nixpkgs/pkgs/development/web/nodejs/build-node-package.nix
Jaka Hudoklin 7ff4ffd998 nodePackages: add support for recursive dependencies
This is a drop-in replacement that handles nodejs recursive dependencies by
propagating already visited nodejs packages and creating shims for recursive
ones. This implementation handles both, new and old npm2nix output format.
2014-09-09 22:46:11 +02:00

147 lines
4.9 KiB
Nix

{ stdenv, runCommand, nodejs, neededNatives}:
args @ { name, src, deps ? {}, peerDependencies ? [], flags ? [], preShellHook ? "", postShellHook ? "", resolvedDeps ? {}, bin ? null, ... }:
with stdenv.lib;
let
npmFlags = concatStringsSep " " (map (v: "--${v}") flags);
sources = runCommand "node-sources" {} ''
tar --no-same-owner --no-same-permissions -xf ${nodejs.src}
mv *node* $out
'';
# Convert deps to attribute set
attrDeps = if isAttrs deps then deps else
(listToAttrs (map (dep: nameValuePair dep.name dep) deps));
# All required node modules, without already resolved dependencies
requiredDeps = removeAttrs attrDeps (attrNames resolvedDeps);
# Recursive dependencies that we want to avoid with shim creation
recursiveDeps = removeAttrs attrDeps (attrNames requiredDeps);
peerDeps = listToAttrs (concatMap (dep: map (name: {
inherit name;
value = dep;
}) (filter (nm: !(elem nm (args.passthru.names or []))) dep.names)) (peerDependencies));
self = let
# Pass resolved dependencies to dependencies of this package
deps = map (
dep: dep.override {
resolvedDeps = resolvedDeps // { "${name}" = self; };
}
) (attrValues requiredDeps);
in stdenv.mkDerivation ({
unpackPhase = "true";
inherit src;
configurePhase = ''
runHook preConfigure
mkdir node_modules
# Symlink dependencies for node modules
${concatStrings (concatMap (dep: map (name: ''
ln -sv ${dep}/lib/node_modules/${name} node_modules/
'') dep.names) deps)}
# Symlink peer dependencies
${concatStrings (mapAttrsToList (name: dep: ''
ln -sv ${dep}/lib/node_modules/${name} node_modules/
'') peerDeps)}
# Create shims for recursive dependenceies
${concatStrings (concatMap (dep: map (name: ''
mkdir -p node_modules/${name}
cat > node_modules/${name}/package.json <<EOF
{
"name": "${name}",
"version": "${(builtins.parseDrvName dep.name).version}"
}
EOF
'') dep.names) (attrValues recursiveDeps))}
export HOME=$(pwd)
runHook postConfigure
'';
buildPhase = ''
runHook preBuild
npm --registry http://www.example.com --nodedir=${sources} install $src ${npmFlags}
runHook postBuild
'';
installPhase = ''
runHook preInstall
# Remove shims
${concatStrings (concatMap (dep: map (name: ''
rm node_modules/${name}/package.json
rmdir node_modules/${name}
'') dep.names) (attrValues recursiveDeps))}
mkdir -p $out/lib/node_modules
${concatStrings (map (name: ''
mv node_modules/${name} $out/lib/node_modules
rm -fR $out/lib/node_modules/${name}/node_modules
ln -sv $out/.dependent-node-modules $out/lib/node_modules/${name}/node_modules
if [ -e "$out/lib/node_modules/${name}/man" ]; then
mkdir -p $out/share
for dir in "$out/lib/node_modules/${name}/man/"*; do
mkdir -p $out/share/man/$(basename "$dir")
for page in "$dir"/*; do
ln -sv $page $out/share/man/$(basename "$dir")
done
done
fi
'') args.passthru.names)}
${concatStrings (mapAttrsToList (name: dep: ''
mv node_modules/${name} $out/lib/node_modules
'') peerDeps)}
mv node_modules/.bin $out/lib/node_modules 2>/dev/null || true
mv node_modules $out/.dependent-node-modules
if [ -d "$out/lib/node_modules/.bin" ]; then
ln -sv $out/lib/node_modules/.bin $out/bin
node=`type -p node`
coffee=`type -p coffee || true`
find -L $out/lib/node_modules/.bin/* -type f -print0 | \
xargs -0 sed --follow-symlinks -i \
-e 's@#!/usr/bin/env node@#!'"$node"'@' \
-e 's@#!/usr/bin/env coffee@#!'"$coffee"'@' \
-e 's@#!/.*/node@#!'"$node"'@' \
-e 's@#!/.*/coffee@#!'"$coffee"'@'
fi
runHook postInstall
'';
preFixup = concatStringsSep "\n" (map (src: ''
find $out -type f -print0 | xargs -0 sed -i 's|${src}|${src.name}|g'
'') src);
shellHook = ''
${preShellHook}
export PATH=${nodejs}/bin:$(pwd)/node_modules/.bin:$PATH
mkdir -p node_modules
${concatStrings (concatMap (dep: map (name: ''
ln -sfv ${dep}/lib/node_modules/${name} node_modules/
'') dep.names) deps)}
${postShellHook}
'';
} // (filterAttrs (n: v: n != "deps" && n != "resolvedDeps") args) // {
name = "${
if bin == true then "bin-" else if bin == false then "node-" else ""
}${name}";
# Run the node setup hook when this package is a build input
propagatedNativeBuildInputs = (args.propagatedNativeBuildInputs or []) ++ [ nodejs ];
# Make buildNodePackage useful with --run-env
nativeBuildInputs = (args.nativeBuildInputs or []) ++ deps ++ peerDependencies ++ neededNatives;
});
in self