This is a version control system which is implemented by golang. It supports some basic functions of git. ./database directory is used for storing the commit and files ./index used for accelerating and specifying what files to commit. ./diff for calculating the difference between the files. ./pack is used to compress text files ./remote is used to communicate with the remote repository.

different modes: REGULAR_MODE = "100644" EXECUTABLE_MODE = "100755" DIRECTORY_MODE = "40000"

the order of implementation. init,add,commit. status, checkout repository contains config database, almost everything

tree is commited index is staged