Helping you practise a new programming language

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It is difficult to master a language by practising small examples from documentation page, systematic practice is needed.

We hope to provide a good project, Dit - the simple content tracker as Git does, to get you off the ground and master a new programming language as quickly as possible.

• From the love of Git and worship of Linus.
• "Do it together", hope more guys participate in.
• Learn more about Git.
• More practice when come to learning a new programming language.

Dit has already been implemented by below programming languages:

• Golang

Dit only implements minimal repository as below:

.dit/
├── HEAD
├── index
├── objects
└── refs
    └── heads
        └── master

3 directories, 3 files

Dit is a content-addressable filesystem. It has three objects: blob, tree and commit. Each object is named with a 40-character checksum hash and stored under objects folder. The subdirectory is named with the first 2 characters of the SHA-1, and the filename is the remaining 38 characters.

Stored content includes object type + size + \0 + actual content, Dit compresses the content with zlib.

Sha1 can be calculated like below:

# git
$ echo dit | git hash-object --stdin
8f2c96ad676d7423d2c319fffb78cfb87c78c3e2

# shasum
$ echo -e "blob 4\0dit" | shasum
8f2c96ad676d7423d2c319fffb78cfb87c78c3e2  -

# openssl sha1
$ echo -e "blob 4\0dit" | openssl sha1
(stdin)= 8f2c96ad676d7423d2c319fffb78cfb87c78c3e2

# go
fmt.Printf("%x\n", sha1.Sum([]byte("blob 4\x00dit\n")))

• blob

• tree

• commit

Dit is a mini Git, the basical dit must support the below commands:

Dit only has master branch.

• Git
• Pro Git

Everything in this repo is under MIT License unless otherwise specified.

MIT © zddhub