Mercurial > repos > shellac > guppy_basecaller
diff env/lib/python3.7/site-packages/virtualenv/info.py @ 0:26e78fe6e8c4 draft
"planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
author | shellac |
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date | Sat, 02 May 2020 07:14:21 -0400 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/env/lib/python3.7/site-packages/virtualenv/info.py Sat May 02 07:14:21 2020 -0400 @@ -0,0 +1,65 @@ +from __future__ import absolute_import, unicode_literals + +import logging +import os +import platform +import sys +import tempfile + +IMPLEMENTATION = platform.python_implementation() +IS_PYPY = IMPLEMENTATION == "PyPy" +IS_CPYTHON = IMPLEMENTATION == "CPython" +PY3 = sys.version_info[0] == 3 +PY2 = sys.version_info[0] == 2 +IS_WIN = sys.platform == "win32" +ROOT = os.path.realpath(os.path.join(os.path.abspath(__file__), os.path.pardir, os.path.pardir)) +IS_ZIPAPP = os.path.isfile(ROOT) +WIN_CPYTHON_2 = IS_CPYTHON and IS_WIN and PY2 + +_CAN_SYMLINK = _FS_CASE_SENSITIVE = _CFG_DIR = _DATA_DIR = None + + +def fs_is_case_sensitive(): + global _FS_CASE_SENSITIVE + + if _FS_CASE_SENSITIVE is None: + with tempfile.NamedTemporaryFile(prefix="TmP") as tmp_file: + _FS_CASE_SENSITIVE = not os.path.exists(tmp_file.name.lower()) + logging.debug("filesystem is %scase-sensitive", "" if _FS_CASE_SENSITIVE else "not ") + return _FS_CASE_SENSITIVE + + +def fs_supports_symlink(): + global _CAN_SYMLINK + + if _CAN_SYMLINK is None: + can = False + if hasattr(os, "symlink"): + if IS_WIN: + with tempfile.NamedTemporaryFile(prefix="TmP") as tmp_file: + temp_dir = os.path.dirname(tmp_file.name) + dest = os.path.join(temp_dir, "{}-{}".format(tmp_file.name, "b")) + try: + os.symlink(tmp_file.name, dest) + can = True + except (OSError, NotImplementedError): + pass + logging.debug("symlink on filesystem does%s work", "" if can else " not") + else: + can = True + _CAN_SYMLINK = can + return _CAN_SYMLINK + + +__all__ = ( + "IS_PYPY", + "IS_CPYTHON", + "PY3", + "PY2", + "IS_WIN", + "fs_is_case_sensitive", + "fs_supports_symlink", + "ROOT", + "IS_ZIPAPP", + "WIN_CPYTHON_2", +)