[Nix-dev] newbie question: Which name is used for eclipse-sdk-4.4 in /etc/nixos/configuration.nix
Hi everybody
Thanks to lwn pointing me to NixOS I decided to test drive using VirtualBox. I
was quite impressed how much was available and how smooth my experience has
been.
I am puzzleed that runnig
nix-env -i eclipse-sdk-4.4
works fine, but I was unable to add it /etc/nixos/configuration.nix with lines
like
{
environment.systemPackages =
[ pkgs.eclipse-sdk-4.4
]
}
failed.
Similarly I was surprised that nix-env -i kdepim needed a item called
pkgs.kde4.kdepim in /etc/nixos/configuration.nix.
Could anybody point give me an explanation or point me to where I find one for
this behaviour? I did not find one under https://nixos.org/wiki/FAQ,
http://nixos.org/nix/manual/ nor http://nixos.org/nixpkgs/manual/.
Best regards
Niklaus
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Re: [Nix-dev] newbie question: Which name is used for eclipse-sdk-4.4 in /etc/nixos/configuration.nix
(Unfortunately I don't know a good reference to point to for a description of this.) https://nixos.org/wiki/Howto_find_a_package_in_NixOS Marc Weber ___ nix-dev mailing list nix-dev@lists.science.uu.nl http://lists.science.uu.nl/mailman/listinfo/nix-dev
Re: [Nix-dev] newbie question: Which name is used for eclipse-sdk-4.4 in /etc/nixos/configuration.nix
Hi Bjørn
Thanks a lot for your clear explanation!
Best regards
Niklaus
Am Dienstag, 6. Januar 2015, 22.12:55 schrieb Bjørn Forsman:
On 6 January 2015 at 21:29, Niklaus Giger niklaus.gi...@member.fsf.org
wrote:
Hi everybody
Thanks to lwn pointing me to NixOS I decided to test drive using
VirtualBox. I was quite impressed how much was available and how smooth
my experience has been.
Great!
I am puzzleed that runnig
nix-env -i eclipse-sdk-4.4
works fine, but I was unable to add it /etc/nixos/configuration.nix with
lines like
{
environment.systemPackages =
[ pkgs.eclipse-sdk-4.4
]
}
failed.
Similarly I was surprised that nix-env -i kdepim needed a item called
pkgs.kde4.kdepim in /etc/nixos/configuration.nix.
Could anybody point give me an explanation or point me to where I find one
for this behaviour? I did not find one under https://nixos.org/wiki/FAQ,
http://nixos.org/nix/manual/ nor http://nixos.org/nixpkgs/manual/.
It's due to the fact that packages can be installed by attribute
name or package name. nix-env -i installs by package name, nix-env
-iA and environment.systemPackages installs by attribute name.
(Unfortunately I don't know a good reference to point to for a
description of this.)
A comment above the environment.systemPackages line, in the
configuration.nix template created during installation, should at
least give you an example command for finding packages: nix-env -qaP
| grep wget
In general, we try to keep the package attribute equal to the package
name. Not so long ago, nix didn't support dashes in attribute names
(it confliced with the 'subtraction' operator), so there are packages
still using attribute names with camelCase or underscore instead of
dash.
Also, some packages are grouped under container attributes, like you
saw above (kde4).
Just use nix-env -qaP | grep wget and you'll be OK.
Best regards,
Bjørn Forsman
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Re: [Nix-dev] newbie question: Which name is used for eclipse-sdk-4.4 in /etc/nixos/configuration.nix
On 6 January 2015 at 21:29, Niklaus Giger niklaus.gi...@member.fsf.org wrote:
Hi everybody
Thanks to lwn pointing me to NixOS I decided to test drive using VirtualBox. I
was quite impressed how much was available and how smooth my experience has
been.
Great!
I am puzzleed that runnig
nix-env -i eclipse-sdk-4.4
works fine, but I was unable to add it /etc/nixos/configuration.nix with lines
like
{
environment.systemPackages =
[ pkgs.eclipse-sdk-4.4
]
}
failed.
Similarly I was surprised that nix-env -i kdepim needed a item called
pkgs.kde4.kdepim in /etc/nixos/configuration.nix.
Could anybody point give me an explanation or point me to where I find one for
this behaviour? I did not find one under https://nixos.org/wiki/FAQ,
http://nixos.org/nix/manual/ nor http://nixos.org/nixpkgs/manual/.
It's due to the fact that packages can be installed by attribute
name or package name. nix-env -i installs by package name, nix-env
-iA and environment.systemPackages installs by attribute name.
(Unfortunately I don't know a good reference to point to for a
description of this.)
A comment above the environment.systemPackages line, in the
configuration.nix template created during installation, should at
least give you an example command for finding packages: nix-env -qaP
| grep wget
In general, we try to keep the package attribute equal to the package
name. Not so long ago, nix didn't support dashes in attribute names
(it confliced with the 'subtraction' operator), so there are packages
still using attribute names with camelCase or underscore instead of
dash.
Also, some packages are grouped under container attributes, like you
saw above (kde4).
Just use nix-env -qaP | grep wget and you'll be OK.
Best regards,
Bjørn Forsman
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nix-dev mailing list
nix-dev@lists.science.uu.nl
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Re: [Nix-dev] newbie question: Which name is used for eclipse-sdk-4.4 in /etc/nixos/configuration.nix
On 7 January 2015 at 00:27, Marc Weber marco-owe...@gmx.de wrote: (Unfortunately I don't know a good reference to point to for a description of this.) https://nixos.org/wiki/Howto_find_a_package_in_NixOS Thanks. I think it would be a good idea to move some of that into the nixos manual. Maybe extend http://nixos.org/nixos/manual/sec-package-management.html with a few lines? - Bjørn ___ nix-dev mailing list nix-dev@lists.science.uu.nl http://lists.science.uu.nl/mailman/listinfo/nix-dev
