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