added general/filelist endpoint which returns all (visible) files in current working directory

jupyter-openbis-extension/server.py

@@ -69,6 +69,15 @@ def load_jupyter_server_extension(nb_server_app):
     host_pattern = '.*$'
     base_url = web_app.settings['base_url']
 
+    # get the file list
+    web_app.add_handlers(
+        host_pattern,
+        [(url_path_join( base_url, '/general/filelist'),
+            FileListHandler
+        )]
+    )
+
+
     # DataSet download
     web_app.add_handlers(
         host_pattern, 
@@ -81,10 +90,7 @@ def load_jupyter_server_extension(nb_server_app):
 
     # DataSet upload
     web_app.add_handlers( host_pattern, [(
-            url_path_join(
-                base_url,
-                '/openbis/dataset/(?P<connection_name>.*)'
-            ),
+            url_path_join( base_url, '/openbis/dataset/(?P<connection_name>.*)' ),
             DataSetUploadHandler
         )]
     )
@@ -93,9 +99,7 @@ def load_jupyter_server_extension(nb_server_app):
     web_app.add_handlers(
         host_pattern,
         [(
-            url_path_join(
-                base_url,
-                '/openbis/datasetTypes/(?P<connection_name>.*)'
+            url_path_join( base_url, '/openbis/datasetTypes/(?P<connection_name>.*)'
             ),
             DataSetTypesHandler
         )]
@@ -352,6 +356,37 @@ class SampleHandler(IPythonHandler):
             })
 
 
+class FileListHandler(IPythonHandler):
+
+    def get(self, **params):
+        """
+        Returns the file list of the current working directory
+
+        :param params:
+        :return: dictionary of files, key is the fully qualified name,
+                 value is the relative name (for display)
+        """
+
+        cwd = os.getcwd()
+        files = {}
+        for (dirpath, dirnames, filenames) in os.walk(cwd):
+            if filenames:
+                for filename in filenames:
+                    # ignore hidden files
+                    if filename.startswith('.'):
+                        continue
+                    # ignore hidden folders
+                    if os.path.relpath(dirpath) != '.' \
+                        and os.path.relpath(dirpath).startswith('.'):
+                        continue
+                    fqn = os.path.join(dirpath, filename)
+                    files[fqn] = os.path.relpath(fqn, cwd)
+
+        self.set_status(200)
+        self.write({
+            "files": files
+        })
+
 
 class DataSetDownloadHandler(IPythonHandler):
     """Handle the requests for /openbis/dataset/connection/permId"""