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#!/usr/bin/env python3 |
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"""Manually download dat files, if Git-LFS isn't working or something.""" |
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import os |
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import subprocess |
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import requests |
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from bbarchivist.bbconstants import CAP, CFP, FLASHBAT, FLASHSH |
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__author__ = "Thurask" |
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__license__ = "WTFPL v2" |
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__copyright__ = "2015-2017 Thurask" |
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def prep_download(url, output_directory=None): |
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""" |
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Prepare download. |
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:param url: URL to download from. |
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:type url: str |
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:param output_directory: Download folder. Default is local. |
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:type output_directory: str |
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""" |
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if output_directory is None: |
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output_directory = os.getcwd() |
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lfname = url.split('/')[-1] |
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fname = os.path.join(output_directory, lfname) |
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sess = requests.Session() |
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return lfname, fname, sess |
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def download_write(req, lfname, file): |
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""" |
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Write downloaded chunks to file. |
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:param req: Response object. |
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:type req: requests.Response |
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:param lfname: Filename. |
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:type lfname: str |
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:param file: Open (!!!) file handle. Output file. |
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:type file: str |
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""" |
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print("DOWNLOADING {0}".format(lfname)) |
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for chunk in req.iter_content(chunk_size=1024): |
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file.write(chunk) |
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def download(url, output_directory=None): |
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""" |
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Download file from given URL. |
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:param url: URL to download from. |
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:type url: str |
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:param output_directory: Download folder. Default is local. |
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:type output_directory: str |
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""" |
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lfname, fname, sess = prep_download(url, output_directory) |
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with open(fname, "wb") as file: |
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req = sess.get(url, stream=True) |
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if req.status_code == 200: # 200 OK |
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download_write(req, lfname, file) |
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else: |
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print("ERROR: HTTP {0} IN {1}".format(req.status_code, lfname)) |
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def prep_file(datafile, filelist): |
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""" |
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Prepare a file for download if necessary. |
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:param datafile: Datafile instance. |
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:type datafile: bbarchivist.bbconstants.Datafile |
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:param filelist: List of files that need downloading. |
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:type filelist: list(str) |
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""" |
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basename = "https://github.com/thurask/bbarchivist/raw/master/bbarchivist/" |
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afile = os.path.basename(datafile.location) |
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try: |
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if os.path.getsize(datafile.location) != datafile.size: |
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filelist.append(basename + afile) |
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except FileNotFoundError: |
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filelist.append(basename + afile) |
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return filelist |
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def git_ignore(datafile): |
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""" |
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Update git index to deal with pesky issues w/r/t datafiles. |
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:param datafile: Datafile instance. |
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:type datafile: bbarchivist.bbconstants.Datafile |
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""" |
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cmd = "git update-index --assume-unchanged {0}".format(datafile) |
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subprocess.call(cmd, shell=True) |
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def main(): |
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""" |
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Download dat files, in lieu of Git-LFS. |
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""" |
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files = [] |
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files = prep_file(CAP, files) |
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files = prep_file(CFP, files) |
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files = prep_file(FLASHBAT, files) |
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files = prep_file(FLASHSH, files) |
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outdir = os.path.join(os.getcwd(), "bbarchivist", "datfiles") |
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if files: |
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for file in files: |
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download(file, outdir) |
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git_ignore(os.path.join(outdir, os.path.basename(file))) |
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print("GIT INDEX UPDATED, RE-TRACK IF UPDATE NEEDED") |
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else: |
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print("NOTHING TO DOWNLOAD!") |
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if __name__ == "__main__": |
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main() |
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thurask /
bbarchivist
