Profile-sync-daemon v6.50

Ask Fedora
1

Hello all
If someone has experience with psd, please I need help.
Currently I am running firefox and/or librewolf and psd moves the profiles into tmpfs for a better performance and to avoid read/write to SSD.

What I noticed is that the browsers continue to write under /home/$user/.cache/librewolf and /home/$user/.cache/mozilla/firefox

This my setup:

$ cat /home/liviu/.config/psd/.psd.conf
# Automatically generated file; DO NOT EDIT!
# The purpose is to snapshot the settings used when psd was activated.
# Any edits to the live config: /home/liviu/.config/psd/psd.conf
# will be applied the _next_ time psd is activated.
#
USE_OVERLAYFS="yes"
USE_SUSPSYNC=""
BROWSERS="firefox librewolf"
USE_BACKUPS="no"
BACKUP_LIMIT="0"

liviu@bobdenaut:~$ df -h|grep 1000
tmpfs              3.1G   54M  3.1G   2% /run/user/1000
overlaid           3.1G   54M  3.1G   2% /run/user/1000/psd/liviu-firefox-s3q6whm5.default-release
overlaid           3.1G   54M  3.1G   2% /run/user/1000/psd/liviu-librewolf-a2r6dd7l.default-default

liviu@bobdenaut:~$ psd p
Profile-sync-daemon v6.50

 systemd service: active
 resync-timer:    active
 sync on sleep:   disabled
 use overlayfs:   enabled

Psd will manage the following per /home/liviu/.config/psd/.psd.conf:

 browser/psname:  firefox/firefox
 owner/group id:  liviu/1000
 sync target:     /home/liviu/.mozilla/firefox/s3q6whm5.default-release
 tmpfs dir:       /run/user/1000/psd/liviu-firefox-s3q6whm5.default-release
 profile size:    143M
 overlayfs size:  26M
 backup limit:    0
 recovery dirs:   none

 browser/psname:  librewolf/librewolf
 owner/group id:  liviu/1000
 sync target:     /home/liviu/.librewolf/a2r6dd7l.default-default
 tmpfs dir:       /run/user/1000/psd/liviu-librewolf-a2r6dd7l.default-default
 profile size:    198M
 overlayfs size:  27M
 backup limit:    0
 recovery dirs:   none

Any idea how do I make them not writing on /home/$user/.cache ?
Thanks

2 
for DIR in mozilla/firefox librewolf
do
    rm -f -R ~/.cache/${DIR}
    ln -f -s -T ${XDG_RUNTIME_DIR} ~/.cache/${DIR}
done
3

Under ${XDG_RUNTIME_DIR} directory are a lot of files/directories.
How will affect creating a “ln”?

liviu@bobdenaut:~$ cd ${XDG_RUNTIME_DIR}
liviu@bobdenaut:/run/user/1000$ ls
at-spi      doc                        gvfs          libpod              pipewire-0-manager.lock  systemd
bus         gnome-session-leader-fifo  gvfsd         pipewire-0          psd                      wayland-0
containers  gnome-shell                ICEauthority  pipewire-0.lock     psd.pid                  wayland-0.lock
dconf       gnupg                      keyring       pipewire-0-manager  pulse
4

I dont think your proposal is correct, at all.
You are suggesting to create a link from my local .cache/firefox dir to /run/user/1000/ which is widely used by many other apps

5

The cache is stored in a sub-directory that matches the name of the browser’s profile and can be considered unique in the runtime scope.

6

no, it’s not ok because psd has already created a shortcut:

liviu@bobdenaut:~/.cache/mozilla/firefox$ ls -la
total 14
drwx------. 3 liviu liviu 3 Mar 13 08:19 .
drwx------. 3 liviu liviu 3 Mar 13 08:19 ..
drwx------. 6 liviu liviu 7 Mar 13 08:19 s3q6whm5.default-release

right here:

liviu@bobdenaut:~/.cache/mozilla/firefox$ cd ~/.mozilla/firefox/
liviu@bobdenaut:~/.mozilla/firefox$ ls -la
total 57
drwx------.  6 liviu liviu   9 Mar 13 10:36  .
drwxr-xr-x.  6 liviu liviu   6 Mar 12 02:51  ..
drwx------.  3 liviu liviu   5 Mar  9 18:15 'Crash Reports'
-rw-r--r--.  1 liviu liviu  62 Mar  9 19:54  installs.ini
drwx------.  2 liviu liviu   2 Mar  9 17:54 'Pending Pings'
-rw-r--r--.  1 liviu liviu 189 Mar  9 19:54  profiles.ini
lrwxrwxrwx.  1 liviu liviu  57 Mar 13 10:36  s3q6whm5.default-release -> /run/user/1000/psd/liviu-firefox-s3q6whm5.default-release
drwx------. 14 liviu liviu  55 Mar 13 08:19  s3q6whm5.default-release-back-ovfs
drwx------. 14 liviu liviu  55 Mar 13 08:19  s3q6whm5.default-release-backup

so, its either a psd bug or i’ve messed up the settings

7

The official documentation refers to the Arch wiki to store the cache in tmpfs:

Both /run and /tmp use tmpfs by default and discarded on reboot.

8

correct, and it does:

sync target:     /home/liviu/.mozilla/firefox/s3q6whm5.default-release
 tmpfs dir:       /run/user/1000/psd/liviu-firefox-s3q6whm5.default-release

my issue is with the browser still writing at /home/$USER/.cache/bla/bla

9

To be clear, PSD manages your browser’s profile, not the cache.
The cache is safe to discard, so it can be linked to tmpfs.
As an alternative, you can link it to the browser’s profile:

for DIR in mozilla librewolf
do
    rm -f -R ~/.cache/${DIR}
    ln -f -s -T ../.${DIR} ~/.cache/${DIR}
done
10

I just found a better way:

browser.cache.disk.parent_directory /run/user/1000/psd/librewolf/

you can set this by accessing about:config in the browser

or, create a file user.js with this content and save it inside of your firefox’s profile folder:

user_pref("browser.cache.disk.parent_directory", "/run/user/1000/psd/librewolf/");