autodoc – A simple document generator

autodoc is a simple document generator. It parses docstrings for any function & generates markdown document.

πŸ‘‰ This is a very very lean & playground version of go/doc package.

❓ What is it?

autodoc parses the docstrings for all functions in a given source code & generates markdown representation for them.

Note We are following the Numpy DocString Format.

To understand, how to write function docstrings following the numpy docstring format – checkout this excellent guide

πŸš€ Demo

Clone the repo & run the main script.

go run main.go

It will loop through all the files in src directory & generate a markdown file for each source file & store it in the docs directory.

In the repo, I have added 2 source files. Executing the main script, creates 2 new files in docs directory.

β”œβ”€β”€ docs
β”‚Β Β  β”œβ”€β”€
β”‚Β Β  └──
└── src
    β”œβ”€β”€ fibonacci.go
    └── square_root.go

Checkout the generated docs

πŸ€” How?

The autodoc exports a DocGenerator method that takes in a filepath & generates a markdown of the same name in docs file. It does this by –

  1. Reads the source file
  2. Generates the Abstract Syntax Tree for the source code using the excellent go/parser package
  3. Traverses the tree to find function nodes. go/ast stores them as FuncDecl nodes. It relies on go/ast to inspect the tree
  4. Reads the docstring assosciated with it & the function name
  5. Formats it into a markdown representation
  6. Writes it to a file inside docs

The main script recursively loops over all the files in src directory & applies all the previous step to each file


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