add switch to tree-sitter build to update packages with authn

Author: SteveL-MSFT

tree-sitter-dscexpression/.npmrc

@@ -1,3 +1,7 @@
+; We generally want to save install/update commands
+save=true
+; We use a public Azure Artifacts mirror
 registry=https://pkgs.dev.azure.com/powershell/PowerShell/_packaging/powershell/npm/registry/
-
 always-auth=true
+; But we don't want references to it in the lockfile
+omit-lockfile-registry-resolved=true

tree-sitter-dscexpression/build.ps1

@@ -1,7 +1,9 @@
 # Copyright (c) Microsoft Corporation.
 # Licensed under the MIT License.
 
-# check if tools are installed
+param(
+    [switch]$UpdatePackages
+)
 
 function Invoke-NativeCommand($cmd) {
     Invoke-Expression $cmd
@@ -32,5 +34,18 @@ if ($LASTEXITCODE -ne 0) {
     npm ci tree-sitter-cli --omit=optional
 }
 
+if ($UpdatePackages) {
+    if (!$IsWindows) {
+        throw "This switch only works on Windows"
+    }
+
+    rm ./package-lock.json
+    rm -r ./node_modules
+    npm cache clean --force
+    npm logout
+    vsts-npm-auth -config .npmrc -F -V
+    npm install --force --verbose
+}
+
 Invoke-NativeCommand 'npx tree-sitter generate --build'
 Invoke-NativeCommand 'npx tree-sitter test'