ci(NODE-5331): install npm to node_artifacts directory (#656)

Author: baileympearson

.evergreen/init-node-and-npm-env.sh

@@ -0,0 +1,21 @@
+#! /usr/bin/env bash
+##
+## This script add the location of `npm` and `node` to the path.
+## This is necessary because evergreen uses separate bash scripts for
+## different functions in a given CI run but doesn't persist the environment
+## across them.  So we manually invoke this script everywhere we need
+## access to `npm`, `node`, or need to install something globally from
+## npm.
+
+NODE_ARTIFACTS_PATH="${PROJECT_DIRECTORY}/node-artifacts"
+if [[ "$OS" == "Windows_NT" ]]; then
+  NODE_ARTIFACTS_PATH=$(cygpath --unix "$NODE_ARTIFACTS_PATH")
+fi
+
+export NODE_ARTIFACTS_PATH
+# npm uses this environment variable to determine where to install global packages
+export npm_global_prefix=$NODE_ARTIFACTS_PATH/npm_global
+export PATH="$npm_global_prefix/bin:$NODE_ARTIFACTS_PATH/nodejs/bin:$PATH"
+hash -r
+
+export NODE_OPTIONS="--trace-deprecation --trace-warnings"

.evergreen/init-nvm.sh

@@ -2,8 +2,11 @@
 set -o errexit  # Exit the script with error if any of the commands fail
 
 NODE_LTS_VERSION=${NODE_LTS_VERSION:-16}
-NODE_ARTIFACTS_PATH="${PROJECT_DIRECTORY:-$(pwd)}/node-artifacts"
-if [[ "$OS" = "Windows_NT" ]]; then NODE_ARTIFACTS_PATH=$(cygpath --unix "$NODE_ARTIFACTS_PATH"); fi
+
+source "${PROJECT_DIRECTORY}/libmongocrypt/bindings/node/.evergreen/init-node-and-npm-env.sh"
+
+if [[ -z "${npm_global_prefix}" ]]; then echo "npm_global_prefix is unset" && exit 1; fi
+if [[ -z "${NODE_ARTIFACTS_PATH}" ]]; then echo "NODE_ARTIFACTS_PATH is unset" && exit 1; fi
 
 CURL_FLAGS=(
   --fail          # Exit code 1 if request fails
@@ -90,24 +93,17 @@ else
   mv "${NODE_ARTIFACTS_PATH}/${node_directory}" "${NODE_ARTIFACTS_PATH}/nodejs"
 fi
 
-export PATH="$NODE_ARTIFACTS_PATH/npm_global/bin:$NODE_ARTIFACTS_PATH/nodejs/bin:$PATH"
-hash -r
-
-# Set npm -g prefix to our local artifacts directory
-cat <<EOT > .npmrc
-prefix=$NODE_ARTIFACTS_PATH/npm_global
-EOT
-
 if [[ $operating_system != "win" ]]; then
   # Update npm to latest when we can
   npm install --global npm@latest
   hash -r
 fi
 
+echo "npm location: $(which npm)"
 echo "npm version: $(npm -v)"
 
 # other repos that use this script run npm install after installing Node.
-# we can't in mongodb-client-encryption, because when releasing 
+# we can't in mongodb-client-encryption, because when releasing
 # npm install will attempt to build from source, which fails
 # because we haven't built libmongocrypt yet.
 # npm install "${NPM_OPTIONS}"