Support for non-UTF8 filenames by using Buffers in calls to fs.stat a…

…nd fs.readdir

The names won't be properly encoded (i.e. they'll be mis-converted back to UTF-8),
but node-dir won't abort now when seeing these names, which was happening before this patch.

lib/paths.js

@@ -121,20 +121,24 @@ exports.files = function files(dir, type, callback, options) {
     }
   }
 
+  var bufdir = Buffer.from(dir);
+
   const onDirRead = function(err, list) {
     if (err) return callback(err);
 
     pending = list.length;
     if (!pending) return done();
 
     for (var file, i = 0, l = list.length; i < l; i++) {
-      file = path.join(dir, list[i]);
+      var fname = list[i].toString();
+      file = path.join(dir, fname);
+      var buffile = Buffer.concat([bufdir, Buffer.from(path.sep), list[i]]);
 
       if(options.sync){
-        var res = fs.statSync(file);
-        getStatHandler(file,list[i])(null, res)
+        var res = fs.statSync(buffile);
+        getStatHandler(file,fname)(null, res)
       }else{
-        fs.stat(file, getStatHandler(file,list[i]));
+        fs.stat(buffile, getStatHandler(file,fname));
       }
     }
 
@@ -146,18 +150,18 @@ exports.files = function files(dir, type, callback, options) {
     if (stat && stat.mode === 17115) return done();
 
     if(options.sync){
-      const list = fs.readdirSync(dir)
+      const list = fs.readdirSync(bufdir, {encoding: 'buffer'})
       return onDirRead(null, list)
     }else{
-      fs.readdir(dir, onDirRead)
+      fs.readdir(bufdir, {encoding: 'buffer'}, onDirRead)
     }
   }
 
   if(options.sync){
-    const stat = fs.statSync(dir);
+    const stat = fs.statSync(bufdir);
     return onStat(null, stat)
   }else{
-    fs.stat(dir, onStat);
+    fs.stat(bufdir, onStat);
   }
 };
 

test/fixtures/testdir5/testuções.txt

@@ -0,0 +1 @@
+bla

test/test.js

@@ -5,7 +5,8 @@
     tdir = path.join(fixturesDir, 'testdir'),
     tdir2 = path.join(fixturesDir, 'testdir2'),
     tdir3 = path.join(fixturesDir, 'testdir3'),
-    tdir4 = path.join(fixturesDir, 'testdir4');
+    tdir4 = path.join(fixturesDir, 'testdir4'),
+    tdir5 = path.join(fixturesDir, 'testdir5');
 
 describe('readfiles method', function() {
 
@@ -1201,6 +1202,11 @@ describe("files method", function() {
         });
     });
 
+    it("support non-UTF8 file names", function() {
+        var files = dir.files(tdir5,'file',()=>{},{sync:true});
+        var cmp = Buffer.from('testdir5/testuções.txt', 'latin1').toString();
+        path.relative(fixturesDir, files[0]).should.eql(cmp);
+   });
 });