export some filesystem commands through closure

2 files changed, 10 insertions, 2 deletions

diff --git a/src/library.js b/src/library.js
index 9ebe926a..cd18b566 100644
--- a/src/library.js
+++ b/src/library.js
@@ -28,7 +28,14 @@ LibraryManager.library = {
   $FS__deps: ['$ERRNO_CODES', '__setErrNo', 'stdin', 'stdout', 'stderr', '_impure_ptr'],
   $FS__postset: '__ATINIT__.unshift({ func: function() { if (!Module["noFSInit"] && !FS.init.initialized) FS.init() } });' +
                 '__ATMAIN__.push({ func: function() { FS.ignorePermissions = false } });' +
-                '__ATEXIT__.push({ func: function() { FS.quit() } });',
+                '__ATEXIT__.push({ func: function() { FS.quit() } });' +
+                // export some names through closure
+                'Module["FS_createFolder"] = FS.createFolder;' +
+                'Module["FS_createPath"] = FS.createPath;' +
+                'Module["FS_createDataFile"] = FS.createDataFile;' +
+                'Module["FS_createLazyFile"] = FS.createLazyFile;' +
+                'Module["FS_createLink"] = FS.createLink;' +
+                'Module["FS_createDevice"] = FS.createDevice;',
   $FS: {
     // The path to the current folder.
     currentPath: '/',
diff --git a/tests/runner.py b/tests/runner.py
index 779e51da..f8824578 100755
--- a/tests/runner.py
+++ b/tests/runner.py
@@ -4023,8 +4023,9 @@ def process(filename):
     var Module = {
       'noFSInit': true,
       'preRun': function() {
-        FS.createDataFile('/', 'somefile.binary', [100, 200, 50, 25, 10, 77, 123], true, false);  // 200 becomes -56, since signed chars are used in memory
         FS.createLazyFile('/', 'test.file', 'test.file', true, false);
+        // Test FS_* exporting
+        Module['FS_createDataFile']('/', 'somefile.binary', [100, 200, 50, 25, 10, 77, 123], true, false);  // 200 becomes -56, since signed chars are used in memory
         var test_files_input = 'hi there!';
         var test_files_input_index = 0;
         FS.init(function() {