nix/flake.nix
sternenseemann d0e34c85f8 libcmd/markdown: handle allocation errors in lowdown_term_rndr
We upgrade to lowdown 0.8.0 [1] which contains a fix/improvement to a
behavior mentioned in this issue thread [2] where a big part of
lowdown's API would just call exit(1) on allocation errors since that
is a satisfying behavior for the lowdown binary.

Now lowdown_term_rndr returns 0 if an allocation error occurred which we
check for in libcmd/markdown.cc.

Also the extern "C" { } wrapper around lowdown.h has been removed as it
is not necessary.

[1]: 6ca7c855a0/versions.xml (L987-L1006)
[2]: https://github.com/kristapsdz/lowdown/issues/45#issuecomment-756681153
2021-02-06 13:14:57 +01:00

507 lines
17 KiB
Nix

{
description = "The purely functional package manager";
inputs.nixpkgs.url = "nixpkgs/nixos-20.09-small";
#inputs.lowdown-src = { url = "github:kristapsdz/lowdown"; flake = false; };
outputs = { self, nixpkgs }:
let
version = builtins.readFile ./.version + versionSuffix;
versionSuffix =
if officialRelease
then ""
else "pre${builtins.substring 0 8 (self.lastModifiedDate or self.lastModified or "19700101")}_${self.shortRev or "dirty"}";
officialRelease = false;
linux64BitSystems = [ "x86_64-linux" "aarch64-linux" ];
linuxSystems = linux64BitSystems ++ [ "i686-linux" ];
systems = linuxSystems ++ [ "x86_64-darwin" ];
forAllSystems = f: nixpkgs.lib.genAttrs systems (system: f system);
# Memoize nixpkgs for different platforms for efficiency.
nixpkgsFor = forAllSystems (system:
import nixpkgs {
inherit system;
overlays = [ self.overlay ];
}
);
commonDeps = pkgs: with pkgs; rec {
# Use "busybox-sandbox-shell" if present,
# if not (legacy) fallback and hope it's sufficient.
sh = pkgs.busybox-sandbox-shell or (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
'';
});
configureFlags =
lib.optionals stdenv.isLinux [
"--with-sandbox-shell=${sh}/bin/busybox"
"LDFLAGS=-fuse-ld=gold"
];
nativeBuildDeps =
[
buildPackages.bison
buildPackages.flex
(lib.getBin buildPackages.lowdown)
buildPackages.mdbook
buildPackages.autoconf-archive
buildPackages.autoreconfHook
buildPackages.pkgconfig
# Tests
buildPackages.git
buildPackages.mercurial
buildPackages.jq
];
buildDeps =
[ curl
bzip2 xz brotli zlib editline
openssl sqlite
libarchive
boost
nlohmann_json
lowdown
gmock
]
++ lib.optionals stdenv.isLinux [libseccomp utillinuxMinimal]
++ lib.optional (stdenv.isLinux || stdenv.isDarwin) libsodium;
awsDeps = lib.optional (stdenv.isLinux || stdenv.isDarwin)
(aws-sdk-cpp.override {
apis = ["s3" "transfer"];
customMemoryManagement = false;
});
propagatedDeps =
[ (boehmgc.override { enableLargeConfig = true; })
];
perlDeps =
[ perl
perlPackages.DBDSQLite
];
};
in {
# A Nixpkgs overlay that overrides the 'nix' and
# 'nix.perl-bindings' packages.
overlay = final: prev: {
nix = with final; with commonDeps pkgs; stdenv.mkDerivation {
name = "nix-${version}";
inherit version;
src = self;
VERSION_SUFFIX = versionSuffix;
outputs = [ "out" "dev" "doc" ];
nativeBuildInputs = nativeBuildDeps;
buildInputs = buildDeps ++ awsDeps;
propagatedBuildInputs = propagatedDeps;
preConfigure =
''
# Copy libboost_context so we don't get all of Boost in our closure.
# https://github.com/NixOS/nixpkgs/issues/45462
mkdir -p $out/lib
cp -pd ${boost}/lib/{libboost_context*,libboost_thread*,libboost_system*} $out/lib
rm -f $out/lib/*.a
${lib.optionalString stdenv.isLinux ''
chmod u+w $out/lib/*.so.*
patchelf --set-rpath $out/lib:${stdenv.cc.cc.lib}/lib $out/lib/libboost_thread.so.*
''}
'';
configureFlags = configureFlags ++
[ "--sysconfdir=/etc" ];
enableParallelBuilding = true;
makeFlags = "profiledir=$(out)/etc/profile.d PRECOMPILE_HEADERS=1";
doCheck = true;
installFlags = "sysconfdir=$(out)/etc";
postInstall = ''
mkdir -p $doc/nix-support
echo "doc manual $doc/share/doc/nix/manual" >> $doc/nix-support/hydra-build-products
'';
doInstallCheck = true;
installCheckFlags = "sysconfdir=$(out)/etc";
separateDebugInfo = true;
passthru.perl-bindings = with final; stdenv.mkDerivation {
name = "nix-perl-${version}";
src = self;
nativeBuildInputs =
[ buildPackages.autoconf-archive
buildPackages.autoreconfHook
buildPackages.pkgconfig
];
buildInputs =
[ nix
curl
bzip2
xz
pkgs.perl
boost
nlohmann_json
]
++ lib.optional (stdenv.isLinux || stdenv.isDarwin) libsodium;
configureFlags = ''
--with-dbi=${perlPackages.DBI}/${pkgs.perl.libPrefix}
--with-dbd-sqlite=${perlPackages.DBDSQLite}/${pkgs.perl.libPrefix}
'';
enableParallelBuilding = true;
postUnpack = "sourceRoot=$sourceRoot/perl";
};
};
lowdown = with final; stdenv.mkDerivation rec {
name = "lowdown-0.8.0";
src = fetchurl {
url = "https://kristaps.bsd.lv/lowdown/snapshots/${name}.tar.gz";
hash = "sha512-U9WeGoInT9vrawwa57t6u9dEdRge4/P+0wLxmQyOL9nhzOEUU2FRz2Be9H0dCjYE7p2v3vCXIYk40M+jjULATw==";
};
#src = lowdown-src;
outputs = [ "out" "bin" "dev" ];
nativeBuildInputs = [ which ];
configurePhase =
''
./configure \
PREFIX=${placeholder "dev"} \
BINDIR=${placeholder "bin"}/bin
'';
};
};
hydraJobs = {
# Binary package for various platforms.
build = nixpkgs.lib.genAttrs systems (system: self.packages.${system}.nix);
buildStatic = nixpkgs.lib.genAttrs linux64BitSystems (system: self.packages.${system}.nix-static);
# Perl bindings for various platforms.
perlBindings = nixpkgs.lib.genAttrs systems (system: self.packages.${system}.nix.perl-bindings);
# Binary tarball for various platforms, containing a Nix store
# with the closure of 'nix' package, and the second half of
# the installation script.
binaryTarball = nixpkgs.lib.genAttrs systems (system:
with nixpkgsFor.${system};
let
installerClosureInfo = closureInfo { rootPaths = [ nix cacert ]; };
in
runCommand "nix-binary-tarball-${version}"
{ #nativeBuildInputs = lib.optional (system != "aarch64-linux") shellcheck;
meta.description = "Distribution-independent Nix bootstrap binaries for ${system}";
}
''
cp ${installerClosureInfo}/registration $TMPDIR/reginfo
cp ${./scripts/create-darwin-volume.sh} $TMPDIR/create-darwin-volume.sh
substitute ${./scripts/install-nix-from-closure.sh} $TMPDIR/install \
--subst-var-by nix ${nix} \
--subst-var-by cacert ${cacert}
substitute ${./scripts/install-darwin-multi-user.sh} $TMPDIR/install-darwin-multi-user.sh \
--subst-var-by nix ${nix} \
--subst-var-by cacert ${cacert}
substitute ${./scripts/install-systemd-multi-user.sh} $TMPDIR/install-systemd-multi-user.sh \
--subst-var-by nix ${nix} \
--subst-var-by cacert ${cacert}
substitute ${./scripts/install-multi-user.sh} $TMPDIR/install-multi-user \
--subst-var-by nix ${nix} \
--subst-var-by cacert ${cacert}
if type -p shellcheck; then
# SC1090: Don't worry about not being able to find
# $nix/etc/profile.d/nix.sh
shellcheck --exclude SC1090 $TMPDIR/install
shellcheck $TMPDIR/create-darwin-volume.sh
shellcheck $TMPDIR/install-darwin-multi-user.sh
shellcheck $TMPDIR/install-systemd-multi-user.sh
# SC1091: Don't panic about not being able to source
# /etc/profile
# SC2002: Ignore "useless cat" "error", when loading
# .reginfo, as the cat is a much cleaner
# implementation, even though it is "useless"
# SC2116: Allow ROOT_HOME=$(echo ~root) for resolving
# root's home directory
shellcheck --external-sources \
--exclude SC1091,SC2002,SC2116 $TMPDIR/install-multi-user
fi
chmod +x $TMPDIR/install
chmod +x $TMPDIR/create-darwin-volume.sh
chmod +x $TMPDIR/install-darwin-multi-user.sh
chmod +x $TMPDIR/install-systemd-multi-user.sh
chmod +x $TMPDIR/install-multi-user
dir=nix-${version}-${system}
fn=$out/$dir.tar.xz
mkdir -p $out/nix-support
echo "file binary-dist $fn" >> $out/nix-support/hydra-build-products
tar cvfJ $fn \
--owner=0 --group=0 --mode=u+rw,uga+r \
--absolute-names \
--hard-dereference \
--transform "s,$TMPDIR/install,$dir/install," \
--transform "s,$TMPDIR/create-darwin-volume.sh,$dir/create-darwin-volume.sh," \
--transform "s,$TMPDIR/reginfo,$dir/.reginfo," \
--transform "s,$NIX_STORE,$dir/store,S" \
$TMPDIR/install \
$TMPDIR/create-darwin-volume.sh \
$TMPDIR/install-darwin-multi-user.sh \
$TMPDIR/install-systemd-multi-user.sh \
$TMPDIR/install-multi-user \
$TMPDIR/reginfo \
$(cat ${installerClosureInfo}/store-paths)
'');
# The first half of the installation script. This is uploaded
# to https://nixos.org/nix/install. It downloads the binary
# tarball for the user's system and calls the second half of the
# installation script.
installerScript =
with nixpkgsFor.x86_64-linux;
runCommand "installer-script"
{ buildInputs = [ nix ];
}
''
mkdir -p $out/nix-support
# Converts /nix/store/50p3qk8kka9dl6wyq40vydq945k0j3kv-nix-2.4pre20201102_550e11f/bin/nix
# To 50p3qk8kka9dl6wyq40vydq945k0j3kv/bin/nix
tarballPath() {
# Remove the store prefix
local path=''${1#${builtins.storeDir}/}
# Get the path relative to the derivation root
local rest=''${path#*/}
# Get the derivation hash
local drvHash=''${path%%-*}
echo "$drvHash/$rest"
}
substitute ${./scripts/install.in} $out/install \
${pkgs.lib.concatMapStrings
(system:
'' \
--replace '@tarballHash_${system}@' $(nix --experimental-features nix-command hash-file --base16 --type sha256 ${self.hydraJobs.binaryTarball.${system}}/*.tar.xz) \
--replace '@tarballPath_${system}@' $(tarballPath ${self.hydraJobs.binaryTarball.${system}}/*.tar.xz) \
''
)
[ "x86_64-linux" "i686-linux" "x86_64-darwin" "aarch64-linux" ]
} \
--replace '@nixVersion@' ${version}
echo "file installer $out/install" >> $out/nix-support/hydra-build-products
'';
# Line coverage analysis.
coverage =
with nixpkgsFor.x86_64-linux;
with commonDeps pkgs;
releaseTools.coverageAnalysis {
name = "nix-coverage-${version}";
src = self;
enableParallelBuilding = true;
nativeBuildInputs = nativeBuildDeps;
buildInputs = buildDeps ++ propagatedDeps ++ awsDeps;
dontInstall = false;
doInstallCheck = true;
lcovFilter = [ "*/boost/*" "*-tab.*" ];
# We call `dot', and even though we just use it to
# syntax-check generated dot files, it still requires some
# fonts. So provide those.
FONTCONFIG_FILE = texFunctions.fontsConf;
};
# System tests.
tests.remoteBuilds = import ./tests/remote-builds.nix {
system = "x86_64-linux";
inherit nixpkgs;
inherit (self) overlay;
};
tests.nix-copy-closure = import ./tests/nix-copy-closure.nix {
system = "x86_64-linux";
inherit nixpkgs;
inherit (self) overlay;
};
tests.githubFlakes = (import ./tests/github-flakes.nix rec {
system = "x86_64-linux";
inherit nixpkgs;
inherit (self) overlay;
});
tests.setuid = nixpkgs.lib.genAttrs
["i686-linux" "x86_64-linux"]
(system:
import ./tests/setuid.nix rec {
inherit nixpkgs system;
inherit (self) overlay;
});
/*
# Check whether we can still evaluate all of Nixpkgs.
tests.evalNixpkgs =
import (nixpkgs + "/pkgs/top-level/make-tarball.nix") {
# FIXME: fix pkgs/top-level/make-tarball.nix in NixOS to not require a revCount.
inherit nixpkgs;
pkgs = nixpkgsFor.x86_64-linux;
officialRelease = false;
};
# Check whether we can still evaluate NixOS.
tests.evalNixOS =
with nixpkgsFor.x86_64-linux;
runCommand "eval-nixos" { buildInputs = [ nix ]; }
''
export NIX_STATE_DIR=$TMPDIR
nix-instantiate ${nixpkgs}/nixos/release-combined.nix -A tested --dry-run \
--arg nixpkgs '{ outPath = ${nixpkgs}; revCount = 123; shortRev = "abcdefgh"; }'
touch $out
'';
*/
};
checks = forAllSystems (system: {
binaryTarball = self.hydraJobs.binaryTarball.${system};
perlBindings = self.hydraJobs.perlBindings.${system};
});
packages = forAllSystems (system: {
inherit (nixpkgsFor.${system}) nix;
} // nixpkgs.lib.optionalAttrs (builtins.elem system linux64BitSystems) {
nix-static = let
nixpkgs = nixpkgsFor.${system}.pkgsStatic;
in with commonDeps nixpkgs; nixpkgs.stdenv.mkDerivation {
name = "nix-${version}";
src = self;
VERSION_SUFFIX = versionSuffix;
outputs = [ "out" "dev" "doc" ];
nativeBuildInputs = nativeBuildDeps;
buildInputs = buildDeps ++ propagatedDeps;
configureFlags = [ "--sysconfdir=/etc" ];
enableParallelBuilding = true;
makeFlags = "profiledir=$(out)/etc/profile.d";
doCheck = true;
installFlags = "sysconfdir=$(out)/etc";
postInstall = ''
mkdir -p $doc/nix-support
echo "doc manual $doc/share/doc/nix/manual" >> $doc/nix-support/hydra-build-products
mkdir -p $out/nix-support
echo "file binary-dist $out/bin/nix" >> $out/nix-support/hydra-build-products
'';
doInstallCheck = true;
installCheckFlags = "sysconfdir=$(out)/etc";
stripAllList = ["bin"];
};
});
defaultPackage = forAllSystems (system: self.packages.${system}.nix);
devShell = forAllSystems (system:
with nixpkgsFor.${system};
with commonDeps pkgs;
stdenv.mkDerivation {
name = "nix";
outputs = [ "out" "dev" "doc" ];
nativeBuildInputs = nativeBuildDeps;
buildInputs = buildDeps ++ propagatedDeps ++ awsDeps ++ perlDeps;
inherit configureFlags;
enableParallelBuilding = true;
installFlags = "sysconfdir=$(out)/etc";
shellHook =
''
PATH=$prefix/bin:$PATH
unset PYTHONPATH
export MANPATH=$out/share/man:$MANPATH
'';
});
};
}