Exclude files from hidden directories but not hidden files (under not hidden directories) from find results

Question

Given the following directories structure:

$ tree --noreport dir

dir
├── fileA
├── .hiddenfileA
├── .hiddendirA
|   ├── .hiddenfileB
│   ├── fileC
│   └── fileD
└── dirA
    ├── .hiddenfileC
    ├── fileE
    └── fileF

The requirement is to make a call to find so that files from hidden directories but not hidden files (under not hidden directories) are excluded from the result.

The expected return should be something similar to:

./.hiddenfileA
./dirA/.hiddenfileC
./dirA/fileE
./dirA/fileF
./fileA

Did some research and found here information that led me to create the following call to find

$ find . -type f -not -path '*/\.*' -print

But this solution has the drawback that skips hidden directories and files.

Answer 1

Prune hidden directories and limit the results to files:

find . -type d -name '.?*' -prune -o -type f -print

As suggested by jthill, you might prefer filtering out directories, which would result in showing files, links etc.:

find . -type d -name '.?*' -prune -o ! -type d -print

Answer 2

The command you have is very close to working.  Use

find . -type f ! -path '*/.*/*' -print

• The path pattern, */.*/*, looks for a /. (implying a segment name that begins with .) followed (eventually) by a / — so the segment name that begins with . cannot be the last one (the file name); i.e., it must be a directory name.
• -path uses filename expansion patterns; a.k.a. globs or wildcards.  So you don’t need to put \ before ..
• Don’t use -not if you want portability to non-GNU systems.  The use of ! to represent “not” is specified by POSIX, and works in every version of find (even BSD, Solaris, etc., and ancient systems).