Add user-friendly errors for ENOSPC and EROFS.

Fixes #5101.

1 files changed, 15 insertions, 0 deletions

diff --git a/lib/utils/error-handler.js b/lib/utils/error-handler.js
index 820bf07ad..1af98a89a 100644
--- a/lib/utils/error-handler.js
+++ b/lib/utils/error-handler.js
@@ -268,6 +268,21 @@ function errorHandler (er) {
       break
     } // else passthrough
 
+  case "ENOSPC":
+    log.error("nospc", [er.message
+              ,"This is most likely not a problem with npm itself"
+              ,"and is related to insufficient space on your system."
+              ].join("\n"))
+    break
+
+  case "EROFS":
+    log.error("rofs", [er.message
+              ,"This is most likely not a problem with npm itself"
+              ,"and is related to read-only permissions."
+              ,"\nVerify that the file system is not read-only."
+              ].join("\n"))
+    break
+
   default:
     log.error("", er.stack || er.message || er)
     log.error("", ["If you need help, you may report this *entire* log,"