这两天花了点时间最终在Window和Mac上把Beyong Compare和git整合好。当中遇到到非常多坑，如今把这些都分享出来。希望对大家有帮助。


首先如果你已经装好了Beyong Compare。


然后在~/bin/文件夹下新建一个git-diff-wrapper.sh


window系统的git bash的git-diff-wrapper.sh




#!/bin/sh
# diff is called by git with 7 parameters:
# path old-file old-hex old-mode new-file new-hex new-mode
"D:/tools/Beyond Compare 2/BC2.exe" "$2" "$5" | cat


mac系统的git-diff-wrapper.sh  



#/bin/sh
# diff is called by git with 7 parameters:
# path old-file old-hex old-mode new-file new-hex new-mode
bcompare "$2" "$5"|cat


注意：你在mac系统中装了beyong compare后须要在菜单条点击“Install Command Line Tools”把它增加到命令行。


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在用户文件夹~下改动.gitconfig文件 



[user]


  name = hudashi


  email = hudashi@gmail.com


[diff]


external = ~/bin/git-diff-wrapper.sh


最后就git diff就ok了。


注意：我们在Mac上执行git diff时，因为系统要保存历史文件到暂时文件夹再进行比較,而在保存到暂时文件夹又须要非常高的权限。所以我在git  diff前加了sudo才干执行成功。即sudo git diff.