How do I view 'git diff' output with my preferred diff tool/ viewer?

Question

When I type git diff, I want to view the output with my visual diff tool of choice (SourceGear \"diffmerge\" on Windows). How do I configure git to do this?

Answer 1

this works for me on windows 7. No need for intermediary sh scripts

contents of .gitconfig:

    [diff]
      tool = kdiff3

    [difftool]
       prompt = false

    [difftool "kdiff3"]
      path = C:/Program Files (x86)/KDiff3/kdiff3.exe
      cmd = "$LOCAL" "$REMOTE"

Answer 2

you can use git difftool.

for example if you have meld, you can edit the branchs master and devel by:

git config --global diff.external meld
git difftool master..devel