Strange Folders/Permissions in ~/.cache

[Douglas Summers]

On Wed, 2019-01-02 at 17:02 -0500, Matthias Clasen wrote:
> 
> 
> On Sat, Dec 29, 2018 at 1:35 AM Douglas Summers <ajgringo619 at cox.net>
> wrote:
> > I'm trying to figure out what these folders are and why the
> > permissions
> > are so strange.
> > 
> > In my ~/.cache, I have a folder called 'doc'. 'ls -l' shows me
> > this:
> > d?????????  ? ?        ?           ?            ? doc
> > 
> > Diggin further, I found these Flatpak folders underneath it:
> > doc:
> > total 0
> > drwx------ 2 root root 0 Dec 31  1969 b21f992a
> > dr-x------ 2 root root 0 Dec 31  1969 by-app
> > drwx------ 2 root root 0 Dec 31  1969 f83e274f
> > 
> > doc/b21f992a:
> > total 0
> > 
> > doc/by-app:
> > total 0
> > dr-x------ 2 root root 0 Dec 31  1969 org.gnome.Evolution
> > dr-x------ 2 root root 0 Dec 31  1969 org.kde.okular
> > 
> > doc/by-app/org.gnome.Evolution:
> > total 0
> > drwx------ 2 root root 0 Dec 31  1969 f83e274f
> > 
> > doc/by-app/org.gnome.Evolution/f83e274f:
> > total 0
> > 
> > doc/by-app/org.kde.okular:
> > total 0
> > drwx------ 2 root root 0 Dec 31  1969 b21f992a
> > 
> > doc/by-app/org.kde.okular/b21f992a:
> > total 0
> > 
> > doc/f83e274f:
> > total 0
> > 
> > Okular was installed as a test a while ago, but has since been
> > removed.
> > I guess my questions are (a) do I need these folders, and (b) how
> > did
> > the permissions get so borked?
> > 
> 
> What you describe here is the directory structure of the document
> store, which gets mounted as a fused filesystem in XDG_RUNTIME_DIR.
> No idea how it would end up in ~/.cache for you,
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So it's OK to purge?