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/* This file composes the Nix Packages collection. That is, it
imports the functions that build the various packages, and calls
them with appropriate arguments. The result is a set of all the
packages in the Nix Packages collection for some particular
platform. */
{ # The system (e.g., `i686-linux') for which to build the packages.
system
, # The standard environment to use. Only used for bootstrapping. If
# null, the default standard environment is used.
bootStdenv ? null
, # Non-GNU/Linux OSes are currently "impure" platforms, with their libc
# outside of the store. Thus, GCC, GFortran, & co. must always look for
# files in standard system directories (/usr/include, etc.)
noSysDirs ? (system != "x86_64-freebsd" && system != "i686-freebsd"
&& system != "x86_64-solaris"
&& system != "x86_64-kfreebsd-gnu")
, # Allow a configuration attribute set to be passed in as an argument.
config ? {}
, crossSystem ? null
, platform ? null
}:
let configExpr = config; platform_ = platform; in # rename the function arguments
let
lib = import ../../lib;
# Allow both:
# { /* the config */ } and
# { pkgs, ... } : { /* the config */ }
config =
if builtins.isFunction configExpr
then configExpr { inherit pkgs; }
else configExpr;
# Allow setting the platform in the config file. Otherwise, let's use a reasonable default (pc)
platformAuto = let
platforms = (import ./platforms.nix);
in
if system == "armv6l-linux" then platforms.raspberrypi
else if system == "armv7l-linux" then platforms.armv7l-hf-multiplatform
else if system == "armv5tel-linux" then platforms.sheevaplug
else if system == "mips64el-linux" then platforms.fuloong2f_n32
else if system == "x86_64-linux" then platforms.pc64
else if system == "i686-linux" then platforms.pc32
else platforms.pcBase;
platform = if platform_ != null then platform_
else config.platform or platformAuto;
topLevelArguments = {
inherit system bootStdenv noSysDirs config crossSystem platform lib;
};
# Allow packages to be overridden globally via the `packageOverrides'
# configuration option, which must be a function that takes `pkgs'
# as an argument and returns a set of new or overridden packages.
# The `packageOverrides' function is called with the *original*
# (un-overridden) set of packages, allowing packageOverrides
# attributes to refer to the original attributes (e.g. "foo =
# ... pkgs.foo ...").
pkgs = pkgsWithOverrides (self: config.packageOverrides or (super: {}));
# Return the complete set of packages, after applying the overrides
# returned by the `overrider' function (see above). Warning: this
# function is very expensive!
pkgsWithOverrides = overrider:
let
stdenvAdapters = self: super:
let res = import ../stdenv/adapters.nix self; in res // {
stdenvAdapters = res;
};
trivialBuilders = self: super:
(import ../build-support/trivial-builders.nix {
inherit lib; inherit (self) stdenv; inherit (self.xorg) lndir;
});
stdenvDefault = self: super: (import ./stdenv.nix topLevelArguments) {} pkgs;
allPackagesArgs = topLevelArguments // { inherit pkgsWithOverrides; };
allPackages = self: super:
let res = import ./all-packages.nix allPackagesArgs res self;
in res;
aliases = self: super: import ./aliases.nix super;
# stdenvOverrides is used to avoid circular dependencies for building
# the standard build environment. This mechanism uses the override
# mechanism to implement some staged compilation of the stdenv.
#
# We don't want stdenv overrides in the case of cross-building, or
# otherwise the basic overridden packages will not be built with the
# crossStdenv adapter.
stdenvOverrides = self: super:
lib.optionalAttrs (crossSystem == null && super.stdenv ? overrides)
(super.stdenv.overrides super);
customOverrides = self: super:
lib.optionalAttrs (bootStdenv == null) (overrider self super);
in
lib.fix' (
lib.extends customOverrides (
lib.extends stdenvOverrides (
lib.extends aliases (
lib.extends allPackages (
lib.extends stdenvDefault (
lib.extends trivialBuilders (
lib.extends stdenvAdapters (
self: {}))))))));
in
pkgs
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