vimdiff command line options - wrap

I want vimdiff to wrap my text by default.

Is there a .vimdiffrc file?
Can I run vimdiff --wrap $file1 $file2 somehow to wrap lines?

While in vimdiff I can run the command
:set wrap

But I want this as the default and can not figure this out.

Solution: vimdiff command line options - wrap

1:
vimdiff -c "set wrap" -c "wincmd w" -c "set wrap" file1 file2