PDFLatex does not find beamer template

Question

I have written one customized beamer template (it consists of multiple files). I pushed it on github and now I want to use it as a git submodule in another git project.

The beamer template works fine if the .tex file and all the .sty files are in the same directory, but if I use it in a submodule not, because the compiler (pdflatex) does not find the sty files. This is the tree of the directory:

In particular the beamercolorthemepadua.sty file includes the other ones with the following latex code:

\usepackage{mycolor}
\useinnertheme{padua}
\useoutertheme{padua}
\usecolortheme{padua}

The main.tex file includes the beamer template with the following latex instructions:

\mode<presentation>
{
  \usepackage{YAUBT/beamerthemepadua} 
} 

Now if I compile the main.tex file from the root directory of the project, that includes the beamertemplate in the subdirecotry the compiler (pdflatex and latexmk) does not succeed because:

That makes sense because the files are not in the same directory in which the compiler works.

How can I say to LaTeX that it should search in the subdirectories?

I tried also to modify the TEXINPUTS variables, but without success. Any hint would be appreciated.

Answer 1

If you use

TEXINPUTS=.:$PWD/YAUBT//:$TEXINPUTS

instead of

TEXINPUTS=.:$PWD/YAUBT:$TEXINPUTS

it will not only search the YAUBT directory, but also its sub-directories, e.g. img, and thus be able to find your images.