geval/default.nix
Filip Gralinski 4f38ecada9 Fix nix script
(Because new extra dependency was added.)
2020-01-04 21:58:32 +01:00

72 lines
3.0 KiB
Nix

# Run using:
#
# $(nix-build --no-link -A fullBuildScript)
# also the following might be needed:
# sysctl kernel.unprivileged_userns_clone=1
{
stack2nix-output-path ? "custom-stack2nix-output.nix",
}:
let
cabalPackageName = "geval";
compiler = "ghc844"; # matching stack.yaml
# Pin static-haskell-nix version.
static-haskell-nix =
if builtins.pathExists ../.in-static-haskell-nix
then toString ../. # for the case that we're in static-haskell-nix itself, so that CI always builds the latest version.
# Update this hash to use a different `static-haskell-nix` version:
else fetchTarball https://github.com/nh2/static-haskell-nix/archive/c49fbe730c49730d9568a9fec36f25f4580739f2.tar.gz;
# Pin nixpkgs version
# By default to the one `static-haskell-nix` provides, but you may also give
# your own as long as it has the necessary patches, using e.g.
# pkgs = import (fetchTarball https://github.com/nh2/nixpkgs/archive/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa123.tar.gz) {};
pkgs = import "${static-haskell-nix}/nixpkgs.nix";
stack2nix-script = import "${static-haskell-nix}/static-stack2nix-builder/stack2nix-script.nix" {
inherit pkgs;
stack-project-dir = toString ./.; # where stack.yaml is
hackageSnapshot = "2020-01-03T00:00:00Z"; # pins e.g. extra-deps without hashes or revisions
};
static-stack2nix-builder = import "${static-haskell-nix}/static-stack2nix-builder/default.nix" {
normalPkgs = pkgs;
inherit cabalPackageName compiler stack2nix-output-path;
# disableOptimization = true; # for compile speed
};
static_package = static-stack2nix-builder.static_package.overrideAttrs (old: {
# Hack on static libraries the package needs that are, for reasons not yet
# clear, not propagated automatically via the `cairo` Haskell library and
# its `pkgconfig-depends` flag.
# See https://github.com/nh2/static-haskell-nix/issues/47.
# It's annoying that we have to do this with NIX_LDFLAGS, which is the
# lowest-level hack via which one can insert linker flags, but we haven't
# found higher level entry points yet that work.
# Cabal's `--ld-options` might be one, but it doesn't work yet because
# of GHC not passing them on in the correct order:
# https://gitlab.haskell.org/ghc/ghc/issues/17071
preConfigure = ''
${old.preConfigure or ""}
export NIX_LDFLAGS="-lcairo -lfontconfig -lfreetype -lpixman-1 -lexpat -lpng $NIX_LDFLAGS"
'';
});
# Full invocation, including pinning `nix` version itself.
fullBuildScript = pkgs.writeScript "stack2nix-and-build-script.sh" ''
#!/usr/bin/env bash
set -eu -o pipefail
STACK2NIX_OUTPUT_PATH=$(${stack2nix-script})
export NIX_PATH=nixpkgs=${pkgs.path}
${pkgs.nix}/bin/nix-build --no-link -A static_package --argstr stack2nix-output-path "$STACK2NIX_OUTPUT_PATH" "$@"
'';
in
{
inherit static_package;
inherit fullBuildScript;
# For debugging:
inherit stack2nix-script;
inherit static-stack2nix-builder;
}