[Nix-dev] Override php xslSupport config option

[4levels]

Hi all,

seems like

    nixpkgs.config.php.xsl = true;

is all I needed to add to my NixOps deploy expression.. great!
This triggered the download of the php sources (as well as libxslt) and PHP
is being built with xsl support..

I knew I was overlooking something obvious ;-)

Kind regards,

Erik

On Tue, Nov 1, 2016 at 4:22 PM 4levels <4levels at gmail.com> wrote:

> Hi all,
>
> I tried the other way as mentioned in the Wiki as follows:
>
>     nixpkgs.config.packageOverrides = pkgs: rec {
>       php56 = pkgs.stdenv.lib.overrideDerivation pkgs.php56 (oldAttrs: {
>         cfg.xslSupport = true;
>       });
>     };
>
> But this results in *error: cannot coerce a set to a string* in the php
> default.nix file on line 18, which is the line where the version is
> specified.  I'm clearly missing something obvious here (again) so still no
> luck.
>
> Thanks for your support!
>
> Erik
>
> On Tue, Nov 1, 2016 at 2:35 PM 4levels <4levels at gmail.com> wrote:
>
> Hi all,
>
> I've managed to at least fix the build errors by adding the following
> (after reading the Wiki on package overrides here
> https://nixos.org/wiki/Nix_Modifying_Packages#Overriding_Existing_Packages
>
> So the nixops deploy command succeeds, but unfortunately still no xsl
> support in PHP
>
> I currently have the following:
>
>     nixpkgs.config.packageOverrides = pkgs: rec {
>       php56 = pkgs.php56.override {
>         config = {
>           xslSupport = true;
>         };
>       };
>     };
>
>
>
> On Tue, Nov 1, 2016 at 2:21 PM 4levels <4levels at gmail.com> wrote:
>
> Hi Devs,
>
> thanks for the info!
> However I'm struggling to get this in my NixOps config, my expression
> keeps failing as I'm probably doing it all wrong since I have no experience
> with packageOverrides.
>
> Can you provide an example (or link to one) where I can see this mechanism
> work?
>
> This is what I currently have (excerpt):
>
>     environment.systemPackages = with pkgs; [
>       wget
>       unzip
>       gitMinimal
>       tmux
>       mariadb
>       php56
>       duplicity
>       nodejs
>       redis
>       php56Packages.apcu
>       php56Packages.composer
>       php56Packages.redis
>       certbot
>       sysstat
>       iotop
>     ];
>
>     nixpkgs.config.packageOverrides = php56:
>       php56.merge {
>         cfg = {
>           xslSupport = true;
>         };
>       };
>     }
>
>
> On Sun, Oct 30, 2016 at 8:06 PM Jookia <166291 at gmail.com> wrote:
>
> On Sun, Oct 30, 2016 at 09:59:20PM +0300, Игорь Пашев wrote:
> > Something like this:
> >
> > { php70 }: php70.merge {
> >   cfg = {
> >     apxs2Support = false;
> >     ldapSupport = false;
> >     mssqlSupport = false;
> >     pdo_pgsqlSupport = false;
> >     postgresqlSupport = false;
> >     sqliteSupport = false;
> >     xslSupport = false;
> >   };
> > }
> >
> > Use this with nixpkgs.config.packageOverrides
>
> It's really obscure how to use these old-timey .merge{} operations. Maybe
> it
> should be documented somewhere or finally replaced with proper overrides?
>
>
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