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|
/* This is the library of nix builders. Some rules to follow:
- Keep this code as minimal as possible. I'd rather write Haskell than Nix,
wouldn't you?
- Try to reuse as much upstream Nix as possible.
*/
{ analysisJSON, bild }:
with bild;
let
analysis = builtins.fromJSON analysisJSON;
# common bash functions for the builder
commonBash = builtins.toFile "common.bash" ''
# Check that a command succeeds, fail and log if not.
function check {
$@ || { echo "fail: $name: $3"; exit 1; }
}
'';
build = _: target:
let
name = target.out;
root = builtins.getEnv "CODEROOT";
mainModule = target.mainModule;
compileLine = lib.strings.concatStringsSep " "
([ target.compiler ] ++ target.compilerFlags);
allSources = target.srcs ++ [ target.quapath ];
isEmpty = x: x == null || x == [ ];
skip = [ "_" ".direnv" ];
filter = file: type:
if lib.lists.elem (builtins.baseNameOf file) skip then
false
# TODO: this means any new directory will cause a rebuild. this bad. i
# should recurse into the directory and match against the srcs. for now I
# just use preBuild to delete empty dirs
else if type == "directory" then
true
else if type == "regular" then
lib.trivial.pipe file [
(f: lib.strings.removePrefix "${root}/" f)
(f: lib.lists.elem f allSources)
]
else
false;
# remove empty directories, leftover from the src filter
preBuild = "find . -type d -empty -delete";
src = lib.sources.cleanSourceWith {
inherit filter;
src = lib.sources.cleanSource root;
};
langdeps_ = if isEmpty target.langdeps then
[ ]
else
lib.attrsets.attrVals target.langdeps (lib.attrsets.getAttrFromPath
(lib.strings.splitString "." target.packageSet) bild);
sysdeps_ = if isEmpty target.sysdeps then
[ ]
else
lib.attrsets.attrVals target.sysdeps pkgs;
rundeps_ = if isEmpty target.rundeps then
[ ]
else
lib.attrsets.attrVals target.rundeps pkgs;
CODEROOT = ".";
builders = {
base = stdenv.mkDerivation rec {
inherit name src CODEROOT preBuild;
buildInputs = langdeps_ ++ sysdeps_;
installPhase = "install -D ${name} $out/bin/${name}";
buildPhase = compileLine;
};
haskell = stdenv.mkDerivation rec {
inherit name src CODEROOT preBuild;
nativeBuildInputs = [ makeWrapper ];
buildInputs = sysdeps_ ++ [
(haskell.ghcWith (p: (lib.attrsets.attrVals target.langdeps p)))
];
buildPhase = compileLine;
installPhase = ''
install -D ${name} $out/bin/${name}
wrapProgram $out/bin/${name} \
--prefix PATH : ${lib.makeBinPath rundeps_}
'';
};
c = stdenv.mkDerivation rec {
inherit name src CODEROOT preBuild;
buildInputs = langdeps_ ++ sysdeps_;
installPhase = "install -D ${name} $out/bin/${name}";
buildPhase = lib.strings.concatStringsSep " " [
compileLine
(if isEmpty langdeps_ then
""
else
"$(pkg-config --cflags ${
lib.strings.concatStringsSep " " target.langdeps
})")
(if isEmpty sysdeps_ then
""
else
"$(pkg-config --libs ${
lib.strings.concatStringsSep " " target.sysdeps
})")
];
};
python = python.buildPythonApplication rec {
inherit name src CODEROOT;
nativeBuildInputs = [ makeWrapper ];
propagatedBuildInputs = langdeps_ ++ sysdeps_ ++ rundeps_;
buildInputs = sysdeps_;
nativeCheckInputs = [ pkgs.ruff python.packages.mypy ];
checkPhase = ''
. ${commonBash}
cp ${../../pyproject.toml} ./pyproject.toml
check ruff format --exclude 'setup.py' --check .
check ruff check --exclude 'setup.py' --exclude '__init__.py' .
touch ./py.typed
check python -m mypy \
--explicit-package-bases \
--no-error-summary \
--exclude 'setup\.py$' \
.
'';
installCheck = ''
. ${commonBash}
check python -m ${mainModule} test
'';
preBuild = ''
# remove empty directories, leftover from the src filter
find . -type d -empty -delete
# initialize remaining dirs as python modules
find . -type d -exec touch {}/__init__.py \;
# generate a minimal setup.py
cat > setup.py << EOF
from setuptools import find_packages, setup
setup(
name="${name}",
entry_points={"console_scripts":["${name} = ${mainModule}:main"]},
version="0.0.0",
url="git://simatime.com/omni.git",
author="dev",
author_email="dev@simatime.com",
description="nil",
packages=find_packages(),
install_requires=[],
)
EOF
'';
pythonImportsCheck = [ mainModule ]; # sanity check
};
};
in builders.${target.builder};
# the bild caller gives us the Analysis type, which is a hashmap, but i need to
# return a single drv, so just take the first one for now. ideally i would only
# pass Target, one at a time, (perhaps parallelized in haskell land) and then i
# wouldn't need all of this let nesting
in builtins.head (lib.attrsets.mapAttrsToList build analysis)
|
