Method update

modules/view.py:101–142

Write view's content to a temporary file as source for git diff. The file is updated only if the view.change_count() has changed to reduce the number of required disk writes. Returns: bool: True indicates updated file. False is returned if file

(self)

        )

    def update(self):
        """Write view's content to a temporary file as source for git diff.

        The file is updated only if the view.change_count() has changed to
        reduce the number of required disk writes.

        Returns:
            bool: True indicates updated file.
                  False is returned if file is up to date.
        """
        # check change counter if exists
        change_count = 0
        if _HAVE_VIEW_CHANGE_COUNT:
            # write view buffer to file only, if changed
            change_count = self.view.change_count()
            if self._change_count == change_count:
                return False

        # invalidate internal cache
        self.invalidate()

        # Try conversion
        encoding = self.python_friendly_encoding()
        try:
            encoded = self.text.encode(encoding)
        except (LookupError, UnicodeError):
            # Fallback to utf8-encoding
            encoded = self.text.encode('utf-8')

        # Write the encoded content to file
        try:
            with self as file:
                if encoding == 'utf-8-sig':
                    file.write(codecs.BOM_UTF8)
                file.write(encoded)
        except OSError as error:
            print('GitGutter failed to create view cache: %s' % error)
            return False

        # Update internal change counter after job is done
        self._change_count = change_count
        return True

    def python_friendly_encoding(self):
        """Read view encoding and transform it for use with python.