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annotate lib/python3.8/site-packages/wheel/cli/pack.py @ 0:9e54283cc701 draft

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"planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
author guerler
date Mon, 27 Jul 2020 03:47:31 -0400
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1 from __future__ import print_function
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2
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3 import os.path
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4 import re
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5 import sys
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6
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7 from wheel.cli import WheelError
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8 from wheel.wheelfile import WheelFile
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9
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10 DIST_INFO_RE = re.compile(r"^(?P<namever>(?P<name>.+?)-(?P<ver>\d.*?))\.dist-info$")
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11 BUILD_NUM_RE = re.compile(br'Build: (\d\w*)$')
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12
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13
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14 def pack(directory, dest_dir, build_number):
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15 """Repack a previously unpacked wheel directory into a new wheel file.
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16
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17 The .dist-info/WHEEL file must contain one or more tags so that the target
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18 wheel file name can be determined.
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19
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20 :param directory: The unpacked wheel directory
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21 :param dest_dir: Destination directory (defaults to the current directory)
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22 """
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23 # Find the .dist-info directory
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24 dist_info_dirs = [fn for fn in os.listdir(directory)
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25 if os.path.isdir(os.path.join(directory, fn)) and DIST_INFO_RE.match(fn)]
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26 if len(dist_info_dirs) > 1:
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27 raise WheelError('Multiple .dist-info directories found in {}'.format(directory))
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28 elif not dist_info_dirs:
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29 raise WheelError('No .dist-info directories found in {}'.format(directory))
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30
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31 # Determine the target wheel filename
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32 dist_info_dir = dist_info_dirs[0]
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33 name_version = DIST_INFO_RE.match(dist_info_dir).group('namever')
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34
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35 # Read the tags and the existing build number from .dist-info/WHEEL
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36 existing_build_number = None
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37 wheel_file_path = os.path.join(directory, dist_info_dir, 'WHEEL')
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38 with open(wheel_file_path) as f:
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39 tags = []
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40 for line in f:
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41 if line.startswith('Tag: '):
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42 tags.append(line.split(' ')[1].rstrip())
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43 elif line.startswith('Build: '):
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44 existing_build_number = line.split(' ')[1].rstrip()
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45
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46 if not tags:
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47 raise WheelError('No tags present in {}/WHEEL; cannot determine target wheel filename'
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48 .format(dist_info_dir))
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49
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50 # Set the wheel file name and add/replace/remove the Build tag in .dist-info/WHEEL
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51 build_number = build_number if build_number is not None else existing_build_number
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52 if build_number is not None:
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53 if build_number:
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54 name_version += '-' + build_number
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55
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56 if build_number != existing_build_number:
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57 replacement = ('Build: %s\r\n' % build_number).encode('ascii') if build_number else b''
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58 with open(wheel_file_path, 'rb+') as f:
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59 wheel_file_content = f.read()
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60 if not BUILD_NUM_RE.subn(replacement, wheel_file_content)[1]:
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61 wheel_file_content += replacement
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62
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63 f.truncate()
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64 f.write(wheel_file_content)
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65
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66 # Reassemble the tags for the wheel file
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67 impls = sorted({tag.split('-')[0] for tag in tags})
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68 abivers = sorted({tag.split('-')[1] for tag in tags})
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69 platforms = sorted({tag.split('-')[2] for tag in tags})
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70 tagline = '-'.join(['.'.join(impls), '.'.join(abivers), '.'.join(platforms)])
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71
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72 # Repack the wheel
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73 wheel_path = os.path.join(dest_dir, '{}-{}.whl'.format(name_version, tagline))
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74 with WheelFile(wheel_path, 'w') as wf:
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75 print("Repacking wheel as {}...".format(wheel_path), end='')
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76 sys.stdout.flush()
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77 wf.write_files(directory)
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78
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79 print('OK')