fix: npm ls --long missing deps

Running `npm ls --json --long --all` was broken for any project
containing a missing dependency from the node_modules folder. This
fixes it by avoiding trying to read the extra data required by the
--long option in case a dependency is missing.

Fixes: https://github.com/npm/cli/issues/2724

PR-URL: https://github.com/npm/cli/pull/3119
Credit: @ruyadorno
Close: #3119
Reviewed-by: @wraithgar

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/ls.js b/lib/ls.js
index 56d657945..a6f3fbcd9 100644
--- a/lib/ls.js
+++ b/lib/ls.js
@@ -305,7 +305,7 @@ const getJsonOutputItem = (node, { global, long }) => {
   if (node.isRoot && hasPackageJson)
     item.name = node.package.name || node.name
 
-  if (long) {
+  if (long && !node[_missing]) {
     item.name = item[_name]
     const { dependencies, ...packageInfo } = node.package
     Object.assign(item, packageInfo)