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# SPDX-License-Identifier: BSD-2-Clause
# Copyright (c) 2024 Phil Thompson <phil@riverbankcomputing.com>
from abc import ABC, abstractmethod
import os
import packaging
from sipbuild import UserException
from .qt_metadata import VersionedMetadata
from .verbose import verbose
class AbstractPackage(ABC):
""" This specifies the API of a package. """
def __init__(self, qt_dir, version_str=None):
""" Initialise the package. """
self._qt_dir = os.path.abspath(qt_dir)
# Get the Qt version.
self.qt_version = self._parse_version(
os.path.basename(os.path.dirname(self._qt_dir)))
# We don't support anything older that the current LTS release.
if self.qt_version < (5, 15, 0):
raise UserException(
"Version of Qt older than v5.15 are not supported")
# Parse any package version string.
if version_str:
self._version = self._parse_version(version_str)
# If we set the maintenance number to 0 then this will be the
# version of Qt the wheel was built against. (This is not a valid
# assumption on Windows because of the QAxContainer problem but
# this is handled elsewhere.)
min_qt_version = (self._version[0], self._version[1], 0)
# Check the versions are compatible.
if self.qt_version < min_qt_version:
raise UserException(
"The version of Qt being bundled is too old")
else:
self._version = None
def bundle_msvc_runtime(self, target_qt_dir, platform_tag):
""" Bundle the MSVC runtime. """
# This default implementation does nothing.
def bundle_openssl(self, target_qt_dir, openssl_dir, platform_tag):
""" Bundle the OpenSSL DLLs. """
# This default implementation does nothing.
def bundle_qt(self, target_qt_dir, platform_tag, exclude, ignore_missing,
bindings=True, subwheel=None):
""" Bundle the relevant parts of the Qt installation. Returns True if
the LGPL applies to all bundled parts.
"""
# Architecture-specific values.
if platform_tag.startswith('manylinux'):
module_extensions = ['.abi3.so', '.so']
elif platform_tag.startswith('macosx'):
module_extensions = ['.abi3.so', '.so']
elif platform_tag.startswith('win'):
module_extensions = ['.pyd']
else:
raise UserException(
"Unsupported platform tag '{0}'".format(platform_tag))
package_dir = os.path.dirname(target_qt_dir)
lgpl = True
for name, metadata in self.get_qt_metadata().items():
# Ignore a module if it is explicitly excluded.
if name in exclude:
continue
# Get the metadata for the Qt version.
if isinstance(metadata, VersionedMetadata):
metadata = [metadata]
metadata = [md for md in metadata
if md.is_applicable(self.qt_version)]
if len(metadata) == 0:
continue
metadata = metadata[0]
# See if we need to check if the bindings are present to decide to
# bundle this part of Qt.
if bindings:
# Find the bindings.
for ext in module_extensions:
if os.path.isfile(os.path.join(package_dir, name + ext)):
break
else:
verbose(
"Skipping {0} as it is not in the wheel".format(
name))
continue
elif metadata.legacy:
# We don't bundle Qt for legacy bindings.
continue
lgpl = lgpl and metadata.lgpl
metadata.bundle(name, target_qt_dir, self._qt_dir, platform_tag,
self.qt_version, ignore_missing, subwheel)
return lgpl
@abstractmethod
def get_qt_metadata(self):
""" Return the package-specific meta-data describing the parts of Qt to
install.
"""
def get_target_qt_dir(self):
""" Return the directory, relative to the wheel root, containing the
bundled Qt directory.
"""
# Assume the current naming of the bundled Qt directory.
qt_major_version = self.qt_version[0]
# See if it is an older version.
if self._version is not None:
if (6, 0, 0) <= self._version <= (6, 0, 2):
qt_major_version = ''
elif self._version <= (5, 15, 3):
qt_major_version = ''
return os.path.join('PyQt{}'.format(qt_major_version),
'Qt{}'.format(qt_major_version))
@staticmethod
def missing_executable(exe):
""" Return True if an executable cannot be found on PATH. """
for p in os.environ.get('PATH', '').split(os.pathsep):
exe_path = os.path.join(p, exe)
if os.access(exe_path, os.X_OK):
return False
return True
@property
def qt_version_str(self):
""" The version number of the Qt installation as a string. """
return '.'.join([str(v) for v in self.qt_version])
@staticmethod
def _parse_version(version_str):
""" Parse a version string as a 3-tuple of major, minor and maintenance
versions.
"""
base_version = packaging.version.parse(version_str).base_version
base_version = base_version.split('.')
del base_version[3:]
while len(base_version) < 3:
base_version.append('0')
version = []
for part in base_version:
try:
version.append(int(part))
except ValueError:
raise UserException(
"Unable to parse '{0}' as a version number".format(
version_str))
return tuple(version)
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