def _check_executable_mismatch(self, shebang_token) -> None:
is_executable = is_executable_file(self.filename)
if is_executable and shebang_token is None:
self.add_violation(
ShebangViolation(
text='file is executable but no shebang is present', ), )
if not is_executable and shebang_token is not None:
self.add_violation(
ShebangViolation(
text='shebang is present but the file is not executable',
), )
def _check_valid_shebang(self, token: tokenize.TokenInfo) -> None:
if self._python_executable not in token.line:
self.add_violation(
ShebangViolation(
text='shebang is present but does not contain `python`', ),
)
if token.start[1] != 0:
self.add_violation(
ShebangViolation(
text='there is a whitespace before shebang', ), )
if token.start[0] != 1:
self.add_violation(
ShebangViolation(
text='there are blank or comment lines before shebang', ),
)
def _check_valid_shebang(self, shebang_token: tokenize.TokenInfo) -> None:
token_line = shebang_token.line
on_first_line = shebang_token.start[0] == 1
first_line_token = shebang_token.start[1] == 0
if self._python_executable not in token_line:
self.add_violation(
ShebangViolation(
text='shebang is present but does not contain `python`', ),
)
if not first_line_token:
self.add_violation(
ShebangViolation(
text='there is whitespace before shebang', ), )
if not on_first_line:
self.add_violation(
ShebangViolation(
text='there are blank or comment lines before shebang', ),
)
def _check_executable_mismatch(
self,
token: tokenize.TokenInfo,
*,
is_shebang: bool,
) -> None:
if is_windows() or self.filename == STDIN:
# Windows does not have this concept of "executable" file.
# The same for STDIN inputs.
return
is_executable = is_executable_file(self.filename)
if is_executable and not is_shebang:
self.add_violation(
ShebangViolation(
text='file is executable but no shebang is present', ), )
elif not is_executable and is_shebang:
self.add_violation(
ShebangViolation(
text='shebang is present but the file is not executable',
), )