__init__.py 文件源码

def archive_replicas(self):
        filename = safe_join(settings.BASE_DIR, "replica.sqlite3")
        has_file = os.path.exists(filename)
        if not has_file:
            return
        dirpath = safe_join(settings.BASE_DIR, "replicas")
        replicas = os.path.exists(dirpath)
        if not replicas is True:
            try:
                print("Creating replicas archive directory ...")
                os.makedirs(safe_join(settings.BASE_DIR, "replicas"))
            except OSError as exc:  # Guard against race condition
                if exc.errno != errno.EEXIST:
                    raise
        dst = safe_join(settings.BASE_DIR, "replicas")
        ts = str(int(time.time()))
        newname = "replica." + ts + ".sqlite3"
        os.rename("replica.sqlite3", newname)
        src = safe_join(settings.BASE_DIR, newname)
        print("Archiving current replica ...")
        shutil.move(src, dst)