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test_pythonlib.py
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executable file
·318 lines (266 loc) · 8.3 KB
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#!/usr/bin/env python
# emacs-mode: -*-python-*-
"""
test_pythonlib.py -- compile, uncompyle, and verify Python libraries
Usage-Examples:
# decompile, and verify base set of python 2.7 byte-compiled files
test_pythonlib.py --base-2.7 --verify
# Same as above but compile the base set first
test_pythonlib.py --base-2.7 --verify --compile
# Same as above but use a longer set from the python 2.7 library
test_pythonlib.py --ok-2.7 --verify --compile
# Just deompile the longer set of files
test_pythonlib.py --ok-2.7
Adding own test-trees:
Step 1) Edit this file and add a new entry to 'test_options', eg.
test_options['mylib'] = ('/usr/lib/mylib', PYOC, 'mylib')
Step 2: Run the test:
test_pythonlib.py --mylib # decompile 'mylib'
test_pythonlib.py --mylib --verify # decompile verify 'mylib'
"""
from __future__ import print_function
import getopt
import os
import py_compile
import shutil
import sys
import tempfile
import time
from fnmatch import fnmatch
from xdis.version_info import PYTHON_VERSION_TRIPLE
from uncompyle6.main import main
def get_srcdir():
filename = os.path.normcase(os.path.dirname(__file__))
return os.path.realpath(filename)
src_dir = get_srcdir()
# ----- configure this for your needs
lib_prefix = "/usr/lib"
# lib_prefix = [src_dir, '/usr/lib/', '/usr/local/lib/']
target_base = tempfile.mkdtemp(prefix="py-dis-")
PY = ("*.py",)
PYC = ("*.pyc",)
PYO = ("*.pyo",)
PYOC = ("*.pyc", "*.pyo")
test_options = {
# name: (src_basedir, pattern, output_base_suffix, python_version)
"test": ("test", PYC, "test"),
"ok-2.6": (os.path.join(src_dir, "ok_lib2.6"), PYOC, "ok-2.6", 2.6),
"ok-2.7": (os.path.join(src_dir, "ok_lib2.7"), PYOC, "ok-2.7", 2.7),
"ok-3.2": (os.path.join(src_dir, "ok_lib3.2"), PYOC, "ok-3.2", 3.2),
"base-2.7": (
os.path.join(src_dir, "base_tests", "python2.7"),
PYOC,
"base_2.7",
2.7,
),
}
for vers in (2.7, 3.4, 3.5, 3.6):
pythonlib = "ok_lib%s" % vers
key = "ok-%s" % vers
test_options[key] = (os.path.join(src_dir, pythonlib), PYOC, key, vers)
pass
for vers in (
1.0,
1.1,
1.2,
1.3,
1.4,
1.5,
1.6,
2.1,
2.2,
2.3,
2.4,
2.5,
2.6,
2.7,
3.0,
3.1,
3.2,
3.3,
3.4,
3.5,
3.6,
3.7,
3.8,
"pypy3.2",
"pypy2.7",
"pypy3.6",
):
bytecode = "bytecode_%s" % vers
key = "bytecode-%s" % vers
test_options[key] = (bytecode, PYC, bytecode, vers)
bytecode = "bytecode_%s_run" % vers
key = "bytecode-%s-run" % vers
test_options[key] = (bytecode, PYC, bytecode, vers)
key = "%s" % vers
pythonlib = "python%s" % vers
if isinstance(vers, float) and vers >= 3.0:
pythonlib = os.path.join(pythonlib, "__pycache__")
test_options[key] = (os.path.join(lib_prefix, pythonlib), PYOC, pythonlib, vers)
for vers, vers_dot in ((37, 3.7), (38, 3.8)):
bytecode = "bytecode_pypy%s_run" % vers
key = "bytecode-pypy%s" % vers
test_options[key] = (bytecode, PYC, bytecode, vers_dot)
key = "bytecode-pypy%s" % vers_dot
test_options[key] = (bytecode, PYC, bytecode, vers_dot)
# -----
def help():
print(
"""Usage-Examples:
# compile, decompyle and verify short tests for Python 2.7:
test_pythonlib.py --bytecode-2.7 --verify --compile
# decompile all of Python's installed lib files
test_pythonlib.py --2.7
# decompile and verify known good python 2.7
test_pythonlib.py --ok-2.7 --verify
"""
)
sys.exit(1)
def do_tests(src_dir, obj_patterns, target_dir, opts):
def file_matches(files, root, basenames, patterns):
files.extend(
[
os.path.normpath(os.path.join(root, n))
for n in basenames
for pat in patterns
if fnmatch(n, pat)
]
)
files = []
# Change directories so use relative rather than
# absolute paths. This speeds up things, and allows
# main() to write to a relative-path destination.
cwd = os.getcwd()
os.chdir(src_dir)
if opts["do_compile"]:
compiled_version = opts["compiled_version"]
if compiled_version and PYTHON_VERSION_TRIPLE != compiled_version:
print(
"Not compiling: desired Python version is %s but we are running %s"
% (compiled_version, PYTHON_VERSION_TRIPLE),
file=sys.stderr,
)
else:
for root, dirs, basenames in os.walk(src_dir):
file_matches(files, root, basenames, PY)
for sfile in files:
py_compile.compile(sfile)
pass
pass
files = []
pass
pass
for root, dirs, basenames in os.walk("."):
# Turn root into a relative path
dirname = root[2:] # 2 = len('.') + 1
file_matches(files, dirname, basenames, obj_patterns)
if not files:
print(
"Didn't come up with any files to test! Try with --compile?",
file=sys.stderr,
)
exit(1)
os.chdir(cwd)
files.sort()
if opts["start_with"]:
try:
start_with = files.index(opts["start_with"])
files = files[start_with:]
print(">>> starting with file", files[0])
except ValueError:
pass
print(time.ctime())
print("Source directory: ", src_dir)
print("Output directory: ", target_dir)
try:
_, _, failed_files, failed_verify = main(
src_dir, target_dir, files, []
)
if failed_files != 0:
sys.exit(2)
elif failed_verify != 0:
sys.exit(3)
except (KeyboardInterrupt, OSError):
print()
sys.exit(1)
if test_opts["rmtree"]:
parent_dir = os.path.dirname(target_dir)
print("Everything good, removing %s" % parent_dir)
shutil.rmtree(parent_dir)
if __name__ == "__main__":
test_dirs = []
checked_dirs = []
start_with = None
test_options_keys = list(test_options.keys())
test_options_keys.sort()
opts, args = getopt.getopt(
sys.argv[1:],
"",
[
"start-with=",
"verify",
"verify-run",
"syntax-verify",
"all",
"compile",
"coverage",
"no-rm",
]
+ test_options_keys,
)
if not opts:
help()
test_opts = {
"do_compile": False,
"do_verify": False,
"start_with": None,
"rmtree": True,
"coverage": False,
}
for opt, val in opts:
if opt == "--verify":
test_opts["do_verify"] = "strong"
elif opt == "--syntax-verify":
test_opts["do_verify"] = "weak"
elif opt == "--verify-run":
test_opts["do_verify"] = "verify-run"
elif opt == "--compile":
test_opts["do_compile"] = True
elif opt == "--start-with":
test_opts["start_with"] = val
elif opt == "--no-rm":
test_opts["rmtree"] = False
elif opt[2:] in test_options_keys:
test_dirs.append(test_options[opt[2:]])
elif opt == "--all":
for val in test_options_keys:
test_dirs.append(test_options[val])
elif opt == "--coverage":
test_opts["coverage"] = True
else:
help()
pass
pass
if test_opts["coverage"]:
os.environ["SPARK_PARSER_COVERAGE"] = (
"/tmp/spark-grammar-python-lib%s.cover" % test_dirs[0][-1]
)
last_compile_version = None
for src_dir, pattern, target_dir, compiled_version in test_dirs:
if os.path.isdir(src_dir):
checked_dirs.append([src_dir, pattern, target_dir])
else:
print("Can't find directory %s. Skipping" % src_dir, file=sys.stderr)
continue
last_compile_version = compiled_version
pass
if not checked_dirs:
print("No directories found to check", file=sys.stderr)
sys.exit(1)
test_opts["compiled_version"] = last_compile_version
for src_dir, pattern, target_dir in checked_dirs:
target_dir = os.path.join(target_base, target_dir)
if os.path.exists(target_dir):
shutil.rmtree(target_dir, ignore_errors=1)
do_tests(src_dir, pattern, target_dir, test_opts)