Function flush_

salt/cache/mmap_cache.py:243–273

Remove *key* from *bank*, or clear the entire *bank* if *key* is ``None``. Clearing a bank removes the mmap files from the registry and deletes them from disk, mirroring ``localfs`` behaviour where ``shutil.rmtree`` removes the bank directory.

(bank, key=None, cachedir=None, **kwargs)

def flush_(bank, key=None, cachedir=None, **kwargs):
    """
    Remove *key* from *bank*, or clear the entire *bank* if *key* is ``None``.

    Clearing a bank removes the mmap files from the registry and deletes them
    from disk, mirroring ``localfs`` behaviour where ``shutil.rmtree`` removes
    the bank directory.
    """
    if cachedir is None:
        cachedir = __cachedir()

    if key is None:
        # Flush entire bank: evict from registry, remove files from disk.
        cache_key = (cachedir, bank)
        entry = _caches.pop(cache_key, None)
        if entry is not None:
            entry[1].close()

        bank_dir = salt.utils.path.join(cachedir, os.path.normpath(bank))
        if not os.path.isdir(bank_dir):
            return False

        # Remove just the mmap files, leave the directory structure intact
        # so that sub-banks are not inadvertently destroyed.
        removed = False
        index_base = os.path.join(bank_dir, ".mmap_cache.idx")
        return _unlink_mmap_bank_files(index_base, strict_remove=True)

    cache = _get_cache(bank, cachedir)
    deleted = cache.delete(key)
    return deleted


def list_(bank, cachedir, **kwargs):