Git (in Go)

Repository

• Provides an abstract interface to deal with repository from a single source of truth.

Index

• We represent the index file as a IndexEntry with mode, hash and the path leaving the base.
• It performs the function of parsing the idx file, and writing or updating it.

Commands

• The package contains detail about how each command is executed and the respective methods.

Init

1. Calls the NewRepository function, to get a new Repository struct.
2. Then, initiates the Create call, to load the folders, files, refs, and HEAD.

Add

Commit

Status

Thoughts behind the process

Stage 1:

• Comparison of the WD and the current idx.
• We need a way to create the idx of the working directory.
• Our option is to call AddFromPath which itr and calls addFile.
• If we change the structure to add a boolean param, one dependency is WriteObject returns the hash.
• Altering that and see if we can create something reusable.

Stage 2:

• Now we need to compare the index with the commit.
• commit comes from branch and open the file.
• we can get the tree hash from it.
• our ParseTree func can parse the tree, we need a func to convert that to idx.
• to convert a tree to idx, we need a func in tree.go since dependency and abstraction.

Commit

Parse index ↓ Build in-memory tree hierarchy ↓ Serialize trees (binary) ↓ Write tree objects ↓ Create commit object