58 lines
2.2 KiB
Python
58 lines
2.2 KiB
Python
# Copyright (c) 2019 NVIDIA CORPORATION. All rights reserved.
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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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import bz2
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import os
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import urllib.request
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import sys
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import subprocess
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class WikiDownloader:
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def __init__(self, language, save_path):
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self.save_path = save_path + '/wikicorpus_' + language
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if not os.path.exists(self.save_path):
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os.makedirs(self.save_path)
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self.language = language
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self.download_urls = {
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'en' : 'https://dumps.wikimedia.org/enwiki/latest/enwiki-latest-pages-articles.xml.bz2',
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'zh' : 'https://dumps.wikimedia.org/zhwiki/latest/zhwiki-latest-pages-articles.xml.bz2'
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}
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self.output_files = {
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'en' : 'wikicorpus_en.xml.bz2',
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'zh' : 'wikicorpus_zh.xml.bz2'
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}
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def download(self):
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if self.language in self.download_urls:
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url = self.download_urls[self.language]
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filename = self.output_files[self.language]
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print('Downloading:', url)
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if os.path.isfile(self.save_path + '/' + filename):
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print('** Download file already exists, skipping download')
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else:
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response = urllib.request.urlopen(url)
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with open(self.save_path + '/' + filename, "wb") as handle:
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handle.write(response.read())
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# Always unzipping since this is relatively fast and will overwrite
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print('Unzipping:', self.output_files[self.language])
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subprocess.run('bzip2 -dk ' + self.save_path + '/' + filename, shell=True, check=True)
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else:
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assert False, 'WikiDownloader not implemented for this language yet.'
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