Does diff_contains allow distingusihing between adding and removing?

[anka-213]

I want to prevent certain patterns from being added to the code, but I do not want to prevent them from being removed. Can I do this using diff_contains?

I currently have

[git]
private-commits = 'diff_contains("bad_pattern")'

is there a way to make it only work if the bad pattern is added, not when it's removed?

[ilyagr]

Not as far as I know, but I think the feature would make sense. I opened #7595, feel free to add more of your ideas to it.