[Nix-dev] Custom php.ini for cli calls

[Guillaume Maudoux (Layus)]

Hi,

I found a hint on StackOverflow[1], which outlines that php is not the
product of a makeDerivation, but instead is a composableDerivation.
More info on these strange beasts can be found in the source itself[2],
with php being explicitly cited as an exception.
Once you know it, you notice it at the top of php/default.nix :-).

Basically, |overrideDerivation| is not available for php; instead you
have the choice between |merge| and |replace|

This works for me :

|# In .nixpkgs/config.nix : packageOverrides = pkgs: with pkgs; rec {
php70 = pkgs.php70.merge (oldAttrs: { installPhase = '' # use the old
installPhase if need be ${oldAttrs.installPhase} # Add custom stuff echo
"Strange option" >> $iniFile ''; }); }; |

[1]
http://stackoverflow.com/questions/23660797/nix-composable-derivation-options
[2]
https://github.com/NixOS/nixpkgs/blob/master/lib/composable-derivation.nix

Le 04/02/16 15:52, 4levels a écrit :

> Hi Nix Devs,
>
> I'm trying to increase the memory_limit settings for php cli calls.
> For the phpfpm calls I've managed (a few months ago) to append my
> custom options to the php.ini file as the phpfpm service has an option
> to do so.
> However, for php cli calls, the memory_limit value is usually set to
> unlimited, but not with the default config in the nix package: it has
> a value of 128M (instead of the expected -1).  
>
> In the php/default.nix I can see that the ini file is generated in the
> installPhase, but I'm failing to override this.
>
> Do you have any suggestions on how to achieve this?
>
>
> Kind regards,
>
> Erik
>
> Working phpfpm custom ini snippet:
>
> # Custom PHP ini file for apc / memcached
> services.phpfpm.phpIni = pkgs.runCommand "php.ini" {
>   options = ''
>     date.timezone = Europe/Brussels
>     extension = "${pkgs.phpPackages.apcu}/lib/php/extensions/apcu.so"
>     max_execution_time = 30
>     post_max_size = 100M
>     upload_max_size = 100M
>     upload_max_filesize = 20M
>     memory_limit = 256M
>     apc.enable = 1
>   '';
> }
> ''
>   cat ${pkgs.php}/etc/php-recommended.ini > $out
>   echo "$options" >> $out
> '';
>
>
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