outdated: exitcode != 0 on outdated dependencies

This update is a breaking change feature. When outdated dependencies
exist in a project, the command displays a helpful error message
and then finish the action with `exit 1`. To ignore the error and
keep the previous behavior, it's possible via passing `--silent` option.

Fixes: #5999
PR-URL: https://github.com/npm/npm/pull/14013
Credit: @watilde
Reviewed-By: @zkat
Reviewed-By: @iarna

1 files changed, 6 insertions, 1 deletions

diff --git a/lib/outdated.js b/lib/outdated.js
index dd5979836..9ad9aff6d 100644
--- a/lib/outdated.js
+++ b/lib/outdated.js
@@ -111,7 +111,12 @@ function outdated (args, silent, cb) {
         }
         output(table(outTable, tableOpts))
       }
-      cb(null, list.map(function (item) { return [item[0].parent.path].concat(item.slice(1, 7)) }))
+      var msg = [
+        'The outdated dependencies were found. Please make sure',
+        'the versions in node_module, or look over package.json',
+        'to use the most suitable semver range.'
+      ].join('\n')
+      cb(msg, list.map(function (item) { return [item[0].parent.path].concat(item.slice(1, 7)) }))
     })
   }))
 }