import compileall
import contextlib
import filecmp
import importlib.util
import io
import os
import py_compile
import shutil
import struct
import sys
import tempfile
import test.test_importlib.util
import time
import unittest
from unittest import mock, skipUnless
try:
# compileall relies on ProcessPoolExecutor if ProcessPoolExecutor exists
# and it can function.
from multiprocessing.util import _cleanup_tests as multiprocessing_cleanup_tests
from concurrent.futures import ProcessPoolExecutor # noqa: F401
from concurrent.futures.process import _check_system_limits
_check_system_limits()
_have_multiprocessing = True
except (NotImplementedError, ModuleNotFoundError):
_have_multiprocessing = False
from test import support
from test.support import os_helper
from test.support import script_helper
from test.test_py_compile import without_source_date_epoch
from test.test_py_compile import SourceDateEpochTestMeta
from test.support.os_helper import FakePath
def get_pyc(script, opt):
if not opt:
# Replace None and 0 with ''
opt = ''
return importlib.util.cache_from_source(script, optimization=opt)
def get_pycs(script):
return [get_pyc(script, opt) for opt in (0, 1, 2)]
def is_hardlink(filename1, filename2):
"""Returns True if two files have the same inode (hardlink)"""
inode1 = os.stat(filename1).st_ino
inode2 = os.stat(filename2).st_ino
return inode1 == inode2
class CompileallTestsBase:
def setUp(self):
self.directory = tempfile.mkdtemp()
self.addCleanup(shutil.rmtree, self.directory)
self.source_path = os.path.join(self.directory, '_test.py')
self.bc_path = importlib.util.cache_from_source(self.source_path)
with open(self.source_path, 'w', encoding="utf-8") as file:
file.write('x = 123\n')
self.source_path2 = os.path.join(self.directory, '_test2.py')
self.bc_path2 = importlib.util.cache_from_source(self.source_path2)
shutil.copyfile(self.source_path, self.source_path2)
self.subdirectory = os.path.join(self.directory, '_subdir')
os.mkdir(self.subdirectory)
self.source_path3 = os.path.join(self.subdirectory, '_test3.py')
shutil.copyfile(self.source_path, self.source_path3)
def add_bad_source_file(self):
self.bad_source_path = os.path.join(self.directory, '_test_bad.py')
with open(self.bad_source_path, 'w', encoding="utf-8") as file:
file.write('x (\n')
def timestamp_metadata(self):
with open(self.bc_path, 'rb') as file:
data = file.read(12)
mtime = int(os.stat(self.source_path).st_mtime)
compare = struct.pack('<4sLL', importlib.util.MAGIC_NUMBER, 0,
mtime & 0xFFFF_FFFF)
return data, compare
def test_year_2038_mtime_compilation(self):
# Test to make sure we can handle mtimes larger than what a 32-bit
# signed number can hold as part of bpo-34990
try:
os.utime(self.source_path, (2**32 - 1, 2**32 - 1))
except (OverflowError, OSError):
self.skipTest("filesystem doesn't support timestamps near 2**32")
with contextlib.redirect_stdout(io.StringIO()):
self.assertTrue(compileall.compile_file(self.source_path))
def test_larger_than_32_bit_times(self):
# This is similar to the test above but we skip it if the OS doesn't
# support modification times larger than 32-bits.
try:
os.utime(self.source_path, (2**35, 2**35))
except (OverflowError, OSError):
self.skipTest("filesystem doesn't support large timestamps")
with contextlib.redirect_stdout(io.StringIO()):
self.assertTrue(compileall.compile_file(self.source_path))
def recreation_check(self, metadata):
"""Check that compileall recreates bytecode when the new metadata is
used."""
if os.environ.get('SOURCE_DATE_EPOCH'):
raise unittest.SkipTest('SOURCE_DATE_EPOCH is set')
py_compile.compile(self.source_path)
self.assertEqual(*self.timestamp_metadata())
with open(self.bc_path, 'rb') as file:
bc = file.read()[len(metadata):]
with open(self.bc_path, 'wb') as file:
file.write(metadata)
file.write(bc)
self.assertNotEqual(*self.timestamp_metadata())
compileall.compile_dir(self.directory, force=False, quiet=True)
self.assertTrue(*self.timestamp_metadata())
def test_mtime(self):
# Test a change in mtime leads to a new .pyc.
self.recreation_check(struct.pack('<4sLL', importlib.util.MAGIC_NUMBER,
0, 1))
def test_magic_number(self):
# Test a change in mtime leads to a new .pyc.
self.recreation_check(b'\0\0\0\0')
def test_compile_files(self):
# Test compiling a single file, and complete directory
for fn in (self.bc_path, self.bc_path2):
try:
os.unlink(fn)
except:
pass
self.assertTrue(compileall.compile_file(self.source_path,
force=False, quiet=True))
self.assertTrue(os.path.isfile(self.bc_path) and
not os.path.isfile(self.bc_path2))
os.unlink(self.bc_path)
self.assertTrue(compileall.compile_dir(self.directory, force=False,
quiet=True))
self.assertTrue(os.path.isfile(self.bc_path) and
os.path.isfile(self.bc_path2))
os.unlink(self.bc_path)
os.unlink(self.bc_path2)
# Test against bad files
self.add_bad_source_file()
self.assertFalse(compileall.compile_file(self.bad_source_path,
force=False, quiet=2))
self.assertFalse(compileall.compile_dir(self.directory,
force=False, quiet=2))
def test_compile_file_pathlike(self):
self.assertFalse(os.path.isfile(self.bc_path))
# we should also test the output
with support.captured_stdout() as stdout:
self.assertTrue(compileall.compile_file(FakePath(self.source_path)))
self.assertRegex(stdout.getvalue(), r'Compiling ([^WindowsPath|PosixPath].*)')
self.assertTrue(os.path.isfile(self.bc_path))
def test_compile_file_pathlike_ddir(self):
self.assertFalse(os.path.isfile(self.bc_path))
self.assertTrue(compileall.compile_file(FakePath(self.source_path),
ddir=FakePath('ddir_path'),
quiet=2))
self.assertTrue(os.path.isfile(self.bc_path))
def test_compile_file_pathlike_stripdir(self):
self.assertFalse(os.path.isfile(self.bc_path))
self.assertTrue(compileall.compile_file(FakePath(self.source_path),
stripdir=FakePath('stripdir_path'),
quiet=2))
self.assertTrue(os.path.isfile(self.bc_path))
def test_compile_file_pathlike_prependdir(self):
self.assertFalse(os.path.isfile(self.bc_path))
self.assertTrue(compileall.compile_file(FakePath(self.source_path),
prependdir=FakePath('prependdir_path'),
quiet=2))
self.assertTrue(os.path.isfile(self.bc_path))
def test_compile_path(self):
with test.test_importlib.util.import_state(path=[self.directory]):
self.assertTrue(compileall.compile_path(quiet=2))
with test.test_importlib.util.import_state(path=[self.directory]):
self.add_bad_source_file()
self.assertFalse(compileall.compile_path(skip_curdir=False,
force=True, quiet=2))
def test_no_pycache_in_non_package(self):
# Bug 8563 reported that __pycache__ directories got created by
# compile_file() for non-.py files.
data_dir = os.path.join(self.directory, 'data')
data_file = os.path.join(data_dir, 'file')
os.mkdir(data_dir)
# touch data/file
with open(data_file, 'wb'):
pass
compileall.compile_file(data_file)
self.assertFalse(os.path.exists(os.path.join(data_dir, '__pycache__')))
def test_compile_file_encoding_fallback(self):
# Bug 44666 reported that compile_file failed when sys.stdout.encoding is None
self.add_bad_source_file()
with contextlib.redirect_stdout(io.StringIO()):
self.assertFalse(compileall.compile_file(self.bad_source_path))
def test_optimize(self):
# make sure compiling with different optimization settings than the
# interpreter's creates the correct file names
optimize, opt = (1, 1) if __debug__ else (0, '')
compileall.compile_dir(self.directory, quiet=True, optimize=optimize)
cached = importlib.util.cache_from_source(self.source_path,
optimization=opt)
self.assertTrue(os.path.isfile(cached))
cached2 = importlib.util.cache_from_source(self.source_path2,
optimization=opt)
self.assertTrue(os.path.isfile(cached2))
cached3 = importlib.util.cache_from_source(self.source_path3,
optimization=opt)
self.assertTrue(os.path.isfile(cached3))
def test_compile_dir_pathlike(self):
self.assertFalse(os.path.isfile(self.bc_path))
with support.captured_stdout() as stdout:
compileall.compile_dir(FakePath(self.directory))
line = stdout.getvalue().splitlines()[0]
self.assertRegex(line, r'Listing ([^WindowsPath|PosixPath].*)')
self.assertTrue(os.path.isfile(self.bc_path))
def test_compile_dir_pathlike_stripdir(self):
self.assertFalse(os.path.isfile(self.bc_path))
self.assertTrue(compileall.compile_dir(FakePath(self.directory),
stripdir=FakePath('stripdir_path'),
quiet=2))
self.assertTrue(os.path.isfile(self.bc_path))
def test_compile_dir_pathlike_prependdir(self):
self.assertFalse(os.path.isfile(self.bc_path))
self.assertTrue(compileall.compile_dir(FakePath(self.directory),
prependdir=FakePath('prependdir_path'),
quiet=2))
self.assertTrue(os.path.isfile(self.bc_path))
@skipUnless(_have_multiprocessing, "requires multiprocessing")
@mock.patch('concurrent.futures.ProcessPoolExecutor')
def test_compile_pool_called(self, pool_mock):
compileall.compile_dir(self.directory, quiet=True, workers=5)
self.assertTrue(pool_mock.called)
def test_compile_workers_non_positive(self):
with self.assertRaisesRegex(ValueError,
"workers must be greater or equal to 0"):
compileall.compile_dir(self.directory, workers=-1)
@skipUnless(_have_multiprocessing, "requires multiprocessing")
@mock.patch('concurrent.futures.ProcessPoolExecutor')
def test_compile_workers_cpu_count(self, pool_mock):
compileall.compile_dir(self.directory, quiet=True, workers=0)
self.assertEqual(pool_mock.call_args[1]['max_workers'], None)
@skipUnless(_have_multiprocessing, "requires multiprocessing")
@mock.patch('concurrent.futures.ProcessPoolExecutor')
@mock.patch('compileall.compile_file')
def test_compile_one_worker(self, compile_file_mock, pool_mock):
compileall.compile_dir(self.directory, quiet=True)
self.assertFalse(pool_mock.called)
self.assertTrue(compile_file_mock.called)
@skipUnless(_have_multiprocessing, "requires multiprocessing")
@mock.patch('concurrent.futures.ProcessPoolExecutor', new=None)
@mock.patch('compileall.compile_file')
def test_compile_missing_multiprocessing(self, compile_file_mock):
compileall.compile_dir(self.directory, quiet=True, workers=5)
self.assertTrue(compile_file_mock.called)
def test_compile_dir_maxlevels(self):
# Test the actual impact of maxlevels parameter
depth = 3
path = self.directory
for i in range(1, depth + 1):
path = os.path.join(path, f"dir_{i}")
source = os.path.join(path, 'script.py')
os.mkdir(path)
shutil.copyfile(self.source_path, source)
pyc_filename = importlib.util.cache_from_source(source)
compileall.compile_dir(self.directory, quiet=True, maxlevels=depth - 1)
self.assertFalse(os.path.isfile(pyc_filename))
compileall.compile_dir(self.directory, quiet=True, maxlevels=depth)
self.assertTrue(os.path.isfile(pyc_filename))
def _test_ddir_only(self, *, ddir, parallel=True):
"""Recursive compile_dir ddir must contain package paths; bpo39769."""
fullpath = ["test", "foo"]
path = self.directory
mods = []
for subdir in fullpath:
path = os.path.join(path, subdir)
os.mkdir(path)
script_helper.make_script(path, "__init__", "")
mods.append(script_helper.make_script(path, "mod",
"def fn(): 1/0\nfn()\n"))
if parallel:
self.addCleanup(multiprocessing_cleanup_tests)
compileall.compile_dir(
self.directory, quiet=True, ddir=ddir,
workers=2 if parallel else 1)
self.assertTrue(mods)
for mod in mods:
self.assertTrue(mod.startswith(self.directory), mod)
modcode = importlib.util.cache_from_source(mod)
modpath = mod[len(self.directory+os.sep):]
_, _, err = script_helper.assert_python_failure(modcode)
expected_in = os.path.join(ddir, modpath)
mod_code_obj = test.test_importlib.util.get_code_from_pyc(modcode)
self.assertEqual(mod_code_obj.co_filename, expected_in)
self.assertIn(f'"{expected_in}"', os.fsdecode(err))
def test_ddir_only_one_worker(self):
"""Recursive compile_dir ddir= contains package paths; bpo39769."""
return self._test_ddir_only(ddir="<a prefix>", parallel=False)
@skipUnless(_have_multiprocessing, "requires multiprocessing")
def test_ddir_multiple_workers(self):
"""Recursive compile_dir ddir= contains package paths; bpo39769."""
return self._test_ddir_only(ddir="<a prefix>", parallel=True)
def test_ddir_empty_only_one_worker(self):
"""Recursive compile_dir ddir='' contains package paths; bpo39769."""
return self._test_ddir_only(ddir="", parallel=False)
@skipUnless(_have_multiprocessing, "requires multiprocessing")
def test_ddir_empty_multiple_workers(self):
"""Recursive compile_dir ddir='' contains package paths; bpo39769."""
return self._test_ddir_only(ddir="", parallel=True)
def test_strip_only(self):
fullpath = ["test", "build", "real", "path"]
path = os.path.join(self.directory, *fullpath)
os.makedirs(path)
script = script_helper.make_script(path, "test", "1 / 0")
bc = importlib.util.cache_from_source(script)
stripdir = os.path.join(self.directory, *fullpath[:2])
compileall.compile_dir(path, quiet=True, stripdir=stripdir)
rc, out, err = script_helper.assert_python_failure(bc)
expected_in = os.path.join(*fullpath[2:])
self.assertIn(
expected_in,
str(err, encoding=sys.getdefaultencoding())
)
self.assertNotIn(
stripdir,
str(err, encoding=sys.getdefaultencoding())
)
def test_strip_only_invalid(self):
fullpath = ["test", "build", "real", "path"]
path = os.path.join(self.directory, *fullpath)
os.makedirs(path)
script = script_helper.make_script(path, "test", "1 / 0")
bc = importlib.util.cache_from_source(script)
stripdir = os.path.join(self.directory, *(fullpath[:2] + ['fake']))
with support.captured_stdout() as out:
compileall.compile_dir(path, quiet=True, stripdir=stripdir)
self.assertIn("not a valid prefix", out.getvalue())
rc, out, err = script_helper.assert_python_failure(bc)
expected_not_in = os.path.join(self.directory, *fullpath[2:])
self.assertIn(
path,
str(err, encoding=sys.getdefaultencoding())
)
self.assertNotIn(
expected_not_in,
str(err, encoding=sys.getdefaultencoding())
)
self.assertNotIn(
stripdir,
str(err, encoding=sys.getdefaultencoding())
)
def test_prepend_only(self):
fullpath = ["test", "build", "real", "path"]
path = os.path.join(self.directory, *fullpath)
os.makedirs(path)
script = script_helper.make_script(path, "test", "1 / 0")
bc = importlib.util.cache_from_source(script)
prependdir = "/foo"
compileall.compile_dir(path, quiet=True, prependdir=prependdir)
rc, out, err = script_helper.assert_python_failure(bc)
expected_in = os.path.join(prependdir, self.directory, *fullpath)
self.assertIn(
expected_in,
str(err, encoding=sys.getdefaultencoding())
)
def test_strip_and_prepend(self):
fullpath = ["test", "build", "real", "path"]
path = os.path.join(self.directory, *fullpath)
os.makedirs(path)
script = script_helper.make_script(path, "test", "1 / 0")
bc = importlib.util.cache_from_source(script)
stripdir = os.path.join(self.directory, *fullpath[:2])
prependdir = "/foo"
compileall.compile_dir(path, quiet=True,
stripdir=stripdir, prependdir=prependdir)
rc, out, err = script_helper.assert_python_failure(bc)
expected_in = os.path.join(prependdir, *fullpath[2:])
self.assertIn(
expected_in,
str(err, encoding=sys.getdefaultencoding())
)
self.assertNotIn(
stripdir,
str(err, encoding=sys.getdefaultencoding())
)
def test_strip_prepend_and_ddir(self):
fullpath = ["test", "build", "real", "path", "ddir"]
path = os.path.join(self.directory, *fullpath)
os.makedirs(path)
script_helper.make_script(path, "test", "1 / 0")
with self.assertRaises(ValueError):
compileall.compile_dir(path, quiet=True, ddir="/bar",
stripdir="/foo", prependdir="/bar")
def test_multiple_optimization_levels(self):
script = script_helper.make_script(self.directory,
"test_optimization",
"a = 0")
bc = []
for opt_level in "", 1, 2, 3:
bc.append(importlib.util.cache_from_source(script,
optimization=opt_level))
test_combinations = [[0, 1], [1, 2], [0, 2], [0, 1, 2]]
for opt_combination in test_combinations:
compileall.compile_file(script, quiet=True,
optimize=opt_combination)
for opt_level in opt_combination:
self.assertTrue(os.path.isfile(bc[opt_level]))
try:
os.unlink(bc[opt_level])
except Exception:
pass
@os_helper.skip_unless_symlink
def test_ignore_symlink_destination(self):
# Create folders for allowed files, symlinks and prohibited area
allowed_path = os.path.join(self.directory, "test", "dir", "allowed")
symlinks_path = os.path.join(self.directory, "test", "dir", "symlinks")
prohibited_path = os.path.join(self.directory, "test", "dir", "prohibited")
os.makedirs(allowed_path)
os.makedirs(symlinks_path)
os.makedirs(prohibited_path)
# Create scripts and symlinks and remember their byte-compiled versions
allowed_script = script_helper.make_script(allowed_path, "test_allowed", "a = 0")
prohibited_script = script_helper.make_script(prohibited_path, "test_prohibited", "a = 0")
allowed_symlink = os.path.join(symlinks_path, "test_allowed.py")
prohibited_symlink = os.path.join(symlinks_path, "test_prohibited.py")
os.symlink(allowed_script, allowed_symlink)
os.symlink(prohibited_script, prohibited_symlink)
allowed_bc = importlib.util.cache_from_source(allowed_symlink)
prohibited_bc = importlib.util.cache_from_source(prohibited_symlink)
compileall.compile_dir(symlinks_path, quiet=True, limit_sl_dest=allowed_path)
self.assertTrue(os.path.isfile(allowed_bc))
self.assertFalse(os.path.isfile(prohibited_bc))
class CompileallTestsWithSourceEpoch(CompileallTestsBase,
unittest.TestCase,
metaclass=SourceDateEpochTestMeta,
source_date_epoch=True):
pass
class CompileallTestsWithoutSourceEpoch(CompileallTestsBase,
unittest.TestCase,
metaclass=SourceDateEpochTestMeta,
source_date_epoch=False):
pass
# WASI does not have a temp directory and uses cwd instead. The cwd contains
# non-ASCII chars, so _walk_dir() fails to encode self.directory.
@unittest.skipIf(support.is_wasi, "tempdir is not encodable on WASI")
class EncodingTest(unittest.TestCase):
"""Issue 6716: compileall should escape source code when printing errors
to stdout."""
def setUp(self):
self.directory = tempfile.mkdtemp()
self.source_path = os.path.join(self.directory, '_test.py')
with open(self.source_path, 'w', encoding='utf-8') as file:
# Intentional syntax error: bytes can only contain
# ASCII literal characters.
file.write('b"\u20ac"')
def tearDown(self):
shutil.rmtree(self.directory)
def test_error(self):
buffer = io.TextIOWrapper(io.BytesIO(), encoding='ascii')
with contextlib.redirect_stdout(buffer):
compiled = compileall.compile_dir(self.directory)
self.assertFalse(compiled) # should not be successful
buffer.seek(0)
res = buffer.read()
self.assertIn(
'SyntaxError: bytes can only contain ASCII literal characters',
res,
)
self.assertNotIn('UnicodeEncodeError', res)
class CommandLineTestsBase:
"""Test compileall's CLI."""
def setUp(self):
self.directory = tempfile.mkdtemp()
self.addCleanup(os_helper.rmtree, self.directory)
self.pkgdir = os.path.join(self.directory, 'foo')
os.mkdir(self.pkgdir)
self.pkgdir_cachedir = os.path.join(self.pkgdir, '__pycache__')
# Create the __init__.py and a package module.
self.initfn = script_helper.make_script(self.pkgdir, '__init__', '')
self.barfn = script_helper.make_script(self.pkgdir, 'bar', '')
@contextlib.contextmanager
def temporary_pycache_prefix(self):
"""Adjust and restore sys.pycache_prefix."""
old_prefix = sys.pycache_prefix
new_prefix = os.path.join(self.directory, '__testcache__')
try:
sys.pycache_prefix = new_prefix
yield {
'PYTHONPATH': self.directory,
'PYTHONPYCACHEPREFIX': new_prefix,
}
finally:
sys.pycache_prefix = old_prefix
def _get_run_args(self, args):
return [*support.optim_args_from_interpreter_flags(),
'-S', '-m', 'compileall',
*args]
def assertRunOK(self, *args, **env_vars):
rc, out, err = script_helper.assert_python_ok(
*self._get_run_args(args), **env_vars,
PYTHONIOENCODING='utf-8')
self.assertEqual(b'', err)
return out
def assertRunNotOK(self, *args, **env_vars):
rc, out, err = script_helper.assert_python_failure(
*self._get_run_args(args), **env_vars,
PYTHONIOENCODING='utf-8')
return rc, out, err
def assertCompiled(self, fn):
path = importlib.util.cache_from_source(fn)
self.assertTrue(os.path.exists(path))
def assertNotCompiled(self, fn):
path = importlib.util.cache_from_source(fn)
self.assertFalse(os.path.exists(path))
def test_no_args_compiles_path(self):
# Note that -l is implied for the no args case.
bazfn = script_helper.make_script(self.directory, 'baz', '')
with self.temporary_pycache_prefix() as env:
self.assertRunOK(**env)
self.assertCompiled(bazfn)
self.assertNotCompiled(self.initfn)
self.assertNotCompiled(self.barfn)
@without_source_date_epoch # timestamp invalidation test
@support.requires_resource('cpu')
def test_no_args_respects_force_flag(self):
bazfn = script_helper.make_script(self.directory, 'baz', '')
with self.temporary_pycache_prefix() as env:
self.assertRunOK(**env)
pycpath = importlib.util.cache_from_source(bazfn)
# Set atime/mtime backward to avoid file timestamp resolution issues
os.utime(pycpath, (time.time()-60,)*2)
mtime = os.stat(pycpath).st_mtime
# Without force, no recompilation
self.assertRunOK(**env)
mtime2 = os.stat(pycpath).st_mtime
self.assertEqual(mtime, mtime2)
# Now force it.
self.assertRunOK('-f', **env)
mtime2 = os.stat(pycpath).st_mtime
self.assertNotEqual(mtime, mtime2)
@support.requires_resource('cpu')
def test_no_args_respects_quiet_flag(self):
script_helper.make_script(self.directory, 'baz', '')
with self.temporary_pycache_prefix() as env:
noisy = self.assertRunOK(**env)
self.assertIn(b'Listing ', noisy)
quiet = self.assertRunOK('-q', **env)
self.assertNotIn(b'Listing ', quiet)
# Ensure that the default behavior of compileall's CLI is to create
# PEP 3147/PEP 488 pyc files.
for name, ext, switch in [
('normal', 'pyc', []),
('optimize', 'opt-1.pyc', ['-O']),
('doubleoptimize', 'opt-2.pyc', ['-OO']),
]:
def f(self, ext=ext, switch=switch):
script_helper.assert_python_ok(*(switch +
['-m', 'compileall', '-q', self.pkgdir]))
# Verify the __pycache__ directory contents.
self.assertTrue(os.path.exists(self.pkgdir_cachedir))
expected = sorted(base.format(sys.implementation.cache_tag, ext)
for base in ('__init__.{}.{}', 'bar.{}.{}'))
self.assertEqual(sorted(os.listdir(self.pkgdir_cachedir)), expected)
# Make sure there are no .pyc files in the source directory.
self.assertFalse([fn for fn in os.listdir(self.pkgdir)
if fn.endswith(ext)])
locals()['test_pep3147_paths_' + name] = f
def test_legacy_paths(self):
# Ensure that with the proper switch, compileall leaves legacy
# pyc files, and no __pycache__ directory.
self.assertRunOK('-b', '-q', self.pkgdir)
# Verify the __pycache__ directory contents.
self.assertFalse(os.path.exists(self.pkgdir_cachedir))
expected = sorted(['__init__.py', '__init__.pyc', 'bar.py',
'bar.pyc'])
self.assertEqual(sorted(os.listdir(self.pkgdir)), expected)
def test_multiple_runs(self):
# Bug 8527 reported that multiple calls produced empty
# __pycache__/__pycache__ directories.
self.assertRunOK('-q', self.pkgdir)
# Verify the __pycache__ directory contents.
self.assertTrue(os.path.exists(self.pkgdir_cachedir))
cachecachedir = os.path.join(self.pkgdir_cachedir, '__pycache__')
self.assertFalse(os.path.exists(cachecachedir))
# Call compileall again.
self.assertRunOK('-q', self.pkgdir)
self.assertTrue(os.path.exists(self.pkgdir_cachedir))
self.assertFalse(os.path.exists(cachecachedir))
@without_source_date_epoch # timestamp invalidation test
def test_force(self):
self.assertRunOK('-q', self.pkgdir)
pycpath = importlib.util.cache_from_source(self.barfn)
# set atime/mtime backward to avoid file timestamp resolution issues
os.utime(pycpath, (time.time()-60,)*2)
mtime = os.stat(pycpath).st_mtime
# without force, no recompilation
self.assertRunOK('-q', self.pkgdir)
mtime2 = os.stat(pycpath).st_mtime
self.assertEqual(mtime, mtime2)
# now force it.
self.assertRunOK('-q', '-f', self.pkgdir)
mtime2 = os.stat(pycpath).st_mtime
self.assertNotEqual(mtime, mtime2)
def test_recursion_control(self):
subpackage = os.path.join(self.pkgdir, 'spam')
os.mkdir(subpackage)
subinitfn = script_helper.make_script(subpackage, '__init__', '')
hamfn = script_helper.make_script(subpackage, 'ham', '')
self.assertRunOK('-q', '-l', self.pkgdir)
self.assertNotCompiled(subinitfn)
self.assertFalse(os.path.exists(os.path.join(subpackage, '__pycache__')))
self.assertRunOK('-q', self.pkgdir)
self.assertCompiled(subinitfn)
self.assertCompiled(hamfn)
def test_recursion_limit(self):
subpackage = os.path.join(self.pkgdir, 'spam')
subpackage2 = os.path.join(subpackage, 'ham')
subpackage3 = os.path.join(subpackage2, 'eggs')
for pkg in (subpackage, subpackage2, subpackage3):
script_helper.make_pkg(pkg)
subinitfn = os.path.join(subpackage, '__init__.py')
hamfn = script_helper.make_script(subpackage, 'ham', '')
spamfn = script_helper.make_script(subpackage2, 'spam', '')
eggfn = script_helper.make_script(subpackage3, 'egg', '')
self.assertRunOK('-q', '-r 0', self.pkgdir)
self.assertNotCompiled(subinitfn)
self.assertFalse(
os.path.exists(os.path.join(subpackage, '__pycache__')))
self.assertRunOK('-q', '-r 1', self.pkgdir)
self.assertCompiled(subinitfn)
self.assertCompiled(hamfn)
self.assertNotCompiled(spamfn)
self.assertRunOK('-q', '-r 2', self.pkgdir)
self.assertCompiled(subinitfn)
self.assertCompiled(hamfn)
self.assertCompiled(spamfn)
self.assertNotCompiled(eggfn)
self.assertRunOK('-q', '-r 5', self.pkgdir)
self.assertCompiled(subinitfn)
self.assertCompiled(hamfn)
self.assertCompiled(spamfn)
self.assertCompiled(eggfn)
@os_helper.skip_unless_symlink
def test_symlink_loop(self):
# Currently, compileall ignores symlinks to directories.
# If that limitation is ever lifted, it should protect against
# recursion in symlink loops.
pkg = os.path.join(self.pkgdir, 'spam')
script_helper.make_pkg(pkg)
os.symlink('.', os.path.join(pkg, 'evil'))
os.symlink('.', os.path.join(pkg, 'evil2'))
self.assertRunOK('-q', self.pkgdir)
self.assertCompiled(os.path.join(
self.pkgdir, 'spam', 'evil', 'evil2', '__init__.py'
))
def test_quiet(self):
noisy = self.assertRunOK(self.pkgdir)
quiet = self.assertRunOK('-q', self.pkgdir)
self.assertNotEqual(b'', noisy)
self.assertEqual(b'', quiet)
def test_silent(self):
script_helper.make_script(self.pkgdir, 'crunchyfrog', 'bad(syntax')
_, quiet, _ = self.assertRunNotOK('-q', self.pkgdir)
_, silent, _ = self.assertRunNotOK('-qq', self.pkgdir)
self.assertNotEqual(b'', quiet)
self.assertEqual(b'', silent)
def test_regexp(self):
self.assertRunOK('-q', '-x', r'ba[^\\/]*$', self.pkgdir)
self.assertNotCompiled(self.barfn)
self.assertCompiled(self.initfn)
def test_multiple_dirs(self):
pkgdir2 = os.path.join(self.directory, 'foo2')
os.mkdir(pkgdir2)
init2fn = script_helper.make_script(pkgdir2, '__init__', '')
bar2fn = script_helper.make_script(pkgdir2, 'bar2', '')
self.assertRunOK('-q', self.pkgdir, pkgdir2)
self.assertCompiled(self.initfn)
self.assertCompiled(self.barfn)
self.assertCompiled(init2fn)
self.assertCompiled(bar2fn)
def test_d_compile_error(self):
script_helper.make_script(self.pkgdir, 'crunchyfrog', 'bad(syntax')
rc, out, err = self.assertRunNotOK('-q', '-d', 'dinsdale', self.pkgdir)
self.assertRegex(out, b'File "dinsdale')
def test_d_runtime_error(self):
bazfn = script_helper.make_script(self.pkgdir, 'baz', 'raise Exception')
self.assertRunOK('-q', '-d', 'dinsdale', self.pkgdir)
fn = script_helper.make_script(self.pkgdir, 'bing', 'import baz')
pyc = importlib.util.cache_from_source(bazfn)
os.rename(pyc, os.path.join(self.pkgdir, 'baz.pyc'))
os.remove(bazfn)
rc, out, err = script_helper.assert_python_failure(fn, __isolated=False)
self.assertRegex(err, b'File "dinsdale')
def test_include_bad_file(self):
rc, out, err = self.assertRunNotOK(
'-i', os.path.join(self.directory, 'nosuchfile'), self.pkgdir)
self.assertRegex(out, b'rror.*nosuchfile')
self.assertNotRegex(err, b'Traceback')
self.assertFalse(os.path.exists(importlib.util.cache_from_source(
self.pkgdir_cachedir)))
def test_include_file_with_arg(self):
f1 = script_helper.make_script(self.pkgdir, 'f1', '')
f2 = script_helper.make_script(self.pkgdir, 'f2', '')
f3 = script_helper.make_script(self.pkgdir, 'f3', '')
f4 = script_helper.make_script(self.pkgdir, 'f4', '')
with open(os.path.join(self.directory, 'l1'), 'w', encoding="utf-8") as l1:
l1.write(os.path.join(self.pkgdir, 'f1.py')+os.linesep)
l1.write(os.path.join(self.pkgdir, 'f2.py')+os.linesep)
self.assertRunOK('-i', os.path.join(self.directory, 'l1'), f4)
self.assertCompiled(f1)
self.assertCompiled(f2)
self.assertNotCompiled(f3)
self.assertCompiled(f4)
def test_include_file_no_arg(self):
f1 = script_helper.make_script(self.pkgdir, 'f1', '')
f2 = script_helper.make_script(self.pkgdir, 'f2', '')
f3 = script_helper.make_script(self.pkgdir, 'f3', '')
f4 = script_helper.make_script(self.pkgdir, 'f4', '')
with open(os.path.join(self.directory, 'l1'), 'w', encoding="utf-8") as l1:
l1.write(os.path.join(self.pkgdir, 'f2.py')+os.linesep)
self.assertRunOK('-i', os.path.join(self.directory, 'l1'))
self.assertNotCompiled(f1)
self.assertCompiled(f2)
self.assertNotCompiled(f3)
self.assertNotCompiled(f4)
def test_include_on_stdin(self):
f1 = script_helper.make_script(self.pkgdir, 'f1', '')
f2 = script_helper.make_script(self.pkgdir, 'f2', '')
f3 = script_helper.make_script(self.pkgdir, 'f3', '')
f4 = script_helper.make_script(self.pkgdir, 'f4', '')
p = script_helper.spawn_python(*(self._get_run_args(()) + ['-i', '-']))
p.stdin.write((f3+os.linesep).encode('ascii'))
script_helper.kill_python(p)
self.assertNotCompiled(f1)
self.assertNotCompiled(f2)
self.assertCompiled(f3)
self.assertNotCompiled(f4)
def test_compiles_as_much_as_possible(self):
bingfn = script_helper.make_script(self.pkgdir, 'bing', 'syntax(error')
rc, out, err = self.assertRunNotOK('nosuchfile', self.initfn,
bingfn, self.barfn)
self.assertRegex(out, b'rror')
self.assertNotCompiled(bingfn)
self.assertCompiled(self.initfn)
self.assertCompiled(self.barfn)
def test_invalid_arg_produces_message(self):
out = self.assertRunOK('badfilename')
self.assertRegex(out, b"Can't list 'badfilename'")
def test_pyc_invalidation_mode(self):
script_helper.make_script(self.pkgdir, 'f1', '')
pyc = importlib.util.cache_from_source(
os.path.join(self.pkgdir, 'f1.py'))
self.assertRunOK('--invalidation-mode=checked-hash', self.pkgdir)
with open(pyc, 'rb') as fp:
data = fp.read()
self.assertEqual(int.from_bytes(data[4:8], 'little'), 0b11)
self.assertRunOK('--invalidation-mode=unchecked-hash', self.pkgdir)
with open(pyc, 'rb') as fp:
data = fp.read()
self.assertEqual(int.from_bytes(data[4:8], 'little'), 0b01)
@skipUnless(_have_multiprocessing, "requires multiprocessing")
def test_workers(self):
bar2fn = script_helper.make_script(self.directory, 'bar2', '')
files = []
for suffix in range(5):
pkgdir = os.path.join(self.directory, 'foo{}'.format(suffix))
os.mkdir(pkgdir)
fn = script_helper.make_script(pkgdir, '__init__', '')
files.append(script_helper.make_script(pkgdir, 'bar2', ''))
self.assertRunOK(self.directory, '-j', '0')
self.assertCompiled(bar2fn)
for file in files:
self.assertCompiled(file)
@mock.patch('compileall.compile_dir')
def test_workers_available_cores(self, compile_dir):
with mock.patch("sys.argv",
new=[sys.executable, self.directory, "-j0"]):
compileall.main()
self.assertTrue(compile_dir.called)
self.assertEqual(compile_dir.call_args[-1]['workers'], 0)
def test_strip_and_prepend(self):
fullpath = ["test", "build", "real", "path"]
path = os.path.join(self.directory, *fullpath)
os.makedirs(path)
script = script_helper.make_script(path, "test", "1 / 0")
bc = importlib.util.cache_from_source(script)
stripdir = os.path.join(self.directory, *fullpath[:2])
prependdir = "/foo"
self.assertRunOK("-s", stripdir, "-p", prependdir, path)
rc, out, err = script_helper.assert_python_failure(bc)
expected_in = os.path.join(prependdir, *fullpath[2:])
self.assertIn(
expected_in,
str(err, encoding=sys.getdefaultencoding())
)
self.assertNotIn(
stripdir,
str(err, encoding=sys.getdefaultencoding())
)
def test_multiple_optimization_levels(self):
path = os.path.join(self.directory, "optimizations")
os.makedirs(path)
script = script_helper.make_script(path,
"test_optimization",
"a = 0")
bc = []
for opt_level in "", 1, 2, 3:
bc.append(importlib.util.cache_from_source(script,
optimization=opt_level))
test_combinations = [["0", "1"],
["1", "2"],
["0", "2"],
["0", "1", "2"]]
for opt_combination in test_combinations:
self.assertRunOK(path, *("-o" + str(n) for n in opt_combination))
for opt_level in opt_combination:
self.assertTrue(os.path.isfile(bc[int(opt_level)]))
try:
os.unlink(bc[opt_level])
except Exception:
pass
@os_helper.skip_unless_symlink
def test_ignore_symlink_destination(self):
# Create folders for allowed files, symlinks and prohibited area
allowed_path = os.path.join(self.directory, "test", "dir", "allowed")
symlinks_path = os.path.join(self.directory, "test", "dir", "symlinks")
prohibited_path = os.path.join(self.directory, "test", "dir", "prohibited")
os.makedirs(allowed_path)
os.makedirs(symlinks_path)
os.makedirs(prohibited_path)
# Create scripts and symlinks and remember their byte-compiled versions
allowed_script = script_helper.make_script(allowed_path, "test_allowed", "a = 0")
prohibited_script = script_helper.make_script(prohibited_path, "test_prohibited", "a = 0")
allowed_symlink = os.path.join(symlinks_path, "test_allowed.py")
prohibited_symlink = os.path.join(symlinks_path, "test_prohibited.py")
os.symlink(allowed_script, allowed_symlink)
os.symlink(prohibited_script, prohibited_symlink)
allowed_bc = importlib.util.cache_from_source(allowed_symlink)
prohibited_bc = importlib.util.cache_from_source(prohibited_symlink)
self.assertRunOK(symlinks_path, "-e", allowed_path)
self.assertTrue(os.path.isfile(allowed_bc))
self.assertFalse(os.path.isfile(prohibited_bc))
def test_hardlink_bad_args(self):
# Bad arguments combination, hardlink deduplication make sense
# only for more than one optimization level
self.assertRunNotOK(self.directory, "-o 1", "--hardlink-dupes")
def test_hardlink(self):
# 'a = 0' code produces the same bytecode for the 3 optimization
# levels. All three .pyc files must have the same inode (hardlinks).
#
# If deduplication is disabled, all pyc files must have different
# inodes.
for dedup in (True, False):
with tempfile.TemporaryDirectory() as path:
with self.subTest(dedup=dedup):
script = script_helper.make_script(path, "script", "a = 0")
pycs = get_pycs(script)
args = ["-q", "-o 0", "-o 1", "-o 2"]
if dedup:
args.append("--hardlink-dupes")
self.assertRunOK(path, *args)
self.assertEqual(is_hardlink(pycs[0], pycs[1]), dedup)
self.assertEqual(is_hardlink(pycs[1], pycs[2]), dedup)
self.assertEqual(is_hardlink(pycs[0], pycs[2]), dedup)
class CommandLineTestsWithSourceEpoch(CommandLineTestsBase,
unittest.TestCase,
metaclass=SourceDateEpochTestMeta,
source_date_epoch=True):
pass
class CommandLineTestsNoSourceEpoch(CommandLineTestsBase,
unittest.TestCase,
metaclass=SourceDateEpochTestMeta,
source_date_epoch=False):
pass
@os_helper.skip_unless_hardlink
class HardlinkDedupTestsBase:
# Test hardlink_dupes parameter of compileall.compile_dir()
def setUp(self):
self.path = None
@contextlib.contextmanager
def temporary_directory(self):
with tempfile.TemporaryDirectory() as path:
self.path = path
yield path
self.path = None
def make_script(self, code, name="script"):
return script_helper.make_script(self.path, name, code)
def compile_dir(self, *, dedup=True, optimize=(0, 1, 2), force=False):
compileall.compile_dir(self.path, quiet=True, optimize=optimize,
hardlink_dupes=dedup, force=force)
def test_bad_args(self):
# Bad arguments combination, hardlink deduplication make sense
# only for more than one optimization level
with self.temporary_directory():
self.make_script("pass")
with self.assertRaises(ValueError):
compileall.compile_dir(self.path, quiet=True, optimize=0,
hardlink_dupes=True)
with self.assertRaises(ValueError):
# same optimization level specified twice:
# compile_dir() removes duplicates
compileall.compile_dir(self.path, quiet=True, optimize=[0, 0],
hardlink_dupes=True)
def create_code(self, docstring=False, assertion=False):
lines = []
if docstring:
lines.append("'module docstring'")
lines.append('x = 1')
if assertion:
lines.append("assert x == 1")
return '\n'.join(lines)
def iter_codes(self):
for docstring in (False, True):
for assertion in (False, True):
code = self.create_code(docstring=docstring, assertion=assertion)
yield (code, docstring, assertion)
def test_disabled(self):
# Deduplication disabled, no hardlinks
for code, docstring, assertion in self.iter_codes():
with self.subTest(docstring=docstring, assertion=assertion):
with self.temporary_directory():
script = self.make_script(code)
pycs = get_pycs(script)
self.compile_dir(dedup=False)
self.assertFalse(is_hardlink(pycs[0], pycs[1]))
self.assertFalse(is_hardlink(pycs[0], pycs[2]))
self.assertFalse(is_hardlink(pycs[1], pycs[2]))
def check_hardlinks(self, script, docstring=False, assertion=False):
pycs = get_pycs(script)
self.assertEqual(is_hardlink(pycs[0], pycs[1]),
not assertion)
self.assertEqual(is_hardlink(pycs[0], pycs[2]),
not assertion and not docstring)
self.assertEqual(is_hardlink(pycs[1], pycs[2]),
not docstring)
def test_hardlink(self):
# Test deduplication on all combinations
for code, docstring, assertion in self.iter_codes():
with self.subTest(docstring=docstring, assertion=assertion):
with self.temporary_directory():
script = self.make_script(code)
self.compile_dir()
self.check_hardlinks(script, docstring, assertion)
def test_only_two_levels(self):
# Don't build the 3 optimization levels, but only 2
for opts in ((0, 1), (1, 2), (0, 2)):
with self.subTest(opts=opts):
with self.temporary_directory():
# code with no dostring and no assertion:
# same bytecode for all optimization levels
script = self.make_script(self.create_code())
self.compile_dir(optimize=opts)
pyc1 = get_pyc(script, opts[0])
pyc2 = get_pyc(script, opts[1])
self.assertTrue(is_hardlink(pyc1, pyc2))
def test_duplicated_levels(self):
# compile_dir() must not fail if optimize contains duplicated
# optimization levels and/or if optimization levels are not sorted.
with self.temporary_directory():
# code with no dostring and no assertion:
# same bytecode for all optimization levels
script = self.make_script(self.create_code())
self.compile_dir(optimize=[1, 0, 1, 0])
pyc1 = get_pyc(script, 0)
pyc2 = get_pyc(script, 1)
self.assertTrue(is_hardlink(pyc1, pyc2))
def test_recompilation(self):
# Test compile_dir() when pyc files already exists and the script
# content changed
with self.temporary_directory():
script = self.make_script("a = 0")
self.compile_dir()
# All three levels have the same inode
self.check_hardlinks(script)
pycs = get_pycs(script)
inode = os.stat(pycs[0]).st_ino
# Change of the module content
script = self.make_script("print(0)")
# Recompilation without -o 1
self.compile_dir(optimize=[0, 2], force=True)
# opt-1.pyc should have the same inode as before and others should not
self.assertEqual(inode, os.stat(pycs[1]).st_ino)
self.assertTrue(is_hardlink(pycs[0], pycs[2]))
self.assertNotEqual(inode, os.stat(pycs[2]).st_ino)
# opt-1.pyc and opt-2.pyc have different content
self.assertFalse(filecmp.cmp(pycs[1], pycs[2], shallow=True))
def test_import(self):
# Test that import updates a single pyc file when pyc files already
# exists and the script content changed
with self.temporary_directory():
script = self.make_script(self.create_code(), name="module")
self.compile_dir()
# All three levels have the same inode
self.check_hardlinks(script)
pycs = get_pycs(script)
inode = os.stat(pycs[0]).st_ino
# Change of the module content
script = self.make_script("print(0)", name="module")
# Import the module in Python with -O (optimization level 1)
script_helper.assert_python_ok(
"-O", "-c", "import module", __isolated=False, PYTHONPATH=self.path
)
# Only opt-1.pyc is changed
self.assertEqual(inode, os.stat(pycs[0]).st_ino)
self.assertEqual(inode, os.stat(pycs[2]).st_ino)
self.assertFalse(is_hardlink(pycs[1], pycs[2]))
# opt-1.pyc and opt-2.pyc have different content
self.assertFalse(filecmp.cmp(pycs[1], pycs[2], shallow=True))
class HardlinkDedupTestsWithSourceEpoch(HardlinkDedupTestsBase,
unittest.TestCase,
metaclass=SourceDateEpochTestMeta,
source_date_epoch=True):
pass
class HardlinkDedupTestsNoSourceEpoch(HardlinkDedupTestsBase,
unittest.TestCase,
metaclass=SourceDateEpochTestMeta,
source_date_epoch=False):
pass
if __name__ == "__main__":
unittest.main()
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