Backup fails for datasources with multiple slashes in their name

[bryan-kc]

Reappearance of the bug found in #114

The backup utility fails for this data source. The data source has a name that includes the full path to the data source

FileNotFoundError: [Errno 2] No such file or directory: '_OUTPUT_/datasources/202111191136/Graphite | MetricTank | https://example.com/graphite.datasource'

[acjohnson]

@bryan-kc Can you provide the entire stack trace rather than just the error. It should provide output and file line information to help us know where the error is occuring

[bryan-kc]

Hi, sorry for not including the stacktrace. See the included trace below.

Traceback (most recent call last):
  File "/usr/local/bin/grafana-backup", line 8, in <module>
    sys.exit(main())
  File "/usr/local/lib/python3.9/site-packages/grafana_backup/cli.py", line 50, in main
    save(args, settings)
  File "/usr/local/lib/python3.9/site-packages/grafana_backup/save.py", line 51, in main
    backup_functions[backup_function](args, settings)
  File "/usr/local/lib/python3.9/site-packages/grafana_backup/save_datasources.py", line 22, in main
    get_all_datasources_and_save(folder_path, grafana_url, http_get_headers, verify_ssl, client_cert, debug, pretty_print)
  File "/usr/local/lib/python3.9/site-packages/grafana_backup/save_datasources.py", line 38, in get_all_datasources_and_save
    save_datasource(datasource['name'], datasource, folder_path, pretty_print)
  File "/usr/local/lib/python3.9/site-packages/grafana_backup/save_datasources.py", line 27, in save_datasource
    file_path = save_json(file_name, datasource_setting, folder_path, 'datasource', pretty_print)
  File "/usr/local/lib/python3.9/site-packages/grafana_backup/commons.py", line 47, in save_json
    with open(u"{0}".format(file_path), 'w') as f:
FileNotFoundError: [Errno 2] No such file or directory: '_OUTPUT_/datasources/202111191136/Graphite | MetricTank | https://example.com/graphite.datasource'