281 lines
8.9 KiB
Nix
281 lines
8.9 KiB
Nix
{ stdenv, runCommand, nodejs, neededNatives}:
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{
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name, src,
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# Node package name
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pkgName ? (builtins.parseDrvName name).name,
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# List or attribute set of dependencies
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deps ? {},
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# List or attribute set of peer depencies
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peerDependencies ? [],
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# Whether package is binary or library
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bin ? null,
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# Flags passed to npm install
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flags ? [],
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# Command to be run before shell hook
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preShellHook ? "",
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# Command to be run after shell hook
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postShellHook ? "",
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# Attribute set of already resolved deps (internal),
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# for avoiding infinite recursion
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resolvedDeps ? {},
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...
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} @ args:
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with stdenv.lib;
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let
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npmFlags = concatStringsSep " " (map (v: "--${v}") flags);
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sources = runCommand "node-sources" {} ''
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tar --no-same-owner --no-same-permissions -xf ${nodejs.src}
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mv *node* $out
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'';
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# Convert deps to attribute set
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attrDeps = if isAttrs deps then deps else
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(listToAttrs (map (dep: nameValuePair dep.name dep) deps));
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# All required node modules, without already resolved dependencies
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requiredDeps = removeAttrs attrDeps (attrNames resolvedDeps);
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# Recursive dependencies that we want to avoid with shim creation
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recursiveDeps = removeAttrs attrDeps (attrNames requiredDeps);
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peerDeps = filter (dep: dep.pkgName != pkgName) peerDependencies;
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self = let
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# Pass resolved dependencies to dependencies of this package
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deps = map (
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dep: dep.override {
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resolvedDeps = resolvedDeps // { "${name}" = self; };
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}
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) (attrValues requiredDeps);
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patchShebangs = dir: ''
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node=`type -p node`
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coffee=`type -p coffee || true`
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find -L ${dir} -type f -print0 | xargs -0 grep -Il . | \
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xargs sed --follow-symlinks -i \
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-e 's@#!/usr/bin/env node@#!'"$node"'@' \
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-e 's@#!/usr/bin/env coffee@#!'"$coffee"'@' \
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-e 's@#!/.*/node@#!'"$node"'@' \
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-e 's@#!/.*/coffee@#!'"$coffee"'@' || true
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'';
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in stdenv.mkDerivation ({
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inherit src;
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configurePhase = ''
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runHook preConfigure
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${patchShebangs "./"}
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# Some version specifiers (latest, unstable, URLs, file paths) force NPM
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# to make remote connections or consult paths outside the Nix store.
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# The following JavaScript replaces these by * to prevent that:
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# Also some packages require a specific npm version because npm may
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# resovle dependencies differently, but npm is not used by Nix for dependency
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# reslution, so these requirements are dropped.
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(
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cat <<EOF
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var fs = require('fs');
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var url = require('url');
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/*
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* Replaces an impure version specification by *
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*/
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function replaceImpureVersionSpec(versionSpec) {
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var parsedUrl = url.parse(versionSpec);
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if(versionSpec == "latest" || versionSpec == "unstable" ||
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versionSpec.substr(0, 2) == ".." || dependency.substr(0, 2) == "./" || dependency.substr(0, 2) == "~/" || dependency.substr(0, 1) == '/' || /^[^/]+\/[^/]+$/.test(versionSpec))
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return '*';
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else if(parsedUrl.protocol == "git:" || parsedUrl.protocol == "git+ssh:" || parsedUrl.protocol == "git+http:" || parsedUrl.protocol == "git+https:" ||
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parsedUrl.protocol == "http:" || parsedUrl.protocol == "https:")
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return '*';
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else
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return versionSpec;
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}
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var packageObj = JSON.parse(fs.readFileSync('./package.json'));
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/* Replace dependencies */
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if(packageObj.dependencies !== undefined) {
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for(var dependency in packageObj.dependencies) {
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var versionSpec = packageObj.dependencies[dependency];
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packageObj.dependencies[dependency] = replaceImpureVersionSpec(versionSpec);
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}
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}
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/* Replace development dependencies */
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if(packageObj.devDependencies !== undefined) {
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for(var dependency in packageObj.devDependencies) {
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var versionSpec = packageObj.devDependencies[dependency];
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packageObj.devDependencies[dependency] = replaceImpureVersionSpec(versionSpec);
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}
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}
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/* Replace optional dependencies */
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if(packageObj.optionalDependencies !== undefined) {
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for(var dependency in packageObj.optionalDependencies) {
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var versionSpec = packageObj.optionalDependencies[dependency];
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packageObj.optionalDependencies[dependency] = replaceImpureVersionSpec(versionSpec);
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}
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}
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/* Ignore npm version requirement */
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if(packageObj.engines) {
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delete packageObj.engines.npm;
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}
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/* Write the fixed JSON file */
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fs.writeFileSync("package.json", JSON.stringify(packageObj));
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EOF
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) | node
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# We do not handle shrinkwraps yet
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rm npm-shrinkwrap.json 2>/dev/null || true
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mkdir build-dir
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(
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cd build-dir
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mkdir node_modules
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# Symlink or copy dependencies for node modules
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# copy is needed if dependency has recursive dependencies,
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# because node can't follow symlinks while resolving recursive deps.
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${concatMapStrings (dep:
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if dep.recursiveDeps == [] then ''
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ln -sv ${dep}/lib/node_modules/${dep.pkgName} node_modules/
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'' else ''
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cp -R ${dep}/lib/node_modules/${dep.pkgName} node_modules/
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''
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) deps}
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# Symlink peer dependencies
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${concatMapStrings (dep: ''
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ln -sv ${dep}/lib/node_modules/${dep.pkgName} node_modules/
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'') peerDeps}
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# Create shims for recursive dependenceies
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${concatMapStrings (dep: ''
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mkdir -p node_modules/${dep.pkgName}
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cat > node_modules/${dep.pkgName}/package.json <<EOF
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{
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"name": "${dep.pkgName}",
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"version": "${getVersion dep}"
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}
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EOF
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'') (attrValues recursiveDeps)}
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)
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export HOME=$PWD/build-dir
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runHook postConfigure
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'';
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buildPhase = ''
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runHook preBuild
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# If source was a file, repackage it, so npm pre/post publish hooks are not triggered,
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if [[ -f $src ]]; then
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tar --exclude='build-dir' -czf build-dir/package.tgz ./
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export src=$HOME/package.tgz
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else
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export src=$PWD
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fi
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# Install package
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(cd $HOME && npm --registry http://www.example.com --nodedir=${sources} install $src ${npmFlags})
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runHook postBuild
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'';
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installPhase = ''
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runHook preInstall
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(
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cd $HOME
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# Remove shims
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${concatMapStrings (dep: ''
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rm node_modules/${dep.pkgName}/package.json
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rmdir node_modules/${dep.pkgName}
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'') (attrValues recursiveDeps)}
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mkdir -p $out/lib/node_modules
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# Install manual
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mv node_modules/${pkgName} $out/lib/node_modules
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rm -fR $out/lib/node_modules/${pkgName}/node_modules
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cp -r node_modules $out/lib/node_modules/${pkgName}/node_modules
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if [ -e "$out/lib/node_modules/${pkgName}/man" ]; then
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mkdir -p $out/share
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for dir in "$out/lib/node_modules/${pkgName}/man/"*; do
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mkdir -p $out/share/man/$(basename "$dir")
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for page in "$dir"/*; do
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ln -sv $page $out/share/man/$(basename "$dir")
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done
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done
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fi
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# Symlink dependencies
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${concatMapStrings (dep: ''
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mv node_modules/${dep.pkgName} $out/lib/node_modules
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'') peerDeps}
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# Install binaries and patch shebangs
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mv node_modules/.bin $out/lib/node_modules 2>/dev/null || true
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if [ -d "$out/lib/node_modules/.bin" ]; then
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ln -sv $out/lib/node_modules/.bin $out/bin
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${patchShebangs "$out/lib/node_modules/.bin/*"}
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fi
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)
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runHook postInstall
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'';
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preFixup = ''
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find $out -type f -print0 | xargs -0 sed -i 's|${src}|${src.name}|g'
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'';
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shellHook = ''
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${preShellHook}
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export PATH=${nodejs}/bin:$(pwd)/node_modules/.bin:$PATH
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mkdir -p node_modules
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${concatMapStrings (dep: ''
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ln -sfv ${dep}/lib/node_modules/${dep.pkgName} node_modules/
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'') deps}
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${postShellHook}
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'';
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passthru.pkgName = pkgName;
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} // (filterAttrs (n: v: n != "deps" && n != "resolvedDeps") args) // {
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name = "${
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if bin == true then "bin-" else if bin == false then "node-" else ""
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}${name}";
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# Run the node setup hook when this package is a build input
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propagatedNativeBuildInputs = (args.propagatedNativeBuildInputs or []) ++ [ nodejs ];
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# Make buildNodePackage useful with --run-env
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nativeBuildInputs = (args.nativeBuildInputs or []) ++ deps ++ peerDependencies ++ neededNatives;
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# Expose list of recursive dependencies upstream, up to the package that
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# caused recursive dependency
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recursiveDeps = (flatten (map (d: remove name d.recursiveDeps) deps)) ++ (attrNames recursiveDeps);
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});
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in self
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