def BashCommandTask(taskmanager, term_source, task, environment=None):
'''
environment - list of tuples (EnvVarName, Value)
Launch a task which is effectively a bash script.
'''
f = QTemporaryFile()
f.setFileTemplate( f.fileTemplate() )
f.open()
f.write(term_source)
f.flush()
f.close()
f.setAutoRemove(False)
process = QtCore.QProcess()
ApplyEnvironment(process, environment)
process.readyReadStandardOutput.connect( lambda taskmanager=taskmanager, process=process, task=task :
taskmanager.write_process_output(process, False, task) )
process.readyReadStandardError.connect( lambda taskmanager=taskmanager, process=process, task=task :
taskmanager.write_process_output(process, False, task) )
process.finished.connect( lambda exitcode, taskmanager=taskmanager, process=process, task=task :
taskmanager.finished(exitcode, task, process) )
process.start("bash", [f.fileName()])
return process
