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test_pythonlib.py
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executable file
·255 lines (205 loc) · 7.57 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, os, py_compile, sys, shutil, tempfile, time
from uncompyle6 import PYTHON_VERSION
from uncompyle6.main import main
from fnmatch import fnmatch
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', 3.5),
'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 (1.5,
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, 'pypy3.2', 'pypy2.7'):
bytecode = "bytecode_%s" % vers
key = "bytecode-%s" % 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)
#-----
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 != compiled_version:
print("Not compiling: desired Python version is %s but we are running %s" %
(compiled_version, PYTHON_VERSION), 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, [],
do_verify=opts['do_verify'])
if failed_files != 0:
exit(2)
elif failed_verify != 0:
exit(3)
except (KeyboardInterrupt, OSError):
print()
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', 'weak-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'] = True
elif opt == '--weak-verify':
test_opts['do_verify'] = 'weak'
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-%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)