Automation: update setup-beam version output to b8e9da7

Automation: update setup-beam version output to 6292fa4
Test over OTP 27 and rebar3 3.23 (#274 )
2026-07-23 15:16:08 +00:00 · 2024-05-31 15:29:11 +00:00 · 2024-05-25 19:08:57 +00:00 · 2024-05-25 20:08:17 +01:00 · 2024-05-21 18:21:21 +00:00 · 2024-05-21 19:20:56 +01:00
69 changed files with 9342 additions and 7590 deletions
@@ -1,21 +1,18 @@
 ---
 env:
  node: true
-  es2021: true
+  es2022: true
 extends:
-  - airbnb
+  - eslint:recommended
 parserOptions:
-  ecmaVersion: 12
+  ecmaVersion: 2022
 rules:
-  indent: ["warn", 2]
-  max-len: ["warn", 100]
-  no-console: 0
-  no-undef: "error"
-  no-unused-vars: ["error", {"varsIgnorePattern": "^_"}]
+  indent: [warn, 2, {SwitchCase: 1}]
+  max-len: [warn, 100]
  no-use-before-define: 0
  operator-linebreak: 0
-  require-jsdoc: 0
  semi: 0
+  implicit-arrow-linebreak: 0

 settings:
  react:
@@ -0,0 +1,35 @@
+---
+name: Bug report
+about: Report a bug to improve this project
+title: ''
+labels: 'bug'
+assignees: ''
+
+---
+
+#### The bug
+
+A clear and concise description of what the bug is.
+
+#### Software versions
+
+A list of software versions where the bug is apparent, as detailed as possible:
+
+* `setup-beam`: ...
+* other (where applicable): ...
+
+#### How to replicate
+
+An ordered list of steps to replicate the bug:
+
+1. run `...`
+2. search for `...` in the error output
+3. look at file `...`
+
+#### Expected behaviour
+
+What's expected to happen when you follow the steps listed above.
+
+#### Additional context
+
+Any other context about the bug.
@@ -0,0 +1,26 @@
+---
+name: Feature request
+about: Request a feature for this project
+title: ''
+labels: 'feature'
+assignees: ''
+
+---
+
+#### Is your feature request related to a problem?
+
+A clear and concise description of what the problem is, e.g. "I'm always frustrated
+when ..."
+
+#### Describe the feature you'd like
+
+A clear and concise description of what you want to happen after the new feature
+is implemented.
+
+#### Describe alternatives you've considered
+
+A clear and concise description of any alternative solutions or features you've considered.
+
+#### Additional context
+
+Any other context about the feature request.
@@ -0,0 +1,8 @@
+# Description
+
+A brief description of your changes.
+
+Closes #&lt;issue&gt;.
+
+- [ ] I have performed a self-review of my changes
+- [ ] I have read and understood the [contributing guidelines](/erlef/setup-beam/blob/main/CONTRIBUTING.md)
@@ -7,47 +7,71 @@ on:
      - main
  pull_request:
    branches:
-      - main
+      - "*"
+  workflow_dispatch: {}
+
+env:
+  GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}

 jobs:
+  version:
+    name: Version with commit unique id
+    runs-on: ubuntu-latest
+    if: github.ref == 'refs/heads/main'
+    steps:
+      - uses: actions/checkout@v4
+      - name: Version it!
+        run: |
+          # We expect a string such as const setupBeamVersion = 'undefined' in the code
+          SHA=$(git rev-parse --short HEAD)
+          sed -i'.bak' \
+              -e "s/const setupBeamVersion = '.*'/const setupBeamVersion = '${SHA}'/g" \
+              src/setup-beam.js
+          npm run build-dist
+          git config user.name "GitHub Actions"
+          git config user.email "actions@user.noreply.github.com"
+          git add src/setup-beam.js
+          git add dist/index.js
+          git commit -m "Automation: update setup-beam version output to ${SHA}"
+          git push origin main
+
  check_integrity:
    name: Expected local npm actions
    runs-on: ubuntu-latest
+    if: github.ref != 'refs/heads/main'
    steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-node@v1
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
        with:
-          node-version: '14'
-      - run: npm install -g npm
-      - run: npm install
-      - run: npm run build
-      - run: npm run format
-      - run: npm install -g markdownlint-cli
-      - run: npm run markdownlint
-      - run: npm run shellcheck
-      - run: npm run yamllint
-      - run: npm run jslint
+          node-version: '20'
+      - run: npm run build-dist
      - name: Check if build left artifacts
-        run: git diff --exit-code
+        run: git diff --exit-code --ignore-space-at-eol

  unit_tests_ubuntu:
    name: Unit tests (Ubuntu)
    runs-on: ubuntu-latest
    steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-node@v1
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
        with:
-          node-version: '14'
+          node-version: '20'
      - run: npm ci
      - run: npm test
+      - name: .tool-versions test
+        id: setup-beam
+        uses: ./
+        with:
+          version-file: test/.tool-versions
+          version-type: strict

  unit_tests_windows:
    name: Unit tests (Windows)
    runs-on: windows-latest
    steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-node@v1
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
        with:
-          node-version: '14'
+          node-version: '20'
      - run: npm install --production
      - run: npm test
@@ -0,0 +1,38 @@
+---
+name: hexpm-mirrors
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - "*"
+  workflow_dispatch: {}
+
+jobs:
+  test-failing-first-mirror:
+    name: Test option hexpm-mirrors with a dummy first mirror
+    runs-on: ${{matrix.os}}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: ['ubuntu-22.04', 'windows-2022']
+        otp-version: ['24']
+        elixir-version: ['v1.14', '']
+        install-rebar: [true, false]
+        install-hex: [true, false]
+    steps:
+      - uses: actions/checkout@v4
+      - name: Use erlef/setup-beam
+        id: setup-beam
+        uses: ./
+        with:
+          otp-version: ${{matrix.otp-version}}
+          elixir-version: ${{matrix.elixir-version}}
+          install-rebar: ${{matrix.install-rebar}}
+          install-hex: ${{matrix.install-hex}}
+          hexpm-mirrors: |
+            https://mirror.invalid
+            https://cdn.jsdelivr.net/hex
+            https://builds.hex.pm
@@ -7,7 +7,8 @@ on:
      - main
  pull_request:
    branches:
-      - main
+      - "*"
+  workflow_dispatch: {}

 jobs:
  integration_test:
@@ -21,12 +22,39 @@ jobs:
      fail-fast: false
      matrix:
        combo:
+          - otp-version: '27'
+            elixir-version: 'v1.17.0-rc.0'
+            rebar3-version: '3.23'
+            os: 'ubuntu-latest'
+          - otp-version: '26.0'
+            elixir-version: 'v1.14-otp-25'
+            os: 'ubuntu-latest'
+            version-type: 'strict'
+          - otp-version: '26.0'
+            elixir-version: '1.14.5'
+            os: 'ubuntu-latest'
+            version-type: 'strict'
+          - otp-version: '25.2'
+            elixir-version: '1.14.2'
+            os: 'ubuntu-latest'
+          - otp-version: '25.2'
+            elixir-version: '1.14.3'
+            os: 'ubuntu-latest'
+            version-type: 'strict'
+          - otp-version: '27'
+            os: 'ubuntu-24.04'
+            version-type: 'strict'
+          - otp-version: '26'
+            os: 'ubuntu-24.04'
+            version-type: 'strict'
          - otp-version: '25'
-            elixir-version: '1'
+            os: 'ubuntu-24.04'
+          - otp-version: '25'
+            elixir-version: '1.16'
            rebar3-version: '3'
            os: 'ubuntu-22.04'
          - otp-version: '24'
-            elixir-version: '1'
+            elixir-version: '1.16'
            rebar3-version: '3'
            os: 'ubuntu-22.04'
          - otp-version: '25.0'
@@ -45,36 +73,18 @@ jobs:
          - otp-version: '24'
            rebar3-version: 'nightly'
            os: 'ubuntu-latest'
-          - elixir-version: 'v1.0'
-            otp-version: '17'
-            os: 'ubuntu-18.04'
-          - elixir-version: 'v1.1'
-            otp-version: '18'
-            os: 'ubuntu-18.04'
-          - elixir-version: 'v1.2'
-            otp-version: '19'
-            rebar3-version: '3.10'
-            os: 'ubuntu-18.04'
          - elixir-version: 'v1.4'
            otp-version: '20'
-            rebar3-version: '3.6.0'
-            os: 'ubuntu-18.04'
+            rebar3-version: '3.15.0'
+            os: 'ubuntu-20.04'
          - elixir-version: 'v1.4'
            otp-version: '20'
            rebar3-version: '3.11'
            os: 'ubuntu-20.04'
-          - elixir-version: 'v1.6'
-            otp-version: '21'
-            rebar3-version: '3.12'
-            os: 'ubuntu-18.04'
          - elixir-version: 'v1.6'
            otp-version: '21'
            rebar3-version: '3.12'
            os: 'ubuntu-20.04'
-          - elixir-version: 'v1.7'
-            otp-version: '22'
-            rebar3-version: '3.13'
-            os: 'ubuntu-18.04'
          - elixir-version: 'v1.7'
            otp-version: '22'
            rebar3-version: '3.13'
@@ -82,23 +92,15 @@ jobs:
          - elixir-version: 'v1.10'
            otp-version: '23'
            rebar3-version: '3.14'
-            os: 'ubuntu-18.04'
+            os: 'ubuntu-20.04'
          - elixir-version: 'v1.13.4'
            otp-version: '25.0.2'
            rebar3-version: '3.19'
-            os: 'ubuntu-18.04'
-          - elixir-version: 'v1.10'
-            otp-version: '23'
-            rebar3-version: '3.14'
            os: 'ubuntu-20.04'
          - elixir-version: 'v1.12'
            otp-version: '24'
            rebar3-version: '3.15'
            os: 'ubuntu-20.04'
-          - elixir-version: 'v1.13.4'
-            otp-version: '25.0.2'
-            rebar3-version: '3.19'
-            os: 'ubuntu-20.04'
          - elixir-version: 'v1.11.0'
            otp-version: '22.3.4.2'
            os: 'ubuntu-20.04'
@@ -107,32 +109,37 @@ jobs:
            otp-version: '22.3.4.1'
            os: 'ubuntu-20.04'
            version-type: 'strict'
-          - elixir-version: '1.10.3'
-            otp-version: '22.3.4.1'
-            os: 'ubuntu-20.04'
-          - elixir-version: 'master'
+          - elixir-version: 'main'
            otp-version: '23.1'
-            os:  'ubuntu-20.04'
-          - elixir-version: 'master'
-            otp-version: '25'
-            os:  'ubuntu-20.04'
+            os: 'ubuntu-20.04'
+            version-type: 'strict'
+          - elixir-version: 'main'
+            otp-version: '25'
+            os: 'ubuntu-20.04'
            version-type: 'strict'
-          - gleam-version: 'nightly'
-            otp-version: '24'
          - gleam-version: '0.23'
            otp-version: '24'
            os: 'ubuntu-latest'
+            disable_problem_matchers: true
          - gleam-version: '0.23.0-rc1'
            otp-version: '24'
            os: 'ubuntu-latest'
+            disable_problem_matchers: true
          - gleam-version: '0.23.0-rc1'
            otp-version: false
            os: 'ubuntu-latest'
-          - gleam-version: '0.22.0' # Version with Gleam's old archive naming convention
+            disable_problem_matchers: true
+          - gleam-version: '0.22.0'  # Version with Gleam's old archive naming convention
            otp-version: '24'
            os: 'ubuntu-latest'
+            disable_problem_matchers: true
+          - elixir-version: 'v1.13'
+            otp-version: '24'
+            escript_packages: 'hex protobuf'
+            escript_script: 'protoc-gen-elixir --version'
+            os: 'ubuntu-latest'
    steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
      - name: Use erlef/setup-beam
        id: setup-beam
        uses: ./
@@ -162,25 +169,31 @@ jobs:
        if: ${{matrix.combo.elixir-version}}
      - name: Run Elixir/Mix project tests
        run: |
-          cd test-projects/elixir_mix
+          cd test/projects/elixir_mix
          mix deps.get
          mix test
        if: ${{matrix.combo.elixir-version}}
      - name: Run Erlang/rebar3 project tests
        run: |
-          cd test-projects/erlang_rebar3
+          cd test/projects/erlang_rebar3
          rebar3 ct
        if: ${{matrix.combo.rebar3-version}}
-      - name: Type check Gleam project (without installing Erlang/OTP)
+      - name: Format Gleam project (without installing Erlang/OTP)
        run: |
-          cd test-projects/gleam_gleam
-          gleam check
+          cd test/projects/gleam_gleam
+          gleam format
        if: ${{ matrix.combo.gleam-version && !matrix.combo.otp-version }}
      - name: Run Gleam project tests (without `rebar3`)
        run: |
-          cd test-projects/gleam_gleam
+          cd test/projects/gleam_gleam
          gleam test
        if: ${{ matrix.combo.gleam-version && matrix.combo.otp-version && !matrix.combo.rebar3-version }}
+      - name: Run escript
+        run: |
+          mix escript.install --force ${{matrix.combo.escript_packages}}
+          ${{matrix.combo.escript_script}}
+        if: ${{matrix.combo.escript_packages && matrix.combo.escript_script}}
+
  environment_variables:
    name: Environment variables
    runs-on: ${{matrix.combo.os}}
@@ -194,7 +207,7 @@ jobs:
            rebar3-version: 'nightly'
            os: 'ubuntu-latest'
    steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
      - name: Use erlef/setup-beam
        id: setup-beam
        uses: ./
@@ -204,9 +217,9 @@ jobs:
          gleam-version: ${{matrix.combo.gleam-version}}
          rebar3-version: ${{matrix.combo.rebar3-version}}
      - run: env
-      - name: List environment variables
+      - name: Check environment variables
        run: |
-          echo "${{env.INSTALL_DIR_FOR_ELIXIR}}"
-          echo "${{env.INSTALL_DIR_FOR_GLEAM}}"
-          echo "${{env.INSTALL_DIR_FOR_OTP}}"
-          echo "${{env.INSTALL_DIR_FOR_REBAR3}}"
+          ${INSTALL_DIR_FOR_ELIXIR}/bin/elixir -v
+          ${INSTALL_DIR_FOR_GLEAM}/bin/gleam --version
+          ${INSTALL_DIR_FOR_OTP}/bin/erl -version
+          ${INSTALL_DIR_FOR_REBAR3}/bin/rebar3 version
@@ -1,5 +1,5 @@
 ---
-name: update_3rd_party_licenses
+name: Update 3rd party licenses (automation)

 on:
  schedule:
@@ -11,11 +11,8 @@ jobs:
    name: Update 3rd party licenses
    runs-on: ubuntu-latest
    steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-node@v1
-        with:
-          node-version: '14'
+      - uses: actions/checkout@v4
      - run:
          ./.github/workflows/update_3rd_party_licenses.sh
        env:
-          GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
@@ -7,7 +7,8 @@ on:
      - main
  pull_request:
    branches:
-      - main
+      - "*"
+  workflow_dispatch: {}

 jobs:
  integration_test:
@@ -21,6 +22,22 @@ jobs:
      fail-fast: false
      matrix:
        combo:
+          - otp-version: '27'
+            elixir-version: 'v1.17.0-rc.0'
+            rebar3-version: '3.23'
+            os: 'windows-latest'
+          - otp-version: '26.0'
+            elixir-version: 'main'
+            os: 'windows-latest'
+            version-type: 'strict'
+          - otp-version: '26.0'
+            elixir-version: 'v1.14-otp-25'
+            os: 'windows-latest'
+            version-type: 'strict'
+          - otp-version: '26.0'
+            elixir-version: '1.14.5'
+            os: 'windows-latest'
+            version-type: 'strict'
          - otp-version: '25'
            rebar3-version: 'nightly'
            os: 'windows-latest'
@@ -37,16 +54,23 @@ jobs:
            otp-version: '23'
            rebar3-version: '3.14'
            os: 'windows-latest'
-          - elixir-version: 'v1.11'
+          - elixir-version: 'v1.13'
            otp-version: '24'
            rebar3-version: '3.15'
            os: 'windows-latest'
+          - gleam-version: '0.19.0-rc3'
+            otp-version: '24'
+            os: 'windows-latest'
          - gleam-version: '0.23.0-rc1'
            otp-version: '24'
-            rebar3-version: '3.16'
+            os: 'windows-latest'
+          - elixir-version: 'v1.13'
+            otp-version: '24'
+            escript_packages: 'hex protobuf'
+            escript_script: 'protoc-gen-elixir --version'
            os: 'windows-latest'
    steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
      - name: Use erlef/setup-beam
        id: setup-beam
        uses: ./
@@ -55,6 +79,7 @@ jobs:
          elixir-version: ${{matrix.combo.elixir-version}}
          gleam-version: ${{matrix.combo.gleam-version}}
          rebar3-version: ${{matrix.combo.rebar3-version}}
+          version-type: ${{matrix.combo.version-type}}
      - name: Erlang/OTP version (action)
        run: echo "Erlang/OTP ${{steps.setup-beam.outputs.otp-version}}"
      - name: Elixir version (action)
@@ -65,6 +90,17 @@ jobs:
        if: ${{matrix.combo.gleam-version}}
      - name: rebar3 version (action)
        run: echo "rebar3 ${{steps.setup-beam.outputs.rebar3-version}}"
+      - name: Run rebar3 and rebar3.cmd
+        run: |
+          # Should not fail
+          rebar3 version
+          rebar3.cmd version
+        if: ${{matrix.combo.rebar3-version}}
+      - name: rebar3 from Rust
+        run: |
+          cd test/projects/rust_rebar3_cmd
+          cargo test -- --nocapture
+        if: ${{matrix.combo.rebar3-version}}
      - name: mix version and help (CLI)
        run: |
          mix -v
@@ -73,15 +109,21 @@ jobs:
        if: ${{matrix.combo.elixir-version}}
      - name: Run Elixir/Mix project tests
        run: |
-          cd test-projects/elixir_mix
+          cd test/projects/elixir_mix
          mix deps.get
          mix test
        if: ${{matrix.combo.elixir-version}}
      - name: Run Erlang/rebar3 project tests
        run: |
-          cd test-projects/erlang_rebar3
+          cd test/projects/erlang_rebar3
          rebar3 ct
        if: ${{matrix.combo.rebar3-version}}
+      - name: Run escript
+        run: |
+          mix escript.install --force ${{matrix.combo.escript_packages}}
+          ${{matrix.combo.escript_script}}
+        if: ${{matrix.combo.escript_packages && matrix.combo.escript_script}}
+
  environment_variables:
    name: Environment variables
    runs-on: ${{matrix.combo.os}}
@@ -95,7 +137,7 @@ jobs:
            rebar3-version: 'nightly'
            os: 'windows-latest'
    steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
      - name: Use erlef/setup-beam
        id: setup-beam
        uses: ./
@@ -105,9 +147,10 @@ jobs:
          gleam-version: ${{matrix.combo.gleam-version}}
          rebar3-version: ${{matrix.combo.rebar3-version}}
      - run: env
-      - name: List environment variables
+      - name: Check environment variables
        run: |
-          echo "${{env.INSTALL_DIR_FOR_ELIXIR}}"
-          echo "${{env.INSTALL_DIR_FOR_GLEAM}}"
-          echo "${{env.INSTALL_DIR_FOR_OTP}}"
-          echo "${{env.INSTALL_DIR_FOR_REBAR3}}"
+          & "$Env:INSTALL_DIR_FOR_ELIXIR/bin/elixir" "-v"
+          & "$Env:INSTALL_DIR_FOR_GLEAM/bin/gleam.exe" "--version"
+          & "$Env:INSTALL_DIR_FOR_OTP/bin/erl.exe" "+V"
+          & "$Env:INSTALL_DIR_FOR_REBAR3/bin/rebar3.cmd" "version"
+          & "$Env:INSTALL_DIR_FOR_REBAR3/bin/rebar3.ps1" "version"
@@ -1,2 +1,2 @@
 node_modules/**
-dist/.github/workflows
+test/.tool-versions
@@ -27,6 +27,13 @@ Here are a few things you can do that will increase the likelihood of your pull
 - Write a [good commit message](http://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html).
 - Execute `npm run build-dist` and fix any issues arising from that

+## Running tests
+
+When running tests locally, a valid classic GitHub token with the `repo` scope is required for tests to pass.
+
+- Export the token in the current shell: `export GITHUB_TOKEN=<contents>`
+- Run tests `npm test`
+
 ## Resources

 - [How to Contribute to Open Source](https://opensource.guide/how-to-contribute/)
@@ -1,6 +1,6 @@
 # Elixir Problem Matchers

-Elixir Problem Matchers in [elixir-matchers.json](.github/elixir-matchers.json)
+Elixir Problem Matchers in [elixir-matchers.json](matchers/elixir-matchers.json)
 are adapted from [here](https://github.com/fr1zle/vscode-elixir/blob/45eddb589acd7ac98e0c7305d1c2b24668ca709a/package.json#L70-L118),
 available under the [MIT license](https://github.com/fr1zle/vscode-elixir/blob/45eddb589acd7ac98e0c7305d1c2b24668ca709a/LICENSE.md):

@@ -1,12 +1,12 @@
 <!-- markdownlint-disable MD013 -->
 # setup-beam [![GitHub Actions][action-img]][action] [![GitHub Actions][ubuntu-img]][ubuntu] [![GitHub Actions][windows-img]][windows]

-[action]: https://github.com/erlef/setup-beam
-[action-img]: https://github.com/erlef/setup-beam/workflows/action/badge.svg
-[ubuntu]: https://github.com/erlef/setup-beam
-[ubuntu-img]: https://github.com/erlef/setup-beam/workflows/ubuntu/badge.svg
-[windows]: https://github.com/erlef/setup-beam
-[windows-img]: https://github.com/erlef/setup-beam/workflows/windows/badge.svg
+[action]: https://github.com/erlef/setup-beam/actions/workflows/action.yml
+[action-img]: https://github.com/erlef/setup-beam/actions/workflows/action.yml/badge.svg
+[ubuntu]: https://github.com/erlef/setup-beam/actions/workflows/ubuntu.yml
+[ubuntu-img]: https://github.com/erlef/setup-beam/actions/workflows/ubuntu.yml/badge.svg
+[windows]: https://github.com/erlef/setup-beam/actions/workflows/windows.yml
+[windows-img]: https://github.com/erlef/setup-beam/actions/workflows/windows.yml/badge.svg

 This action sets up an Erlang/OTP environment for use in a GitHub Actions
 workflow by:
@@ -16,9 +16,11 @@ workflow by:
 - optionally, installing [Gleam](https://gleam.run/)
 - optionally, installing [`rebar3`](https://www.rebar3.org/)
 - optionally, installing [`hex`](https://hex.pm/)
+- optionally, opting for strict or loose version matching
 - optionally, having
  [problem matchers](https://github.com/actions/toolkit/blob/main/docs/problem-matchers.md) show
  warnings and errors on pull requests
+- optionally, using a version file (as explained in "Version file", below), to identify versions

 **Note**: currently, this action only supports Actions' `ubuntu-` and `windows-` runtimes.

@@ -47,13 +49,14 @@ opt-in, so `1.11.x` will not match a pre-release.
 This list presents the known working version combos between the target operating system
 and Erlang/OTP.

-| Operating system | Erlang/OTP | Status
-|-                 |-           |-
-| ubuntu-18.04     | 17 - 25    | ✅
-| ubuntu-20.04     | 20 - 25    | ✅
-| ubuntu-22.04     | 24.2 - 25  | ✅
-| windows-2019     | 21* - 25   | ✅
-| windows-2022     | 21* - 25   | ✅
+| Operating system | Erlang/OTP  | Status
+|-                 |-            |-
+| ubuntu-18.04     | 17.0 - 25.3 | ✅
+| ubuntu-20.04     | 20.0 - 27   | ✅
+| ubuntu-22.04     | 24.2 - 27   | ✅
+| ubuntu-24.04     | 24.3 - 27   | ✅
+| windows-2019     | 21* - 25    | ✅
+| windows-2022     | 21* - 27    | ✅

 **Note** *: prior to 23, Windows builds are only available for minor versions, e.g. 21.0, 21.3, 22.0, etc.

@@ -67,6 +70,7 @@ uses that to download assets:
 | ubuntu18 | ubuntu-18.04
 | ubuntu20 | ubuntu-20.04
 | ubuntu22 | ubuntu-22.04
+| ubuntu24 | ubuntu-24.04
 | win19    | windows-2019
 | win22    | windows-2022

@@ -81,11 +85,51 @@ jobs:
    env:
      ImageOS: ubuntu20 # equivalent to runs-on ubuntu-20.04
    steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
      - uses: erlef/setup-beam@v1
        ...
 ```

+### Outputs
+
+The action provides the following outputs:
+
+| Output             | Content
+|-                   |-
+| otp-version        | The Erlang version, e.g. `OTP-26.0`
+| elixir-version     | The Elixir version, e.g. `v1.14-otp-26`
+| gleam-version      | The Gleam version, e.g. `v0.23.0`
+| rebar3-version     | The `rebar3` version, e.g. `3.18.0`
+| setup-beam-version | The commit unique id of the executed action version, e.g. `a34c98f`
+
+accessible as `${{steps.<setup-beam-step-id>.outputs.<Output>}}`,
+e.g. `${{steps.setup-beam.outputs.erlang-version}}`
+
+### Version file
+
+A version file is specified via input `version-file` (e.g.`.tool-versions`). This
+allows not having to use YML input for versions, though the action does check (and
+will exit with error) if both inputs are set.
+
+**Note**: if you're using a version file, option `version-type` is checked to be `strict`,
+and will make the action exit with error otherwise.
+
+The following version file formats are supported:
+
+- `.tool-versions`, as specified by [asdf: Configuration](https://asdf-vm.com/manage/configuration.html)
+
+Supported version elements are the same as the ones defined for the YML portion of the action,
+with the following correspondence.
+
+#### `.tool-versions` format
+
+| YML              | `.tool-versions` |
+|-                 |- |
+| `otp-version`    | `erlang` |
+| `elixir-version` | `elixir` |
+| `gleam-version`  | `gleam` |
+| `rebar3-version` | `rebar` |
+
 ### Example (Erlang/OTP + Elixir, on Ubuntu)

 ```yaml
@@ -94,14 +138,14 @@ on: push

 jobs:
  test:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
    name: OTP ${{matrix.otp}} / Elixir ${{matrix.elixir}}
    strategy:
      matrix:
        otp: ['20.3', '21.3', '22.2']
        elixir: ['1.8.2', '1.9.4']
    steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
      - uses: erlef/setup-beam@v1
        with:
          otp-version: ${{matrix.otp}}
@@ -118,14 +162,14 @@ on: push

 jobs:
  test:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
    name: Erlang/OTP ${{matrix.otp}} / rebar3 ${{matrix.rebar3}}
    strategy:
      matrix:
        otp: ['20.3', '21.3', '22.2']
        rebar3: ['3.14.1', '3.14.3']
    steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
      - uses: erlef/setup-beam@v1
        with:
          otp-version: ${{matrix.otp}}
@@ -143,7 +187,7 @@ jobs:
  test:
    runs-on: windows-2022
    steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
      - uses: erlef/setup-beam@v1
        with:
          otp-version: '24'
@@ -161,7 +205,7 @@ jobs:
  test:
    runs-on: ubuntu-latest
    steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
      - uses: erlef/setup-beam@v1
        with:
          otp-version: '24'
@@ -179,7 +223,7 @@ jobs:
  test:
    runs-on: ubuntu-latest
    steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
      - uses: erlef/setup-beam@v1
        with:
          otp-version: false
@@ -189,6 +233,47 @@ jobs:

 **Note**: the `otp-version: false` input is only applicable when installing Gleam.

+## Alternative hex.pm mirrors
+
+It is possible to use alternative hex.pm mirror(s), in their declared order, with
+option `hexpm-mirrors`. By default, the action will use `builds.hex.pm`.
+To use other alternative mirrors, add one per line, as shown below.
+
+```yaml
+# create this in .github/workflows/ci.yml
+on: push
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: erlef/setup-beam@v1
+        with:
+          otp-version: '26'
+          # Use `cdn.jsdelivr.net/hex` as an alternative to `builds.hex.pm`
+          hexpm-mirrors: https://cdn.jsdelivr.net/hex
+```
+
+Alternatively, you may try `cdn.jsdelivr.net/hex` if `builds.hex.pm` fails:
+
+```yaml
+# create this in .github/workflows/ci.yml
+on: push
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: erlef/setup-beam@v1
+        with:
+          otp-version: '26'
+          hexpm-mirrors: |
+            https://builds.hex.pm
+            https://cdn.jsdelivr.net/hex
+```
+
 ## Environment variables

 Base installation folders (useful for e.g. fetching headers for NIFs) are available in the following
@@ -199,6 +284,9 @@ environment variables:
 - `INSTALL_DIR_FOR_GLEAM`: base folder for Gleam
 - `INSTALL_DIR_FOR_REBAR3`: base folder for `rebar3`

+In each of these you'll find folder `bin` where the appropriate binaries, platform-dependant,
+are found (i.e. `erl`, `erl.exe`, `rebar3`, `rebar3.exe`, ...).
+
 ## Elixir Problem Matchers

 The Elixir Problem Matchers in this repository are adapted from
@@ -0,0 +1,34 @@
+# Security policy
+
+Thanks for helping make `setup-beam` safer for everyone.
+
+Find below updated information on our security policy.
+
+## Security
+
+We take the security of this software seriously.
+
+We don't implement a bug bounty program or bounty rewards, but will work with
+you to ensure that your findings get the appropriate handling.
+
+## Reporting Security Issues
+
+If you believe you have found a security vulnerability in this repository,
+please report it to <bryan.paxton@erlef.org>.
+
+Please do not report security vulnerabilities through public channels, like
+GitHub issues, discussions, or pull requests.
+
+Please include as much of the information listed below as you can to help us
+better understand and resolve the issue:
+
+- the type of issue (e.g., buffer overflow, SQL injection, or cross-site
+  scripting)
+- full paths of source file(s) related to the manifestation of the issue
+- the location of the affected source code (tag/branch/commit or direct URL)
+- any special configuration required to reproduce the issue
+- step-by-step instructions to reproduce the issue
+- proof-of-concept or exploit code (if possible)
+- impact of the issue, including how an attacker might exploit the issue
+
+This information will help us triage your report more quickly.
@@ -1,100 +0,0 @@
-const assert = require('assert')
-const { problemMatcher } = require('../.github/elixir-matchers.json')
-
-async function all() {
-  await testElixirMixCompileError()
-  await testElixirMixCompileWarning()
-  await testElixirMixTestFailure()
-  await testElixirCredoOutputDefault()
-  await testElixirDialyzerOutputDefault()
-}
-
-async function testElixirMixCompileError() {
-  const [matcher] = problemMatcher.find(
-    ({ owner }) => owner === 'elixir-mixCompileError',
-  ).pattern
-
-  const output = '** (CompileError) lib/test.ex:16: undefined function err/0'
-  const [message, , file, line] = output.match(matcher.regexp)
-  assert.equal(file, 'lib/test.ex')
-  assert.equal(line, '16')
-  assert.equal(message, output)
-}
-
-async function testElixirMixCompileWarning() {
-  const [messagePattern, filePattern] = problemMatcher.find(
-    ({ owner }) => owner === 'elixir-mixCompileWarning',
-  ).pattern
-
-  const firstOutput =
-    'warning: variable "err" does not exist and is being expanded to "err()"'
-  const secondOutput = '  lib/test.ex:16: Test.hello/0'
-
-  const [, message] = firstOutput.match(messagePattern.regexp)
-  assert.equal(
-    message,
-    'variable "err" does not exist and is being expanded to "err()"',
-  )
-
-  const [, file, line] = secondOutput.match(filePattern.regexp)
-  assert.equal(file, 'lib/test.ex')
-  assert.equal(line, '16')
-}
-
-async function testElixirMixTestFailure() {
-  const [messagePattern, filePattern] = problemMatcher.find(
-    ({ owner }) => owner === 'elixir-mixTestFailure',
-  ).pattern
-
-  const firstOutput = '1) test throws (TestTest)'
-  const secondOutput = '  test/test_test.exs:9'
-
-  const [, message] = firstOutput.match(messagePattern.regexp)
-  assert.equal(message, 'test throws (TestTest)')
-
-  const [, file, line] = secondOutput.match(filePattern.regexp)
-  assert.equal(file, 'test/test_test.exs')
-  assert.equal(line, '9')
-}
-
-async function testElixirCredoOutputDefault() {
-  const [messagePattern, filePattern] = problemMatcher.find(
-    ({ owner }) => owner === 'elixir-credoOutputDefault',
-  ).pattern
-
-  const firstOutput = '┃ [F] → Function is too complex (CC is 29, max is 9).'
-  const secondOutput = '┃       lib/test.ex:15:7 #(Test.hello)'
-
-  const [, message] = firstOutput.match(messagePattern.regexp)
-  assert.equal(message, 'Function is too complex (CC is 29, max is 9).')
-
-  const [, file, line, column] = secondOutput.match(filePattern.regexp)
-  assert.equal(file, 'lib/test.ex')
-  assert.equal(line, '15')
-  assert.equal(column, '7')
-}
-
-async function testElixirDialyzerOutputDefault() {
-  const [messagePattern, filePattern] = problemMatcher.find(
-    ({ owner }) => owner === 'elixir-dialyzerOutputDefault',
-  ).pattern
-
-  const firstOutput = 'lib/test.ex:15:invalid_contract'
-  const secondOutput =
-    'The @spec for the function does not match the success typing of the function.'
-
-  const [, file, line, code] = firstOutput.match(messagePattern.regexp)
-  assert.equal(file, 'lib/test.ex')
-  assert.equal(line, '15')
-  assert.equal(code, 'invalid_contract')
-
-  const [, message] = secondOutput.match(filePattern.regexp)
-  assert.equal(message, secondOutput)
-}
-
-all()
-  .then(() => process.exit(0))
-  .catch((err) => {
-    console.error(err)
-    process.exit(1)
-  })
@@ -1,409 +0,0 @@
-simulateInput('otp-version', '23.2')
-simulateInput('elixir-version', '1.11')
-simulateInput('rebar3-version', '3.14')
-simulateInput('install-rebar', 'true')
-simulateInput('install-hex', 'true')
-
-const assert = require('assert')
-const setupBeam = require('../src/setup-beam')
-const installer = require('../src/installer')
-
-async function all() {
-  await testFailInstallOTP()
-  await testFailInstallElixir()
-  await testFailInstallGleam()
-  await testFailInstallRebar3()
-
-  await testOTPVersions()
-  await testElixirVersions()
-  await testGleamVersions()
-  await testRebar3Versions()
-
-  await testGetVersionFromSpec()
-}
-
-async function testFailInstallOTP() {
-  const otpOSVersion = 'ubuntu-08.04'
-  const otpVersion = 'OTP-23.2'
-  assert.rejects(
-    async () => {
-      await installer.installOTP(otpOSVersion, otpVersion)
-    },
-    (err) => {
-      assert.ok(err instanceof Error)
-      return true
-    },
-    `Installing Erlang/OTP ${otpVersion} over ${otpOSVersion} is supposed to fail`,
-  )
-}
-
-async function testFailInstallElixir() {
-  let exVersion
-
-  exVersion = '0.11'
-  assert.rejects(
-    async () => {
-      await installer.installElixir(exVersion)
-    },
-    (err) => {
-      assert.ok(err instanceof Error)
-      return true
-    },
-    `Installing Elixir ${exVersion} is supposed to fail`,
-  )
-
-  exVersion = 'v1.0.0-otp-17'
-  assert.rejects(
-    async () => {
-      await installer.installElixir(exVersion)
-    },
-    (err) => {
-      assert.ok(err instanceof Error)
-      return true
-    },
-    `Installing Elixir ${exVersion} is supposed to fail`,
-  )
-}
-
-async function testFailInstallGleam() {
-  const gleamVersion = '0.1.3'
-  assert.rejects(
-    async () => {
-      await installer.installGleam(gleamVersion)
-    },
-    (err) => {
-      assert.ok(err instanceof Error)
-      return true
-    },
-    `Installing Gleam ${gleamVersion} is supposed to fail`,
-  )
-}
-
-async function testFailInstallRebar3() {
-  const r3Version = '0.14.4'
-  assert.rejects(
-    async () => {
-      await installer.installRebar3(r3Version)
-    },
-    (err) => {
-      assert.ok(err instanceof Error)
-      return true
-    },
-    `Installing rebar3 ${r3Version} is supposed to fail`,
-  )
-}
-
-async function testOTPVersions() {
-  let got
-  let expected
-  let spec
-  let osVersion
-
-  if (process.platform === 'linux') {
-    spec = '19.3.x'
-    osVersion = 'ubuntu-16.04'
-    expected = 'OTP-19.3.6.13'
-    got = await setupBeam.getOTPVersion(spec, osVersion)
-    assert.deepStrictEqual(got, expected)
-
-    spec = '^19.3.6'
-    osVersion = 'ubuntu-16.04'
-    expected = 'OTP-19.3.6.13'
-    got = await setupBeam.getOTPVersion(spec, osVersion)
-    assert.deepStrictEqual(got, expected)
-
-    spec = '^19.3'
-    osVersion = 'ubuntu-18.04'
-    expected = 'OTP-19.3.6.13'
-    got = await setupBeam.getOTPVersion(spec, osVersion)
-    assert.deepStrictEqual(got, expected)
-
-    spec = '20'
-    osVersion = 'ubuntu-20.04'
-    expected = 'OTP-20.3.8.26'
-    got = await setupBeam.getOTPVersion(spec, osVersion)
-    assert.deepStrictEqual(got, expected)
-
-    spec = '20.x'
-    osVersion = 'ubuntu-20.04'
-    expected = 'OTP-20.3.8.26'
-    got = await setupBeam.getOTPVersion(spec, osVersion)
-    assert.deepStrictEqual(got, expected)
-
-    spec = '20.0'
-    osVersion = 'ubuntu-20.04'
-    expected = 'OTP-20.0.5'
-    got = await setupBeam.getOTPVersion(spec, osVersion)
-    assert.deepStrictEqual(got, expected)
-
-    spec = '20.0.x'
-    osVersion = 'ubuntu-20.04'
-    expected = 'OTP-20.0.5'
-    got = await setupBeam.getOTPVersion(spec, osVersion)
-    assert.deepStrictEqual(got, expected)
-  }
-
-  if (process.platform === 'win32') {
-    spec = '24.0.1'
-    osVersion = 'windows-latest'
-    expected = '24.0.1'
-    got = await setupBeam.getOTPVersion(spec, osVersion)
-    assert.deepStrictEqual(got, expected)
-
-    spec = '23.2.x'
-    osVersion = 'windows-2016'
-    expected = '23.2.7'
-    got = await setupBeam.getOTPVersion(spec, osVersion)
-    assert.deepStrictEqual(got, expected)
-
-    spec = '23.0'
-    osVersion = 'windows-2019'
-    expected = '23.0.4'
-    got = await setupBeam.getOTPVersion(spec, osVersion)
-    assert.deepStrictEqual(got, expected)
-  }
-}
-
-async function testElixirVersions() {
-  let got
-  let expected
-  let spec
-  let otpVersion
-
-  spec = '1.1.x'
-  otpVersion = 'OTP-17'
-  expected = 'v1.1.1-otp-17'
-  got = await setupBeam.getElixirVersion(spec, otpVersion)
-  assert.deepStrictEqual(got, expected)
-
-  spec = '1.10.4'
-  otpVersion = 'OTP-23'
-  expected = 'v1.10.4-otp-23'
-  got = await setupBeam.getElixirVersion(spec, otpVersion)
-  assert.deepStrictEqual(got, expected)
-
-  spec = '1.12.1'
-  otpVersion = 'OTP-24.0.2'
-  expected = 'v1.12.1-otp-24'
-  got = await setupBeam.getElixirVersion(spec, otpVersion)
-  assert.deepStrictEqual(got, expected)
-
-  simulateInput('version-type', 'strict')
-  spec = 'v1.11.0-rc.0'
-  otpVersion = 'OTP-23'
-  expected = 'v1.11.0-rc.0-otp-23'
-  got = await setupBeam.getElixirVersion(spec, otpVersion)
-  assert.deepStrictEqual(got, expected)
-  simulateInput('version-type', 'loose')
-
-  simulateInput('version-type', 'strict')
-  spec = 'v1.11.0'
-  otpVersion = '22.3.4.2'
-  expected = 'v1.11.0-otp-22'
-  got = await setupBeam.getElixirVersion(spec, otpVersion)
-  assert.deepStrictEqual(got, expected)
-  simulateInput('version-type', 'loose')
-
-  simulateInput('version-type', 'strict')
-  spec = 'master'
-  otpVersion = '23.1'
-  expected = 'master-otp-23'
-  got = await setupBeam.getElixirVersion(spec, otpVersion)
-  assert.deepStrictEqual(got, expected)
-  simulateInput('version-type', 'loose')
-}
-
-async function testGleamVersions() {
-  let got
-  let expected
-  let spec
-  let otpVersion
-
-  spec = 'v0.3.0'
-  otpVersion = 'OTP-23'
-  expected = 'v0.3.0'
-  got = await setupBeam.getGleamVersion(spec, otpVersion)
-  assert.deepStrictEqual(got, expected)
-
-  spec = '0.13.2'
-  otpVersion = 'OTP-24'
-  expected = 'v0.13.2'
-  got = await setupBeam.getGleamVersion(spec, otpVersion)
-  assert.deepStrictEqual(got, expected)
-
-  simulateInput('version-type', 'strict')
-  spec = 'v0.14.0-rc2'
-  otpVersion = 'OTP-22'
-  expected = 'v0.14.0-rc2'
-  got = await setupBeam.getGleamVersion(spec, otpVersion)
-  assert.deepStrictEqual(got, expected)
-  simulateInput('version-type', 'loose')
-}
-
-async function testRebar3Versions() {
-  let got
-  let expected
-  let spec
-
-  spec = '3.10.x'
-  expected = '3.10.0'
-  got = await setupBeam.getRebar3Version(spec)
-  assert.deepStrictEqual(got, expected)
-
-  spec = '3.11'
-  expected = '3.11.1'
-  got = await setupBeam.getRebar3Version(spec)
-  assert.deepStrictEqual(got, expected)
-
-  spec = '3.10'
-  expected = '3.10.0'
-  got = await setupBeam.getRebar3Version(spec)
-  assert.deepStrictEqual(got, expected)
-}
-
-async function testGetVersionFromSpec() {
-  let got
-  let expected
-  let spec
-  const versions = [
-    '3.2.30.5',
-    '3.2.3.5',
-    '1',
-    '2',
-    '3.2.3.4.1',
-    '1.0.9',
-    '3.2.3.40.1',
-    '1.0.2',
-    '2.0',
-    '2.10',
-    '2.9',
-    '1.0',
-    '3.2.3.4.2',
-    '1.1.0',
-    '3.4.5.4',
-    '3.4.5.3',
-    '3.4.5.4.1',
-    '24.0-rc3',
-    '24.0-rc2',
-    '24.0',
-    '23.3.4',
-    '23.3.3',
-    '22.3.4.9.1',
-    '22.3.4.12.1',
-    '22.3.4.10.1',
-    'master',
-    'v11.11.0-rc.0-otp-23',
-    '22.3.4.2',
-  ]
-
-  spec = '1'
-  expected = '1.1.0'
-  got = setupBeam.getVersionFromSpec(spec, versions)
-  assert.deepStrictEqual(got, expected)
-
-  spec = '1.0'
-  expected = '1.0.9'
-  got = setupBeam.getVersionFromSpec(spec, versions)
-  assert.deepStrictEqual(got, expected)
-
-  simulateInput('version-type', 'strict')
-  spec = '1'
-  expected = '1'
-  got = setupBeam.getVersionFromSpec(spec, versions)
-  assert.deepStrictEqual(got, expected)
-  simulateInput('version-type', 'loose')
-
-  simulateInput('version-type', 'strict')
-  spec = '1.0'
-  expected = '1.0'
-  got = setupBeam.getVersionFromSpec(spec, versions)
-  assert.deepStrictEqual(got, expected)
-  simulateInput('version-type', 'loose')
-
-  spec = '2'
-  expected = '2.10'
-  got = setupBeam.getVersionFromSpec(spec, versions)
-  assert.deepStrictEqual(got, expected)
-
-  spec = '3'
-  expected = '3.4.5.4.1'
-  got = setupBeam.getVersionFromSpec(spec, versions)
-  assert.deepStrictEqual(got, expected)
-
-  spec = '3.2'
-  expected = '3.2.30.5'
-  got = setupBeam.getVersionFromSpec(spec, versions)
-  assert.deepStrictEqual(got, expected)
-
-  spec = '>20'
-  expected = '24.0'
-  got = setupBeam.getVersionFromSpec(spec, versions)
-  assert.deepStrictEqual(got, expected)
-
-  spec = '24.0'
-  expected = '24.0'
-  got = setupBeam.getVersionFromSpec(spec, versions)
-  assert.deepStrictEqual(got, expected)
-
-  simulateInput('version-type', 'strict')
-  spec = '24.0-rc3'
-  expected = '24.0-rc3'
-  got = setupBeam.getVersionFromSpec(spec, versions)
-  assert.deepStrictEqual(got, expected)
-  simulateInput('version-type', 'loose')
-
-  spec = '24.0-rc2'
-  expected = '24.0-rc2'
-  got = setupBeam.getVersionFromSpec(spec, versions)
-  assert.deepStrictEqual(got, expected)
-
-  spec = '22.3'
-  expected = '22.3.4.12.1'
-  got = setupBeam.getVersionFromSpec(spec, versions)
-  assert.deepStrictEqual(got, expected)
-
-  spec = '23.3.3'
-  expected = '23.3.3'
-  got = setupBeam.getVersionFromSpec(spec, versions)
-  assert.deepStrictEqual(got, expected)
-
-  spec = '24'
-  expected = '24.0'
-  got = setupBeam.getVersionFromSpec(spec, versions)
-  assert.deepStrictEqual(got, expected)
-
-  spec = '23.3'
-  expected = '23.3.4'
-  got = setupBeam.getVersionFromSpec(spec, versions)
-  assert.deepStrictEqual(got, expected)
-
-  simulateInput('version-type', 'strict')
-  spec = 'master'
-  expected = 'master'
-  got = setupBeam.getVersionFromSpec(spec, versions)
-  assert.deepStrictEqual(got, expected)
-  simulateInput('version-type', 'loose')
-
-  spec = 'master'
-  expected = 'master'
-  got = setupBeam.getVersionFromSpec(spec, versions)
-  assert.deepStrictEqual(got, expected)
-
-  simulateInput('version-type', 'strict')
-  spec = '22.3.4.2'
-  expected = '22.3.4.2'
-  got = setupBeam.getVersionFromSpec(spec, versions)
-  assert.deepStrictEqual(got, expected)
-  simulateInput('version-type', 'loose')
-}
-
-function simulateInput(key, value) {
-  process.env[`INPUT_${key.replace(/ /g, '_').toUpperCase()}`] = value
-}
-
-all()
-  .then(() => process.exit(0))
-  .catch((err) => {
-    console.error(err)
-    process.exit(1)
-  })
@@ -8,10 +8,18 @@ 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: ${{ github.token }}
  otp-version:
    description: Version range or exact version of Erlang/OTP to use,
      or false when installing only Gleam without OTP
-    required: true
  elixir-version:
    description: Version range or exact version of Elixir to use
  gleam-version:
@@ -31,8 +39,16 @@ inputs:
      to guess versions based on semver rules
    default: loose
  disable_problem_matchers:
-    description: whether to have the problem matchers present in the results (or not)
+    description: whether to have the problem matchers present in the results
+      (or not)
    default: false
+  version-file:
+    description: a versions file (e.g. as used by `asdf`), which defines inputs
+    default: ''
+  hexpm-mirrors:
+    description: mirror(s) for hex.pm, one per line
+    default: |
+        https://builds.hex.pm
 outputs:
  elixir-version:
    description: Exact version of Elixir that was installed
@@ -42,6 +58,8 @@ outputs:
    description: Exact version of Gleam that was installed
  rebar3-version:
    description: Exact version of rebar3 that was installed
+  setup-beam-version:
+    description: The commit unique id of the execution action version
 runs:
-  using: node16
+  using: node20
  main: dist/index.js
@@ -57,22 +57,6 @@
          "column": 3
        }
      ]
-    },
-    {
-      "owner": "elixir-dialyzerOutputDefault",
-      "severity": "warning",
-      "pattern": [
-        {
-          "regexp": "^(.*):(\\d+):(.*)",
-          "file": 1,
-          "line": 2,
-          "code": 3
-        },
-        {
-          "regexp": "^(.*)$",
-          "message": 1
-        }
-      ]
    }
  ]
 }
@@ -1,21 +0,0 @@
-param([Parameter(Mandatory=$true)][string]${VSN})
-
-$ErrorActionPreference="Stop"
-
-Set-Location ${Env:RUNNER_TEMP}
-
-$FILE_INPUT="${VSN}.zip"
-$FILE_OUTPUT="elixir.zip"
-$DIR_FOR_BIN=".setup-beam/elixir"
-
-$ProgressPreference="SilentlyContinue"
-Invoke-WebRequest "https://repo.hex.pm/builds/elixir/${FILE_INPUT}" -OutFile "${FILE_OUTPUT}"
-$ProgressPreference="Continue"
-New-Item "${DIR_FOR_BIN}" -ItemType Directory | Out-Null
-$ProgressPreference="SilentlyContinue"
-Expand-Archive -DestinationPath "${DIR_FOR_BIN}" -Path "${FILE_OUTPUT}"
-$ProgressPreference="Continue"
-Write-Output "Installed Elixir version follows"
-& "${DIR_FOR_BIN}/bin/elixir" "-v" | Write-Output
-
-"INSTALL_DIR_FOR_ELIXIR=${Env:RUNNER_TEMP}/${DIR_FOR_BIN}" | Out-File -FilePath ${Env:GITHUB_ENV} -Encoding utf8 -Append
@@ -1,18 +0,0 @@
-#!/bin/bash
-
-set -eo pipefail
-
-cd "${RUNNER_TEMP}"
-
-VSN=${1}
-FILE_INPUT="${VSN}.zip"
-FILE_OUTPUT=elixir.zip
-DIR_FOR_BIN=.setup-beam/elixir
-
-wget -q -O "${FILE_OUTPUT}" "https://repo.hex.pm/builds/elixir/${FILE_INPUT}"
-mkdir -p "${DIR_FOR_BIN}"
-unzip -q -o -d "${DIR_FOR_BIN}" "${FILE_OUTPUT}"
-echo "Installed Elixir version follows"
-${DIR_FOR_BIN}/bin/elixir -v
-
-echo "INSTALL_DIR_FOR_ELIXIR=${RUNNER_TEMP}/${DIR_FOR_BIN}" >> "${GITHUB_ENV}"
@@ -1,21 +0,0 @@
-param([Parameter(Mandatory=$true)][string]${VSN})
-
-$ErrorActionPreference="Stop"
-
-Set-Location ${Env:RUNNER_TEMP}
-
-$FILE_INPUT="gleam-${VSN}-x86_64-pc-windows-msvc.zip"
-$FILE_OUTPUT="gleam.zip"
-$DIR_FOR_BIN=".setup-beam/gleam"
-
-$ProgressPreference="SilentlyContinue"
-Invoke-WebRequest "https://github.com/gleam-lang/gleam/releases/download/${VSN}/${FILE_INPUT}" -OutFile "${FILE_OUTPUT}"
-$ProgressPreference="Continue"
-New-Item "${DIR_FOR_BIN}/bin" -ItemType Directory | Out-Null
-$ProgressPreference="SilentlyContinue"
-Expand-Archive -DestinationPath "${DIR_FOR_BIN}/bin" -Path "${FILE_OUTPUT}"
-$ProgressPreference="Continue"
-Write-Output "Installed Gleam version follows"
-& "${DIR_FOR_BIN}/bin/gleam" "--version" | Write-Output
-
-"INSTALL_DIR_FOR_GLEAM=${Env:RUNNER_TEMP}/${DIR_FOR_BIN}" | Out-File -FilePath ${Env:GITHUB_ENV} -Encoding utf8 -Append
@@ -1,34 +0,0 @@
-#!/bin/bash
-
-set -eo pipefail
-
-cd "${RUNNER_TEMP}"
-
-VSN="$1"
-FILE_OUTPUT=gleam.tar.gz
-DIR_FOR_BIN=.setup-beam/gleam
-
-version_gt() {
-  test "$(printf '%s\n' "$@" | sort -V | head -n 1)" != "$1"
-}
-
-uses_llvm_triplets() {
-  local version="$1"
-  test "$version" = "nightly" || version_gt "$version" "v0.22.1"
-}
-
-if uses_llvm_triplets "$VSN"
-then
-  FILE_INPUT="gleam-${VSN}-x86_64-unknown-linux-musl.tar.gz"
-else
-  FILE_INPUT="gleam-${VSN}-linux-amd64.tar.gz"
-fi
-
-wget -q -O "${FILE_OUTPUT}" "https://github.com/gleam-lang/gleam/releases/download/${VSN}/${FILE_INPUT}"
-mkdir -p "${DIR_FOR_BIN}/bin"
-tar zxf "${FILE_OUTPUT}" -C "${DIR_FOR_BIN}/bin"
-
-echo "Installed Gleam version follows"
-${DIR_FOR_BIN}/bin/gleam --version
-
-echo "INSTALL_DIR_FOR_GLEAM=${RUNNER_TEMP}/${DIR_FOR_BIN}" >> "${GITHUB_ENV}"
@@ -1,17 +0,0 @@
-param([Parameter(Mandatory=$true)][string]${VSN})
-
-$ErrorActionPreference="Stop"
-
-Set-Location ${Env:RUNNER_TEMP}
-
-$FILE_OUTPUT="otp.exe"
-$ERL_ROOT = "${Env:RUNNER_TEMP}\.setup-beam\otp"
-
-$ProgressPreference="SilentlyContinue"
-Invoke-WebRequest "https://github.com/erlang/otp/releases/download/OTP-${VSN}/otp_win64_${VSN}.exe" -OutFile "${FILE_OUTPUT}"
-$ProgressPreference="Continue"
-Start-Process "${FILE_OUTPUT}" "/S /D=${ERL_ROOT}" -Wait
-Write-Output "Installed Erlang/OTP version follows"
-& "${ERL_ROOT}/bin/erl.exe" "+V" | Write-Output
-
-"INSTALL_DIR_FOR_OTP=" + ${ERL_ROOT}
@@ -1,20 +0,0 @@
-#!/bin/bash
-
-set -eo pipefail
-
-cd "${RUNNER_TEMP}"
-
-OS=${1}
-VSN=${2}
-FILE_INPUT="${VSN}.tar.gz"
-FILE_OUTPUT=otp.tar.gz
-DIR_FOR_BIN=.setup-beam/otp
-
-wget -q -O "${FILE_OUTPUT}" "https://repo.hex.pm/builds/otp/${OS}/${FILE_INPUT}"
-mkdir -p "${DIR_FOR_BIN}"
-tar zxf "${FILE_OUTPUT}" -C "${DIR_FOR_BIN}" --strip-components=1
-"${DIR_FOR_BIN}/Install" -minimal "$(pwd)/${DIR_FOR_BIN}"
-echo "Installed Erlang/OTP version follows"
-${DIR_FOR_BIN}/bin/erl -version
-
-echo "INSTALL_DIR_FOR_OTP=${RUNNER_TEMP}/${DIR_FOR_BIN}"
@@ -1,30 +0,0 @@
-param([Parameter(Mandatory=$true)][string]${VSN})
-
-$ErrorActionPreference="Stop"
-
-Set-Location ${Env:RUNNER_TEMP}
-
-$FILE_INPUT="rebar3"
-$FILE_OUTPUT="rebar3"
-$FILE_OUTPUT_PS1="rebar3.ps1"
-$DIR_FOR_BIN=".setup-beam/rebar3"
-
-$ProgressPreference="SilentlyContinue"
-$REBAR3_TARGET="https://github.com/erlang/rebar3/releases/download/${VSN}/${FILE_INPUT}"
-$REBAR3_NIGHTLY=""
-If ( ${VSN} -eq "nightly" )
-{
-    $REBAR3_TARGET="https://s3.amazonaws.com/rebar3-nightly/rebar3"
-    $REBAR3_NIGHTLY=" (from nightly build)"
-}
-Invoke-WebRequest "${REBAR3_TARGET}" -OutFile "${FILE_OUTPUT}"
-$ProgressPreference="Continue"
-New-Item "${DIR_FOR_BIN}/bin" -ItemType Directory | Out-Null
-Move-Item "${FILE_OUTPUT}" "${DIR_FOR_BIN}/bin"
-Write-Output "& escript.exe ${PWD}/${DIR_FOR_BIN}/bin/${FILE_OUTPUT} `${args}" | Out-File -FilePath "${FILE_OUTPUT_PS1}" -Encoding utf8 -Append
-type ${FILE_OUTPUT_PS1}
-Move-Item "${FILE_OUTPUT_PS1}" "${DIR_FOR_BIN}/bin"
-Write-Output "Installed rebar3 version${REBAR3_NIGHTLY} follows"
-& "${DIR_FOR_BIN}/bin/rebar3" "version" | Write-Output
-
-"INSTALL_DIR_FOR_REBAR3=${Env:RUNNER_TEMP}/${DIR_FOR_BIN}" | Out-File -FilePath ${Env:GITHUB_ENV} -Encoding utf8 -Append
@@ -1,25 +0,0 @@
-#!/bin/bash
-
-set -eo pipefail
-
-cd "${RUNNER_TEMP}"
-
-VSN=${1}
-FILE_INPUT=rebar3
-FILE_OUTPUT=rebar3
-DIR_FOR_BIN=.setup-beam/rebar3
-
-REBAR3_TARGET="https://github.com/erlang/rebar3/releases/download/${VSN}/${FILE_INPUT}"
-REBAR3_NIGHTLY=""
-if [ "${VSN}" == "nightly" ]; then
-    REBAR3_TARGET="https://s3.amazonaws.com/rebar3-nightly/rebar3"
-    REBAR3_NIGHTLY=" (from nightly build)"
-fi
-wget -q -O "${FILE_OUTPUT}" "${REBAR3_TARGET}"
-mkdir -p "${DIR_FOR_BIN}/bin"
-chmod +x "${FILE_OUTPUT}"
-mv "${FILE_OUTPUT}" "${DIR_FOR_BIN}/bin"
-echo "Installed rebar3 version${REBAR3_NIGHTLY} follows"
-${DIR_FOR_BIN}/bin/rebar3 version
-
-echo "INSTALL_DIR_FOR_REBAR3=${RUNNER_TEMP}/${DIR_FOR_BIN}" >> "${GITHUB_ENV}"
@@ -57,22 +57,6 @@
          "column": 3
        }
      ]
-    },
-    {
-      "owner": "elixir-dialyzerOutputDefault",
-      "severity": "warning",
-      "pattern": [
-        {
-          "regexp": "^(.*):(\\d+):(.*)",
-          "file": 1,
-          "line": 2,
-          "code": 3
-        },
-        {
-          "regexp": "^(.*)$",
-          "message": 1
-        }
-      ]
    }
  ]
 }
@@ -4,40 +4,34 @@
  "private": true,
  "scripts": {
    "build": "ncc build src/setup-beam.js --no-cache",
-    "format": "prettier src/**/*.js --write && prettier __tests__/**/*.js --write",
-    "jslint": "eslint src/**/*.js && eslint __tests__/**/*.js",
+    "format": "prettier src/**/*.js --write && prettier test/**/*.js --write",
+    "jslint": "eslint src/**/*.js && eslint test/**/*.js",
    "licenses": "yarn licenses generate-disclaimer > 3RD_PARTY_LICENSES",
-    "markdownlint": "markdownlint *.md",
-    "shellcheck": "shellcheck src/install-*.sh .github/workflows/*.sh",
-    "test": "node __tests__/setup-beam.test.js && node ./__tests__/problem-matchers.test.js",
+    "markdownlint": "markdownlint *.md ./github/**/*.md",
+    "shellcheck": "shellcheck .github/workflows/*.sh",
+    "test": "node test/setup-beam.test.js",
    "yamllint": "yamllint .github/workflows/**.yml && yamllint .*.yml && yamllint *.yml",
-    "build-dist": "npm install && npm run build && npm run format && npm run markdownlint && npm run shellcheck && npm run yamllint && npm run jslint"
-  },
-  "husky": {
-    "hooks": {
-      "pre-commit": "npm run format -- --check && npm run build && git add dist/"
-    }
+    "clean-dist": "rm -rf ./dist",
+    "lint": "npm run markdownlint && npm run shellcheck && npm run yamllint && npm run jslint",
+    "build-dist": "npm run clean-dist && npm install && npm run build && npm run format && npm run lint"
  },
  "dependencies": {
-    "@actions/core": "1.9.1",
+    "@actions/core": "1.10.0",
    "@actions/exec": "1.1.1",
-    "semver": "7.3.6"
+    "@actions/http-client": "2.1.0",
+    "@actions/tool-cache": "2.0.1",
+    "semver": "7.5.4"
  },
  "devDependencies": {
-    "@vercel/ncc": "0.33.4",
-    "eslint": "8.14.0",
-    "eslint-config-airbnb": "19.0.4",
-    "eslint-plugin-import": "2.26.0",
-    "eslint-plugin-jsx-a11y": "6.5.1",
-    "eslint-plugin-react": "7.29.0",
-    "husky": "7.0.4",
-    "markdownlint": "0.25.1",
-    "prettier": "2.6.2",
-    "shellcheck": "1.1.0",
-    "yaml-lint": "1.3.0",
-    "yarn": "1.22.18"
+    "@vercel/ncc": "0.36.1",
+    "eslint": "8.43.0",
+    "markdownlint-cli": "0.35.0",
+    "prettier": "2.8.8",
+    "shellcheck": "2.2.0",
+    "yaml-lint": "1.7.0",
+    "yarn": "1.22.19"
  },
  "engines": {
-    "node": ">=16"
+    "node": ">=20"
  }
 }
@@ -1,21 +0,0 @@
-param([Parameter(Mandatory=$true)][string]${VSN})
-
-$ErrorActionPreference="Stop"
-
-Set-Location ${Env:RUNNER_TEMP}
-
-$FILE_INPUT="${VSN}.zip"
-$FILE_OUTPUT="elixir.zip"
-$DIR_FOR_BIN=".setup-beam/elixir"
-
-$ProgressPreference="SilentlyContinue"
-Invoke-WebRequest "https://repo.hex.pm/builds/elixir/${FILE_INPUT}" -OutFile "${FILE_OUTPUT}"
-$ProgressPreference="Continue"
-New-Item "${DIR_FOR_BIN}" -ItemType Directory | Out-Null
-$ProgressPreference="SilentlyContinue"
-Expand-Archive -DestinationPath "${DIR_FOR_BIN}" -Path "${FILE_OUTPUT}"
-$ProgressPreference="Continue"
-Write-Output "Installed Elixir version follows"
-& "${DIR_FOR_BIN}/bin/elixir" "-v" | Write-Output
-
-"INSTALL_DIR_FOR_ELIXIR=${Env:RUNNER_TEMP}/${DIR_FOR_BIN}" | Out-File -FilePath ${Env:GITHUB_ENV} -Encoding utf8 -Append
@@ -1,18 +0,0 @@
-#!/bin/bash
-
-set -eo pipefail
-
-cd "${RUNNER_TEMP}"
-
-VSN=${1}
-FILE_INPUT="${VSN}.zip"
-FILE_OUTPUT=elixir.zip
-DIR_FOR_BIN=.setup-beam/elixir
-
-wget -q -O "${FILE_OUTPUT}" "https://repo.hex.pm/builds/elixir/${FILE_INPUT}"
-mkdir -p "${DIR_FOR_BIN}"
-unzip -q -o -d "${DIR_FOR_BIN}" "${FILE_OUTPUT}"
-echo "Installed Elixir version follows"
-${DIR_FOR_BIN}/bin/elixir -v
-
-echo "INSTALL_DIR_FOR_ELIXIR=${RUNNER_TEMP}/${DIR_FOR_BIN}" >> "${GITHUB_ENV}"
@@ -1,21 +0,0 @@
-param([Parameter(Mandatory=$true)][string]${VSN})
-
-$ErrorActionPreference="Stop"
-
-Set-Location ${Env:RUNNER_TEMP}
-
-$FILE_INPUT="gleam-${VSN}-x86_64-pc-windows-msvc.zip"
-$FILE_OUTPUT="gleam.zip"
-$DIR_FOR_BIN=".setup-beam/gleam"
-
-$ProgressPreference="SilentlyContinue"
-Invoke-WebRequest "https://github.com/gleam-lang/gleam/releases/download/${VSN}/${FILE_INPUT}" -OutFile "${FILE_OUTPUT}"
-$ProgressPreference="Continue"
-New-Item "${DIR_FOR_BIN}/bin" -ItemType Directory | Out-Null
-$ProgressPreference="SilentlyContinue"
-Expand-Archive -DestinationPath "${DIR_FOR_BIN}/bin" -Path "${FILE_OUTPUT}"
-$ProgressPreference="Continue"
-Write-Output "Installed Gleam version follows"
-& "${DIR_FOR_BIN}/bin/gleam" "--version" | Write-Output
-
-"INSTALL_DIR_FOR_GLEAM=${Env:RUNNER_TEMP}/${DIR_FOR_BIN}" | Out-File -FilePath ${Env:GITHUB_ENV} -Encoding utf8 -Append
@@ -1,34 +0,0 @@
-#!/bin/bash
-
-set -eo pipefail
-
-cd "${RUNNER_TEMP}"
-
-VSN="$1"
-FILE_OUTPUT=gleam.tar.gz
-DIR_FOR_BIN=.setup-beam/gleam
-
-version_gt() {
-  test "$(printf '%s\n' "$@" | sort -V | head -n 1)" != "$1"
-}
-
-uses_llvm_triplets() {
-  local version="$1"
-  test "$version" = "nightly" || version_gt "$version" "v0.22.1"
-}
-
-if uses_llvm_triplets "$VSN"
-then
-  FILE_INPUT="gleam-${VSN}-x86_64-unknown-linux-musl.tar.gz"
-else
-  FILE_INPUT="gleam-${VSN}-linux-amd64.tar.gz"
-fi
-
-wget -q -O "${FILE_OUTPUT}" "https://github.com/gleam-lang/gleam/releases/download/${VSN}/${FILE_INPUT}"
-mkdir -p "${DIR_FOR_BIN}/bin"
-tar zxf "${FILE_OUTPUT}" -C "${DIR_FOR_BIN}/bin"
-
-echo "Installed Gleam version follows"
-${DIR_FOR_BIN}/bin/gleam --version
-
-echo "INSTALL_DIR_FOR_GLEAM=${RUNNER_TEMP}/${DIR_FOR_BIN}" >> "${GITHUB_ENV}"
@@ -1,17 +0,0 @@
-param([Parameter(Mandatory=$true)][string]${VSN})
-
-$ErrorActionPreference="Stop"
-
-Set-Location ${Env:RUNNER_TEMP}
-
-$FILE_OUTPUT="otp.exe"
-$ERL_ROOT = "${Env:RUNNER_TEMP}\.setup-beam\otp"
-
-$ProgressPreference="SilentlyContinue"
-Invoke-WebRequest "https://github.com/erlang/otp/releases/download/OTP-${VSN}/otp_win64_${VSN}.exe" -OutFile "${FILE_OUTPUT}"
-$ProgressPreference="Continue"
-Start-Process "${FILE_OUTPUT}" "/S /D=${ERL_ROOT}" -Wait
-Write-Output "Installed Erlang/OTP version follows"
-& "${ERL_ROOT}/bin/erl.exe" "+V" | Write-Output
-
-"INSTALL_DIR_FOR_OTP=" + ${ERL_ROOT}
@@ -1,20 +0,0 @@
-#!/bin/bash
-
-set -eo pipefail
-
-cd "${RUNNER_TEMP}"
-
-OS=${1}
-VSN=${2}
-FILE_INPUT="${VSN}.tar.gz"
-FILE_OUTPUT=otp.tar.gz
-DIR_FOR_BIN=.setup-beam/otp
-
-wget -q -O "${FILE_OUTPUT}" "https://repo.hex.pm/builds/otp/${OS}/${FILE_INPUT}"
-mkdir -p "${DIR_FOR_BIN}"
-tar zxf "${FILE_OUTPUT}" -C "${DIR_FOR_BIN}" --strip-components=1
-"${DIR_FOR_BIN}/Install" -minimal "$(pwd)/${DIR_FOR_BIN}"
-echo "Installed Erlang/OTP version follows"
-${DIR_FOR_BIN}/bin/erl -version
-
-echo "INSTALL_DIR_FOR_OTP=${RUNNER_TEMP}/${DIR_FOR_BIN}"
@@ -1,30 +0,0 @@
-param([Parameter(Mandatory=$true)][string]${VSN})
-
-$ErrorActionPreference="Stop"
-
-Set-Location ${Env:RUNNER_TEMP}
-
-$FILE_INPUT="rebar3"
-$FILE_OUTPUT="rebar3"
-$FILE_OUTPUT_PS1="rebar3.ps1"
-$DIR_FOR_BIN=".setup-beam/rebar3"
-
-$ProgressPreference="SilentlyContinue"
-$REBAR3_TARGET="https://github.com/erlang/rebar3/releases/download/${VSN}/${FILE_INPUT}"
-$REBAR3_NIGHTLY=""
-If ( ${VSN} -eq "nightly" )
-{
-    $REBAR3_TARGET="https://s3.amazonaws.com/rebar3-nightly/rebar3"
-    $REBAR3_NIGHTLY=" (from nightly build)"
-}
-Invoke-WebRequest "${REBAR3_TARGET}" -OutFile "${FILE_OUTPUT}"
-$ProgressPreference="Continue"
-New-Item "${DIR_FOR_BIN}/bin" -ItemType Directory | Out-Null
-Move-Item "${FILE_OUTPUT}" "${DIR_FOR_BIN}/bin"
-Write-Output "& escript.exe ${PWD}/${DIR_FOR_BIN}/bin/${FILE_OUTPUT} `${args}" | Out-File -FilePath "${FILE_OUTPUT_PS1}" -Encoding utf8 -Append
-type ${FILE_OUTPUT_PS1}
-Move-Item "${FILE_OUTPUT_PS1}" "${DIR_FOR_BIN}/bin"
-Write-Output "Installed rebar3 version${REBAR3_NIGHTLY} follows"
-& "${DIR_FOR_BIN}/bin/rebar3" "version" | Write-Output
-
-"INSTALL_DIR_FOR_REBAR3=${Env:RUNNER_TEMP}/${DIR_FOR_BIN}" | Out-File -FilePath ${Env:GITHUB_ENV} -Encoding utf8 -Append
@@ -1,25 +0,0 @@
-#!/bin/bash
-
-set -eo pipefail
-
-cd "${RUNNER_TEMP}"
-
-VSN=${1}
-FILE_INPUT=rebar3
-FILE_OUTPUT=rebar3
-DIR_FOR_BIN=.setup-beam/rebar3
-
-REBAR3_TARGET="https://github.com/erlang/rebar3/releases/download/${VSN}/${FILE_INPUT}"
-REBAR3_NIGHTLY=""
-if [ "${VSN}" == "nightly" ]; then
-    REBAR3_TARGET="https://s3.amazonaws.com/rebar3-nightly/rebar3"
-    REBAR3_NIGHTLY=" (from nightly build)"
-fi
-wget -q -O "${FILE_OUTPUT}" "${REBAR3_TARGET}"
-mkdir -p "${DIR_FOR_BIN}/bin"
-chmod +x "${FILE_OUTPUT}"
-mv "${FILE_OUTPUT}" "${DIR_FOR_BIN}/bin"
-echo "Installed rebar3 version${REBAR3_NIGHTLY} follows"
-${DIR_FOR_BIN}/bin/rebar3 version
-
-echo "INSTALL_DIR_FOR_REBAR3=${RUNNER_TEMP}/${DIR_FOR_BIN}" >> "${GITHUB_ENV}"
@@ -1,79 +0,0 @@
-const { exec } = require('@actions/exec')
-const path = require('path')
-
-/**
- * Install Erlang/OTP.
- *
- * @param {string} osVersion
- * @param {string} otpVersion
- */
-async function installOTP(osVersion, otpVersion) {
-  const OS = process.platform
-  if (OS === 'linux') {
-    await exec(path.join(__dirname, 'install-otp.sh'), [osVersion, otpVersion])
-  } else if (OS === 'win32') {
-    const script = path.join(__dirname, 'install-otp.ps1')
-    await exec(`pwsh.exe ${script} -VSN:${otpVersion}`)
-  }
-}
-
-/**
- * Install Elixir.
- *
- * @param {string} elixirVersion
- */
-async function installElixir(elixirVersion) {
-  const OS = process.platform
-  if (OS === 'linux') {
-    await exec(path.join(__dirname, 'install-elixir.sh'), [elixirVersion])
-  } else if (OS === 'win32') {
-    const script = path.join(__dirname, 'install-elixir.ps1')
-    await exec(`pwsh.exe ${script} -VSN:${elixirVersion}`)
-  }
-}
-
-/**
- * Install Gleam.
- *
- * @param {string} gleamVersion
- */
-async function installGleam(gleamVersion) {
-  const OS = process.platform
-  if (OS === 'linux') {
-    await exec(path.join(__dirname, 'install-gleam.sh'), [gleamVersion])
-  } else if (OS === 'win32') {
-    const script = path.join(__dirname, 'install-gleam.ps1')
-    await exec(`pwsh.exe ${script} -VSN:${gleamVersion}`)
-  }
-}
-
-/**
- * Install rebar3.
- *
- * @param {string} rebar3Version
- */
-async function installRebar3(rebar3Version) {
-  const OS = process.platform
-  if (OS === 'linux') {
-    await exec(path.join(__dirname, 'install-rebar3.sh'), [rebar3Version])
-  } else if (OS === 'win32') {
-    const script = path.join(__dirname, 'install-rebar3.ps1')
-    await exec(`pwsh.exe ${script} -VSN:${rebar3Version}`)
-  }
-}
-
-function checkPlatform() {
-  if (process.platform !== 'linux' && process.platform !== 'win32') {
-    throw new Error(
-      '@erlef/setup-beam only supports Ubuntu and Windows at this time',
-    )
-  }
-}
-
-module.exports = {
-  installOTP,
-  installElixir,
-  installGleam,
-  installRebar3,
-  checkPlatform,
-}
@@ -11,8 +11,8 @@ jobs:
  test:
    runs-on: ubuntu-latest
    steps:
-      - uses: actions/checkout@v2.0.0
-      - uses: erlef/setup-beam@v1.9.0
+      - uses: actions/checkout@v4
+      - uses: erlef/setup-beam@v1
        with:
          otp-version: "23.2"
          gleam-version: "0.23.0-rc1"
@@ -0,0 +1,2 @@
+/target/
+main
@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "rust_rebar3_cmd"
+version = "0.1.0"
@@ -0,0 +1,8 @@
+[package]
+name = "rust_rebar3_cmd"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
@@ -0,0 +1,32 @@
+use std::env;
+use std::process;
+use std::string;
+
+// an example function...
+fn main() {
+    let key = "PATH";
+    match env::var(key) {
+        Ok(val) => println!("{key}: {val:?}"),
+        Err(e) => println!("couldn't interpret {key}: {e}"),
+    }
+}
+
+#[allow(dead_code)]
+fn rebar3_cmd_version() -> Result<String, string::FromUtf8Error> {
+    println!("going for rebar3.cmd");
+    let output = process::Command::new("rebar3.cmd")
+        .arg("version")
+        .output()
+        .expect("error");
+    return String::from_utf8(output.stdout);
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn it_works() {
+        rebar3_cmd_version().unwrap();
+    }
+}
@@ -0,0 +1,674 @@
+simulateInput('otp-version', '25.1.2')
+simulateInput('elixir-version', '1.14.2')
+simulateInput('rebar3-version', '3.20')
+simulateInput('install-rebar', 'true')
+simulateInput('install-hex', 'true')
+simulateInput('github-token', process.env.GITHUB_TOKEN)
+simulateInput('hexpm-mirrors', 'https://builds.hex.pm', { multiline: true })
+
+const assert = require('assert')
+const fs = require('fs')
+const os = require('os')
+const path = require('path')
+const core = require('@actions/core')
+const setupBeam = require('../src/setup-beam')
+const { problemMatcher } = require('../matchers/elixir-matchers.json')
+
+async function all() {
+  await testFailInstallOTP()
+  await testFailInstallElixir()
+  await testFailInstallGleam()
+  await testFailInstallRebar3()
+
+  await testOTPVersions()
+  await testElixirVersions()
+  await testGleamVersions()
+  await testRebar3Versions()
+
+  await testGetVersionFromSpec()
+
+  await testParseVersionFile()
+
+  await testElixirMixCompileError()
+  await testElixirMixCompileWarning()
+  await testElixirMixTestFailure()
+  await testElixirCredoOutputDefault()
+}
+
+async function testFailInstallOTP() {
+  const otpOSVersion = 'ubuntu-08.04'
+  const otpVersion = 'OTP-23.2'
+  assert.rejects(
+    async () => {
+      await setupBeam.install('otp', {
+        hexMirror: 'https://builds.hex.pm',
+        otpOSVersion,
+        otpVersion,
+      })
+    },
+    (err) => {
+      assert.ok(err instanceof Error)
+      return true
+    },
+    `Installing Erlang/OTP ${otpVersion} over ${otpOSVersion} is supposed to fail`,
+  )
+}
+
+async function testFailInstallElixir() {
+  let exVersion
+
+  exVersion = '0.11'
+  assert.rejects(
+    async () => {
+      await setupBeam.install('elixir', {
+        hexMirror: 'https://builds.hex.pm',
+        exVersion,
+      })
+    },
+    (err) => {
+      assert.ok(err instanceof Error)
+      return true
+    },
+    `Installing Elixir ${exVersion} is supposed to fail`,
+  )
+
+  exVersion = 'v1.0.0-otp-17'
+  assert.rejects(
+    async () => {
+      await setupBeam.install('elixir', {
+        hexMirror: 'https://builds.hex.pm',
+        exVersion,
+      })
+    },
+    (err) => {
+      assert.ok(err instanceof Error)
+      return true
+    },
+    `Installing Elixir ${exVersion} is supposed to fail`,
+  )
+}
+
+async function testFailInstallGleam() {
+  const gleamVersion = '0.1.3'
+  assert.rejects(
+    async () => {
+      await setupBeam.install('gleam', { gleamVersion })
+    },
+    (err) => {
+      assert.ok(err instanceof Error)
+      return true
+    },
+    `Installing Gleam ${gleamVersion} is supposed to fail`,
+  )
+}
+
+async function testFailInstallRebar3() {
+  const r3Version = '0.14.4'
+  assert.rejects(
+    async () => {
+      await setupBeam.install('rebar3', { r3Version })
+    },
+    (err) => {
+      assert.ok(err instanceof Error)
+      return true
+    },
+    `Installing rebar3 ${r3Version} is supposed to fail`,
+  )
+}
+
+async function testOTPVersions() {
+  let got
+  let expected
+  let spec
+  let osVersion
+  let before
+  const hexMirrors = simulateInput(
+    'hexpm-mirrors',
+    'https://repo.hex.pm, https://cdn.jsdelivr.net/hex',
+    { multiline: true },
+  )
+
+  if (process.platform === 'linux') {
+    before = simulateInput('version-type', 'strict')
+    spec = '26'
+    osVersion = 'ubuntu-24.04'
+    expected = 'maint-26'
+    got = await setupBeam.getOTPVersion(spec, osVersion, hexMirrors)
+    assert.deepStrictEqual(got, expected)
+
+    simulateInput('version-type', before)
+    spec = '27.0'
+    osVersion = 'ubuntu-24.04'
+    expected = 'OTP-27.0'
+    got = await setupBeam.getOTPVersion(spec, osVersion, hexMirrors)
+    assert.deepStrictEqual(got, expected)
+
+    simulateInput('version-type', before)
+    spec = '25.3.2.1'
+    osVersion = 'ubuntu-20.04'
+    expected = 'OTP-25.3.2.1'
+    got = await setupBeam.getOTPVersion(spec, osVersion, hexMirrors)
+    assert.deepStrictEqual(got, expected)
+    simulateInput('version-type', before)
+
+    spec = '19.3.x'
+    osVersion = 'ubuntu-16.04'
+    expected = 'OTP-19.3.6.13'
+    got = await setupBeam.getOTPVersion(spec, osVersion)
+    assert.deepStrictEqual(got, expected)
+
+    spec = '^19.3.6'
+    osVersion = 'ubuntu-16.04'
+    expected = 'OTP-19.3.6.13'
+    got = await setupBeam.getOTPVersion(spec, osVersion)
+    assert.deepStrictEqual(got, expected)
+
+    spec = '^19.3'
+    osVersion = 'ubuntu-18.04'
+    expected = 'OTP-19.3.6.13'
+    got = await setupBeam.getOTPVersion(spec, osVersion)
+    assert.deepStrictEqual(got, expected)
+
+    spec = '20'
+    osVersion = 'ubuntu-20.04'
+    expected = 'OTP-20.3.8.26'
+    got = await setupBeam.getOTPVersion(spec, osVersion)
+    assert.deepStrictEqual(got, expected)
+
+    spec = '20.3.8.26'
+    osVersion = 'ubuntu-20.04'
+    expected = 'OTP-20.3.8.26'
+    got = await setupBeam.getOTPVersion(spec, osVersion, hexMirrors)
+    assert.deepStrictEqual(got, expected)
+
+    spec = '20.x'
+    osVersion = 'ubuntu-20.04'
+    expected = 'OTP-20.3.8.26'
+    got = await setupBeam.getOTPVersion(spec, osVersion)
+    assert.deepStrictEqual(got, expected)
+
+    spec = '20.0'
+    osVersion = 'ubuntu-20.04'
+    expected = 'OTP-20.0.5'
+    got = await setupBeam.getOTPVersion(spec, osVersion)
+    assert.deepStrictEqual(got, expected)
+
+    spec = '20.0.x'
+    osVersion = 'ubuntu-20.04'
+    expected = 'OTP-20.0.5'
+    got = await setupBeam.getOTPVersion(spec, osVersion)
+    assert.deepStrictEqual(got, expected)
+
+    spec = 'maint'
+    osVersion = 'ubuntu-22.04'
+    expected = 'maint'
+    got = await setupBeam.getOTPVersion(spec, osVersion, hexMirrors)
+    assert.deepStrictEqual(got, expected)
+
+    spec = 'master'
+    osVersion = 'ubuntu-22.04'
+    expected = 'master'
+    got = await setupBeam.getOTPVersion(spec, osVersion, hexMirrors)
+    assert.deepStrictEqual(got, expected)
+  }
+
+  if (process.platform === 'win32') {
+    spec = '24.0.1'
+    osVersion = 'windows-latest'
+    expected = '24.0.1'
+    got = await setupBeam.getOTPVersion(spec, osVersion)
+    assert.deepStrictEqual(got, expected)
+
+    spec = '23.2.x'
+    osVersion = 'windows-2016'
+    expected = '23.2.7'
+    got = await setupBeam.getOTPVersion(spec, osVersion)
+    assert.deepStrictEqual(got, expected)
+
+    spec = '23.0'
+    osVersion = 'windows-2019'
+    expected = '23.0.4'
+    got = await setupBeam.getOTPVersion(spec, osVersion)
+    assert.deepStrictEqual(got, expected)
+  }
+
+  simulateInput('hexpm-mirrors', hexMirrors, { multiline: true })
+}
+
+async function testElixirVersions() {
+  let got
+  let expected
+  let spec
+  let otpVersion
+  let before
+  const hexMirrors = simulateInput('hexpm-mirrors', 'https://repo.hex.pm', {
+    multiline: true,
+  })
+
+  spec = '1.1.x'
+  otpVersion = 'OTP-17'
+  expected = 'v1.1.1-otp-17'
+  got = await setupBeam.getElixirVersion(spec, otpVersion)
+  assert.deepStrictEqual(got, expected)
+
+  spec = '1.10.4'
+  otpVersion = 'OTP-23'
+  expected = 'v1.10.4-otp-23'
+  got = await setupBeam.getElixirVersion(spec, otpVersion)
+  assert.deepStrictEqual(got, expected)
+
+  spec = '1.12.1'
+  otpVersion = 'OTP-24.0.2'
+  expected = 'v1.12.1-otp-24'
+  got = await setupBeam.getElixirVersion(spec, otpVersion)
+  assert.deepStrictEqual(got, expected)
+
+  before = simulateInput('version-type', 'strict')
+  spec = '1.14.0'
+  otpVersion = 'main'
+  expected = 'v1.14.0'
+  got = await setupBeam.getElixirVersion(spec, otpVersion)
+  assert.deepStrictEqual(got, expected)
+  simulateInput('version-type', before)
+
+  before = simulateInput('version-type', 'strict')
+  spec = 'v1.11.0-rc.0'
+  otpVersion = 'OTP-23'
+  expected = 'v1.11.0-rc.0-otp-23'
+  got = await setupBeam.getElixirVersion(spec, otpVersion)
+  assert.deepStrictEqual(got, expected)
+  simulateInput('version-type', before)
+
+  before = simulateInput('version-type', 'strict')
+  spec = 'v1.11.0-rc.0-otp-23'
+  otpVersion = 'OTP-23'
+  expected = 'v1.11.0-rc.0-otp-23'
+  got = await setupBeam.getElixirVersion(spec, otpVersion)
+  assert.deepStrictEqual(got, expected)
+  simulateInput('version-type', before)
+
+  before = simulateInput('version-type', 'strict')
+  spec = 'v1.11.0'
+  otpVersion = '22.3.4.2'
+  expected = 'v1.11.0-otp-22'
+  got = await setupBeam.getElixirVersion(spec, otpVersion)
+  assert.deepStrictEqual(got, expected)
+  simulateInput('version-type', before)
+
+  before = simulateInput('version-type', 'strict')
+  spec = 'main'
+  otpVersion = '23.1'
+  expected = 'main-otp-23'
+  got = await setupBeam.getElixirVersion(spec, otpVersion)
+  assert.deepStrictEqual(got, expected)
+  simulateInput('version-type', before)
+
+  simulateInput('hexpm-mirrors', hexMirrors, { multiline: true })
+}
+
+async function testGleamVersions() {
+  let got
+  let expected
+  let spec
+  let otpVersion
+
+  spec = 'v0.3.0'
+  otpVersion = 'OTP-23'
+  expected = 'v0.3.0'
+  got = await setupBeam.getGleamVersion(spec, otpVersion)
+  assert.deepStrictEqual(got, expected)
+
+  spec = '0.13.2'
+  otpVersion = 'OTP-24'
+  expected = 'v0.13.2'
+  got = await setupBeam.getGleamVersion(spec, otpVersion)
+  assert.deepStrictEqual(got, expected)
+
+  const before = simulateInput('version-type', 'strict')
+  spec = 'v0.14.0-rc2'
+  otpVersion = 'OTP-22'
+  expected = 'v0.14.0-rc2'
+  got = await setupBeam.getGleamVersion(spec, otpVersion)
+  assert.deepStrictEqual(got, expected)
+  simulateInput('version-type', before)
+}
+
+async function testRebar3Versions() {
+  let got
+  let expected
+  let spec
+
+  spec = '3.10.x'
+  expected = '3.10.0'
+  got = await setupBeam.getRebar3Version(spec)
+  assert.deepStrictEqual(got, expected)
+
+  spec = '3.11'
+  expected = '3.11.1'
+  got = await setupBeam.getRebar3Version(spec)
+  assert.deepStrictEqual(got, expected)
+
+  spec = '3.10'
+  expected = '3.10.0'
+  got = await setupBeam.getRebar3Version(spec)
+  assert.deepStrictEqual(got, expected)
+}
+
+async function testGetVersionFromSpec() {
+  let got
+  let expected
+  let spec
+  let before
+  const versions0 = [
+    '3.2.30.5',
+    '3.2.3.5',
+    '1',
+    '2',
+    '3.2.3.4.1',
+    '1.0.9',
+    '3.2.3.40.1',
+    '1.0.2',
+    '2.0',
+    '2.10',
+    '2.9',
+    '1.0',
+    '3.2.3.4.2',
+    '1.1.0',
+    '3.4.5.4',
+    '3.4.5.3',
+    '3.4.5.4.1',
+    '24.0-rc3',
+    '24.0-rc2',
+    '24.0',
+    '23.3.4',
+    '23.3.3',
+    '22.3.4.9.1',
+    '22.3.4.12.1',
+    '22.3.4.10.1',
+    '22.3.4.2',
+    'main',
+    'v11.11.0-rc.0-otp-23',
+    '22.3.4.2.1.0',
+    '12.1.2.2',
+    '12.1.2.4',
+    '12.1.2.0',
+    '12.1.2.3',
+    '12.1.2.3.0',
+  ]
+  const versions = {}
+  versions0.forEach((version) => {
+    versions[version] = version
+  })
+
+  spec = '1'
+  expected = '1.1.0'
+  got = setupBeam.getVersionFromSpec(spec, versions)
+  assert.deepStrictEqual(got, expected)
+
+  spec = '1.0'
+  expected = '1.0.9'
+  got = setupBeam.getVersionFromSpec(spec, versions)
+  assert.deepStrictEqual(got, expected)
+
+  before = simulateInput('version-type', 'strict')
+  spec = '1'
+  expected = '1'
+  got = setupBeam.getVersionFromSpec(spec, versions)
+  assert.deepStrictEqual(got, expected)
+  simulateInput('version-type', before)
+
+  before = simulateInput('version-type', 'strict')
+  spec = '1.0'
+  expected = '1.0'
+  got = setupBeam.getVersionFromSpec(spec, versions)
+  assert.deepStrictEqual(got, expected)
+  simulateInput('version-type', before)
+
+  spec = '2'
+  expected = '2.10'
+  got = setupBeam.getVersionFromSpec(spec, versions)
+  assert.deepStrictEqual(got, expected)
+
+  spec = '3'
+  expected = '3.4.5.4.1'
+  got = setupBeam.getVersionFromSpec(spec, versions)
+  assert.deepStrictEqual(got, expected)
+
+  spec = '3.2'
+  expected = '3.2.30.5'
+  got = setupBeam.getVersionFromSpec(spec, versions)
+  assert.deepStrictEqual(got, expected)
+
+  spec = '>20'
+  expected = '24.0'
+  got = setupBeam.getVersionFromSpec(spec, versions)
+  assert.deepStrictEqual(got, expected)
+
+  spec = '24.0'
+  expected = '24.0'
+  got = setupBeam.getVersionFromSpec(spec, versions)
+  assert.deepStrictEqual(got, expected)
+
+  before = simulateInput('version-type', 'strict')
+  spec = '24.0-rc3'
+  expected = '24.0-rc3'
+  got = setupBeam.getVersionFromSpec(spec, versions)
+  assert.deepStrictEqual(got, expected)
+  simulateInput('version-type', before)
+
+  spec = '24.0-rc2'
+  expected = '24.0-rc2'
+  got = setupBeam.getVersionFromSpec(spec, versions)
+  assert.deepStrictEqual(got, expected)
+
+  spec = '22.3'
+  expected = '22.3.4.12.1'
+  got = setupBeam.getVersionFromSpec(spec, versions)
+  assert.deepStrictEqual(got, expected)
+
+  spec = '23.3.3'
+  expected = '23.3.3'
+  got = setupBeam.getVersionFromSpec(spec, versions)
+  assert.deepStrictEqual(got, expected)
+
+  spec = '24'
+  expected = '24.0'
+  got = setupBeam.getVersionFromSpec(spec, versions)
+  assert.deepStrictEqual(got, expected)
+
+  spec = '23.3'
+  expected = '23.3.4'
+  got = setupBeam.getVersionFromSpec(spec, versions)
+  assert.deepStrictEqual(got, expected)
+
+  before = simulateInput('version-type', 'strict')
+  spec = 'main'
+  expected = 'main'
+  got = setupBeam.getVersionFromSpec(spec, versions)
+  assert.deepStrictEqual(got, expected)
+  simulateInput('version-type', before)
+
+  before = simulateInput('version-type', 'strict')
+  spec = '22.3.4.2'
+  expected = '22.3.4.2'
+  got = setupBeam.getVersionFromSpec(spec, versions)
+  assert.deepStrictEqual(got, expected)
+  simulateInput('version-type', before)
+
+  spec = '22.3.4.2'
+  expected = '22.3.4.2.1.0'
+  got = setupBeam.getVersionFromSpec(spec, versions)
+  assert.deepStrictEqual(got, expected)
+
+  spec = '22.3.4.2.1'
+  expected = '22.3.4.2.1.0'
+  got = setupBeam.getVersionFromSpec(spec, versions)
+  assert.deepStrictEqual(got, expected)
+
+  spec = '22.3.4.2.1.0'
+  expected = '22.3.4.2.1.0'
+  got = setupBeam.getVersionFromSpec(spec, versions)
+  assert.deepStrictEqual(got, expected)
+
+  spec = '12.1.2.3'
+  expected = '12.1.2.3.0'
+  got = setupBeam.getVersionFromSpec(spec, versions)
+  assert.deepStrictEqual(got, expected)
+
+  spec = '22.3.4.2.1.0.1'
+  expected = null
+  got = setupBeam.getVersionFromSpec(spec, versions)
+  assert.deepStrictEqual(got, expected)
+
+  before = simulateInput('version-type', 'strict')
+  spec = '22.3.4.3'
+  expected = null
+  got = setupBeam.getVersionFromSpec(spec, versions)
+  assert.deepStrictEqual(got, expected)
+  simulateInput('version-type', before)
+}
+
+async function testParseVersionFile() {
+  const otpVersion = unsimulateInput('otp-version')
+  const elixirVersion = unsimulateInput('elixir-version')
+  const gleamVersion = unsimulateInput('gleam-version')
+  const rebar3Version = unsimulateInput('rebar3-version')
+
+  const erlang = '25.1.1'
+  const elixir = '1.14.1'
+  const gleam = '0.23.0'
+  const rebar3 = '3.16.0'
+  const toolVersions = `# a comment
+erlang   ref:v${erlang}# comment, no space, and ref:v
+elixir ref:${elixir}  # comment, with space and ref:
+ not-gleam 0.23 # not picked up
+gleam ${gleam} 
+rebar ${rebar3}`
+  const filename = 'test/.tool-versions'
+  fs.writeFileSync(filename, toolVersions)
+  process.env.GITHUB_WORKSPACE = ''
+  const appVersions = setupBeam.parseVersionFile(filename)
+  assert.strictEqual(appVersions.get('erlang'), erlang)
+  assert.strictEqual(appVersions.get('elixir'), elixir)
+
+  const absoluteFilename = path.join(os.tmpdir(), '.tool-versions')
+  fs.writeFileSync(absoluteFilename, toolVersions)
+
+  process.env.GITHUB_WORKSPACE = process.cwd()
+  const absoluteAppVersions = setupBeam.parseVersionFile(absoluteFilename)
+  assert.strictEqual(absoluteAppVersions.get('erlang'), erlang)
+  assert.strictEqual(absoluteAppVersions.get('elixir'), elixir)
+
+  assert.ok(async () => {
+    await setupBeam.install('otp', { toolVersion: erlang })
+  })
+  assert.ok(async () => {
+    await setupBeam.install('elixir', { toolVersion: elixir })
+  })
+  assert.ok(async () => {
+    await setupBeam.install('gleam', { toolVersion: gleam })
+  })
+  assert.ok(async () => {
+    await setupBeam.install('rebar3', { toolVersion: rebar3 })
+  })
+
+  simulateInput('otp-version', otpVersion)
+  simulateInput('elixir-version', elixirVersion)
+  simulateInput('gleam-version', gleamVersion)
+  simulateInput('rebar3-version', rebar3Version)
+}
+
+async function testElixirMixCompileError() {
+  const [matcher] = problemMatcher.find(
+    ({ owner }) => owner === 'elixir-mixCompileError',
+  ).pattern
+
+  const output = '** (CompileError) lib/test.ex:16: undefined function err/0'
+  const [message, , file, line] = output.match(matcher.regexp)
+  assert.equal(file, 'lib/test.ex')
+  assert.equal(line, '16')
+  assert.equal(message, output)
+}
+
+async function testElixirMixCompileWarning() {
+  const [messagePattern, filePattern] = problemMatcher.find(
+    ({ owner }) => owner === 'elixir-mixCompileWarning',
+  ).pattern
+
+  const firstOutput =
+    'warning: variable "err" does not exist and is being expanded to "err()"'
+  const secondOutput = '  lib/test.ex:16: Test.hello/0'
+
+  const [, message] = firstOutput.match(messagePattern.regexp)
+  assert.equal(
+    message,
+    'variable "err" does not exist and is being expanded to "err()"',
+  )
+
+  const [, file, line] = secondOutput.match(filePattern.regexp)
+  assert.equal(file, 'lib/test.ex')
+  assert.equal(line, '16')
+}
+
+async function testElixirMixTestFailure() {
+  const [messagePattern, filePattern] = problemMatcher.find(
+    ({ owner }) => owner === 'elixir-mixTestFailure',
+  ).pattern
+
+  const firstOutput = '1) test throws (TestTest)'
+  const secondOutput = '  test/test_test.exs:9'
+
+  const [, message] = firstOutput.match(messagePattern.regexp)
+  assert.equal(message, 'test throws (TestTest)')
+
+  const [, file, line] = secondOutput.match(filePattern.regexp)
+  assert.equal(file, 'test/test_test.exs')
+  assert.equal(line, '9')
+}
+
+async function testElixirCredoOutputDefault() {
+  const [messagePattern, filePattern] = problemMatcher.find(
+    ({ owner }) => owner === 'elixir-credoOutputDefault',
+  ).pattern
+
+  const firstOutput = '┃ [F] → Function is too complex (CC is 29, max is 9).'
+  const secondOutput = '┃       lib/test.ex:15:7 #(Test.hello)'
+
+  const [, message] = firstOutput.match(messagePattern.regexp)
+  assert.equal(message, 'Function is too complex (CC is 29, max is 9).')
+
+  const [, file, line, column] = secondOutput.match(filePattern.regexp)
+  assert.equal(file, 'lib/test.ex')
+  assert.equal(line, '15')
+  assert.equal(column, '7')
+}
+
+function unsimulateInput(key) {
+  return simulateInput(key, '')
+}
+
+function simulateInput(key, value0, opts) {
+  const { multiline } = opts || {}
+  const before = process.env[input(key, opts)]
+  let value = value0
+  if (multiline) {
+    if (value.indexOf(', ') !== -1) {
+      value = value0.replace(/, /g, '\n')
+    } else {
+      value = value0.replace(/\n/g, ', ')
+    }
+  }
+  process.env[input(key)] = value
+  return before
+}
+
+function input(key) {
+  return `INPUT_${key.replace(/ /g, '_').toUpperCase()}`
+}
+
+all()
+  .then(() => process.exit(0))
+  .catch((err) => {
+    core.error(err)
+    process.exit(1)
+  })