mirror of
https://github.com/openmc-dev/openmc.git
synced 2026-07-21 22:45:33 -04:00
125 lines
3.7 KiB
Python
Executable file
125 lines
3.7 KiB
Python
Executable file
#!/usr/bin/env python3
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import os
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import shutil
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import subprocess
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import sys
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import tarfile
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import glob
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import hashlib
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import argparse
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from urllib.request import urlopen
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description = """
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Download and extract windowed multipole data based on ENDF/B-VII.1.
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"""
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class CustomFormatter(argparse.ArgumentDefaultsHelpFormatter,
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argparse.RawDescriptionHelpFormatter):
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pass
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parser = argparse.ArgumentParser(
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description=description,
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formatter_class=CustomFormatter
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)
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parser.add_argument('-b', '--batch', action='store_true',
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help='supresses standard in')
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args = parser.parse_args()
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baseUrl = 'https://github.com/smharper/windowed_multipole_library/blob/master/'
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files = ['multipole_lib.tar.gz?raw=true']
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checksums = ['3985aea96f7162a9419c7ed8352e6abb']
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block_size = 16384
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# ==============================================================================
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# DOWNLOAD FILES FROM GITHUB REPO
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filesComplete = []
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for f in files:
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# Establish connection to URL
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url = baseUrl + f
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req = urlopen(url)
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# Get file size from header
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if sys.version_info[0] < 3:
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file_size = int(req.info().getheaders('Content-Length')[0])
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else:
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file_size = req.length
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downloaded = 0
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# Remove GitHub junk from the file name.
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fname = f[:-9] if f.endswith('?raw=true') else f
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# Check if file already downloaded
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if os.path.exists(fname):
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if os.path.getsize(fname) == file_size:
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print('Skipping ' + fname)
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filesComplete.append(fname)
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continue
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else:
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overwrite = input('Overwrite {0}? ([y]/n) '.format(fname))
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if overwrite.lower().startswith('n'):
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continue
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# Copy file to disk
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print('Downloading {0}... '.format(f), end='')
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with open(fname, 'wb') as fh:
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while True:
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chunk = req.read(block_size)
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if not chunk: break
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fh.write(chunk)
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downloaded += len(chunk)
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status = '{0:10} [{1:3.2f}%]'.format(downloaded, downloaded * 100. / file_size)
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print(status + chr(8)*len(status), end='')
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print('')
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filesComplete.append(fname)
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# ==============================================================================
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# VERIFY MD5 CHECKSUMS
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print('Verifying MD5 checksums...')
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for f, checksum in zip(files, checksums):
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fname = f[:-9] if f.endswith('?raw=true') else f
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downloadsum = hashlib.md5(open(fname, 'rb').read()).hexdigest()
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if downloadsum != checksum:
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raise IOError("MD5 checksum for {} does not match. If this is your first "
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"time receiving this message, please re-run the script. "
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"Otherwise, please contact OpenMC developers by emailing "
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"openmc-users@googlegroups.com.".format(f))
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# ==============================================================================
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# EXTRACT FILES FROM TGZ
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for f in files:
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fname = f[:-9] if f.endswith('?raw=true') else f
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if fname not in filesComplete:
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continue
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# Extract files
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with tarfile.open(fname, 'r') as tgz:
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print('Extracting {0}...'.format(fname))
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tgz.extractall(path='wmp/')
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# Move data files down one level
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for filename in glob.glob('wmp/multipole_lib/*'):
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shutil.move(filename, 'wmp/')
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os.rmdir('wmp/multipole_lib')
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# ==============================================================================
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# PROMPT USER TO DELETE .TAR.GZ FILES
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# Ask user to delete
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if not args.batch:
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response = input('Delete *.tar.gz files? ([y]/n) ')
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else:
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response = 'y'
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# Delete files if requested
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if not response or response.lower().startswith('y'):
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for f in files:
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if os.path.exists(f):
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print('Removing {0}...'.format(f))
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os.remove(f)
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