ExDoc

ExDoc is a tool to generate documentation for your Elixir projects. In case you are looking for documentation for Elixir itself, check out Elixir's website.

To use ExDoc, you need Elixir master.

Using ExDoc with Mix

To use ExDoc in your Mix projects, first add ExDoc as a dependency:

def deps do
  [{:ex_doc, github: "elixir-lang/ex_doc"}]
end

After adding ExDoc as a dependency, please run mix deps.get to install it.

ExDoc will automatically pull in information from your project, like the application and version. However, you may want to set :name, :source_url and :homepage_url to have a nicer output from ExDoc, for example:

def project do
  [app: :repo
   version: "0.1.0.dev",
   name: "REPO",
   source_url: "https://github.com/USER/REPO",
   homepage_url: "http://YOUR_PROJECT_HOMEPAGE"
   deps: deps]
end

Now you are ready to generate your project documentation with mix docs.

Changing the Markdown tool

By default, ExDoc uses Earmark to convert Markdown to HTML. If you prefer, you can also use pandoc or hoedown:

• Install pandoc - which is available in multiple package managers and provides installers for different operating systems. Pandoc must be installed just once and it will be used for all projects;

• Add http://github.com/devinus/markdown as a dependency to your project as: {:markdown, github: "devinus/markdown"}

Then add the entry

markdown_processor:  ExDoc.Markdown.Pandoc  (or ExDoc.MarkDown.Hoedown)

to your mix.exs.

To see all options available when generating docs, just run mix help docs.

Using ExDoc via command line

You can ExDoc via the command line as follows:

1. First clone and compile it:

    git clone https://github.com/elixir-lang/ex_doc.git
    cd ex_doc
    mix compile

2. Then you are ready to use it in your projects. First move into your project directory and ensure it is compiled:

    cd PATH_TO_YOUR_PROJECT
    mix compile

3. Next invoke the ex_doc executable from your project:

    PATH_TO_YOUR_EXDOC/bin/ex_doc "PROJECT_NAME" "PROJECT_VERSION" path/to/project/ebin -m "PROJECT_MODULE" -u "https://github.com/GITHUB_USER/GITHUB_REPO"

For example, here are some acceptable values:

PROJECT_NAME    => Dynamo
PROJECT_VERSION => 0.1
PROJECT_MODULE  => Dynamo (the main module provided by the library)
GITHUB_USER     => elixir-lang
GITHUB_REPO     => dynamo

License

ExDoc source code is released under Apache 2 License with snippets under MIT-LICENSE.

Check LICENSE file for more information.