Fix post -main-merge issue (#213)

* Fix OTP version null check

* Revert "Fix OTP version null check"

This reverts commit 2c433c16ac.

* Check that the resolved versions contain the spec.

* Only perform semver version resolution when spec is not an rc and version-type is not strict

* Move version inclusion check to the end of the function, when we may have prepended a 'v'

* Refactor function return

* Add test case for strict version resolving a spec that is no available version

.eslintrc.yml

@@ -9,7 +9,6 @@ parserOptions:
 rules:
   indent: ["warn", 2]
   max-len: ["warn", 100]
-  no-console: 0
   no-undef: "error"
   no-unused-vars: ["error", {"varsIgnorePattern": "^_"}]
   no-use-before-define: 0

.github/workflows/action.yml

@@ -6,18 +6,20 @@ on:
     branches:
       - main
   pull_request:
-    branches:
-      - main
+    types: [opened, synchronize]
+
+env:
+  GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
 
 jobs:
   check_integrity:
     name: Expected local npm actions
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-node@v1
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
         with:
-          node-version: 12
+          node-version: '14'
       - run: npm install -g npm
       - run: npm install
       - run: npm run build
@@ -27,28 +29,33 @@ jobs:
       - run: npm run shellcheck
       - run: npm run yamllint
       - run: npm run jslint
-      - run: npm run licenses
       - 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@v3
+      - uses: actions/setup-node@v3
         with:
-          node-version: 12
+          node-version: '14'
       - 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@v3
+      - uses: actions/setup-node@v3
         with:
-          node-version: 12
+          node-version: '14'
       - run: npm install --production
       - run: npm test

.github/workflows/hexpm-mirrors.yml

@@ -0,0 +1,37 @@
+---
+name: hexpm-mirrors
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+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@v3
+      - 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

.github/workflows/ubuntu.yml

@@ -6,8 +6,7 @@ on:
     branches:
       - main
   pull_request:
-    branches:
-      - main
+    types: [opened, synchronize]
 
 jobs:
   integration_test:
@@ -21,34 +20,41 @@ jobs:
       fail-fast: false
       matrix:
         combo:
-          - elixir-version: 'v1.0'
-            otp-version: '17'
-            os: 'ubuntu-16.04'
-          - elixir-version: 'v1.0'
-            otp-version: '17'
-            os: 'ubuntu-18.04'
-          - elixir-version: 'v1.1'
-            otp-version: '18'
-            os: 'ubuntu-16.04'
-          - elixir-version: 'v1.1'
-            otp-version: '18'
-            os: 'ubuntu-18.04'
-          - elixir-version: 'v1.2'
-            otp-version: '19'
-            rebar3-version: '3.10'
-            os: 'ubuntu-16.04'
-          - elixir-version: 'v1.2'
-            otp-version: '19'
-            rebar3-version: '3.10'
-            os: 'ubuntu-18.04'
+          - otp-version: '25.2'
+            elixir-version: '1.14.3'
+            os: 'ubuntu-latest'
+          - otp-version: '25.2'
+            elixir-version: '1.14.3'
+            os: 'ubuntu-latest'
+            version-type: 'strict'
+          - otp-version: '25'
+            elixir-version: '1'
+            rebar3-version: '3'
+            os: 'ubuntu-22.04'
+          - otp-version: '24'
+            elixir-version: '1'
+            rebar3-version: '3'
+            os: 'ubuntu-22.04'
+          - otp-version: '25.0'
+            elixir-version: 'v1.13.4-otp-25'
+            rebar3-version: '3.18.0'
+            os: 'ubuntu-latest'
+            version-type: 'strict'
+          - otp-version: '25.0'
+            elixir-version: 'v1.13.4'
+            rebar3-version: '3.18.0'
+            os: 'ubuntu-latest'
+            version-type: 'strict'
+          - otp-version: '25'
+            rebar3-version: 'nightly'
+            os: 'ubuntu-latest'
+          - otp-version: '24'
+            rebar3-version: 'nightly'
+            os: 'ubuntu-latest'
           - elixir-version: 'v1.4'
             otp-version: '20'
-            rebar3-version: '3.11'
-            os: 'ubuntu-16.04'
-          - 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'
@@ -56,11 +62,7 @@ jobs:
           - elixir-version: 'v1.6'
             otp-version: '21'
             rebar3-version: '3.12'
-            os: 'ubuntu-16.04'
-          - elixir-version: 'v1.6'
-            otp-version: '21'
-            rebar3-version: '3.12'
-            os: 'ubuntu-18.04'
+            os: 'ubuntu-20.04'
           - elixir-version: 'v1.6'
             otp-version: '21'
             rebar3-version: '3.12'
@@ -68,11 +70,7 @@ jobs:
           - elixir-version: 'v1.7'
             otp-version: '22'
             rebar3-version: '3.13'
-            os: 'ubuntu-16.04'
-          - elixir-version: 'v1.7'
-            otp-version: '22'
-            rebar3-version: '3.13'
-            os: 'ubuntu-18.04'
+            os: 'ubuntu-20.04'
           - elixir-version: 'v1.7'
             otp-version: '22'
             rebar3-version: '3.13'
@@ -80,11 +78,11 @@ jobs:
           - elixir-version: 'v1.10'
             otp-version: '23'
             rebar3-version: '3.14'
-            os: 'ubuntu-16.04'
-          - 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-20.04'
           - elixir-version: 'v1.10'
             otp-version: '23'
             rebar3-version: '3.14'
@@ -93,6 +91,10 @@ jobs:
             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'
@@ -107,12 +109,33 @@ jobs:
           - elixir-version: 'master'
             otp-version: '23.1'
             os:  'ubuntu-20.04'
-          - gleam-version: '0.16'
+          - elixir-version: 'main'
+            otp-version: '25'
+            os:  'ubuntu-20.04'
+            version-type: 'strict'
+          - gleam-version: '0.23'
             otp-version: '24'
-            rebar3-version: '3.16'
+            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'
+            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@v3
       - name: Use erlef/setup-beam
         id: setup-beam
         uses: ./
@@ -124,6 +147,7 @@ jobs:
           version-type: ${{matrix.combo.version-type}}
       - name: Erlang/OTP version (action)
         run: echo "Erlang/OTP ${{steps.setup-beam.outputs.otp-version}}"
+        if: ${{matrix.combo.otp-version}}
       - name: Elixir version (action)
         run: echo "Elixir ${{steps.setup-beam.outputs.elixir-version}}"
         if: ${{matrix.combo.elixir-version}}
@@ -141,17 +165,56 @@ 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 Gleam/rebar3 project tests
+      - name: Format Gleam project (without installing Erlang/OTP)
         run: |
-          cd test-projects/gleam_rebar3
-          rebar3 eunit
-        if: ${{matrix.combo.gleam-version}}
+          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
+          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}}
+    strategy:
+      fail-fast: false
+      matrix:
+        combo:
+          - otp-version: '24'
+            elixir-version: 'v1.12'
+            gleam-version: '0.23.0-rc1'
+            rebar3-version: 'nightly'
+            os: 'ubuntu-latest'
+    steps:
+      - uses: actions/checkout@v3
+      - name: Use erlef/setup-beam
+        id: setup-beam
+        uses: ./
+        with:
+          otp-version: ${{matrix.combo.otp-version}}
+          elixir-version: ${{matrix.combo.elixir-version}}
+          gleam-version: ${{matrix.combo.gleam-version}}
+          rebar3-version: ${{matrix.combo.rebar3-version}}
+      - run: env
+      - name: List environment variables
+        run: |
+          [ -n "${INSTALL_DIR_FOR_ELIXIR}" ] && echo "${INSTALL_DIR_FOR_ELIXIR}"
+          [ -n "${INSTALL_DIR_FOR_GLEAM}"  ] && echo "${INSTALL_DIR_FOR_GLEAM}"
+          [ -n "${INSTALL_DIR_FOR_OTP}"    ] && echo "${INSTALL_DIR_FOR_OTP}"
+          [ -n "${INSTALL_DIR_FOR_REBAR3}" ] && echo "${INSTALL_DIR_FOR_REBAR3}"

.github/workflows/update_3rd_party_licenses.sh

@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+
+set -eux
+
+git config user.name "GitHub Actions"
+git config user.email "actions@user.noreply.github.com"
+
+BRANCH=feature/3rd-party-licenses-update
+
+if git branch -a | grep "$BRANCH" > /dev/null; then
+    # already exists
+    exit
+fi
+
+git fetch origin
+git checkout -b "$BRANCH"
+npm run licenses
+
+if ! git diff --exit-code 1> /dev/null ; then
+    # there's stuff to push
+    git add 3RD_PARTY_LICENSES
+    git commit -m "Update 3rd party licenses"
+    git push origin "$BRANCH"
+
+    gh pr create --fill \
+        --title "Update 3rd party licenses (automation)" \
+        --body "This is an automated action to update the action's 3rd party licenses"
+fi

.github/workflows/update_3rd_party_licenses.yml

@@ -0,0 +1,21 @@
+---
+name: Update 3rd party licenses (automation)
+
+on:
+  schedule:
+    - cron: '0 12 * * *'
+  workflow_dispatch:
+
+jobs:
+  update:
+    name: Update 3rd party licenses
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
+        with:
+          node-version: '14'
+      - run:
+          ./.github/workflows/update_3rd_party_licenses.sh
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/windows.yml

@@ -6,8 +6,7 @@ on:
     branches:
       - main
   pull_request:
-    branches:
-      - main
+    types: [opened, synchronize]
 
 jobs:
   integration_test:
@@ -21,44 +20,39 @@ jobs:
       fail-fast: false
       matrix:
         combo:
+          - otp-version: '25'
+            rebar3-version: 'nightly'
+            os: 'windows-latest'
           - otp-version: '24.0.2'
             rebar3-version: '3.16'
             os: 'windows-2019'
+          - otp-version: '24.0.2'
+            rebar3-version: 'nightly'
+            os: 'windows-2019'
           - otp-version: '23.0'
             rebar3-version: '3.15'
             os: 'windows-2019'
-          - otp-version: '24.0.2'
-            rebar3-version: '3.16'
-            os: 'windows-2016'
-          - otp-version: '23.0'
-            rebar3-version: '3.15'
-            os: 'windows-2016'
-          - otp-version: '22.3'
-            rebar3-version: '3.15'
-            os: 'windows-2016'
-          - otp-version: '22.0'
-            rebar3-version: '3.15'
-            os: 'windows-2016'
-          - otp-version: '21.3'
-            rebar3-version: '3.15'
-            os: 'windows-2016'
-          - otp-version: '21.0'
-            rebar3-version: '3.15'
-            os: 'windows-2016'
           - elixir-version: 'v1.10'
             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: '0.16'
+          - gleam-version: '0.19.0-rc3'
             otp-version: '24'
-            rebar3-version: '3.16'
+            os: 'windows-latest'
+          - gleam-version: '0.23.0-rc1'
+            otp-version: '24'
+            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@v3
       - name: Use erlef/setup-beam
         id: setup-beam
         uses: ./
@@ -77,6 +71,17 @@ 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
@@ -85,17 +90,47 @@ 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 Gleam/rebar3 project tests
+      - name: Run escript
         run: |
-          cd test-projects/gleam_rebar3
-          rebar3 eunit
-        if: ${{matrix.combo.gleam-version}}
+          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}}
+    strategy:
+      fail-fast: false
+      matrix:
+        combo:
+          - otp-version: '24'
+            elixir-version: 'v1.12'
+            gleam-version: '0.23.0-rc1'
+            rebar3-version: 'nightly'
+            os: 'windows-latest'
+    steps:
+      - uses: actions/checkout@v3
+      - name: Use erlef/setup-beam
+        id: setup-beam
+        uses: ./
+        with:
+          otp-version: ${{matrix.combo.otp-version}}
+          elixir-version: ${{matrix.combo.elixir-version}}
+          gleam-version: ${{matrix.combo.gleam-version}}
+          rebar3-version: ${{matrix.combo.rebar3-version}}
+      - run: env
+      - name: List environment variables
+        run: |
+          [ -n "${INSTALL_DIR_FOR_ELIXIR}" ] && echo "${INSTALL_DIR_FOR_ELIXIR}"
+          [ -n "${INSTALL_DIR_FOR_GLEAM}"  ] && echo "${INSTALL_DIR_FOR_GLEAM}"
+          [ -n "${INSTALL_DIR_FOR_OTP}"    ] && echo "${INSTALL_DIR_FOR_OTP}"
+          [ -n "${INSTALL_DIR_FOR_REBAR3}" ] && echo "${INSTALL_DIR_FOR_REBAR3}"
+        shell: bash

.gitignore

@@ -1,2 +1,3 @@
 node_modules/**
 dist/.github/workflows
+test/.tool-versions

CONTRIBUTING.md

@@ -25,6 +25,7 @@ Here are a few things you can do that will increase the likelihood of your pull
 - Write tests.
 - Keep your change as focused as possible. If there are multiple changes you would like to make that are not dependent upon each other, consider submitting them as separate pull requests.
 - 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
 
 ## Resources
 

MATCHER_NOTICE.md

@@ -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):
 

README.md

@@ -1,29 +1,34 @@
 <!-- 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:
 
-- installing Erlang/OTP
-- optionally, installing Elixir
-- optionally, installing Gleam
-- optionally, installing `rebar3`
-- optionally, installing `hex`
+- installing [Erlang/OTP](https://www.erlang.org/)
+- optionally, installing [Elixir](https://elixir-lang.org/)
+- 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.
+**Note**: currently, this action only supports Actions' `ubuntu-` and `windows-` runtimes.
 
 ## Usage
 
 See [action.yml](action.yml) for the action's specification.
 
-**Note**: The Erlang/OTP release version specification is [relatively
+**Note**: the Erlang/OTP release version specification is [relatively
 complex](http://erlang.org/doc/system_principles/versions.html#version-scheme).
 For best results, we recommend specifying exact
 versions, and setting option `version-type` to `strict`.
@@ -46,11 +51,11 @@ and Erlang/OTP.
 
 | Operating system | Erlang/OTP | Status
 |-                 |-           |-
-| ubuntu-16.04     | 17 - 24    | ✅
-| ubuntu-18.04     | 17 - 24    | ✅
-| ubuntu-20.04     | 20 - 24    | ✅
-| windows-2016     | 21* - 24   | ✅
-| windows-2019     | 21* - 24   | ✅
+| ubuntu-18.04     | 17 - 25    | ✅
+| ubuntu-20.04     | 20 - 25    | ✅
+| ubuntu-22.04     | 24.2 - 25  | ✅
+| windows-2019     | 21* - 25   | ✅
+| windows-2022     | 21* - 25   | ✅
 
 **Note** *: prior to 23, Windows builds are only available for minor versions, e.g. 21.0, 21.3, 22.0, etc.
 
@@ -61,11 +66,11 @@ uses that to download assets:
 
 | ImageOS  | Operating system
 |-         |-
-| ubuntu16 | ubuntu-16.04
 | ubuntu18 | ubuntu-18.04
 | ubuntu20 | ubuntu-20.04
-| win16    | windows-2016
+| ubuntu22 | ubuntu-22.04
 | win19    | windows-2019
+| win22    | windows-2022
 
 as per the following example:
 
@@ -78,11 +83,36 @@ jobs:
     env:
       ImageOS: ubuntu20 # equivalent to runs-on ubuntu-20.04
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: erlef/setup-beam@v1
         ...
 ```
 
+### 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
@@ -91,14 +121,14 @@ 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@v3
       - uses: erlef/setup-beam@v1
         with:
           otp-version: ${{matrix.otp}}
@@ -115,14 +145,14 @@ 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@v3
       - uses: erlef/setup-beam@v1
         with:
           otp-version: ${{matrix.otp}}
@@ -138,9 +168,9 @@ on: push
 
 jobs:
   test:
-    runs-on: windows-2019
+    runs-on: windows-2022
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: erlef/setup-beam@v1
         with:
           otp-version: '24'
@@ -148,7 +178,49 @@ jobs:
       - run: rebar3 ct
 ```
 
-### Example (Gleam + `rebar3`, on Ubuntu)
+### Example (Gleam on Ubuntu)
+
+```yaml
+# create this in .github/workflows/ci.yml
+on: push
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: erlef/setup-beam@v1
+        with:
+          otp-version: '24'
+          gleam-version: '0.23.0-rc1'
+      - run: gleam test
+```
+
+### Example (Gleam on Ubuntu without OTP)
+
+```yaml
+# create this in .github/workflows/ci.yml
+on: push
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: erlef/setup-beam@v1
+        with:
+          otp-version: false
+          gleam-version: '0.23.0-rc1'
+      - run: gleam check
+```
+
+**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
@@ -161,15 +233,45 @@ jobs:
       - uses: actions/checkout@v2
       - uses: erlef/setup-beam@v1
         with:
-          otp-version: '24'
-          gleam-version: '0.16'
-          rebar3-version: '3.16'
-      - run: rebar3 ct
+          otp-version: '25'
+          # 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@v2
+      - uses: erlef/setup-beam@v1
+        with:
+          otp-version: '25'
+          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
+environment variables:
+
+- `INSTALL_DIR_FOR_OTP`: base folder for Erlang/OTP
+- `INSTALL_DIR_FOR_ELIXIR`: base folder for Elixir
+- `INSTALL_DIR_FOR_GLEAM`: base folder for Gleam
+- `INSTALL_DIR_FOR_REBAR3`: base folder for `rebar3`
+
 ## Elixir Problem Matchers
 
-The Elixir Problem Matchers in this repository are adapted from [here](https://github.com/fr1zle/vscode-elixir/blob/45eddb589acd7ac98e0c7305d1c2b24668ca709a/package.json#L70-L118). See [MATCHER_NOTICE](MATCHER_NOTICE.md) for license details.
+The Elixir Problem Matchers in this repository are adapted from
+[here](https://github.com/fr1zle/vscode-elixir/blob/45eddb589acd7ac98e0c7305d1c2b24668ca709a/package.json#L70-L118).
+See [MATCHER_NOTICE](MATCHER_NOTICE.md) for license details.
 
 ## Action versioning
 
@@ -179,9 +281,9 @@ The Elixir Problem Matchers in this repository are adapted from [here](https://g
 - `@v1.8`: the latest in the `1.8.z` series (this tag is movable),
 - `@v1.8.0`: release `1.8.0` (this tag is not movable).
 
-To prevent issues in CI (unless you're OK with potential incompatibility between versions - we
-make real a effort to not introduce those without bumping major) we suggest you to use `@vx.y.z`,
-whenever possible.
+We make a real effort to not introduce incompatibilities without changing the major
+version number. To be extra safe against changes causing issues in your CI you should specify
+an exact version with `@vx.y.z`.
 
 ## License
 

action.yml

@@ -8,24 +8,47 @@ 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
   elixir-version:
     description: Version range or exact version of Elixir to use
-  otp-version:
-    description: Version range or exact version of Erlang/OTP to use
   gleam-version:
     description: Version range or exact version of Gleam to use
   install-hex:
-    description: Whether to install Hex (with Mix)
+    description: Whether to install Hex (with mix local.hex
+      when installing Elixir)
     default: true
   install-rebar:
-    description: Whether to install Rebar (with Mix)
+    description: Whether to install Rebar (with mix local.rebar
+      when installing Elixir)
     default: true
   rebar3-version:
-    description: Version range or exact version of rebar3 to use
+    description: Version range or exact version of rebar3 to use (or nightly)
   version-type:
     description: strict means the versions are take as-are; loose means we try
       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)
+    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
@@ -36,5 +59,5 @@ outputs:
   rebar3-version:
     description: Exact version of rebar3 that was installed
 runs:
-  using: node12
+  using: node16
   main: dist/index.js

dist/.github/elixir-matchers.json

@@ -57,22 +57,6 @@
           "column": 3
         }
       ]
-    },
-    {
-      "owner": "elixir-dialyzerOutputDefault",
-      "severity": "warning",
-      "pattern": [
-        {
-          "regexp": "^(.*):(\\d+):(.*)",
-          "file": 1,
-          "line": 2,
-          "code": 3
-        },
-        {
-          "regexp": "^(.*)$",
-          "message": 1
-        }
-      ]
     }
   ]
 }

dist/elixir-matchers.json

@@ -57,22 +57,6 @@
           "column": 3
         }
       ]
-    },
-    {
-      "owner": "elixir-dialyzerOutputDefault",
-      "severity": "warning",
-      "pattern": [
-        {
-          "regexp": "^(.*):(\\d+):(.*)",
-          "file": 1,
-          "line": 2,
-          "code": 3
-        },
-        {
-          "regexp": "^(.*)$",
-          "message": 1
-        }
-      ]
     }
   ]
 }

dist/install-elixir.ps1

@@ -1,19 +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

dist/install-elixir.sh

@@ -1,16 +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 -d "${DIR_FOR_BIN}" "${FILE_OUTPUT}"
-echo "Installed Elixir version follows"
-${DIR_FOR_BIN}/bin/elixir -v

dist/install-gleam.ps1

@@ -1,19 +1,37 @@
-param([Parameter(Mandatory=$true)][string]$VSN)
+param([Parameter(Mandatory=$true)][string]${VSN})
 
 $ErrorActionPreference="Stop"
 
-Set-Location $Env:RUNNER_TEMP
+Set-Location ${Env:RUNNER_TEMP}
 
-$FILE_INPUT="gleam-${VSN}-windows-64bit.zip"
 $FILE_OUTPUT="gleam.zip"
-$DIR_FOR_BIN=".setup-beam/gleam/bin"
+$DIR_FOR_BIN=".setup-beam/gleam"
+
+function Version-Greater-Than([string]${THIS_ONE}, [string]${REFERENCE}) {
+  $THIS_ONE=$THIS_ONE.replace('v', '')
+  $THIS_ONE=$THIS_ONE.replace('rc', '')
+  $THIS_ONE=$THIS_ONE.replace('-', '')
+  return [version]${THIS_ONE} -gt [version]${REFERENCE}
+}
+
+function Uses-LLVM-Triplets([string]${THIS_VSN}) {
+  return "${THIS_VSN}" -eq "nightly" -or (Version-Greater-Than "${THIS_VSN}" "0.22.1")
+}
+
+if (Uses-LLVM-Triplets "$VSN") {
+   $FILE_INPUT="gleam-${VSN}-x86_64-pc-windows-msvc.zip"
+} else {
+   $FILE_INPUT="gleam-${VSN}-windows-64bit.zip"
+}
 
 $ProgressPreference="SilentlyContinue"
-Invoke-WebRequest "https://github.com/gleam-lang/gleam/releases/download/${VSN}/${FILE_INPUT}" -OutFile "$FILE_OUTPUT"
+Invoke-WebRequest "https://github.com/gleam-lang/gleam/releases/download/${VSN}/${FILE_INPUT}" -OutFile "${FILE_OUTPUT}"
 $ProgressPreference="Continue"
-New-Item "$DIR_FOR_BIN" -ItemType Directory | Out-Null
+New-Item "${DIR_FOR_BIN}/bin" -ItemType Directory | Out-Null
 $ProgressPreference="SilentlyContinue"
-Expand-Archive -DestinationPath "${DIR_FOR_BIN}" -Path "${FILE_OUTPUT}"
+Expand-Archive -DestinationPath "${DIR_FOR_BIN}/bin" -Path "${FILE_OUTPUT}"
 $ProgressPreference="Continue"
 Write-Output "Installed Gleam version follows"
-& "$DIR_FOR_BIN/gleam" "--version" | Write-Output
+& "${DIR_FOR_BIN}/bin/gleam" "--version" | Write-Output
+
+"INSTALL_DIR_FOR_GLEAM=${Env:RUNNER_TEMP}/${DIR_FOR_BIN}" | Out-File -FilePath ${Env:GITHUB_ENV} -Encoding utf8 -Append

dist/install-gleam.sh

@@ -2,16 +2,34 @@
 
 set -eo pipefail
 
-cd "$RUNNER_TEMP"
+cd "${RUNNER_TEMP}"
 
-VSN=${1}
-FILE_INPUT=gleam-${VSN}-linux-amd64.tar.gz
+VSN="$1"
 FILE_OUTPUT=gleam.tar.gz
-DIR_FOR_BIN=.setup-beam/gleam/bin
+DIR_FOR_BIN=.setup-beam/gleam
+
+version_gt() {
+  REFERENCE=$1
+  test "$(printf '%s\n' "$@" | sort -V | head -n 1)" != "$REFERENCE"
+}
+
+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}"
-tar zxf "${FILE_OUTPUT}" -C "${DIR_FOR_BIN}"
+mkdir -p "${DIR_FOR_BIN}/bin"
+tar zxf "${FILE_OUTPUT}" -C "${DIR_FOR_BIN}/bin"
 
 echo "Installed Gleam version follows"
-${DIR_FOR_BIN}/gleam --version
+${DIR_FOR_BIN}/bin/gleam --version
+
+echo "INSTALL_DIR_FOR_GLEAM=${RUNNER_TEMP}/${DIR_FOR_BIN}" >> "${GITHUB_ENV}"

dist/install-otp.ps1

@@ -1,20 +0,0 @@
-param([Parameter(Mandatory=$true)][string]$VSN)
-
-$ErrorActionPreference="Stop"
-
-Set-Location $Env:RUNNER_TEMP
-
-$FILE_OUTPUT="otp.exe"
-$DIR_FOR_BIN=".setup-beam/otp"
-
-$ProgressPreference="SilentlyContinue"
-Invoke-WebRequest "https://github.com/erlang/otp/releases/download/OTP-$VSN/otp_win64_$VSN.exe" -OutFile "$FILE_OUTPUT"
-$ProgressPreference="Continue"
-New-Item "$DIR_FOR_BIN" -ItemType Directory | Out-Null
-Move-Item "$FILE_OUTPUT" "$DIR_FOR_BIN"
-Start-Process "./$DIR_FOR_BIN/$FILE_OUTPUT" /S -Wait
-$ErlExec = Get-ChildItem -Path "C:/Program Files/" -Recurse -Depth 2 -Filter 'erl.exe' -Name | ForEach-Object { Write-Output "C:/Program Files/$_" }
-$ErlPath = Split-Path -Path "$ErlExec"
-Write-Output "$ErlPath" | Out-File -FilePath otp_path.txt -Encoding utf8 -NoNewline
-Write-Output "Installed Erlang/OTP version follows"
-& "$ErlPath/erl.exe" "+V" | Write-Output

dist/install-otp.sh

@@ -1,18 +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

dist/install-rebar3.ps1

@@ -1,21 +1,32 @@
-param([Parameter(Mandatory=$true)][string]$VSN)
+param([Parameter(Mandatory=$true)][string]${VSN})
 
 $ErrorActionPreference="Stop"
 
-Set-Location $Env:RUNNER_TEMP
+Set-Location ${Env:RUNNER_TEMP}
 
 $FILE_INPUT="rebar3"
 $FILE_OUTPUT="rebar3"
 $FILE_OUTPUT_PS1="rebar3.ps1"
+$FILE_OUTPUT_CMD="rebar3.cmd"
 $DIR_FOR_BIN=".setup-beam/rebar3"
 
 $ProgressPreference="SilentlyContinue"
-Invoke-WebRequest "https://github.com/erlang/rebar3/releases/download/${VSN}/${FILE_INPUT}" -OutFile "$FILE_OUTPUT"
+$REBAR3_TARGET="https://github.com/erlang/rebar3/releases/download/${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" "$DIR_FOR_BIN/bin"
-Write-Output "Installed rebar3 version follows"
-& "$DIR_FOR_BIN/bin/rebar3" "version" | Write-Output
+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
+Write-Output "@echo off`r`nescript.exe ${PWD}/${DIR_FOR_BIN}/bin/${FILE_OUTPUT} %*" | Out-File -FilePath "${FILE_OUTPUT_CMD}" -Encoding utf8 -Append
+Move-Item "${FILE_OUTPUT_PS1}" "${DIR_FOR_BIN}/bin"
+Move-Item "${FILE_OUTPUT_CMD}" "${DIR_FOR_BIN}/bin"
+Write-Output "Installed rebar3 version${REBAR3_NIGHTLY} follows"
+& "${DIR_FOR_BIN}/bin/rebar3.cmd" "version" | Write-Output
+
+"INSTALL_DIR_FOR_REBAR3=${Env:RUNNER_TEMP}/${DIR_FOR_BIN}" | Out-File -FilePath ${Env:GITHUB_ENV} -Encoding utf8 -Append

dist/install-rebar3.sh

@@ -2,16 +2,24 @@
 
 set -eo pipefail
 
-cd "$RUNNER_TEMP"
+cd "${RUNNER_TEMP}"
 
 VSN=${1}
 FILE_INPUT=rebar3
 FILE_OUTPUT=rebar3
 DIR_FOR_BIN=.setup-beam/rebar3
 
-wget -q -O "${FILE_OUTPUT}" "https://github.com/erlang/rebar3/releases/download/${VSN}/${FILE_INPUT}"
+REBAR3_TARGET="https://github.com/erlang/rebar3/releases/download/${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 follows"
+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}"

dist/licenses.txt

@@ -1,82 +0,0 @@
-@actions/core
-MIT
-The MIT License (MIT)
-
-Copyright 2019 GitHub
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-@actions/exec
-MIT
-
-@actions/io
-MIT
-The MIT License (MIT)
-
-Copyright 2019 GitHub
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-lru-cache
-ISC
-The ISC License
-
-Copyright (c) Isaac Z. Schlueter and Contributors
-
-Permission to use, copy, modify, and/or distribute this software for any
-purpose with or without fee is hereby granted, provided that the above
-copyright notice and this permission notice appear in all copies.
-
-THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
-IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
-
-semver
-ISC
-The ISC License
-
-Copyright (c) Isaac Z. Schlueter and Contributors
-
-Permission to use, copy, modify, and/or distribute this software for any
-purpose with or without fee is hereby granted, provided that the above
-copyright notice and this permission notice appear in all copies.
-
-THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
-IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
-
-yallist
-ISC
-The ISC License
-
-Copyright (c) Isaac Z. Schlueter and Contributors
-
-Permission to use, copy, modify, and/or distribute this software for any
-purpose with or without fee is hereby granted, provided that the above
-copyright notice and this permission notice appear in all copies.
-
-THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
-IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

matchers/elixir-matchers.json

@@ -0,0 +1,62 @@
+{
+  "problemMatcher": [
+    {
+      "owner": "elixir-mixCompileError",
+      "severity": "error",
+      "pattern": [
+        {
+          "regexp": "^\\*\\* \\((\\w+)\\) (.*):(\\d+): (.*)$",
+          "file": 2,
+          "line": 3,
+          "message": 0
+        }
+      ]
+    },
+    {
+      "owner": "elixir-mixCompileWarning",
+      "severity": "warning",
+      "pattern": [
+        {
+          "regexp": "^warning: (.*)$",
+          "message": 1
+        },
+        {
+          "regexp": "^  (.*):(\\d+).*$",
+          "file": 1,
+          "line": 2
+        }
+      ]
+    },
+    {
+      "owner": "elixir-mixTestFailure",
+      "severity": "error",
+      "pattern": [
+        {
+          "regexp": "^\\s*\\d+\\) (.*)$",
+          "message": 1
+        },
+        {
+          "regexp": "^\\s*(.*):(\\d+)$",
+          "file": 1,
+          "line": 2
+        }
+      ]
+    },
+    {
+      "owner": "elixir-credoOutputDefault",
+      "severity": "warning",
+      "pattern": [
+        {
+          "regexp": "^\u2503\\s\\[\\w\\]\\s[\u2191|\u2197|\u2192|\u2198|\u2193]\\s(.*)$",
+          "message": 1
+        },
+        {
+          "regexp": "^\u2503\\s{7}(.*):(\\d+):(\\d+)\\s.*$",
+          "file": 1,
+          "line": 2,
+          "column": 3
+        }
+      ]
+    }
+  ]
+}

package.json

@@ -3,14 +3,15 @@
   "license": "MIT",
   "private": true,
   "scripts": {
-    "build": "ncc build src/setup-beam.js --no-cache --license licenses.txt",
-    "format": "prettier src/**/*.js --write && prettier __tests__/**/*.js --write",
-    "jslint": "eslint src/**/*.js && eslint __tests__/**/*.js",
+    "build": "ncc build src/setup-beam.js --no-cache",
+    "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",
-    "test": "node __tests__/setup-beam.test.js && node ./__tests__/problem-matchers.test.js",
-    "yamllint": "yamllint .github/workflows/**.yml && yamllint .*.yml && yamllint *.yml"
+    "shellcheck": "shellcheck src/install-*.sh .github/workflows/*.sh",
+    "test": "node test/setup-beam.test.js && node ./test/problem-matchers.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": {
@@ -18,22 +19,27 @@
     }
   },
   "dependencies": {
-    "@actions/core": "1.2.6",
-    "@actions/exec": "1.0.4",
-    "semver": "7.3.4"
+    "@actions/core": "1.10.0",
+    "@actions/exec": "1.1.1",
+    "@actions/http-client": "2.1.0",
+    "@actions/tool-cache": "^2.0.1",
+    "semver": "7.3.8"
   },
   "devDependencies": {
-    "@vercel/ncc": "0.27.0",
-    "eslint": "7.22.0",
-    "eslint-config-airbnb": "v18.2.1",
-    "husky": "5.2.0",
-    "markdownlint": "0.23.1",
-    "prettier": "2.2.1",
-    "shellcheck": "1.0.0",
-    "yaml-lint": "1.2.4",
-    "yarn": "1.22.10"
+    "@vercel/ncc": "0.34.0",
+    "eslint": "8.25.0",
+    "eslint-config-airbnb": "19.0.4",
+    "eslint-plugin-import": "2.26.0",
+    "eslint-plugin-jsx-a11y": "6.6.1",
+    "eslint-plugin-react": "7.31.10",
+    "husky": "8.0.1",
+    "markdownlint": "0.26.2",
+    "prettier": "2.7.1",
+    "shellcheck": "1.1.0",
+    "yaml-lint": "1.7.0",
+    "yarn": "1.22.19"
   },
   "engines": {
-    "node": ">=12"
+    "node": ">=16"
   }
 }

src/install-elixir.ps1

@@ -1,19 +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

src/install-elixir.sh

@@ -1,16 +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 -d "${DIR_FOR_BIN}" "${FILE_OUTPUT}"
-echo "Installed Elixir version follows"
-${DIR_FOR_BIN}/bin/elixir -v

src/install-gleam.ps1

@@ -1,19 +1,37 @@
-param([Parameter(Mandatory=$true)][string]$VSN)
+param([Parameter(Mandatory=$true)][string]${VSN})
 
 $ErrorActionPreference="Stop"
 
-Set-Location $Env:RUNNER_TEMP
+Set-Location ${Env:RUNNER_TEMP}
 
-$FILE_INPUT="gleam-${VSN}-windows-64bit.zip"
 $FILE_OUTPUT="gleam.zip"
-$DIR_FOR_BIN=".setup-beam/gleam/bin"
+$DIR_FOR_BIN=".setup-beam/gleam"
+
+function Version-Greater-Than([string]${THIS_ONE}, [string]${REFERENCE}) {
+  $THIS_ONE=$THIS_ONE.replace('v', '')
+  $THIS_ONE=$THIS_ONE.replace('rc', '')
+  $THIS_ONE=$THIS_ONE.replace('-', '')
+  return [version]${THIS_ONE} -gt [version]${REFERENCE}
+}
+
+function Uses-LLVM-Triplets([string]${THIS_VSN}) {
+  return "${THIS_VSN}" -eq "nightly" -or (Version-Greater-Than "${THIS_VSN}" "0.22.1")
+}
+
+if (Uses-LLVM-Triplets "$VSN") {
+   $FILE_INPUT="gleam-${VSN}-x86_64-pc-windows-msvc.zip"
+} else {
+   $FILE_INPUT="gleam-${VSN}-windows-64bit.zip"
+}
 
 $ProgressPreference="SilentlyContinue"
-Invoke-WebRequest "https://github.com/gleam-lang/gleam/releases/download/${VSN}/${FILE_INPUT}" -OutFile "$FILE_OUTPUT"
+Invoke-WebRequest "https://github.com/gleam-lang/gleam/releases/download/${VSN}/${FILE_INPUT}" -OutFile "${FILE_OUTPUT}"
 $ProgressPreference="Continue"
-New-Item "$DIR_FOR_BIN" -ItemType Directory | Out-Null
+New-Item "${DIR_FOR_BIN}/bin" -ItemType Directory | Out-Null
 $ProgressPreference="SilentlyContinue"
-Expand-Archive -DestinationPath "${DIR_FOR_BIN}" -Path "${FILE_OUTPUT}"
+Expand-Archive -DestinationPath "${DIR_FOR_BIN}/bin" -Path "${FILE_OUTPUT}"
 $ProgressPreference="Continue"
 Write-Output "Installed Gleam version follows"
-& "$DIR_FOR_BIN/gleam" "--version" | Write-Output
+& "${DIR_FOR_BIN}/bin/gleam" "--version" | Write-Output
+
+"INSTALL_DIR_FOR_GLEAM=${Env:RUNNER_TEMP}/${DIR_FOR_BIN}" | Out-File -FilePath ${Env:GITHUB_ENV} -Encoding utf8 -Append

src/install-gleam.sh

@@ -2,16 +2,34 @@
 
 set -eo pipefail
 
-cd "$RUNNER_TEMP"
+cd "${RUNNER_TEMP}"
 
-VSN=${1}
-FILE_INPUT=gleam-${VSN}-linux-amd64.tar.gz
+VSN="$1"
 FILE_OUTPUT=gleam.tar.gz
-DIR_FOR_BIN=.setup-beam/gleam/bin
+DIR_FOR_BIN=.setup-beam/gleam
+
+version_gt() {
+  REFERENCE=$1
+  test "$(printf '%s\n' "$@" | sort -V | head -n 1)" != "$REFERENCE"
+}
+
+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}"
-tar zxf "${FILE_OUTPUT}" -C "${DIR_FOR_BIN}"
+mkdir -p "${DIR_FOR_BIN}/bin"
+tar zxf "${FILE_OUTPUT}" -C "${DIR_FOR_BIN}/bin"
 
 echo "Installed Gleam version follows"
-${DIR_FOR_BIN}/gleam --version
+${DIR_FOR_BIN}/bin/gleam --version
+
+echo "INSTALL_DIR_FOR_GLEAM=${RUNNER_TEMP}/${DIR_FOR_BIN}" >> "${GITHUB_ENV}"

src/install-otp.ps1

@@ -1,20 +0,0 @@
-param([Parameter(Mandatory=$true)][string]$VSN)
-
-$ErrorActionPreference="Stop"
-
-Set-Location $Env:RUNNER_TEMP
-
-$FILE_OUTPUT="otp.exe"
-$DIR_FOR_BIN=".setup-beam/otp"
-
-$ProgressPreference="SilentlyContinue"
-Invoke-WebRequest "https://github.com/erlang/otp/releases/download/OTP-$VSN/otp_win64_$VSN.exe" -OutFile "$FILE_OUTPUT"
-$ProgressPreference="Continue"
-New-Item "$DIR_FOR_BIN" -ItemType Directory | Out-Null
-Move-Item "$FILE_OUTPUT" "$DIR_FOR_BIN"
-Start-Process "./$DIR_FOR_BIN/$FILE_OUTPUT" /S -Wait
-$ErlExec = Get-ChildItem -Path "C:/Program Files/" -Recurse -Depth 2 -Filter 'erl.exe' -Name | ForEach-Object { Write-Output "C:/Program Files/$_" }
-$ErlPath = Split-Path -Path "$ErlExec"
-Write-Output "$ErlPath" | Out-File -FilePath otp_path.txt -Encoding utf8 -NoNewline
-Write-Output "Installed Erlang/OTP version follows"
-& "$ErlPath/erl.exe" "+V" | Write-Output

src/install-otp.sh

@@ -1,18 +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

src/install-rebar3.ps1

@@ -1,21 +1,32 @@
-param([Parameter(Mandatory=$true)][string]$VSN)
+param([Parameter(Mandatory=$true)][string]${VSN})
 
 $ErrorActionPreference="Stop"
 
-Set-Location $Env:RUNNER_TEMP
+Set-Location ${Env:RUNNER_TEMP}
 
 $FILE_INPUT="rebar3"
 $FILE_OUTPUT="rebar3"
 $FILE_OUTPUT_PS1="rebar3.ps1"
+$FILE_OUTPUT_CMD="rebar3.cmd"
 $DIR_FOR_BIN=".setup-beam/rebar3"
 
 $ProgressPreference="SilentlyContinue"
-Invoke-WebRequest "https://github.com/erlang/rebar3/releases/download/${VSN}/${FILE_INPUT}" -OutFile "$FILE_OUTPUT"
+$REBAR3_TARGET="https://github.com/erlang/rebar3/releases/download/${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" "$DIR_FOR_BIN/bin"
-Write-Output "Installed rebar3 version follows"
-& "$DIR_FOR_BIN/bin/rebar3" "version" | Write-Output
+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
+Write-Output "@echo off`r`nescript.exe ${PWD}/${DIR_FOR_BIN}/bin/${FILE_OUTPUT} %*" | Out-File -FilePath "${FILE_OUTPUT_CMD}" -Encoding utf8 -Append
+Move-Item "${FILE_OUTPUT_PS1}" "${DIR_FOR_BIN}/bin"
+Move-Item "${FILE_OUTPUT_CMD}" "${DIR_FOR_BIN}/bin"
+Write-Output "Installed rebar3 version${REBAR3_NIGHTLY} follows"
+& "${DIR_FOR_BIN}/bin/rebar3.cmd" "version" | Write-Output
+
+"INSTALL_DIR_FOR_REBAR3=${Env:RUNNER_TEMP}/${DIR_FOR_BIN}" | Out-File -FilePath ${Env:GITHUB_ENV} -Encoding utf8 -Append

src/install-rebar3.sh

@@ -2,16 +2,24 @@
 
 set -eo pipefail
 
-cd "$RUNNER_TEMP"
+cd "${RUNNER_TEMP}"
 
 VSN=${1}
 FILE_INPUT=rebar3
 FILE_OUTPUT=rebar3
 DIR_FOR_BIN=.setup-beam/rebar3
 
-wget -q -O "${FILE_OUTPUT}" "https://github.com/erlang/rebar3/releases/download/${VSN}/${FILE_INPUT}"
+REBAR3_TARGET="https://github.com/erlang/rebar3/releases/download/${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 follows"
+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}"

src/installer.js

@@ -1,19 +1,76 @@
+const core = require('@actions/core')
 const { exec } = require('@actions/exec')
+const tc = require('@actions/tool-cache')
 const path = require('path')
+const fs = require('fs')
+const os = require('os')
 
 /**
  * Install Erlang/OTP.
  *
  * @param {string} osVersion
  * @param {string} otpVersion
+ * @param {string[]} hexMirrors
  */
-async function installOTP(osVersion, otpVersion) {
+async function installOTP(osVersion, otpVersion, hexMirrors) {
+  if (hexMirrors.length === 0) {
+    throw new Error(
+      `Could not install Erlang/OTP ${otpVersion} from any hex.pm mirror`,
+    )
+  }
+
+  const [hexMirror, ...hexMirrorsT] = hexMirrors
+  const fullVersion = `${osVersion}/${otpVersion}`
+  let cachedPath = tc.find('otp', fullVersion)
   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}`)
+
+  try {
+    if (OS === 'linux') {
+      if (!cachedPath) {
+        const tarPath = await tc.downloadTool(
+          `https://builds.hex.pm/builds/otp/${fullVersion}.tar.gz`,
+        )
+        const extractPath = await tc.extractTar(tarPath, undefined, [
+          'zx',
+          '--strip-components=1',
+        ])
+        cachedPath = await tc.cacheDir(extractPath, 'otp', fullVersion)
+      }
+
+      await exec(path.join(cachedPath, 'Install'), ['-minimal', cachedPath])
+
+      const otpPath = path.join(cachedPath, 'bin')
+
+      core.addPath(otpPath)
+      core.exportVariable('INSTALL_DIR_FOR_OTP', cachedPath)
+
+      core.info('Installed Erlang/OTP version')
+      await exec(path.join(otpPath, 'erl'), ['-version'])
+    } else if (OS === 'win32') {
+      if (!cachedPath) {
+        const exePath = await tc.downloadTool(
+          'https://github.com/erlang/otp/releases/download/' +
+            `OTP-${otpVersion}/otp_win64_${otpVersion}.exe`,
+        )
+        cachedPath = await tc.cacheFile(exePath, 'otp.exe', 'otp', fullVersion)
+      }
+
+      const otpDir = path.join(process.env.RUNNER_TEMP, '.setup-beam', 'otp')
+      const otpPath = path.join(otpDir, 'bin')
+
+      await fs.promises.mkdir(otpDir, { recursive: true })
+      await exec(path.join(cachedPath, 'otp.exe'), ['/S', `/D=${otpDir}`])
+
+      core.addPath(otpPath)
+      core.exportVariable('INSTALL_DIR_FOR_OTP', otpDir)
+
+      core.info('Installed Erlang/OTP version')
+      await exec(path.join(otpPath, 'erl'), ['+V'])
+    }
+  } catch (err) {
+    core.info(`Install OTP failed for mirror ${hexMirror}`)
+    core.info(`${err}\n${err.stack}`)
+    await installOTP(osVersion, otpVersion, hexMirrorsT)
   }
 }
 
@@ -21,14 +78,42 @@ async function installOTP(osVersion, otpVersion) {
  * Install Elixir.
  *
  * @param {string} elixirVersion
+ * @param {string[]} hexMirrors
  */
-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}`)
+async function installElixir(elixirVersion, hexMirrors) {
+  if (hexMirrors.length === 0) {
+    throw new Error(
+      `Could not install Elixir ${elixirVersion} from any hex.pm mirror`,
+    )
+  }
+  const [hexMirror, ...hexMirrorsT] = hexMirrors
+
+  try {
+    let cachedPath = tc.find('elixir', elixirVersion)
+
+    if (!cachedPath) {
+      const zipPath = await tc.downloadTool(
+        `${hexMirror}/builds/elixir/${elixirVersion}.zip`,
+      )
+      const extractPath = await tc.extractZip(zipPath)
+      cachedPath = await tc.cacheDir(extractPath, 'elixir', elixirVersion)
+    }
+
+    const elixirPath = path.join(cachedPath, 'bin')
+    const escriptsPath = path.join(os.homedir(), '.mix', 'escripts')
+
+    core.addPath(elixirPath)
+    core.addPath(escriptsPath)
+    core.exportVariable('INSTALL_DIR_FOR_ELIXIR', cachedPath)
+
+    core.info('Installed Elixir version')
+    await exec(path.join(elixirPath, 'elixir'), ['-v'])
+
+    await fs.promises.mkdir(escriptsPath, { recursive: true })
+  } catch (err) {
+    core.info(`Elixir install failed for mirror ${hexMirror}`)
+    core.info(`${err}\n${err.stack}`)
+    await installElixir(elixirVersion, hexMirrorsT)
   }
 }
 

src/setup-beam.js

@@ -1,8 +1,8 @@
 const core = require('@actions/core')
 const { exec } = require('@actions/exec')
+const http = require('@actions/http-client')
 const path = require('path')
 const semver = require('semver')
-const https = require('https')
 const fs = require('fs')
 const installer = require('./installer')
 
@@ -13,65 +13,81 @@ main().catch((err) => {
 async function main() {
   installer.checkPlatform()
 
-  const osVersion = getRunnerOSVersion()
-  const otpSpec = core.getInput('otp-version', { required: true })
-  const otpVersion = await installOTP(otpSpec, osVersion)
-
-  const elixirSpec = core.getInput('elixir-version', { required: false })
-  const elixirInstalled = await maybeInstallElixir(elixirSpec, otpVersion)
-  if (elixirInstalled === true) {
-    const shouldMixRebar = core.getInput('install-rebar', {
-      required: false,
-    })
-    await mix(shouldMixRebar, 'rebar')
-    const shouldMixHex = core.getInput('install-hex', {
-      required: false,
-    })
-    await mix(shouldMixHex, 'hex')
+  const versionFilePath = getInput('version-file', false)
+  let versions
+  if (versionFilePath) {
+    if (!isStrictVersion()) {
+      throw new Error(
+        "you have to set version-type=strict if you're using version-file",
+      )
+    }
+    versions = parseVersionFile(versionFilePath)
   }
 
-  const gleamSpec = core.getInput('gleam-version', { required: false })
-  await maybeInstallGleam(gleamSpec)
+  const osVersion = getRunnerOSVersion()
+  const otpSpec = getInput('otp-version', true, 'erlang', versions)
+  const elixirSpec = getInput('elixir-version', false, 'elixir', versions)
+  const gleamSpec = getInput('gleam-version', false, 'gleam', versions)
+  const rebar3Spec = getInput('rebar3-version', false, 'rebar', versions)
+  const hexMirrors = core.getMultilineInput('hexpm-mirrors', {
+    required: false,
+  })
 
-  const rebar3Spec = core.getInput('rebar3-version', { required: false })
+  if (otpSpec !== 'false') {
+    await installOTP(otpSpec, osVersion, hexMirrors)
+    const elixirInstalled = await maybeInstallElixir(
+      elixirSpec,
+      otpSpec,
+      hexMirrors,
+    )
+
+    if (elixirInstalled === true) {
+      const shouldMixRebar = getInput('install-rebar', false)
+      await mix(shouldMixRebar, 'rebar', hexMirrors)
+      const shouldMixHex = getInput('install-hex', false)
+      await mix(shouldMixHex, 'hex', hexMirrors)
+    }
+  } else if (!gleamSpec) {
+    throw new Error('otp-version=false is only available when installing Gleam')
+  }
+
+  await maybeInstallGleam(gleamSpec)
   await maybeInstallRebar3(rebar3Spec)
 }
 
-async function installOTP(otpSpec, osVersion) {
-  const otpVersion = await getOTPVersion(otpSpec, osVersion)
-  console.log(
-    `##[group]Installing Erlang/OTP ${otpVersion} - built on ${osVersion}`,
-  )
-  await installer.installOTP(osVersion, otpVersion)
+async function installOTP(otpSpec, osVersion, hexMirrors) {
+  const otpVersion = await getOTPVersion(otpSpec, osVersion, hexMirrors)
+  core.startGroup(`Installing Erlang/OTP ${otpVersion} - built on ${osVersion}`)
+  await installer.installOTP(osVersion, otpVersion, hexMirrors)
   core.setOutput('otp-version', otpVersion)
-  if (process.platform === 'linux') {
-    core.addPath(`${process.env.RUNNER_TEMP}/.setup-beam/otp/bin`)
-  } else if (process.platform === 'win32') {
-    const otpPath = fs.readFileSync(`${process.env.RUNNER_TEMP}/otp_path.txt`, {
-      encoding: 'utf8',
-      flag: 'r',
-    })
-    core.addPath(otpPath)
-  }
-  console.log('##[endgroup]')
+  core.endGroup()
 
   return otpVersion
 }
 
-async function maybeInstallElixir(elixirSpec, otpVersion) {
+async function maybeInstallElixir(elixirSpec, otpSpec, hexMirrors) {
   let installed = false
 
   if (elixirSpec) {
-    const elixirVersion = await getElixirVersion(elixirSpec, otpVersion)
-    console.log(`##[group]Installing Elixir ${elixirVersion}`)
-    await installer.installElixir(elixirVersion)
-    core.setOutput('elixir-version', elixirVersion)
-    const matchersPath = path.join(__dirname, '..', '.github')
-    console.log(
-      `##[add-matcher]${path.join(matchersPath, 'elixir-matchers.json')}`,
+    const elixirVersion = await getElixirVersion(
+      elixirSpec,
+      otpSpec,
+      hexMirrors,
     )
-    core.addPath(`${process.env.RUNNER_TEMP}/.setup-beam/elixir/bin`)
-    console.log('##[endgroup]')
+    core.startGroup(`Installing Elixir ${elixirVersion}`)
+    await installer.installElixir(elixirVersion, hexMirrors)
+    core.setOutput('elixir-version', elixirVersion)
+    const disableProblemMatchers = getInput('disable_problem_matchers', false)
+    if (disableProblemMatchers === 'false') {
+      const elixirMatchers = path.join(
+        __dirname,
+        '..',
+        'matchers',
+        'elixir-matchers.json',
+      )
+      core.info(`##[add-matcher]${elixirMatchers}`)
+    }
+    core.endGroup()
 
     installed = true
   }
@@ -79,13 +95,29 @@ async function maybeInstallElixir(elixirSpec, otpVersion) {
   return installed
 }
 
-async function mix(shouldMix, what) {
-  if (shouldMix) {
+async function mixWithMirrors(cmd, args, hexMirrors) {
+  if (hexMirrors.length === 0) {
+    throw new Error('mix failed with every mirror')
+  }
+  const [hexMirror, ...hexMirrorsT] = hexMirrors
+  process.env.HEX_MIRROR = hexMirror
+  try {
+    return await exec(cmd, args)
+  } catch (err) {
+    core.info(
+      `mix failed with mirror ${process.env.HEX_MIRROR} with message ${err.message})`,
+    )
+  }
+  return mixWithMirrors(cmd, args, hexMirrorsT)
+}
+
+async function mix(shouldMix, what, hexMirrors) {
+  if (shouldMix === 'true') {
     const cmd = 'mix'
     const args = [`local.${what}`, '--force']
-    console.log(`##[group]Running ${cmd} ${args}`)
-    await exec(cmd, args)
-    console.log('##[endgroup]')
+    core.startGroup(`Running ${cmd} ${args}`)
+    await mixWithMirrors(cmd, args, hexMirrors)
+    core.endGroup()
   }
 }
 
@@ -94,11 +126,11 @@ async function maybeInstallGleam(gleamSpec) {
 
   if (gleamSpec) {
     const gleamVersion = await getGleamVersion(gleamSpec)
-    console.log(`##[group]Installing Gleam ${gleamVersion}`)
+    core.startGroup(`Installing Gleam ${gleamVersion}`)
     await installer.installGleam(gleamVersion)
     core.setOutput('gleam-version', gleamVersion)
     core.addPath(`${process.env.RUNNER_TEMP}/.setup-beam/gleam/bin`)
-    console.log('##[endgroup]')
+    core.endGroup()
 
     installed = true
   }
@@ -108,14 +140,19 @@ async function maybeInstallGleam(gleamSpec) {
 
 async function maybeInstallRebar3(rebar3Spec) {
   let installed = false
+  let rebar3Version
 
   if (rebar3Spec) {
-    const rebar3Version = await getRebar3Version(rebar3Spec)
-    console.log(`##[group]Installing rebar3 ${rebar3Version}`)
+    if (rebar3Spec === 'nightly') {
+      rebar3Version = 'nightly'
+    } else {
+      rebar3Version = await getRebar3Version(rebar3Spec)
+    }
+    core.startGroup(`Installing rebar3 ${rebar3Version}`)
     await installer.installRebar3(rebar3Version)
     core.setOutput('rebar3-version', rebar3Version)
     core.addPath(`${process.env.RUNNER_TEMP}/.setup-beam/rebar3/bin`)
-    console.log('##[endgroup]')
+    core.endGroup()
 
     installed = true
   }
@@ -123,21 +160,15 @@ async function maybeInstallRebar3(rebar3Spec) {
   return installed
 }
 
-async function getOTPVersion(otpSpec0, osVersion) {
-  const otpVersions = await getOTPVersions(osVersion)
-  const otpSpec = otpSpec0.match(/^(OTP-)?([^ ]+)/)
-  let otpVersion
-  if (otpSpec[1]) {
-    throw new Error(
-      `Requested Erlang/OTP version (${otpSpec0}) ` +
-        "should not contain 'OTP-'",
-    )
-  }
-  if (otpSpec) {
-    otpVersion = getVersionFromSpec(
-      otpSpec[2],
-      Array.from(otpVersions.keys()).sort(),
-    )
+async function getOTPVersion(otpSpec0, osVersion, hexMirrors) {
+  const otpVersions = await getOTPVersions(osVersion, hexMirrors)
+  let otpSpec = otpSpec0 // might be a branch (?)
+  const otpVersion = getVersionFromSpec(
+    otpSpec,
+    Array.from(otpVersions.keys()).sort(),
+  )
+  if (isVersion(otpSpec0)) {
+    otpSpec = `OTP-${otpSpec0}` // ... it's a version!
   }
   if (otpVersion === null) {
     throw new Error(
@@ -149,58 +180,48 @@ async function getOTPVersion(otpSpec0, osVersion) {
   return otpVersions.get(otpVersion) // from the reference, for download
 }
 
-async function getElixirVersion(exSpec0, otpVersion) {
-  const elixirVersions = await getElixirVersions()
+async function getElixirVersion(exSpec0, otpVersion0, hexMirrors) {
+  const otpVersion = otpVersion0.match(/^([^-]+-)?(.+)$/)[2]
+  const otpVersionMajor = otpVersion.match(/^([^.]+).*$/)[1]
+  const elixirVersions = await getElixirVersions(hexMirrors)
   const semverVersions = Array.from(elixirVersions.keys()).sort()
-
-  const exSpec = exSpec0.match(/^v?(.+)(-otp-.+)/) || exSpec0.match(/^v?(.+)/)
-  let elixirVersion
-  if (exSpec[2]) {
-    throw new Error(
-      `Requested Elixir / Erlang/OTP version (${exSpec0} / ${otpVersion}) ` +
-        "should not contain '-otp-...'",
-    )
+  const exSpec = exSpec0.replace(/-otp-.*$/, '')
+  const elixirVersionFromSpec = getVersionFromSpec(exSpec, semverVersions, true)
+  let elixirVersionForDownload = elixirVersionFromSpec
+  if (isVersion(otpVersionMajor)) {
+    elixirVersionForDownload = `${elixirVersionFromSpec}-otp-${otpVersionMajor}`
   }
-  if (exSpec) {
-    elixirVersion = getVersionFromSpec(exSpec[1], semverVersions)
-  }
-  if (!exSpec || elixirVersion === null) {
+  if (elixirVersionFromSpec === null) {
     throw new Error(
       `Requested Elixir version (${exSpec0}) not found in version list ` +
         "(should you be using option 'version-type': 'strict'?)",
     )
   }
-  const otpMatch = otpVersion.match(/^(?:OTP-)?([^.]+)/)
-  let elixirVersionWithOTP
 
-  if (elixirVersions.get(elixirVersion)) {
-    const otpVersionMajor = otpMatch[1]
-    // We try for a version like `v1.4.5-otp-20`...
-    if (elixirVersions.get(elixirVersion).includes(otpMatch[1])) {
-      // ... and it's available: use it!
-      elixirVersionWithOTP = `${elixirVersion}-otp-${otpVersionMajor}`
-      core.info(
-        `Using Elixir ${elixirVersion} (built for OTP ${otpVersionMajor})`,
-      )
-    } else {
-      // ... and it's not available: fallback to the 'generic' version (v1.4.5 only).
-      elixirVersionWithOTP = elixirVersion
-      core.info(`Using Elixir ${elixirVersion}`)
-    }
+  const elixirVersionComp = elixirVersions.get(elixirVersionFromSpec)
+  if (
+    (elixirVersionComp && elixirVersionComp.includes(otpVersionMajor)) ||
+    !isVersion(otpVersionMajor)
+  ) {
+    core.info(
+      `Using Elixir ${elixirVersionFromSpec} (built for Erlang/OTP ${otpVersionMajor})`,
+    )
   } else {
     throw new Error(
-      `Requested Elixir / Erlang/OTP version (${exSpec0} / ${otpVersion}) not ` +
-        "found in version list (should you be using option 'version-type': 'strict'?)",
+      `Requested Elixir / Erlang/OTP version (${exSpec0} / ${otpVersion0}) not ` +
+        'found in version list (did you check Compatibility between Elixir and Erlang/OTP?).' +
+        'Elixir and Erlang/OTP compatibility can be found at: ' +
+        'https://hexdocs.pm/elixir/compatibility-and-deprecations.html',
     )
   }
 
-  return maybePrependWithV(elixirVersionWithOTP, elixirVersion)
+  return maybePrependWithV(elixirVersionForDownload)
 }
 
 async function getGleamVersion(gleamSpec0) {
-  const gleamSpec = gleamSpec0.match(/^v?(.+)/)
+  const gleamSpec = gleamSpec0.match(/^v?(.+)$/)
   const gleamVersions = await getGleamVersions()
-  const gleamVersion = getVersionFromSpec(gleamSpec[1], gleamVersions)
+  const gleamVersion = getVersionFromSpec(gleamSpec[1], gleamVersions, true)
   if (gleamVersion === null) {
     throw new Error(
       `Requested Gleam version (${gleamSpec0}) not found in version list ` +
@@ -224,19 +245,19 @@ async function getRebar3Version(r3Spec) {
   return rebar3Version
 }
 
-async function getOTPVersions(osVersion) {
+async function getOTPVersions(osVersion, hexMirrors) {
+  let otpVersionsListings
   let originListing
-  let pageIdxs
   if (process.platform === 'linux') {
-    originListing = `https://repo.hex.pm/builds/otp/${osVersion}/builds.txt`
-    pageIdxs = [null]
+    originListing = `/builds/otp/${osVersion}/builds.txt`
+    otpVersionsListings = await getWithMirrors(originListing, hexMirrors)
   } else if (process.platform === 'win32') {
     originListing =
       'https://api.github.com/repos/erlang/otp/releases?per_page=100'
-    pageIdxs = [1, 2, 3]
+    otpVersionsListings = await get(originListing, [1, 2, 3])
   }
+  debugLog(`OTP versions listings from ${originListing}`, otpVersionsListings)
 
-  const otpVersionsListings = await get(originListing, pageIdxs)
   const otpVersions = new Map()
 
   if (process.platform === 'linux') {
@@ -244,13 +265,15 @@ async function getOTPVersions(osVersion) {
       .trim()
       .split('\n')
       .forEach((line) => {
-        const otpMatch = line.match(/^(OTP-)?([^ ]+)/)
+        const otpMatch = line
+          .match(/^([^ ]+)?( .+)/)[1]
+          .match(/^([^-]+-)?(.+)$/)
         const otpVersion = otpMatch[2]
         otpVersions.set(otpVersion, otpMatch[0]) // we keep the original for later reference
       })
   } else if (process.platform === 'win32') {
     otpVersionsListings.forEach((otpVersionsListing) => {
-      JSON.parse(otpVersionsListing)
+      jsonParseAsList(otpVersionsListing)
         .map((x) => x.assets)
         .flat()
         .filter((x) => x.name.match(/^otp_win64_.*.exe$/))
@@ -261,14 +284,13 @@ async function getOTPVersions(osVersion) {
         })
     })
   }
-
   return otpVersions
 }
 
-async function getElixirVersions() {
-  const elixirVersionsListings = await get(
-    'https://repo.hex.pm/builds/elixir/builds.txt',
-    [null],
+async function getElixirVersions(hexMirrors) {
+  const elixirVersionsListings = await getWithMirrors(
+    '/builds/elixir/builds.txt',
+    hexMirrors,
   )
   const otpVersionsForElixirMap = new Map()
 
@@ -278,7 +300,7 @@ async function getElixirVersions() {
     .forEach((line) => {
       const elixirMatch =
         line.match(/^v?(.+)-otp-([^ ]+)/) || line.match(/^v?([^ ]+)/)
-      const elixirVersion = elixirMatch[1]
+      const elixirVersion = maybePrependWithV(elixirMatch[1])
       const otpVersion = elixirMatch[2]
       const otpVersions = otpVersionsForElixirMap.get(elixirVersion) || []
       if (otpVersion) {
@@ -298,7 +320,7 @@ async function getGleamVersions() {
   )
   const gleamVersionsListing = []
   resultJSONs.forEach((resultJSON) => {
-    JSON.parse(resultJSON)
+    jsonParseAsList(resultJSON)
       .map((x) => x.tag_name)
       .sort()
       .forEach((v) => gleamVersionsListing.push(v))
@@ -313,7 +335,7 @@ async function getRebar3Versions() {
   )
   const rebar3VersionsListing = []
   resultJSONs.forEach((resultJSON) => {
-    JSON.parse(resultJSON)
+    jsonParseAsList(resultJSON)
       .map((x) => x.tag_name)
       .sort()
       .forEach((v) => rebar3VersionsListing.push(v))
@@ -321,13 +343,14 @@ async function getRebar3Versions() {
   return rebar3VersionsListing
 }
 
-function getVersionFromSpec(spec, versions) {
+function isStrictVersion() {
+  return getInput('version-type', false) === 'strict'
+}
+
+function getVersionFromSpec(spec, versions, maybePrependWithV0) {
   let version = null
 
-  if (
-    spec.match(/rc/) ||
-    core.getInput('version-type', { required: false }) === 'strict'
-  ) {
+  if (spec.match(/rc/) || isStrictVersion()) {
     version = spec
   }
 
@@ -349,7 +372,16 @@ function getVersionFromSpec(spec, versions) {
     }
   }
 
-  return version === null || version === undefined ? null : version
+  let v = version === null || version === undefined ? null : version
+  if (maybePrependWithV0 && v != null) {
+    v = maybePrependWithV(v)
+  }
+
+  if (!versions.includes(v)) {
+    v = null
+  }
+
+  return v
 }
 
 function maybeCoerced(v) {
@@ -388,11 +420,11 @@ function sortVersions(left, right) {
 
 function getRunnerOSVersion() {
   const ImageOSToContainer = {
-    ubuntu16: 'ubuntu-16.04',
     ubuntu18: 'ubuntu-18.04',
     ubuntu20: 'ubuntu-20.04',
-    win16: 'windows-2016',
+    ubuntu22: 'ubuntu-22.04',
     win19: 'windows-2019',
+    win22: 'windows-2022',
   }
   const containerFromEnvImageOS = ImageOSToContainer[process.env.ImageOS]
 
@@ -412,55 +444,140 @@ function getRunnerOSVersion() {
 }
 
 async function get(url0, pageIdxs) {
-  function getPage(pageIdx) {
-    return new Promise((resolve, reject) => {
-      const url = new URL(url0)
-      if (pageIdx !== null) {
-        url.searchParams.append('page', pageIdx)
-      }
-      https
-        .get(
-          url,
-          {
-            headers: { 'user-agent': 'setup-beam' },
-          },
-          (res) => {
-            let data = ''
-            res.on('data', (chunk) => {
-              data += chunk
-            })
-            res.on('end', () => {
-              if (res.statusCode >= 400 && res.statusCode <= 599) {
-                reject(
-                  new Error(
-                    `Got ${res.statusCode} from ${url}. Exiting with error`,
-                  ),
-                )
-              } else {
-                resolve(data)
-              }
-            })
-          },
-        )
-        .on('error', (err) => {
-          reject(err)
-        })
+  async function getPage(pageIdx) {
+    const url = new URL(url0)
+    const headers = {}
+    const GithubToken = getInput('github-token', false)
+
+    if (GithubToken && url.host === 'api.github.com') {
+      headers.authorization = `Bearer ${GithubToken}`
+    }
+
+    if (pageIdx !== null) {
+      url.searchParams.append('page', pageIdx)
+    }
+
+    const httpClient = new http.HttpClient('setup-beam', [], {
+      allowRetries: true,
+      maxRetries: 3,
     })
+
+    const response = await httpClient.get(url, headers)
+
+    if (response.statusCode >= 400 && response.statusCode <= 599) {
+      throw new Error(
+        `Got ${response.statusCode} from ${url}. Exiting with error`,
+      )
+    }
+
+    return response.readBody()
   }
-  let ret
+
   if (pageIdxs[0] === null) {
-    ret = getPage(null)
-  } else {
-    ret = Promise.all(pageIdxs.map((pageIdx) => getPage(pageIdx)))
+    return getPage(null)
   }
-  return ret
+  return Promise.all(pageIdxs.map(getPage))
 }
 
-function maybePrependWithV(versionToPrepend, specVersion) {
-  const digitStart = new RegExp('^\\d+')
-  return digitStart.test(specVersion)
-    ? `v${versionToPrepend}`
-    : versionToPrepend
+async function getWithMirrors(resourcePath, hexMirrors) {
+  if (hexMirrors.length === 0) {
+    throw new Error(`Could not fetch ${resourcePath} from any hex.pm mirror`)
+  }
+  const [hexMirror, ...hexMirrorsT] = hexMirrors
+  try {
+    return await get(`${hexMirror}${resourcePath}`, [null])
+  } catch (err) {
+    core.info(`get failed for URL ${hexMirror}${resourcePath}`)
+  }
+  return getWithMirrors(resourcePath, hexMirrorsT)
+}
+
+function maybePrependWithV(v) {
+  if (isVersion(v)) {
+    return `v${v.replace('v', '')}`
+  }
+  return v
+}
+
+function isVersion(v) {
+  return /^v?\d+/.test(v)
+}
+
+function getInput(inputName, required, alternativeName, alternatives) {
+  const alternativeValue = (alternatives || new Map()).get(alternativeName)
+  let input = core.getInput(inputName, {
+    required: alternativeValue ? false : required,
+  })
+  // We can't have both input and alternativeValue set
+  if (input && alternativeValue) {
+    throw new Error(
+      `Found input ${inputName}=${input} (from the YML) \
+alongside ${alternativeName}=${alternativeValue} \
+(from the version file). You must choose one or the other.`,
+    )
+  } else if (!input) {
+    input = alternativeValue
+  }
+  return input
+}
+
+function parseVersionFile(versionFilePath0) {
+  const versionFilePath = path.join(
+    process.env.GITHUB_WORKSPACE,
+    versionFilePath0,
+  )
+  if (!fs.existsSync(versionFilePath)) {
+    throw new Error(
+      `The specified version file, ${versionFilePath0}, does not exist`,
+    )
+  }
+  core.startGroup(`Parsing version file at ${versionFilePath0}`)
+  const appVersions = new Map()
+  const versions = fs.readFileSync(versionFilePath, 'utf8')
+  // For the time being we parse .tool-versions
+  // If we ever start parsing something else, this should
+  // become default in a new option named e.g. version-file-type
+  versions.split('\n').forEach((line) => {
+    const appVersion = line.match(/^([^ ]+)[ ]+([^ #]+)/)
+    if (appVersion) {
+      const app = appVersion[1]
+      if (['erlang', 'elixir', 'gleam', 'rebar'].includes(app)) {
+        const [, , version] = appVersion
+        core.info(`Consuming ${app} at version ${version}`)
+        appVersions.set(app, version)
+      }
+    }
+  })
+  if (!appVersions.size) {
+    core.info('There was apparently nothing to consume')
+  } else {
+    core.info('... done!')
+  }
+  core.endGroup()
+
+  return appVersions
+}
+
+function jsonParseAsList(maybeJson) {
+  try {
+    const obj = JSON.parse(maybeJson)
+    if (!Array.isArray(obj)) {
+      throw new Error('expected a list!')
+    }
+    return obj
+  } catch (exc) {
+    throw new Error(
+      `Got an exception when trying to parse non-JSON list ${maybeJson}: ${exc}`,
+    )
+  }
+}
+
+function debugLog(groupName, message) {
+  if (process.env.RUNNER_DEBUG) {
+    core.startGroup(`Debugging for ${groupName}`)
+    core.debug(message)
+    core.endGroup()
+  }
 }
 
 module.exports = {
@@ -469,4 +586,5 @@ module.exports = {
   getGleamVersion,
   getRebar3Version,
   getVersionFromSpec,
+  parseVersionFile,
 }

test-projects/gleam_rebar3/.gitignore

@@ -1,21 +0,0 @@
-*.beam
-*.iml
-*.o
-*.plt
-*.swo
-*.swp
-*~
-.erlang.cookie
-.eunit
-.idea
-.rebar
-.rebar3
-_*
-_build
-docs
-ebin
-erl_crash.dump
-gen
-log
-logs
-rebar3.crashdump

test-projects/gleam_rebar3/README.md

@@ -1,24 +0,0 @@
-# gleam_rebar3
-
-A Gleam project
-
-## Quick start
-
-```sh
-# Run the eunit tests
-rebar3 eunit
-
-# Run the Erlang REPL
-rebar3 shell
-```
-
-## Installation
-
-If [available in Hex](https://rebar3.org/docs/configuration/dependencies/#declaring-dependencies)
-this package can be installed by adding `gleam_rebar3` to your `rebar.config` dependencies:
-
-```erlang
-{deps, [
-    gleam_rebar3
-]}.
-```

test-projects/gleam_rebar3/gleam.toml

@@ -1,3 +0,0 @@
-name = "gleam_rebar3"
-
-# repository = { type = "github", user = "my-user", repo = "gleam_rebar3" }

test-projects/gleam_rebar3/rebar.config

@@ -1,12 +0,0 @@
-{erl_opts, [debug_info]}.
-{src_dirs, ["src", "gen/src"]}.
-
-{profiles, [
-    {test, [{src_dirs, ["src", "test", "gen/src", "gen/test"]}]}
-]}.
-
-{project_plugins, [rebar_gleam]}.
-
-{deps, [
-    {gleam_stdlib, "0.16.0"}
-]}.

test-projects/gleam_rebar3/src/gleam_rebar3.app.src

@@ -1,15 +0,0 @@
-{application, gleam_rebar3,
- [{description, "A Gleam project"},
-  {vsn, "0.1.0"},
-  {registered, []},
-  {applications,
-   [kernel,
-    stdlib,
-    gleam_stdlib
-   ]},
-  {env,[]},
-  {modules, []},
-
-  {include_files, ["gleam.toml", "gen"]},
-  {links, []}
-]}.

test-projects/gleam_rebar3/src/gleam_rebar3.gleam

@@ -1,3 +0,0 @@
-pub fn hello_world() -> String {
-  "Hello, from gleam_rebar3!"
-}

test-projects/gleam_rebar3/test/gleam_rebar3_test.gleam

@@ -1,7 +0,0 @@
-import gleam_rebar3
-import gleam/should
-
-pub fn hello_world_test() {
-  gleam_rebar3.hello_world()
-  |> should.equal("Hello, from gleam_rebar3!")
-}

test/problem-matchers.test.js

@@ -1,12 +1,12 @@
 const assert = require('assert')
-const { problemMatcher } = require('../.github/elixir-matchers.json')
+const core = require('@actions/core')
+const { problemMatcher } = require('../matchers/elixir-matchers.json')
 
 async function all() {
   await testElixirMixCompileError()
   await testElixirMixCompileWarning()
   await testElixirMixTestFailure()
   await testElixirCredoOutputDefault()
-  await testElixirDialyzerOutputDefault()
 }
 
 async function testElixirMixCompileError() {
@@ -74,27 +74,9 @@ async function testElixirCredoOutputDefault() {
   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)
+    core.error(err)
     process.exit(1)
   })

test/projects/gleam_gleam/.github/workflows/test.yml

@@ -12,12 +12,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2.0.0
-      - uses: gleam-lang/setup-erlang@v1.1.2
+      - uses: erlef/setup-beam@v1.9.0
         with:
-          otp-version: 23.2
-      - uses: gleam-lang/setup-gleam@v1.0.2
-        with:
-          gleam-version: 0.16.1
-      - run: rebar3 install_deps
-      - run: rebar3 eunit
+          otp-version: "23.2"
+          gleam-version: "0.23.0-rc1"
       - run: gleam format --check src test
+      - run: gleam deps download
+      - run: gleam test

test/projects/gleam_gleam/.gitignore

@@ -0,0 +1,4 @@
+*.beam
+*.ez
+build
+erl_crash.dump

test/projects/gleam_gleam/README.md

@@ -0,0 +1,19 @@
+# gleam_gleam
+
+A Gleam project
+
+## Quick start
+
+```sh
+gleam run   # Run the project
+gleam test  # Run the tests
+gleam shell # Run an Erlang shell
+```
+
+## Installation
+
+If available on Hex this package can be added to your Gleam project.
+
+```sh
+gleam add gleam_gleam
+```

test/projects/gleam_gleam/gleam.toml

@@ -0,0 +1,16 @@
+name = "gleam_gleam"
+version = "0.1.0"
+
+# Fill out these fields if you intend to generate HTML documentation or publish
+# your project to the Hex package manager.
+#
+# licences = ["Apache-2.0"]
+# description = "A Gleam library..."
+# repository = { type = "github", user = "username", repo = "project" }
+# links = [{ title = "Website", href = "https://gleam.run" }]
+
+[dependencies]
+gleam_stdlib = "~> 0.18"
+
+[dev-dependencies]
+gleeunit = "~> 0.5"

test/projects/gleam_gleam/manifest.toml

@@ -0,0 +1,11 @@
+# This file was generated by Gleam
+# You typically do not need to edit this file
+
+packages = [
+  { name = "gleam_stdlib", version = "0.22.3", build_tools = ["gleam"], requirements = [], otp_app = "gleam_stdlib", source = "hex", outer_checksum = "F2C2D389B06426E1289D5419F89BDE8E0F7F35A40B2BBB3C88188481F0D44A9F" },
+  { name = "gleeunit", version = "0.6.2", build_tools = ["gleam"], requirements = ["gleam_stdlib"], otp_app = "gleeunit", source = "hex", outer_checksum = "A006864621DB80C4FBB0746580703502FD81A4D38D23FCB20A8120984D353DF0" },
+]
+
+[requirements]
+gleam_stdlib = "~> 0.18"
+gleeunit = "~> 0.5"

test/projects/gleam_gleam/src/gleam_gleam.gleam

@@ -0,0 +1,5 @@
+import gleam/io
+
+pub fn main() {
+  io.println("Hello from gleam_gleam!")
+}

test/projects/gleam_gleam/test/gleam_gleam_test.gleam

@@ -0,0 +1,12 @@
+import gleeunit
+import gleeunit/should
+
+pub fn main() {
+  gleeunit.main()
+}
+
+// gleeunit test functions end in `_test`
+pub fn hello_world_test() {
+  1
+  |> should.equal(1)
+}

test/projects/rust_rebar3_cmd/.gitignore

@@ -0,0 +1,2 @@
+/target/
+main

test/projects/rust_rebar3_cmd/Cargo.lock

@@ -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"

test/projects/rust_rebar3_cmd/Cargo.toml

@@ -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]

test/projects/rust_rebar3_cmd/src/main.rs

@@ -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();
+    }
+}

test/setup-beam.test.js

@@ -1,10 +1,14 @@
-simulateInput('otp-version', '23.2')
-simulateInput('elixir-version', '1.11')
-simulateInput('rebar3-version', '3.14')
+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'])
 
 const assert = require('assert')
+const fs = require('fs')
+const core = require('@actions/core')
 const setupBeam = require('../src/setup-beam')
 const installer = require('../src/installer')
 
@@ -20,6 +24,8 @@ async function all() {
   await testRebar3Versions()
 
   await testGetVersionFromSpec()
+
+  await testParseVersionFile()
 }
 
 async function testFailInstallOTP() {
@@ -98,48 +104,49 @@ async function testOTPVersions() {
   let expected
   let spec
   let osVersion
+  const hexMirrors = ['https://repo.hex.pm', 'https://cdn.jsdelivr.net/hex']
 
   if (process.platform === 'linux') {
     spec = '19.3.x'
     osVersion = 'ubuntu-16.04'
     expected = 'OTP-19.3.6.13'
-    got = await setupBeam.getOTPVersion(spec, osVersion)
+    got = await setupBeam.getOTPVersion(spec, osVersion, hexMirrors)
     assert.deepStrictEqual(got, expected)
 
     spec = '^19.3.6'
     osVersion = 'ubuntu-16.04'
     expected = 'OTP-19.3.6.13'
-    got = await setupBeam.getOTPVersion(spec, osVersion)
+    got = await setupBeam.getOTPVersion(spec, osVersion, hexMirrors)
     assert.deepStrictEqual(got, expected)
 
     spec = '^19.3'
     osVersion = 'ubuntu-18.04'
     expected = 'OTP-19.3.6.13'
-    got = await setupBeam.getOTPVersion(spec, osVersion)
+    got = await setupBeam.getOTPVersion(spec, osVersion, hexMirrors)
     assert.deepStrictEqual(got, expected)
 
     spec = '20'
     osVersion = 'ubuntu-20.04'
     expected = 'OTP-20.3.8.26'
-    got = await setupBeam.getOTPVersion(spec, osVersion)
+    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)
+    got = await setupBeam.getOTPVersion(spec, osVersion, hexMirrors)
     assert.deepStrictEqual(got, expected)
 
     spec = '20.0'
     osVersion = 'ubuntu-20.04'
     expected = 'OTP-20.0.5'
-    got = await setupBeam.getOTPVersion(spec, osVersion)
+    got = await setupBeam.getOTPVersion(spec, osVersion, hexMirrors)
     assert.deepStrictEqual(got, expected)
 
     spec = '20.0.x'
     osVersion = 'ubuntu-20.04'
     expected = 'OTP-20.0.5'
-    got = await setupBeam.getOTPVersion(spec, osVersion)
+    got = await setupBeam.getOTPVersion(spec, osVersion, hexMirrors)
     assert.deepStrictEqual(got, expected)
   }
 
@@ -147,19 +154,19 @@ async function testOTPVersions() {
     spec = '24.0.1'
     osVersion = 'windows-latest'
     expected = '24.0.1'
-    got = await setupBeam.getOTPVersion(spec, osVersion)
+    got = await setupBeam.getOTPVersion(spec, osVersion, hexMirrors)
     assert.deepStrictEqual(got, expected)
 
     spec = '23.2.x'
     osVersion = 'windows-2016'
     expected = '23.2.7'
-    got = await setupBeam.getOTPVersion(spec, osVersion)
+    got = await setupBeam.getOTPVersion(spec, osVersion, hexMirrors)
     assert.deepStrictEqual(got, expected)
 
     spec = '23.0'
     osVersion = 'windows-2019'
     expected = '23.0.4'
-    got = await setupBeam.getOTPVersion(spec, osVersion)
+    got = await setupBeam.getOTPVersion(spec, osVersion, hexMirrors)
     assert.deepStrictEqual(got, expected)
   }
 }
@@ -169,48 +176,58 @@ async function testElixirVersions() {
   let expected
   let spec
   let otpVersion
+  let before
+  const hexMirrors = ['https://repo.hex.pm']
 
   spec = '1.1.x'
-  otpVersion = 'OTP-23'
-  expected = 'v1.1.1'
-  got = await setupBeam.getElixirVersion(spec, otpVersion)
+  otpVersion = 'OTP-17'
+  expected = 'v1.1.1-otp-17'
+  got = await setupBeam.getElixirVersion(spec, otpVersion, hexMirrors)
   assert.deepStrictEqual(got, expected)
 
   spec = '1.10.4'
   otpVersion = 'OTP-23'
   expected = 'v1.10.4-otp-23'
-  got = await setupBeam.getElixirVersion(spec, otpVersion)
+  got = await setupBeam.getElixirVersion(spec, otpVersion, hexMirrors)
   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)
+  got = await setupBeam.getElixirVersion(spec, otpVersion, hexMirrors)
   assert.deepStrictEqual(got, expected)
 
-  simulateInput('version-type', 'strict')
+  before = simulateInput('version-type', 'strict')
+  spec = '1.14.0'
+  otpVersion = 'master'
+  expected = 'v1.14.0'
+  got = await setupBeam.getElixirVersion(spec, otpVersion, hexMirrors)
+  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)
+  got = await setupBeam.getElixirVersion(spec, otpVersion, hexMirrors)
   assert.deepStrictEqual(got, expected)
-  simulateInput('version-type', 'loose')
+  simulateInput('version-type', before)
 
-  simulateInput('version-type', 'strict')
+  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)
+  got = await setupBeam.getElixirVersion(spec, otpVersion, hexMirrors)
   assert.deepStrictEqual(got, expected)
-  simulateInput('version-type', 'loose')
+  simulateInput('version-type', before)
 
-  simulateInput('version-type', 'strict')
-  spec = 'master'
+  before = simulateInput('version-type', 'strict')
+  spec = 'main'
   otpVersion = '23.1'
-  expected = 'master-otp-23'
-  got = await setupBeam.getElixirVersion(spec, otpVersion)
+  expected = 'main-otp-23'
+  got = await setupBeam.getElixirVersion(spec, otpVersion, hexMirrors)
   assert.deepStrictEqual(got, expected)
-  simulateInput('version-type', 'loose')
+  simulateInput('version-type', before)
 }
 
 async function testGleamVersions() {
@@ -231,13 +248,13 @@ async function testGleamVersions() {
   got = await setupBeam.getGleamVersion(spec, otpVersion)
   assert.deepStrictEqual(got, expected)
 
-  simulateInput('version-type', 'strict')
+  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', 'loose')
+  simulateInput('version-type', before)
 }
 
 async function testRebar3Versions() {
@@ -265,6 +282,7 @@ async function testGetVersionFromSpec() {
   let got
   let expected
   let spec
+  let before
   const versions = [
     '3.2.30.5',
     '3.2.3.5',
@@ -306,19 +324,19 @@ async function testGetVersionFromSpec() {
   got = setupBeam.getVersionFromSpec(spec, versions)
   assert.deepStrictEqual(got, expected)
 
-  simulateInput('version-type', 'strict')
+  before = simulateInput('version-type', 'strict')
   spec = '1'
   expected = '1'
   got = setupBeam.getVersionFromSpec(spec, versions)
   assert.deepStrictEqual(got, expected)
-  simulateInput('version-type', 'loose')
+  simulateInput('version-type', before)
 
-  simulateInput('version-type', 'strict')
+  before = simulateInput('version-type', 'strict')
   spec = '1.0'
   expected = '1.0'
   got = setupBeam.getVersionFromSpec(spec, versions)
   assert.deepStrictEqual(got, expected)
-  simulateInput('version-type', 'loose')
+  simulateInput('version-type', before)
 
   spec = '2'
   expected = '2.10'
@@ -345,12 +363,12 @@ async function testGetVersionFromSpec() {
   got = setupBeam.getVersionFromSpec(spec, versions)
   assert.deepStrictEqual(got, expected)
 
-  simulateInput('version-type', 'strict')
+  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', 'loose')
+  simulateInput('version-type', before)
 
   spec = '24.0-rc2'
   expected = '24.0-rc2'
@@ -377,33 +395,92 @@ async function testGetVersionFromSpec() {
   got = setupBeam.getVersionFromSpec(spec, versions)
   assert.deepStrictEqual(got, expected)
 
-  simulateInput('version-type', 'strict')
+  before = simulateInput('version-type', 'strict')
   spec = 'master'
   expected = 'master'
   got = setupBeam.getVersionFromSpec(spec, versions)
   assert.deepStrictEqual(got, expected)
-  simulateInput('version-type', 'loose')
+  simulateInput('version-type', before)
 
   spec = 'master'
   expected = 'master'
   got = setupBeam.getVersionFromSpec(spec, versions)
   assert.deepStrictEqual(got, expected)
 
-  simulateInput('version-type', 'strict')
+  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', 'loose')
+  simulateInput('version-type', before)
+
+  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   ${erlang}# comment, no space
+elixir ${elixir}  # comment, with space
+ 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)
+
+  assert.ok(async () => {
+    await installer.installOTP(erlang)
+  })
+  assert.ok(async () => {
+    await installer.installElixir(elixir)
+  })
+  assert.ok(async () => {
+    await installer.installGleam(gleam)
+  })
+  assert.ok(async () => {
+    await installer.installRebar3(rebar3)
+  })
+
+  simulateInput('otp-version', otpVersion)
+  simulateInput('elixir-version', elixirVersion)
+  simulateInput('gleam-version', gleamVersion)
+  simulateInput('rebar3-version', rebar3Version)
+}
+
+function unsimulateInput(key) {
+  return simulateInput(key, '')
 }
 
 function simulateInput(key, value) {
-  process.env[`INPUT_${key.replace(/ /g, '_').toUpperCase()}`] = value
+  const before = process.env[input(key)]
+  process.env[input(key)] = value
+  return before
+}
+
+function input(key) {
+  return `INPUT_${key.replace(/ /g, '_').toUpperCase()}`
 }
 
 all()
   .then(() => process.exit(0))
   .catch((err) => {
-    console.error(err)
+    core.error(err)
     process.exit(1)
   })