1 files changed, 70 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/build-support/node/import-npm-lock/hooks/npm-config-hook.sh b/nixpkgs/pkgs/build-support/node/import-npm-lock/hooks/npm-config-hook.sh
new file mode 100644
index 000000000000..35c3a2061d4b
--- /dev/null
+++ b/nixpkgs/pkgs/build-support/node/import-npm-lock/hooks/npm-config-hook.sh
@@ -0,0 +1,70 @@
+# shellcheck shell=bash
+
+npmConfigHook() {
+    echo "Executing npmConfigHook"
+
+    if [ -n "${npmRoot-}" ]; then
+      pushd "$npmRoot"
+    fi
+
+    if [ -z "${npmDeps-}" ]; then
+        echo "Error: 'npmDeps' should be set when using npmConfigHook."
+        exit 1
+    fi
+
+    echo "Configuring npm"
+
+    export HOME="$TMPDIR"
+    export npm_config_nodedir="@nodeSrc@"
+    export npm_config_node_gyp="@nodeGyp@"
+    npm config set offline true
+    npm config set progress false
+    npm config set fund false
+
+    echo "Installing patched package.json/package-lock.json"
+
+    # Save original package.json/package-lock.json for closure size reductions.
+    # The patched one contains store paths we don't want at runtime.
+    mv package.json .package.json.orig
+    if test -f package-lock.json; then # Not all packages have package-lock.json.
+        mv package-lock.json .package-lock.json.orig
+    fi
+    cp --no-preserve=mode "${npmDeps}/package.json" package.json
+    cp --no-preserve=mode "${npmDeps}/package-lock.json" package-lock.json
+
+    echo "Installing dependencies"
+
+    if ! npm install --ignore-scripts $npmInstallFlags "${npmInstallFlagsArray[@]}" $npmFlags "${npmFlagsArray[@]}"; then
+        echo
+        echo "ERROR: npm failed to install dependencies"
+        echo
+        echo "Here are a few things you can try, depending on the error:"
+        echo '1. Set `npmFlags = [ "--legacy-peer-deps" ]`'
+        echo
+
+        exit 1
+    fi
+
+    patchShebangs node_modules
+
+    npm rebuild $npmRebuildFlags "${npmRebuildFlagsArray[@]}" $npmFlags "${npmFlagsArray[@]}"
+
+    patchShebangs node_modules
+
+    # Canonicalize symlinks from relative paths to the Nix store.
+    node @canonicalizeSymlinksScript@ @storePrefix@
+
+    # Revert to pre-patched package.json/package-lock.json for closure size reductions
+    mv .package.json.orig package.json
+    if test -f ".package-lock.json.orig"; then
+        mv .package-lock.json.orig package-lock.json
+    fi
+
+    if [ -n "${npmRoot-}" ]; then
+      popd
+    fi
+
+    echo "Finished npmConfigHook"
+}
+
+postConfigureHooks+=(npmConfigHook)