adding progress tracker

xtreemfs_client/div_util.py

@@ -51,6 +51,8 @@ execute list of commands in parallel, return list of executions returned with an
 def run_commands(commands, max_processes=200, print_errors=True):
     running_processes = set()
     errored_processes = []
+    num_finished = 0
+    num_total = len(commands)
     for command in commands:
         started_process = subprocess.Popen(command, stderr=subprocess.PIPE, stdout=subprocess.PIPE, shell=True)
         running_processes.add(started_process)
@@ -59,6 +61,7 @@ def run_commands(commands, max_processes=200, print_errors=True):
             difference = set()
             for running_process in running_processes:
                 if running_process.poll() is not None:
+                    num_finished += 1
                     difference.add(running_process)
                     finished_process = (running_process.args,
                                         running_process.communicate(),
@@ -67,6 +70,7 @@ def run_commands(commands, max_processes=200, print_errors=True):
                         errored_processes.append(finished_process)
                         if print_errors:
                             print_error(finished_process)
+                    print("progress: " + str(num_finished) + "/" + str(num_total))
 
             running_processes = running_processes.difference(difference)