nixpkgs/doc/builders/packages/weechat.section.md
slotThe 2c529c3cb8 Link to Libera, Matrix instead of Freenode
The project has moved away from Freenode as an IRC network[1], and there
is now a quite large channel on Libera.  As such, we should point users
towards that instead.

This also changes all examples to refer to libera instead of freenode
as, with the recent deletion of all freenode channels, it is perhaps
where most communities are to be found nowadays.

Finally, also link to the official Matrix room[2] as an alternative to
IRC.

Related: https://github.com/NixOS/nixpkgs/pull/129384

[1]: https://discourse.nixos.org/t/join-us-on-matrix-at-nix-nixos-org-migrating-from-freenode
[2]: https://github.com/NixOS/rfcs/pull/94
2021-07-06 16:35:37 +02:00

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# Weechat {#sec-weechat}
Weechat can be configured to include your choice of plugins, reducing its closure size from the default configuration which includes all available plugins. To make use of this functionality, install an expression that overrides its configuration such as
```nix
weechat.override {configure = {availablePlugins, ...}: {
plugins = with availablePlugins; [ python perl ];
}
}
```
If the `configure` function returns an attrset without the `plugins` attribute, `availablePlugins` will be used automatically.
The plugins currently available are `python`, `perl`, `ruby`, `guile`, `tcl` and `lua`.
The python and perl plugins allows the addition of extra libraries. For instance, the `inotify.py` script in `weechat-scripts` requires D-Bus or libnotify, and the `fish.py` script requires `pycrypto`. To use these scripts, use the plugin's `withPackages` attribute:
```nix
weechat.override { configure = {availablePlugins, ...}: {
plugins = with availablePlugins; [
(python.withPackages (ps: with ps; [ pycrypto python-dbus ]))
];
};
}
```
In order to also keep all default plugins installed, it is possible to use the following method:
```nix
weechat.override { configure = { availablePlugins, ... }: {
plugins = builtins.attrValues (availablePlugins // {
python = availablePlugins.python.withPackages (ps: with ps; [ pycrypto python-dbus ]);
});
}; }
```
WeeChat allows to set defaults on startup using the `--run-command`. The `configure` method can be used to pass commands to the program:
```nix
weechat.override {
configure = { availablePlugins, ... }: {
init = ''
/set foo bar
/server add libera irc.libera.chat
'';
};
}
```
Further values can be added to the list of commands when running `weechat --run-command "your-commands"`.
Additionally it's possible to specify scripts to be loaded when starting `weechat`. These will be loaded before the commands from `init`:
```nix
weechat.override {
configure = { availablePlugins, ... }: {
scripts = with pkgs.weechatScripts; [
weechat-xmpp weechat-matrix-bridge wee-slack
];
init = ''
/set plugins.var.python.jabber.key "val"
'':
};
}
```
In `nixpkgs` there's a subpackage which contains derivations for WeeChat scripts. Such derivations expect a `passthru.scripts` attribute which contains a list of all scripts inside the store path. Furthermore all scripts have to live in `$out/share`. An exemplary derivation looks like this:
```nix
{ stdenv, fetchurl }:
stdenv.mkDerivation {
name = "exemplary-weechat-script";
src = fetchurl {
url = "https://scripts.tld/your-scripts.tar.gz";
sha256 = "...";
};
passthru.scripts = [ "foo.py" "bar.lua" ];
installPhase = ''
mkdir $out/share
cp foo.py $out/share
cp bar.lua $out/share
'';
}
```