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nixpkgs/system/system.nix

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{ platform ? __currentSystem
, configuration
, nixpkgsPath ? ../../nixpkgs
}:
rec {
configComponents = [
configuration
(import ./options.nix)
];
noOption = name: values:
abort "${name}: Used without option declaration.";
# Make a configuration object from which we can retrieve option
# values.
config =
pkgs.lib.fixOptionSets
(pkgs.lib.mergeOptionSets noOption)
pkgs configComponents;
optionDeclarations =
pkgs.lib.fixOptionSetsFun
pkgs.lib.filterOptionSets
pkgs configComponents
config;
pkgs = import "${nixpkgsPath}/pkgs/top-level/all-packages.nix" {system = platform;};
manifests = config.installer.manifests; # exported here because nixos-rebuild uses it
nix = config.environment.nix;
kernelPackages = config.boot.kernelPackages;
kernel = kernelPackages.kernel;
modulesTree = config.system.modulesTree;
# The initial ramdisk.
initialRamdiskStuff = import ../boot/boot-stage-1.nix {
inherit pkgs config;
};
initialRamdisk = initialRamdiskStuff.initialRamdisk;
# NixOS installation/updating tools.
nixosTools = import ../installer {
inherit pkgs config;
};
# NSS modules. Hacky!
nssModules = config.system.nssModules.list;
nssModulesPath = config.system.nssModules.path;
# Wrapper around modprobe to set the path to the modules.
modprobe = config.system.sbin.modprobe;
# Environment variables for running Nix.
nixEnvVars = config.nix.envVars;
# The static parts of /etc.
etc = import ../etc/default.nix {
inherit config pkgs systemPath wrapperDir
defaultShell;
};
# Font aggregation
fontDir = import ./fontdir.nix {
inherit config pkgs;
inherit (pkgs) builderDefs ttmkfdir;
inherit (pkgs.xorg) mkfontdir mkfontscale fontalias;
};
# The wrapper setuid programs (since we can't have setuid programs
# in the Nix store).
wrapperDir = "/var/setuid-wrappers";
setuidWrapper = import ../helpers/setuid {
inherit (pkgs) stdenv;
inherit wrapperDir;
};
# A patched `mount' command that looks in a directory in the Nix
# store instead of in /sbin for mount helpers (like mount.ntfs-3g or
# mount.cifs).
mount = config.system.sbin.mount;
# The packages you want in the boot environment.
systemPathList = [
# Better leave them here - they are small, needed,
# and hard to refer from anywhere outside.
modprobe # must take precedence over module_init_tools
mount # must take precedence over util-linux
nix
nixosTools.nixosInstall
nixosTools.nixosRebuild
nixosTools.nixosCheckout
nixosTools.nixosHardwareScan
nixosTools.nixosGenSeccureKeys
setuidWrapper
]
++ pkgs.lib.optionals (!config.environment.cleanStart) [
pkgs.bashInteractive # bash with ncurses support
pkgs.bzip2
pkgs.coreutils
pkgs.cpio
pkgs.curl
pkgs.e2fsprogs
pkgs.findutils
pkgs.glibc # for ldd, getent
pkgs.gnugrep
pkgs.gnused
pkgs.gnutar
pkgs.grub
pkgs.gzip
pkgs.iputils
pkgs.less
pkgs.lvm2
2008-02-07 14:39:32 +00:00
pkgs.man
pkgs.mdadm
pkgs.module_init_tools
pkgs.nano
pkgs.ncurses
pkgs.netcat
pkgs.nettools
pkgs.ntp
pkgs.openssh
pkgs.pciutils
pkgs.perl
pkgs.procps
pkgs.pwdutils
pkgs.reiserfsprogs
pkgs.rsync
pkgs.seccureUser
pkgs.strace
pkgs.su
pkgs.sysklogd
pkgs.sysvtools
pkgs.time
pkgs.udev
pkgs.upstart
pkgs.usbutils
pkgs.utillinux
pkgs.wirelesstools
]
++ pkgs.lib.optional config.security.sudo.enable pkgs.sudo
++ pkgs.lib.optional config.services.atd.enable pkgs.at
++ pkgs.lib.optional config.services.bitlbee.enable pkgs.bitlbee
++ pkgs.lib.optional config.networking.defaultMailServer.directDelivery pkgs.ssmtp
++ config.environment.extraPackages
++ pkgs.lib.optional config.fonts.enableFontDir fontDir
++ pkgs.lib.optional config.hardware.enableGo7007 kernelPackages.wis_go7007
# NSS modules need to be in `systemPath' so that (i) the builder
# chroot gets to seem them, and (ii) applications can benefit from
# changes in the list of NSS modules at run-time, without requiring
# a reboot.
++ nssModules;
# We don't want to put all of `startPath' and `path' in $PATH, since
# then we get an embarrassingly long $PATH. So use the user
# environment builder to make a directory with symlinks to those
# packages.
systemPath = pkgs.buildEnv {
name = "system-path";
paths = systemPathList;
# Note: We need `/lib' to be among `pathsToLink' for NSS modules
# to work.
inherit (config.environment) pathsToLink;
ignoreCollisions = true;
};
usersGroups = import ./users-groups.nix { inherit pkgs config defaultShell; };
defaultShell = "/var/run/current-system/sw/bin/bash";
# The script that activates the configuration, i.e., it sets up
# /etc, accounts, etc. It doesn't do anything that can only be done
# at boot time (such as start `init').
activateConfiguration = pkgs.substituteAll rec {
src = ./activate-configuration.sh;
isExecutable = true;
inherit etc wrapperDir systemPath modprobe defaultShell kernel;
hostName = config.networking.hostName;
setuidPrograms =
config.security.setuidPrograms ++
config.security.extraSetuidPrograms ++
pkgs.lib.optional config.security.sudo.enable "sudo" ++
pkgs.lib.optionals config.services.atd.enable ["at" "atq" "atrm"] ++
pkgs.lib.optional (config.services.xserver.sessionType == "kde") "kcheckpass" ++
map ( x : x.program ) config.security.setuidOwners;
inherit (usersGroups) createUsersGroups usersList groupsList;
path = [
pkgs.coreutils pkgs.gnugrep pkgs.findutils
pkgs.glibc # needed for getent
pkgs.pwdutils
];
bash = pkgs.bashInteractive;
adjustSetuidOwner = pkgs.lib.concatStrings (map
(_entry: let entry = {
owner = "nobody";
group = "nogroup";
setuid = false;
setgid = false;
} //_entry; in
''
chown ${entry.owner}.${entry.group} $wrapperDir/${entry.program}
chmod u${if entry.setuid then "+" else "-"}s $wrapperDir/${entry.program}
chmod g${if entry.setgid then "+" else "-"}s $wrapperDir/${entry.program}
'')
config.security.setuidOwners);
};
# The init script of boot stage 2, which is supposed to do
# everything else to bring up the system.
bootStage2 = import ../boot/boot-stage-2.nix {
inherit (pkgs) substituteAll writeText coreutils
utillinux udev upstart;
inherit kernel activateConfiguration;
inherit (config.boot) isLiveCD;
upstartPath = [
pkgs.coreutils
pkgs.findutils
pkgs.gnugrep
pkgs.gnused
pkgs.upstart
];
bootLocal = config.boot.localCommands;
};
# Script to build the Grub menu containing the current and previous
# system configurations.
grubMenuBuilder = pkgs.substituteAll {
src = ../installer/grub-menu-builder.sh;
isExecutable = true;
inherit (pkgs) bash;
path = [pkgs.coreutils pkgs.gnused pkgs.gnugrep];
inherit (config.boot) copyKernels extraGrubEntries extraGrubEntriesBeforeNixos
grubSplashImage bootMount configurationLimit;
};
# Putting it all together. This builds a store object containing
# symlinks to the various parts of the built configuration (the
# kernel, the Upstart services, the init scripts, etc.) as well as a
# script `switch-to-configuration' that activates the configuration
# and makes it bootable.
system = pkgs.checker (pkgs.stdenv.mkDerivation {
name = "system";
builder = ./system.sh;
switchToConfiguration = ./switch-to-configuration.sh;
inherit (pkgs) grub coreutils gnused gnugrep diffutils findutils upstart;
grubDevice = config.boot.grubDevice;
kernelParams =
config.boot.kernelParams ++ config.boot.extraKernelParams;
inherit bootStage2;
inherit activateConfiguration;
inherit grubMenuBuilder;
inherit etc;
inherit systemPath;
kernel = kernel + "/vmlinuz";
initrd = initialRamdisk + "/initrd";
# Most of these are needed by grub-install.
path = [
pkgs.coreutils
pkgs.gnused
pkgs.gnugrep
pkgs.findutils
pkgs.diffutils
pkgs.upstart # for initctl
];
# !!! wtf does this do???
children = map (x: ((import ./system.nix)
{ inherit platform;
configuration = x//{boot=((x.boot)//{grubDevice = "";});};}).system)
config.nesting.children;
configurationName = config.boot.configurationName;
}) config.environment.checkConfigurationOptions
optionDeclarations config;
}