lix/flake.nix
Qyriad 56f5d32c8c build: optionally build and install with meson
This commit adds several meson.build, which successfully build and
install Lix executables, libraries, and headers. Meson does not yet
build docs, Perl bindings, or run tests, which will be added in
following commits. As such, this commit does not remove the existing
build system, or make it the default, and also as such, this commit has
several FIXMEs and TODOs as notes for what should be done before the
existing autoconf + make buildsystem can be removed and Meson made the
default. This commit does not modify any source files.

A Meson-enabled build is also added as a Hydra job, and to
`nix flake check`.

Change-Id: I667c8685b13b7bab91e281053f807a11616ae3d4
2024-03-22 08:36:50 -06:00

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{
description = "The purely functional package manager";
inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.11-small";
inputs.nixpkgs-regression.url = "github:NixOS/nixpkgs/215d4d0fd80ca5163643b03a33fde804a29cc1e2";
inputs.flake-compat = { url = "github:edolstra/flake-compat"; flake = false; };
outputs = { self, nixpkgs, nixpkgs-regression, flake-compat }:
let
inherit (nixpkgs) lib;
inherit (lib) fileset;
officialRelease = true;
# Set to true to build the release notes for the next release.
buildUnreleasedNotes = false;
version = lib.fileContents ./.version + versionSuffix;
versionSuffix =
if officialRelease
then ""
else "pre${builtins.substring 0 8 (self.lastModifiedDate or self.lastModified or "19700101")}_${self.shortRev or "dirty"}";
linux32BitSystems = [ "i686-linux" ];
linux64BitSystems = [ "x86_64-linux" "aarch64-linux" ];
linuxSystems = linux32BitSystems ++ linux64BitSystems;
darwinSystems = [ "x86_64-darwin" "aarch64-darwin" ];
systems = linuxSystems ++ darwinSystems;
crossSystems = [
"armv6l-linux" "armv7l-linux"
"x86_64-freebsd13" "x86_64-netbsd"
];
stdenvs = [ "gccStdenv" "clangStdenv" "stdenv" "libcxxStdenv" "ccacheStdenv" ];
forAllSystems = lib.genAttrs systems;
forAllCrossSystems = lib.genAttrs crossSystems;
forAllStdenvs = f:
lib.listToAttrs
(map
(stdenvName: {
name = "${stdenvName}Packages";
value = f stdenvName;
})
stdenvs);
# Memoize nixpkgs for different platforms for efficiency.
nixpkgsFor = forAllSystems
(system: let
make-pkgs = crossSystem: stdenv: import nixpkgs {
localSystem = {
inherit system;
};
crossSystem = if crossSystem == null then null else {
system = crossSystem;
} // lib.optionalAttrs (crossSystem == "x86_64-freebsd13") {
useLLVM = true;
};
overlays = [
(overlayFor (p: p.${stdenv}))
];
config.permittedInsecurePackages = [ "nix-2.13.6" ];
};
stdenvs = forAllStdenvs (make-pkgs null);
native = stdenvs.stdenvPackages;
in {
inherit stdenvs native;
static = native.pkgsStatic;
cross = forAllCrossSystems (crossSystem: make-pkgs crossSystem "stdenv");
});
testNixVersions = pkgs: client: daemon: let
nix = pkgs.callPackage ./package.nix {
pname =
"nix-tests"
+ lib.optionalString
(lib.versionAtLeast daemon.version "2.4pre20211005" &&
lib.versionAtLeast client.version "2.4pre20211005")
"-${client.version}-against-${daemon.version}";
inherit fileset;
};
in nix.overrideAttrs (prevAttrs: {
NIX_DAEMON_PACKAGE = daemon;
NIX_CLIENT_PACKAGE = client;
dontBuild = true;
doInstallCheck = true;
configureFlags = prevAttrs.configureFlags ++ [
# We don't need the actual build here.
"--disable-build"
];
installPhase = ''
mkdir -p $out
'';
installCheckPhase = lib.optionalString pkgs.stdenv.hostPlatform.isDarwin ''
export OBJC_DISABLE_INITIALIZE_FORK_SAFETY=YES
'' + ''
mkdir -p src/nix-channel
make installcheck -j$NIX_BUILD_CORES -l$NIX_BUILD_CORES
'';
});
binaryTarball = nix: pkgs:
let
inherit (pkgs) buildPackages;
installerClosureInfo = buildPackages.closureInfo { rootPaths = [ nix ]; };
in
buildPackages.runCommand "nix-binary-tarball-${version}"
{ #nativeBuildInputs = lib.optional (system != "aarch64-linux") shellcheck;
meta.description = "Distribution-independent Nix bootstrap binaries for ${pkgs.system}";
}
''
cp ${installerClosureInfo}/registration $TMPDIR/reginfo
dir=nix-${version}-${pkgs.system}
fn=$out/$dir.tar.xz
mkdir -p $out/nix-support
echo "file binary-dist $fn" >> $out/nix-support/hydra-build-products
tar cvfJ $fn \
--owner=0 --group=0 --mode=u+rw,uga+r \
--mtime='1970-01-01' \
--absolute-names \
--hard-dereference \
--transform "s,$TMPDIR/reginfo,$dir/.reginfo," \
--transform "s,$NIX_STORE,$dir/store,S" \
$TMPDIR/reginfo \
$(cat ${installerClosureInfo}/store-paths)
'';
overlayFor = getStdenv: final: prev:
let
currentStdenv = getStdenv final;
comDeps = with final; commonDeps {
inherit pkgs;
inherit (currentStdenv.hostPlatform) isStatic;
};
in {
nixStable = prev.nix;
# Forward from the previous stage as we dont want it to pick the lowdown override
nixUnstable = prev.nixUnstable;
changelog-d = final.buildPackages.callPackage ./misc/changelog-d.nix { };
boehmgc-nix = (final.boehmgc.override {
enableLargeConfig = true;
}).overrideAttrs (o: {
patches = (o.patches or [ ]) ++ [
./boehmgc-coroutine-sp-fallback.diff
# https://github.com/ivmai/bdwgc/pull/586
./boehmgc-traceable_allocator-public.diff
];
});
default-busybox-sandbox-shell = final.busybox.override {
useMusl = true;
enableStatic = true;
enableMinimal = true;
extraConfig = ''
CONFIG_FEATURE_FANCY_ECHO y
CONFIG_FEATURE_SH_MATH y
CONFIG_FEATURE_SH_MATH_64 y
CONFIG_ASH y
CONFIG_ASH_OPTIMIZE_FOR_SIZE y
CONFIG_ASH_ALIAS y
CONFIG_ASH_BASH_COMPAT y
CONFIG_ASH_CMDCMD y
CONFIG_ASH_ECHO y
CONFIG_ASH_GETOPTS y
CONFIG_ASH_INTERNAL_GLOB y
CONFIG_ASH_JOB_CONTROL y
CONFIG_ASH_PRINTF y
CONFIG_ASH_TEST y
'';
};
nix = final.callPackage ./package.nix {
inherit versionSuffix fileset;
stdenv = currentStdenv;
boehmgc = final.boehmgc-nix;
busybox-sandbox-shell = final.busybox-sandbox-shell or final.default-busybox-sandbox-shell;
};
};
in {
# A Nixpkgs overlay that overrides the 'nix' and
# 'nix.perl-bindings' packages.
overlays.default = overlayFor (p: p.stdenv);
hydraJobs = {
# Binary package for various platforms.
build = forAllSystems (system: self.packages.${system}.nix);
# FIXME(Qyriad): remove this when the migration to Meson has been completed.
mesonBuild = forAllSystems (system: self.packages.${system}.nix.override {
buildWithMeson = true;
});
mesonBuildClang = forAllSystems (system:
nixpkgsFor.${system}.stdenvs.clangStdenvPackages.nix.override {
buildWithMeson = true;
}
);
# Perl bindings for various platforms.
perlBindings = forAllSystems (system: nixpkgsFor.${system}.native.nix.perl-bindings);
# Binary tarball for various platforms, containing a Nix store
# with the closure of 'nix' package.
binaryTarball = forAllSystems (system: binaryTarball nixpkgsFor.${system}.native.nix nixpkgsFor.${system}.native);
# docker image with Nix inside
dockerImage = lib.genAttrs linux64BitSystems (system: self.packages.${system}.dockerImage);
# API docs for Nix's unstable internal C++ interfaces.
internal-api-docs = let
nixpkgs = nixpkgsFor.x86_64-linux.native;
inherit (nixpkgs) pkgs;
nix = pkgs.callPackage ./package.nix {
inherit versionSuffix fileset officialRelease buildUnreleasedNotes;
inherit (pkgs) changelog-d;
internalApiDocs = true;
boehmgc = pkgs.boehmgc-nix;
busybox-sandbox-shell = pkgs.busybox-sandbox-shell;
};
in
nix.overrideAttrs (prev: {
# This Hydra job is just for the internal API docs.
# We don't need the build artifacts here.
dontBuild = true;
doCheck = false;
doInstallCheck = false;
});
# System tests.
tests = import ./tests/nixos { inherit lib nixpkgs nixpkgsFor; } // {
# Make sure that nix-env still produces the exact same result
# on a particular version of Nixpkgs.
evalNixpkgs =
with nixpkgsFor.x86_64-linux.native;
runCommand "eval-nixos" { buildInputs = [ nix ]; }
''
type -p nix-env
# Note: we're filtering out nixos-install-tools because https://github.com/NixOS/nixpkgs/pull/153594#issuecomment-1020530593.
time nix-env --store dummy:// -f ${nixpkgs-regression} -qaP --drv-path | sort | grep -v nixos-install-tools > packages
[[ $(sha1sum < packages | cut -c1-40) = 402242fca90874112b34718b8199d844e8b03d12 ]]
mkdir $out
'';
nixpkgsLibTests =
forAllSystems (system:
import (nixpkgs + "/lib/tests/release.nix")
{ pkgs = nixpkgsFor.${system}.native;
nixVersions = [ self.packages.${system}.nix ];
}
);
};
};
checks = forAllSystems (system: {
# FIXME(Qyriad): remove this when the migration to Meson has been completed.
mesonBuild = self.hydraJobs.mesonBuild.${system};
mesonBuildClang = self.hydraJobs.mesonBuildClang.${system};
binaryTarball = self.hydraJobs.binaryTarball.${system};
perlBindings = self.hydraJobs.perlBindings.${system};
nixpkgsLibTests = self.hydraJobs.tests.nixpkgsLibTests.${system};
rl-next =
let pkgs = nixpkgsFor.${system}.native;
in pkgs.buildPackages.runCommand "test-rl-next-release-notes" { } ''
LANG=C.UTF-8 ${pkgs.changelog-d}/bin/changelog-d ${./doc/manual/rl-next} >$out
'';
} // (lib.optionalAttrs (builtins.elem system linux64BitSystems)) {
dockerImage = self.hydraJobs.dockerImage.${system};
});
packages = forAllSystems (system: rec {
inherit (nixpkgsFor.${system}.native) nix;
default = nix;
} // (lib.optionalAttrs (builtins.elem system linux64BitSystems) {
nix-static = nixpkgsFor.${system}.static.nix;
dockerImage =
let
pkgs = nixpkgsFor.${system}.native;
image = import ./docker.nix { inherit pkgs; tag = version; };
in
pkgs.runCommand
"docker-image-tarball-${version}"
{ meta.description = "Docker image with Nix for ${system}"; }
''
mkdir -p $out/nix-support
image=$out/image.tar.gz
ln -s ${image} $image
echo "file binary-dist $image" >> $out/nix-support/hydra-build-products
'';
} // builtins.listToAttrs (map
(crossSystem: {
name = "nix-${crossSystem}";
value = nixpkgsFor.${system}.cross.${crossSystem}.nix;
})
crossSystems)
// builtins.listToAttrs (map
(stdenvName: {
name = "nix-${stdenvName}";
value = nixpkgsFor.${system}.stdenvs."${stdenvName}Packages".nix;
})
stdenvs)));
devShells = let
makeShell = pkgs: stdenv:
let
nix = pkgs.callPackage ./package.nix {
inherit stdenv versionSuffix fileset;
boehmgc = pkgs.boehmgc-nix;
busybox-sandbox-shell = pkgs.busybox-sandbox-shell or pkgs.default-busybox-sandbox;
forDevShell = true;
};
in
nix.overrideAttrs (prev: {
# Required for clang-tidy checks
buildInputs = prev.buildInputs ++ lib.optionals (stdenv.cc.isClang) [ pkgs.llvmPackages.llvm pkgs.llvmPackages.clang-unwrapped.dev ];
nativeBuildInputs = prev.nativeBuildInputs
++ lib.optional (stdenv.cc.isClang && !stdenv.buildPlatform.isDarwin) pkgs.buildPackages.bear
# Required for clang-tidy checks
++ lib.optionals (stdenv.cc.isClang) [ pkgs.buildPackages.cmake pkgs.buildPackages.ninja pkgs.buildPackages.llvmPackages.llvm.dev ]
++ lib.optional
(stdenv.cc.isClang && stdenv.hostPlatform == stdenv.buildPlatform)
# for some reason that seems accidental and was changed in
# NixOS 24.05-pre, clang-tools is pinned to LLVM 14 when
# default LLVM is newer.
(pkgs.buildPackages.clang-tools.override { inherit (pkgs.buildPackages) llvmPackages; })
++ [
# FIXME(Qyriad): remove once the migration to Meson is complete.
pkgs.buildPackages.meson
pkgs.buildPackages.ninja
];
src = null;
installFlags = "sysconfdir=$(out)/etc";
strictDeps = false;
shellHook = ''
PATH=$prefix/bin:$PATH
unset PYTHONPATH
export MANPATH=$out/share/man:$MANPATH
# Make bash completion work.
XDG_DATA_DIRS+=:$out/share
'';
} // lib.optionalAttrs (stdenv.buildPlatform.isLinux && pkgs.glibcLocales != null) {
# Required to make non-NixOS Linux not complain about missing locale files during configure in a dev shell
LOCALE_ARCHIVE = "${lib.getLib pkgs.glibcLocales}/lib/locale/locale-archive";
});
in
forAllSystems (system:
let
makeShells = prefix: pkgs:
lib.mapAttrs'
(k: v: lib.nameValuePair "${prefix}-${k}" v)
(forAllStdenvs (stdenvName: makeShell pkgs pkgs.${stdenvName}));
in
(makeShells "native" nixpkgsFor.${system}.native) //
(makeShells "static" nixpkgsFor.${system}.static) //
(forAllCrossSystems (crossSystem: let pkgs = nixpkgsFor.${system}.cross.${crossSystem}; in makeShell pkgs pkgs.stdenv)) //
{
default = self.devShells.${system}.native-stdenvPackages;
}
);
};
}