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@@ -0,0 +1,588 @@
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+# This file originates from node2nix
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+
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+{lib, stdenv, nodejs, python2, pkgs, libtool, runCommand, writeTextFile, writeShellScript}:
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+
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+let
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+ # Workaround to cope with utillinux in Nixpkgs 20.09 and util-linux in Nixpkgs master
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+ utillinux = if pkgs ? utillinux then pkgs.utillinux else pkgs.util-linux;
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+
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+ python = if nodejs ? python then nodejs.python else python2;
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+
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+ # Create a tar wrapper that filters all the 'Ignoring unknown extended header keyword' noise
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+ tarWrapper = runCommand "tarWrapper" {} ''
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+ mkdir -p $out/bin
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+
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+ cat > $out/bin/tar <<EOF
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+ #! ${stdenv.shell} -e
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+ $(type -p tar) "\$@" --warning=no-unknown-keyword --delay-directory-restore
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+ EOF
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+
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+ chmod +x $out/bin/tar
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+ '';
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+
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+ # Function that generates a TGZ file from a NPM project
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+ buildNodeSourceDist =
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+ { name, version, src, ... }:
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+
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+ stdenv.mkDerivation {
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+ name = "node-tarball-${name}-${version}";
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+ inherit src;
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+ buildInputs = [ nodejs ];
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+ buildPhase = ''
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+ export HOME=$TMPDIR
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+ tgzFile=$(npm pack | tail -n 1) # Hooks to the pack command will add output (https://docs.npmjs.com/misc/scripts)
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+ '';
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+ installPhase = ''
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+ mkdir -p $out/tarballs
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+ mv $tgzFile $out/tarballs
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+ mkdir -p $out/nix-support
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+ echo "file source-dist $out/tarballs/$tgzFile" >> $out/nix-support/hydra-build-products
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+ '';
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+ };
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+
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+ # Common shell logic
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+ installPackage = writeShellScript "install-package" ''
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+ installPackage() {
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+ local packageName=$1 src=$2
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+
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+ local strippedName
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+
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+ local DIR=$PWD
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+ cd $TMPDIR
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+
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+ unpackFile $src
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+
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+ # Make the base dir in which the target dependency resides first
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+ mkdir -p "$(dirname "$DIR/$packageName")"
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+
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+ if [ -f "$src" ]
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+ then
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+ # Figure out what directory has been unpacked
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+ packageDir="$(find . -maxdepth 1 -type d | tail -1)"
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+
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+ # Restore write permissions to make building work
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+ find "$packageDir" -type d -exec chmod u+x {} \;
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+ chmod -R u+w "$packageDir"
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+
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+ # Move the extracted tarball into the output folder
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+ mv "$packageDir" "$DIR/$packageName"
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+ elif [ -d "$src" ]
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+ then
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+ # Get a stripped name (without hash) of the source directory.
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+ # On old nixpkgs it's already set internally.
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+ if [ -z "$strippedName" ]
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+ then
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+ strippedName="$(stripHash $src)"
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+ fi
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+
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+ # Restore write permissions to make building work
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+ chmod -R u+w "$strippedName"
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+
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+ # Move the extracted directory into the output folder
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+ mv "$strippedName" "$DIR/$packageName"
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+ fi
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+
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+ # Change to the package directory to install dependencies
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+ cd "$DIR/$packageName"
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+ }
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+ '';
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+
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+ # Bundle the dependencies of the package
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+ #
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+ # Only include dependencies if they don't exist. They may also be bundled in the package.
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+ includeDependencies = {dependencies}:
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+ lib.optionalString (dependencies != []) (
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+ ''
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+ mkdir -p node_modules
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+ cd node_modules
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+ ''
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+ + (lib.concatMapStrings (dependency:
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+ ''
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+ if [ ! -e "${dependency.name}" ]; then
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+ ${composePackage dependency}
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+ fi
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+ ''
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+ ) dependencies)
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+ + ''
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+ cd ..
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+ ''
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+ );
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+
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+ # Recursively composes the dependencies of a package
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+ composePackage = { name, packageName, src, dependencies ? [], ... }@args:
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+ builtins.addErrorContext "while evaluating node package '${packageName}'" ''
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+ installPackage "${packageName}" "${src}"
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+ ${includeDependencies { inherit dependencies; }}
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+ cd ..
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+ ${lib.optionalString (builtins.substring 0 1 packageName == "@") "cd .."}
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+ '';
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+
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+ pinpointDependencies = {dependencies, production}:
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+ let
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+ pinpointDependenciesFromPackageJSON = writeTextFile {
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+ name = "pinpointDependencies.js";
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+ text = ''
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+ var fs = require('fs');
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+ var path = require('path');
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+
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+ function resolveDependencyVersion(location, name) {
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+ if(location == process.env['NIX_STORE']) {
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+ return null;
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+ } else {
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+ var dependencyPackageJSON = path.join(location, "node_modules", name, "package.json");
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+
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+ if(fs.existsSync(dependencyPackageJSON)) {
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+ var dependencyPackageObj = JSON.parse(fs.readFileSync(dependencyPackageJSON));
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+
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+ if(dependencyPackageObj.name == name) {
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+ return dependencyPackageObj.version;
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+ }
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+ } else {
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+ return resolveDependencyVersion(path.resolve(location, ".."), name);
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+ }
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+ }
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+ }
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+
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+ function replaceDependencies(dependencies) {
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+ if(typeof dependencies == "object" && dependencies !== null) {
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+ for(var dependency in dependencies) {
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+ var resolvedVersion = resolveDependencyVersion(process.cwd(), dependency);
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+
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+ if(resolvedVersion === null) {
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+ process.stderr.write("WARNING: cannot pinpoint dependency: "+dependency+", context: "+process.cwd()+"\n");
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+ } else {
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+ dependencies[dependency] = resolvedVersion;
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+ }
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+ }
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+ }
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+ }
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+
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+ /* Read the package.json configuration */
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+ var packageObj = JSON.parse(fs.readFileSync('./package.json'));
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+
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+ /* Pinpoint all dependencies */
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+ replaceDependencies(packageObj.dependencies);
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+ if(process.argv[2] == "development") {
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+ replaceDependencies(packageObj.devDependencies);
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+ }
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+ replaceDependencies(packageObj.optionalDependencies);
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+
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+ /* Write the fixed package.json file */
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+ fs.writeFileSync("package.json", JSON.stringify(packageObj, null, 2));
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+ '';
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+ };
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+ in
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+ ''
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+ node ${pinpointDependenciesFromPackageJSON} ${if production then "production" else "development"}
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+
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+ ${lib.optionalString (dependencies != [])
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+ ''
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+ if [ -d node_modules ]
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+ then
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+ cd node_modules
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+ ${lib.concatMapStrings (dependency: pinpointDependenciesOfPackage dependency) dependencies}
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+ cd ..
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+ fi
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+ ''}
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+ '';
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+
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+ # Recursively traverses all dependencies of a package and pinpoints all
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+ # dependencies in the package.json file to the versions that are actually
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+ # being used.
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+
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+ pinpointDependenciesOfPackage = { packageName, dependencies ? [], production ? true, ... }@args:
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+ ''
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+ if [ -d "${packageName}" ]
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+ then
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+ cd "${packageName}"
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+ ${pinpointDependencies { inherit dependencies production; }}
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+ cd ..
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+ ${lib.optionalString (builtins.substring 0 1 packageName == "@") "cd .."}
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+ fi
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+ '';
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+
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+ # Extract the Node.js source code which is used to compile packages with
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+ # native bindings
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+ nodeSources = 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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+
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+ # Script that adds _integrity fields to all package.json files to prevent NPM from consulting the cache (that is empty)
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+ addIntegrityFieldsScript = writeTextFile {
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+ name = "addintegrityfields.js";
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+ text = ''
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+ var fs = require('fs');
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+ var path = require('path');
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+
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+ function augmentDependencies(baseDir, dependencies) {
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+ for(var dependencyName in dependencies) {
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+ var dependency = dependencies[dependencyName];
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+
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+ // Open package.json and augment metadata fields
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+ var packageJSONDir = path.join(baseDir, "node_modules", dependencyName);
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+ var packageJSONPath = path.join(packageJSONDir, "package.json");
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+
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+ if(fs.existsSync(packageJSONPath)) { // Only augment packages that exist. Sometimes we may have production installs in which development dependencies can be ignored
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+ console.log("Adding metadata fields to: "+packageJSONPath);
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+ var packageObj = JSON.parse(fs.readFileSync(packageJSONPath));
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+
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+ if(dependency.integrity) {
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+ packageObj["_integrity"] = dependency.integrity;
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+ } else {
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+ packageObj["_integrity"] = "sha1-000000000000000000000000000="; // When no _integrity string has been provided (e.g. by Git dependencies), add a dummy one. It does not seem to harm and it bypasses downloads.
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+ }
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+
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+ if(dependency.resolved) {
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+ packageObj["_resolved"] = dependency.resolved; // Adopt the resolved property if one has been provided
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+ } else {
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+ packageObj["_resolved"] = dependency.version; // Set the resolved version to the version identifier. This prevents NPM from cloning Git repositories.
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+ }
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+
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+ if(dependency.from !== undefined) { // Adopt from property if one has been provided
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+ packageObj["_from"] = dependency.from;
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+ }
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+
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+ fs.writeFileSync(packageJSONPath, JSON.stringify(packageObj, null, 2));
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+ }
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+
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+ // Augment transitive dependencies
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+ if(dependency.dependencies !== undefined) {
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+ augmentDependencies(packageJSONDir, dependency.dependencies);
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+ }
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+ }
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+ }
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+
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+ if(fs.existsSync("./package-lock.json")) {
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+ var packageLock = JSON.parse(fs.readFileSync("./package-lock.json"));
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+
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+ if(![1, 2].includes(packageLock.lockfileVersion)) {
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+ process.stderr.write("Sorry, I only understand lock file versions 1 and 2!\n");
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+ process.exit(1);
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+ }
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+
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+ if(packageLock.dependencies !== undefined) {
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+ augmentDependencies(".", packageLock.dependencies);
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+ }
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+ }
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+ '';
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+ };
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+
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+ # Reconstructs a package-lock file from the node_modules/ folder structure and package.json files with dummy sha1 hashes
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+ reconstructPackageLock = writeTextFile {
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+ name = "addintegrityfields.js";
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+ text = ''
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+ var fs = require('fs');
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+ var path = require('path');
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+
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+ var packageObj = JSON.parse(fs.readFileSync("package.json"));
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+
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+ var lockObj = {
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+ name: packageObj.name,
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+ version: packageObj.version,
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+ lockfileVersion: 1,
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+ requires: true,
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+ dependencies: {}
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+ };
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+
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+ function augmentPackageJSON(filePath, dependencies) {
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+ var packageJSON = path.join(filePath, "package.json");
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+ if(fs.existsSync(packageJSON)) {
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+ var packageObj = JSON.parse(fs.readFileSync(packageJSON));
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+ dependencies[packageObj.name] = {
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+ version: packageObj.version,
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+ integrity: "sha1-000000000000000000000000000=",
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+ dependencies: {}
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+ };
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+ processDependencies(path.join(filePath, "node_modules"), dependencies[packageObj.name].dependencies);
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+ }
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+ }
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+
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+ function processDependencies(dir, dependencies) {
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+ if(fs.existsSync(dir)) {
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+ var files = fs.readdirSync(dir);
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+
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+ files.forEach(function(entry) {
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+ var filePath = path.join(dir, entry);
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+ var stats = fs.statSync(filePath);
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+
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+ if(stats.isDirectory()) {
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+ if(entry.substr(0, 1) == "@") {
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+ // When we encounter a namespace folder, augment all packages belonging to the scope
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+ var pkgFiles = fs.readdirSync(filePath);
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+
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+ pkgFiles.forEach(function(entry) {
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+ if(stats.isDirectory()) {
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+ var pkgFilePath = path.join(filePath, entry);
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+ augmentPackageJSON(pkgFilePath, dependencies);
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+ }
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+ });
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+ } else {
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+ augmentPackageJSON(filePath, dependencies);
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+ }
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+ }
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+ });
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+ }
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+ }
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+
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+ processDependencies("node_modules", lockObj.dependencies);
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+
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+ fs.writeFileSync("package-lock.json", JSON.stringify(lockObj, null, 2));
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+ '';
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+ };
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+
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+ prepareAndInvokeNPM = {packageName, bypassCache, reconstructLock, npmFlags, production}:
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+ let
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+ forceOfflineFlag = if bypassCache then "--offline" else "--registry http://www.example.com";
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+ in
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+ ''
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+ # Pinpoint the versions of all dependencies to the ones that are actually being used
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+ echo "pinpointing versions of dependencies..."
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+ source $pinpointDependenciesScriptPath
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+
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+ # Patch the shebangs of the bundled modules to prevent them from
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+ # calling executables outside the Nix store as much as possible
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+ patchShebangs .
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+
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+ # Deploy the Node.js package by running npm install. Since the
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+ # dependencies have been provided already by ourselves, it should not
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+ # attempt to install them again, which is good, because we want to make
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+ # it Nix's responsibility. If it needs to install any dependencies
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+ # anyway (e.g. because the dependency parameters are
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+ # incomplete/incorrect), it fails.
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+ #
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+ # The other responsibilities of NPM are kept -- version checks, build
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+ # steps, postprocessing etc.
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+
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+ export HOME=$TMPDIR
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+ cd "${packageName}"
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+ runHook preRebuild
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+
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+ ${lib.optionalString bypassCache ''
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+ ${lib.optionalString reconstructLock ''
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+ if [ -f package-lock.json ]
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+ then
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+ echo "WARNING: Reconstruct lock option enabled, but a lock file already exists!"
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+ echo "This will most likely result in version mismatches! We will remove the lock file and regenerate it!"
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+ rm package-lock.json
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+ else
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+ echo "No package-lock.json file found, reconstructing..."
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+ fi
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+
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+ node ${reconstructPackageLock}
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+ ''}
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+
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+ node ${addIntegrityFieldsScript}
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+ ''}
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+
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+ npm ${forceOfflineFlag} --nodedir=${nodeSources} ${npmFlags} ${lib.optionalString production "--production"} rebuild
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+
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+ if [ "''${dontNpmInstall-}" != "1" ]
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+ then
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+ # NPM tries to download packages even when they already exist if npm-shrinkwrap is used.
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+ rm -f npm-shrinkwrap.json
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+
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+ npm ${forceOfflineFlag} --nodedir=${nodeSources} ${npmFlags} ${lib.optionalString production "--production"} install
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+ fi
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+ '';
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+
|
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+ # Builds and composes an NPM package including all its dependencies
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+ buildNodePackage =
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+ { name
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+ , packageName
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+ , version
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+ , dependencies ? []
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+ , buildInputs ? []
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+ , production ? true
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+ , npmFlags ? ""
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+ , dontNpmInstall ? false
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+ , bypassCache ? false
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+ , reconstructLock ? false
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+ , preRebuild ? ""
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+ , dontStrip ? true
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+ , unpackPhase ? "true"
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+ , buildPhase ? "true"
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+ , meta ? {}
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+ , ... }@args:
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+
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+ let
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+ extraArgs = removeAttrs args [ "name" "dependencies" "buildInputs" "dontStrip" "dontNpmInstall" "preRebuild" "unpackPhase" "buildPhase" "meta" ];
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+ in
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+ stdenv.mkDerivation ({
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+ name = "${name}-${version}";
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+ buildInputs = [ tarWrapper python nodejs ]
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+ ++ lib.optional (stdenv.isLinux) utillinux
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+ ++ lib.optional (stdenv.isDarwin) libtool
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+ ++ buildInputs;
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+
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+ inherit nodejs;
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+
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+ inherit dontStrip; # Stripping may fail a build for some package deployments
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+ inherit dontNpmInstall preRebuild unpackPhase buildPhase;
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+
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|
|
+ compositionScript = composePackage args;
|
|
|
+ pinpointDependenciesScript = pinpointDependenciesOfPackage args;
|
|
|
+
|
|
|
+ passAsFile = [ "compositionScript" "pinpointDependenciesScript" ];
|
|
|
+
|
|
|
+ installPhase = ''
|
|
|
+ source ${installPackage}
|
|
|
+
|
|
|
+ # Create and enter a root node_modules/ folder
|
|
|
+ mkdir -p $out/lib/node_modules
|
|
|
+ cd $out/lib/node_modules
|
|
|
+
|
|
|
+ # Compose the package and all its dependencies
|
|
|
+ source $compositionScriptPath
|
|
|
+
|
|
|
+ ${prepareAndInvokeNPM { inherit packageName bypassCache reconstructLock npmFlags production; }}
|
|
|
+
|
|
|
+ # Create symlink to the deployed executable folder, if applicable
|
|
|
+ if [ -d "$out/lib/node_modules/.bin" ]
|
|
|
+ then
|
|
|
+ ln -s $out/lib/node_modules/.bin $out/bin
|
|
|
+ fi
|
|
|
+
|
|
|
+ # Create symlinks to the deployed manual page folders, if applicable
|
|
|
+ if [ -d "$out/lib/node_modules/${packageName}/man" ]
|
|
|
+ then
|
|
|
+ mkdir -p $out/share
|
|
|
+ for dir in "$out/lib/node_modules/${packageName}/man/"*
|
|
|
+ do
|
|
|
+ mkdir -p $out/share/man/$(basename "$dir")
|
|
|
+ for page in "$dir"/*
|
|
|
+ do
|
|
|
+ ln -s $page $out/share/man/$(basename "$dir")
|
|
|
+ done
|
|
|
+ done
|
|
|
+ fi
|
|
|
+
|
|
|
+ # Run post install hook, if provided
|
|
|
+ runHook postInstall
|
|
|
+ '';
|
|
|
+
|
|
|
+ meta = {
|
|
|
+ # default to Node.js' platforms
|
|
|
+ platforms = nodejs.meta.platforms;
|
|
|
+ } // meta;
|
|
|
+ } // extraArgs);
|
|
|
+
|
|
|
+ # Builds a node environment (a node_modules folder and a set of binaries)
|
|
|
+ buildNodeDependencies =
|
|
|
+ { name
|
|
|
+ , packageName
|
|
|
+ , version
|
|
|
+ , src
|
|
|
+ , dependencies ? []
|
|
|
+ , buildInputs ? []
|
|
|
+ , production ? true
|
|
|
+ , npmFlags ? ""
|
|
|
+ , dontNpmInstall ? false
|
|
|
+ , bypassCache ? false
|
|
|
+ , reconstructLock ? false
|
|
|
+ , dontStrip ? true
|
|
|
+ , unpackPhase ? "true"
|
|
|
+ , buildPhase ? "true"
|
|
|
+ , ... }@args:
|
|
|
+
|
|
|
+ let
|
|
|
+ extraArgs = removeAttrs args [ "name" "dependencies" "buildInputs" ];
|
|
|
+ in
|
|
|
+ stdenv.mkDerivation ({
|
|
|
+ name = "node-dependencies-${name}-${version}";
|
|
|
+
|
|
|
+ buildInputs = [ tarWrapper python nodejs ]
|
|
|
+ ++ lib.optional (stdenv.isLinux) utillinux
|
|
|
+ ++ lib.optional (stdenv.isDarwin) libtool
|
|
|
+ ++ buildInputs;
|
|
|
+
|
|
|
+ inherit dontStrip; # Stripping may fail a build for some package deployments
|
|
|
+ inherit dontNpmInstall unpackPhase buildPhase;
|
|
|
+
|
|
|
+ includeScript = includeDependencies { inherit dependencies; };
|
|
|
+ pinpointDependenciesScript = pinpointDependenciesOfPackage args;
|
|
|
+
|
|
|
+ passAsFile = [ "includeScript" "pinpointDependenciesScript" ];
|
|
|
+
|
|
|
+ installPhase = ''
|
|
|
+ source ${installPackage}
|
|
|
+
|
|
|
+ mkdir -p $out/${packageName}
|
|
|
+ cd $out/${packageName}
|
|
|
+
|
|
|
+ source $includeScriptPath
|
|
|
+
|
|
|
+ # Create fake package.json to make the npm commands work properly
|
|
|
+ cp ${src}/package.json .
|
|
|
+ chmod 644 package.json
|
|
|
+ ${lib.optionalString bypassCache ''
|
|
|
+ if [ -f ${src}/package-lock.json ]
|
|
|
+ then
|
|
|
+ cp ${src}/package-lock.json .
|
|
|
+ fi
|
|
|
+ ''}
|
|
|
+
|
|
|
+ # Go to the parent folder to make sure that all packages are pinpointed
|
|
|
+ cd ..
|
|
|
+ ${lib.optionalString (builtins.substring 0 1 packageName == "@") "cd .."}
|
|
|
+
|
|
|
+ ${prepareAndInvokeNPM { inherit packageName bypassCache reconstructLock npmFlags production; }}
|
|
|
+
|
|
|
+ # Expose the executables that were installed
|
|
|
+ cd ..
|
|
|
+ ${lib.optionalString (builtins.substring 0 1 packageName == "@") "cd .."}
|
|
|
+
|
|
|
+ mv ${packageName} lib
|
|
|
+ ln -s $out/lib/node_modules/.bin $out/bin
|
|
|
+ '';
|
|
|
+ } // extraArgs);
|
|
|
+
|
|
|
+ # Builds a development shell
|
|
|
+ buildNodeShell =
|
|
|
+ { name
|
|
|
+ , packageName
|
|
|
+ , version
|
|
|
+ , src
|
|
|
+ , dependencies ? []
|
|
|
+ , buildInputs ? []
|
|
|
+ , production ? true
|
|
|
+ , npmFlags ? ""
|
|
|
+ , dontNpmInstall ? false
|
|
|
+ , bypassCache ? false
|
|
|
+ , reconstructLock ? false
|
|
|
+ , dontStrip ? true
|
|
|
+ , unpackPhase ? "true"
|
|
|
+ , buildPhase ? "true"
|
|
|
+ , ... }@args:
|
|
|
+
|
|
|
+ let
|
|
|
+ nodeDependencies = buildNodeDependencies args;
|
|
|
+ in
|
|
|
+ stdenv.mkDerivation {
|
|
|
+ name = "node-shell-${name}-${version}";
|
|
|
+
|
|
|
+ buildInputs = [ python nodejs ] ++ lib.optional (stdenv.isLinux) utillinux ++ buildInputs;
|
|
|
+ buildCommand = ''
|
|
|
+ mkdir -p $out/bin
|
|
|
+ cat > $out/bin/shell <<EOF
|
|
|
+ #! ${stdenv.shell} -e
|
|
|
+ $shellHook
|
|
|
+ exec ${stdenv.shell}
|
|
|
+ EOF
|
|
|
+ chmod +x $out/bin/shell
|
|
|
+ '';
|
|
|
+
|
|
|
+ # Provide the dependencies in a development shell through the NODE_PATH environment variable
|
|
|
+ inherit nodeDependencies;
|
|
|
+ shellHook = lib.optionalString (dependencies != []) ''
|
|
|
+ export NODE_PATH=${nodeDependencies}/lib/node_modules
|
|
|
+ export PATH="${nodeDependencies}/bin:$PATH"
|
|
|
+ '';
|
|
|
+ };
|
|
|
+in
|
|
|
+{
|
|
|
+ buildNodeSourceDist = lib.makeOverridable buildNodeSourceDist;
|
|
|
+ buildNodePackage = lib.makeOverridable buildNodePackage;
|
|
|
+ buildNodeDependencies = lib.makeOverridable buildNodeDependencies;
|
|
|
+ buildNodeShell = lib.makeOverridable buildNodeShell;
|
|
|
+}
|
