vscode-extensions.rust-analyzer: use global NPM packages to share dependencies

pkgs/misc/vscode-extensions/rust-analyzer/build-deps/package.json

@@ -0,0 +1,22 @@
+{
+  "name": "rust-analyzer",
+  "version": "0.4.0-dev",
+  "dependencies": {
+    "jsonc-parser": "^2.2.1",
+    "node-fetch": "^2.6.0",
+    "vscode-languageclient": "6.1.3",
+    "@rollup/plugin-commonjs": "^11.0.2",
+    "@rollup/plugin-node-resolve": "^7.1.1",
+    "@types/node": "^12.12.34",
+    "@types/node-fetch": "^2.5.5",
+    "@types/vscode": "1.43.0",
+    "@typescript-eslint/eslint-plugin": "^2.26.0",
+    "@typescript-eslint/parser": "^2.26.0",
+    "eslint": "^6.8.0",
+    "rollup": "^2.3.2",
+    "tslib": "^1.11.1",
+    "typescript": "^3.8.3",
+    "typescript-formatter": "^7.2.2",
+    "vsce": "^1.75.0"
+  }
+}

pkgs/misc/vscode-extensions/rust-analyzer/default.nix

@@ -1,6 +1,6 @@
 # Update script: pkgs/development/tools/rust/rust-analyzer/update.sh
-{ lib, pkgs, stdenv, nodejs, vscode-utils, jq, rust-analyzer
-, setDefaultRaLspServerPath ? true
+{ lib, stdenv, vscode-utils, jq, rust-analyzer, nodePackages_10_x
+, setDefaultServerPath ? true
 }:
 
 let
@@ -10,10 +10,10 @@ let
   # Follow the unstable version of rust-analyzer, since the extension is not stable yet.
   inherit (rust-analyzer) version;
 
-  vsix = (import ./node-composition.nix {
-    inherit pkgs nodejs;
-    inherit (stdenv.hostPlatform) system;
-  }).package.override {
+  build-deps = nodePackages_10_x."rust-analyzer-build-deps-../../misc/vscode-extensions/rust-analyzer/build-deps";
+  # FIXME: Making a new derivation to link `node_modules` and run `npm run package`
+  # will cause a build failure.
+  vsix = build-deps.override {
     src = "${rust-analyzer.src}/editors/code";
     outputs = [ "vsix" "out" ];
 
@@ -30,10 +30,10 @@ in vscode-utils.buildVscodeExtension {
   src = "${vsix}/${pname}.zip";
   vscodeExtUniqueId = "${publisher}.${pname}";
 
-  nativeBuildInputs = lib.optional setDefaultRaLspServerPath jq;
+  nativeBuildInputs = lib.optional setDefaultServerPath jq;
 
-  postFixup = lib.optionalString setDefaultRaLspServerPath ''
-    package_json="$out/share/vscode/extensions/${publisher}.${pname}/package.json"
+  postFixup = lib.optionalString setDefaultServerPath ''
+    package_json="$out/${publisher}.${pname}/package.json"
     jq '.contributes.configuration.properties."rust-analyzer.serverPath".default = $s' \
       --arg s "${rust-analyzer}/bin/rust-analyzer" \
       $package_json >$package_json.new

pkgs/misc/vscode-extensions/rust-analyzer/node-composition.nix

@@ -1,17 +0,0 @@
-# This file has been generated by node2nix 1.8.0. Do not edit!
-
-{pkgs ? import <nixpkgs> {
-    inherit system;
-  }, system ? builtins.currentSystem, nodejs ? pkgs."nodejs-12_x"}:
-
-let
-  nodeEnv = import ../../../development/node-packages/node-env.nix {
-    inherit (pkgs) stdenv python2 utillinux runCommand writeTextFile;
-    inherit nodejs;
-    libtool = if pkgs.stdenv.isDarwin then pkgs.darwin.cctools else null;
-  };
-in
-import ./node-packages.nix {
-  inherit (pkgs) fetchurl fetchgit;
-  inherit nodeEnv;
-}