it just a Shell to call gui diff for git

INSTALL:
1.open gitdiff , Change 'diffTool'to gui diff tool you love.
  Example:
  (Linux)
  diffTool=meld
  (MACOS)
  diffTool=diffmerge

2. just copy gitdiff and gitMyDiff to bin. you can use next script
   ./install
   
3. in your git , use 'gitdiff' instead 'git diff'

Enjoy~~~