在Elixir中安装依赖项

Question

Is there a way to install a dependency for an Elixir project directly through the command line using mix or mix hex ?

I am aware of the option for searching the hex registry via

$ mix hex.search httpoison

Package    Version  URL
httpoison  0.11.0   https://hex.pm/packages/httpoison

However, I am looking for something like

$ mix hex.install httpoison

which will modify my mix.exs file, adding the name and most recent version of the dependency to the deps function and the application name to the applications list and then run

$ mix deps.get

to pull and compile the dependency.

Answer 1

It sounds like you are looking for something similar to npm install --save . This feature does not exist in mix. You can install something the usual way by adding it to mix.exs and running mix deps.get as you mention.

The other way you may wish to install certain applications is via a mix archive allowing this mix task to be run globally. One example of this is phoenix.new for creating new phoenix applications which can be installed by running:

mix archive.install https://github.com/phoenixframework/phoenix/releases/download/v0.16.1/phoenix_new-0.16.1.ez