---
name: setup-beam

description: >
  Set up a BEAM-based CI environment, supporting languages and tools such as Erlang/OTP, Elixir, Gleam, `rebar3`, and `hex`.

author: Erlang Ecosystem Foundation

branding:
  color: blue
  icon: code

inputs:
  github-token:
    description: >
      A GitHub token used to access the GitHub REST API for retrieving release and version information.
      While this action will never perform anything more than read operations against the GitHub REST API,
      we do not recommend providing a self-generated personal access token which may provide more access than is
      required of this action. This input instead is merely a convenience so that users of this action do not
      have to manually pass an automatically generated token via their environment settings within a workflow.
      [Learn more about automatically generated tokens](https://docs.github.com/en/actions/security-guides/automatic-token-authentication)
    default: ${{ github.token }}
    required: false

  otp-version:
    description: Version range or exact version of Erlang/OTP to use,
      or false when installing only Gleam without OTP
    required: false

  otp-architecture:
    description: 32 or 64, to specify the architecture of the OTP to install. Only applies to Windows.
    default: 64
    required: false

  elixir-version:
    description: Version range or exact version of Elixir to use
    required: false

  gleam-version:
    description: Version range or exact version of Gleam to use
    required: false

  install-hex:
    description: Whether to install Hex (with mix local.hex
      when installing Elixir)
    default: true
    required: false

  install-rebar:
    description: Whether to install Rebar (with mix local.rebar
      when installing Elixir)
    default: true
    required: false

  rebar3-version:
    description: Version range or exact version of rebar3 to use (or nightly)
    required: false

  version-type:
    description: strict means the versions are take as-are; loose means we try
      to guess versions based on semver rules
    default: loose
    required: false

  disable_problem_matchers:
    description: whether to have the problem matchers present in the results
      (or not)
    default: false
    required: false

  version-file:
    description: >-
      a versions file (e.g. `.tool-versions` as used by `asdf`, or `mise.toml`
      as used by `mise`), which defines inputs
    default: ''
    required: false

  hexpm-mirrors:
    description: mirror(s) for hex.pm, one per line
    default: |
        https://builds.hex.pm
    required: false

outputs:
  elixir-version:
    description: Exact version of Elixir that was installed

  otp-version:
    description: Exact version of Erlang/OTP that was installed

  gleam-version:
    description: Exact version of Gleam that was installed

  rebar3-version:
    description: Exact version of rebar3 that was installed

  setup-beam-version:
    description: The commit unique id of the execution action version

runs:
  using: node20
  main: dist/index.js