Rework withExtensions / buildEnv to handle currently enabled
extensions better and make them compatible with override. They now
accept a function with the named arguments enabled and all, where
enabled is a list of currently enabled extensions and all is the set
of all extensions. This gives us several nice properties:
- You always get the right version of the list of currently enabled
extensions
- Invocations chain
- It works well with overridden PHP packages - you always get the
correct versions of extensions
As a contrived example of what's possible, you can add ImageMagick,
then override the version and disable fpm, then disable cgi, and
lastly remove the zip extension like this:
{ pkgs ? (import <nixpkgs>) {} }:
with pkgs;
let
phpWithImagick = php74.withExtensions ({ all, enabled }: enabled ++ [ all.imagick ]);
phpWithImagickWithoutFpm743 = phpWithImagick.override {
version = "7.4.3";
sha256 = "wVF7pJV4+y3MZMc6Ptx21PxQfEp6xjmYFYTMfTtMbRQ=";
fpmSupport = false;
};
phpWithImagickWithoutFpmZip743 = phpWithImagickWithoutFpm743.withExtensions (
{ enabled, all }:
lib.filter (e: e != all.zip) enabled);
phpWithImagickWithoutFpmZipCgi743 = phpWithImagickWithoutFpmZip743.override {
cgiSupport = false;
};
in
phpWithImagickWithoutFpmZipCgi743
The php installer creates a random one, but we bypass it, so we have
to create one ourselves.
This should be backward compatible as encryption is used for session
cookies only: users at the time of the upgrade will be logged out but
nothing more.
259b7fa065/config/config.inc.php.sample (L73)
If the database is local, use postgres peer authentication.
Otherwise, use a password file.
Leave database initialisation to postgresql.ensure*.
Leave /var/lib/roundcube creation to systemd.
Run php upgrade script as unpriviledged user.
When using a different database, the evaluation fails as
`config.services.postgresql.package` is only set if `services.postgresql` is enabled.
Also, the systemd service shouldn't have a relation to postgres if a
remote database is used.
With this option it's possible to specify a custom expression for
`roundcube`, i.e. a roundcube environment with third-party plugins as
shown in the testcase.
