Log an error about configs if tar or gzip don't work.

1 files changed, 6 insertions, 1 deletions

diff --git a/lib/cache.js b/lib/cache.js
index 20c759a9e..ac6f10e68 100644
--- a/lib/cache.js
+++ b/lib/cache.js
@@ -215,7 +215,9 @@ function unpackTar (tarball, unpackTarget, cb) {
         , spawn( npm.config.get("tar")
                , ["vx", "--strip-components=1", "-C", unpackTarget]
                )
-        , cb
+        , log.er(cb, "Failed unpacking the tarball.\n"
+                   + "This is very rare. Perhaps the 'gzip' or 'tar' configs\n"
+                   + "are set improperly?\n")
         )
   })
 }
@@ -229,6 +231,9 @@ function packTar (targetTarball, folder, cb) {
     , ignore = path.join(folder, ".npmignore")
     , defaultIgnore = path.join(__dirname, "utils", "default.npmignore")
     , include = path.join(folder, ".npminclude")
+  cb = log.er(cb, "Failed unpacking the tarball.\n"
+             + "This is very rare. Perhaps the 'gzip' or 'tar' configs\n"
+             + "are set improperly?\n")
 
   fs.stat(ignore, function (er) {
     if (er) ignore = defaultIgnore