38 lines
1.5 KiB
Python
38 lines
1.5 KiB
Python
# Copyright 2021 The MediaPipe Authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""MediaPipe Downloading utils."""
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import os
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import shutil
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import urllib.request
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_GCS_URL_PREFIX = 'https://storage.googleapis.com/mediapipe-assets/'
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def download_oss_model(model_path: str):
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"""Downloads the oss model from Google Cloud Storage if it doesn't exist in the package."""
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mp_root_path = os.sep.join(os.path.abspath(__file__).split(os.sep)[:-4])
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model_abspath = os.path.join(mp_root_path, model_path)
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if os.path.exists(model_abspath):
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return
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model_url = _GCS_URL_PREFIX + model_path.split('/')[-1]
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print('Downloading model to ' + model_abspath)
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with urllib.request.urlopen(model_url) as response, open(model_abspath,
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'wb') as out_file:
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if response.code != 200:
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raise ConnectionError('Cannot download ' + model_path +
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' from Google Cloud Storage.')
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shutil.copyfileobj(response, out_file)
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