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33 lines
1.3 KiB
Python
33 lines
1.3 KiB
Python
4 years ago
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import os, json
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def update_json(imgsjson_fn, img_dict, img_fn):
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# write img_dict to json file
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if os.path.isfile(imgsjson_fn) is True: # if json exists
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with open(imgsjson_fn, 'r') as imgsjson_file: # read its content
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imgsjson_dict = json.load(imgsjson_file)
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# print(imgsjson_dict)
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else: # other wise
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imgsjson_dict = {} # imgsjson_dict will be an empty dictionary
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# is file already in dict
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if img_dict['name'] in imgsjson_dict.keys():
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# check if
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# file is locally stored
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img_issaved = os.path.isfile(img_fn)
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# timestamp in json is same as in img object
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img_samets = imgsjson_dict[img_dict['name']]['timestamp'] == img_dict['timestamp']
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if all([img_issaved, img_samets]) is False: # if one or more is False
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# ask it to download again
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download = True
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imgsjson_dict[img_dict['name']] = img_dict # add img_dict to imgsjson_dict under the key of the img.name
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else:
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download = False
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else:
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download = True
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imgsjson_dict[img_dict['name']] = img_dict # add img_dict to imgsjson_dict under the key of the img.name
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with open(imgsjson_fn, 'w') as imgsjson_file:
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json.dump(imgsjson_dict, imgsjson_file, indent=4)
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return download
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