {
>>   example = "example.com";
>>   type = types.uniq types.str;
>>   description = ''
>> host name used by the goproxy shell alias command.
>>   '';
>> };
>>   };
>>
>>   config = {
>> environment = {
>>
>>   extraInit = with config.custom.go.proxy ''
>>  alias goproxy "nc ${port} ${host}
>>   '';
>> };
>>   };
>> }
>>
>>
>> On Tue, Nov 17, 2015 at 2:17 PM, Sergey Mironov <grr...@gmail.com> wrote:
>>> Hi. This is a follow-up to my previous letter about Private NixOS modules.
>>>
>>> Another thing I am missing is the ability to pass arguments to
>>> 'required' configuration modules. Below is the illustration of the
>>> idea. Could you please give me some advice on this?
>>>
>>> Regards,
>>> Sergey
>>>
>>>
>>> // configuration.nix
>>>
>>> {config, pkgs, ...}:
>>> let
>>>   proxy_port = "4343";
>>>   proxy_host = "myproxy.local";
>>> in
>>> {
>>>   require = [
>>> /etc/nixos/hardware-configuration.nix
>>> ..
>>> (withArguments ./include/global_bash_aliases.nix { inherit
>>> proxy_port  proxy_host; })
>>> ..
>>>   ];
>>>  ...
>>>
>>> }
>>>
>>>
>>> //./include/global_bash_aliases.nix
>>>
>>> { proxy_port, proxy_host} :
>>> { config, pkgs, ... } :
>>> {
>>>   environment = rec {
>>>
>>> extraInit = ''
>>>alias goproxy "nc ${proxy_port} ${proxy_host}
>>> '';
>>>   };
>>>
>>> }
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>>> nix-dev@lists.science.uu.nl
>>> http://lists.science.uu.nl/mailman/listinfo/nix-dev
>>
>>
>>
>> --
>> Nicolas Pierron
>> http://www.linkedin.com/in/nicolasbpierron - http://nbp.name/
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[Nix-dev] [nix-dev] private NixOS modules

[Sergey Mironov]

Hi. I'd like to write a couple of NixOS modules which probably don't
look meaningful for large audience. Normally, we keep modules in
nixpkgs/nixos/modules directory and list them in module-list.nix file.
In my case, I'd like to put module in a private place (which is my git
repo which keeps nixpkgs as a Git submodule). Is it possible to
'include' them in the public list to make them accessible from
per-system.nix files?

As a result, I'd like to be able to write in configuration.nix
something like the following:

services.my-custom-service = {
  enable = true;
  ...
}

without including expression for my-custom-service in the public tree.

Regards,
Sergey
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[Nix-dev] Pass arguments to 'required' configs

[Sergey Mironov]

Hi. This is a follow-up to my previous letter about Private NixOS modules.

Another thing I am missing is the ability to pass arguments to
'required' configuration modules. Below is the illustration of the
idea. Could you please give me some advice on this?

Regards,
Sergey


// configuration.nix

{config, pkgs, ...}:
let
  proxy_port = "4343";
  proxy_host = "myproxy.local";
in
{
  require = [
/etc/nixos/hardware-configuration.nix
..
(withArguments ./include/global_bash_aliases.nix { inherit
proxy_port  proxy_host; })
..
  ];
 ...

}


//./include/global_bash_aliases.nix

{ proxy_port, proxy_host} :
{ config, pkgs, ... } :
{
  environment = rec {

extraInit = ''
   alias goproxy "nc ${proxy_port} ${proxy_host}
'';
  };

}
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[Nix-dev] Encrypted partition via loop device, syncronization

[Sergey Mironov]

Hi, List.

I have an idea of setting up a small encrypted partition for storing
things like passwords, wallets etc. The additional feature I want is
synchronization: I'd like to use syncthing or rsync or whatever to
synchronize the encrypted binary file with the whole partition between
several machines. Of cause, I know little about kernel behavior when
syncing data to disk. I am afraid it is non-atomic so there is a risk
of damaging partition file during synchronization. But are there any
technologies which address this issue? Did anybody solve this or
similar task?

If so, please, drop me a related reading.

Thanks in advance,
Sergey
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[Nix-dev] syncthing questions

[Sergey Mironov]

Hi, List! I have two questions regarding Syncthing synchronization
service. They may be not strongly related to Nix but I'd like to ask
here before going to the upstream's forum.

1) I've upgraded NixOS installations on both desktop and server
workstations recently. After the upgrade I noticed that syncthing IDs
were changed, so I had to re-setup the connection using Web-GUI. Is it
possible to preserve the IDs ? Or should we think about making this
type of configuration static by providing NixOS wrappers for
'device'/'folders' options? (I am not sure if it is possible or not)

2) I keep my synced data in the /home/syncthing folder and I want it
to be of 'syncthing:users' user/group with 770 permissions. Older
NixOS setup seems to handle it well, but the new one seems to reset
the permissions to 'syncthing:root' 700 every hour. Could it be a
systemd new behavior or it's the syncthing who does this?

Regards,
Sergey
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Re: [Nix-dev] syncthing questions

[Sergey Mironov]

OK, I have solved my syncthing-related problems. It turns out that I
misused service.syncthing.dataDir config option. I thought it is
pre-defined data directory to syncronize, but it is configuration-only
directory in reality!

Regards,
Sergey


2015-09-21 22:28 GMT+03:00 Sergey Mironov <grr...@gmail.com>:
> 2015-09-21 14:39 GMT+03:00 zimbatm <zimb...@zimbatm.com>:
>> Hi Sergey,
>>
>> Have you setup syncthing using the config.services.syncthing.enable = true
>> in /etc/nixos/configuration.nix ?
>> The service is creating /var/lib/syncthing by default. This is a better
>> place to put the files, home folders should be private.
>>
>> Cheers,
>> z
>>
>> On Mon, 21 Sep 2015 at 12:19 Sergey Mironov <grr...@gmail.com> wrote:
>>>
>>> Hi, List! I have two questions regarding Syncthing synchronization
>>> service. They may be not strongly related to Nix but I'd like to ask
>>> here before going to the upstream's forum.
>>>
>>> 1) I've upgraded NixOS installations on both desktop and server
>>> workstations recently. After the upgrade I noticed that syncthing IDs
>>> were changed, so I had to re-setup the connection using Web-GUI. Is it
>>> possible to preserve the IDs ? Or should we think about making this
>>> type of configuration static by providing NixOS wrappers for
>>> 'device'/'folders' options? (I am not sure if it is possible or not)
>>>
>>> 2) I keep my synced data in the /home/syncthing folder and I want it
>>> to be of 'syncthing:users' user/group with 770 permissions. Older
>>> NixOS setup seems to handle it well, but the new one seems to reset
>>> the permissions to 'syncthing:root' 700 every hour. Could it be a
>>> systemd new behavior or it's the syncthing who does this?
>>>
>>> Regards,
>>> Sergey
>>> ___
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>
>
> Zimbatm, I would have faced another kind of problems with disabled
> syncthing :) Yes, I set syncthing.enable to true. Here is my config
>
> { config, pkgs, ... } :
> {
>   services.syncthing.enable = true;
>   services.syncthing.dataDir = "/home/syncthing";
>
>   users.extraUsers = {
>
> syncthing = {
>   group = "users";
>   home = "/home/syncthing";
>   useDefaultShell = true;
> };
>
>   };
> }
>
> I use /home as a storage for two reasons: 1) I run syncthing as a
> separate user, I think its not bad to put it in its own home. 2) /home
> is mounted on separate hard drive partition, and this partition is
> large. / (root) lives in a limited amount of space, so I don't want to
> garbage it with user data.
>
> Regards,
> Sergey
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Re: [Nix-dev] Haskell: Stackage and Nix

[Sergey Mironov]

Hi! I am also interested in handling Stackage packages with NixOS. I
personally think that NixOS itself does all the things Stackage do and
more. Unfortunately, I am to build several existing projects which use
Stackage and not Nix.

Nikita, are you going to patch Stack with patchelf or construct a
chroot env instead?

Regards,
Sergey


2015-07-14 1:57 GMT+03:00 Nikita Karetnikov :
> Is there a way to build packages from Stackage?  It'd be cool to have a
> separate namespace for that, so I could refer to a package as
> stackagePackages.something.
>
> That's the only relevant post I've found:
> http://article.gmane.org/gmane.linux.distributions.nixos/15724
>
> But it seems to require a lot of work.
>
> For the record, I'm aware of Stack and trying it now, but it's also not
> pleasant because you have to manage non-Haskell libs yourself.
>
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Re: [Nix-dev] Nix expression for OpenModelica

[Sergey Mironov]

New instance of OpenModelica pull request is here. This one has some
environment fixes included which make it possible to actually run the
simulation.

https://github.com/NixOS/nixpkgs/pull/8949

2015-07-21 14:39 GMT+03:00 Sergey Mironov grr...@gmail.com:
 I agree, adding OM expression to nixpkgs is the preferred way. The
 reason I started with standalone expression is the complexity of OM
 building scenario. The major problem arises from the fact, that
 Makefile calls GIT and SVN to fetch additional sources (more than 70
 libraries are fetched this way!). Standalone expression allowed me to
 debug the generic build process with nix-shell.

 Today I finished the complete expression, the pull request is available at
 https://github.com/NixOS/nixpkgs/pull/8918

 Github already reports about Travis CI build failure. In the details
 section one could find:

 Auto-merging pkgs/top-level/all-packages.nix
 error: while querying the derivation named ‘pypy2.6-rainbowstream-1.2.7’:
 while evaluating the attribute ‘postPatch’ of the derivation
 ‘pypy2.6-rainbowstream-1.2.7’ at
 /home/travis/.nox/nixpkgs/pkgs/development/python-modules/generic/default.nix:65:3:
 attribute ‘sitePackages’ missing, at
 /home/travis/.nox/nixpkgs/pkgs/top-level/python-packages.nix:7515:19

 What does Travis try to make? What can I do to fix it?

 Regards,
 Sergey



 2015-06-18 15:28 GMT+03:00 Rok Garbas r...@garbas.si:
 Quoting Sergey Mironov (2015-06-14 00:38:05)
 Hi! I've started to write Nix expression for building OpenModelica
 (https://openmodelica.org/index.php) the open source simulation
 environment. Currently, I have several 'standalone' nix expressions located 
 at
 https://github.com/grwlf/nixcfg/tree/openmodelica/src/pkgs/OpenModelica

 At the moment, builder is able to pass configuration stage, but
 it runs out of memory somewhere in the middle of compilation:
 OpenModelica is a big thing, but my machine is not. If anyone has
 interest in building the tool, you are welcome to join the initiative!


 i would suggest you open a pull request against github.com/NixOS/nixpkgs so
 that others can test it easier.


 --
 Rok Garbas - http://www.garbas.si
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[Nix-dev] [nix-dev] fetchsvn fails to go via proxy

[Sergey Mironov]

Hi! I am (forced into) using a proxy server. I have configured it as
shown at the end of the letter. In general, almost everything works.
Unfortunately, it seems that fetchsvn is not the case. I have the
following errors while trying to build the package from sources stored
in an SVN repository:

exporting 
https://svn.modelica.org/projects/Modelica_ElectricalSystems/InstantaneousSymmetricalComponents
(r7978) into 
/nix/store/cfqczyh4imw9i8k7ickgaaxrvrlf4hi3-InstantaneousSymmetricalComponents-r7978
svn: E670002: Unable to connect to a repository at URL
'https://svn.modelica.org/projects/Modelica_ElectricalSystems/InstantaneousSymmetricalComponents'
svn: E670002: Could not resolve proxy server
'Mironov_S:MYPASS@proxy.avp.ru': Name or service not known
builder for 
‘/nix/store/96kgnmzpi2c82gp89q5mbcahzv0qmmd1-InstantaneousSymmetricalComponents-r7978.drv’
failed with exit code 1
cannot build derivation
‘/nix/store/q8mhi07n5rs3rxji1x8bz2q1v4361n42-fakegit.drv’: 1
dependencies couldn't be built

Git and other fetchers seem to work fine, As far as I know, it is the
SVN-specific problem. What can be wrong with it?

Regards,
Sergey

PS

my working proxy is configured like this:

  networking = {
hostName = ww2;
networkmanager.enable = true;
proxy.default = Mironov_S:${import passwords/proxy}@proxy.avp.ru:3128;
  };
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Re: [Nix-dev] Nix expression for OpenModelica

[Sergey Mironov]

I agree, adding OM expression to nixpkgs is the preferred way. The
reason I started with standalone expression is the complexity of OM
building scenario. The major problem arises from the fact, that
Makefile calls GIT and SVN to fetch additional sources (more than 70
libraries are fetched this way!). Standalone expression allowed me to
debug the generic build process with nix-shell.

Today I finished the complete expression, the pull request is available at
https://github.com/NixOS/nixpkgs/pull/8918

Github already reports about Travis CI build failure. In the details
section one could find:

Auto-merging pkgs/top-level/all-packages.nix
error: while querying the derivation named ‘pypy2.6-rainbowstream-1.2.7’:
while evaluating the attribute ‘postPatch’ of the derivation
‘pypy2.6-rainbowstream-1.2.7’ at
/home/travis/.nox/nixpkgs/pkgs/development/python-modules/generic/default.nix:65:3:
attribute ‘sitePackages’ missing, at
/home/travis/.nox/nixpkgs/pkgs/top-level/python-packages.nix:7515:19

What does Travis try to make? What can I do to fix it?

Regards,
Sergey



2015-06-18 15:28 GMT+03:00 Rok Garbas r...@garbas.si:
 Quoting Sergey Mironov (2015-06-14 00:38:05)
 Hi! I've started to write Nix expression for building OpenModelica
 (https://openmodelica.org/index.php) the open source simulation
 environment. Currently, I have several 'standalone' nix expressions located 
 at
 https://github.com/grwlf/nixcfg/tree/openmodelica/src/pkgs/OpenModelica

 At the moment, builder is able to pass configuration stage, but
 it runs out of memory somewhere in the middle of compilation:
 OpenModelica is a big thing, but my machine is not. If anyone has
 interest in building the tool, you are welcome to join the initiative!


 i would suggest you open a pull request against github.com/NixOS/nixpkgs so
 that others can test it easier.


 --
 Rok Garbas - http://www.garbas.si
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Re: [Nix-dev] [nix-dev] fetchsvn fails to go via proxy

[Sergey Mironov]

Looks like I've found the key to the problem. Fetchsvn expression is
not able to parse my $http_proxy var correctly. It extracts only
host/port from it, while in my case username and password are also
encoded. The correct implementation in my case should form the 4
fields in the .subversion/servers file generated:

http-proxy-host = proxy.avp.ru
http-proxy-port = 3128
http-proxy-username=Mironov_S
http-proxy-password=Password

The conclusion is: fetchsvn has to be updated in order to handle more
common cases

Regards,
Sergey



2015-07-21 11:13 GMT+03:00 Sergey Mironov grr...@gmail.com:
 Hi! I am (forced into) using a proxy server. I have configured it as
 shown at the end of the letter. In general, almost everything works.
 Unfortunately, it seems that fetchsvn is not the case. I have the
 following errors while trying to build the package from sources stored
 in an SVN repository:

 exporting 
 https://svn.modelica.org/projects/Modelica_ElectricalSystems/InstantaneousSymmetricalComponents
 (r7978) into 
 /nix/store/cfqczyh4imw9i8k7ickgaaxrvrlf4hi3-InstantaneousSymmetricalComponents-r7978
 svn: E670002: Unable to connect to a repository at URL
 'https://svn.modelica.org/projects/Modelica_ElectricalSystems/InstantaneousSymmetricalComponents'
 svn: E670002: Could not resolve proxy server
 'Mironov_S:MYPASS@proxy.avp.ru': Name or service not known
 builder for 
 ‘/nix/store/96kgnmzpi2c82gp89q5mbcahzv0qmmd1-InstantaneousSymmetricalComponents-r7978.drv’
 failed with exit code 1
 cannot build derivation
 ‘/nix/store/q8mhi07n5rs3rxji1x8bz2q1v4361n42-fakegit.drv’: 1
 dependencies couldn't be built

 Git and other fetchers seem to work fine, As far as I know, it is the
 SVN-specific problem. What can be wrong with it?

 Regards,
 Sergey

 PS

 my working proxy is configured like this:

   networking = {
 hostName = ww2;
 networkmanager.enable = true;
 proxy.default = Mironov_S:${import passwords/proxy}@proxy.avp.ru:3128;
   };
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[Nix-dev] Nix expression for OpenModelica

[Sergey Mironov]

Hi! I've started to write Nix expression for building OpenModelica
(https://openmodelica.org/index.php) the open source simulation
environment. Currently, I have several 'standalone' nix expressions located at
https://github.com/grwlf/nixcfg/tree/openmodelica/src/pkgs/OpenModelica

At the moment, builder is able to pass configuration stage, but
it runs out of memory somewhere in the middle of compilation:
OpenModelica is a big thing, but my machine is not. If anyone has
interest in building the tool, you are welcome to join the initiative!

Regars,
Sergey
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[Nix-dev] bluetooth status query

[Sergey Mironov]

Hi! I'd like to buy Bluetooth keyboard and headset but I have no
experience of setting them up with Linux. What is current status of
bluez5, does anybody try to use it? What is the status of
pulseaudioFull I saw in nixpkgs? Does it work?

Regards,
Sergey
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Re: [Nix-dev] Bash completion makes bash startup awefully slow

[Sergey Mironov]

+1 from here. I remember, in Gentoo one could select the groups of
completion scripts to include into file

Regards,
Sergey

2015-02-14 14:54 GMT+03:00 Wout Mertens wout.mert...@gmail.com:
 Err, can you quantify how slow bash starts up?

 Anyway, Marc Weber has been working on modular bash completion, see
 http://permalink.gmane.org/gmane.linux.distributions.nixos/15757

 Maybe that should be part of NixOS.

 Wout.

 On Sat Feb 14 2015 at 11:55:46 AM Matthias Beyer m...@beyermatthias.de
 wrote:

 Hi!

 On 13-02-2015 11:23:07, Wout Mertens wrote:
  I'd start by finding out what is slow. The bash completion reads a bunch
  of
  files iirc, so copy the package and insert time measurements.

 I know, it reads the whole completion stuff, right? Maybe we should
 make this part more modular, so one can include what's required and
 exclude what's not.

 
  Also, you could upgrade to SSD for your root disk...
 

 I _have_ an SSD for my root disk! And an octocore processor and 16GB
 Ram. It takes too long anyways!

  Also, maybe zsh is faster?
 

 Sorry, but I won't switch shell as long as there is a way to improve
 things!

  On Tue Feb 10 2015 at 10:21:46 PM Matthias Beyer m...@beyermatthias.de
  wrote:
 
   Hi,
  
   we already had this on this ML, but the question which was posted (not
   by me, btw) got no answer.
  
   I can't live withou bash completion. But using it makes bash awefully
   slow at startup. Is there a way to enhance this situation?
  
  
   --
   Mit freundlichen Grüßen,
   Kind regards,
   Matthias Beyer
  
   Proudly sent with mutt.
   Happily signed with gnupg.
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 --
 Mit freundlichen Grüßen,
 Kind regards,
 Matthias Beyer

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[Nix-dev] NetworkManager Ad-Hoc problem

[Sergey Mironov]

Hi! I've got a trouble connecting to my mobile phone's Ad-Hoc network
with NetworkManager. The log contains the following [1]. Quick
googling [2] shows that it may be a WPA problem, or the driver
problem. Could you please advice how to fix it? Dow we use WPA or
WPA2?

I forked from 96d6344b131cad5af56ecef5cef7b4fd515e1982


Regards,
Sergey

[1]
фев 18 16:58:24 greyblade kernel: IPv6: ADDRCONF(NETDEV_UP): wlp1s0:
link is not ready
фев 18 16:58:23 greyblade kernel: iwlwifi :01:00.0: Radio type=0x2-0x1-0x0
фев 18 16:58:23 greyblade kernel: iwlwifi :01:00.0: L1 Enabled;
Disabling L0S
фев 18 16:58:23 greyblade NetworkManager[18901]: warn Activation
(wlp1s0) failed for connection 'Nokia_N9'
фев 18 16:58:23 greyblade NetworkManager[18901]: warn Activation
(wlp1s0/wireless): Ad-Hoc network creation took too long, failing
activation.
(Note, the log messages order is reversed)

[2] 
https://mail.gnome.org/archives/networkmanager-list/2014-October/msg00020.html
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Re: [Nix-dev] NixOS 14.12 released

[Sergey Mironov]

Thanks and happy new year!

2014-12-31 17:19 GMT+03:00 Luca Bruno lethalma...@gmail.com:
 Thanks a lot to everybody for the effort. Will be a great release.

 On Wed, Dec 31, 2014 at 2:13 PM, Rok Garbas r...@garbas.si wrote:

 Awesome news! tnx everybody.
 Domen you rock!

 On Wed, Dec 31, 2014 at 1:29 PM, Jascha Geerds j...@ekby.de wrote:
  Awesome! Thanks to everyone and especially Domen.
 
  --
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j...@ekby.de
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Re: [Nix-dev] NixOps, managing virtual hardware and network

[Sergey Mironov]

2014-12-01 16:30 GMT+04:00 Wout Mertens wout.mert...@gmail.com:
 You'll have to create bridged networks in Virtualbox, one for each
 interface. Then you assign them to each VM.

 I'd just make an extra interface configurable and give your VMs a third
 interface. The other two are used for internet access and connecting from
 the host.

 To connect to a virtualbox host with nixops, just do nixops ssh system
 name

 Wout.


Hi Wout! I've finished the minimal setup I need using the design you
have suggested. The modifications allow virtual machines to
effectively 'monopolize' certain Host's adapters. I don't see any
notable interference between Host's and Guest's networking stacks.

The branch located at

  https://github.com/grwlf/nixops/tree/vb-bridged-interface

contains the following modifications:
1) deployment.virtualbox.hostBridgedInterface  - accepts host's
interface name to be bridged with interface #3 of a particular virtual
machine
2) deployment.virtualbox.guestBridgedMac - accepts MAC address of the
guest's adapter #3.

I think I should test the setup more closely before merge. For now I
will be glad to receive any comments (choice of names for parameters,
etc).

Thanks,
Sergey
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Re: [Nix-dev] Nix as a dotfiles manager

[Sergey Mironov]

 2014-12-01 13:28 GMT+03:00 Sergey Mironov grr...@gmail.com:

 Hi. I've adopted the following compromise solution:
 1) Add the file include/templatecfg.nix with the following contents
 { config, pkgs, ... } :

 {
   environment.etc.template_XResources.source = ../cfg/Xresources;
   environment.etc.template_vimrc.source = ../cfg/vimrc;
   environment.etc.template_ssh_config.source = ../cfg/ssh_config;

   /* note, it should be possible to define inplace config here like
 following:
 environment.etc.template_ssh_config.source = textFile dotbla ''
   [dotbla config contents]
 '';
   */
 }

 2) put template configs mentioned there in the ../cfg folder

 3) For every machine, add

   require = [
 ...
 ./include/templatecfg.nix
 ...];

 Now, every time I want to update my $HOME/.dotfiles I copy them from
 /etc/template_* files. From the other side, sometimes I want to commit
 my changed .dotfiles back into Nix repository. In this case I copy
 them from $HOME to the $HOME/proj/mynixcfg//cfg/

 Your solution is really nice, but I want to automate it (esp the process of
 deploying my env on new machine), I can copy files now and manage them by
 git..

This is a tricky thing. I don't know what is your task exactly, but
typically, we deploy multy-user systems and we want supply users with
_default_ configs, for example, when we create their HOMEs. But after
that, users begin to manage their configs at their own. Managing
.dotfiles via git is one possible solution. Another solution - to
include cron task to copy /etc/template* to every user's HOME every
time system starts (for example). In this case you would have to
re-deploy whole system (make grub menu entry and so on) every time you
want to change your .bashrc.
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Re: [Nix-dev] NixOps, managing virtual hardware and network

[Sergey Mironov]

Hi, Wout!

 yup, NixOps fits the bill, but I'm not sure what you mean with being bound
 to the host's physical adapter.
 When you deploy virtualboxes with NixOps it gives the VM 2 interfaces: One
 host-local and one on vboxnet0. If you want a different setup you'll have to
 tweak nixops here:
 https://github.com/NixOS/nixops/blob/41cf9ed862c13a4171c77e3494f9b7ca59a8adc0/nixops/backends/virtualbox.py#L363-L369

 (if you do, make it configurable and send a PR please :-) )

Great! I've tested the NixOps and I think I'll take it:) By bounding I
mean that VM should control one of my Host's interfaces, not just hide
behind NAT. Currently, my Host machine has 4 unused network adapters
installed, so I will be able to create up to 4 VMs featuring this
option. I hope it is possible to do using VBoxManage.

After deploying trivial-vbox-based setup I really found a VM with 2
interfaces: one connected to Hosts's vboxnet0, and another, set to IP
of 10.0.2.15. It's not clear for me yet how to access it.

 As for specifying configuration of host and vboxen in one go, NixOps doesn't
 do that. It only runs virtualboxes on localhost.
 You can write a systemd service that starts the nixops network if you
 like...


OK, I think I'll go with just a set of virtualboxes for now.

Thanks a lot,
Sergey
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[Nix-dev] NixOps, managing virtual hardware and network

[Sergey Mironov]

Hi, List! Please, help me to decide what deployment tools (NixOps?) to
use for the
following task:

I'd like to build a test server for testing a hardware NAT device. The server
should be a Host machine hosting 2-4 Virtual machines. Every Virtual machine
should have 2 ethernet adapters: first one should be bound to Host's physical
adapter (the network traffic emulator), the second  one should be connected
to the internal virtual network (the management interface).

The exact set of software deployed onto Virtual machines depends on particular
test scenario, but it typically includes some http, ftp, voice, video
broadcasting
servers and clients.

Does NixOps have required functionality to fit into this task? Does it allow
specifying configuration for the Host and it's guest machines in one
expression (I assume VirtualBox to be a virtualization container)?
What about tweaking VirtualBox hardware?

Should I consider looking at other deployment tools?

Thanks in advance,
Sergey
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Re: [Nix-dev] fetching tarballs recursively

[Sergey Mironov]

Replacing --import/--export instead of --dump/--restore also leads to
problems. This time, the error is

$ cat dump | nix-store --import
importing path 
`/nix/store/n69kz335c800n2b6izsjbw60rlnvp87c-binutils-2.23.1.tar.bz2'
error: imported archive of
`/nix/store/n69kz335c800n2b6izsjbw60rlnvp87c-binutils-2.23.1.tar.bz2'
lacks a signature

what kind of signature does nix-store expect?


2014-10-30 5:59 GMT+04:00 James Cook james.c...@utoronto.ca:
 I don't have a concrete answer, but two things come to mind:

 - /nix/store is mounted read-only by default on NixOS, so it might not
 be a permissions issue.  (The nix tools do something clever every time
 the want to write to it.)

 - Looking at the man page for nix-store, the --import and --export
 options might make more sense than --dump and --restore, but I haven't
 used any of this myself.

 James


 On 29 October 2014 06:58, Sergey Mironov grr...@gmail.com wrote:
 Hi! I have one more question regarding the topic: how to restore the
 collected tarballs back into /nix/store? I've tried to --dump them and
 later --restore , but the nix-store errored with errors like

 $ cat dump | nix-store --restore
 /nix/store/zwp4iadr91lbfynn61vnzs8i1fv003gj-bash42-016
 error: creating file
 `/nix/store/zwp4iadr91lbfynn61vnzs8i1fv003gj-bash42-016': Read-only
 file system

 I expected nix-store to create the target path as nixbldX user, but
 looks like it is not the case. Is it expected behavior for nix-store
 --restore?

 Regards,
 Sergey

 PS
 My current nixpkgs is quite old at the moment.



 2014-05-30 13:53 GMT+04:00 Wout Mertens wout.mert...@gmail.com:
 I turned that into a wiki page with bad formatting (on phone)

 https://nixos.org/wiki/Download_all_sources

 I hope my explanation is correct.

 Wout.

 On May 30, 2014 10:59 AM, Eelco Dolstra eelco.dols...@logicblox.com
 wrote:

 Hi,

 On 30/05/14 09:48, Sergey Mironov wrote:

  Hi! I am managing an nixpkgs branch and this branch become more and
  more older. There already were issues where I had to change mirror
  urls because of missing sources. I'd like to store as much as possible
  into local repository in order to protect myself from such situations.
  Is there a way to recursively traverse nix expression tree and collect
  (and fetch) all the 'src' tarballs automatically?

 See here:

 http://lists.science.uu.nl/pipermail/nix-dev/2013-January/010438.html

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Re: [Nix-dev] fetching tarballs recursively

[Sergey Mironov]

Hi! I have one more question regarding the topic: how to restore the
collected tarballs back into /nix/store? I've tried to --dump them and
later --restore , but the nix-store errored with errors like

$ cat dump | nix-store --restore
/nix/store/zwp4iadr91lbfynn61vnzs8i1fv003gj-bash42-016
error: creating file
`/nix/store/zwp4iadr91lbfynn61vnzs8i1fv003gj-bash42-016': Read-only
file system

I expected nix-store to create the target path as nixbldX user, but
looks like it is not the case. Is it expected behavior for nix-store
--restore?

Regards,
Sergey

PS
My current nixpkgs is quite old at the moment.



2014-05-30 13:53 GMT+04:00 Wout Mertens wout.mert...@gmail.com:
 I turned that into a wiki page with bad formatting (on phone)

 https://nixos.org/wiki/Download_all_sources

 I hope my explanation is correct.

 Wout.

 On May 30, 2014 10:59 AM, Eelco Dolstra eelco.dols...@logicblox.com
 wrote:

 Hi,

 On 30/05/14 09:48, Sergey Mironov wrote:

  Hi! I am managing an nixpkgs branch and this branch become more and
  more older. There already were issues where I had to change mirror
  urls because of missing sources. I'd like to store as much as possible
  into local repository in order to protect myself from such situations.
  Is there a way to recursively traverse nix expression tree and collect
  (and fetch) all the 'src' tarballs automatically?

 See here:

 http://lists.science.uu.nl/pipermail/nix-dev/2013-January/010438.html

 --
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[Nix-dev] Skype drops support for ALSA

[Sergey Mironov]

Hi, I've discovered that Skype doesn't see my audio devices any more.
Investigation shows that no ALSA support exist in Skype any more so I
had to install PulseAudio service to make it work again. Should we
declare somehow this new dependency?

Regards,
Sergey
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[Nix-dev] Moving /nix/store to another partition

[Sergey Mironov]

Hi, List!  Looks like I've made not wise choice of locating /nix/store
in root (/) partition on my build server. Now all 'no space left on a
device' are my friends.  Is it possible to relocate /nix/store's
contents into /home (located on a much larger partition) without
re-installing the entire system? In other words, I want my /nix/store
to be a symlink pointing to /home/nix/store.   Is it safe to just boot
from the CD, move /nix/store to /home and drop the symlink ? Is there
a well-known algorithm of solving this administration task? Store
symlink management is the main thing I am worrying about.

Regards,
Sergey

PS

Currently, mount | grep /dev/sda1 outputs the following:

/dev/sda1 on / type ext4 (rw,relatime,data=ordered)
/dev/sda1 on /nix/store type ext4 (ro,relatime,data=ordered)
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[Nix-dev] Fwd: Moving /nix/store to another partition

[Sergey Mironov]

Sorry, forgot to CC to all.


-- Forwarded message --
From: Sergey Mironov grr...@gmail.com
Date: 2014-07-28 14:34 GMT+04:00
Subject: Re: [Nix-dev] Moving /nix/store to another partition
To: Luca Bruno lethalma...@gmail.com


2014-07-28 13:59 GMT+04:00 Luca Bruno lethalma...@gmail.com:
 On 28/07/2014 11:54, Sergey Mironov wrote:

 Relocating means rebuilding everything from scratch.
 The other possibility is to bind mount /home/nix/store to /nix/store.
 The problem is that the nix store is needed in initrd. So the bind mount
 is not easy, you may end up with the system not booting.

Interestingly. I didn't think about initrd. In theory, I may try to
customize the initrd script to do bind mount (I hope I have HDD driver
compiled in kernel). What do you think, will it be sufficient? Should
I do the bind mount once again during stage2 ?

Regards,
Sergey
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Re: [Nix-dev] Moving /nix/store to another partition

[Sergey Mironov]

Thanks! I'll try to relocate it this way.

Regards,
Sergey

2014-07-28 14:41 GMT+04:00 Eelco Dolstra eelco.dols...@logicblox.com:
 Hi,

 On 28/07/14 11:54, Sergey Mironov wrote:

 Hi, List!  Looks like I've made not wise choice of locating /nix/store
 in root (/) partition on my build server. Now all 'no space left on a
 device' are my friends.  Is it possible to relocate /nix/store's
 contents into /home (located on a much larger partition) without
 re-installing the entire system? In other words, I want my /nix/store
 to be a symlink pointing to /home/nix/store.   Is it safe to just boot
 from the CD, move /nix/store to /home and drop the symlink ?

 /nix/store or /nix cannot be symlinks, but they can be bind mounts. So you can
 boot from the CD, move /nix to /home, and add an entry like:

   fileSystems./nix =
 { device = /home/nix;
   fsType = none;
   options = bind;
 };

 to configuration.nix. Also set the neededForBoot option on the /home 
 filesystem
 to true, otherwise it won't be mounted in stage 1 of the boot, and the bind
 mount will fail.

 You can then run nixos-install to rebuild the configuration (which shouldn't
 take long since the only change was to fileSystems).

 You can probably also do this without the CD by: 1) updating configuration.nix
 as above; 2) running nixos-rebuild boot; 3) copying /nix to /home/nix; 4)
 rebooting.

 --
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[Nix-dev] eval or in-place expression execution

[Sergey Mironov]

Hi. I need to do non-trivial string calculations (encrypt the password
with openssl) which AFAIK can't be written in Nix at the moment.
That's why I think about Nix `eval` equivalent. I wonder if it goes
against Nix concepts or not? My implementation looks like the
following:

  encryptPassword = salt: pass : let
p = runCommand encryptPassword {} ''
  printf '%s\n' `${openssl}/bin/openssl passwd -1 -salt ${salt}
${pass}`  $out
  '';
in
  import p;   # === (1)

It works but note the `import' expression. I tried builtins.readFile
instead of it in previous attempt but failed: Nix issued  [error:
string `... (1)' cannot refer to other paths] error. What is the
reason of such a difference between readFile and import?

Regards,
Sergey
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Re: [Nix-dev] eval or in-place expression execution

[Sergey Mironov]

I agree, design is questionable, bu I keep automatic tests together
with system being developed. Tests should know the original password
so I store it as plain Nix string. But my main question relates to the
fact that `import' can read the calculated path from /nix/store and
`builtins.readFile' can not. Is it a bug or a feature? Maybe import
also should block such attempts and I've just found an exploit?



2014-07-11 12:04 GMT+04:00 Luca Bruno lethalma...@gmail.com:
 On 11/07/2014 09:46, Sergey Mironov wrote:
 Hi. I need to do non-trivial string calculations (encrypt the password
 with openssl) which AFAIK can't be written in Nix at the moment.
 That's why I think about Nix `eval` equivalent. I wonder if it goes
 against Nix concepts or not? My implementation looks like the
 following:

   encryptPassword = salt: pass : let
 p = runCommand encryptPassword {} ''
   printf '%s\n' `${openssl}/bin/openssl passwd -1 -salt ${salt}
 ${pass}`  $out
   '';
 in
   import p;   # === (1)

 It works but note the `import' expression. I tried builtins.readFile
 instead of it in previous attempt but failed: Nix issued  [error:
 string `... (1)' cannot refer to other paths] error. What is the
 reason of such a difference between readFile and import?
 readFile is plain reading the contents of the file. import parses the
 file as a nix expression.
 However putting plain passwords in nix configurations is not a good
 thing. It's better if you write the password already encrypted in a
 file, and read it with readFile.

 Best regards
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Re: [Nix-dev] Compile Haskell program on nixos that works on ubuntu server

[Sergey Mironov]

Hi! My 2 cents: I create /nix/store on standalone server and copy all
the dependencies (as listed by nix-store -qR app) there in order to
run NixOS application. Of cause, I use root access in order to do it.

Refards,
Sergey

2014-07-06 15:56 GMT+04:00 Vladimír Čunát vcu...@gmail.com:
 On 07/05/2014 11:38 PM, Cody Goodman wrote:

 How would I go about packaging the libs needed to do static linking?


 Like this, for example: https://github.com/NixOS/nixpkgs/pull/3194

 You can cherry-pick this on top of your preferred branch by
 $ curl https://github.com/NixOS/nixpkgs/pull/3194.patch | git am

 Rebuilding gmp and ghc takes some time, but I took care to avoid changing
 stdenv (which does depend on gmp).


 Vlada



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Re: [Nix-dev] string vs path hell

[Sergey Mironov]

OK, you are right. My code snippet really works fine. So I feel I must
post a part of my real code which still doesn't work for me. It is a
bit long, but maybe you will be able to help me find a mistake. Here
it is (below). This expression takes a set of paths to the executables
(exe // setuids) and builds the initrd image. Every attribute of (exe
// setuids) is either a string like [adduser =
${busybox}/sbin/adduser;] or the result of mkDerivation producing
the single binary in it's $out.

Note the dummy expression. If I uncomment builtins.trace dummy
line, it will show me the expected result (string dummy for every
list item). But in the same time, builtins.trace fn shows that fn is
evaluated incorrectly. Every time it contains full Nix path
(/nix/strote/..., see example at the end of the letter) instead of
the filename part. It looks like 'splitString' doesn't recognize it's
argument as a string.

Please, comment!
Sergey


--
the code

  ...

  img = makeInitrd {

compressor = ${gzip}/bin/gzip --fast;

contents = with all.ipkgs;
  [{ symlink = /init;
object = exe.init;
  }
  { symlink = /bin/sh;
object = exe.shell;
  }] ++
  map (v :

let

  takeFileName = p : let
  fl = lib.splitString / p;
in lib.last fl;

  fn = takeFileName ${v};

  dummy = takeFileName /a/string/encoded/path/dummy;

in

# builtins.trace fn   #  see example output below
# builtins.trace dummy

{
  symlink = /bin/${fn};
  object = v;
}) (lib.attrValues (exe // setuids));
  };

--
example output of builtins.trace fn:

trace: /nix/store/sx19dvnv3wi2j8pvyra8npl9vdwdbmrk-busybox-1.21.1/sbin/addgroup
trace: /nix/store/sx19dvnv3wi2j8pvyra8npl9vdwdbmrk-busybox-1.21.1/sbin/adduser
trace: /nix/store/sx19dvnv3wi2j8pvyra8npl9vdwdbmrk-busybox-1.21.1/bin/false
trace: /nix/store/sx19dvnv3wi2j8pvyra8npl9vdwdbmrk-busybox-1.21.1/bin/true
trace: /nix/store/sx19dvnv3wi2j8pvyra8npl9vdwdbmrk-busybox-1.21.1/bin/awk
trace: /nix/store/sx19dvnv3wi2j8pvyra8npl9vdwdbmrk-busybox-1.21.1/bin/cat
trace: /nix/store/sx19dvnv3wi2j8pvyra8npl9vdwdbmrk-busybox-1.21.1/bin/chmod
trace: /nix/store/sx19dvnv3wi2j8pvyra8npl9vdwdbmrk-busybox-1.21.1/bin/chown
trace: /nix/store/sx19dvnv3wi2j8pvyra8npl9vdwdbmrk-busybox-1.21.1/bin/cp
trace: /nix/store/h8rs91fjivsh6wakmwmpkca31wfp38g0-msr-tools-1.3/bin/cpuid
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Re: [Nix-dev] string vs path hell

[Sergey Mironov]

Wow, Nix strings are not that simple at all. I'll now go and make my
own copy of splitString with '==' replaced by 'lib.eqSttring' as you
have suggested.

Thanks for the explanation!
Sergey

2014-06-10 13:27 GMT+04:00 Kirill Elagin kirela...@gmail.com:
 So, here is what I found.

 Strings in nix have contexts:
 https://github.com/NixOS/nix/blob/master/src/libexpr/value.hh#L45.
 When you compare strings with  `==`, those contexts also get compared.

 So, `lib.splitString`, obviously, uses `==` internally to compare substrings
 with the separator, and since `/` doesn't have any context the comparison
 will never yield true.

 I'm not really sure what is the proper workaround here. I guess, in your
 case this might be the right thing to do:

 ~~~
 nix-repl lib.splitString / a
 [ /nix/store/nn00kn1fa0154qa1szszijw825cha8ps-busybox-1.22.1/foo/bar ]

 nix-repl lib.splitString / (builtins.unsafeDiscardStringContext a)

 [  nix store nn00kn1fa0154qa1szszijw825cha8ps-busybox-1.22.1 foo
 bar ]
 ~~~

 Another option is changing `splitString` to use `lib.eqString` which
 basically concatenates contexts before doing `==`. But I'm not sure, that
 might break something.

 So, as another workaround, you can concatenate the contexts yourself:

 ~~~
 nix-repl lib.splitString / a
 [ /nix/store/nn00kn1fa0154qa1szszijw825cha8ps-busybox-1.22.1/foo/bar ]

 nix-repl lib.splitString (lib.substring 0 0 a + /) a

 [  nix store nn00kn1fa0154qa1szszijw825cha8ps-busybox-1.22.1 foo
 bar ]
 ~~~


 --
 Кирилл Елагин


 On Tue, Jun 10, 2014 at 1:11 PM, Kirill Elagin kirela...@gmail.com wrote:

 Going further:

 ~~~
 nix-repl a = ${pkgs.busybox}/foo/bar

 nix-repl b =
 /nix/store/nn00kn1fa0154qa1szszijw825cha8ps-busybox-1.22.1/foo/bar

 nix-repl a
 /nix/store/nn00kn1fa0154qa1szszijw825cha8ps-busybox-1.22.1/foo/bar

 nix-repl b
 /nix/store/nn00kn1fa0154qa1szszijw825cha8ps-busybox-1.22.1/foo/bar

 nix-repl lib.substring 0 1 a
 /

 nix-repl lib.substring 0 1 b
 /

 nix-repl lib.substring 0 1 a == /
 false

 nix-repl lib.substring 0 1 b == /
 true
 ~


 --
 Кирилл Елагин


 On Tue, Jun 10, 2014 at 1:04 PM, Kirill Elagin kirela...@gmail.com
 wrote:

 Oh yeah, I've managed to reproduce this:

 ~
 nix-repl :l nixpkgs
 Added 3863 variables.

 nix-repl lib.splitString / ${pkgs.busybox}/foo/bar
 [ /nix/store/nn00kn1fa0154qa1szszijw825cha8ps-busybox-1.22.1/foo/bar ]

 nix-repl lib.splitString / (toString ${pkgs.busybox}/foo/bar)
 [ /nix/store/nn00kn1fa0154qa1szszijw825cha8ps-busybox-1.22.1/foo/bar ]

 nix-repl lib.splitString /
 /nix/store/nn00kn1fa0154qa1szszijw825cha8ps-busybox-1.22.1/foo/bar
 [  nix store nn00kn1fa0154qa1szszijw825cha8ps-busybox-1.22.1
 foo bar ]
 ~

 Total weirdness.


 --
 Кирилл Елагин


 On Tue, Jun 10, 2014 at 12:58 PM, Kirill Elagin kirela...@gmail.com
 wrote:

 
 let lib = (import nixpkgs {}).lib;
 exe = {
   foo = /some/path/to/foo;
   bar = /other/path/to/bar;
 };
 in
 {
   contents =

 map (v :
   let
 takeFileName = p :
   let fl = lib.splitString / p; in lib.last fl;
 fn = takeFileName ${v};
 dummy = takeFileName /a/string/encoded/path/dummy;
   in

 #builtins.trace fn
 #builtins.trace dummy


 {
   symlink = /bin/${fn};
   object = v;
 }) (lib.attrValues exe);
 }
 ~~

 
 nix-repl :l test.nix
 Added 1 variables.

 nix-repl :p contents
 [ { object = /other/path/to/bar; symlink = /bin/bar; } { object =
 /some/path/to/foo; symlink = /bin/foo; } ]
 ~

 Dunno, you should probably inspect your `exe` set closer in case
 something's wrong with values there.


 --
 Кирилл Елагин


 On Tue, Jun 10, 2014 at 10:41 AM, Sergey Mironov grr...@gmail.com
 wrote:

 OK, you are right. My code snippet really works fine. So I feel I must
 post a part of my real code which still doesn't work for me. It is a
 bit long, but maybe you will be able to help me find a mistake. Here
 it is (below). This expression takes a set of paths to the executables
 (exe // setuids) and builds the initrd image. Every attribute of (exe
 // setuids) is either a string like [adduser =
 ${busybox}/sbin/adduser;] or the result of mkDerivation producing
 the single binary in it's $out.

 Note the dummy expression. If I uncomment builtins.trace dummy
 line, it will show me the expected result (string dummy for every
 list item). But in the same time, builtins.trace fn shows that fn is
 evaluated incorrectly. Every time it contains full Nix path
 (/nix/strote/..., see example at the end of the letter) instead of
 the filename part. It looks like 'splitString' doesn't recognize it's
 argument as a string.

 Please, comment!
 Sergey


 --
 the code

   ...

   img = makeInitrd {

 compressor = ${gzip}/bin/gzip --fast;

 contents = with all.ipkgs;
   [{ symlink = /init;
 object = exe.init

[Nix-dev] string vs path hell

[Sergey Mironov]

Hi. I've faced a path/string problem. Looks like the code

lib.splitString - (toString (./some/valid/path))

returns [ ./some/valid/path ] instead of [ some valid path ]

in other words, looks like paths are treated in a some special way.

Is it a known issue?

Regards,
Sergey
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Re: [Nix-dev] string vs path hell

[Sergey Mironov]

2014-06-09 16:34 GMT+04:00 Luca Bruno lethalma...@gmail.com:
 On 09/06/2014 14:32, Sergey Mironov wrote:
 lib.splitString - (toString (./some/valid/path))
 Perhaps you should split by / instead of -?

Sorry, this is my copypaste mistake. I've meant another file name. The
correct code is

lib.splitString / (toString (./some/valid/path))

the problem does exist for me.
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[Nix-dev] fetching tarballs recursively

[Sergey Mironov]

Hi! I am managing an nixpkgs branch and this branch become more and
more older. There already were issues where I had to change mirror
urls because of missing sources. I'd like to store as much as possible
into local repository in order to protect myself from such situations.
Is there a way to recursively traverse nix expression tree and collect
(and fetch) all the 'src' tarballs automatically?

Thanks in advance,
Sergey

PS

Once I have the sources, I'll probably do something like

for s in $ALL_SOURCES ; do
nix-store --add $s
done

in order to build my tree without accessing mirrors/upstream ftps
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Re: [Nix-dev] xfce: 'lock screen' button

[Sergey Mironov]

Thanks! Didn't know i3lock. It works fine.

For the dm-tool, it doesn't work as expected

$ dm-tool lock
command does nothing and /var/log/lightdm.log contains [see below].
Could you please compare this snippet with your own?

Regards,
Sergey

--
/var/log/lightdm.log (after dm-tool)

[+1287786.07s] DEBUG: Seat: Locking
[+1287786.07s] DEBUG: Seat: Creating greeter session
[+1287786.07s] DEBUG: Seat: Setting XDG_SEAT=seat0
[+1287786.07s] DEBUG: Seat: Creating display server of type x
[+1287786.07s] DEBUG: Seat: Starting local X display
[+1287786.07s] DEBUG: Using VT 8
[+1287786.07s] DEBUG: DisplayServer x-1: Logging to /var/log/x-1.log
[+1287786.07s] DEBUG: DisplayServer x-1: Writing X server authority to
/run/root/:1
[+1287786.07s] DEBUG: DisplayServer x-1: Launching X Server
[+1287786.07s] DEBUG: Launching process 11047:
/nix/store/393nb5f1kg32f5m2z388ab2rfdny2q7d-xserver-wrapper :1 -auth
/run/root/:1 -nolisten tcp vt8 -novtswitch
[+1287786.07s] DEBUG: DisplayServer x-1: Waiting for ready signal from
X server :1
[+1287786.08s] DEBUG: Process 11047 exited with return value 1
[+1287786.08s] DEBUG: DisplayServer x-1: X server stopped
[+1287786.08s] DEBUG: Releasing VT 8
[+1287786.08s] DEBUG: DisplayServer x-1: Removing X server authority
/run/root/:1
[+1287786.08s] DEBUG: Seat: Display server stopped
[+1287786.08s] DEBUG: Seat: Stopping session
[+1287786.08s] DEBUG: Seat: Session stopped
[+1287786.08s] DEBUG: Seat: Stopping display server, no sessions require it



2014-05-16 17:32 GMT+04:00 Kirill Elagin kirela...@gmail.com:
 Yeah, and to ask lightdm to lock your session you do `dm-tool lock`.


 --
 Кирилл Елагин


 On Fri, May 16, 2014 at 11:06 AM, Domen Kožar do...@dev.si wrote:

 That's how I override default:

 $ type -P xflock4
 /home/ielectric/bin/xflock4

 $ cat /home/ielectric/bin/xflock4
 scrot /tmp/screen_locked.png
 convert /tmp/screen_locked.png -scale 10% -scale 1000%
 /tmp/screen_locked.png
 killall -SIGUSR1 dunst
 DISPLAY=:0.0 i3lock -i /tmp/screen_locked.png --nofork -d
 killall -SIGUSR2 dunst



 On Fri, May 16, 2014 at 8:56 AM, Sergey Mironov grr...@gmail.com wrote:

 Hi. A question to Xfce gurus:

 In my current config the 'lock screen' button performs no action. If I
 install xscreensaver, the button will run it, but the login prompt
 window looks a bit .. Xy.  Does anybody know how to connect 'lock
 screen' button with lightdm display manager?

 Regards,
 Sergey
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[Nix-dev] xfce: 'lock screen' button

[Sergey Mironov]

Hi. A question to Xfce gurus:

In my current config the 'lock screen' button performs no action. If I
install xscreensaver, the button will run it, but the login prompt
window looks a bit .. Xy.  Does anybody know how to connect 'lock
screen' button with lightdm display manager?

Regards,
Sergey
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[Nix-dev] Nix language: converting an attribute set to a list

[Sergey Mironov]

Hi. Nix language has a built-in function builtins.listToAttrs which
converts list to the Attrs. I'm searching a way to make an opposite
thing - convert attrs to a list. Say, I'd like to convert

  users = {
root = { name = root; group = groups.root; };
ssh = { name = ssh ; group = groups.nogroup ; severity = 33; };
  };

to a list like this:

  [
{ name = root; group = groups.root; }
{ name = ssh ; group = groups.nogroup ; severity = 33; }
  ];

to use it later both in shell scripting, as list

lib.map  (toList users) (u: ''
  adduser ${u.name} ${u.group}
'');

.. and in derivations, by reference

stdenv.mkDerivation ssh {
  user = users.ssh;
};

In order to workaround the problem I have to add additional field
`list' (like below) but this way I have to duplicate field names which
is not good (easy to forget). So Is it possible to do the
transformation in a more
safe way?

Regards,
Sergey

# A workaround

  users = rec {
root = { name = root; group = groups.root; };
ssh = { name = ssh ; group = groups.nogroup ; severity = 33; };
list = [ root ssh ];
  };
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[Nix-dev] Fwd: Installing wireless drivers

[Sergey Mironov]

Probably, you have made a mistake in the configuration.nix. Here is my
config which enables wicd, please re-check your layout.

https://github.com/grwlf/nixpkgs/blob/local/machines/samsung-np900x3c.nix

And here is another config, this time containing NetworkManager

https://github.com/grwlf/nixpkgs/blob/local/machines/samsung-np900x3c-v2.nix

Hope, they help.

Regards,
Sergey

2014-04-01 5:39 GMT+04:00 Raahul Kumar raahul.ku...@gmail.com:
 I have Sergey, unfortunatley nixos is saying it doesn't recognize those
 options.

 error: user-thrown exception: The option `wicd' defined in
 `/etc/nixos/configuration.nix' does not exist.
 (use `--show-trace' to show detailed location information)
 building the system configuration...
 error: The option `wicd' defined in `/etc/nixos/configuration.nix' does not
 exist.

 Looks like all the options have changed. So how do I setup using
 NetworkMangager?


 On Mon, Mar 31, 2014 at 9:27 PM, Sergey Mironov grr...@gmail.com wrote:

 Hi. Have you checked this wiki?

 https://nixos.org/wiki/WICD

 By the way, NetworkManager or KDE's equivalent may be a better choice
 for managing wireless networks. Wicd worked for me too, but it looks
 abandoned by it's developers.

 Regards,
 Sergey


 2014-03-31 10:10 GMT+04:00 Raahul Kumar raahul.ku...@gmail.com:
  Hi guys,
 
  i've recently switched to a wireless configuration. Where can I download
  the
  WICD and other wireless packages? I'm on 64bit nixos. And after
  downloading,
  how do I install them? I do have a windows laptop to download packages
  with.
 
  Aloha,
  RK.
 
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Re: [Nix-dev] NiJS package manager

[Sergey Mironov]

Hi! Interesting project, but I mostly agree with Colin: asynchronous
programming is hard and in my opinion wouldn't become a 'killer
feature'. More, I am sure there are concepts in functional languages
which will overcome the callback-passing approach of JavaScript. I
think, Haskell's continuation monad is one of such concepts since it
allows writing code with callbacks in a plain imperative manner.

From the other side, Nix language has some uniq features which I found
to be very strong.

First one is recursive records which allows us to 'tie the knot' so
easily. Various `callPackage' functions use it and it is easy to
define new custom versions for different needs.

The second one is ' '  ...   ' ' (string notation sugar) with
anti-quotations. I don't know other languages supporting this thing
(Haskell is close with it's Template Haskell facilities) and I now
think it is a must have thing for a package management language. I use
this notation here and there for writing safer shell scripts and even
for in-nix C programming. The example [at the end of the letter] may
looks too complicated but it works flawlessly in Nix. In contrast, I
think JavaScript wouldn't give me enough flexibility to allow such
style.

Regards,
Sergey

--


let

mount = ${busybox}/bin/mount;

data_partition = rec {
name = Data;
device = /dev/sda3;
mountpoint = /mnt/${name};
};

# Shell script snippet
with_mounted_partition = p: fn : ''
${mount} ${p.mountpoint}
(  ${fn p.mountpoint} )
ret=$?
${umount} ${p.mountpoint}
(exit $ret)
  '';


# A 'safer' shell script
installation_script = writeText install.sh ''
#!${shell}

#.. a larger script ...

${with_mounted_partition data_partition (mp: ''
cp bzImage ${mp}/kernel/bzImage
'')}

#.. continue larger script ..

'';

in

makeIsoImage {

buildCommand = ''
 cp ${installation_script} $out
'';

  }





2014-04-01 14:11 GMT+04:00 Sander van der Burg - EWI s.vanderb...@tudelft.nl:
 Hello Nixers,

 After a year of hard work, I proudly want to present you NiJS: the
 asynchronous package manager.

 In NiJS, you can use the more popular, innovating and future proof
 JavaScript language to specify package build specifications while still
 having most of the useful goodies that Nix has.

 Furthermore, because it's asynchronous and I/O events are non-blocking, it's
 also very fast and highly scalable.

 More info:

 http://sandervanderburg.blogspot.com/2014/04/asynchronous-package-management-with.html

 Best,

 Sander


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Re: [Nix-dev] NiJS package manager

[Sergey Mironov]

OK, april 1st?

2014-04-01 23:11 GMT+04:00 Sergey Mironov grr...@gmail.com:
 Hi! Interesting project, but I mostly agree with Colin: asynchronous
 programming is hard and in my opinion wouldn't become a 'killer
 feature'. More, I am sure there are concepts in functional languages
 which will overcome the callback-passing approach of JavaScript. I
 think, Haskell's continuation monad is one of such concepts since it
 allows writing code with callbacks in a plain imperative manner.

 From the other side, Nix language has some uniq features which I found
 to be very strong.

 First one is recursive records which allows us to 'tie the knot' so
 easily. Various `callPackage' functions use it and it is easy to
 define new custom versions for different needs.

 The second one is ' '  ...   ' ' (string notation sugar) with
 anti-quotations. I don't know other languages supporting this thing
 (Haskell is close with it's Template Haskell facilities) and I now
 think it is a must have thing for a package management language. I use
 this notation here and there for writing safer shell scripts and even
 for in-nix C programming. The example [at the end of the letter] may
 looks too complicated but it works flawlessly in Nix. In contrast, I
 think JavaScript wouldn't give me enough flexibility to allow such
 style.

 Regards,
 Sergey

 --


 let

 mount = ${busybox}/bin/mount;

 data_partition = rec {
 name = Data;
 device = /dev/sda3;
 mountpoint = /mnt/${name};
 };

 # Shell script snippet
 with_mounted_partition = p: fn : ''
 ${mount} ${p.mountpoint}
 (  ${fn p.mountpoint} )
 ret=$?
 ${umount} ${p.mountpoint}
 (exit $ret)
   '';


 # A 'safer' shell script
 installation_script = writeText install.sh ''
 #!${shell}

 #.. a larger script ...

 ${with_mounted_partition data_partition (mp: ''
 cp bzImage ${mp}/kernel/bzImage
 '')}

 #.. continue larger script ..

 '';

 in

 makeIsoImage {

 buildCommand = ''
  cp ${installation_script} $out
 '';

   }





 2014-04-01 14:11 GMT+04:00 Sander van der Burg - EWI 
 s.vanderb...@tudelft.nl:
 Hello Nixers,

 After a year of hard work, I proudly want to present you NiJS: the
 asynchronous package manager.

 In NiJS, you can use the more popular, innovating and future proof
 JavaScript language to specify package build specifications while still
 having most of the useful goodies that Nix has.

 Furthermore, because it's asynchronous and I/O events are non-blocking, it's
 also very fast and highly scalable.

 More info:

 http://sandervanderburg.blogspot.com/2014/04/asynchronous-package-management-with.html

 Best,

 Sander


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Re: [Nix-dev] Installing wireless drivers

[Sergey Mironov]

(Sorry, forgot to reply to all)

Hi. Have you checked this wiki?

https://nixos.org/wiki/WICD

By the way, NetworkManager or KDE's equivalent may be a better choice
for managing wireless networks. Wicd worked for me too, but it looks
abandoned by it's developers.

Regards,
Sergey

2014-03-31 10:10 GMT+04:00 Raahul Kumar raahul.ku...@gmail.com:
 Hi guys,

 i've recently switched to a wireless configuration. Where can I download the
 WICD and other wireless packages? I'm on 64bit nixos. And after downloading,
 how do I install them? I do have a windows laptop to download packages with.

 Aloha,
 RK.

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[Nix-dev] login: Cannot make/remove an entry for the specified session

[Sergey Mironov]

Hi. A question to PAM wizards: what may be wrong with my login setup?
`login' returns the [topic] error when I start it from the console. Is
this method still supported or maybe systemd denies it?
I'm trying to setup the shellinaboxd server (a web console), and it
uses `login' in this way to start user session.

Regards,
Sergey


--
Sample session:

(root) # login
MyMachine login: grwlf
Password:

Cannot make/remove an entry for the specified session

(root) #
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Re: [Nix-dev] Compiling Thunar from git

[Sergey Mironov]

 I actually started with copying Thunar from nixpkgs, and
 https://nixos.org/wiki/Howto_develop_software_on_nixos#Example_1:_Using_nix-shell_to_Initialize_a_Development_Shell
 I have made a small change in Thunar source and I wanted to test it, and it
 seems appropriate to do it with git HEAD.

 Sergey, I have used your .nix file, and it is still breaking make when in
 nix-shell.
 However, when using nix-build, it is working until the point when Thunar.1
 should be generated. I have added docbook_xsl to buildInputs, but it seems
 that it is not in xml catalog.

 xsltproc -nonet
 http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl
 Thunar.xml
 I/O error : Attempt to load network entity
 http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl

 Why is it working for nix-build and not for nix-shell, and how to manage xml
 catalog inside build envirioment?


I've reproduced the xslt situatiuon (upstream error I talked about
earlier was actually my machine's problem). It is a typical 'impurity'
we are trying to eliminate here in NixOS. According to NixOS idea,
build outputs of an expression should depend on it's build inputs
only. Thunar's build system, in contrast, tries to add a new
dependency - the mysterious docbook.xsl taken somewhere from the
Internet. I think, the best solution will be to patch the build
system, for example, provide it with pre-build man pages. I am not
skilled in docbook cooking so I will not post the recipe. But
probably, you don't need the docs for your task. Below is the
expression which is able to build thunar without docs. It simply
removes the docs/ folder from the SUBDIRS list.

For the nix-shell - I don't know for sure. Looks like it still can't
emulate precisely enough nix build environment. The problem lies
somewhere near gcc (AFAIK NixOS uses it's own patched version) and
NIX_CFLAGS_COMPILE environment variable.

Regards,
Sergey

PS

nix-shell --pure thunar.nix  is in fact able to start the 'good'
shell. Typing configurePhase  buildPhase from there allows me to
build my expression.

--

# thunar.nix

let
  pkgs = import nixpkgs {};
  inherit (pkgs) xfce;
  inherit (xfce) thunar;
  stdenv = pkgs.stdenv;
in rec {
  thunarEnv = stdenv.mkDerivation rec {

name = thunar-999;

src = ./.;

buildInputs = with pkgs; [
  pkgconfig intltool
  gtk dbus_glib libstartup_notification libnotify libexif pcre udev
  xfce.exo xfce.libxfce4util xfce.xfconf xfce.xfce4panel
  xfce.xfce4_dev_tools
  git
  gtk_doc
];

configureFlags = [
  --enable-maintainer-mode
  ];

preConfigure = ''
  sed -i '/docs/d' ./Makefile.am
  ./autogen.sh
'';

  };

}
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Re: [Nix-dev] Compiling Thunar from git

[Sergey Mironov]

Probably you need more dependencies. Try adding dbus_glib. See
nixpkgs/pkgs/desktops/xfce/core/thunar.nix for the whole list.
Probably you need all dependencies listed in this file plus
autoreconfHook.


Regards,
Sergey


2014-03-16 23:26 GMT+04:00 Strahinja Popovic stra...@gmail.com:
 Thank you so much, it makes ./configure now.

 Now my problem is when compiling, it terminates with following:

 /nix/store/55cajnd5wbli8vapmwx6ywi3yafld28b-dbus-glib-0.100.2/include/dbus-1.0/dbus/dbus-glib.h:28:30:
 fatal error: dbus/dbus-shared.h: No such file or directory

 Any ideas? How could I see in which package is dbus-shared.h?


 On Sun, Mar 16, 2014 at 6:11 PM, Vladimír Čunát vcu...@gmail.com wrote:

 On 03/16/2014 05:52 PM, Sergey Mironov wrote:

 Try adding [pkgs.autoconf pkgs.automake pkgs.m4] to the buildInputs.


 Maybe try adding autoreconfHook into buildInputs instead. That should add
 the deps and run that reconf phase automatically.

 Vlada



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Re: [Nix-dev] Compiling Thunar from git

[Sergey Mironov]

2014-03-17 16:25 GMT+04:00 Vladimír Čunát vcu...@gmail.com:
 Hi.

 On 03/17/2014 12:55 PM, Strahinja Popovic wrote:
 I have tried all that, it is still not working.
 Like it is not looking at all inside dbus_libs package.
 I have attached thunar.nix and make output.

 OMG, this thunar expression... that's a completely wrong approach.

 You can do it easiest by copying our expression for thunar and doing
 minor changes. You may need to read the basics of nix, e.g. from nix
 manual to manage it, I suppose.

 BTW, is there some significant problem with our Thunar that makes you
 try git?


IMHO the approach is nice in general. I am thinking about automatic
generation of expressions having src set to ./. when I need to build
something from local source. But yes, the initial thunar.nix is
broken. I've tried to fix it, see the new expression below. It still
can't build the thunar, but probably it is because of an upstream
error.

Regards,
Sergey





# thunar.nix

let
  pkgs = import nixpkgs {};
  inherit (pkgs) xfce;
  inherit (xfce) thunar;
  stdenv = pkgs.stdenv;
in rec {
  thunarEnv = stdenv.mkDerivation rec {
name = thunar-env;
version = 1.1.1.1;
src = ./.;

buildInputs = with pkgs; [
  pkgconfig intltool
  gtk dbus_glib libstartup_notification libnotify libexif pcre udev
  xfce.exo xfce.libxfce4util xfce.xfconf xfce.xfce4panel
  xfce.xfce4_dev_tools
  git
  gtk_doc
];

preConfigure = ''
  ./autogen.sh
'';


  };
  preFixup = rm $out/share/icons/hicolor/icon-theme.cache;
}
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Re: [Nix-dev] Compiling Thunar from git

[Sergey Mironov]

Hi!

Maybe, here is what is going on: Existing thunar expression builds
Thunar from a tarball which already has ./configure script. In
contrast, you don't have it in your git-tree so you need more
dependencies to let ./autogen.sh to build it. Try adding
[pkgs.autoconf pkgs.automake pkgs.m4] to the buildInputs.

Regards,
Sergey

2014-03-16 17:01 GMT+04:00 Strahinja Popovic stra...@gmail.com:
 Hi everyone!

 I'm quite green about Nix, but I'm using NixOS few days and I'm quite happy
 for now.
 Anyway, I am trying to compile Thunar from git, to test few changes, and I
 have problem with ./autogen.sh.
 I have attached output of ./autogen.sh. Also I have attached thunar.nix I
 have tried - unsuccessfully - to use with nix-shell.
 I might hack something around this, but I would love to hear how to do this
 the RightWay(tm).
 Of course, any help is appreciated.

 Best,
 Strahinja

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Re: [Nix-dev] Compiling Thunar from git

[Sergey Mironov]

Didn't know about autoreconfHook, thanks!

2014-03-16 21:11 GMT+04:00 Vladimír Čunát vcu...@gmail.com:
 On 03/16/2014 05:52 PM, Sergey Mironov wrote:

 Try adding [pkgs.autoconf pkgs.automake pkgs.m4] to the buildInputs.


 Maybe try adding autoreconfHook into buildInputs instead. That should add
 the deps and run that reconf phase automatically.

 Vlada



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Re: [Nix-dev] Building linux kernle with manual-config.nix

[Sergey Mironov]

Thanks, I understand. I decided to enable the support for modules in
my kernel for now.

Here is a new wiki section regarding the topic:
https://nixos.org/wiki/How_to_tweak_Linux_kernel_config_options

Regards,
Sergey



2014-03-07 13:06 GMT+04:00 Shea Levy s...@shealevy.com:
 Hey Sergey,

 On Fri, Mar 07, 2014 at 12:17:50PM +0400, Sergey Mironov wrote:
 Hi. I am trying to build my own minimalistic kernel with `buildLinux'
 defined in kernel/manual-config.nix. I've written the wrapper
 expression as follows:

 # linuxHandMade.nix
 { stdenv, fetchurl, buildLinux } :

 buildLinux rec {

   version = 3.10.28;

   src = fetchurl {
 url = mirror://kernel/linux/kernel/v3.x/linux-${version}.tar.xz;
 sha256 = 1blzvr3qywi8wxgl28zsn5djwgvw70yh3i6qjh2sz3zk9gnpd6mq;
   };

   configfile = ./linux-config;

   allowImportFromDerivation = true;
 }

 where ./linux-config is the .config I have built manually by unpacking
 kernel sources and doing 'make menuconfig'. Everything was OK until I
 disabled the loadable modules support. The ./linux-config now contains
 # CONFIG_MODULES is not set and kernel/manual-config.nix doesn't
 work. The error is quite obscure:

 $ nix-build econat.nix -A linuxHandMade  --show-trace
 error: while evaluating `callPackageWith' at
 `/home/grwlf/proj/nixpkgs-econat/lib/customisation.nix:95:35':
 while evaluating `makeOverridable' at
 `/home/grwlf/proj/nixpkgs-econat/lib/customisation.nix:56:24':
 while evaluating an anonymous function at
 `/home/grwlf/proj/nixpkgs-econat/econat/apps/kernel.nix:1:1':
 while evaluating an anonymous function at
 `/home/grwlf/proj/nixpkgs-econat/pkgs/os-specific/linux/kernel/manual-config.nix:13:4':
 while evaluating `mkDerivation' at
 `/home/grwlf/proj/nixpkgs-econat/pkgs/stdenv/generic/default.nix:55:24':
 while evaluating `addPassthru' at
 `/home/grwlf/proj/nixpkgs-econat/lib/customisation.nix:100:22':
 while evaluating an anonymous function at
 `/nix/store/mf69pq5r5948h2q4wj4zfx69rn6zcfk4-nix-1.6.1/share/nix/corepkgs/derivation.nix:4:1':
 value is null while a list was expected


 That error is rubbish, and we'll fix that, but currently NixOS is not
 intended to support non-modular kernels. See [1] for where the
 restriction is specified. Lifting that would take only a little bit of
 work, just no one has gotten around to it.

 Cheers,
 Shea

 [1]: 
 https://github.com/NixOS/nixpkgs/blob/6572708d3914a07a1c58f6162b25ee3d695e/nixos/modules/system/boot/kernel.nix#L289

 I think I've already entered the purely-tested areas of Nixos but
 still could anybody give me a clue of what may go wrong?

 Regards,
 Sergey
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Re: [Nix-dev] Building linux kernle with manual-config.nix

[Sergey Mironov]

Just after sending the previous letter I've discovered that setting
outputs to [out] in the manual-config.nix [1] hides the error. Still
I don't know if it works correctly or not.

Regards,
Sergey

[1] - 
https://github.com/NixOS/nixpkgs/blob/master/pkgs/os-specific/linux/kernel/manual-config.nix#L77


2014-03-07 12:17 GMT+04:00 Sergey Mironov grr...@gmail.com:
 Hi. I am trying to build my own minimalistic kernel with `buildLinux'
 defined in kernel/manual-config.nix. I've written the wrapper
 expression as follows:

 # linuxHandMade.nix
 { stdenv, fetchurl, buildLinux } :

 buildLinux rec {

   version = 3.10.28;

   src = fetchurl {
 url = mirror://kernel/linux/kernel/v3.x/linux-${version}.tar.xz;
 sha256 = 1blzvr3qywi8wxgl28zsn5djwgvw70yh3i6qjh2sz3zk9gnpd6mq;
   };

   configfile = ./linux-config;

   allowImportFromDerivation = true;
 }

 where ./linux-config is the .config I have built manually by unpacking
 kernel sources and doing 'make menuconfig'. Everything was OK until I
 disabled the loadable modules support. The ./linux-config now contains
 # CONFIG_MODULES is not set and kernel/manual-config.nix doesn't
 work. The error is quite obscure:

 $ nix-build econat.nix -A linuxHandMade  --show-trace
 error: while evaluating `callPackageWith' at
 `/home/grwlf/proj/nixpkgs-econat/lib/customisation.nix:95:35':
 while evaluating `makeOverridable' at
 `/home/grwlf/proj/nixpkgs-econat/lib/customisation.nix:56:24':
 while evaluating an anonymous function at
 `/home/grwlf/proj/nixpkgs-econat/econat/apps/kernel.nix:1:1':
 while evaluating an anonymous function at
 `/home/grwlf/proj/nixpkgs-econat/pkgs/os-specific/linux/kernel/manual-config.nix:13:4':
 while evaluating `mkDerivation' at
 `/home/grwlf/proj/nixpkgs-econat/pkgs/stdenv/generic/default.nix:55:24':
 while evaluating `addPassthru' at
 `/home/grwlf/proj/nixpkgs-econat/lib/customisation.nix:100:22':
 while evaluating an anonymous function at
 `/nix/store/mf69pq5r5948h2q4wj4zfx69rn6zcfk4-nix-1.6.1/share/nix/corepkgs/derivation.nix:4:1':
 value is null while a list was expected

 I think I've already entered the purely-tested areas of Nixos but
 still could anybody give me a clue of what may go wrong?

 Regards,
 Sergey
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[Nix-dev] [Nix-pkgs] man pages for C functions

[Sergey Mironov]

I've noticed that NixOS doesn't provide man pages for well-known C
functions from it's stdlib. Probably most of the users don't need
them, but I'd prefer to install it on my system. Do we have such an
option? If not, I probably can write a separate expression. What
package does contain them? glibc?

Regards,
Sergey
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Re: [Nix-dev] [Nix-pkgs] man pages for C functions

[Sergey Mironov]

Didn't know about this! Thanks!

2014-02-18 21:05 GMT+04:00 Lluís Batlle i Rossell vi...@viric.name:
 On Tue, Feb 18, 2014 at 08:52:17PM +0400, Sergey Mironov wrote:
 I've noticed that NixOS doesn't provide man pages for well-known C
 functions from it's stdlib. Probably most of the users don't need
 them, but I'd prefer to install it on my system. Do we have such an
 option? If not, I probably can write a separate expression. What
 package does contain them? glibc?

 man-pages.

 http://www.kernel.org/doc/man-pages/
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Re: [Nix-dev] nix-shell NetworkManager

[Sergey Mironov]

2014-02-17 14:38 GMT+04:00 Cillian de Róiste cillian.deroi...@gmail.com:
 Hi,

 I don't know the answer to your question, but just in case you overlooked
 it, your user needs to be a member of the networkmanager group to be able to
 use NetworkManager.

 Cheers,
 Cillian


Yes, I know about this, thanks. My problem is probably closer to [1],
but I don't know how to translate the solution to NixOS. Lools like
policykit has changed it's config format. Also, pkaction shows that my
user has all the org.freedesktop.NetworkManager.* permissions.

Regards,
Sergey


[1] - 
http://jeffhoogland.blogspot.ru/2012/05/howto-give-network-manager-sufficient.html
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Re: [Nix-dev] nix-shell NetworkManager

[Sergey Mironov]

Yes, it pops up the error when I try to connect to protected wifi. My
configuration has nothing special in the area of networking, but I am
using Xfce as a window manager (I guess most of the people use nixos
with KDE). My Nixos tree is forked from

https://github.com/NixOS/nixpkgs/commit/cec700aab058db238176f591e1b919f30da54ce2

Another detail: If I run nm-applet as root, no error is displayed. So
this thing is probably related somehow to the polkit.

Sergey.



2014-02-17 15:18 GMT+04:00 Domen Kožar do...@dev.si:
 Hi Sergey,

 what rev of nixpkgs are you using? Anything special about your
 configuration? I guess this happens when you try to connect on protected
 wifi, right?

 d.


 On Mon, Feb 17, 2014 at 12:15 PM, Sergey Mironov grr...@gmail.com wrote:

 2014-02-17 14:38 GMT+04:00 Cillian de Róiste cillian.deroi...@gmail.com:
  Hi,
 
  I don't know the answer to your question, but just in case you
  overlooked
  it, your user needs to be a member of the networkmanager group to be
  able to
  use NetworkManager.
 
  Cheers,
  Cillian
 

 Yes, I know about this, thanks. My problem is probably closer to [1],
 but I don't know how to translate the solution to NixOS. Lools like
 policykit has changed it's config format. Also, pkaction shows that my
 user has all the org.freedesktop.NetworkManager.* permissions.

 Regards,
 Sergey


 [1] -
 http://jeffhoogland.blogspot.ru/2012/05/howto-give-network-manager-sufficient.html
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Re: [Nix-dev] nix-shell NetworkManager

[Sergey Mironov]

Sorry, irc is not accessible for me at the moment..

id says

[grwlf@greyblade ~ ]$ id
uid=1000(grwlf) gid=100(users)
группы=100(users),1(wheel),57(networkmanager),499(vboxusers)

Regards,
Sergey

2014-02-17 16:42 GMT+04:00 Domen Kožar do...@dev.si:
 what's the output of: $ id

 PS: would be easier to debug this on irc FreeNode #nixos


 On Mon, Feb 17, 2014 at 1:41 PM, Sergey Mironov grr...@gmail.com wrote:

 Yes, it pops up the error when I try to connect to protected wifi. My
 configuration has nothing special in the area of networking, but I am
 using Xfce as a window manager (I guess most of the people use nixos
 with KDE). My Nixos tree is forked from


 https://github.com/NixOS/nixpkgs/commit/cec700aab058db238176f591e1b919f30da54ce2

 Another detail: If I run nm-applet as root, no error is displayed. So
 this thing is probably related somehow to the polkit.

 Sergey.



 2014-02-17 15:18 GMT+04:00 Domen Kožar do...@dev.si:
  Hi Sergey,
 
  what rev of nixpkgs are you using? Anything special about your
  configuration? I guess this happens when you try to connect on protected
  wifi, right?
 
  d.
 
 
  On Mon, Feb 17, 2014 at 12:15 PM, Sergey Mironov grr...@gmail.com
  wrote:
 
  2014-02-17 14:38 GMT+04:00 Cillian de Róiste
  cillian.deroi...@gmail.com:
   Hi,
  
   I don't know the answer to your question, but just in case you
   overlooked
   it, your user needs to be a member of the networkmanager group to be
   able to
   use NetworkManager.
  
   Cheers,
   Cillian
  
 
  Yes, I know about this, thanks. My problem is probably closer to [1],
  but I don't know how to translate the solution to NixOS. Lools like
  policykit has changed it's config format. Also, pkaction shows that my
  user has all the org.freedesktop.NetworkManager.* permissions.
 
  Regards,
  Sergey
 
 
  [1] -
 
  http://jeffhoogland.blogspot.ru/2012/05/howto-give-network-manager-sufficient.html
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Re: [Nix-dev] nix-store -q --references in more details

[Sergey Mironov]

Thanks, it works! I didn't know about strings as well. Small addition:
Its better to execute strings with -a option to really discover all
stings.

Sergey

2014-02-12 15:08 GMT+04:00 Vladimír Čunát vcu...@gmail.com:
 On 02/12/2014 11:32 AM, Eelco Dolstra wrote:

 I use grep -r to find the binaries that contain hash,


 grep -rl is meant, I think

 Thanks for strings, I didn't know that.


 Vlada



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[Nix-dev] nix-shell NetworkManager

[Sergey Mironov]

Hi! I tried debug a nasty NetworkManager (32) insufficient
privileges problem by building my own hacked version of the package.
I called nix-shell and tried to build the sources. Both patchPhase and
configurePhase run without problems, but buildPhase stoppes with an
error saying

/nix/store/k4bh0a5rffwa9xhxfzld1fvr0z628klz-dbus-glib-0.100.2/include/dbus-1.0/dbus/dbus-glib.h:28:30:
fatal error: dbus/dbus-shared.h: No such file or directory


That is strange because nix-shell set the NIX_CFLAGS_COMPILE variable
correctly (it contains
-I/nix/store/k4bh0a5rffwa9xhxfzld1fvr0z628klz-dbus-glib-0.100.2/include
-I/nix/store/mv8dsy1q29ph6hdk6c96f252ww89z27m-dbus-libs-1.6.14/include
among others)

What may go wrong? Who are in charge of reading the NIX_CFLAGS_COMPILE?

Regards,
Sergey
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Re: [Nix-dev] nix-shell NetworkManager

[Sergey Mironov]

2014-02-16 22:44 GMT+04:00 Sergey Mironov grr...@gmail.com:
 Hi! I tried debug a nasty NetworkManager (32) insufficient
 privileges problem by building my own hacked version of the package.
 I called nix-shell and tried to build the sources. Both patchPhase and
 configurePhase run without problems, but buildPhase stoppes with an
 error saying

 /nix/store/k4bh0a5rffwa9xhxfzld1fvr0z628klz-dbus-glib-0.100.2/include/dbus-1.0/dbus/dbus-glib.h:28:30:
 fatal error: dbus/dbus-shared.h: No such file or directory


 That is strange because nix-shell set the NIX_CFLAGS_COMPILE variable
 correctly (it contains
 -I/nix/store/k4bh0a5rffwa9xhxfzld1fvr0z628klz-dbus-glib-0.100.2/include
 -I/nix/store/mv8dsy1q29ph6hdk6c96f252ww89z27m-dbus-libs-1.6.14/include
 among others)

 What may go wrong? Who are in charge of reading the NIX_CFLAGS_COMPILE?

 Regards,
 Sergey

I think I need to clarify my previous letter: In order to hack
NetworkManager, I start nix-shell and then call the pases directly,
like
$ patchPahse
$ configurePhase
$ buildPhase
...
/nix/store/k4bh0a5rffwa9xhxfzld1fvr0z628klz-dbus-glib-0.100.2/include/dbus-1.0/dbus/dbus-glib.h:28:30:
fatal error: dbus/dbus-shared.h: No such file or directory
$ echo $NIX_CFLAGS_COMPILE
-Ithis -Ithat 
-I/nix/store/k4bh0a5rffwa9xhxfzld1fvr0z628klz-dbus-glib-0.100.2/include
...

Regards,
Sergey
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[Nix-dev] nix-store -q --references in more details

[Sergey Mironov]

Hi. I'd like to automatically filter out gcc from my hand-made initrd
image created with make-initrd.nix. The problem is that some packages
depend on gcc package, but we know that they probably need
libgcc_s.so.1 only. So I plan to know is it really true or not.
Unfortunately, `nix-store -q --references ...' prints paths in
`/nix/store/hash-name' format, it doesn't show the tail of the
reference. Is there a method to extract the whole reference strings,
like `/nix/store/hash-name/lib/liblib.so', from a package ? If no,
could you recommend a binary grep tool which may help me to do so?

Regards,
Sergey
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Re: [Nix-dev] boot problem: stage1 repair console doesn't work under VirtualBox

[Sergey Mironov]

I've tried this approach on a real machine, the result is the same.

2014-02-05 Sergey Mironov grr...@gmail.com:
 Hi! Looks like stage1 repair console can't read user input, at least
 under VirtualBox. Here is how to reproduce the problem:
 1. Boot VirtualBox with NixOS minimal installation CD attached
 2. Press 'e' in the grub to edit kernel command line
 3. Add bood.debug1 kernel argument
 4. Boot

 Repair console appears but It doesn't react on key presses. It feels
 like /dev/tty1 hangs while trying to read something (bash 'read'
 operator). Note that system doesn't hang in general, other processes
 continue to work  (I have carried out some experiments with inserting
 ( while true ; do echo -n . ; sleep 1; done)  into stage-1 script)

 Any ideas on how to fix it?

 Regards,
 Sergey
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Re: [Nix-dev] boot problem: stage1 repair console doesn't work under VirtualBox

[Sergey Mironov]

On my real machine I've tried
nixos-minimal-13.10.35608.1e7192a-x86_64-linux.iso from the official
site. In VirtualBox test I used manually built image, sources were
forked from 5898d854da459526ef032db1ad081a6eebbd772d.

Regards,
Sergey

2014-02-05 Lluís Batlle i Rossell vi...@viric.name:
 On Wed, Feb 05, 2014 at 12:00:05PM +0400, Sergey Mironov wrote:
 I've tried this approach on a real machine, the result is the same.

 Does it happen with a master iso image? At some point, we missed the atkbd
 module in stage 1.

 In case of a USB keyboard, something similar may happen.

 2014-02-05 Sergey Mironov grr...@gmail.com:
  Hi! Looks like stage1 repair console can't read user input, at least
  under VirtualBox. Here is how to reproduce the problem:
  1. Boot VirtualBox with NixOS minimal installation CD attached
  2. Press 'e' in the grub to edit kernel command line
  3. Add bood.debug1 kernel argument
  4. Boot
 
  Repair console appears but It doesn't react on key presses. It feels
  like /dev/tty1 hangs while trying to read something (bash 'read'
  operator). Note that system doesn't hang in general, other processes
  continue to work  (I have carried out some experiments with inserting
  ( while true ; do echo -n . ; sleep 1; done)  into stage-1 script)
 
  Any ideas on how to fix it?
 
  Regards,
  Sergey
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Re: [Nix-dev] boot problem: stage1 repair console doesn't work under VirtualBox

[Sergey Mironov]

AFAIK, there is a fail call in the initrd's ./stage1.sh which sits
before module loading [1]. This means that boot.debug1 will only works
with KEYBOARD_ATKBD y

[1] - 
https://github.com/NixOS/nixpkgs/blob/master/nixos/modules/system/boot/stage-1-init.sh#L125

2014-02-05 Vladimír Čunát vcu...@gmail.com:
 On 02/05/2014 11:34 AM, Sergey Mironov wrote:

  linux_3_10 = pkgs.linux_3_10.override {
  extraConfig = ''
KEYBOARD_ATKBD y
  '';
};


 Adding the module to boot.initrd.kernelModules should work the same without
 rebuilding the kernel, won't it?

 Vlada



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[Nix-dev] Please explain grub installer

[Sergey Mironov]

Hi! I've got a troubles while trying to understand how does
install-grub.pl works (maybe that is because I'm not skilled in perl).

Here is what I am trying to figure out: grub.nix calls
./install-grub.pl with XML parameter list as an argument.

https://github.com/NixOS/nixpkgs/blob/master/nixos/modules/system/boot/loader/grub/grub.nix#L242

From the perl side, ./install-grub.pl reads ARGV[0] and ARGV[1].
ARGV[0] turns out to contain the path to XML. OK. And ARVG[1] contains
a mysterious config. AFAIK it should point to the folder with kernel,
initrd and others. But where does it come from?

Regards,
Sergey
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Re: [Nix-dev] Please explain grub installer

[Sergey Mironov]

Thanks, I understand now.

2014-02-04 Eelco Dolstra eelco.dols...@logicblox.com:
 Hi,

 On 04/02/14 12:04, Sergey Mironov wrote:

 Hi! I've got a troubles while trying to understand how does
 install-grub.pl works (maybe that is because I'm not skilled in perl).

 Here is what I am trying to figure out: grub.nix calls
 ./install-grub.pl with XML parameter list as an argument.

 https://github.com/NixOS/nixpkgs/blob/master/nixos/modules/system/boot/loader/grub/grub.nix#L242

From the perl side, ./install-grub.pl reads ARGV[0] and ARGV[1].
 ARGV[0] turns out to contain the path to XML. OK. And ARVG[1] contains
 a mysterious config. AFAIK it should point to the folder with kernel,
 initrd and others. But where does it come from?

 It's passed from switch-to-configuration.pl:

   # Install or update the bootloader.
   if ($action eq switch || $action eq boot) {
   system(@installBootLoader@ $out) == 0 or exit 1;
   }

 Note that switch-to-configuration.pl is called in turn by nixos-rebuild.

 The string '@installBootLoader@' comes from the option
 system.build.installBootLoader, which is set by grub.nix to (approximately)
 ${pkgs.perl}/bin/perl ${./install-grub.pl} ${grubConfig}, where 
 ${grubConfig}
 is the XML file.

 --
 Eelco Dolstra | LogicBlox, Inc. | http://nixos.org/~eelco/
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[Nix-dev] boot problem: stage1 repair console doesn't work under VirtualBox

[Sergey Mironov]

Hi! Looks like stage1 repair console can't read user input, at least
under VirtualBox. Here is how to reproduce the problem:
1. Boot VirtualBox with NixOS minimal installation CD attached
2. Press 'e' in the grub to edit kernel command line
3. Add bood.debug1 kernel argument
4. Boot

Repair console appears but It doesn't react on key presses. It feels
like /dev/tty1 hangs while trying to read something (bash 'read'
operator). Note that system doesn't hang in general, other processes
continue to work  (I have carried out some experiments with inserting
( while true ; do echo -n . ; sleep 1; done)  into stage-1 script)

Any ideas on how to fix it?

Regards,
Sergey
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[Nix-dev] (Cross-)Building a custom installation CD

[Sergey Mironov]

Hi. I need to create a custom installation CD to be able to install a
very minimalistic Linux system to a target device (an x86 server with
known set of hardware). Target OS should contain no multy-user
support, no plug-and-play and even no package manager. It's task is to
run one and only application, the mainapp. I suppose that main
installation script may be as simple as

installScript = ''
  # format the hard disk
  fdisk /dev/sda

  # Mount the root partition
  mount /dev/sda1 /mnt

  # install everything
  for p in ${linuxKernel} ${busybox} ${mainapp} /* etc */ ; do
cp -r $p /mnt
  done
  ..
  # generate the inittab which runs mainapp
  ..
  grub /dev/sda
'';

Unfortunately, there is a complication: target device and developer
machines have different architectures (x86 via x86-64), plus we need a
custom (patched) gcc in order to build the mainapp. Ideally, I'd like
to cross-build the entire CD on the developer machines.

AFAIK, 'official' way of creating the installation CD is declared in
nixpkgs/nixos/modules/installer/cd-dvd/* rules. But I can't see a
connection between nixos and cross-build facilities described in [1].
Is it possible to provide nixpkgs/nixos with a different,
cross-compiled set of derivations to make it possible to configure
system as usual, but obtain an cross-built image as a result?


[1] - https://nixos.org/wiki/CrossCompiling

Regards,
Sergey
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[Nix-dev] curl SSL question

[Sergey Mironov]

Hi. A questions to curl experts. I'm working with application which
uses libcurl to send https:// requests. For the security reasons
application enables both SSL_VERIFY* options

  curl_easy_setopt(c, CURLOPT_SSL_VERIFYPEER, 1);
  curl_easy_setopt(c, CURLOPT_SSL_VERIFYHOST, 2);

Unfortunately, curl refuses to start a conversation and errors out the
following:

* About to connect() to verifier.login.persona.org port 443 (#0)
*   Trying 107.23.187.236...
* Adding handle: conn: 0x7f3714066e40
* Adding handle: send: 0
* Adding handle: recv: 0
* Curl_addHandleToPipeline: length: 1
* - Conn 0 (0x7f3714066e40) send_pipe: 1, recv_pipe: 0
* Connected to verifier.login.persona.org (107.23.187.236) port 443 (#0)
* SSL certificate problem: unable to get local issuer certificate
* Closing connection 0


I looked into nix expression for curl and add
--with-ca-bundle=${cacert}/etc/ca-bundle.crt flag (see the commit
https://github.com/grwlf/nixpkgs/commit/a514f952d78420412442ed38ab7fa6a705eb26fe).
Unfortunately, nixos reports circular dependency conflict between curl
and cacert (because cacert uses curl to download the ca-bundle from
curl's website). So I also made a new version of curl named
`curl_cacert' which solved my issue.

The questions are:
  - does anybody (except me) try sending https requests with libcurl?
How does it supposed to contact with ca-bundle.crt?
  - Is this an openssl-specific problem? Does anybody try it with gnutls?
  - Should we fix it? I think I can write the expression for tinycurl,
call it from cacert and then call cacert from 'normal' curl.

Regards,
Sergey
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Re: [Nix-dev] curl SSL question

[Sergey Mironov]

 How does it supposed to contact with ca-bundle.crt?

 env var CURL_CA_BUNDLE

   - Is this an openssl-specific problem? Does anybody try it with gnutls?

 It's a CURL thing. :)

Wait, but I have this variable set (and probably I had it set at the
time of test failures). OK, I probably should re-check the environment
filters of my libcurl application. Thanks!
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Re: [Nix-dev] A generic wrapper method (possibly)

[Sergey Mironov]

Hi! Plus one from here. I also notice '.myapp-wrappers' while
alt-tab-switching tasks and it is not good for the endusers.

A note about binary programs. May we say that applying a wrapper
breaks only applications with interpreters (like python, shell, perl)
and does not affects binary applications? Looks like no, since binary
apps may also read their argv[0] and make decisions. What may be done
in such cases? Crazy idea - patch the libc and make it support
something like FORCE_ARGV0 variable? Sounds dangerously and fixes one
aspect but there may be others. Luckily, looks like binaries rarely
depends on their names  so we probably may ignore the problem like we
do now and fix things locally on demand.

Regards,
Sergey

2013/12/2 Alex Berg chex...@gmail.com:
 I am interested in this topic. I don't completely understand the problem
 here, but maybe I can help by discussing it.

 The motivation for the addition of runtimeInputs is primarily to support
 language interpreters and their libraries?

 I really don't like to use wrapper, this term. I feel that it's a term
 used when the problem isn't well understood and the solution is lazily
 designed. If we can rewrite this concept using an attribute which has a
 better name, this would definitely be a good change.

 First, I would like to better understand the concept. How do you want to use
 these runtimeInputs? You want to add them to an environment variable, such
 as PATH, and keep this value after the build environment closes? Or you
 want to modify the interpreter's package by adding symlinks to this
 buildInputs packages?

 Currently, buildInputs packages are built before the package, and their
 bin, lib, and include directories are added to certain environment
 variables so other tools can find them, but only during the build. Am I
 wrong, or does it do other important things? (If there's documentation that
 fully explains the effects of adding a package to this attribute, please
 link me.)

 Also, I remember that propagatedBuildInputs also exists. I don't
 understand its exact purpose, but I believe it shares environment variables
 between dependencies, from child to parent packages. Is runtimeInputs
 similar?




 On Sun, Dec 1, 2013 at 5:12 AM, Bjørn Forsman bjorn.fors...@gmail.com
 wrote:

 Hi all,

 For a long time I've been annoyed by the side effects of wrapping
 programs. Now I want to fix it.

 Wrapping programs makes the help text (very often) ugly: usage:
 .prog-wrapped some-option instead of usage: prog some-option.
 Whenever I see such help texts I cannot help but think that our
 current solution is very hacky. But the most important side effect is
 that some programs actually break when wrapped, because their argv[0]
 is different than it normally is; it has gotten a '.' in front and
 '-wrapped' at the end. I've seen this breakage in dblatex (IIRC) and
 munin (100% sure).

 What can we do about it?

 Peter Simons recently rewrote the python wrapper so that the python
 interpreter itself finds its dependencies instead of having to going
 through a different shell script that sets PYTHONPATH for it. (Well
 actually, there is a shell script involved, but it's different.)

 I have this idea that we can do a similar thing for other interpreters
 like sh, perl etc. My goal is to have wrapped interpreters instead
 of the current wrapper scripts around programs that use plain
 interpreters. (Of course, I don't think that we can stop using
 wrapProgram alltogether, but the common stuff I think we can make
 better.)

 I envision the end result to be something like this:

 stdenv.mkDerivation {
   name = foo-0.1;
   ...
   buildInputs = [ python pythonPackages.jedi ];
   runtimeInputs = [ python pythonPackages.jedi ];
   ...
 }

 (The use of python above is arbitrary. You could for instance replace
 it with bash + some deps that should be found in PATH.)

 The above derivation, when built, would construct a wrapped instance
 of the python interpreter which knows where to find the jedi package.
 And this interpreter would be used in the patchShebangs function.
 Automatically.

 What do you think? Does this sound like a good idea?

 As a start I've made a bash-wrapper (basically a copy of the python
 wrapper.nix file) to try fixing the munin package plugins. I'm now
 pondering how to to implement the runtimeInputs functionality. I
 imagine that the stdenv builder would have to be extended with hooks
 so that if bash in runtimeInputs then build bash-wrapper and if
 python in runtimeInputs then build python-wrapper. And patchShebangs
 must have these wrapped interpreters first in PATH.

 But this is where it stops for me. I have no idea how to implement if
 bash in runtimeInputs then build bash-wrapper and put that wrapper
 first in PATH. Any hints appreciated.

 Also if anyone thinks this runtimeInputs thing is a bad idea, please
 say so. And explain why :-)

 Best regards,
 Bjørn Forsman
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Re: [Nix-dev] Nixpkgs-monitor. New milestone: patches

[Sergey Mironov]

2013/11/28 Vladimír Čunát vcu...@gmail.com:
 On 11/28/2013 08:57 AM, Sergey Mironov wrote:

 Hi! Could you please repost the link to the nixpkgs-monitor?


 https://vdmvtkitqc3grub6.onion.to/
 How can you not remember it :-D

Awesome! But.

Tor2web Error: Generic Socks Error

A typo, maybe? ;)

Sergey
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