关于git简介的补充

[xgdyp]

我觉得git有一个很有趣的点：git到底代表什么
以下摘自git0.01版本readme

GIT - the stupid content tracker

"git" can mean anything, depending on your mood.

• random three-letter combination that is pronounceable, and not
  actually used by any common UNIX command. The fact that it is a
  mispronounciation of "get" may or may not be relevant.
• stupid. contemptible and despicable. simple. Take your pick from the
  dictionary of slang.
• "global information tracker": you're in a good mood, and it actually
  works for you. Angels sing, and a light suddenly fills the room.
• "goddamn idiotic truckload of sh*t": when it breaks

This is a stupid (but extremely fast) directory content manager. It
doesn't do a whole lot, but what it does do is track directory
contents efficiently.

There are two object abstractions: the "object database", and the
"current directory cache".