File Roller temp files and directories are created in non-optimal place

[Bob Bib]

File Roller (including the latest version, 3.2.1) uses the ~/.cache directory for its temporary files directories, e. g.:
~/.cache/.fr-a12bc3

It creates these temporary folders with files when a user looks through the archive and double-clicks on any file inside to view it.

If File Roller exits unexpectedly, these temp files can only be removed manually.

As it can be learned from bug #245716, some times ago File Roller was even more ugly and created its temp directories directly in user home directory.

It would be much more effective to use /tmp directory for ALL the temp files and folders for two reasons:
1) /tmp directory gets cleaned on every reboot;
2) some people use tmpfs for /tmp directory, so it can be much faster.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.