Fix #427 Properly filter out garbage in tgz files.

</3 x-platform unix program dependence.

1 files changed, 7 insertions, 2 deletions

diff --git a/lib/cache.js b/lib/cache.js
index 4b1ea6c23..e056e7e79 100644
--- a/lib/cache.js
+++ b/lib/cache.js
@@ -314,10 +314,15 @@ function addTmpTarball (tgz, cb) {
     if (er) return log.er(cb, "couldn't unpack "+tgz+" to "+contents)(er)
     fs.readdir(contents, function (er, folder) {
       if (er) return log.er(cb, "couldn't readdir "+contents)(er)
+      log.verbose(folder, "tarball contents")
       if (folder.length > 1) {
+        folder = folder.filter(function (f) { return !f.match(/^\./) })
       }
-      if (!folder.length) return cb(new Error(
-        "Empty package tarball"))
+      if (folder.length > 1) {
+        log.warn(folder.slice(1).join("\n")
+                ,"extra junk in folder, ignoring")
+      }
+      if (!folder.length) return cb(new Error("Empty package tarball"))
       folder = path.join(contents, folder[0])
       var newName = path.join(contents, "package")
       fs.rename(folder, newName, function (er) {