updatedb to whitelist a branch of a blacklisted directory tree
Well PRUNEPATHS in updatedb blacklists directories. My situation is that I have a directory with many subdirectories:

    /A/a1
    /A/a2
    /A/a3
    /A/a4
    /A/a5
    /A/a6
    /A/a7
    /A/a8
    /A/a9
    ...
    /A/aN
    /A/whitelisted_directory

Note that the useless folders cannot be matched by a regex and are added/removed all the time.
Is there a way to tell updatedb to look in /A/whitelisted_directory  but not the rest in /A/?
Thank you in advance!
updatedb to whitelist a branch of a blacklisted directory tree
===

Well PRUNEPATHS in updatedb blacklists directories. My situation is that I have a directory with many subdirectories:

    /A/a1
    /A/a2
    /A/a3
    /A/a4
    /A/a5
    /A/a6
    /A/a7
    /A/a8
    /A/a9
    ...
    /A/aN
    /A/whitelisted_directory

Note that the useless folders cannot be matched by a regex and are added/removed all the time.
Is there a way to tell updatedb to look in /A/whitelisted_directory  but not the rest in /A/?
Thank you in advance!