def transform_name(self, python_package_name, *extras):
"""
Transform Python package name to Debian package name.
:param python_package_name: The name of a Python package
as found on PyPI (a string).
:param extras: Any extras requested to be included (a tuple of strings).
:returns: The transformed name (a string).
Examples:
>>> from py2deb.converter import PackageConverter
>>> converter = PackageConverter()
>>> converter.transform_name('example')
'python-example'
>>> converter.set_name_prefix('my-custom-prefix')
>>> converter.transform_name('example')
'my-custom-prefix-example'
>>> converter.set_name_prefix('some-web-app')
>>> converter.transform_name('raven', 'flask')
'some-web-app-raven-flask'
"""
key = python_package_name.lower()
# Check for a system package override by the caller.
debian_package_name = self.system_packages.get(key)
if debian_package_name:
# We don't modify the names of system packages.
return debian_package_name
# Check for a package rename override by the caller.
debian_package_name = self.name_mapping.get(key)
if not debian_package_name:
# No override. Make something up :-).
debian_package_name = convert_package_name(
python_package_name=python_package_name,
name_prefix=self.name_prefix,
extras=extras,
)
# Always normalize the package name (even if it was given to us by the caller).
return normalize_package_name(debian_package_name)
def test_conversion_of_package_with_dependencies(self):
"""
Convert a non trivial Python package with several dependencies.
Converts deb-pkg-tools_ to a Debian package archive and sanity checks the
result. Performs static checks on the metadata (dependencies) of the
resulting package archive.
.. _deb-pkg-tools: https://pypi.org/project/deb-pkg-tools
"""
# Use a temporary directory as py2deb's repository directory so that we
# can easily find the *.deb archive generated by py2deb.
with TemporaryDirectory() as directory:
# Run the conversion command.
exit_code, output = run_cli(main, '--repository=%s' % directory,
'deb-pkg-tools==1.22')
assert exit_code == 0
# Find the generated Debian package archives.
archives = glob.glob('%s/*.deb' % directory)
logger.debug("Found generated archive(s): %s", archives)
# Make sure the expected dependencies have been converted.
converted_dependencies = set(
parse_filename(a).name for a in archives)
expected_dependencies = set(
convert_package_name(n) for n in (
'cached-property',
'chardet',
'coloredlogs',
'deb-pkg-tools',
'executor',
'humanfriendly',
'python-debian',
'six',
))
assert expected_dependencies.issubset(converted_dependencies)
# Use deb-pkg-tools to inspect ... deb-pkg-tools :-)
pathname = find_package_archive(
archives, fix_name_prefix('python-deb-pkg-tools'))
metadata, contents = inspect_package(pathname)
logger.debug("Metadata of generated package: %s", dict(metadata))
logger.debug("Contents of generated package: %s", dict(contents))
# Make sure the dependencies defined in `stdeb.cfg' have been preserved.
for configured_dependency in [
'apt', 'apt-utils', 'dpkg-dev', 'fakeroot', 'gnupg',
'lintian'
]:
logger.debug("Checking configured dependency %s ..",
configured_dependency)
assert metadata['Depends'].matches(
configured_dependency) is not None
# Make sure the dependencies defined in `setup.py' have been preserved.
expected_dependencies = [
convert_package_name(n) for n in (
'chardet',
'coloredlogs',
'executor',
'humanfriendly',
'python-debian',
)
]
for python_dependency in expected_dependencies:
logger.debug("Checking Python dependency %s ..",
python_dependency)
assert metadata['Depends'].matches(
python_dependency) is not None