[Nix-dev] Turn on python3 support for vim in configuration.nix

[Pavel Chuprikov]

This is just a dependency among the vim configure flags. Basically, if you
use only *tiny* set of features then it won't be enough to support *python *or
*ruby*, for example.

To try *tiny* you need to add:

vim.python = false;
vim.ruby = false;

to your* configuration.nix*.

--
Pavel

сб, 17 сент. 2016 г. в 17:53, Wink Saville <wink at saville.com>:

> On Sat, Sep 17, 2016 at 4:23 AM, Pavel Chuprikov <pschuprikov at gmail.com>
> wrote:
> > Hi Wink,
> >
> > There are two features that vim can support: python and python3. To
> > determine which one should be turned on vim's nix-expression checks the
> > version of a python package that was passed to it. To enable python3 you
> > need to override vimHugeX:
> >
> > environment = {
> >   systemPackages = with pkgs; [
> >     vimHugeX.override { python = python3; }
> >   ];
> > }
>
> Thanks, it needed one minor tweak, it need parens around the
> '(vimHugeX.override {..})':
>
> environment = {
>   systemPackages = with pkgs; [
>     (vimHugeX.override { python = python3; })
>   ];
> }
>
> Out of curiosity, I tried to change the features to "tiny":
> environment = {
>   systemPackages = with pkgs; [
>     (vimHugeX.override { features = "tiny" })
>   ];
> }
>
> But rebuild gives an error that python isn't supported:
>
>      configure: error: cannot use Python with tiny or small features
>
> I looked in pkgs/**/editors/vim/configurable.nix and can see various
> places python is mentioned but I'm not familiar enough with the
> nix language to ferret out how to disable it. Do you happen to know?
>
>
> > --
> > Pavel
> >
> >
> >
> > сб, 17 сент. 2016 г. в 0:18, Wink Saville <wink at saville.com>:
> >>
> >> By default vim installed via configuration.nix doesn't support python3:
> >>
> >> environment = {
> >>   systemPackages = with pkgs; [
> >>     vim
> >>   ];
> >> }
> >>
> >> $ sudo nixos-rebuild test
> >> $ vim --version | grep python3
> >> ... -python3 ...
> >>
> >> So after much searching and help from #nixos on freenode I found that
> >> you can add vim_configurable or its alias vimHugeX to turn on a bunch
> >> of options such as clipboard and python but it doesn't turn on
> >> python3:
> >>
> >> environment = {
> >>   systemPackages = with pkgs; [
> >>     vimHugeX
> >>   ];
> >> }
> >>
> >> $ sudo nixos-rebuild test
> >> $ vim --version | grep 'python3\|clipboard'
> >> +clipboard       +iconv           +path_extra      +toolbar
> >> +cscope          +lispindent      -python3         +vreplace
> >> +eval            +mouse_dec       +startuptime     +xterm_clipboard
> >>
> >>
> >> This post, https://goo.gl/Bej4Qo, implies you can do it and I added
> >> 'nixpkgs.config.vim.python3 = true' but it doesn't work:
> >>
> >>   nixpkgs.config = {
> >>     allowUnfree = true;
> >>     vim.python3 = true;
> >>   };
> >>
> >> environment = {
> >>   systemPackages = with pkgs; [
> >>     vimHugeX
> >>   ];
> >> }
> >>
> >> $ sudo nixos-rebuild test
> >> $ vim --version | grep 'python3\|clipboard'
> >> +clipboard       +iconv           +path_extra      +toolbar
> >> +cscope          +lispindent      -python3         +vreplace
> >> +eval            +mouse_dec       +startuptime     +xterm_clipboard
> >>
> >>
> >> How how can I turn on python3, i.e. control individual vim
> >> options/features, in configuration.nix?
> >>
> >> -- wink
> >> _______________________________________________
> >> nix-dev mailing list
> >> nix-dev at lists.science.uu.nl
> >> http://lists.science.uu.nl/mailman/listinfo/nix-dev
>
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