Python stat.S_IWRITE属性代码示例

# 需要导入模块: import stat [as 别名]
# 或者: from stat import S_IWRITE [as 别名]
def copymode(src, dst, follow_symlinks=True, **kwargs):
    """
    Copy the permission bits from src to dst. The file contents, owner, and group are unaffected. Due to the
    limitations of Windows, this function only sets/unsets the dst's FILE_ATTRIBUTE_READ_ONLY flag based on what src's
    attribute is set to.

    If follow_symlinks is 'False', and both src and dst are symbolic links, copymode() will attempt to modify the mode
    of dst itself (rather than the file it points to).

    This function supports src and dst being either a local or UNC path. A relative path will be resolved based on the
    current working directory.

    :param src: The src file or directory to copy the read only flag from.
    :param dst: The dst file or directory to copy the read only flag to.
    :param follow_symlinks: Whether to copy the read only flag on the symlink or the target of the symlink.
    :param kwargs: Common arguments used to build the SMB Session for any UNC paths.
    """
    src_mode = stat.S_IMODE(_get_file_stat(src, follow_symlinks, **kwargs).st_mode)

    norm_dst = ntpath.normpath(dst)
    if norm_dst.startswith('\\\\'):
        read_only = not (src_mode & stat.S_IWRITE == stat.S_IWRITE and src_mode & stat.S_IREAD == stat.S_IREAD)
        _set_file_basic_info(dst, follow_symlinks, read_only=read_only, **kwargs)
    else:
        _local_chmod(dst, src_mode, follow_symlinks) 

# 需要导入模块: import stat [as 别名]
# 或者: from stat import S_IWRITE [as 别名]
def test_copymode_remote_to_local(smb_share, tmpdir):
    test_dir = tmpdir.mkdir("test")
    src_filename = "%s\\source.txt" % smb_share
    dst_filename = "%s\\target.txt" % test_dir

    with open_file(src_filename, mode='w', file_attributes=FileAttributes.FILE_ATTRIBUTE_READONLY) as fd:
        fd.write(u"content")

    with open(dst_filename, mode='w') as fd:
        fd.write(u"content")

    copymode(src_filename, dst_filename)

    actual = os.stat(dst_filename).st_mode
    assert stat.S_IMODE(actual) & stat.S_IWRITE == 0

    remove(src_filename)
    with open_file(src_filename, mode='w') as fd:
        fd.write(u"content")

    copymode(src_filename, dst_filename)

    actual = os.stat(dst_filename).st_mode
    assert stat.S_IMODE(actual) & stat.S_IWRITE == stat.S_IWRITE 

# 需要导入模块: import stat [as 别名]
# 或者: from stat import S_IWRITE [as 别名]
def test_copystat_remote_to_local(smb_share, tmpdir):
    test_dir = tmpdir.mkdir("test")
    src_filename = "%s\\source.txt" % smb_share
    dst_filename = "%s\\target.txt" % test_dir

    with open_file(src_filename, mode='w', file_attributes=FileAttributes.FILE_ATTRIBUTE_READONLY) as fd:
        fd.write(u"content")
    utime(src_filename, times=(1024, 1024))

    with open(dst_filename, mode='w') as fd:
        fd.write(u"content")

    copystat(src_filename, dst_filename)

    actual = os.stat(dst_filename)
    assert actual.st_atime == 1024
    assert actual.st_mtime == 1024
    assert stat.S_IMODE(actual.st_mode) & stat.S_IWRITE == 0 

# 需要导入模块: import stat [as 别名]
# 或者: from stat import S_IWRITE [as 别名]
def test_copystat_local_to_local(tmpdir):
    test_dir = tmpdir.mkdir("test")
    src_filename = "%s\\source.txt" % test_dir
    dst_filename = "%s\\target.txt" % test_dir

    with open(src_filename, mode='w') as fd:
        fd.write(u"content")
    os.chmod(src_filename, stat.S_IREAD)
    os.utime(src_filename, (1024, 1024))

    with open(dst_filename, mode='w') as fd:
        fd.write(u"content")

    copystat(src_filename, dst_filename)

    actual = os.stat(dst_filename)
    assert actual.st_atime == 1024
    assert actual.st_mtime == 1024
    assert stat.S_IMODE(actual.st_mode) & stat.S_IWRITE == 0 

# 需要导入模块: import stat [as 别名]
# 或者: from stat import S_IWRITE [as 别名]
def ___test_folder_not_writeable(self):
        # make sure we get permissions error and not 'database is locked'
        s = ts.SetupDbAndCredentials()
        s.test_setup("test_folder_not_writeable", trash_files=True, trash_db=True)
        try:
            if os.name == "nt":
                os.chmod(str(s.root), stat.S_IREAD)
            else:
                s.root.chmod(0o444)
            with self.assertRaises(PermissionError):
                s.gp.main([str(s.root), "--skip-shared-albums"])
        finally:
            if os.name == "nt":
                os.chmod(str(s.root), stat.S_IWRITE | stat.S_IREAD)
            else:
                os.chmod(str(s.root), 0o777)
            shutil.rmtree(str(s.root)) 

# 需要导入模块: import stat [as 别名]
# 或者: from stat import S_IWRITE [as 别名]
def open(self):
        """Reads file.

        :return: byte string.

        """
        if self.path.endswith('.mp3'):
            try:
                stream = open(self.path, 'r+b')
            except PermissionError:
                os.chmod(self.path, S_IWRITE)
                stream = open(self.path, 'r+b')
        else:
            raise MP3OpenFileError('File must be MP3 format')
        data = stream.read()
        stream.close()
        return data 

# 需要导入模块: import stat [as 别名]
# 或者: from stat import S_IWRITE [as 别名]
def rmtree_errorhandler(func, path, exc_info):
    """
    On Windows, some files are read-only (e.g. in in .svn dirs), so when
    rmtree() tries to remove them, an exception is thrown.
    We catch that here, remove the read-only attribute, and hopefully
    continue without problems.
    """
    exctype, value = exc_info[:2]
    # looking for a windows error
    if exctype is not WindowsError or 'Access is denied' not in str(value):
        raise
    # file type should currently be read only
    if ((os.stat(path).st_mode & stat.S_IREAD) != stat.S_IREAD):
        raise
    # convert to read/write
    os.chmod(path, stat.S_IWRITE)
    # use the original function to repeat the operation
    func(path) 

# 需要导入模块: import stat [as 别名]
# 或者: from stat import S_IWRITE [as 别名]
def copyFunc(dest, source, env):
    """Install a source file or directory into a destination by copying,
    (including copying permission/mode bits)."""

    if os.path.isdir(source):
        if os.path.exists(dest):
            if not os.path.isdir(dest):
                raise SCons.Errors.UserError("cannot overwrite non-directory `%s' with a directory `%s'" % (str(dest), str(source)))
        else:
            parent = os.path.split(dest)[0]
            if not os.path.exists(parent):
                os.makedirs(parent)
        scons_copytree(source, dest)
    else:
        shutil.copy2(source, dest)
        st = os.stat(source)
        os.chmod(dest, stat.S_IMODE(st[stat.ST_MODE]) | stat.S_IWRITE)

    return 0

#
# Functions doing the actual work of the InstallVersionedLib Builder.
# 

# 需要导入模块: import stat [as 别名]
# 或者: from stat import S_IWRITE [as 别名]
def copyFuncVersionedLib(dest, source, env):
    """Install a versioned library into a destination by copying,
    (including copying permission/mode bits) and then creating
    required symlinks."""

    if os.path.isdir(source):
        raise SCons.Errors.UserError("cannot install directory `%s' as a version library" % str(source) )
    else:
        # remove the link if it is already there
        try:
            os.remove(dest)
        except:
            pass
        shutil.copy2(source, dest)
        st = os.stat(source)
        os.chmod(dest, stat.S_IMODE(st[stat.ST_MODE]) | stat.S_IWRITE)
        installShlibLinks(dest, source, env)

    return 0 

# 需要导入模块: import stat [as 别名]
# 或者: from stat import S_IWRITE [as 别名]
def CacheRetrieveFunc(target, source, env):
    t = target[0]
    fs = t.fs
    cd = env.get_CacheDir()
    cachedir, cachefile = cd.cachepath(t)
    if not fs.exists(cachefile):
        cd.CacheDebug('CacheRetrieve(%s):  %s not in cache\n', t, cachefile)
        return 1
    cd.CacheDebug('CacheRetrieve(%s):  retrieving from %s\n', t, cachefile)
    if SCons.Action.execute_actions:
        if fs.islink(cachefile):
            fs.symlink(fs.readlink(cachefile), t.get_internal_path())
        else:
            env.copy_from_cache(cachefile, t.get_internal_path())
            try:
                os.utime(cachefile, None)
            except OSError:
                pass
        st = fs.stat(cachefile)
        fs.chmod(t.get_internal_path(), stat.S_IMODE(st[stat.ST_MODE]) | stat.S_IWRITE)
    return 0 

# 需要导入模块: import stat [as 别名]
# 或者: from stat import S_IWRITE [as 别名]
def removePath(path):
    if sys.platform == "win32":
        def onerror(func, path, exc):
            os.chmod(path, stat.S_IWRITE)
            os.unlink(path)
    else:
        onerror = None

    try:
        if os.path.lexists(path):
            if os.path.isdir(path) and not os.path.islink(path):
                shutil.rmtree(path, onerror=onerror)
            else:
                os.unlink(path)
    except OSError as e:
        raise BuildError("Error removing '"+path+"': " + str(e)) 

# 需要导入模块: import stat [as 别名]
# 或者: from stat import S_IWRITE [as 别名]
def test_remove_negative(self):
        import stat
        self.assertRaisesNumber(WindowsError, errno.ENOENT, lambda : nt.remove('some_file_that_does_not_exist'))
        try:
            file('some_test_file.txt', 'w').close()
            nt.chmod('some_test_file.txt', stat.S_IREAD)
            self.assertRaisesNumber(WindowsError, errno.EACCES, lambda : nt.remove('some_test_file.txt'))
            nt.chmod('some_test_file.txt', stat.S_IWRITE)
            
            f = file('some_test_file.txt', 'w+')
            self.assertRaisesNumber(WindowsError, errno.EACCES, lambda : nt.remove('some_test_file.txt'))
            f.close()
        finally:
            nt.chmod('some_test_file.txt', stat.S_IWRITE)
            nt.unlink('some_test_file.txt')
            
            

    # rename tests 

# 需要导入模块: import stat [as 别名]
# 或者: from stat import S_IWRITE [as 别名]
def test_access(self):
        f = file('new_file_name', 'w')
        f.close()
        
        self.assertEqual(nt.access('new_file_name', nt.F_OK), True)
        self.assertEqual(nt.access('new_file_name', nt.R_OK), True)
        self.assertEqual(nt.access('does_not_exist.py', nt.F_OK), False)
        self.assertEqual(nt.access('does_not_exist.py', nt.R_OK), False)

        nt.chmod('new_file_name', 0x100) # S_IREAD
        self.assertEqual(nt.access('new_file_name', nt.W_OK), False)
        nt.chmod('new_file_name', 0x80)  # S_IWRITE
            
        nt.unlink('new_file_name')
        
        nt.mkdir('new_dir_name')
        self.assertEqual(nt.access('new_dir_name', nt.R_OK), True)
        nt.rmdir('new_dir_name')
        
        self.assertRaises(TypeError, nt.access, None, 1) 

# 需要导入模块: import stat [as 别名]
# 或者: from stat import S_IWRITE [as 别名]
def CacheRetrieveFunc(target, source, env):
    t = target[0]
    fs = t.fs
    cd = env.get_CacheDir()
    cachedir, cachefile = cd.cachepath(t)
    if not fs.exists(cachefile):
        cd.CacheDebug('CacheRetrieve(%s):  %s not in cache\n', t, cachefile)
        return 1
    cd.CacheDebug('CacheRetrieve(%s):  retrieving from %s\n', t, cachefile)
    if SCons.Action.execute_actions:
        if fs.islink(cachefile):
            fs.symlink(fs.readlink(cachefile), t.get_internal_path())
        else:
            env.copy_from_cache(cachefile, t.get_internal_path())
        st = fs.stat(cachefile)
        fs.chmod(t.get_internal_path(), stat.S_IMODE(st[stat.ST_MODE]) | stat.S_IWRITE)
    return 0 

# 需要导入模块: import stat [as 别名]
# 或者: from stat import S_IWRITE [as 别名]
def handle_rm_readonly_files(_func, path, exc):
    """Handle read-only files on Windows. Adapted from https://stackoverflow.com/a/21263493.

    Args:
        _func (function): Function which raised the exception
        path (str): Path name passed to function
        exc (exception): Exception information returned by sys.exc_info()

    Raises:
        OSError: Raised if the read-only files are unable to be handled
    """
    assert platform.system() == "Windows"
    path = Path(path)
    if exc[1].errno == errno.EACCES:
        Path.chmod(path, stat.S_IWRITE)
        assert path.is_file()
        path.unlink()
    else:
        raise OSError("Unable to handle read-only files.")