linux - bash automatically executing a tool-specific configuration file on login

My project uses an internal tool on Linux, that uses a file called .spacerc for configuring some environmental variables.

The strange thing is, whenever I start a (non-login interactive) bash shell - whether via PuTTy, or via executing $SHELL, or via a python script executing pty.spawn($SHELL) - it reads in .spacerc and sets the environmental variables as specified in it. (And yes, $SHELL is /bin/bash.)

It appears that .spacerc is read before .bashrc is executed (at least the one in the local user directory).

I can't find any info on line that indicates why bash would automatically read in an arbitrary file called .spacerc.

Why might this be happening?

Thanks!

Answer

Mystery solved:
The tool owner added a script to /etc/profile.d directory (which is executed on every shell start), that reads in the tool-specific configuration file.