def test_password_none(self):
with captured_stdout() as stdout:
id = 'testid'
password = None
mastodon_url = 'http://test.mastodon.com'
kafka_url = 'kafka.test.com:9092'
kafka_topic = 'test_topic'
m.kafka_toot(id, password, mastodon_url, kafka_url, kafka_topic)
lines = stdout.getvalue().splitlines()
self.assertEqual(lines[0], 'ERROR: PASSWORD env is not defined.')
def test_kafka_url_none(self):
with captured_stdout() as stdout:
id = 'testid'
password = '******'
mastodon_url = 'http://test.mastodon.com'
kafka_url = None
kafka_topic = 'test_topic'
m.kafka_toot(id, password, mastodon_url, kafka_url, kafka_topic)
lines = stdout.getvalue().splitlines()
self.assertEqual(lines[0], 'ERROR: KAFKA_URL env is not defined.')
def test_broken_pipe_in_stdout_write(self):
"""
Test sys.stdout.write() raising BrokenPipeError.
This error _should_ trigger an error in the logging framework.
"""
record = self._make_log_record()
with captured_stdout() as stdout:
handler = ColorizedStreamHandler(stream=stdout)
with patch('sys.stdout.write') as mock_write:
mock_write.side_effect = _make_broken_pipe_error()
with pytest.raises(BrokenStdoutLoggingError):
handler.emit(record)
def test_broken_pipe_in_stdout_write(self):
"""
Test sys.stdout.write() raising BrokenPipeError.
This error _should_ trigger an error in the logging framework.
"""
record = self._make_log_record()
with captured_stdout() as stdout:
handler = ColorizedStreamHandler(stream=stdout)
with patch('sys.stdout.write') as mock_write:
mock_write.side_effect = _make_broken_pipe_error()
with pytest.raises(BrokenStdoutLoggingError):
handler.emit(record)
def test_broken_pipe_in_stdout_flush(self):
"""
Test sys.stdout.flush() raising BrokenPipeError.
This error _should_ trigger an error in the logging framework.
"""
record = self._make_log_record()
with captured_stdout() as stdout:
handler = ColorizedStreamHandler(stream=stdout)
with patch('sys.stdout.flush') as mock_flush:
mock_flush.side_effect = _make_broken_pipe_error()
with pytest.raises(BrokenStdoutLoggingError):
handler.emit(record)
output = stdout.getvalue()
# Sanity check that the log record was written, since flush() happens
# after write().
assert output.startswith('my error')
def test_broken_pipe_in_stdout_flush(self):
"""
Test sys.stdout.flush() raising BrokenPipeError.
This error _should_ trigger an error in the logging framework.
"""
record = self._make_log_record()
with captured_stdout() as stdout:
handler = ColorizedStreamHandler(stream=stdout)
with patch('sys.stdout.flush') as mock_flush:
mock_flush.side_effect = _make_broken_pipe_error()
with pytest.raises(BrokenStdoutLoggingError):
handler.emit(record)
output = stdout.getvalue()
# Sanity check that the log record was written, since flush() happens
# after write().
assert output.startswith('my error')
def install_unpacked_wheel(
name, # type: str
wheeldir, # type: str
scheme, # type: Mapping[str, str]
req_description, # type: str
pycompile=True, # type: bool
warn_script_location=True # type: bool
):
# type: (...) -> None
"""Install a wheel.
:param name: Name of the project to install
:param wheeldir: Base directory of the unpacked wheel
:param scheme: Distutils scheme dictating the install directories
:param req_description: String used in place of the requirement, for
logging
:param pycompile: Whether to byte-compile installed Python files
:param warn_script_location: Whether to check that scripts are installed
into a directory on PATH
"""
# TODO: Investigate and break this up.
# TODO: Look into moving this into a dedicated class for representing an
# installation.
if root_is_purelib(name, wheeldir):
lib_dir = scheme['purelib']
else:
lib_dir = scheme['platlib']
info_dir = [] # type: List[str]
data_dirs = []
source = wheeldir.rstrip(os.path.sep) + os.path.sep
# Record details of the files moved
# installed = files copied from the wheel to the destination
# changed = files changed while installing (scripts #! line typically)
# generated = files newly generated during the install (script wrappers)
installed = {} # type: Dict[str, str]
changed = set()
generated = [] # type: List[str]
# Compile all of the pyc files that we're going to be installing
if pycompile:
with captured_stdout() as stdout:
with warnings.catch_warnings():
warnings.filterwarnings('ignore')
compileall.compile_dir(source, force=True, quiet=True)
logger.debug(stdout.getvalue())
def record_installed(srcfile, destfile, modified=False):
"""Map archive RECORD paths to installation RECORD paths."""
oldpath = normpath(srcfile, wheeldir)
newpath = normpath(destfile, lib_dir)
installed[oldpath] = newpath
if modified:
changed.add(destfile)
def clobber(source, dest, is_base, fixer=None, filter=None):
ensure_dir(dest) # common for the 'include' path
for dir, subdirs, files in os.walk(source):
basedir = dir[len(source):].lstrip(os.path.sep)
destdir = os.path.join(dest, basedir)
if is_base and basedir.split(os.path.sep, 1)[0].endswith('.data'):
continue
for s in subdirs:
destsubdir = os.path.join(dest, basedir, s)
if is_base and basedir == '' and destsubdir.endswith('.data'):
data_dirs.append(s)
continue
elif (
is_base and
s.endswith('.dist-info') and
canonicalize_name(s).startswith(canonicalize_name(name))
):
assert not info_dir, (
'Multiple .dist-info directories: {}, '.format(
destsubdir
) + ', '.join(info_dir)
)
info_dir.append(destsubdir)
for f in files:
# Skip unwanted files
if filter and filter(f):
continue
srcfile = os.path.join(dir, f)
destfile = os.path.join(dest, basedir, f)
# directory creation is lazy and after the file filtering above
# to ensure we don't install empty dirs; empty dirs can't be
# uninstalled.
ensure_dir(destdir)
# copyfile (called below) truncates the destination if it
# exists and then writes the new contents. This is fine in most
# cases, but can cause a segfault if pip has loaded a shared
# object (e.g. from pyopenssl through its vendored urllib3)
# Since the shared object is mmap'd an attempt to call a
# symbol in it will then cause a segfault. Unlinking the file
# allows writing of new contents while allowing the process to
# continue to use the old copy.
if os.path.exists(destfile):
os.unlink(destfile)
# We use copyfile (not move, copy, or copy2) to be extra sure
# that we are not moving directories over (copyfile fails for
# directories) as well as to ensure that we are not copying
# over any metadata because we want more control over what
# metadata we actually copy over.
shutil.copyfile(srcfile, destfile)
# Copy over the metadata for the file, currently this only
# includes the atime and mtime.
st = os.stat(srcfile)
if hasattr(os, "utime"):
os.utime(destfile, (st.st_atime, st.st_mtime))
# If our file is executable, then make our destination file
# executable.
if os.access(srcfile, os.X_OK):
st = os.stat(srcfile)
permissions = (
st.st_mode | stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH
)
os.chmod(destfile, permissions)
changed = False
if fixer:
changed = fixer(destfile)
record_installed(srcfile, destfile, changed)
clobber(source, lib_dir, True)
assert info_dir, "{} .dist-info directory not found".format(
req_description
)
# Get the defined entry points
ep_file = os.path.join(info_dir[0], 'entry_points.txt')
console, gui = get_entrypoints(ep_file)
def is_entrypoint_wrapper(name):
# EP, EP.exe and EP-script.py are scripts generated for
# entry point EP by setuptools
if name.lower().endswith('.exe'):
matchname = name[:-4]
elif name.lower().endswith('-script.py'):
matchname = name[:-10]
elif name.lower().endswith(".pya"):
matchname = name[:-4]
else:
matchname = name
# Ignore setuptools-generated scripts
return (matchname in console or matchname in gui)
for datadir in data_dirs:
fixer = None
filter = None
for subdir in os.listdir(os.path.join(wheeldir, datadir)):
fixer = None
if subdir == 'scripts':
fixer = fix_script
filter = is_entrypoint_wrapper
source = os.path.join(wheeldir, datadir, subdir)
dest = scheme[subdir]
clobber(source, dest, False, fixer=fixer, filter=filter)
maker = PipScriptMaker(None, scheme['scripts'])
# Ensure old scripts are overwritten.
# See https://github.com/pypa/pip/issues/1800
maker.clobber = True
# Ensure we don't generate any variants for scripts because this is almost
# never what somebody wants.
# See https://bitbucket.org/pypa/distlib/issue/35/
maker.variants = {''}
# This is required because otherwise distlib creates scripts that are not
# executable.
# See https://bitbucket.org/pypa/distlib/issue/32/
maker.set_mode = True
scripts_to_generate = []
# Special case pip and setuptools to generate versioned wrappers
#
# The issue is that some projects (specifically, pip and setuptools) use
# code in setup.py to create "versioned" entry points - pip2.7 on Python
# 2.7, pip3.3 on Python 3.3, etc. But these entry points are baked into
# the wheel metadata at build time, and so if the wheel is installed with
# a *different* version of Python the entry points will be wrong. The
# correct fix for this is to enhance the metadata to be able to describe
# such versioned entry points, but that won't happen till Metadata 2.0 is
# available.
# In the meantime, projects using versioned entry points will either have
# incorrect versioned entry points, or they will not be able to distribute
# "universal" wheels (i.e., they will need a wheel per Python version).
#
# Because setuptools and pip are bundled with _ensurepip and virtualenv,
# we need to use universal wheels. So, as a stopgap until Metadata 2.0, we
# override the versioned entry points in the wheel and generate the
# correct ones. This code is purely a short-term measure until Metadata 2.0
# is available.
#
# To add the level of hack in this section of code, in order to support
# ensurepip this code will look for an ``ENSUREPIP_OPTIONS`` environment
# variable which will control which version scripts get installed.
#
# ENSUREPIP_OPTIONS=altinstall
# - Only pipX.Y and easy_install-X.Y will be generated and installed
# ENSUREPIP_OPTIONS=install
# - pipX.Y, pipX, easy_install-X.Y will be generated and installed. Note
# that this option is technically if ENSUREPIP_OPTIONS is set and is
# not altinstall
# DEFAULT
# - The default behavior is to install pip, pipX, pipX.Y, easy_install
# and easy_install-X.Y.
pip_script = console.pop('pip', None)
if pip_script:
if "ENSUREPIP_OPTIONS" not in os.environ:
scripts_to_generate.append('pip = ' + pip_script)
if os.environ.get("ENSUREPIP_OPTIONS", "") != "altinstall":
scripts_to_generate.append(
'pip%s = %s' % (sys.version_info[0], pip_script)
)
scripts_to_generate.append(
'pip%s = %s' % (get_major_minor_version(), pip_script)
)
# Delete any other versioned pip entry points
pip_ep = [k for k in console if re.match(r'pip(\d(\.\d)?)?$', k)]
for k in pip_ep:
del console[k]
easy_install_script = console.pop('easy_install', None)
if easy_install_script:
if "ENSUREPIP_OPTIONS" not in os.environ:
scripts_to_generate.append(
'easy_install = ' + easy_install_script
)
scripts_to_generate.append(
'easy_install-%s = %s' % (
get_major_minor_version(), easy_install_script
)
)
# Delete any other versioned easy_install entry points
easy_install_ep = [
k for k in console if re.match(r'easy_install(-\d\.\d)?$', k)
]
for k in easy_install_ep:
del console[k]
# Generate the console and GUI entry points specified in the wheel
scripts_to_generate.extend(
'%s = %s' % kv for kv in console.items()
)
gui_scripts_to_generate = [
'%s = %s' % kv for kv in gui.items()
]
generated_console_scripts = [] # type: List[str]
try:
generated_console_scripts = maker.make_multiple(scripts_to_generate)
generated.extend(generated_console_scripts)
generated.extend(
maker.make_multiple(gui_scripts_to_generate, {'gui': True})
)
except MissingCallableSuffix as e:
entry = e.args[0]
raise InstallationError(
"Invalid script entry point: {} for req: {} - A callable "
"suffix is required. Cf https://packaging.python.org/en/"
"latest/distributing.html#console-scripts for more "
"information.".format(entry, req_description)
)
if warn_script_location:
msg = message_about_scripts_not_on_PATH(generated_console_scripts)
if msg is not None:
logger.warning(msg)
# Record pip as the installer
installer = os.path.join(info_dir[0], 'INSTALLER')
temp_installer = os.path.join(info_dir[0], 'INSTALLER.pip')
with open(temp_installer, 'wb') as installer_file:
installer_file.write(b'pip\n')
shutil.move(temp_installer, installer)
generated.append(installer)
# Record details of all files installed
record = os.path.join(info_dir[0], 'RECORD')
temp_record = os.path.join(info_dir[0], 'RECORD.pip')
with open_for_csv(record, 'r') as record_in:
with open_for_csv(temp_record, 'w+') as record_out:
reader = csv.reader(record_in)
outrows = get_csv_rows_for_installed(
reader, installed=installed, changed=changed,
generated=generated, lib_dir=lib_dir,
)
writer = csv.writer(record_out)
# Sort to simplify testing.
for row in sorted_outrows(outrows):
writer.writerow(row)
shutil.move(temp_record, record)
def install_unpacked_wheel(
name, # type: str
wheeldir, # type: str
wheel_zip, # type: ZipFile
scheme, # type: Scheme
req_description, # type: str
pycompile=True, # type: bool
warn_script_location=True, # type: bool
direct_url=None, # type: Optional[DirectUrl]
):
# type: (...) -> None
"""Install a wheel.
:param name: Name of the project to install
:param wheeldir: Base directory of the unpacked wheel
:param wheel_zip: open ZipFile for wheel being installed
:param scheme: Distutils scheme dictating the install directories
:param req_description: String used in place of the requirement, for
logging
:param pycompile: Whether to byte-compile installed Python files
:param warn_script_location: Whether to check that scripts are installed
into a directory on PATH
:raises UnsupportedWheel:
* when the directory holds an unpacked wheel with incompatible
Wheel-Version
* when the .dist-info dir does not match the wheel
"""
# TODO: Investigate and break this up.
# TODO: Look into moving this into a dedicated class for representing an
# installation.
source = wheeldir.rstrip(os.path.sep) + os.path.sep
info_dir, metadata = parse_wheel(wheel_zip, name)
if wheel_root_is_purelib(metadata):
lib_dir = scheme.purelib
else:
lib_dir = scheme.platlib
subdirs = os.listdir(source)
data_dirs = [s for s in subdirs if s.endswith('.data')]
# Record details of the files moved
# installed = files copied from the wheel to the destination
# changed = files changed while installing (scripts #! line typically)
# generated = files newly generated during the install (script wrappers)
installed = {} # type: Dict[RecordPath, RecordPath]
changed = set() # type: Set[RecordPath]
generated = [] # type: List[str]
# Compile all of the pyc files that we're going to be installing
if pycompile:
with captured_stdout() as stdout:
with warnings.catch_warnings():
warnings.filterwarnings('ignore')
compileall.compile_dir(source, force=True, quiet=True)
logger.debug(stdout.getvalue())
def record_installed(srcfile, destfile, modified=False):
# type: (text_type, text_type, bool) -> None
"""Map archive RECORD paths to installation RECORD paths."""
oldpath = _fs_to_record_path(srcfile, wheeldir)
newpath = _fs_to_record_path(destfile, lib_dir)
installed[oldpath] = newpath
if modified:
changed.add(_fs_to_record_path(destfile))
def clobber(
source, # type: text_type
dest, # type: text_type
is_base, # type: bool
fixer=None, # type: Optional[Callable[[text_type], Any]]
filter=None # type: Optional[Callable[[text_type], bool]]
):
# type: (...) -> None
ensure_dir(dest) # common for the 'include' path
for dir, subdirs, files in os.walk(source):
basedir = dir[len(source):].lstrip(os.path.sep)
destdir = os.path.join(dest, basedir)
if is_base and basedir == '':
subdirs[:] = [s for s in subdirs if not s.endswith('.data')]
for f in files:
# Skip unwanted files
if filter and filter(f):
continue
srcfile = os.path.join(dir, f)
destfile = os.path.join(dest, basedir, f)
# directory creation is lazy and after the file filtering above
# to ensure we don't install empty dirs; empty dirs can't be
# uninstalled.
ensure_dir(destdir)
# copyfile (called below) truncates the destination if it
# exists and then writes the new contents. This is fine in most
# cases, but can cause a segfault if pip has loaded a shared
# object (e.g. from pyopenssl through its vendored urllib3)
# Since the shared object is mmap'd an attempt to call a
# symbol in it will then cause a segfault. Unlinking the file
# allows writing of new contents while allowing the process to
# continue to use the old copy.
if os.path.exists(destfile):
os.unlink(destfile)
# We use copyfile (not move, copy, or copy2) to be extra sure
# that we are not moving directories over (copyfile fails for
# directories) as well as to ensure that we are not copying
# over any metadata because we want more control over what
# metadata we actually copy over.
shutil.copyfile(srcfile, destfile)
# Copy over the metadata for the file, currently this only
# includes the atime and mtime.
st = os.stat(srcfile)
if hasattr(os, "utime"):
os.utime(destfile, (st.st_atime, st.st_mtime))
# If our file is executable, then make our destination file
# executable.
if os.access(srcfile, os.X_OK):
st = os.stat(srcfile)
permissions = (st.st_mode | stat.S_IXUSR | stat.S_IXGRP
| stat.S_IXOTH)
os.chmod(destfile, permissions)
changed = False
if fixer:
changed = fixer(destfile)
record_installed(srcfile, destfile, changed)
clobber(
ensure_text(source, encoding=sys.getfilesystemencoding()),
ensure_text(lib_dir, encoding=sys.getfilesystemencoding()),
True,
)
dest_info_dir = os.path.join(lib_dir, info_dir)
# Get the defined entry points
ep_file = os.path.join(dest_info_dir, 'entry_points.txt')
console, gui = get_entrypoints(ep_file)
def is_entrypoint_wrapper(name):
# type: (text_type) -> bool
# EP, EP.exe and EP-script.py are scripts generated for
# entry point EP by setuptools
if name.lower().endswith('.exe'):
matchname = name[:-4]
elif name.lower().endswith('-script.py'):
matchname = name[:-10]
elif name.lower().endswith(".pya"):
matchname = name[:-4]
else:
matchname = name
# Ignore setuptools-generated scripts
return (matchname in console or matchname in gui)
for datadir in data_dirs:
fixer = None
filter = None
for subdir in os.listdir(os.path.join(wheeldir, datadir)):
fixer = None
if subdir == 'scripts':
fixer = fix_script
filter = is_entrypoint_wrapper
source = os.path.join(wheeldir, datadir, subdir)
dest = getattr(scheme, subdir)
clobber(
ensure_text(source, encoding=sys.getfilesystemencoding()),
ensure_text(dest, encoding=sys.getfilesystemencoding()),
False,
fixer=fixer,
filter=filter,
)
maker = PipScriptMaker(None, scheme.scripts)
# Ensure old scripts are overwritten.
# See https://github.com/pypa/pip/issues/1800
maker.clobber = True
# Ensure we don't generate any variants for scripts because this is almost
# never what somebody wants.
# See https://bitbucket.org/pypa/distlib/issue/35/
maker.variants = {''}
# This is required because otherwise distlib creates scripts that are not
# executable.
# See https://bitbucket.org/pypa/distlib/issue/32/
maker.set_mode = True
scripts_to_generate = []
# Special case pip and setuptools to generate versioned wrappers
#
# The issue is that some projects (specifically, pip and setuptools) use
# code in setup.py to create "versioned" entry points - pip2.7 on Python
# 2.7, pip3.3 on Python 3.3, etc. But these entry points are baked into
# the wheel metadata at build time, and so if the wheel is installed with
# a *different* version of Python the entry points will be wrong. The
# correct fix for this is to enhance the metadata to be able to describe
# such versioned entry points, but that won't happen till Metadata 2.0 is
# available.
# In the meantime, projects using versioned entry points will either have
# incorrect versioned entry points, or they will not be able to distribute
# "universal" wheels (i.e., they will need a wheel per Python version).
#
# Because setuptools and pip are bundled with _ensurepip and virtualenv,
# we need to use universal wheels. So, as a stopgap until Metadata 2.0, we
# override the versioned entry points in the wheel and generate the
# correct ones. This code is purely a short-term measure until Metadata 2.0
# is available.
#
# To add the level of hack in this section of code, in order to support
# ensurepip this code will look for an ``ENSUREPIP_OPTIONS`` environment
# variable which will control which version scripts get installed.
#
# ENSUREPIP_OPTIONS=altinstall
# - Only pipX.Y and easy_install-X.Y will be generated and installed
# ENSUREPIP_OPTIONS=install
# - pipX.Y, pipX, easy_install-X.Y will be generated and installed. Note
# that this option is technically if ENSUREPIP_OPTIONS is set and is
# not altinstall
# DEFAULT
# - The default behavior is to install pip, pipX, pipX.Y, easy_install
# and easy_install-X.Y.
pip_script = console.pop('pip', None)
if pip_script:
if "ENSUREPIP_OPTIONS" not in os.environ:
scripts_to_generate.append('pip = ' + pip_script)
if os.environ.get("ENSUREPIP_OPTIONS", "") != "altinstall":
scripts_to_generate.append('pip{} = {}'.format(
sys.version_info[0], pip_script))
scripts_to_generate.append('pip{} = {}'.format(
get_major_minor_version(), pip_script))
# Delete any other versioned pip entry points
pip_ep = [k for k in console if re.match(r'pip(\d(\.\d)?)?$', k)]
for k in pip_ep:
del console[k]
easy_install_script = console.pop('easy_install', None)
if easy_install_script:
if "ENSUREPIP_OPTIONS" not in os.environ:
scripts_to_generate.append('easy_install = ' + easy_install_script)
scripts_to_generate.append('easy_install-{} = {}'.format(
get_major_minor_version(), easy_install_script))
# Delete any other versioned easy_install entry points
easy_install_ep = [
k for k in console if re.match(r'easy_install(-\d\.\d)?$', k)
]
for k in easy_install_ep:
del console[k]
# Generate the console and GUI entry points specified in the wheel
scripts_to_generate.extend(starmap('{} = {}'.format, console.items()))
gui_scripts_to_generate = list(starmap('{} = {}'.format, gui.items()))
generated_console_scripts = [] # type: List[str]
try:
generated_console_scripts = maker.make_multiple(scripts_to_generate)
generated.extend(generated_console_scripts)
generated.extend(
maker.make_multiple(gui_scripts_to_generate, {'gui': True}))
except MissingCallableSuffix as e:
entry = e.args[0]
raise InstallationError(
"Invalid script entry point: {} for req: {} - A callable "
"suffix is required. Cf https://packaging.python.org/"
"specifications/entry-points/#use-for-scripts for more "
"information.".format(entry, req_description))
if warn_script_location:
msg = message_about_scripts_not_on_PATH(generated_console_scripts)
if msg is not None:
logger.warning(msg)
generated_file_mode = 0o666 & ~current_umask()
@contextlib.contextmanager
def _generate_file(path, **kwargs):
# type: (str, **Any) -> Iterator[NamedTemporaryFileResult]
with adjacent_tmp_file(path, **kwargs) as f:
yield f
os.chmod(f.name, generated_file_mode)
replace(f.name, path)
# Record pip as the installer
installer_path = os.path.join(dest_info_dir, 'INSTALLER')
with _generate_file(installer_path) as installer_file:
installer_file.write(b'pip\n')
generated.append(installer_path)
# Record the PEP 610 direct URL reference
if direct_url is not None:
direct_url_path = os.path.join(dest_info_dir, DIRECT_URL_METADATA_NAME)
with _generate_file(direct_url_path) as direct_url_file:
direct_url_file.write(direct_url.to_json().encode("utf-8"))
generated.append(direct_url_path)
# Record details of all files installed
record_path = os.path.join(dest_info_dir, 'RECORD')
with open(record_path, **csv_io_kwargs('r')) as record_file:
rows = get_csv_rows_for_installed(csv.reader(record_file),
installed=installed,
changed=changed,
generated=generated,
lib_dir=lib_dir)
with _generate_file(record_path, **csv_io_kwargs('w')) as record_file:
# The type mypy infers for record_file is different for Python 3
# (typing.IO[Any]) and Python 2 (typing.BinaryIO). We explicitly
# cast to typing.IO[str] as a workaround.
writer = csv.writer(cast('IO[str]', record_file))
writer.writerows(_normalized_outrows(rows))
def _install_wheel(
name, # type: str
wheel_zip, # type: ZipFile
wheel_path, # type: str
scheme, # type: Scheme
pycompile=True, # type: bool
warn_script_location=True, # type: bool
direct_url=None, # type: Optional[DirectUrl]
requested=False, # type: bool
):
# type: (...) -> None
"""Install a wheel.
:param name: Name of the project to install
:param wheel_zip: open ZipFile for wheel being installed
:param scheme: Distutils scheme dictating the install directories
:param req_description: String used in place of the requirement, for
logging
:param pycompile: Whether to byte-compile installed Python files
:param warn_script_location: Whether to check that scripts are installed
into a directory on PATH
:raises UnsupportedWheel:
* when the directory holds an unpacked wheel with incompatible
Wheel-Version
* when the .dist-info dir does not match the wheel
"""
info_dir, metadata = parse_wheel(wheel_zip, name)
if wheel_root_is_purelib(metadata):
lib_dir = scheme.purelib
else:
lib_dir = scheme.platlib
# Record details of the files moved
# installed = files copied from the wheel to the destination
# changed = files changed while installing (scripts #! line typically)
# generated = files newly generated during the install (script wrappers)
installed = {} # type: Dict[RecordPath, RecordPath]
changed = set() # type: Set[RecordPath]
generated = [] # type: List[str]
def record_installed(srcfile, destfile, modified=False):
# type: (RecordPath, str, bool) -> None
"""Map archive RECORD paths to installation RECORD paths."""
newpath = _fs_to_record_path(destfile, lib_dir)
installed[srcfile] = newpath
if modified:
changed.add(_fs_to_record_path(destfile))
def all_paths():
# type: () -> Iterable[RecordPath]
names = wheel_zip.namelist()
# If a flag is set, names may be unicode in Python 2. We convert to
# text explicitly so these are valid for lookup in RECORD.
decoded_names = map(ensure_text, names)
for name in decoded_names:
yield cast("RecordPath", name)
def is_dir_path(path):
# type: (RecordPath) -> bool
return path.endswith("/")
def assert_no_path_traversal(dest_dir_path, target_path):
# type: (str, str) -> None
if not is_within_directory(dest_dir_path, target_path):
message = (
"The wheel {!r} has a file {!r} trying to install"
" outside the target directory {!r}"
)
raise InstallationError(
message.format(wheel_path, target_path, dest_dir_path)
)
def root_scheme_file_maker(zip_file, dest):
# type: (ZipFile, str) -> Callable[[RecordPath], File]
def make_root_scheme_file(record_path):
# type: (RecordPath) -> File
normed_path = os.path.normpath(record_path)
dest_path = os.path.join(dest, normed_path)
assert_no_path_traversal(dest, dest_path)
return ZipBackedFile(record_path, dest_path, zip_file)
return make_root_scheme_file
def data_scheme_file_maker(zip_file, scheme):
# type: (ZipFile, Scheme) -> Callable[[RecordPath], File]
scheme_paths = {}
for key in SCHEME_KEYS:
encoded_key = ensure_text(key)
scheme_paths[encoded_key] = ensure_text(
getattr(scheme, key), encoding=sys.getfilesystemencoding()
)
def make_data_scheme_file(record_path):
# type: (RecordPath) -> File
normed_path = os.path.normpath(record_path)
try:
_, scheme_key, dest_subpath = normed_path.split(os.path.sep, 2)
except ValueError:
message = (
"Unexpected file in {}: {!r}. .data directory contents"
" should be named like: '<scheme key>/<path>'."
).format(wheel_path, record_path)
raise InstallationError(message)
try:
scheme_path = scheme_paths[scheme_key]
except KeyError:
valid_scheme_keys = ", ".join(sorted(scheme_paths))
message = (
"Unknown scheme key used in {}: {} (for file {!r}). .data"
" directory contents should be in subdirectories named"
" with a valid scheme key ({})"
).format(
wheel_path, scheme_key, record_path, valid_scheme_keys
)
raise InstallationError(message)
dest_path = os.path.join(scheme_path, dest_subpath)
assert_no_path_traversal(scheme_path, dest_path)
return ZipBackedFile(record_path, dest_path, zip_file)
return make_data_scheme_file
def is_data_scheme_path(path):
# type: (RecordPath) -> bool
return path.split("/", 1)[0].endswith(".data")
paths = all_paths()
file_paths = filterfalse(is_dir_path, paths)
root_scheme_paths, data_scheme_paths = partition(
is_data_scheme_path, file_paths
)
make_root_scheme_file = root_scheme_file_maker(
wheel_zip,
ensure_text(lib_dir, encoding=sys.getfilesystemencoding()),
)
files = map(make_root_scheme_file, root_scheme_paths)
def is_script_scheme_path(path):
# type: (RecordPath) -> bool
parts = path.split("/", 2)
return (
len(parts) > 2 and
parts[0].endswith(".data") and
parts[1] == "scripts"
)
other_scheme_paths, script_scheme_paths = partition(
is_script_scheme_path, data_scheme_paths
)
make_data_scheme_file = data_scheme_file_maker(wheel_zip, scheme)
other_scheme_files = map(make_data_scheme_file, other_scheme_paths)
files = chain(files, other_scheme_files)
# Get the defined entry points
distribution = pkg_resources_distribution_for_wheel(
wheel_zip, name, wheel_path
)
console, gui = get_entrypoints(distribution)
def is_entrypoint_wrapper(file):
# type: (File) -> bool
# EP, EP.exe and EP-script.py are scripts generated for
# entry point EP by setuptools
path = file.dest_path
name = os.path.basename(path)
if name.lower().endswith('.exe'):
matchname = name[:-4]
elif name.lower().endswith('-script.py'):
matchname = name[:-10]
elif name.lower().endswith(".pya"):
matchname = name[:-4]
else:
matchname = name
# Ignore setuptools-generated scripts
return (matchname in console or matchname in gui)
script_scheme_files = map(make_data_scheme_file, script_scheme_paths)
script_scheme_files = filterfalse(
is_entrypoint_wrapper, script_scheme_files
)
script_scheme_files = map(ScriptFile, script_scheme_files)
files = chain(files, script_scheme_files)
for file in files:
file.save()
record_installed(file.src_record_path, file.dest_path, file.changed)
def pyc_source_file_paths():
# type: () -> Iterator[str]
# We de-duplicate installation paths, since there can be overlap (e.g.
# file in .data maps to same location as file in wheel root).
# Sorting installation paths makes it easier to reproduce and debug
# issues related to permissions on existing files.
for installed_path in sorted(set(installed.values())):
full_installed_path = os.path.join(lib_dir, installed_path)
if not os.path.isfile(full_installed_path):
continue
if not full_installed_path.endswith('.py'):
continue
yield full_installed_path
def pyc_output_path(path):
# type: (str) -> str
"""Return the path the pyc file would have been written to.
"""
return importlib.util.cache_from_source(path)
# Compile all of the pyc files for the installed files
if pycompile:
with captured_stdout() as stdout:
with warnings.catch_warnings():
warnings.filterwarnings('ignore')
for path in pyc_source_file_paths():
# Python 2's `compileall.compile_file` requires a str in
# error cases, so we must convert to the native type.
path_arg = ensure_str(
path, encoding=sys.getfilesystemencoding()
)
success = compileall.compile_file(
path_arg, force=True, quiet=True
)
if success:
pyc_path = pyc_output_path(path)
assert os.path.exists(pyc_path)
pyc_record_path = cast(
"RecordPath", pyc_path.replace(os.path.sep, "/")
)
record_installed(pyc_record_path, pyc_path)
logger.debug(stdout.getvalue())
maker = PipScriptMaker(None, scheme.scripts)
# Ensure old scripts are overwritten.
# See https://github.com/pypa/pip/issues/1800
maker.clobber = True
# Ensure we don't generate any variants for scripts because this is almost
# never what somebody wants.
# See https://bitbucket.org/pypa/distlib/issue/35/
maker.variants = {''}
# This is required because otherwise distlib creates scripts that are not
# executable.
# See https://bitbucket.org/pypa/distlib/issue/32/
maker.set_mode = True
# Generate the console and GUI entry points specified in the wheel
scripts_to_generate = get_console_script_specs(console)
gui_scripts_to_generate = list(starmap('{} = {}'.format, gui.items()))
generated_console_scripts = maker.make_multiple(scripts_to_generate)
generated.extend(generated_console_scripts)
generated.extend(
maker.make_multiple(gui_scripts_to_generate, {'gui': True})
)
if warn_script_location:
msg = message_about_scripts_not_on_PATH(generated_console_scripts)
if msg is not None:
logger.warning(msg)
generated_file_mode = 0o666 & ~current_umask()
@contextlib.contextmanager
def _generate_file(path, **kwargs):
# type: (str, **Any) -> Iterator[BinaryIO]
with adjacent_tmp_file(path, **kwargs) as f:
yield f
os.chmod(f.name, generated_file_mode)
replace(f.name, path)
dest_info_dir = os.path.join(lib_dir, info_dir)
# Record pip as the installer
installer_path = os.path.join(dest_info_dir, 'INSTALLER')
with _generate_file(installer_path) as installer_file:
installer_file.write(b'pip\n')
generated.append(installer_path)
# Record the PEP 610 direct URL reference
if direct_url is not None:
direct_url_path = os.path.join(dest_info_dir, DIRECT_URL_METADATA_NAME)
with _generate_file(direct_url_path) as direct_url_file:
direct_url_file.write(direct_url.to_json().encode("utf-8"))
generated.append(direct_url_path)
# Record the REQUESTED file
if requested:
requested_path = os.path.join(dest_info_dir, 'REQUESTED')
with open(requested_path, "w"):
pass
generated.append(requested_path)
record_text = distribution.get_metadata('RECORD')
record_rows = list(csv.reader(record_text.splitlines()))
rows = get_csv_rows_for_installed(
record_rows,
installed=installed,
changed=changed,
generated=generated,
lib_dir=lib_dir)
# Record details of all files installed
record_path = os.path.join(dest_info_dir, 'RECORD')
with _generate_file(record_path, **csv_io_kwargs('w')) as record_file:
# The type mypy infers for record_file is different for Python 3
# (typing.IO[Any]) and Python 2 (typing.BinaryIO). We explicitly
# cast to typing.IO[str] as a workaround.
writer = csv.writer(cast('IO[str]', record_file))
writer.writerows(_normalized_outrows(rows))
def move_wheel_files(name,
req,
wheeldir,
user=False,
home=None,
root=None,
pycompile=True,
scheme=None,
isolated=False,
prefix=None,
warn_script_location=True):
"""Install a wheel"""
if not scheme:
scheme = distutils_scheme(
name,
user=user,
home=home,
root=root,
isolated=isolated,
prefix=prefix,
)
if root_is_purelib(name, wheeldir):
lib_dir = scheme['purelib']
else:
lib_dir = scheme['platlib']
info_dir = []
data_dirs = []
source = wheeldir.rstrip(os.path.sep) + os.path.sep
# Record details of the files moved
# installed = files copied from the wheel to the destination
# changed = files changed while installing (scripts #! line typically)
# generated = files newly generated during the install (script wrappers)
installed = {}
changed = set()
generated = []
# Compile all of the pyc files that we're going to be installing
if pycompile:
with captured_stdout() as stdout:
with warnings.catch_warnings():
warnings.filterwarnings('ignore')
compileall.compile_dir(source, force=True, quiet=True)
logger.debug(stdout.getvalue())
def normpath(src, p):
return os.path.relpath(src, p).replace(os.path.sep, '/')
def record_installed(srcfile, destfile, modified=False):
"""Map archive RECORD paths to installation RECORD paths."""
oldpath = normpath(srcfile, wheeldir)
newpath = normpath(destfile, lib_dir)
installed[oldpath] = newpath
if modified:
changed.add(destfile)
def clobber(source, dest, is_base, fixer=None, filter=None):
ensure_dir(dest) # common for the 'include' path
for dir, subdirs, files in os.walk(source):
basedir = dir[len(source):].lstrip(os.path.sep)
destdir = os.path.join(dest, basedir)
if is_base and basedir.split(os.path.sep, 1)[0].endswith('.data'):
continue
for s in subdirs:
destsubdir = os.path.join(dest, basedir, s)
if is_base and basedir == '' and destsubdir.endswith('.data'):
data_dirs.append(s)
continue
elif (is_base and s.endswith('.dist-info')
and canonicalize_name(s).startswith(
canonicalize_name(req.name))):
assert not info_dir, ('Multiple .dist-info directories: ' +
destsubdir + ', ' +
', '.join(info_dir))
info_dir.append(destsubdir)
for f in files:
# Skip unwanted files
if filter and filter(f):
continue
srcfile = os.path.join(dir, f)
destfile = os.path.join(dest, basedir, f)
# directory creation is lazy and after the file filtering above
# to ensure we don't install empty dirs; empty dirs can't be
# uninstalled.
ensure_dir(destdir)
# We use copyfile (not move, copy, or copy2) to be extra sure
# that we are not moving directories over (copyfile fails for
# directories) as well as to ensure that we are not copying
# over any metadata because we want more control over what
# metadata we actually copy over.
shutil.copyfile(srcfile, destfile)
# Copy over the metadata for the file, currently this only
# includes the atime and mtime.
st = os.stat(srcfile)
if hasattr(os, "utime"):
os.utime(destfile, (st.st_atime, st.st_mtime))
# If our file is executable, then make our destination file
# executable.
if os.access(srcfile, os.X_OK):
st = os.stat(srcfile)
permissions = (st.st_mode | stat.S_IXUSR | stat.S_IXGRP
| stat.S_IXOTH)
os.chmod(destfile, permissions)
changed = False
if fixer:
changed = fixer(destfile)
record_installed(srcfile, destfile, changed)
clobber(source, lib_dir, True)
assert info_dir, "%s .dist-info directory not found" % req
# Get the defined entry points
ep_file = os.path.join(info_dir[0], 'entry_points.txt')
console, gui = get_entrypoints(ep_file)
def is_entrypoint_wrapper(name):
# EP, EP.exe and EP-script.py are scripts generated for
# entry point EP by setuptools
if name.lower().endswith('.exe'):
matchname = name[:-4]
elif name.lower().endswith('-script.py'):
matchname = name[:-10]
elif name.lower().endswith(".pya"):
matchname = name[:-4]
else:
matchname = name
# Ignore setuptools-generated scripts
return (matchname in console or matchname in gui)
for datadir in data_dirs:
fixer = None
filter = None
for subdir in os.listdir(os.path.join(wheeldir, datadir)):
fixer = None
if subdir == 'scripts':
fixer = fix_script
filter = is_entrypoint_wrapper
source = os.path.join(wheeldir, datadir, subdir)
dest = scheme[subdir]
clobber(source, dest, False, fixer=fixer, filter=filter)
maker = ScriptMaker(None, scheme['scripts'])
# Ensure old scripts are overwritten.
# See https://github.com/pypa/pip/issues/1800
maker.clobber = True
# Ensure we don't generate any variants for scripts because this is almost
# never what somebody wants.
# See https://bitbucket.org/pypa/distlib/issue/35/
maker.variants = {''}
# This is required because otherwise distlib creates scripts that are not
# executable.
# See https://bitbucket.org/pypa/distlib/issue/32/
maker.set_mode = True
# Simplify the script and fix the fact that the default script swallows
# every single stack trace.
# See https://bitbucket.org/pypa/distlib/issue/34/
# See https://bitbucket.org/pypa/distlib/issue/33/
def _get_script_text(entry):
if entry.suffix is None:
raise InstallationError(
"Invalid script entry point: %s for req: %s - A callable "
"suffix is required. Cf https://packaging.python.org/en/"
"latest/distributing.html#console-scripts for more "
"information." % (entry, req))
return maker.script_template % {
"module": entry.prefix,
"import_name": entry.suffix.split(".")[0],
"func": entry.suffix,
}
maker._get_script_text = _get_script_text
maker.script_template = r"""# -*- coding: utf-8 -*-
import re
import sys
from %(module)s import %(import_name)s
if __name__ == '__main__':
sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
sys.exit(%(func)s())
"""
# Special case pip and setuptools to generate versioned wrappers
#
# The issue is that some projects (specifically, pip and setuptools) use
# code in setup.py to create "versioned" entry points - pip2.7 on Python
# 2.7, pip3.3 on Python 3.3, etc. But these entry points are baked into
# the wheel metadata at build time, and so if the wheel is installed with
# a *different* version of Python the entry points will be wrong. The
# correct fix for this is to enhance the metadata to be able to describe
# such versioned entry points, but that won't happen till Metadata 2.0 is
# available.
# In the meantime, projects using versioned entry points will either have
# incorrect versioned entry points, or they will not be able to distribute
# "universal" wheels (i.e., they will need a wheel per Python version).
#
# Because setuptools and pip are bundled with _ensurepip and virtualenv,
# we need to use universal wheels. So, as a stopgap until Metadata 2.0, we
# override the versioned entry points in the wheel and generate the
# correct ones. This code is purely a short-term measure until Metadata 2.0
# is available.
#
# To add the level of hack in this section of code, in order to support
# ensurepip this code will look for an ``ENSUREPIP_OPTIONS`` environment
# variable which will control which version scripts get installed.
#
# ENSUREPIP_OPTIONS=altinstall
# - Only pipX.Y and easy_install-X.Y will be generated and installed
# ENSUREPIP_OPTIONS=install
# - pipX.Y, pipX, easy_install-X.Y will be generated and installed. Note
# that this option is technically if ENSUREPIP_OPTIONS is set and is
# not altinstall
# DEFAULT
# - The default behavior is to install pip, pipX, pipX.Y, easy_install
# and easy_install-X.Y.
pip_script = console.pop('pip', None)
if pip_script:
if "ENSUREPIP_OPTIONS" not in os.environ:
spec = 'pip = ' + pip_script
generated.extend(maker.make(spec))
if os.environ.get("ENSUREPIP_OPTIONS", "") != "altinstall":
spec = 'pip%s = %s' % (sys.version[:1], pip_script)
generated.extend(maker.make(spec))
spec = 'pip%s = %s' % (sys.version[:3], pip_script)
generated.extend(maker.make(spec))
# Delete any other versioned pip entry points
pip_ep = [k for k in console if re.match(r'pip(\d(\.\d)?)?$', k)]
for k in pip_ep:
del console[k]
easy_install_script = console.pop('easy_install', None)
if easy_install_script:
if "ENSUREPIP_OPTIONS" not in os.environ:
spec = 'easy_install = ' + easy_install_script
generated.extend(maker.make(spec))
spec = 'easy_install-%s = %s' % (sys.version[:3], easy_install_script)
generated.extend(maker.make(spec))
# Delete any other versioned easy_install entry points
easy_install_ep = [
k for k in console if re.match(r'easy_install(-\d\.\d)?$', k)
]
for k in easy_install_ep:
del console[k]
# Generate the console and GUI entry points specified in the wheel
if len(console) > 0:
generated_console_scripts = maker.make_multiple(
['%s = %s' % kv for kv in console.items()])
generated.extend(generated_console_scripts)
if warn_script_location:
msg = message_about_scripts_not_on_PATH(generated_console_scripts)
if msg is not None:
logger.warn(msg)
if len(gui) > 0:
generated.extend(
maker.make_multiple(['%s = %s' % kv for kv in gui.items()],
{'gui': True}))
# Record pip as the installer
installer = os.path.join(info_dir[0], 'INSTALLER')
temp_installer = os.path.join(info_dir[0], 'INSTALLER.pip')
with open(temp_installer, 'wb') as installer_file:
installer_file.write(b'pip\n')
shutil.move(temp_installer, installer)
generated.append(installer)
# Record details of all files installed
record = os.path.join(info_dir[0], 'RECORD')
temp_record = os.path.join(info_dir[0], 'RECORD.pip')
with open_for_csv(record, 'r') as record_in:
with open_for_csv(temp_record, 'w+') as record_out:
reader = csv.reader(record_in)
writer = csv.writer(record_out)
for row in reader:
row[0] = installed.pop(row[0], row[0])
if row[0] in changed:
row[1], row[2] = rehash(row[0])
writer.writerow(row)
for f in generated:
h, l = rehash(f)
writer.writerow((normpath(f, lib_dir), h, l))
for f in installed:
writer.writerow((installed[f], '', ''))
shutil.move(temp_record, record)
def move_wheel_files(name, req, wheeldir, user=False, home=None, root=None,
pycompile=True, scheme=None, isolated=False, prefix=None,
warn_script_location=True):
"""Install a wheel"""
if not scheme:
scheme = distutils_scheme(
name, user=user, home=home, root=root, isolated=isolated,
prefix=prefix,
)
if root_is_purelib(name, wheeldir):
lib_dir = scheme['purelib']
else:
lib_dir = scheme['platlib']
info_dir = []
data_dirs = []
source = wheeldir.rstrip(os.path.sep) + os.path.sep
# Record details of the files moved
# installed = files copied from the wheel to the destination
# changed = files changed while installing (scripts #! line typically)
# generated = files newly generated during the install (script wrappers)
installed = {}
changed = set()
generated = []
# Compile all of the pyc files that we're going to be installing
if pycompile:
with captured_stdout() as stdout:
with warnings.catch_warnings():
warnings.filterwarnings('ignore')
compileall.compile_dir(source, force=True, quiet=True)
logger.debug(stdout.getvalue())
def normpath(src, p):
return os.path.relpath(src, p).replace(os.path.sep, '/')
def record_installed(srcfile, destfile, modified=False):
"""Map archive RECORD paths to installation RECORD paths."""
oldpath = normpath(srcfile, wheeldir)
newpath = normpath(destfile, lib_dir)
installed[oldpath] = newpath
if modified:
changed.add(destfile)
def clobber(source, dest, is_base, fixer=None, filter=None):
ensure_dir(dest) # common for the 'include' path
for dir, subdirs, files in os.walk(source):
basedir = dir[len(source):].lstrip(os.path.sep)
destdir = os.path.join(dest, basedir)
if is_base and basedir.split(os.path.sep, 1)[0].endswith('.data'):
continue
for s in subdirs:
destsubdir = os.path.join(dest, basedir, s)
if is_base and basedir == '' and destsubdir.endswith('.data'):
data_dirs.append(s)
continue
elif (is_base and
s.endswith('.dist-info') and
canonicalize_name(s).startswith(
canonicalize_name(req.name))):
assert not info_dir, ('Multiple .dist-info directories: ' +
destsubdir + ', ' +
', '.join(info_dir))
info_dir.append(destsubdir)
for f in files:
# Skip unwanted files
if filter and filter(f):
continue
srcfile = os.path.join(dir, f)
destfile = os.path.join(dest, basedir, f)
# directory creation is lazy and after the file filtering above
# to ensure we don't install empty dirs; empty dirs can't be
# uninstalled.
ensure_dir(destdir)
# We use copyfile (not move, copy, or copy2) to be extra sure
# that we are not moving directories over (copyfile fails for
# directories) as well as to ensure that we are not copying
# over any metadata because we want more control over what
# metadata we actually copy over.
shutil.copyfile(srcfile, destfile)
# Copy over the metadata for the file, currently this only
# includes the atime and mtime.
st = os.stat(srcfile)
if hasattr(os, "utime"):
os.utime(destfile, (st.st_atime, st.st_mtime))
# If our file is executable, then make our destination file
# executable.
if os.access(srcfile, os.X_OK):
st = os.stat(srcfile)
permissions = (
st.st_mode | stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH
)
os.chmod(destfile, permissions)
changed = False
if fixer:
changed = fixer(destfile)
record_installed(srcfile, destfile, changed)
clobber(source, lib_dir, True)
assert info_dir, "%s .dist-info directory not found" % req
# Get the defined entry points
ep_file = os.path.join(info_dir[0], 'entry_points.txt')
console, gui = get_entrypoints(ep_file)
def is_entrypoint_wrapper(name):
# EP, EP.exe and EP-script.py are scripts generated for
# entry point EP by setuptools
if name.lower().endswith('.exe'):
matchname = name[:-4]
elif name.lower().endswith('-script.py'):
matchname = name[:-10]
elif name.lower().endswith(".pya"):
matchname = name[:-4]
else:
matchname = name
# Ignore setuptools-generated scripts
return (matchname in console or matchname in gui)
for datadir in data_dirs:
fixer = None
filter = None
for subdir in os.listdir(os.path.join(wheeldir, datadir)):
fixer = None
if subdir == 'scripts':
fixer = fix_script
filter = is_entrypoint_wrapper
source = os.path.join(wheeldir, datadir, subdir)
dest = scheme[subdir]
clobber(source, dest, False, fixer=fixer, filter=filter)
maker = ScriptMaker(None, scheme['scripts'])
# Ensure old scripts are overwritten.
# See https://github.com/pypa/pip/issues/1800
maker.clobber = True
# Ensure we don't generate any variants for scripts because this is almost
# never what somebody wants.
# See https://bitbucket.org/pypa/distlib/issue/35/
maker.variants = {''}
# This is required because otherwise distlib creates scripts that are not
# executable.
# See https://bitbucket.org/pypa/distlib/issue/32/
maker.set_mode = True
# Simplify the script and fix the fact that the default script swallows
# every single stack trace.
# See https://bitbucket.org/pypa/distlib/issue/34/
# See https://bitbucket.org/pypa/distlib/issue/33/
def _get_script_text(entry):
if entry.suffix is None:
raise InstallationError(
"Invalid script entry point: %s for req: %s - A callable "
"suffix is required. Cf https://packaging.python.org/en/"
"latest/distributing.html#console-scripts for more "
"information." % (entry, req)
)
return maker.script_template % {
"module": entry.prefix,
"import_name": entry.suffix.split(".")[0],
"func": entry.suffix,
}
maker._get_script_text = _get_script_text
maker.script_template = r"""# -*- coding: utf-8 -*-
import re
import sys
from %(module)s import %(import_name)s
if __name__ == '__main__':
sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
sys.exit(%(func)s())
"""
# Special case pip and setuptools to generate versioned wrappers
#
# The issue is that some projects (specifically, pip and setuptools) use
# code in setup.py to create "versioned" entry points - pip2.7 on Python
# 2.7, pip3.3 on Python 3.3, etc. But these entry points are baked into
# the wheel metadata at build time, and so if the wheel is installed with
# a *different* version of Python the entry points will be wrong. The
# correct fix for this is to enhance the metadata to be able to describe
# such versioned entry points, but that won't happen till Metadata 2.0 is
# available.
# In the meantime, projects using versioned entry points will either have
# incorrect versioned entry points, or they will not be able to distribute
# "universal" wheels (i.e., they will need a wheel per Python version).
#
# Because setuptools and pip are bundled with _ensurepip and virtualenv,
# we need to use universal wheels. So, as a stopgap until Metadata 2.0, we
# override the versioned entry points in the wheel and generate the
# correct ones. This code is purely a short-term measure until Metadata 2.0
# is available.
#
# To add the level of hack in this section of code, in order to support
# ensurepip this code will look for an ``ENSUREPIP_OPTIONS`` environment
# variable which will control which version scripts get installed.
#
# ENSUREPIP_OPTIONS=altinstall
# - Only pipX.Y and easy_install-X.Y will be generated and installed
# ENSUREPIP_OPTIONS=install
# - pipX.Y, pipX, easy_install-X.Y will be generated and installed. Note
# that this option is technically if ENSUREPIP_OPTIONS is set and is
# not altinstall
# DEFAULT
# - The default behavior is to install pip, pipX, pipX.Y, easy_install
# and easy_install-X.Y.
pip_script = console.pop('pip', None)
if pip_script:
if "ENSUREPIP_OPTIONS" not in os.environ:
spec = 'pip = ' + pip_script
generated.extend(maker.make(spec))
if os.environ.get("ENSUREPIP_OPTIONS", "") != "altinstall":
spec = 'pip%s = %s' % (sys.version[:1], pip_script)
generated.extend(maker.make(spec))
spec = 'pip%s = %s' % (sys.version[:3], pip_script)
generated.extend(maker.make(spec))
# Delete any other versioned pip entry points
pip_ep = [k for k in console if re.match(r'pip(\d(\.\d)?)?$', k)]
for k in pip_ep:
del console[k]
easy_install_script = console.pop('easy_install', None)
if easy_install_script:
if "ENSUREPIP_OPTIONS" not in os.environ:
spec = 'easy_install = ' + easy_install_script
generated.extend(maker.make(spec))
spec = 'easy_install-%s = %s' % (sys.version[:3], easy_install_script)
generated.extend(maker.make(spec))
# Delete any other versioned easy_install entry points
easy_install_ep = [
k for k in console if re.match(r'easy_install(-\d\.\d)?$', k)
]
for k in easy_install_ep:
del console[k]
# Generate the console and GUI entry points specified in the wheel
if len(console) > 0:
generated_console_scripts = maker.make_multiple(
['%s = %s' % kv for kv in console.items()]
)
generated.extend(generated_console_scripts)
if warn_script_location:
msg = message_about_scripts_not_on_PATH(generated_console_scripts)
if msg is not None:
logger.warn(msg)
if len(gui) > 0:
generated.extend(
maker.make_multiple(
['%s = %s' % kv for kv in gui.items()],
{'gui': True}
)
)
# Record pip as the installer
installer = os.path.join(info_dir[0], 'INSTALLER')
temp_installer = os.path.join(info_dir[0], 'INSTALLER.pip')
with open(temp_installer, 'wb') as installer_file:
installer_file.write(b'pip\n')
shutil.move(temp_installer, installer)
generated.append(installer)
# Record details of all files installed
record = os.path.join(info_dir[0], 'RECORD')
temp_record = os.path.join(info_dir[0], 'RECORD.pip')
with open_for_csv(record, 'r') as record_in:
with open_for_csv(temp_record, 'w+') as record_out:
reader = csv.reader(record_in)
writer = csv.writer(record_out)
for row in reader:
row[0] = installed.pop(row[0], row[0])
if row[0] in changed:
row[1], row[2] = rehash(row[0])
writer.writerow(row)
for f in generated:
h, l = rehash(f)
writer.writerow((normpath(f, lib_dir), h, l))
for f in installed:
writer.writerow((installed[f], '', ''))
shutil.move(temp_record, record)
def pyc_output_path(path):
# type: (text_type) -> text_type
"""Return the path the pyc file would have been written to.
"""
if PY2:
if sys.flags.optimize:
return path + 'o'
else:
return path + 'c'
else:
return importlib.util.cache_from_source(path)
# Compile all of the pyc files for the installed files
if pycompile:
with captured_stdout() as stdout:
with warnings.catch_warnings():
warnings.filterwarnings('ignore')
for path in pyc_source_file_paths():
# Python 2's `compileall.compile_file` requires a str in
# error cases, so we must convert to the native type.
path_arg = ensure_str(
path, encoding=sys.getfilesystemencoding()
)
success = compileall.compile_file(
path_arg, force=True, quiet=True
)
if success:
pyc_path = pyc_output_path(path)
assert os.path.exists(pyc_path)
pyc_record_path = cast(
def install_unpacked_wheel(
name, # type: str
wheeldir, # type: str
wheel_zip, # type: ZipFile
wheel_path, # type: str
scheme, # type: Scheme
req_description, # type: str
pycompile=True, # type: bool
warn_script_location=True, # type: bool
direct_url=None, # type: Optional[DirectUrl]
requested=False, # type: bool
):
# type: (...) -> None
"""Install a wheel.
:param name: Name of the project to install
:param wheeldir: Base directory of the unpacked wheel
:param wheel_zip: open ZipFile for wheel being installed
:param scheme: Distutils scheme dictating the install directories
:param req_description: String used in place of the requirement, for
logging
:param pycompile: Whether to byte-compile installed Python files
:param warn_script_location: Whether to check that scripts are installed
into a directory on PATH
:raises UnsupportedWheel:
* when the directory holds an unpacked wheel with incompatible
Wheel-Version
* when the .dist-info dir does not match the wheel
"""
source = wheeldir.rstrip(os.path.sep) + os.path.sep
info_dir, metadata = parse_wheel(wheel_zip, name)
if wheel_root_is_purelib(metadata):
lib_dir = scheme.purelib
else:
lib_dir = scheme.platlib
# Record details of the files moved
# installed = files copied from the wheel to the destination
# changed = files changed while installing (scripts #! line typically)
# generated = files newly generated during the install (script wrappers)
installed = {} # type: Dict[RecordPath, RecordPath]
changed = set() # type: Set[RecordPath]
generated = [] # type: List[str]
def record_installed(srcfile, destfile, modified=False):
# type: (text_type, text_type, bool) -> None
"""Map archive RECORD paths to installation RECORD paths."""
oldpath = _fs_to_record_path(srcfile, wheeldir)
newpath = _fs_to_record_path(destfile, lib_dir)
installed[oldpath] = newpath
if modified:
changed.add(_fs_to_record_path(destfile))
def clobber(
source, # type: text_type
dest, # type: text_type
is_base, # type: bool
fixer=None, # type: Optional[Callable[[text_type], Any]]
filter=None # type: Optional[Callable[[text_type], bool]]
):
# type: (...) -> None
ensure_dir(dest) # common for the 'include' path
for dir, subdirs, files in os.walk(source):
basedir = dir[len(source):].lstrip(os.path.sep)
destdir = os.path.join(dest, basedir)
if is_base and basedir == '':
subdirs[:] = [s for s in subdirs if not s.endswith('.data')]
for f in files:
# Skip unwanted files
if filter and filter(f):
continue
srcfile = os.path.join(dir, f)
destfile = os.path.join(dest, basedir, f)
# directory creation is lazy and after the file filtering above
# to ensure we don't install empty dirs; empty dirs can't be
# uninstalled.
ensure_dir(destdir)
# copyfile (called below) truncates the destination if it
# exists and then writes the new contents. This is fine in most
# cases, but can cause a segfault if pip has loaded a shared
# object (e.g. from pyopenssl through its vendored urllib3)
# Since the shared object is mmap'd an attempt to call a
# symbol in it will then cause a segfault. Unlinking the file
# allows writing of new contents while allowing the process to
# continue to use the old copy.
if os.path.exists(destfile):
os.unlink(destfile)
# We use copyfile (not move, copy, or copy2) to be extra sure
# that we are not moving directories over (copyfile fails for
# directories) as well as to ensure that we are not copying
# over any metadata because we want more control over what
# metadata we actually copy over.
shutil.copyfile(srcfile, destfile)
# Copy over the metadata for the file, currently this only
# includes the atime and mtime.
st = os.stat(srcfile)
if hasattr(os, "utime"):
os.utime(destfile, (st.st_atime, st.st_mtime))
# If our file is executable, then make our destination file
# executable.
if os.access(srcfile, os.X_OK):
st = os.stat(srcfile)
permissions = (st.st_mode | stat.S_IXUSR | stat.S_IXGRP
| stat.S_IXOTH)
os.chmod(destfile, permissions)
changed = False
if fixer:
changed = fixer(destfile)
record_installed(srcfile, destfile, changed)
clobber(
ensure_text(source, encoding=sys.getfilesystemencoding()),
ensure_text(lib_dir, encoding=sys.getfilesystemencoding()),
True,
)
# Get the defined entry points
distribution = pkg_resources_distribution_for_wheel(
wheel_zip, name, wheel_path)
console, gui = get_entrypoints(distribution)
def is_entrypoint_wrapper(name):
# type: (text_type) -> bool
# EP, EP.exe and EP-script.py are scripts generated for
# entry point EP by setuptools
if name.lower().endswith('.exe'):
matchname = name[:-4]
elif name.lower().endswith('-script.py'):
matchname = name[:-10]
elif name.lower().endswith(".pya"):
matchname = name[:-4]
else:
matchname = name
# Ignore setuptools-generated scripts
return (matchname in console or matchname in gui)
# Zip file path separators must be /
subdirs = set(p.split("/", 1)[0] for p in wheel_zip.namelist())
data_dirs = [s for s in subdirs if s.endswith('.data')]
for datadir in data_dirs:
fixer = None
filter = None
for subdir in os.listdir(os.path.join(wheeldir, datadir)):
fixer = None
if subdir == 'scripts':
fixer = fix_script
filter = is_entrypoint_wrapper
full_datadir_path = os.path.join(wheeldir, datadir, subdir)
dest = getattr(scheme, subdir)
clobber(
ensure_text(full_datadir_path,
encoding=sys.getfilesystemencoding()),
ensure_text(dest, encoding=sys.getfilesystemencoding()),
False,
fixer=fixer,
filter=filter,
)
def pyc_source_file_paths():
# type: () -> Iterator[text_type]
# We de-duplicate installation paths, since there can be overlap (e.g.
# file in .data maps to same location as file in wheel root).
# Sorting installation paths makes it easier to reproduce and debug
# issues related to permissions on existing files.
for installed_path in sorted(set(installed.values())):
full_installed_path = os.path.join(lib_dir, installed_path)
if not os.path.isfile(full_installed_path):
continue
if not full_installed_path.endswith('.py'):
continue
yield full_installed_path
def pyc_output_path(path):
# type: (text_type) -> text_type
"""Return the path the pyc file would have been written to.
"""
if PY2:
if sys.flags.optimize:
return path + 'o'
else:
return path + 'c'
else:
return importlib.util.cache_from_source(path)
# Compile all of the pyc files for the installed files
if pycompile:
with captured_stdout() as stdout:
with warnings.catch_warnings():
warnings.filterwarnings('ignore')
for path in pyc_source_file_paths():
# Python 2's `compileall.compile_file` requires a str in
# error cases, so we must convert to the native type.
path_arg = ensure_str(path,
encoding=sys.getfilesystemencoding())
success = compileall.compile_file(path_arg,
force=True,
quiet=True)
if success:
pyc_path = pyc_output_path(path)
assert os.path.exists(pyc_path)
record_installed(pyc_path, pyc_path)
logger.debug(stdout.getvalue())
maker = PipScriptMaker(None, scheme.scripts)
# Ensure old scripts are overwritten.
# See https://github.com/pypa/pip/issues/1800
maker.clobber = True
# Ensure we don't generate any variants for scripts because this is almost
# never what somebody wants.
# See https://bitbucket.org/pypa/distlib/issue/35/
maker.variants = {''}
# This is required because otherwise distlib creates scripts that are not
# executable.
# See https://bitbucket.org/pypa/distlib/issue/32/
maker.set_mode = True
# Generate the console and GUI entry points specified in the wheel
scripts_to_generate = get_console_script_specs(console)
gui_scripts_to_generate = list(starmap('{} = {}'.format, gui.items()))
generated_console_scripts = [] # type: List[str]
try:
generated_console_scripts = maker.make_multiple(scripts_to_generate)
generated.extend(generated_console_scripts)
generated.extend(
maker.make_multiple(gui_scripts_to_generate, {'gui': True}))
except MissingCallableSuffix as e:
entry = e.args[0]
raise InstallationError(
"Invalid script entry point: {} for req: {} - A callable "
"suffix is required. Cf https://packaging.python.org/"
"specifications/entry-points/#use-for-scripts for more "
"information.".format(entry, req_description))
if warn_script_location:
msg = message_about_scripts_not_on_PATH(generated_console_scripts)
if msg is not None:
logger.warning(msg)
generated_file_mode = 0o666 & ~current_umask()
@contextlib.contextmanager
def _generate_file(path, **kwargs):
# type: (str, **Any) -> Iterator[NamedTemporaryFileResult]
with adjacent_tmp_file(path, **kwargs) as f:
yield f
os.chmod(f.name, generated_file_mode)
replace(f.name, path)
dest_info_dir = os.path.join(lib_dir, info_dir)
# Record pip as the installer
installer_path = os.path.join(dest_info_dir, 'INSTALLER')
with _generate_file(installer_path) as installer_file:
installer_file.write(b'pip\n')
generated.append(installer_path)
# Record the PEP 610 direct URL reference
if direct_url is not None:
direct_url_path = os.path.join(dest_info_dir, DIRECT_URL_METADATA_NAME)
with _generate_file(direct_url_path) as direct_url_file:
direct_url_file.write(direct_url.to_json().encode("utf-8"))
generated.append(direct_url_path)
# Record the REQUESTED file
if requested:
requested_path = os.path.join(dest_info_dir, 'REQUESTED')
with open(requested_path, "w"):
pass
generated.append(requested_path)
record_text = distribution.get_metadata('RECORD')
record_rows = list(csv.reader(record_text.splitlines()))
rows = get_csv_rows_for_installed(record_rows,
installed=installed,
changed=changed,
generated=generated,
lib_dir=lib_dir)
# Record details of all files installed
record_path = os.path.join(dest_info_dir, 'RECORD')
with _generate_file(record_path, **csv_io_kwargs('w')) as record_file:
# The type mypy infers for record_file is different for Python 3
# (typing.IO[Any]) and Python 2 (typing.BinaryIO). We explicitly
# cast to typing.IO[str] as a workaround.
writer = csv.writer(cast('IO[str]', record_file))
writer.writerows(_normalized_outrows(rows))