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Use stack's nix support (#168)

* Add stack --nix support

* Update README for nix shell
This commit is contained in:
Nicolas Mattia 2018-05-25 04:33:15 +02:00 committed by Greg Steuck
parent b063cccc40
commit 8e1d85b5e5
6 changed files with 98 additions and 69 deletions

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@ -108,11 +108,14 @@ After running the script to install system dependencies, build the project with
## Build on NixOS
`tools/userchroot.nix` expression contains definitions to open
chroot-environment containing necessary dependencies. Type
The `shell.nix` provides an environment containing the necessary
dependencies. To build, run:
$ nix-shell tools/userchroot.nix
$ stack build --system-ghc
$ stack --nix build
or alternatively you can run
$ nix-shell
to enter the environment and build the project. Note, that it is an emulation
of common Linux environment rather than full-featured Nix package expression.

6
nix/src.json Normal file
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@ -0,0 +1,6 @@
{
"owner": "NixOS",
"repo": "nixpkgs",
"rev": "729da53a147eda1a1678a313754fcda3a8791279",
"sha256": "17l19rbhb3wdrrcyjgq34bk3p658jbldzxp9q1scdvrvz0g99psb"
}

26
nix/update Executable file
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@ -0,0 +1,26 @@
#!/usr/bin/env nix-shell
#!nix-shell -i bash -p bash nix curl jq
# vim: filetype=sh
# Updates the nixpkgs.json to the latest release
# See https://gist.github.com/zimbatm/de5350245874361762b6a4dfe5366530
set -euo pipefail
cd "$(dirname "$0")" || exit 1
branch=release-17.09
owner=NixOS
repo=nixpkgs
rev=$(curl -sfL https://api.github.com/repos/$owner/$repo/git/refs/heads/$branch | jq -r .object.sha)
url=https://github.com/$owner/$repo/archive/$rev.tar.gz
release_sha256=$(nix-prefetch-url --unpack "$url")
cat <<NIXPKGS | tee src.json
{
"owner": "$owner",
"repo": "$repo",
"rev": "$rev",
"sha256": "$release_sha256"
}
NIXPKGS

55
shell.nix Normal file
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@ -0,0 +1,55 @@
{ghc ? null }:
let
# Use pinned packages
_nixpkgs = import <nixpkgs> {};
nixpkgs = _nixpkgs.fetchFromGitHub (_nixpkgs.lib.importJSON ./nix/src.json);
pkgs = import nixpkgs {};
# Either use specified GHC or use GHC 8.2.2 (which we need for LTS 11.9)
myghc = if isNull ghc then pkgs.haskell.compiler.ghc822 else ghc;
# Fetch tensorflow library
tensorflow-c = pkgs.stdenv.mkDerivation {
name = "tensorflow-c";
src = pkgs.fetchurl {
url = "https://storage.googleapis.com/tensorflow/libtensorflow/libtensorflow-cpu-linux-x86_64-1.8.0.tar.gz";
sha256 = "0qzy15rc3x961cyi3bqnygrcnw4x69r28xkwhpwrv1r0gi6k73ha";
};
# Patch library to use our libc, libstdc++ and others
buildCommand = ''
. $stdenv/setup
mkdir -pv $out
tar -C $out -xzf $src
chmod +w $out/lib/libtensorflow.so
${pkgs.patchelf}/bin/patchelf --set-rpath "${pkgs.stdenv.cc.libc}/lib:${pkgs.stdenv.cc.cc.lib}/lib" $out/lib/libtensorflow.so
chmod -w $out/lib/libtensorflow.so
'';
};
# Wrapped stack executable that uses the nix-provided GHC
stack = pkgs.stdenv.mkDerivation {
name = "stack-system-ghc";
builder = pkgs.writeScript "stack" ''
source $stdenv/setup
mkdir -p $out/bin
makeWrapper ${pkgs.stack}/bin/stack $out/bin/stack \
--add-flags --system-ghc
'';
buildInputs = [ pkgs.makeWrapper ];
};
in
pkgs.haskell.lib.buildStackProject {
ghc = myghc;
stack = stack;
name = "tf-env";
buildInputs =
[
pkgs.snappy
pkgs.zlib
pkgs.protobuf3_3
tensorflow-c
stack
];
}

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@ -29,3 +29,7 @@ extra-lib-dirs:
- /usr/local/lib
extra-include-dirs:
- /usr/local/include
nix:
enable: false
shell-file: shell.nix

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@ -1,65 +0,0 @@
#
# This script is provided by @grwlf (grwlf@gmail.com) and is supported on best
# effort basis. TensorFlow development team does not regularly test this script
# and can't answer any questions about it.
#
{ pkgs ? import <nixpkgs> {} }:
with pkgs;
let
tensorflow-c = stdenv.mkDerivation {
name = "tensorflow-c";
src = fetchurl {
url = "https://storage.googleapis.com/tensorflow/libtensorflow/libtensorflow-cpu-linux-x86_64-1.8.0.tar.gz";
sha256 = "0a8e334d7c20879df9857c762472329d70cbf2f316af113d0b26f5c17209fe63";
};
buildCommand = ''
. $stdenv/setup
mkdir -pv $out
tar -C $out -xzf $src
'';
};
fhs = pkgs.buildFHSUserEnv {
name = "fhs";
targetPkgs = pkgs:
with pkgs.python3Packages;
with pkgs.haskellPackages;
with pkgs;
assert stack.version >= "1.4";
assert ghc.version >= "8";
[
snappy
snappy.dev
protobuf3_2
stack
ghc
iana-etc
pkgs.zlib
pkgs.zlib.dev
tensorflow-c
gcc
gdb
];
runScript = "bash";
profile = ''
export USE_CCACHE=1
export LIBRARY_PATH=/usr/lib64
export LD_LIBRARY_PATH=$(pwd):/usr/lib64
export ACLOCAL_PATH=/usr/share/aclocal
export LANG=C
export LC_ALL=en_US.utf-8
export PATH="$HOME/.local/bin:$PATH"
'';
};
in
stdenv.mkDerivation {
name = fhs.name + "-env";
nativeBuildInputs = [ fhs ];
shellHook = "exec fhs";
}