I know how to force Git to treat e.g. JPEG file as binary using gitattributes but what is actually the default list of binary files for Git? Or is there any? I found what seems to be the system-wide gitattributes file on my system and this is its contents:
*.doc diff=astextplain
*.DOC diff=astextplain
*.docx diff=astextplain
*.DOCX diff=astextplain
*.dot diff=astextplain
*.DOT diff=astextplain
*.pdf diff=astextplain
*.PDF diff=astextplain
*.rtf diff=astextplain
*.RTF diff=astextplain
Does that mean that images are by default not treated as binary files?
EDIT: there could also theoretically be some "guessing" algorithm involved but I haven't found any details on it.