add common code to reduce code duplication

this funtion is mainly for the train ,evel,export_model

tools/program.py

@@ -22,6 +22,7 @@ import yaml
 import os
 from ppocr.utils.utility import create_module
 from ppocr.utils.utility import initial_logger
+
 logger = initial_logger()
 
 import paddle.fluid as fluid
@@ -31,8 +32,7 @@ from eval_utils.eval_det_utils import eval_det_run
 from eval_utils.eval_rec_utils import eval_rec_run
 from ppocr.utils.save_load import save_model
 import numpy as np
-from ppocr.utils.character import cal_predicts_accuracy
-
+from ppocr.utils.character import cal_predicts_accuracy, CharacterOps
 
 class ArgsParser(ArgumentParser):
     def __init__(self):
@@ -374,3 +374,28 @@ def train_eval_rec_run(config, exe, train_info_dict, eval_info_dict):
             save_path = save_model_dir + "/iter_epoch_%d" % (epoch)
             save_model(train_info_dict['train_program'], save_path)
     return
+
+def preProcess():
+    FLAGS = ArgsParser().parse_args()
+    config = load_config(FLAGS.config)
+    merge_config(FLAGS.opt)
+    logger.info(config)
+
+    # check if set use_gpu=True in paddlepaddle cpu version
+    use_gpu = config['Global']['use_gpu']
+    check_gpu(use_gpu)
+
+    alg = config['Global']['algorithm']
+    assert alg in ['EAST', 'DB', 'Rosetta', 'CRNN', 'STARNet', 'RARE']
+    if alg in ['Rosetta', 'CRNN', 'STARNet', 'RARE']:
+        config['Global']['char_ops'] = CharacterOps(config['Global'])
+
+    place = fluid.CUDAPlace(0) if use_gpu else fluid.CPUPlace()
+    startup_program = fluid.Program()
+    train_program = fluid.Program()
+
+    isContain_det = False
+    if alg in ['EAST', 'DB']:
+        isContain_det = True
+
+    return startup_program, train_program, place, config, isContain_det