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91 lines
3.3 KiB
91 lines
3.3 KiB
1 year ago
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from __future__ import annotations
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import os.path
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import re
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from wheel.cli import WheelError
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from wheel.wheelfile import WheelFile
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DIST_INFO_RE = re.compile(r"^(?P<namever>(?P<name>.+?)-(?P<ver>\d.*?))\.dist-info$")
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BUILD_NUM_RE = re.compile(rb"Build: (\d\w*)$")
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def pack(directory: str, dest_dir: str, build_number: str | None):
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"""Repack a previously unpacked wheel directory into a new wheel file.
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The .dist-info/WHEEL file must contain one or more tags so that the target
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wheel file name can be determined.
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:param directory: The unpacked wheel directory
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:param dest_dir: Destination directory (defaults to the current directory)
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"""
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# Find the .dist-info directory
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dist_info_dirs = [
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fn
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for fn in os.listdir(directory)
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if os.path.isdir(os.path.join(directory, fn)) and DIST_INFO_RE.match(fn)
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]
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if len(dist_info_dirs) > 1:
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raise WheelError(f"Multiple .dist-info directories found in {directory}")
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elif not dist_info_dirs:
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raise WheelError(f"No .dist-info directories found in {directory}")
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# Determine the target wheel filename
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dist_info_dir = dist_info_dirs[0]
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name_version = DIST_INFO_RE.match(dist_info_dir).group("namever")
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# Read the tags and the existing build number from .dist-info/WHEEL
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existing_build_number = None
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wheel_file_path = os.path.join(directory, dist_info_dir, "WHEEL")
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with open(wheel_file_path) as f:
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tags = []
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for line in f:
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if line.startswith("Tag: "):
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tags.append(line.split(" ")[1].rstrip())
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elif line.startswith("Build: "):
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existing_build_number = line.split(" ")[1].rstrip()
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if not tags:
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raise WheelError(
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"No tags present in {}/WHEEL; cannot determine target wheel "
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"filename".format(dist_info_dir)
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)
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# Set the wheel file name and add/replace/remove the Build tag in .dist-info/WHEEL
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build_number = build_number if build_number is not None else existing_build_number
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if build_number is not None:
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if build_number:
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name_version += "-" + build_number
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if build_number != existing_build_number:
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replacement = (
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("Build: %s\r\n" % build_number).encode("ascii")
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if build_number
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else b""
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)
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with open(wheel_file_path, "rb+") as f:
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wheel_file_content = f.read()
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wheel_file_content, num_replaced = BUILD_NUM_RE.subn(
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replacement, wheel_file_content
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)
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if not num_replaced:
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wheel_file_content += replacement
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f.seek(0)
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f.truncate()
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f.write(wheel_file_content)
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# Reassemble the tags for the wheel file
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impls = sorted({tag.split("-")[0] for tag in tags})
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abivers = sorted({tag.split("-")[1] for tag in tags})
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platforms = sorted({tag.split("-")[2] for tag in tags})
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tagline = "-".join([".".join(impls), ".".join(abivers), ".".join(platforms)])
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# Repack the wheel
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wheel_path = os.path.join(dest_dir, f"{name_version}-{tagline}.whl")
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with WheelFile(wheel_path, "w") as wf:
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print(f"Repacking wheel as {wheel_path}...", end="", flush=True)
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wf.write_files(directory)
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print("OK")
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