gitconfig

[alias]
    # list files which have changed since REVIEW_BASE
    # (REVIEW_BASE defaults to 'master' in my zshrc)
    files = !git diff --name-only $(git merge-base HEAD \"$REVIEW_BASE\")

    # Same as above, but with a diff stat instead of just names
    # (better for interactive use)
    stat = !git diff --stat $(git merge-base HEAD \"$REVIEW_BASE\")

    # Open all files changed since REVIEW_BASE in Vim tabs
    # Then, run fugitive's :Gdiff in each tab, and finally
    # tell vim-gitgutter to show +/- for changes since REVIEW_BASE
    review = !vim -p $(git files) +\"tabdo Gdiff $REVIEW_BASE\" +\"let g:gitgutter_diff_base = '$REVIEW_BASE'\"

    # Same as the above, except specify names of files as arguments,
    # instead of opening all files:
    # git reviewone foo.js bar.js
    reviewone = !vim -p +\"tabdo Gdiff $REVIEW_BASE\" +\"let g:gitgutter_diff_base = '$REVIEW_BASE'\"