scripts.multiemitter Namespace Reference

Classes
class	MultiEmitter

Functions
	_WriteFile (path, lines)

Variables
	_logger = logging.getLogger('multiemitter')

Detailed Description

Templating to help generate structured text.

Function Documentation

_WriteFile()

scripts.multiemitter._WriteFile (   path,   lines  )

protected

Definition at line 72 of file multiemitter.py.

def _WriteFile(path, lines):
    (dir, file) = os.path.split(path)
 
    # Ensure dir exists.
    if dir:
        if not os.path.isdir(dir):
            _logger.info('Mkdir - %s' % dir)
            os.makedirs(dir)
 
    # If file exists and is unchanged, return.
    new_contents = ''.join(lines)
    if os.path.exists(path):
        with open(path) as fd:
            contents = fd.read()
        if new_contents == contents:
            _logger.info('Unchanged file %s' % path)
            return
 
    # Write the file.
    num_attempts = 4
    for i in range(num_attempts):
        try:
            _logger.info('Writing (attempt %d) - %s' % (i + 1, path))
            with open(path, 'w') as fd:
                fd.write(new_contents)
            return
        except IOError as error:
            last_attempt = (i == (num_attempts - 1))
            if not last_attempt:
                # Sleep for 50 ms and try again
                time.sleep(0.05)
            else:
                _logger.info('Got exception (%s) ' % error)
                raise error

Variable Documentation

_logger

scripts.multiemitter._logger = logging.getLogger('multiemitter')

protected

Definition at line 14 of file multiemitter.py.