This PR fixes the debian_buildenv.sh script to properly handle the fonts-ubuntu package from Debian's non-free repository.

[blackhold]

Description

This PR fixes the debian_buildenv.sh script to properly handle the fonts-ubuntu package from Debian's non-free repository.

Changes

• Fixed redirection error (2>%1 → 2>/dev/null) that was creating a %1 file
• Fixed grep condition to properly detect non-free repository
• Fixed sed regex to correctly add non-free to sources.list
• Changed fonts-ubuntu-title to fonts-ubuntu from non-free repository
• Added user prompt to enable non-free repository if needed

Related Issues

Fixes #15816

[daschuer]

Thanks. I have added instructions to the original PR how you can re-use it.
If you want to avoid the git fiddling, you may also create a new PR from a feature branch on top of 2.5. This would work like this:

git checkout -b debian_free_fix umpstream/2.5

[daschuer]

I suggest to apply these command here:

# get latest updates form upstream 
git fetch upstream
# move locally to main branch  
git checkout main 
# hard reset to the upstream version discarding all edits
git reset upstream/main --hard
# move locally to 2.5 
git checkout 2.5 
# create a feature branch from 2.5 
git checkout -b debian_free_fix 
# restores the original commit  
git cherry-pick f6e5cd2a93b3c94af7f19a7ec6bb84c83379e5b6
# issue my comment form https://github.com/mixxxdj/mixxx/pull/15826
git commit -a 
git push
# than create a new PR

Hope that helps. Thank you.

[blackhold]

Done! Let's see if now it's fixed!

[blackhold]

closing, use #15895