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nixpkgs/nixos/modules/config/system-path.nix
2018-11-12 19:55:30 -02:00

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Nix

# This module defines the packages that appear in
# /run/current-system/sw.
{ config, lib, pkgs, ... }:
with lib;
let
requiredPackages =
[ config.nix.package
pkgs.acl
pkgs.attr
pkgs.bashInteractive # bash with ncurses support
pkgs.bzip2
pkgs.coreutils-full
pkgs.cpio
pkgs.curl
pkgs.diffutils
pkgs.findutils
pkgs.gawk
pkgs.stdenv.cc.libc
pkgs.getent
pkgs.getconf
pkgs.gnugrep
pkgs.gnupatch
pkgs.gnused
pkgs.gnutar
pkgs.gzip
pkgs.xz
pkgs.less
pkgs.libcap
pkgs.nano
pkgs.ncurses
pkgs.netcat
pkgs.nix-info
config.programs.ssh.package
pkgs.perl
pkgs.procps
pkgs.rsync
pkgs.strace
pkgs.su
pkgs.time
pkgs.utillinux
pkgs.which # 88K size
];
in
{
options = {
environment = {
systemPackages = mkOption {
type = types.listOf types.package;
default = [];
example = literalExample "[ pkgs.firefox pkgs.thunderbird ]";
description = ''
The set of packages that appear in
/run/current-system/sw. These packages are
automatically available to all users, and are
automatically updated every time you rebuild the system
configuration. (The latter is the main difference with
installing them in the default profile,
<filename>/nix/var/nix/profiles/default</filename>.
'';
};
pathsToLink = mkOption {
type = types.listOf types.str;
# Note: We need `/lib' to be among `pathsToLink' for NSS modules
# to work.
default = [];
example = ["/"];
description = "List of directories to be symlinked in <filename>/run/current-system/sw</filename>.";
};
extraOutputsToInstall = mkOption {
type = types.listOf types.str;
default = [ ];
example = [ "doc" "info" "devdoc" ];
description = "List of additional package outputs to be symlinked into <filename>/run/current-system/sw</filename>.";
};
extraSetup = mkOption {
type = types.lines;
default = "";
description = "Shell fragments to be run after the system environment has been created. This should only be used for things that need to modify the internals of the environment, e.g. generating MIME caches. The environment being built can be accessed at $out.";
};
};
system = {
path = mkOption {
internal = true;
description = ''
The packages you want in the boot environment.
'';
};
};
};
config = {
environment.systemPackages = requiredPackages;
environment.pathsToLink =
[ "/bin"
"/etc/xdg"
"/etc/gtk-2.0"
"/etc/gtk-3.0"
"/lib" # FIXME: remove and update debug-info.nix
"/sbin"
"/share/emacs"
"/share/nano"
"/share/org"
"/share/themes"
"/share/vim-plugins"
"/share/vulkan"
"/share/kservices5"
"/share/kservicetypes5"
"/share/kxmlgui5"
];
system.path = pkgs.buildEnv {
name = "system-path";
paths = config.environment.systemPackages;
inherit (config.environment) pathsToLink extraOutputsToInstall;
ignoreCollisions = true;
# !!! Hacky, should modularise.
# outputs TODO: note that the tools will often not be linked by default
postBuild =
''
if [ -x $out/bin/glib-compile-schemas -a -w $out/share/glib-2.0/schemas ]; then
$out/bin/glib-compile-schemas $out/share/glib-2.0/schemas
fi
${config.environment.extraSetup}
'';
};
};
}