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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 ? builtins.currentSystem
, # 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")
# More flags for the bootstrapping of stdenv.
, gccWithCC ? true
, gccWithProfiling ? true
, # Allow a configuration attribute set to be passed in as an
# argument. Otherwise, it's read from $NIXPKGS_CONFIG or
# ~/.nixpkgs/config.nix.
config ? null
, crossSystem ? null
, platform ? null
}:
let config_ = config; platform_ = platform; in # rename the function arguments
let
lib = import ../../lib;
# The contents of the configuration file found at $NIXPKGS_CONFIG or
# $HOME/.nixpkgs/config.nix.
# for NIXOS (nixos-rebuild): use nixpkgs.config option
config =
let
toPath = builtins.toPath;
getEnv = x: if builtins ? getEnv then builtins.getEnv x else "";
pathExists = name:
builtins ? pathExists && builtins.pathExists (toPath name);
configFile = getEnv "NIXPKGS_CONFIG";
homeDir = getEnv "HOME";
configFile2 = homeDir + "/.nixpkgs/config.nix";
configExpr =
if config_ != null then config_
else if configFile != "" && pathExists configFile then import (toPath configFile)
else if homeDir != "" && pathExists configFile2 then import (toPath configFile2)
else {};
in
# allow both:
# { /* the config */ } and
# { pkgs, ... } : { /* the 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 gccWithCC gccWithProfiling config
crossSystem platform lib;
};
# Allow packages to be overriden globally via the `packageOverrides'
# configuration option, which must be a function that takes `pkgs'
# as an argument and returns a set of new or overriden packages.
# The `packageOverrides' function is called with the *original*
# (un-overriden) set of packages, allowing packageOverrides
# attributes to refer to the original attributes (e.g. "foo =
# ... pkgs.foo ...").
pkgs = pkgsWithOverrides (self: config.packageOverrides or (super: {}));
# stdenvOverrides is used to avoid circular dependencies for building the
# standard build environment. This mechanism use 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 overrided packages will not be built with the
# crossStdenv adapter.
stdenvOverrides = pkgs:
lib.optionalAttrs (crossSystem == null && pkgs.stdenv ? overrides)
(pkgs.stdenv.overrides pkgs);
# 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 =
let res = import ../stdenv/adapters.nix pkgs; in res // {
stdenvAdapters = res;
};
trivialBuilders =
(import ../build-support/trivial-builders.nix { inherit lib; inherit (pkgs) stdenv; inherit (pkgs.xorg) lndir; });
stdenvDefault = (import ./stdenv.nix topLevelArguments) {} pkgs;
allPackagesArgs = topLevelArguments // { inherit pkgsWithOverrides; };
allPackages =
let res = import ./all-packages.nix allPackagesArgs res pkgs;
in res;
aliases = super: import ./aliases.nix super;
pkgs_2 = stdenvAdapters;
pkgs_3 = pkgs_2 // trivialBuilders;
pkgs_4 = pkgs_3 // stdenvDefault;
pkgs_5 = pkgs_4 // allPackages;
pkgs_6 = pkgs_5 // aliases pkgs_5;
pkgs_7 = pkgs_6 // overrider pkgs pkgs_6;
# The overriden, final packages.
pkgs = pkgs_7 // stdenvOverrides pkgs_6;
in pkgs;
in
pkgs
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