nixpkgs/pkgs/development/node-packages/generate.sh

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#!/usr/bin/env bash
set -eu -o pipefail
cd "$( dirname "${BASH_SOURCE[0]}" )"
node2nix=$(nix-build ../../.. -A nodePackages.node2nix)
rm -f ./node-env.nix
# Track the latest active nodejs LTS here: https://nodejs.org/en/about/releases/
"${node2nix}/bin/node2nix" \
-i node-packages.json \
-o node-packages.nix \
-c composition.nix \
--pkg-name nodejs-14_x
# using --no-out-link in nix-build argument would cause the
# gc to run before the script finishes
# which would cause a failure
# it's safer to just remove the link after the script finishes
# see https://github.com/NixOS/nixpkgs/issues/112846 for more details
rm ./result