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authoralexv-smirnov <[email protected]>2023-03-28 22:25:04 +0300
committeralexv-smirnov <[email protected]>2023-03-28 22:25:04 +0300
commitb8a17f9b1c166d2e9a26b99348a4c29d972caf55 (patch)
tree1a2d881f1a9452b9c6103dbf69d73da7624e98e5 /contrib/tools/cython/Cython/Utils.py
parent25659221f18577ea38430a8ec3349836f5626b6a (diff)
Revert ymake build from ydb oss export
Diffstat (limited to 'contrib/tools/cython/Cython/Utils.py')
-rw-r--r--contrib/tools/cython/Cython/Utils.py470
1 files changed, 0 insertions, 470 deletions
diff --git a/contrib/tools/cython/Cython/Utils.py b/contrib/tools/cython/Cython/Utils.py
deleted file mode 100644
index 69563794c4e..00000000000
--- a/contrib/tools/cython/Cython/Utils.py
+++ /dev/null
@@ -1,470 +0,0 @@
-#
-# Cython -- Things that don't belong
-# anywhere else in particular
-#
-
-from __future__ import absolute_import
-
-try:
- from __builtin__ import basestring
-except ImportError:
- basestring = str
-
-try:
- FileNotFoundError
-except NameError:
- FileNotFoundError = OSError
-
-import os
-import sys
-import re
-import io
-import codecs
-import shutil
-import tempfile
-from contextlib import contextmanager
-
-modification_time = os.path.getmtime
-
-_function_caches = []
-def clear_function_caches():
- for cache in _function_caches:
- cache.clear()
-
-def cached_function(f):
- cache = {}
- _function_caches.append(cache)
- uncomputed = object()
- def wrapper(*args):
- res = cache.get(args, uncomputed)
- if res is uncomputed:
- res = cache[args] = f(*args)
- return res
- wrapper.uncached = f
- return wrapper
-
-def cached_method(f):
- cache_name = '__%s_cache' % f.__name__
- def wrapper(self, *args):
- cache = getattr(self, cache_name, None)
- if cache is None:
- cache = {}
- setattr(self, cache_name, cache)
- if args in cache:
- return cache[args]
- res = cache[args] = f(self, *args)
- return res
- return wrapper
-
-def replace_suffix(path, newsuf):
- base, _ = os.path.splitext(path)
- return base + newsuf
-
-
-def open_new_file(path):
- if os.path.exists(path):
- # Make sure to create a new file here so we can
- # safely hard link the output files.
- os.unlink(path)
-
- # we use the ISO-8859-1 encoding here because we only write pure
- # ASCII strings or (e.g. for file names) byte encoded strings as
- # Unicode, so we need a direct mapping from the first 256 Unicode
- # characters to a byte sequence, which ISO-8859-1 provides
-
- # note: can't use io.open() in Py2 as we may be writing str objects
- return codecs.open(path, "w", encoding="ISO-8859-1")
-
-
-def castrate_file(path, st):
- # Remove junk contents from an output file after a
- # failed compilation.
- # Also sets access and modification times back to
- # those specified by st (a stat struct).
- try:
- f = open_new_file(path)
- except EnvironmentError:
- pass
- else:
- f.write(
- "#error Do not use this file, it is the result of a failed Cython compilation.\n")
- f.close()
- if st:
- os.utime(path, (st.st_atime, st.st_mtime-1))
-
-def file_newer_than(path, time):
- ftime = modification_time(path)
- return ftime > time
-
-
-def safe_makedirs(path):
- try:
- os.makedirs(path)
- except OSError:
- if not os.path.isdir(path):
- raise
-
-
-def copy_file_to_dir_if_newer(sourcefile, destdir):
- """
- Copy file sourcefile to directory destdir (creating it if needed),
- preserving metadata. If the destination file exists and is not
- older than the source file, the copying is skipped.
- """
- destfile = os.path.join(destdir, os.path.basename(sourcefile))
- try:
- desttime = modification_time(destfile)
- except OSError:
- # New file does not exist, destdir may or may not exist
- safe_makedirs(destdir)
- else:
- # New file already exists
- if not file_newer_than(sourcefile, desttime):
- return
- shutil.copy2(sourcefile, destfile)
-
-
-@cached_function
-def find_root_package_dir(file_path):
- dir = os.path.dirname(file_path)
- if file_path == dir:
- return dir
- elif is_package_dir(dir):
- return find_root_package_dir(dir)
- else:
- return dir
-
-@cached_function
-def check_package_dir(dir, package_names):
- for dirname in package_names:
- dir = os.path.join(dir, dirname)
- if not is_package_dir(dir):
- return None
- return dir
-
-@cached_function
-def is_package_dir(dir_path):
- for filename in ("__init__.py",
- "__init__.pyc",
- "__init__.pyx",
- "__init__.pxd"):
- path = os.path.join(dir_path, filename)
- if path_exists(path):
- return 1
-
-@cached_function
-def path_exists(path):
- # try on the filesystem first
- if os.path.exists(path):
- return True
- # figure out if a PEP 302 loader is around
- try:
- loader = __loader__
- # XXX the code below assumes a 'zipimport.zipimporter' instance
- # XXX should be easy to generalize, but too lazy right now to write it
- archive_path = getattr(loader, 'archive', None)
- if archive_path:
- normpath = os.path.normpath(path)
- if normpath.startswith(archive_path):
- arcname = normpath[len(archive_path)+1:]
- try:
- loader.get_data(arcname)
- return True
- except IOError:
- return False
- except NameError:
- pass
- return False
-
-# file name encodings
-
-def decode_filename(filename):
- if isinstance(filename, bytes):
- try:
- filename_encoding = sys.getfilesystemencoding()
- if filename_encoding is None:
- filename_encoding = sys.getdefaultencoding()
- filename = filename.decode(filename_encoding)
- except UnicodeDecodeError:
- pass
- return filename
-
-# support for source file encoding detection
-
-_match_file_encoding = re.compile(br"(\w*coding)[:=]\s*([-\w.]+)").search
-
-
-def detect_opened_file_encoding(f):
- # PEPs 263 and 3120
- # Most of the time the first two lines fall in the first couple of hundred chars,
- # and this bulk read/split is much faster.
- lines = ()
- start = b''
- while len(lines) < 3:
- data = f.read(500)
- start += data
- lines = start.split(b"\n")
- if not data:
- break
- m = _match_file_encoding(lines[0])
- if m and m.group(1) != b'c_string_encoding':
- return m.group(2).decode('iso8859-1')
- elif len(lines) > 1:
- m = _match_file_encoding(lines[1])
- if m:
- return m.group(2).decode('iso8859-1')
- return "UTF-8"
-
-
-def skip_bom(f):
- """
- Read past a BOM at the beginning of a source file.
- This could be added to the scanner, but it's *substantially* easier
- to keep it at this level.
- """
- if f.read(1) != u'\uFEFF':
- f.seek(0)
-
-
-def open_source_file(source_filename, encoding=None, error_handling=None):
- stream = None
- try:
- if encoding is None:
- # Most of the time the encoding is not specified, so try hard to open the file only once.
- f = io.open(source_filename, 'rb')
- encoding = detect_opened_file_encoding(f)
- f.seek(0)
- stream = io.TextIOWrapper(f, encoding=encoding, errors=error_handling)
- else:
- stream = io.open(source_filename, encoding=encoding, errors=error_handling)
-
- except OSError:
- if os.path.exists(source_filename):
- raise # File is there, but something went wrong reading from it.
- # Allow source files to be in zip files etc.
- try:
- loader = __loader__
- if source_filename.startswith(loader.archive):
- stream = open_source_from_loader(
- loader, source_filename,
- encoding, error_handling)
- except (NameError, AttributeError):
- pass
-
- if stream is None:
- raise FileNotFoundError(source_filename)
- skip_bom(stream)
- return stream
-
-
-def open_source_from_loader(loader,
- source_filename,
- encoding=None, error_handling=None):
- nrmpath = os.path.normpath(source_filename)
- arcname = nrmpath[len(loader.archive)+1:]
- data = loader.get_data(arcname)
- return io.TextIOWrapper(io.BytesIO(data),
- encoding=encoding,
- errors=error_handling)
-
-
-def str_to_number(value):
- # note: this expects a string as input that was accepted by the
- # parser already, with an optional "-" sign in front
- is_neg = False
- if value[:1] == '-':
- is_neg = True
- value = value[1:]
- if len(value) < 2:
- value = int(value, 0)
- elif value[0] == '0':
- literal_type = value[1] # 0'o' - 0'b' - 0'x'
- if literal_type in 'xX':
- # hex notation ('0x1AF')
- value = int(value[2:], 16)
- elif literal_type in 'oO':
- # Py3 octal notation ('0o136')
- value = int(value[2:], 8)
- elif literal_type in 'bB':
- # Py3 binary notation ('0b101')
- value = int(value[2:], 2)
- else:
- # Py2 octal notation ('0136')
- value = int(value, 8)
- else:
- value = int(value, 0)
- return -value if is_neg else value
-
-
-def long_literal(value):
- if isinstance(value, basestring):
- value = str_to_number(value)
- return not -2**31 <= value < 2**31
-
-
-@cached_function
-def get_cython_cache_dir():
- r"""
- Return the base directory containing Cython's caches.
-
- Priority:
-
- 1. CYTHON_CACHE_DIR
- 2. (OS X): ~/Library/Caches/Cython
- (posix not OS X): XDG_CACHE_HOME/cython if XDG_CACHE_HOME defined
- 3. ~/.cython
-
- """
- if 'CYTHON_CACHE_DIR' in os.environ:
- return os.environ['CYTHON_CACHE_DIR']
-
- parent = None
- if os.name == 'posix':
- if sys.platform == 'darwin':
- parent = os.path.expanduser('~/Library/Caches')
- else:
- # this could fallback on ~/.cache
- parent = os.environ.get('XDG_CACHE_HOME')
-
- if parent and os.path.isdir(parent):
- return os.path.join(parent, 'cython')
-
- # last fallback: ~/.cython
- return os.path.expanduser(os.path.join('~', '.cython'))
-
-
-@contextmanager
-def captured_fd(stream=2, encoding=None):
- orig_stream = os.dup(stream) # keep copy of original stream
- try:
- with tempfile.TemporaryFile(mode="a+b") as temp_file:
- def read_output(_output=[b'']):
- if not temp_file.closed:
- temp_file.seek(0)
- _output[0] = temp_file.read()
- return _output[0]
-
- os.dup2(temp_file.fileno(), stream) # replace stream by copy of pipe
- try:
- def get_output():
- result = read_output()
- return result.decode(encoding) if encoding else result
-
- yield get_output
- finally:
- os.dup2(orig_stream, stream) # restore original stream
- read_output() # keep the output in case it's used after closing the context manager
- finally:
- os.close(orig_stream)
-
-
-def print_bytes(s, header_text=None, end=b'\n', file=sys.stdout, flush=True):
- if header_text:
- file.write(header_text) # note: text! => file.write() instead of out.write()
- file.flush()
- try:
- out = file.buffer # Py3
- except AttributeError:
- out = file # Py2
- out.write(s)
- if end:
- out.write(end)
- if flush:
- out.flush()
-
-class LazyStr:
- def __init__(self, callback):
- self.callback = callback
- def __str__(self):
- return self.callback()
- def __repr__(self):
- return self.callback()
- def __add__(self, right):
- return self.callback() + right
- def __radd__(self, left):
- return left + self.callback()
-
-
-class OrderedSet(object):
- def __init__(self, elements=()):
- self._list = []
- self._set = set()
- self.update(elements)
- def __iter__(self):
- return iter(self._list)
- def update(self, elements):
- for e in elements:
- self.add(e)
- def add(self, e):
- if e not in self._set:
- self._list.append(e)
- self._set.add(e)
-
-
-# Class decorator that adds a metaclass and recreates the class with it.
-# Copied from 'six'.
-def add_metaclass(metaclass):
- """Class decorator for creating a class with a metaclass."""
- def wrapper(cls):
- orig_vars = cls.__dict__.copy()
- slots = orig_vars.get('__slots__')
- if slots is not None:
- if isinstance(slots, str):
- slots = [slots]
- for slots_var in slots:
- orig_vars.pop(slots_var)
- orig_vars.pop('__dict__', None)
- orig_vars.pop('__weakref__', None)
- return metaclass(cls.__name__, cls.__bases__, orig_vars)
- return wrapper
-
-
-def raise_error_if_module_name_forbidden(full_module_name):
- #it is bad idea to call the pyx-file cython.pyx, so fail early
- if full_module_name == 'cython' or full_module_name.startswith('cython.'):
- raise ValueError('cython is a special module, cannot be used as a module name')
-
-
-def build_hex_version(version_string):
- """
- Parse and translate '4.3a1' into the readable hex representation '0x040300A1' (like PY_VERSION_HEX).
- """
- # First, parse '4.12a1' into [4, 12, 0, 0xA01].
- digits = []
- release_status = 0xF0
- for digit in re.split('([.abrc]+)', version_string):
- if digit in ('a', 'b', 'rc'):
- release_status = {'a': 0xA0, 'b': 0xB0, 'rc': 0xC0}[digit]
- digits = (digits + [0, 0])[:3] # 1.2a1 -> 1.2.0a1
- elif digit != '.':
- digits.append(int(digit))
- digits = (digits + [0] * 3)[:4]
- digits[3] += release_status
-
- # Then, build a single hex value, two hex digits per version part.
- hexversion = 0
- for digit in digits:
- hexversion = (hexversion << 8) + digit
-
- return '0x%08X' % hexversion
-
-
-def write_depfile(target, source, dependencies):
- src_base_dir = os.path.dirname(source)
- cwd = os.getcwd()
- if not src_base_dir.endswith(os.sep):
- src_base_dir += os.sep
- # paths below the base_dir are relative, otherwise absolute
- paths = []
- for fname in dependencies:
- fname = os.path.abspath(fname)
- if fname.startswith(src_base_dir):
- paths.append(os.path.relpath(fname, cwd))
- else:
- paths.append(fname)
-
- depline = os.path.relpath(target, cwd) + ": \\\n "
- depline += " \\\n ".join(paths) + "\n"
-
- with open(target+'.dep', 'w') as outfile:
- outfile.write(depline)