gitインストール

Mac 
sudo port search git
cogito                         devel/cogito   0.18.2       Git core and cogito tools to provide a fully-distributed SCM
git-core                       devel/git-core 1.5.5.1      The stupid content tracker.
stgit                          devel/stgit    0.14.1       Push/pop utility on top of GIT
cgit                           www/cgit       0.7.1        A fast web interface for the git source code management system


ぜんぶ入れよう

sudo port install cogito git-core cgit stgit