progress reporting / logging about mintpy HOT 6 OPEN

    def _run_command(self, cmd: str, cwd: Union[str, None]) -> int:
        """
        Run command and log to file
        :param cmd: Command to execute
        :param cwd: Current working directory
        :return: Return code 0 is success. 1 is failure
        """

        # Create file to capture output
        if not os.path.exists(self.log_file):
            with open(self.log_file, 'w', newline='') as f:
                f.write('DINSAR LOG FILE\n')
                f.write(f'TIMESTAMP: {self.timestamp}\n')
                f.write('======================================\n')

        proc = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE,
                                stderr=subprocess.STDOUT, bufsize=0, universal_newlines=True,
                                cwd=cwd)
        return_code = 0
        while proc is not None:
            try:
                line = proc.stdout.readline()
            except UnicodeDecodeError:
                sys.stdout.flush()
                continue
            sys.stdout.flush()
            if line != '':
                print_line = line.replace('\n', '')
                print(print_line)
                with open(self.log_file, 'a', newline='') as f:
                    f.write(line)
                # Catch errors using string matching
                if 'Error:' in line:
                    msg = f'WARNING: Possible CLI failure'
                    self._print_to_log(msg)
                    return_code = 1
            else:
                break

        return return_code

    def _print_to_log(self, input_var, print_to_terminal=True) -> None:
        """
        Object print command that will also print to the log file
        :return:
        """
        input_var = str(input_var)
        if print_to_terminal:
            print(input_var)
        path = self.log_file
        file_exists = os.path.exists(path)
        with open(path, 'a', newline='') as f:
            if not file_exists:
                f.write('MINTPY LOG FILE\n')
                f.write(f'TIMESTAMP: {self.timestamp}\n')
                f.write('======================================\n')
            if not input_var.endswith('\n'):
                input_var += '\n'
            f.write(input_var)