Automation: update setup-beam version output to ea45c80

Remove lodash Dependency (#457 )
NodeJS 24 contains RegExp.escape, no need for lodash.
2026-07-23 07:06:07 +00:00 · 2026-06-28 16:35:41 +00:00 · 2026-06-28 17:35:21 +01:00 · 2026-06-28 15:16:26 +00:00 · 2026-06-28 16:16:07 +01:00 · 2026-06-28 15:14:47 +00:00
19 changed files with 37878 additions and 32388 deletions
@@ -24,7 +24,7 @@ jobs:
    permissions:
      contents: write
    steps:
-      - uses: actions/checkout@v4.2.2
+      - uses: actions/checkout@v7.0.0
      - name: Version it!
        run: |
          # We expect a string such as const setupBeamVersion = 'undefined' in the code
@@ -45,10 +45,10 @@ jobs:
    runs-on: ubuntu-latest
    if: github.ref != 'refs/heads/main'
    steps:
-      - uses: actions/checkout@v4.2.2
-      - uses: actions/setup-node@v4.4.0
+      - uses: actions/checkout@v7.0.0
+      - uses: actions/setup-node@v6.3.0
        with:
-          node-version: '20'
+          node-version: '24'
      - run: npm run build-dist
      - name: Check if build left artifacts
        run: git diff --exit-code --ignore-space-at-eol
@@ -58,19 +58,26 @@ jobs:
    runs-on: ubuntu-latest
    if: github.ref != 'refs/heads/main'
    steps:
-      - uses: actions/checkout@v4.2.2
-      - uses: raven-actions/actionlint@v2.0.1
+      - uses: actions/checkout@v7.0.0
+      - uses: raven-actions/actionlint@v2.1.2

  unit_tests_ubuntu:
    name: Unit tests (Ubuntu)
-    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        os:
+          - ubuntu-24.04-arm # ARM64
+          - ubuntu-latest # x86_64
+    runs-on: ${{ matrix.os }}
    steps:
-      - uses: actions/checkout@v4.2.2
-      - uses: actions/setup-node@v4.4.0
+      - uses: actions/checkout@v7.0.0
+      - uses: actions/setup-node@v6.3.0
        with:
-          node-version: '20'
+          node-version: '24'
      - run: npm ci
      - run: npm test
+        env:
+          NODE_ENV: test
      - name: .tool-versions test
        id: setup-beam
        uses: ./
@@ -82,14 +89,20 @@ jobs:

  unit_tests_windows:
    name: Unit tests (Windows)
-    runs-on: windows-latest
+    strategy:
+      matrix:
+        os:
+          - windows-latest # x86_64
+    runs-on: ${{ matrix.os }}
    steps:
-      - uses: actions/checkout@v4.2.2
-      - uses: actions/setup-node@v4.4.0
+      - uses: actions/checkout@v7.0.0
+      - uses: actions/setup-node@v6.3.0
        with:
-          node-version: '20'
+          node-version: '24'
      - run: npm install --production
      - run: npm test
+        env:
+          NODE_ENV: test
      - name: .tool-versions test
        id: setup-beam
        uses: ./
@@ -101,11 +114,18 @@ jobs:

  unit_tests_macos:
    name: Unit tests (macOS)
-    runs-on: macos-latest
+    strategy:
+      matrix:
+        os:
+          - macos-latest # ARM64
+          - macos-15-intel # x86_64
+    runs-on: ${{ matrix.os }}
    steps:
-      - uses: actions/checkout@v4.2.2
-      - uses: actions/setup-node@v4.4.0
+      - uses: actions/checkout@v7.0.0
+      - uses: actions/setup-node@v6.3.0
        with:
-          node-version: '20'
+          node-version: '24'
      - run: npm ci
      - run: npm test
+        env:
+          NODE_ENV: test
@@ -26,7 +26,7 @@ jobs:
        install-rebar: [true, false]
        install-hex: [true, false]
    steps:
-      - uses: actions/checkout@v4.2.2
+      - uses: actions/checkout@v7.0.0
      - name: Use erlef/setup-beam
        id: setup-beam
        uses: ./
@@ -16,6 +16,7 @@ on:
 jobs:
  integration_test:
    name: >
+      OS ${{matrix.combo.os}},
      OTP ${{matrix.combo.otp-version}},
      Elixir ${{matrix.combo.elixir-version}},
      rebar3 ${{matrix.combo.rebar3-version}}
@@ -24,6 +25,22 @@ jobs:
      fail-fast: false
      matrix:
        combo:
+          # macOS 14 - per README
+          - otp-version: '25'
+            os: 'macos-14'
+          - otp-version: '29'
+            os: 'macos-14'
+          # macOS 15 - per README
+          - otp-version: '25'
+            os: 'macos-15'
+          - otp-version: '29'
+            os: 'macos-15'
+          # macOS 26 - per README
+          - otp-version: '25'
+            os: 'macos-26'
+          - otp-version: '29'
+            os: 'macos-26'
+          # macOS latest
          - otp-version: '27'
            elixir-version: 'v1.17.0'
            rebar3-version: '3.23'
@@ -43,19 +60,13 @@ jobs:
            elixir-version: '1.14.3'
            os: 'macos-latest'
            version-type: 'strict'
-          - otp-version: '25'
-            os: 'macos-15'
-          - otp-version: '26'
-            elixir-version: '1.16'
-            rebar3-version: '3.25'
-            os: 'macos-14'
          - otp-version: '25.0'
-            elixir-version: 'v1.13.4-otp-25'
+            elixir-version: 'v1.16.3-otp-25'
            rebar3-version: '3.18.0'
            os: 'macos-latest'
            version-type: 'strict'
          - otp-version: '25.0'
-            elixir-version: 'v1.13.4'
+            elixir-version: 'v1.16.3'
            rebar3-version: '3.18.0'
            os: 'macos-latest'
            version-type: 'strict'
@@ -65,7 +76,7 @@ jobs:
            rebar3-version: 'latest'
            os: 'macos-latest'
    steps:
-      - uses: actions/checkout@v4.2.2
+      - uses: actions/checkout@v7.0.0
      - name: Use erlef/setup-beam
        id: setup-beam
        uses: ./
@@ -118,7 +129,7 @@ jobs:
            rebar3-version: 3.24
            os: macos-latest
    steps:
-      - uses: actions/checkout@v4.2.2
+      - uses: actions/checkout@v7.0.0
      - name: Use erlef/setup-beam
        id: setup-beam
        uses: ./
@@ -16,6 +16,7 @@ on:
 jobs:
  integration_test:
    name: >
+      OS ${{matrix.combo.os}},
      OTP ${{matrix.combo.otp-version}},
      Elixir ${{matrix.combo.elixir-version}},
      Gleam ${{matrix.combo.gleam-version}},
@@ -25,15 +26,22 @@ jobs:
      fail-fast: false
      matrix:
        combo:
-          - otp-version: '<26'
-            elixir-version: '<1.17'
+          # Ubuntu 22.04 - per README
+          - otp-version: '24.2'
            os: 'ubuntu-22.04'
-          - otp-version: 'master'
-            elixir-version: '> 0'
+          - otp-version: '29'
+            os: 'ubuntu-22.04'
+          # Ubuntu 24.04 - per README
+          - otp-version: '24.3'
            os: 'ubuntu-24.04'
-          - otp-version: 'master'
-            elixir-version: 'main'
+          - otp-version: '29'
            os: 'ubuntu-24.04'
+          # Ubuntu 26.04 - per README
+          - otp-version: '26'
+            os: 'ubuntu-26.04'
+          - otp-version: '29'
+            os: 'ubuntu-26.04'
+          # Ubuntu latest
          - otp-version: '27'
            elixir-version: 'v1.17.0'
            rebar3-version: '3.23'
@@ -53,19 +61,13 @@ jobs:
            elixir-version: '1.14.3'
            os: 'ubuntu-latest'
            version-type: 'strict'
-          - otp-version: '25'
-            os: 'ubuntu-24.04'
-          - otp-version: '26'
-            elixir-version: '1.16'
-            rebar3-version: '3.25'
-            os: 'ubuntu-22.04'
          - otp-version: '25.0'
-            elixir-version: 'v1.13.4-otp-25'
+            elixir-version: 'v1.16.2-otp-25'
            rebar3-version: '3.18.0'
            os: 'ubuntu-latest'
            version-type: 'strict'
          - otp-version: '25.0'
-            elixir-version: 'v1.13.4'
+            elixir-version: 'v1.16.3'
            rebar3-version: '3.18.0'
            os: 'ubuntu-latest'
            version-type: 'strict'
@@ -80,13 +82,13 @@ jobs:
            otp-version: false
            os: 'ubuntu-latest'
            disable_problem_matchers: true
-          - elixir-version: 'v1.13'
+          - elixir-version: 'v1.16'
            otp-version: '24'
            escript_packages: 'hex protobuf'
            escript_script: 'protoc-gen-elixir --version'
            os: 'ubuntu-latest'
    steps:
-      - uses: actions/checkout@v4.2.2
+      - uses: actions/checkout@v7.0.0
      - name: Use erlef/setup-beam
        id: setup-beam
        uses: ./
@@ -154,7 +156,7 @@ jobs:
            rebar3-version: 3.24
            os: ubuntu-latest
    steps:
-      - uses: actions/checkout@v4.2.2
+      - uses: actions/checkout@v7.0.0
      - name: Use erlef/setup-beam
        id: setup-beam
        uses: ./
@@ -3,6 +3,7 @@ name: Update 3rd party licenses (automation)

 permissions:
  contents: write
+  pull-requests: write

 on:
  schedule:
@@ -14,7 +15,7 @@ jobs:
    name: Update 3rd party licenses
    runs-on: ubuntu-latest
    steps:
-      - uses: actions/checkout@v4.2.2
+      - uses: actions/checkout@v7.0.0
      - run:
          ./.github/workflows/update_3rd_party_licenses.sh
        env:
@@ -16,6 +16,7 @@ on:
 jobs:
  integration_test:
    name: >
+      OS ${{matrix.combo.os}},
      OTP ${{matrix.combo.otp-version}},
      Elixir ${{matrix.combo.elixir-version}},
      Gleam ${{matrix.combo.gleam-version}},
@@ -25,12 +26,20 @@ jobs:
      fail-fast: false
      matrix:
        combo:
+          # Windows 2022 - per README
+          - otp-version: '26' # 21 is "so old", at this moment, we can't find it in latest 100
+            os: 'windows-2022'
+          - otp-version: '29'
+            os: 'windows-2022'
+          # Windows 2025 - per README
+          - otp-version: '26' # 21 is "so old", at this moment, we can't find it in latest 100
+            os: 'windows-2025'
+          - otp-version: '29'
+            os: 'windows-2025'
+          # Windows latest
          - otp-version: '<26'
            elixir-version: '<1.17'
-            os: 'ubuntu-22.04'
-          - otp-version: 'master'
-            elixir-version: '> 0'
-            os: 'ubuntu-24.04'
+            os: 'windows-latest'
          - otp-version: '27'
            elixir-version: 'v1.17.0'
            rebar3-version: '3.23'
@@ -47,30 +56,24 @@ jobs:
            elixir-version: '1.14.5'
            os: 'windows-latest'
            version-type: 'strict'
-          - otp-version: '24.0.2'
-            rebar3-version: '3.16'
-            os: 'windows-2022'
-          - otp-version: '23.0'
-            rebar3-version: '3.15'
-            os: 'windows-2022'
          - elixir-version: 'v1.10'
            otp-version: '23'
            rebar3-version: '3.14'
            os: 'windows-latest'
-          - elixir-version: 'v1.13'
+          - elixir-version: 'v1.16'
            otp-version: '24'
            rebar3-version: '3.15'
            os: 'windows-latest'
          - gleam-version: '1.9.0'
            otp-version: '27'
            os: 'windows-latest'
-          - elixir-version: 'v1.13'
+          - elixir-version: 'v1.16'
            otp-version: '24'
            escript_packages: 'hex protobuf'
            escript_script: 'protoc-gen-elixir --version'
            os: 'windows-latest'
    steps:
-      - uses: actions/checkout@v4.2.2
+      - uses: actions/checkout@v7.0.0
      - name: Use erlef/setup-beam
        id: setup-beam
        uses: ./
@@ -137,7 +140,7 @@ jobs:
            rebar3-version: 3.24
            os: windows-latest
    steps:
-      - uses: actions/checkout@v4.2.2
+      - uses: actions/checkout@v7.0.0
      - name: Use erlef/setup-beam
        id: setup-beam
        uses: ./
@@ -1,2 +1,4 @@
-node_modules/**
-test/.tool-versions
+/node_modules
+/test/.tool-versions
+/test/mise.toml
+/dist/package.json
@@ -80,17 +80,23 @@ and Erlang/OTP.

 | Operating system | Erlang/OTP | OTP Architecture | Status
 |-                 |-           | -                |-
-| `ubuntu-22.04`   | 24.2 - 28    | x86_64, arm64    | ✅
-| `ubuntu-24.04`   | 24.3 - 28    | x86_64, arm64    | ✅
-| `windows-2019`   | 21\* - 25    | x86_64, x86      | ✅
-| `windows-2022`   | 21\* - 28    | x86_64, x86      | ✅
-| `macOS-13`       | 25.0 - 28    | x86_64, arm64    | ✅
-| `macOS-14`       | 25.0 - 28    | x86_64, arm64    | ✅
-| `macOS-15`       | 25.0 - 28    | x86_64, arm64    | ✅
+| `ubuntu-22.04`   | 24.2 - 29  | x86_64, arm64    | ✅
+| `ubuntu-24.04`   | 24.3 - 29  | x86_64, arm64    | ✅
+| `ubuntu-26.04`   | 26 - 29    | x86_64, arm64    | ✅
+| `windows-2022`   | 21\* - 29  | x86_64, x86      | ✅
+| `windows-2025`   | 21\* - 29  | x86_64, x86      | ✅
+| `macOS-14`       | 25 - 29    | x86_64, arm64    | ✅
+| `macOS-15`       | 25 - 29    | x86_64, arm64    | ✅
+| `macOS-26`       | 25 - 29    | x86_64, arm64    | ✅

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

+### Compatibility between Erlang/OTP and rebar3
+
+Check [version compatibility](https://github.com/erlang/rebar3?tab=readme-ov-file#compatibility-between-rebar3-and-erlangotp)
+in `erlang/rebar3`.
+
 ### Self-hosted runners

 Self-hosted runners need to set env. variable `ImageOS` to one of the following, since the action
@@ -99,12 +105,17 @@ uses that to download assets:
 | ImageOS            | Operating system
 |-                   |-
 | `ubuntu22`         | `ubuntu-22.04`
+| `ubuntu22-arm64`   | `ubuntu-22.04`
 | `ubuntu24`         | `ubuntu-24.04`
-| `win19`            | `windows-2019`
+| `ubuntu24-arm64`   | `ubuntu-24.04`
+| `ubuntu26`         | `ubuntu-26.04`
+| `ubuntu26-arm64`   | `ubuntu-26.04`
 | `win22`            | `windows-2022`
-| `macos13`          | `macOS-13`
+| `win25`            | `windows-2025`
+| `win25-vs2026`     | `windows-2025`
 | `macos14`          | `macOS-14`
 | `macos15`          | `macOS-15`
+| `macos26`          | `macOS-26`

 as per the following example:

@@ -139,23 +150,22 @@ e.g. `${{steps.setup-beam.outputs.erlang-version}}`

 ### Version file

-A version file is specified via input `version-file` (e.g.`.tool-versions`). This
-allows not having to use YML input for versions, though the action does check (and
+A version file is specified via input `version-file` (e.g. `.tool-versions` or `mise.toml`).
+The file type is inferred from the filename: files ending in `.toml` are parsed as
+[mise](https://mise.jdx.dev/configuration.html#tools-dev-tools) configuration, and all others
+are parsed as [`.tool-versions`](https://asdf-vm.com/manage/configuration.html) (asdf format).
+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
+#### `.tool-versions` / `mise.toml` format

-| YML              | `.tool-versions`
+| YML              | Version file key
 |-                 |-
 | `otp-version`    | `erlang`
 | `elixir-version` | `elixir`
@@ -289,6 +299,34 @@ jobs:
      - run: rebar3 ct
 ```

+### Compatibility
+
+To execute matrix testing with specific dependency versions, configure the environment matrix to
+use pinned, compatible releases:
+
+```yaml
+  test:
+    runs-on: ${{matrix.compat.os}}
+    name: Erlang/OTP ${{matrix.compat.otp}} / rebar3 ${{matrix.compat.rebar3}}
+    strategy:
+      matrix:
+        compat:
+          - otp: "26.2.5.5"
+            rebar3: "3.22.1"
+            os: ubuntu-24.04
+          - otp: "27.1.2"
+            rebar3: "3.22.1"
+            os: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: erlef/setup-beam@v1
+        with:
+          otp-version: ${{matrix.compat.otp}}
+          rebar3-version: ${{matrix.compat.rebar3}}
+          version-type: strict
+      - run: rebar3 eunit
+```
+
 ### Erlang/OTP + `rebar3`, on Windows

 ```yaml
@@ -297,7 +335,7 @@ on: push

 jobs:
  test:
-    runs-on: windows-2022
+    runs-on: windows-2025
    steps:
      - uses: actions/checkout@v4
      - uses: erlef/setup-beam@v1
@@ -69,7 +69,9 @@ inputs:
    required: false

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

@@ -96,5 +98,5 @@ outputs:
    description: The commit unique id of the execution action version

 runs:
-  using: node20
+  using: node24
  main: dist/index.js
@@ -0,0 +1,66 @@
+{
+  "problemMatcher": [
+    {
+      "owner": "erlc-warning",
+      "severity": "warning",
+      "pattern": [
+        {
+          "regexp": "^(\\S+):(\\d+):(\\d+): [wW]arning: (.+)$",
+          "file": 1,
+          "line": 2,
+          "column": 3,
+          "message": 4
+        }
+      ]
+    },
+    {
+      "owner": "erlc-error",
+      "severity": "error",
+      "pattern": [
+        {
+          "regexp": "^(\\S+):(\\d+):(\\d+): (?![wW]arning)(.+)$",
+          "file": 1,
+          "line": 2,
+          "column": 3,
+          "message": 4
+        }
+      ]
+    },
+    {
+      "owner": "ct-failure",
+      "severity": "error",
+      "pattern": [
+        {
+          "regexp": "^(\\S+) failed on line (\\d+)$",
+          "file": 1,
+          "line": 2
+        },
+        {
+          "regexp": "^Reason: (.+)$",
+          "message": 1
+        }
+      ]
+    },
+    {
+      "owner": "eunit-failure",
+      "severity": "error",
+      "pattern": [
+        {
+          "regexp": "^\\S+: .+\\.\\.\\.\\*failed\\*$"
+        },
+        {
+          "regexp": "^in function .+ \\((.+), line (\\d+)\\)$",
+          "file": 1,
+          "line": 2
+        },
+        {
+          "regexp": "^in call from .+$"
+        },
+        {
+          "regexp": "^\\*\\*error:(.+)$",
+          "message": 1
+        }
+      ]
+    }
+  ]
+}
@@ -1,30 +1,27 @@
 import js from '@eslint/js'
 import globals from 'globals'
-import { defineConfig } from 'eslint/config'
-import eslintPluginYml from 'eslint-plugin-yml'
+import yml from 'eslint-plugin-yml'
+import * as yamlParser from 'yaml-eslint-parser'

-export default defineConfig([
-  ...eslintPluginYml.configs['flat/recommended'],
+export default [
+  js.configs.recommended,
  {
-    extends: ['js/recommended'],
+    languageOptions: {
+      ecmaVersion: 'latest',
+      sourceType: 'module',
+      globals: globals.node,
+    },
+  },
+  {
+    files: ['**/*.yml'],
+    languageOptions: {
+      parser: yamlParser,
+    },
    plugins: {
-      js,
+      yml,
    },
-    languageOptions: {
-      ecmaVersion: 2022,
-      globals: {
-        ...globals.node,
+    rules: {
+      ...yml.configs.recommended.rules,
    },
  },
-  },
-  {
-    extends: eslintPluginYml.configs['flat/recommended'],
-    files: ['*.yml'],
-    languageOptions: {
-      parserOptions: {
-        parser: 'yaml-eslint-parser',
-        defaultYAMLVersion: '1.2',
-      },
-    },
-  },
-])
+]
@@ -0,0 +1,66 @@
+{
+  "problemMatcher": [
+    {
+      "owner": "erlc-warning",
+      "severity": "warning",
+      "pattern": [
+        {
+          "regexp": "^(\\S+):(\\d+):(\\d+): [wW]arning: (.+)$",
+          "file": 1,
+          "line": 2,
+          "column": 3,
+          "message": 4
+        }
+      ]
+    },
+    {
+      "owner": "erlc-error",
+      "severity": "error",
+      "pattern": [
+        {
+          "regexp": "^(\\S+):(\\d+):(\\d+): (?![wW]arning)(.+)$",
+          "file": 1,
+          "line": 2,
+          "column": 3,
+          "message": 4
+        }
+      ]
+    },
+    {
+      "owner": "ct-failure",
+      "severity": "error",
+      "pattern": [
+        {
+          "regexp": "^(\\S+) failed on line (\\d+)$",
+          "file": 1,
+          "line": 2
+        },
+        {
+          "regexp": "^Reason: (.+)$",
+          "message": 1
+        }
+      ]
+    },
+    {
+      "owner": "eunit-failure",
+      "severity": "error",
+      "pattern": [
+        {
+          "regexp": "^\\S+: .+\\.\\.\\.\\*failed\\*$"
+        },
+        {
+          "regexp": "^in function .+ \\((.+), line (\\d+)\\)$",
+          "file": 1,
+          "line": 2
+        },
+        {
+          "regexp": "^in call from .+$"
+        },
+        {
+          "regexp": "^\\*\\*error:(.+)$",
+          "message": 1
+        }
+      ]
+    }
+  ]
+}
@@ -1,5 +1,6 @@
 {
  "name": "setup-beam",
+  "type": "module",
  "license": "MIT",
  "private": true,
  "scripts": {
@@ -16,25 +17,25 @@
    "build-dist": "npm run clean-dist && npm install && npm run build && npm run format && npm run lint"
  },
  "dependencies": {
-    "@actions/core": "1.11.1",
-    "@actions/exec": "1.1.1",
-    "@actions/tool-cache": "2.0.2",
-    "csv-parse": "5.6.0",
-    "semver": "7.7.2",
-    "lodash": "4.17.21"
+    "@actions/core": "3.0.0",
+    "@actions/exec": "3.0.0",
+    "@actions/tool-cache": "4.0.0",
+    "csv-parse": "6.2.1",
+    "semver": "7.7.4",
+    "smol-toml": "1.6.1"
  },
  "devDependencies": {
-    "@vercel/ncc": "0.38.3",
-    "eslint": "9.30.1",
-    "@eslint/js": "9.30.1",
-    "globals": "16.3.0",
-    "markdownlint-cli": "0.45.0",
-    "prettier": "3.6.2",
-    "shellcheck": "3.1.0",
-    "eslint-plugin-yml": "1.18.0",
+    "@eslint/js": "10.0.1",
+    "@vercel/ncc": "0.38.4",
+    "eslint": "10.6.0",
+    "eslint-plugin-yml": "3.3.1",
+    "globals": "17.7.0",
+    "markdownlint-cli": "0.48.0",
+    "prettier": "3.9.1",
+    "shellcheck": "4.1.0",
    "yarn": "1.22.22"
  },
  "engines": {
-    "node": ">=20"
+    "node": ">=24"
  }
 }
@@ -1,14 +1,18 @@
-const core = require('@actions/core')
-const { exec } = require('@actions/exec')
-const tc = require('@actions/tool-cache')
-const path = require('path')
-const semver = require('semver')
-const fs = require('fs')
-const os = require('os')
-const csv = require('csv-parse/sync')
-const _ = require('lodash')
+import path from 'node:path'
+import fs from 'node:fs'
+import os from 'node:os'
+import { fileURLToPath } from 'node:url'
+import * as core from '@actions/core'
+import { exec } from '@actions/exec'
+import * as tc from '@actions/tool-cache'
+import * as semver from 'semver'
+import * as csv from 'csv-parse/sync'
+import toml from 'smol-toml'
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url))

 const MAX_HTTP_RETRIES = 3
+const APPS = ['erlang', 'elixir', 'gleam', 'rebar']

 if (process.env.NODE_ENV !== 'test') {
  main().catch((err) => {
@@ -53,7 +57,7 @@ async function main() {
  await maybeInstallRebar3(rebar3Spec)

  // undefined is replaced by a function, post- main branch merge
-  const setupBeamVersion = 'fceaea9'
+  const setupBeamVersion = 'ea45c80'
  core.setOutput('setup-beam-version', setupBeamVersion)
 }

@@ -75,6 +79,7 @@ async function installOTP(otpSpec) {
    },
  })
  core.setOutput('otp-version', otpVersion)
+  maybeEnableProblemMatchers('erlang')
  core.endGroup()

  return otpVersion
@@ -96,7 +101,7 @@ async function maybeInstallElixir(elixirSpec) {
      },
    })
    core.setOutput('elixir-version', elixirVersion)
-    maybeEnableElixirProblemMatchers()
+    maybeEnableProblemMatchers('elixir')
    core.endGroup()

    installed = true
@@ -105,16 +110,18 @@ async function maybeInstallElixir(elixirSpec) {
  return installed
 }

-function maybeEnableElixirProblemMatchers() {
-  const disableProblemMatchers = getInput('disable_problem_matchers', false)
-  if (disableProblemMatchers === 'false') {
-    const elixirMatchers = path.join(
-      __dirname,
-      '..',
-      'matchers',
-      'elixir-matchers.json',
-    )
-    core.info(`##[add-matcher]${elixirMatchers}`)
+function problemMatchersEnabled() {
+  return getInput('disable_problem_matchers', false) === 'false'
+}
+
+// path.join with static strings helps ncc resolve and bundle the JSON files
+function maybeEnableProblemMatchers(language) {
+  if (problemMatchersEnabled()) {
+    const matcherFiles = {
+      erlang: path.join(`${__dirname}/../matchers/erlang-matchers.json`),
+      elixir: path.join(`${__dirname}/../matchers/elixir-matchers.json`),
+    }
+    core.info(`##[add-matcher]${matcherFiles[language]}`)
  }
 }

@@ -191,11 +198,21 @@ async function getOTPVersion(otpSpec0, osVersion) {
 }

 function requestedVersionFor(tool, version, originListing, mirrors) {
-  return (
-    `Requested ${tool} version (${version}) not found in version list, ` +
-    `at ${originListing}${mirrors ? `, with mirrors ${mirrors}` : ''}; ` +
-    "should you be using option 'version-type': 'strict'?"
-  )
+  const isVersionTypeStrict = isStrictVersion()
+
+  let versionType = 'loose'
+  if (isVersionTypeStrict) {
+    versionType = 'strict'
+  }
+
+  let ret =
+    `Requested ${versionType} ${tool} version (${version}) not found in version list, ` +
+    `at ${originListing}${mirrors ? `, with mirrors ${mirrors}` : ''}.`
+  if (!isVersionTypeStrict) {
+    ret = `${ret} Should you be using option 'version-type': 'strict'?`
+  }
+
+  return ret
 }

 const knownBranches = ['main', 'master', 'maint']
@@ -262,7 +279,7 @@ async function getElixirVersion(exSpec0) {
  if (!foundCombo) {
    throw new Error(
      `Requested Elixir / Erlang/OTP version (${exSpec0} / tried ${otpVersionsMajor}) not ` +
-        'found in version list (did you check Compatibility between Elixir and Erlang/OTP?).' +
+        'found in version list (did you check Compatibility between Elixir and Erlang/OTP?). ' +
        'Elixir and Erlang/OTP compatibility can be found at: ' +
        'https://hexdocs.pm/elixir/compatibility-and-deprecations.html',
    )
@@ -360,9 +377,7 @@ async function getOTPVersions(osVersion) {
      })
  } else if (process.platform === 'win32') {
    const otpArch = otpArchitecture()
-    const file_regex = new RegExp(
-      `^otp_win${_.escapeRegExp(otpArch)}_(.*).exe$`,
-    )
+    const file_regex = new RegExp(`^otp_win${RegExp.escape(otpArch)}_(.*).exe$`)
    otpVersionsListings.forEach((otpVersionsListing) => {
      otpVersionsListing
        .map((x) => x.assets)
@@ -566,7 +581,7 @@ function getVersionFromSpec(spec0, versions0) {
 }

 function maybeCoerced(v) {
-  let ret = null
+  let ret
  try {
    if (!isRC(v)) {
      ret = semver.coerce(v).version
@@ -643,18 +658,30 @@ function getRunnerOSArchitecture() {

 function getRunnerOSVersion() {
  // List from https://github.com/actions/runner-images?tab=readme-ov-file#available-images
+  // at e065a395d52f491c58eb8fba8ab1dde2c7cfada1
+  // Not considered, at the moment (though it might be easy to adapt to...):
+  // - ubuntu-slim
+  // - all macOS intel, large, and xlarge variants
+  // - all win arm variants
  const ImageOSToContainer = {
    ubuntu22: 'ubuntu-22.04',
+    'ubuntu22-arm64': 'ubuntu-22.04',
    ubuntu24: 'ubuntu-24.04',
-    win19: 'windows-2019',
+    'ubuntu24-arm64': 'ubuntu-24.04',
+    ubuntu26: 'ubuntu-26.04',
+    'ubuntu26-arm64': 'ubuntu-26.04',
    win22: 'windows-2022',
-    macos13: 'macOS-13',
+    win25: 'windows-2025',
+    'win25-vs2026': 'windows-2025',
    macos14: 'macOS-14',
    macos15: 'macOS-15',
+    macos26: 'macOS-26',
  }
  const deprecatedImageOSToContainer = {
    ubuntu18: 'ubuntu-18.04',
    ubuntu20: 'ubuntu-20.04',
+    win19: 'windows-2019',
+    macos13: 'macOS-13',
  }
  const containerFromEnvImageOS = ImageOSToContainer[process.env.ImageOS]
  if (!containerFromEnvImageOS) {
@@ -790,28 +817,14 @@ alongside ${alternativeName}=${alternativeValue} \
  return input
 }

-function parseVersionFile(versionFilePath0) {
-  const versionFilePath = path.resolve(
-    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}`)
+function parseToolVersionsFile(versionFilePath) {
  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(/\r?\n/).forEach((line) => {
    const appVersion = line.match(/^([^ ]+)[ ]+(ref:v?)?([^ #]+)/)
    if (appVersion) {
      const app = appVersion[1]
-      if (['erlang', 'elixir', 'gleam', 'rebar'].includes(app)) {
+      if (APPS.includes(app)) {
        const [, , , version] = appVersion
        core.info(`Consuming ${app} at version ${version}`)
        appVersions.set(app, version)
@@ -828,6 +841,46 @@ function parseVersionFile(versionFilePath0) {
  return appVersions
 }

+function parseMiseTomlFile(versionFilePath) {
+  const appVersions = new Map()
+  const miseToml = fs.readFileSync(versionFilePath, 'utf8')
+  const miseTomlParsed = toml.parse(miseToml)
+  for (const app in miseTomlParsed.tools) {
+    if (APPS.includes(app)) {
+      const appVersion = miseTomlParsed.tools[app]
+      const version =
+        typeof appVersion == 'object' ? appVersion.version : appVersion
+
+      core.info(`Consuming ${app} at version ${version}`)
+      appVersions.set(app, version)
+    }
+  }
+
+  return appVersions
+}
+
+function parseVersionFile(versionFilePath0) {
+  const versionFilePath = path.resolve(
+    process.env.GITHUB_WORKSPACE,
+    versionFilePath0,
+  )
+  if (!fs.existsSync(versionFilePath)) {
+    throw new Error(
+      `The specified version file, ${versionFilePath0}, does not exist`,
+    )
+  }
+
+  if (versionFilePath0.endsWith('.toml')) {
+    core.startGroup(
+      `Parsing ${path.basename(versionFilePath0)} file at ${versionFilePath0}`,
+    )
+    return parseMiseTomlFile(versionFilePath)
+  }
+
+  core.startGroup(`Parsing .tool-versions file at ${versionFilePath0}`)
+  return parseToolVersionsFile(versionFilePath)
+}
+
 function debugLog(groupName, message) {
  const group = `Debugging for ${groupName}`
  core.debug(
@@ -926,7 +979,7 @@ async function install(toolName, opts) {
            const otpArch = otpArchitecture()
            return (
              'https://github.com/erlang/otp/releases/download/' +
-              `OTP-${toolVersion}/otp_win${_.escapeRegExp(otpArch)}_${toolVersion}.exe`
+              `OTP-${toolVersion}/otp_win${otpArch}_${toolVersion}.exe`
            )
          },
          extract: async () => ['file', 'otp.exe'],
@@ -1010,12 +1063,14 @@ async function install(toolName, opts) {
        tool: 'Gleam',
        linux: {
          downloadToolURL: () => {
+            const arch = getRunnerOSArchitecture()
            let gz
            if (
              versionSpec === 'nightly' ||
              semver.gt(versionSpec, 'v0.22.1')
            ) {
-              gz = `gleam-${versionSpec}-x86_64-unknown-linux-musl.tar.gz`
+              const target = arch === 'arm64' ? 'aarch64' : 'x86_64'
+              gz = `gleam-${versionSpec}-${target}-unknown-linux-musl.tar.gz`
            } else {
              gz = `gleam-${versionSpec}-linux-amd64.tar.gz`
            }
@@ -1079,7 +1134,26 @@ async function install(toolName, opts) {
          },
        },
      }
-      installOpts.darwin = installOpts.linux
+      installOpts.darwin = {
+        downloadToolURL: () => {
+          const arch = getRunnerOSArchitecture()
+          let gz
+          if (versionSpec === 'nightly' || semver.gt(versionSpec, 'v0.22.1')) {
+            const target = arch === 'arm64' ? 'aarch64' : 'x86_64'
+            gz = `gleam-${versionSpec}-${target}-apple-darwin.tar.gz`
+          } else {
+            gz =
+              arch === 'arm64'
+                ? `gleam-${versionSpec}-macos-arm64.tar.gz`
+                : `gleam-${versionSpec}-macos.tar.gz`
+          }
+
+          return `https://github.com/gleam-lang/gleam/releases/download/${versionSpec}/${gz}`
+        },
+        extract: installOpts.linux.extract,
+        postExtract: installOpts.linux.postExtract,
+        reportVersion: installOpts.linux.reportVersion,
+      }
      break
    case 'rebar3':
      installOpts = {
@@ -1226,7 +1300,7 @@ function debugLoggingEnabled() {
  return !!process.env.RUNNER_DEBUG
 }

-module.exports = {
+export default {
  get,
  getElixirVersion,
  getGleamVersion,
@@ -1,3 +1,15 @@
+import assert from 'node:assert'
+import http from 'node:http'
+import fs from 'node:fs'
+import os from 'node:os'
+import path from 'node:path'
+import { describe, it } from 'node:test'
+import * as csv from 'csv-parse/sync'
+import elixirMatchers from '../matchers/elixir-matchers.json' with { type: 'json' }
+import erlangMatchers from '../matchers/erlang-matchers.json' with { type: 'json' }
+const { problemMatcher } = elixirMatchers
+const { problemMatcher: erlangProblemMatcher } = erlangMatchers
+
 process.env.NODE_ENV = 'test'

 simulateInput('otp-version', '25.1.2')
@@ -9,15 +21,7 @@ simulateInput('install-hex', 'true')
 simulateInput('github-token', process.env.GITHUB_TOKEN)
 simulateInput('hexpm-mirrors', 'https://builds.hex.pm', { multiline: true })

-const assert = require('assert')
-const http = require('http')
-const fs = require('fs')
-const os = require('os')
-const path = require('path')
-const setupBeam = require('../src/setup-beam')
-const { problemMatcher } = require('../matchers/elixir-matchers.json')
-const { describe, it } = require('node:test')
-const csv = require('csv-parse/sync')
+const { default: setupBeam } = await import('../src/setup-beam.js')

 const matrix = {
  otp: {
@@ -173,11 +177,8 @@ describe('.getOTPVersion(_) - Erlang', () => {
    'https://repo.hex.pm, https://cdn.jsdelivr.net/hex',
    { multiline: true },
  )
-  const previousRunnerArch = process.env.RUNNER_ARCH

  if (process.platform === 'linux') {
-    process.env.RUNNER_ARCH = 'X64'
-
    it('is Ok for known linux version', async () => {
      before = simulateInput('version-type', 'strict')
      spec = '27.0'
@@ -195,21 +196,21 @@ describe('.getOTPVersion(_) - Erlang', () => {
      assert.deepStrictEqual(got, expected)
      simulateInput('version-type', before)

-      spec = '19.3.x'
-      osVersion = 'ubuntu-16.04'
-      expected = 'OTP-19.3.6.13'
+      spec = '20.3.x'
+      osVersion = 'ubuntu-20.04'
+      expected = 'OTP-20.3.8.26'
      got = await setupBeam.getOTPVersion(spec, osVersion)
      assert.deepStrictEqual(got, expected)

-      spec = '^19.3.6'
-      osVersion = 'ubuntu-16.04'
-      expected = 'OTP-19.3.6.13'
+      spec = '^20.3.8'
+      osVersion = 'ubuntu-20.04'
+      expected = 'OTP-20.3.8.26'
      got = await setupBeam.getOTPVersion(spec, osVersion)
      assert.deepStrictEqual(got, expected)

-      spec = '^19.3'
-      osVersion = 'ubuntu-18.04'
-      expected = 'OTP-19.3.6.13'
+      spec = '^20.3'
+      osVersion = 'ubuntu-20.04'
+      expected = 'OTP-20.3.8.26'
      got = await setupBeam.getOTPVersion(spec, osVersion)
      assert.deepStrictEqual(got, expected)

@@ -272,7 +273,7 @@ describe('.getOTPVersion(_) - Erlang', () => {
      assert.deepStrictEqual(got, expected)

      spec = '23.0'
-      osVersion = 'windows-2019'
+      osVersion = 'windows-2022'
      expected = '23.0.4'
      got = await setupBeam.getOTPVersion(spec, osVersion)
      assert.deepStrictEqual(got, expected)
@@ -293,7 +294,7 @@ describe('.getOTPVersion(_) - Erlang', () => {
      assert.deepStrictEqual(got, expected)

      spec = '23.0'
-      osVersion = 'windows-2019'
+      osVersion = 'windows-2022'
      expected = '23.0.4'
      got = await setupBeam.getOTPVersion(spec, osVersion)
      assert.deepStrictEqual(got, expected)
@@ -305,6 +306,7 @@ describe('.getOTPVersion(_) - Erlang', () => {
  if (process.platform === 'linux') {
    it('is main-... only if strict/maint-... is used as input', async () => {
      const arm64Options = setupBeam.githubARMRunnerArchs()
+      const previousRunnerArch = process.env.RUNNER_ARCH
      process.env.RUNNER_ARCH =
        arm64Options[Math.floor(Math.random() * arm64Options.length)]

@@ -340,6 +342,7 @@ describe('.getOTPVersion(_) - Erlang', () => {

    it('is Ok for known linux ARM64 version', async () => {
      const arm64Options = setupBeam.githubARMRunnerArchs()
+      const previousRunnerArch = process.env.RUNNER_ARCH
      process.env.RUNNER_ARCH =
        arm64Options[Math.floor(Math.random() * arm64Options.length)]

@@ -400,10 +403,13 @@ describe('.getOTPVersion(_) - Erlang', () => {
      expected = 'master'
      got = await setupBeam.getOTPVersion(spec, osVersion)
      assert.deepStrictEqual(got, expected)
+
+      process.env.RUNNER_ARCH = previousRunnerArch
    })

    it('is Ok for known linux AMD64 version', async () => {
      const amd64Options = setupBeam.githubAMDRunnerArchs()
+      const previousRunnerArch = process.env.RUNNER_ARCH
      process.env.RUNNER_ARCH =
        amd64Options[Math.floor(Math.random() * amd64Options.length)]

@@ -482,12 +488,15 @@ describe('.getOTPVersion(_) - Erlang', () => {
      expected = 'master'
      got = await setupBeam.getOTPVersion(spec, osVersion)
      assert.deepStrictEqual(got, expected)
+
+      process.env.RUNNER_ARCH = previousRunnerArch
    })
  }

  if (process.platform === 'darwin') {
    it('is main-... only if strict/maint-... is used as input', async () => {
      const arm64Options = setupBeam.githubARMRunnerArchs()
+      const previousRunnerArch = process.env.RUNNER_ARCH
      process.env.RUNNER_ARCH =
        arm64Options[Math.floor(Math.random() * arm64Options.length)]

@@ -517,6 +526,7 @@ describe('.getOTPVersion(_) - Erlang', () => {

    it('is Ok for known macos ARM64 version', async () => {
      const arm64Options = setupBeam.githubARMRunnerArchs()
+      const previousRunnerArch = process.env.RUNNER_ARCH
      process.env.RUNNER_ARCH =
        arm64Options[Math.floor(Math.random() * arm64Options.length)]

@@ -527,10 +537,13 @@ describe('.getOTPVersion(_) - Erlang', () => {
      got = await setupBeam.getOTPVersion(spec, osVersion)
      assert.deepStrictEqual(got, expected)
      simulateInput('version-type', before)
+
+      process.env.RUNNER_ARCH = previousRunnerArch
    })

    it('is Ok for known macos AMD64 version', async () => {
      const amd64Options = setupBeam.githubARMRunnerArchs()
+      const previousRunnerArch = process.env.RUNNER_ARCH
      process.env.RUNNER_ARCH =
        amd64Options[Math.floor(Math.random() * amd64Options.length)]

@@ -541,11 +554,12 @@ describe('.getOTPVersion(_) - Erlang', () => {
      got = await setupBeam.getOTPVersion(spec, osVersion)
      assert.deepStrictEqual(got, expected)
      simulateInput('version-type', before)
+
+      process.env.RUNNER_ARCH = previousRunnerArch
    })
  }

  simulateInput('hexpm-mirrors', hexMirrors, { multiline: true })
-  process.env.RUNNER_ARCH = previousRunnerArch
 })

 describe('OTP arch-specific install', () => {
@@ -568,6 +582,7 @@ describe('OTP arch-specific install', () => {
        `Fetching OTP Version with invalid Github runner architecture is supposed to fail`,
      )
    }
+
    process.env.RUNNER_ARCH = previousRunnerArch
  })
 })
@@ -578,11 +593,8 @@ describe('.getOTPVersion(_) - Elixir', () => {
  let spec
  let otpVersion
  let before
-  const previousRunnerArch = process.env.RUNNER_ARCH

  if (process.platform === 'linux') {
-    process.env.RUNNER_ARCH = 'X64'
-
    it('returns the expected value', async () => {
      spec = '1.18.x'
      otpVersion = 'OTP-27'
@@ -613,9 +625,9 @@ describe('.getOTPVersion(_) - Elixir', () => {
      assert.deepStrictEqual(got, expected)

      before = simulateInput('version-type', 'strict')
-      spec = '1.17'
+      spec = '1.19'
      otpVersion = 'master'
-      expected = 'v1.17-otp-27'
+      expected = 'v1.19-otp-28'
      await setupBeam.installOTP(otpVersion)
      got = await setupBeam.getElixirVersion(spec, otpVersion)
      assert.deepStrictEqual(got, expected)
@@ -640,8 +652,6 @@ describe('.getOTPVersion(_) - Elixir', () => {
      simulateInput('version-type', before)
    })
  }
-
-  process.env.RUNNER_ARCH = previousRunnerArch
 })

 describe('.getOTPVersion(_) - Gleam', () => {
@@ -685,18 +695,18 @@ describe('.getOTPVersion(_) - rebar3', () => {
  let spec

  it('returns the expected value', async () => {
-    spec = '3.10.x'
-    expected = '3.10.0'
+    spec = '3.26.x'
+    expected = '3.26.0'
    got = await setupBeam.getRebar3Version(spec)
    assert.deepStrictEqual(got, expected)

-    spec = '3.11'
-    expected = '3.11.1'
+    spec = '3.25'
+    expected = '3.25.1'
    got = await setupBeam.getRebar3Version(spec)
    assert.deepStrictEqual(got, expected)

-    spec = '3.10'
-    expected = '3.10.0'
+    spec = '3.26'
+    expected = '3.26.0'
    got = await setupBeam.getRebar3Version(spec)
    assert.deepStrictEqual(got, expected)
  })
@@ -962,13 +972,13 @@ describe('.getVersionFromSpec(_)', () => {
    assert.deepStrictEqual(got, expected)

    spec = 'latest'
-    expected = '3.23.0'
+    expected = '3.27.0'
    got = setupBeam.getVersionFromSpec(spec, matrix.rebar3)
    assert.deepStrictEqual(got, expected)
  })
 })

-describe('version file', () => {
+describe('.tool-versions file', () => {
  const otpVersion = unsimulateInput('otp-version')
  const elixirVersion = unsimulateInput('elixir-version')
  const gleamVersion = unsimulateInput('gleam-version')
@@ -1017,6 +1027,57 @@ gleam ${gleam} \n`
  simulateInput('gleam-version', gleamVersion)
 })

+describe('mise.toml file', () => {
+  const otpVersion = unsimulateInput('otp-version')
+  const elixirVersion = unsimulateInput('elixir-version')
+  const gleamVersion = unsimulateInput('gleam-version')
+
+  it('is parsed correctly', async () => {
+    const erlang = '27.3.4.1'
+    const elixir = '1.18.4'
+    const gleam = '1.9.1'
+    let miseToml = `[tools]
+"erlang" = "${erlang}"
+elixir = { version = "${elixir}", postinstall="mix deps.get" }  # comment, with space and ref:
+"not-gleam" = 0.23 # not picked up
+"gleam" = "${gleam}"
+[env]
+_.file = ".env"\n`
+    const filename = 'test/mise.toml'
+    if (process.platform === 'win32') {
+      // Force \r\n to test in Windows
+      miseToml = miseToml.replace(/\n/g, '\r\n')
+    }
+    fs.writeFileSync(filename, miseToml)
+    process.env.GITHUB_WORKSPACE = ''
+    const appVersions = setupBeam.parseVersionFile(filename)
+    assert.strictEqual(appVersions.get('erlang'), erlang)
+    assert.strictEqual(appVersions.get('elixir'), elixir)
+
+    const absoluteFilename = path.join(os.tmpdir(), 'mise.toml')
+    fs.writeFileSync(absoluteFilename, miseToml)
+
+    process.env.GITHUB_WORKSPACE = process.cwd()
+    const absoluteAppVersions = setupBeam.parseVersionFile(absoluteFilename)
+    assert.strictEqual(absoluteAppVersions.get('erlang'), erlang)
+    assert.strictEqual(absoluteAppVersions.get('elixir'), elixir)
+
+    assert.ok(async () => {
+      await setupBeam.install('otp', { toolVersion: erlang })
+    })
+    assert.ok(async () => {
+      await setupBeam.install('elixir', { toolVersion: elixir })
+    })
+    assert.ok(async () => {
+      await setupBeam.install('gleam', { toolVersion: gleam })
+    })
+  })
+
+  simulateInput('otp-version', otpVersion)
+  simulateInput('elixir-version', elixirVersion)
+  simulateInput('gleam-version', gleamVersion)
+})
+
 describe('.get(_)', () => {
  it('retries as expected', async () => {
    let attempt = 0
@@ -1108,6 +1169,98 @@ describe("Elixir Mix matcher's", () => {
  })
 })

+describe("Erlang matcher's", () => {
+  it('erlc errors are properly matched', () => {
+    const [matcher] = erlangProblemMatcher.find(
+      ({ owner }) => owner === 'erlc-error',
+    ).pattern
+
+    const output = 'src/mymod.erl:42:5: head mismatch'
+    const match = output.match(matcher.regexp)
+    assert.equal(match[1], 'src/mymod.erl')
+    assert.equal(match[2], '42')
+    assert.equal(match[3], '5')
+    assert.equal(match[4], 'head mismatch')
+  })
+
+  it('erlc errors do not match warnings', () => {
+    const [matcher] = erlangProblemMatcher.find(
+      ({ owner }) => owner === 'erlc-error',
+    ).pattern
+
+    const output = 'src/mymod.erl:42:5: Warning: variable X is unused'
+    const match = output.match(matcher.regexp)
+    assert.equal(match, null)
+  })
+
+  it('erlc warnings are properly matched', () => {
+    const [matcher] = erlangProblemMatcher.find(
+      ({ owner }) => owner === 'erlc-warning',
+    ).pattern
+
+    const output = 'src/mymod.erl:10:3: Warning: variable X is unused'
+    const match = output.match(matcher.regexp)
+    assert.equal(match[1], 'src/mymod.erl')
+    assert.equal(match[2], '10')
+    assert.equal(match[3], '3')
+    assert.equal(match[4], 'variable X is unused')
+  })
+
+  it('dialyzer warnings are matched via erlc patterns', () => {
+    const [matcher] = erlangProblemMatcher.find(
+      ({ owner }) => owner === 'erlc-warning',
+    ).pattern
+
+    const output =
+      'src/mymod.erl:25:1: warning: Function foo/0 has no local return'
+    const match = output.match(matcher.regexp)
+    assert.equal(match[1], 'src/mymod.erl')
+    assert.equal(match[2], '25')
+    assert.equal(match[3], '1')
+    assert.equal(match[4], 'Function foo/0 has no local return')
+  })
+
+  it('CT failures are properly matched', () => {
+    const [filePattern, reasonPattern] = erlangProblemMatcher.find(
+      ({ owner }) => owner === 'ct-failure',
+    ).pattern
+
+    const firstOutput = 'test/mymod_SUITE.erl failed on line 55'
+    const secondOutput = 'Reason: {badmatch,{error,timeout}}'
+
+    const fileMatch = firstOutput.match(filePattern.regexp)
+    assert.equal(fileMatch[1], 'test/mymod_SUITE.erl')
+    assert.equal(fileMatch[2], '55')
+
+    const reasonMatch = secondOutput.match(reasonPattern.regexp)
+    assert.equal(reasonMatch[1], '{badmatch,{error,timeout}}')
+  })
+
+  it('EUnit failures are properly matched', () => {
+    const [headerPattern, funcPattern, callPattern, errorPattern] =
+      erlangProblemMatcher.find(
+        ({ owner }) => owner === 'eunit-failure',
+      ).pattern
+
+    const header = 'mymod_test: hello_test....*failed*'
+    const func =
+      'in function mymod_test:hello_test/0 (test/mymod_test.erl, line 12)'
+    const call = 'in call from mymod_test:hello_test/0'
+    const error = '**error:{badmatch,false}'
+
+    assert.ok(header.match(headerPattern.regexp))
+
+    const funcMatch = func.match(funcPattern.regexp)
+    assert.equal(funcMatch[1], 'test/mymod_test.erl')
+    assert.equal(funcMatch[2], '12')
+
+    assert.ok(call.match(callPattern.regexp))
+
+    const errorMatch = error.match(errorPattern.regexp)
+    assert.equal(errorMatch[1], '{badmatch,false}')
+  })
+})
+
 function unsimulateInput(key) {
  return simulateInput(key, '')
 }