Mercurial > repos > shellac > sam_consensus_v3
annotate env/lib/python3.9/site-packages/galaxy/util/zipstream.py @ 0:4f3585e2f14b draft default tip
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
author | shellac |
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date | Mon, 22 Mar 2021 18:12:50 +0000 |
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1 import os |
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2 from urllib.parse import quote |
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3 |
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4 import zipstream |
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5 |
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6 from .path import safe_walk |
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7 |
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8 |
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9 class ZipstreamWrapper: |
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10 |
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11 def __init__(self, archive_name=None, upstream_mod_zip=False, upstream_gzip=False): |
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12 self.upstream_mod_zip = upstream_mod_zip |
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13 self.archive_name = archive_name |
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14 if not self.upstream_mod_zip: |
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15 self.archive = zipstream.ZipFile(allowZip64=True, compression=zipstream.ZIP_STORED if upstream_gzip else zipstream.ZIP_DEFLATED) |
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16 self.files = [] |
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17 self.size = 0 |
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18 |
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19 def response(self): |
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20 if self.upstream_mod_zip: |
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21 yield "\n".join(self.files).encode() |
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22 else: |
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23 yield iter(self.archive) |
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24 |
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25 def get_headers(self): |
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26 headers = {} |
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27 if self.archive_name: |
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28 headers['Content-Disposition'] = f'attachment; filename="{self.archive_name}.zip"' |
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29 if self.upstream_mod_zip: |
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30 headers['X-Archive-Files'] = 'zip' |
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31 else: |
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32 headers['Content-Type'] = 'application/x-zip-compressed' |
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33 return headers |
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34 |
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35 def add_path(self, path, archive_name): |
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36 size = int(os.stat(path).st_size) |
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37 if self.upstream_mod_zip: |
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38 # calculating crc32 would defeat the point of using mod-zip, but if we ever calculate hashsums we should consider this |
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39 crc32 = "-" |
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40 line = f"{crc32} {size} {quote(path)} {archive_name}" |
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41 self.files.append(line) |
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42 else: |
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43 self.size += size |
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44 self.archive.write(path, archive_name) |
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45 |
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46 def write(self, path, archive_name=None): |
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47 if os.path.isdir(path): |
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48 pardir = os.path.join(path, os.pardir) |
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49 for root, directories, files in safe_walk(path): |
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50 for directory in directories: |
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51 dir_path = os.path.join(root, directory) |
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52 self.add_path(dir_path, os.path.relpath(dir_path, pardir)) |
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53 for file in files: |
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54 file_path = os.path.join(root, file) |
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55 self.add_path(file_path, os.path.relpath(file_path, pardir)) |
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56 else: |
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57 self.add_path(path, archive_name or os.path.basename(path)) |