this post was submitted on 14 Aug 2023
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So, in order to avoid typing "flatpak run", every time I need to run a flatpak program from the terminal, to have gui programs installed using nix appear in my applications menu(rofi, in this case), and to avoid typing the entire path to my .local/bin, I had added the following lines to my .profile:

set PATH so it includes user's private bin if it exists

if [ -d "$HOME/bin" ] ; then export PATH="$HOME/bin:$PATH" fi

set PATH so it includes user's private bin if it exists

if [ -d "$HOME/.local/bin" ] ; then export PATH="$HOME/.local/bin:$PATH" fi

for desktop entries for packages installed using Nix

export XDG_DATA_DIRS="/home/guest/.nix-profile/share:$XDG_DATA_DIRS"

set PATH so it includes user's private bin if it exists

if [ -d "/var/lib/flatpak/exports/bin" ] ; then export PATH="/var/lib/flatpak/exports/bin:$PATH" fi

if [ -d "~/.local/share/flatpak/exports/bin" ] ; then export PATH="~/.local/share/flatpak/exports/bin:$PATH" fi

However, for some weird reason, I cannot take advantage of the above lines unless I am in a tmux session or I explicitly type the following command:

source .profile

Any ideas on how to fix this?

#Debian #Debian11 #foss #floss #libre_software #applications #desktop #gui #nix #flatpak #flatpaks #gnu #linux #opensource #open_source #tmux #bash #profile #shell #terminal

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[–] [email protected] 10 points 10 months ago (1 children)

.profileis only sourced when the shell is a login shell. Most shells started by terminal emulators under a GUI are not login shells.

Depending on how you connect to a machine, you may or may not get a login shell. Through SSH or similar may well get you a login shell. Using the text-console (usually through Ctrl+Alt+F1 through F6 on modern distros) also yields a login shell.

Try putting things in your .bashrc instead. That one is sourced regardless of login shell or not.

If you're not using bash, substitute the relevant file. .zshrc and .config/fish are the main two.

[–] [email protected] 1 points 10 months ago

Thanks, that works with the flatpaks. However, it doesn't seem to work with nix packages. I mean rofi doesn't detect the .desktop files for packages installed using nix.

[–] [email protected] 5 points 10 months ago (1 children)

Do you have anything else your ~/.bashrc that is perhaps overwriting the PATH?

One thing you can do is just add echos to your .profile to see if it is getting sourced and what the state of PATH is as it gets loaded. That might help you trace what is happening.

[–] [email protected] 1 points 10 months ago

Thanks for the response. I will try to as you have advised. Adding those lines to .bashrc helped with flatpaks but not with nix.

[–] [email protected] 5 points 10 months ago (1 children)

I had a similar issue some time ago, not sure which distro it was. The solution was to rename the .profile to .bash_profile :)

[–] [email protected] 2 points 10 months ago (2 children)

Thanks for the response. But in my case, even that does not work as well.

[–] [email protected] 3 points 10 months ago (2 children)

Does your .bashrc actually source .bash_profile? Add [ ! -f "~/.bash_profile" ] || . "~/.bash_profile" (.bash_profile doesn't exist or source it) to the end if not.

[–] [email protected] 1 points 10 months ago

Since .bashrc is executed for all non-login shells, it shouldn't really source .profile, which is only meant for login shells, and might trigger expensive activity. (.profile might source .bashrc, but that`s fine.)

[–] [email protected] 1 points 10 months ago

Adding those lines to .bashrc helped with flatpaks but not with nix.

[–] [email protected] 2 points 10 months ago (1 children)

You've probably already checked it out but make sure you've got only one of .profile, .bash_profile, .bashprofile. bash will only execute one of them in case there's more than one (not sure which one off the top of my head.)

[–] [email protected] 2 points 10 months ago

I only have .profile. Actually adding those lines as to .bashrc as suggested by @[email protected] helped for the flatpak commands. But the issue with .desktop files for programs installed using nix still persists.

[–] [email protected] 4 points 10 months ago (1 children)

Did you check ownership and permissions for .profile?

[–] [email protected] 1 points 10 months ago

Changed it allow execution for the owner. Still no results. Tried with both .profile and .bash_profile.

[–] [email protected] 3 points 10 months ago (1 children)

It’s .bash_profile, not .profile

[–] [email protected] 1 points 10 months ago

Thanks for the response. But that does not work as well.

[–] [email protected] 2 points 10 months ago (1 children)

Are other lines in .profile being executed, or is the whole file ignored? Have you logged out and in again since adding these lines?

[–] [email protected] 1 points 10 months ago (1 children)

Thanks for the response. Adding those lines to .bashrc helped with flatpaks but not with nix.

[–] [email protected] 1 points 10 months ago

But those kinds of initialisations belong in .profile (or, if you're using a weird desktop environment, its own configuration file), particularly if you want .desktop files to work. (In .bashrc, PATH will grow longer in each subshell, which shouldn't cause problems but is wasteful.)

So, what desktop environment (GNOME, KDE, Cinnamon, etc.) are you using?

.profile is executed by login shells for the benefit of it and its subshells, and by DEs like Cinnamon for the benefit of .desktop launchers at login.

So, have you logged out and back in again since adding these lines to .profile?

And of course, the .profile has to be executed properly for its configuration to take effect, so it`s useful to know if the problem is with those specific lines, or the file as a whole.

Add:—

date >> ~/profile-execution-log-top.txt
echo $PATH >> ~/profile-execution-log-top.txt

to the top of .profile, and:—

date >> ~/profile-execution-log-end.txt
echo $PATH >> ~/profile-execution-log-end.txt

to the bottom of .profile (use alternative paths as you see fit) to monitor that activity. You can test this by sourcing .profile but the real test is logging out and in again. Look at the time when you do this so you can correlate each action with each timestamp in the log files. If .profile is executed to completion, you should have two files with matching timestamps but different PATHs. If you don't have a matching timestamp in the "end" log file, there's a problem mid-execution. If neither file is being updated, .profile isn't being executed at all.

[–] [email protected] 2 points 10 months ago (1 children)
[–] [email protected] 2 points 10 months ago

Thanks, I will check it out. Adding those lines to .bashrc helped with flatpaks but not with nix.