forked from mirrors/nixpkgs
a8efe61412
This aims to make the `weechat` package even more configurable. It
allows to specify scripts and commands using the `configure` function
inside a `weechat.override` expression.
The package can be configured like this:
```
with import <nixpkgs> { };
weechat.override {
plugins = { availablePlugins, ... }: {
plugins = builtins.attrValues availablePlugins;
init = ''
/set foo bar
/server add freenode chat.freenode.org
'';
scripts = [ "/path/to/script.py" ];
};
}
```
All commands are passed to `weechat --run-command "/set foo bar;/server ..."`.
The `plugins' attribute is not necessarily required anymore, if it's
sufficient to add `init' commands, the `plugins' will be
`builtins.attrValues availablePlugins' by default.
Additionally the result contains `weechat` and `weechat-headless`
(introduced in WeeChat 2.1) now.
818 lines
29 KiB
XML
818 lines
29 KiB
XML
<chapter xmlns="http://docbook.org/ns/docbook"
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xmlns:xlink="http://www.w3.org/1999/xlink"
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||
xml:id="chap-package-notes">
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||
<title>Package Notes</title>
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||
<para>
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This chapter contains information about how to use and maintain the Nix
|
||
expressions for a number of specific packages, such as the Linux kernel or
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X.org.
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||
</para>
|
||
<!--============================================================-->
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<section xml:id="sec-linux-kernel">
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<title>Linux kernel</title>
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||
|
||
<para>
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||
The Nix expressions to build the Linux kernel are in
|
||
<link
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xlink:href="https://github.com/NixOS/nixpkgs/blob/master/pkgs/os-specific/linux/kernel"><filename>pkgs/os-specific/linux/kernel</filename></link>.
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||
</para>
|
||
|
||
<para>
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||
The function that builds the kernel has an argument
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<varname>kernelPatches</varname> which should be a list of <literal>{name,
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patch, extraConfig}</literal> attribute sets, where <varname>name</varname>
|
||
is the name of the patch (which is included in the kernel’s
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<varname>meta.description</varname> attribute), <varname>patch</varname> is
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||
the patch itself (possibly compressed), and <varname>extraConfig</varname>
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(optional) is a string specifying extra options to be concatenated to the
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kernel configuration file (<filename>.config</filename>).
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</para>
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|
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<para>
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The kernel derivation exports an attribute <varname>features</varname>
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specifying whether optional functionality is or isn’t enabled. This is
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used in NixOS to implement kernel-specific behaviour. For instance, if the
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kernel has the <varname>iwlwifi</varname> feature (i.e. has built-in support
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for Intel wireless chipsets), then NixOS doesn’t have to build the
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external <varname>iwlwifi</varname> package:
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<programlisting>
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modulesTree = [kernel]
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++ pkgs.lib.optional (!kernel.features ? iwlwifi) kernelPackages.iwlwifi
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++ ...;
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</programlisting>
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</para>
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<para>
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How to add a new (major) version of the Linux kernel to Nixpkgs:
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<orderedlist>
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<listitem>
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<para>
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Copy the old Nix expression (e.g. <filename>linux-2.6.21.nix</filename>)
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to the new one (e.g. <filename>linux-2.6.22.nix</filename>) and update
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it.
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</para>
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</listitem>
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<listitem>
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<para>
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Add the new kernel to <filename>all-packages.nix</filename> (e.g., create
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an attribute <varname>kernel_2_6_22</varname>).
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</para>
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</listitem>
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<listitem>
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<para>
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Now we’re going to update the kernel configuration. First unpack the
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kernel. Then for each supported platform (<literal>i686</literal>,
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<literal>x86_64</literal>, <literal>uml</literal>) do the following:
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<orderedlist>
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<listitem>
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<para>
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Make an copy from the old config (e.g.
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<filename>config-2.6.21-i686-smp</filename>) to the new one (e.g.
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<filename>config-2.6.22-i686-smp</filename>).
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</para>
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</listitem>
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<listitem>
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<para>
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Copy the config file for this platform (e.g.
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<filename>config-2.6.22-i686-smp</filename>) to
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<filename>.config</filename> in the kernel source tree.
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</para>
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</listitem>
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<listitem>
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<para>
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Run <literal>make oldconfig
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ARCH=<replaceable>{i386,x86_64,um}</replaceable></literal> and answer
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all questions. (For the uml configuration, also add
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<literal>SHELL=bash</literal>.) Make sure to keep the configuration
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consistent between platforms (i.e. don’t enable some feature on
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<literal>i686</literal> and disable it on <literal>x86_64</literal>).
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</para>
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</listitem>
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<listitem>
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<para>
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If needed you can also run <literal>make menuconfig</literal>:
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<screen>
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$ nix-env -i ncurses
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$ export NIX_CFLAGS_LINK=-lncurses
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$ make menuconfig ARCH=<replaceable>arch</replaceable></screen>
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</para>
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</listitem>
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<listitem>
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<para>
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Copy <filename>.config</filename> over the new config file (e.g.
|
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<filename>config-2.6.22-i686-smp</filename>).
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</para>
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</listitem>
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</orderedlist>
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</para>
|
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</listitem>
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<listitem>
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<para>
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Test building the kernel: <literal>nix-build -A kernel_2_6_22</literal>.
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If it compiles, ship it! For extra credit, try booting NixOS with it.
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</para>
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</listitem>
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<listitem>
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<para>
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It may be that the new kernel requires updating the external kernel
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modules and kernel-dependent packages listed in the
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<varname>linuxPackagesFor</varname> function in
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<filename>all-packages.nix</filename> (such as the NVIDIA drivers, AUFS,
|
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etc.). If the updated packages aren’t backwards compatible with older
|
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kernels, you may need to keep the older versions around.
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</para>
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</listitem>
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</orderedlist>
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</para>
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</section>
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<!--============================================================-->
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<section xml:id="sec-xorg">
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<title>X.org</title>
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|
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<para>
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||
The Nix expressions for the X.org packages reside in
|
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<filename>pkgs/servers/x11/xorg/default.nix</filename>. This file is
|
||
automatically generated from lists of tarballs in an X.org release. As such
|
||
it should not be modified directly; rather, you should modify the lists, the
|
||
generator script or the file
|
||
<filename>pkgs/servers/x11/xorg/overrides.nix</filename>, in which you can
|
||
override or add to the derivations produced by the generator.
|
||
</para>
|
||
|
||
<para>
|
||
The generator is invoked as follows:
|
||
<screen>
|
||
$ cd pkgs/servers/x11/xorg
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||
$ cat tarballs-7.5.list extra.list old.list \
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||
| perl ./generate-expr-from-tarballs.pl
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</screen>
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For each of the tarballs in the <filename>.list</filename> files, the script
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downloads it, unpacks it, and searches its <filename>configure.ac</filename>
|
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and <filename>*.pc.in</filename> files for dependencies. This information is
|
||
used to generate <filename>default.nix</filename>. The generator caches
|
||
downloaded tarballs between runs. Pay close attention to the <literal>NOT
|
||
FOUND: <replaceable>name</replaceable></literal> messages at the end of the
|
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run, since they may indicate missing dependencies. (Some might be optional
|
||
dependencies, however.)
|
||
</para>
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<para>
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||
A file like <filename>tarballs-7.5.list</filename> contains all tarballs in
|
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a X.org release. It can be generated like this:
|
||
<screen>
|
||
$ export i="mirror://xorg/X11R7.4/src/everything/"
|
||
$ cat $(PRINT_PATH=1 nix-prefetch-url $i | tail -n 1) \
|
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| perl -e 'while (<>) { if (/(href|HREF)="([^"]*.bz2)"/) { print "$ENV{'i'}$2\n"; }; }' \
|
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| sort > tarballs-7.4.list
|
||
</screen>
|
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<filename>extra.list</filename> contains libraries that aren’t part of
|
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X.org proper, but are closely related to it, such as
|
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<literal>libxcb</literal>. <filename>old.list</filename> contains some
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packages that were removed from X.org, but are still needed by some people
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or by other packages (such as <varname>imake</varname>).
|
||
</para>
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||
|
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<para>
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If the expression for a package requires derivation attributes that the
|
||
generator cannot figure out automatically (say, <varname>patches</varname>
|
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or a <varname>postInstall</varname> hook), you should modify
|
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<filename>pkgs/servers/x11/xorg/overrides.nix</filename>.
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</para>
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</section>
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<!--============================================================-->
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<!--
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<section xml:id="sec-package-notes-gnome">
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<title>Gnome</title>
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<para>* Expression is auto-generated</para>
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<para>* How to update</para>
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</section>
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-->
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<!--============================================================-->
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<!--
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<section xml:id="sec-package-notes-gcc">
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<title>GCC</title>
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||
<para>…</para>
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||
</section>
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||
-->
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<!--============================================================-->
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<section xml:id="sec-eclipse">
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<title>Eclipse</title>
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||
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<para>
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The Nix expressions related to the Eclipse platform and IDE are in
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<link xlink:href="https://github.com/NixOS/nixpkgs/blob/master/pkgs/applications/editors/eclipse"><filename>pkgs/applications/editors/eclipse</filename></link>.
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||
</para>
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||
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||
<para>
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||
Nixpkgs provides a number of packages that will install Eclipse in its
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various forms, these range from the bare-bones Eclipse Platform to the more
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||
fully featured Eclipse SDK or Scala-IDE packages and multiple version are
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||
often available. It is possible to list available Eclipse packages by
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||
issuing the command:
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||
<screen>
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||
$ nix-env -f '<nixpkgs>' -qaP -A eclipses --description
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||
</screen>
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||
Once an Eclipse variant is installed it can be run using the
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<command>eclipse</command> command, as expected. From within Eclipse it is
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then possible to install plugins in the usual manner by either manually
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||
specifying an Eclipse update site or by installing the Marketplace Client
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||
plugin and using it to discover and install other plugins. This installation
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||
method provides an Eclipse installation that closely resemble a manually
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installed Eclipse.
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||
</para>
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<para>
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If you prefer to install plugins in a more declarative manner then Nixpkgs
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also offer a number of Eclipse plugins that can be installed in an
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<emphasis>Eclipse environment</emphasis>. This type of environment is
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created using the function <varname>eclipseWithPlugins</varname> found
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inside the <varname>nixpkgs.eclipses</varname> attribute set. This function
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takes as argument <literal>{ eclipse, plugins ? [], jvmArgs ? [] }</literal>
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where <varname>eclipse</varname> is a one of the Eclipse packages described
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above, <varname>plugins</varname> is a list of plugin derivations, and
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<varname>jvmArgs</varname> is a list of arguments given to the JVM running
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||
the Eclipse. For example, say you wish to install the latest Eclipse
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Platform with the popular Eclipse Color Theme plugin and also allow Eclipse
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||
to use more RAM. You could then add
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||
<screen>
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||
packageOverrides = pkgs: {
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myEclipse = with pkgs.eclipses; eclipseWithPlugins {
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||
eclipse = eclipse-platform;
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jvmArgs = [ "-Xmx2048m" ];
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plugins = [ plugins.color-theme ];
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};
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}
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||
</screen>
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||
to your Nixpkgs configuration
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||
(<filename>~/.config/nixpkgs/config.nix</filename>) and install it by
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running <command>nix-env -f '<nixpkgs>' -iA myEclipse</command> and
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afterward run Eclipse as usual. It is possible to find out which plugins are
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||
available for installation using <varname>eclipseWithPlugins</varname> by
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||
running
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||
<screen>
|
||
$ nix-env -f '<nixpkgs>' -qaP -A eclipses.plugins --description
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||
</screen>
|
||
</para>
|
||
|
||
<para>
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||
If there is a need to install plugins that are not available in Nixpkgs then
|
||
it may be possible to define these plugins outside Nixpkgs using the
|
||
<varname>buildEclipseUpdateSite</varname> and
|
||
<varname>buildEclipsePlugin</varname> functions found in the
|
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<varname>nixpkgs.eclipses.plugins</varname> attribute set. Use the
|
||
<varname>buildEclipseUpdateSite</varname> function to install a plugin
|
||
distributed as an Eclipse update site. This function takes <literal>{ name,
|
||
src }</literal> as argument where <literal>src</literal> indicates the
|
||
Eclipse update site archive. All Eclipse features and plugins within the
|
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downloaded update site will be installed. When an update site archive is not
|
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available then the <varname>buildEclipsePlugin</varname> function can be
|
||
used to install a plugin that consists of a pair of feature and plugin JARs.
|
||
This function takes an argument <literal>{ name, srcFeature, srcPlugin
|
||
}</literal> where <literal>srcFeature</literal> and
|
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<literal>srcPlugin</literal> are the feature and plugin JARs, respectively.
|
||
</para>
|
||
|
||
<para>
|
||
Expanding the previous example with two plugins using the above functions we
|
||
have
|
||
<screen>
|
||
packageOverrides = pkgs: {
|
||
myEclipse = with pkgs.eclipses; eclipseWithPlugins {
|
||
eclipse = eclipse-platform;
|
||
jvmArgs = [ "-Xmx2048m" ];
|
||
plugins = [
|
||
plugins.color-theme
|
||
(plugins.buildEclipsePlugin {
|
||
name = "myplugin1-1.0";
|
||
srcFeature = fetchurl {
|
||
url = "http://…/features/myplugin1.jar";
|
||
sha256 = "123…";
|
||
};
|
||
srcPlugin = fetchurl {
|
||
url = "http://…/plugins/myplugin1.jar";
|
||
sha256 = "123…";
|
||
};
|
||
});
|
||
(plugins.buildEclipseUpdateSite {
|
||
name = "myplugin2-1.0";
|
||
src = fetchurl {
|
||
stripRoot = false;
|
||
url = "http://…/myplugin2.zip";
|
||
sha256 = "123…";
|
||
};
|
||
});
|
||
];
|
||
};
|
||
}
|
||
</screen>
|
||
</para>
|
||
</section>
|
||
<section xml:id="sec-elm">
|
||
<title>Elm</title>
|
||
|
||
<para>
|
||
The Nix expressions for Elm reside in
|
||
<filename>pkgs/development/compilers/elm</filename>. They are generated
|
||
automatically by <command>update-elm.rb</command> script. One should specify
|
||
versions of Elm packages inside the script, clear the
|
||
<filename>packages</filename> directory and run the script from inside it.
|
||
<literal>elm-reactor</literal> is special because it also has Elm package
|
||
dependencies. The process is not automated very much for now -- you should
|
||
get the <literal>elm-reactor</literal> source tree (e.g. with
|
||
<command>nix-shell</command>) and run <command>elm2nix.rb</command> inside
|
||
it. Place the resulting <filename>package.nix</filename> file into
|
||
<filename>packages/elm-reactor-elm.nix</filename>.
|
||
</para>
|
||
</section>
|
||
<section xml:id="sec-shell-helpers">
|
||
<title>Interactive shell helpers</title>
|
||
|
||
<para>
|
||
Some packages provide the shell integration to be more useful. But unlike
|
||
other systems, nix doesn't have a standard share directory location. This is
|
||
why a bunch <command>PACKAGE-share</command> scripts are shipped that print
|
||
the location of the corresponding shared folder. Current list of such
|
||
packages is as following:
|
||
<itemizedlist>
|
||
<listitem>
|
||
<para>
|
||
<literal>autojump</literal>: <command>autojump-share</command>
|
||
</para>
|
||
</listitem>
|
||
<listitem>
|
||
<para>
|
||
<literal>fzf</literal>: <command>fzf-share</command>
|
||
</para>
|
||
</listitem>
|
||
</itemizedlist>
|
||
E.g. <literal>autojump</literal> can then used in the .bashrc like this:
|
||
<screen>
|
||
source "$(autojump-share)/autojump.bash"
|
||
</screen>
|
||
</para>
|
||
</section>
|
||
<section xml:id="sec-steam">
|
||
<title>Steam</title>
|
||
|
||
<section xml:id="sec-steam-nix">
|
||
<title>Steam in Nix</title>
|
||
|
||
<para>
|
||
Steam is distributed as a <filename>.deb</filename> file, for now only as
|
||
an i686 package (the amd64 package only has documentation). When unpacked,
|
||
it has a script called <filename>steam</filename> that in ubuntu (their
|
||
target distro) would go to <filename>/usr/bin </filename>. When run for the
|
||
first time, this script copies some files to the user's home, which include
|
||
another script that is the ultimate responsible for launching the steam
|
||
binary, which is also in $HOME.
|
||
</para>
|
||
|
||
<para>
|
||
Nix problems and constraints:
|
||
<itemizedlist>
|
||
<listitem>
|
||
<para>
|
||
We don't have <filename>/bin/bash</filename> and many scripts point
|
||
there. Similarly for <filename>/usr/bin/python</filename> .
|
||
</para>
|
||
</listitem>
|
||
<listitem>
|
||
<para>
|
||
We don't have the dynamic loader in <filename>/lib </filename>.
|
||
</para>
|
||
</listitem>
|
||
<listitem>
|
||
<para>
|
||
The <filename>steam.sh</filename> script in $HOME can not be patched, as
|
||
it is checked and rewritten by steam.
|
||
</para>
|
||
</listitem>
|
||
<listitem>
|
||
<para>
|
||
The steam binary cannot be patched, it's also checked.
|
||
</para>
|
||
</listitem>
|
||
</itemizedlist>
|
||
</para>
|
||
|
||
<para>
|
||
The current approach to deploy Steam in NixOS is composing a FHS-compatible
|
||
chroot environment, as documented
|
||
<link xlink:href="http://sandervanderburg.blogspot.nl/2013/09/composing-fhs-compatible-chroot.html">here</link>.
|
||
This allows us to have binaries in the expected paths without disrupting
|
||
the system, and to avoid patching them to work in a non FHS environment.
|
||
</para>
|
||
</section>
|
||
|
||
<section xml:id="sec-steam-play">
|
||
<title>How to play</title>
|
||
|
||
<para>
|
||
For 64-bit systems it's important to have
|
||
<programlisting>hardware.opengl.driSupport32Bit = true;</programlisting>
|
||
in your <filename>/etc/nixos/configuration.nix</filename>. You'll also need
|
||
<programlisting>hardware.pulseaudio.support32Bit = true;</programlisting>
|
||
if you are using PulseAudio - this will enable 32bit ALSA apps integration.
|
||
To use the Steam controller, you need to add
|
||
<programlisting>services.udev.extraRules = ''
|
||
SUBSYSTEM=="usb", ATTRS{idVendor}=="28de", MODE="0666"
|
||
KERNEL=="uinput", MODE="0660", GROUP="users", OPTIONS+="static_node=uinput"
|
||
'';</programlisting>
|
||
to your configuration.
|
||
</para>
|
||
</section>
|
||
|
||
<section xml:id="sec-steam-troub">
|
||
<title>Troubleshooting</title>
|
||
|
||
<para>
|
||
<variablelist>
|
||
<varlistentry>
|
||
<term>
|
||
Steam fails to start. What do I do?
|
||
</term>
|
||
<listitem>
|
||
<para>
|
||
Try to run
|
||
<programlisting>strace steam</programlisting>
|
||
to see what is causing steam to fail.
|
||
</para>
|
||
</listitem>
|
||
</varlistentry>
|
||
<varlistentry>
|
||
<term>
|
||
Using the FOSS Radeon or nouveau (nvidia) drivers
|
||
</term>
|
||
<listitem>
|
||
<itemizedlist>
|
||
<listitem>
|
||
<para>
|
||
The <literal>newStdcpp</literal> parameter was removed since NixOS
|
||
17.09 and should not be needed anymore.
|
||
</para>
|
||
</listitem>
|
||
<listitem>
|
||
<para>
|
||
Steam ships statically linked with a version of libcrypto that
|
||
conflics with the one dynamically loaded by radeonsi_dri.so. If you
|
||
get the error
|
||
<programlisting>steam.sh: line 713: 7842 Segmentation fault (core dumped)</programlisting>
|
||
have a look at
|
||
<link xlink:href="https://github.com/NixOS/nixpkgs/pull/20269">this
|
||
pull request</link>.
|
||
</para>
|
||
</listitem>
|
||
</itemizedlist>
|
||
</listitem>
|
||
</varlistentry>
|
||
<varlistentry>
|
||
<term>
|
||
Java
|
||
</term>
|
||
<listitem>
|
||
<orderedlist>
|
||
<listitem>
|
||
<para>
|
||
There is no java in steam chrootenv by default. If you get a message
|
||
like
|
||
<programlisting>/home/foo/.local/share/Steam/SteamApps/common/towns/towns.sh: line 1: java: command not found</programlisting>
|
||
You need to add
|
||
<programlisting> steam.override { withJava = true; };</programlisting>
|
||
to your configuration.
|
||
</para>
|
||
</listitem>
|
||
</orderedlist>
|
||
</listitem>
|
||
</varlistentry>
|
||
</variablelist>
|
||
</para>
|
||
</section>
|
||
|
||
<section xml:id="sec-steam-run">
|
||
<title>steam-run</title>
|
||
|
||
<para>
|
||
The FHS-compatible chroot used for steam can also be used to run other
|
||
linux games that expect a FHS environment. To do it, add
|
||
<programlisting>pkgs.(steam.override {
|
||
nativeOnly = true;
|
||
newStdcpp = true;
|
||
}).run</programlisting>
|
||
to your configuration, rebuild, and run the game with
|
||
<programlisting>steam-run ./foo</programlisting>
|
||
</para>
|
||
</section>
|
||
</section>
|
||
<section xml:id="sec-emacs">
|
||
<title>Emacs</title>
|
||
|
||
<section xml:id="sec-emacs-config">
|
||
<title>Configuring Emacs</title>
|
||
|
||
<para>
|
||
The Emacs package comes with some extra helpers to make it easier to
|
||
configure. <varname>emacsWithPackages</varname> allows you to manage
|
||
packages from ELPA. This means that you will not have to install that
|
||
packages from within Emacs. For instance, if you wanted to use
|
||
<literal>company</literal>, <literal>counsel</literal>,
|
||
<literal>flycheck</literal>, <literal>ivy</literal>,
|
||
<literal>magit</literal>, <literal>projectile</literal>, and
|
||
<literal>use-package</literal> you could use this as a
|
||
<filename>~/.config/nixpkgs/config.nix</filename> override:
|
||
</para>
|
||
|
||
<screen>
|
||
{
|
||
packageOverrides = pkgs: with pkgs; {
|
||
myEmacs = emacsWithPackages (epkgs: (with epkgs.melpaStablePackages; [
|
||
company
|
||
counsel
|
||
flycheck
|
||
ivy
|
||
magit
|
||
projectile
|
||
use-package
|
||
]));
|
||
}
|
||
}
|
||
</screen>
|
||
|
||
<para>
|
||
You can install it like any other packages via <command>nix-env -iA
|
||
myEmacs</command>. However, this will only install those packages. It will
|
||
not <literal>configure</literal> them for us. To do this, we need to
|
||
provide a configuration file. Luckily, it is possible to do this from
|
||
within Nix! By modifying the above example, we can make Emacs load a custom
|
||
config file. The key is to create a package that provide a
|
||
<filename>default.el</filename> file in
|
||
<filename>/share/emacs/site-start/</filename>. Emacs knows to load this
|
||
file automatically when it starts.
|
||
</para>
|
||
|
||
<screen>
|
||
{
|
||
packageOverrides = pkgs: with pkgs; rec {
|
||
myEmacsConfig = writeText "default.el" ''
|
||
;; initialize package
|
||
|
||
(require 'package)
|
||
(package-initialize 'noactivate)
|
||
(eval-when-compile
|
||
(require 'use-package))
|
||
|
||
;; load some packages
|
||
|
||
(use-package company
|
||
:bind ("<C-tab>" . company-complete)
|
||
:diminish company-mode
|
||
:commands (company-mode global-company-mode)
|
||
:defer 1
|
||
:config
|
||
(global-company-mode))
|
||
|
||
(use-package counsel
|
||
:commands (counsel-descbinds)
|
||
:bind (([remap execute-extended-command] . counsel-M-x)
|
||
("C-x C-f" . counsel-find-file)
|
||
("C-c g" . counsel-git)
|
||
("C-c j" . counsel-git-grep)
|
||
("C-c k" . counsel-ag)
|
||
("C-x l" . counsel-locate)
|
||
("M-y" . counsel-yank-pop)))
|
||
|
||
(use-package flycheck
|
||
:defer 2
|
||
:config (global-flycheck-mode))
|
||
|
||
(use-package ivy
|
||
:defer 1
|
||
:bind (("C-c C-r" . ivy-resume)
|
||
("C-x C-b" . ivy-switch-buffer)
|
||
:map ivy-minibuffer-map
|
||
("C-j" . ivy-call))
|
||
:diminish ivy-mode
|
||
:commands ivy-mode
|
||
:config
|
||
(ivy-mode 1))
|
||
|
||
(use-package magit
|
||
:defer
|
||
:if (executable-find "git")
|
||
:bind (("C-x g" . magit-status)
|
||
("C-x G" . magit-dispatch-popup))
|
||
:init
|
||
(setq magit-completing-read-function 'ivy-completing-read))
|
||
|
||
(use-package projectile
|
||
:commands projectile-mode
|
||
:bind-keymap ("C-c p" . projectile-command-map)
|
||
:defer 5
|
||
:config
|
||
(projectile-global-mode))
|
||
'';
|
||
myEmacs = emacsWithPackages (epkgs: (with epkgs.melpaStablePackages; [
|
||
(runCommand "default.el" {} ''
|
||
mkdir -p $out/share/emacs/site-lisp
|
||
cp ${myEmacsConfig} $out/share/emacs/site-lisp/default.el
|
||
'')
|
||
company
|
||
counsel
|
||
flycheck
|
||
ivy
|
||
magit
|
||
projectile
|
||
use-package
|
||
]));
|
||
};
|
||
}
|
||
</screen>
|
||
|
||
<para>
|
||
This provides a fairly full Emacs start file. It will load in addition to
|
||
the user's presonal config. You can always disable it by passing
|
||
<command>-q</command> to the Emacs command.
|
||
</para>
|
||
|
||
<para>
|
||
Sometimes <varname>emacsWithPackages</varname> is not enough, as this
|
||
package set has some priorities imposed on packages (with the lowest
|
||
priority assigned to Melpa Unstable, and the highest for packages manually
|
||
defined in <filename>pkgs/top-level/emacs-packages.nix</filename>). But you
|
||
can't control this priorities when some package is installed as a
|
||
dependency. You can override it on per-package-basis, providing all the
|
||
required dependencies manually - but it's tedious and there is always a
|
||
possibility that an unwanted dependency will sneak in through some other
|
||
package. To completely override such a package you can use
|
||
<varname>overrideScope</varname>.
|
||
</para>
|
||
|
||
<screen>
|
||
overrides = super: self: rec {
|
||
haskell-mode = self.melpaPackages.haskell-mode;
|
||
...
|
||
};
|
||
((emacsPackagesNgGen emacs).overrideScope overrides).emacsWithPackages (p: with p; [
|
||
# here both these package will use haskell-mode of our own choice
|
||
ghc-mod
|
||
dante
|
||
])
|
||
</screen>
|
||
</section>
|
||
</section>
|
||
<section xml:id="sec-weechat">
|
||
<title>Weechat</title>
|
||
|
||
<para>
|
||
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
|
||
<programlisting>weechat.override {configure = {availablePlugins, ...}: {
|
||
plugins = with availablePlugins; [ python perl ];
|
||
}
|
||
}</programlisting>
|
||
If the <literal>configure</literal> function returns an attrset without the <literal>plugins</literal>
|
||
attribute, <literal>availablePlugins</literal> will be used automatically.
|
||
</para>
|
||
|
||
<para>
|
||
The plugins currently available are <literal>python</literal>,
|
||
<literal>perl</literal>, <literal>ruby</literal>, <literal>guile</literal>,
|
||
<literal>tcl</literal> and <literal>lua</literal>.
|
||
</para>
|
||
|
||
<para>
|
||
The python plugin allows the addition of extra libraries. For instance, the
|
||
<literal>inotify.py</literal> script in weechat-scripts requires D-Bus or
|
||
libnotify, and the <literal>fish.py</literal> script requires pycrypto. To
|
||
use these scripts, use the <literal>python</literal> plugin's
|
||
<literal>withPackages</literal> attribute:
|
||
<programlisting>weechat.override { configure = {availablePlugins, ...}: {
|
||
plugins = with availablePlugins; [
|
||
(python.withPackages (ps: with ps; [ pycrypto python-dbus ]))
|
||
];
|
||
};
|
||
}
|
||
</programlisting>
|
||
</para>
|
||
|
||
<para>
|
||
In order to also keep all default plugins installed, it is possible to use
|
||
the following method:
|
||
<programlisting>weechat.override { configure = { availablePlugins, ... }: {
|
||
plugins = builtins.attrValues (availablePlugins // {
|
||
python = availablePlugins.python.withPackages (ps: with ps; [ pycrypto python-dbus ]);
|
||
});
|
||
}; }
|
||
</programlisting>
|
||
</para>
|
||
<para>
|
||
WeeChat allows to set defaults on startup using the <literal>--run-command</literal>.
|
||
The <literal>configure</literal> method can be used to pass commands to the program:
|
||
<programlisting>weechat.override {
|
||
configure = { availablePlugins, ... }: {
|
||
init = ''
|
||
/set foo bar
|
||
/server add freenode chat.freenode.org
|
||
'';
|
||
};
|
||
}</programlisting>
|
||
Further values can be added to the list of commands when running
|
||
<literal>weechat --run-command "your-commands"</literal>.
|
||
</para>
|
||
<para>
|
||
Additionally it's possible to specify scripts to be loaded when starting <literal>weechat</literal>.
|
||
These will be loaded before the commands from <literal>init</literal>:
|
||
<programlisting>weechat.override {
|
||
configure = { availablePlugins, ... }: {
|
||
scripts = with pkgs.weechatScripts; [
|
||
weechat-xmpp weechat-matrix-bridge wee-slack
|
||
];
|
||
init = ''
|
||
/set plugins.var.python.jabber.key "val"
|
||
'':
|
||
};
|
||
}</programlisting>
|
||
</para>
|
||
<para>
|
||
In <literal>nixpkgs</literal> there's a subpackage which contains derivations for
|
||
WeeChat scripts. Such derivations expect a <literal>passthru.scripts</literal> attribute
|
||
which contains a list of all scripts inside the store path. Furthermore all scripts
|
||
have to live in <literal>$out/share</literal>. An exemplary derivation looks like this:
|
||
<programlisting>{ 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 $out/share
|
||
'';
|
||
}</programlisting>
|
||
</para>
|
||
</section>
|
||
<section xml:id="sec-citrix">
|
||
<title>Citrix Receiver</title>
|
||
|
||
<para>
|
||
The <link xlink:href="https://www.citrix.com/products/receiver/">Citrix
|
||
Receiver</link> is a remote desktop viewer which provides access to
|
||
<link xlink:href="https://www.citrix.com/products/xenapp-xendesktop/">XenDesktop</link>
|
||
installations.
|
||
</para>
|
||
|
||
<section xml:id="sec-citrix-base">
|
||
<title>Basic usage</title>
|
||
|
||
<para>
|
||
The tarball archive needs to be downloaded manually as the licenses
|
||
agreements of the vendor need to be accepted first. This is available at
|
||
the
|
||
<link xlink:href="https://www.citrix.com/downloads/citrix-receiver/">download
|
||
page at citrix.com</link>. Then run <literal>nix-prefetch-url
|
||
file://$PWD/linuxx64-$version.tar.gz</literal>. With the archive available
|
||
in the store the package can be built and installed with Nix.
|
||
</para>
|
||
|
||
<para>
|
||
<emphasis>Note: it's recommended to install <literal>Citrix
|
||
Receiver</literal> using <literal>nix-env -i</literal> or globally to
|
||
ensure that the <literal>.desktop</literal> files are installed properly
|
||
into <literal>$XDG_CONFIG_DIRS</literal>. Otherwise it won't be possible to
|
||
open <literal>.ica</literal> files automatically from the browser to start
|
||
a Citrix connection.</emphasis>
|
||
</para>
|
||
</section>
|
||
|
||
<section xml:id="sec-citrix-custom-certs">
|
||
<title>Custom certificates</title>
|
||
|
||
<para>
|
||
The <literal>Citrix Receiver</literal> in <literal>nixpkgs</literal> trusts
|
||
several certificates
|
||
<link xlink:href="https://curl.haxx.se/docs/caextract.html">from the
|
||
Mozilla database</link> by default. However several companies using Citrix
|
||
might require their own corporate certificate. On distros with imperative
|
||
packaging these certs can be stored easily in
|
||
<link xlink:href="https://developer-docs.citrix.com/projects/receiver-for-linux-command-reference/en/13.7/"><literal>$ICAROOT</literal></link>,
|
||
however this directory is a store path in <literal>nixpkgs</literal>. In
|
||
order to work around this issue the package provides a simple mechanism to
|
||
add custom certificates without rebuilding the entire package using
|
||
<literal>symlinkJoin</literal>:
|
||
<programlisting>
|
||
<![CDATA[with import <nixpkgs> { config.allowUnfree = true; };
|
||
let extraCerts = [ ./custom-cert-1.pem ./custom-cert-2.pem /* ... */ ]; in
|
||
citrix_receiver.override {
|
||
inherit extraCerts;
|
||
}]]>
|
||
</programlisting>
|
||
</para>
|
||
</section>
|
||
</section>
|
||
</chapter>
|