.eslintignore

@@ -0,0 +1,3 @@
+/dist/**
+/coverage/**
+/node_modules/**

.eslintrc.json

@@ -0,0 +1,24 @@
+{
+  "env": {
+    "node": true,
+    "es6": true,
+    "jest": true
+  },
+  "extends": [
+    "eslint:recommended",
+    "plugin:@typescript-eslint/eslint-recommended",
+    "plugin:@typescript-eslint/recommended",
+    "plugin:jest/recommended",
+    "plugin:prettier/recommended"
+  ],
+  "parser": "@typescript-eslint/parser",
+  "parserOptions": {
+    "ecmaVersion": "latest",
+    "sourceType": "module"
+  },
+  "plugins": [
+    "@typescript-eslint",
+    "jest",
+    "prettier"
+  ]
+}

.github/workflows/ci.yml

@@ -5,7 +5,6 @@ concurrency:
   cancel-in-progress: true
 
 on:
-  workflow_dispatch:
   schedule:
     - cron: '0 10 * * *'
   push:
@@ -22,7 +21,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v4
       -
         name: Set up QEMU
         id: qemu
@@ -45,7 +44,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v4
       -
         name: Set up QEMU
         id: qemu
@@ -62,7 +61,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v4
       -
         name: Stop docker
         run: |
@@ -92,7 +91,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v4
       -
         name: Set up QEMU
         id: qemu
@@ -103,22 +102,3 @@ jobs:
       -
         name: Available platforms
         run: echo ${{ steps.qemu.outputs.platforms }}
-
-  version:
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        image:
-          - tonistiigi/binfmt:master
-          - tonistiigi/binfmt:latest
-          - tonistiigi/binfmt:qemu-v7.0.0
-    steps:
-      -
-        name: Checkout
-        uses: actions/checkout@v6
-      -
-        name: Set up QEMU
-        uses: ./
-        with:
-          image: ${{ matrix.image }}

.github/workflows/codeql.yml

@@ -1,45 +0,0 @@
-name: codeql
-
-on:
-  push:
-    branches:
-      - 'master'
-      - 'releases/v*'
-  pull_request:
-
-permissions:
-  actions: read
-  contents: read
-  security-events: write
-
-env:
-  NODE_VERSION: "24"
-
-jobs:
-  analyze:
-    runs-on: ubuntu-latest
-    steps:
-      -
-        name: Checkout
-        uses: actions/checkout@v6
-      -
-        name: Enable corepack
-        run: |
-          corepack enable
-          yarn --version
-      -
-        name: Set up Node
-        uses: actions/setup-node@v6
-        with:
-          node-version: ${{ env.NODE_VERSION }}
-      -
-        name: Initialize CodeQL
-        uses: github/codeql-action/init@v4
-        with:
-          languages: javascript-typescript
-          build-mode: none
-      -
-        name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@v4
-        with:
-          category: "/language:javascript-typescript"

.github/workflows/pr-assign-author.yml

@@ -1,17 +0,0 @@
-name: pr-assign-author
-
-permissions:
-  contents: read
-
-on:
-  pull_request_target:
-    types:
-      - opened
-      - reopened
-
-jobs:
-  run:
-    uses: crazy-max/.github/.github/workflows/pr-assign-author.yml@20ef82212dc54bab5749f5e05576ca6d3c8a5773 # v1.1.0
-    permissions:
-      contents: read
-      pull-requests: write

.github/workflows/publish.yml

@@ -15,7 +15,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v4
       -
         name: Publish
         uses: actions/publish-immutable-action@v0.0.4

.github/workflows/test.yml

@@ -15,14 +15,10 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      -
-        name: Checkout
-        uses: actions/checkout@v6
       -
         name: Test
-        uses: docker/bake-action@v7
+        uses: docker/bake-action@v6
         with:
-          source: .
           targets: test
       -
         name: Upload coverage

.github/workflows/update-dist.yml

@@ -1,49 +0,0 @@
-name: update-dist
-
-on:
-  pull_request:
-    types:
-      - opened
-      - synchronize
-
-jobs:
-  update-dist:
-    if: github.actor == 'dependabot[bot]'
-    runs-on: ubuntu-latest
-    steps:
-      -
-        name: GitHub auth token from GitHub App
-        id: docker-read-app
-        uses: actions/create-github-app-token@v3
-        with:
-          app-id: ${{ secrets.GHACTIONS_REPO_WRITE_APP_ID }}
-          private-key: ${{ secrets.GHACTIONS_REPO_WRITE_APP_PRIVATE_KEY }}
-          owner: docker
-      -
-        name: Checkout
-        uses: actions/checkout@v6
-        with:
-          ref: ${{ github.event.pull_request.head.ref }}
-          fetch-depth: 0
-          token: ${{ steps.docker-read-app.outputs.token || github.token }}
-      -
-        name: Build
-        uses: docker/bake-action@v7
-        with:
-          source: .
-          targets: build
-      -
-        name: Commit and push dist
-        run: |
-          if [ -n "$(git status --porcelain -- dist)" ]; then
-            (
-              set -x
-              git config user.name "github-actions[bot]"
-              git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
-              git add dist
-              git commit -m "chore: update generated content"
-              git push
-            )
-          else
-            echo "No changes in dist"
-          fi

.github/workflows/validate.yml

@@ -15,15 +15,15 @@ jobs:
   prepare:
     runs-on: ubuntu-latest
     outputs:
-      matrix: ${{ steps.generate.outputs.matrix }}
+      targets: ${{ steps.generate.outputs.targets }}
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v4
       -
-        name: Generate matrix
+        name: List targets
         id: generate
-        uses: docker/bake-action/subaction/matrix@v7
+        uses: docker/bake-action/subaction/list-targets@v6
         with:
           target: validate
 
@@ -34,10 +34,10 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        include: ${{ fromJson(needs.prepare.outputs.matrix) }}
+        target: ${{ fromJson(needs.prepare.outputs.targets) }}
     steps:
       -
         name: Validate
-        uses: docker/bake-action@v7
+        uses: docker/bake-action@v6
         with:
           targets: ${{ matrix.target }}

.prettierrc.json

@@ -6,5 +6,6 @@
   "singleQuote": true,
   "trailingComma": "none",
   "bracketSpacing": false,
-  "arrowParens": "avoid"
+  "arrowParens": "avoid",
+  "parser": "typescript"
 }

.yarnrc.yml

@@ -1,9 +1,3 @@
-# https://yarnpkg.com/configuration/yarnrc
-
-compressionLevel: mixed
-enableGlobalCache: false
-enableHardenedMode: true
-
 logFilters:
   - code: YN0013
     level: discard
@@ -11,9 +5,9 @@ logFilters:
     level: discard
   - code: YN0076
     level: discard
-  - code: YN0086
-    level: discard
 
 nodeLinker: node-modules
 
-npmAuthToken: "${NODE_AUTH_TOKEN:-fallback}"
+plugins:
+  - path: .yarn/plugins/@yarnpkg/plugin-interactive-tools.cjs
+    spec: "@yarnpkg/plugin-interactive-tools"

README.md

@@ -32,22 +32,9 @@ jobs:
     steps:
       -
         name: Set up QEMU
-        uses: docker/setup-qemu-action@v4
+        uses: docker/setup-qemu-action@v3
 ```
 
-> [!NOTE]
-> If you are using [`docker/setup-buildx-action`](https://github.com/docker/setup-buildx-action),
-> this action should come before it:
-> 
-> ```yaml
->     -
->       name: Set up QEMU
->       uses: docker/setup-qemu-action@v4
->     -
->       name: Set up Docker Buildx
->       uses: docker/setup-buildx-action@v4
-> ```
-
 ## Customizing
 
 ### inputs

__tests__/context.test.ts

@@ -1,6 +1,6 @@
-import {beforeEach, describe, expect, test} from 'vitest';
+import {beforeEach, describe, expect, test} from '@jest/globals';
 
-import * as context from '../src/context.js';
+import * as context from '../src/context';
 
 describe('getInputs', () => {
   beforeEach(() => {
@@ -13,7 +13,7 @@ describe('getInputs', () => {
   });
 
   // prettier-ignore
-  const cases: [number, Map<string, string>, context.Inputs][] = [
+  test.each([
     [
       0,
       new Map<string, string>([
@@ -23,7 +23,7 @@ describe('getInputs', () => {
         image: 'docker.io/tonistiigi/binfmt:latest',
         platforms: 'all',
         cacheImage: true,
-      }
+      } as context.Inputs
     ],
     [
       1,
@@ -36,7 +36,7 @@ describe('getInputs', () => {
         image: 'docker/binfmt:latest',
         platforms: 'arm64,riscv64,arm',
         cacheImage: false,
-      }
+      } as context.Inputs
     ],
     [
       2,
@@ -48,11 +48,10 @@ describe('getInputs', () => {
         image: 'docker.io/tonistiigi/binfmt:latest',
         platforms: 'arm64,riscv64,arm',
         cacheImage: true,
-      }
+      } as context.Inputs
     ]
-  ];
-  test.each(cases)(
-    '[%d] given %o as inputs, returns %o',
+  ])(
+    '[%d] given %p as inputs, returns %p',
     async (num: number, inputs: Map<string, string>, expected: context.Inputs) => {
       inputs.forEach((value: string, name: string) => {
         setInput(name, value);

__tests__/setup.unit.ts

@@ -1,12 +0,0 @@
-import fs from 'node:fs';
-import os from 'node:os';
-import path from 'node:path';
-
-const tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'docker-setup-qemu-action-'));
-
-process.env = Object.assign({}, process.env, {
-  TEMP: tmpDir,
-  GITHUB_REPOSITORY: 'docker/setup-qemu-action',
-  RUNNER_TEMP: path.join(tmpDir, 'runner-temp'),
-  RUNNER_TOOL_CACHE: path.join(tmpDir, 'runner-tool-cache')
-});

action.yml

@@ -25,6 +25,6 @@ outputs:
     description: 'Available platforms (comma separated)'
 
 runs:
-  using: 'node24'
+  using: 'node20'
   main: 'dist/index.js'
   post: 'dist/index.js'

dev.Dockerfile

@@ -1,13 +1,12 @@
 # syntax=docker/dockerfile:1
 
-ARG NODE_VERSION=24
+ARG NODE_VERSION=20
 
 FROM node:${NODE_VERSION}-alpine AS base
-RUN apk add --no-cache cpio findutils git rsync
+RUN apk add --no-cache cpio findutils git
 WORKDIR /src
 RUN --mount=type=bind,target=.,rw \
   --mount=type=cache,target=/src/.yarn/cache <<EOT
-  set -e
   corepack enable
   yarn --version
   yarn config set --home enableTelemetry 0
@@ -35,27 +34,18 @@ RUN --mount=type=bind,target=.,rw <<EOT
 EOT
 
 FROM deps AS build
-RUN --mount=target=/context \
+RUN --mount=type=bind,target=.,rw \
   --mount=type=cache,target=/src/.yarn/cache \
-  --mount=type=cache,target=/src/node_modules <<EOT
-  set -e
-  rsync -a /context/. .
-  rm -rf dist
-  yarn run build
-  mkdir /out
-  cp -r dist /out
-EOT
+  --mount=type=cache,target=/src/node_modules \
+  yarn run build && mkdir /out && cp -Rf dist /out/
 
 FROM scratch AS build-update
 COPY --from=build /out /
 
 FROM build AS build-validate
-RUN --mount=target=/context \
-  --mount=target=.,type=tmpfs <<EOT
+RUN --mount=type=bind,target=.,rw <<EOT
   set -e
-  rsync -a /context/. .
   git add -A
-  rm -rf dist
   cp -rf /out/* .
   if [ -n "$(git status --porcelain -- dist)" ]; then
     echo >&2 'ERROR: Build result differs. Please build first with "docker buildx bake build"'
@@ -68,7 +58,8 @@ FROM deps AS format
 RUN --mount=type=bind,target=.,rw \
   --mount=type=cache,target=/src/.yarn/cache \
   --mount=type=cache,target=/src/node_modules \
-  yarn run format && mkdir /out && find . -name '*.ts' -not -path './node_modules/*' -not -path './.yarn/*' | cpio -pdm /out
+  yarn run format \
+  && mkdir /out && find . -name '*.ts' -not -path './node_modules/*' -not -path './.yarn/*' | cpio -pdm /out
 
 FROM scratch AS format-update
 COPY --from=format /out /
@@ -83,7 +74,7 @@ FROM deps AS test
 RUN --mount=type=bind,target=.,rw \
   --mount=type=cache,target=/src/.yarn/cache \
   --mount=type=cache,target=/src/node_modules \
-  yarn run test --coverage --coverage.reportsDirectory=/tmp/coverage
+  yarn run test --coverage --coverageDirectory=/tmp/coverage
 
 FROM scratch AS test-coverage
 COPY --from=test /tmp/coverage /

dist/package.json

@@ -1,3 +0,0 @@
-{
-  "type": "module"
-}

eslint.config.mjs

@@ -1,52 +0,0 @@
-import {defineConfig} from 'eslint/config';
-import js from '@eslint/js';
-import tseslint from '@typescript-eslint/eslint-plugin';
-import vitest from '@vitest/eslint-plugin';
-import globals from 'globals';
-import eslintConfigPrettier from 'eslint-config-prettier/flat';
-import eslintPluginPrettier from 'eslint-plugin-prettier';
-
-export default defineConfig([
-  {
-    ignores: ['.yarn/**/*', 'coverage/**/*', 'dist/**/*']
-  },
-  js.configs.recommended,
-  ...tseslint.configs['flat/recommended'],
-  eslintConfigPrettier,
-  {
-    languageOptions: {
-      globals: {
-        ...globals.node
-      }
-    }
-  },
-  {
-    files: ['__tests__/**'],
-    ...vitest.configs.recommended,
-    languageOptions: {
-      globals: {
-        ...globals.node,
-        ...vitest.environments.env.globals
-      }
-    },
-    rules: {
-      ...vitest.configs.recommended.rules,
-      'vitest/no-conditional-expect': 'error',
-      'vitest/no-disabled-tests': 0
-    }
-  },
-  {
-    plugins: {
-      prettier: eslintPluginPrettier
-    },
-    rules: {
-      'prettier/prettier': 'error',
-      '@typescript-eslint/no-require-imports': [
-        'error',
-        {
-          allowAsImport: true
-        }
-      ]
-    }
-  }
-]);

jest.config.ts

@@ -0,0 +1,29 @@
+import fs from 'fs';
+import os from 'os';
+import path from 'path';
+
+const tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'docker-setup-qemu-action-'));
+
+process.env = Object.assign({}, process.env, {
+  TEMP: tmpDir,
+  GITHUB_REPOSITORY: 'docker/setup-qemu-action',
+  RUNNER_TEMP: path.join(tmpDir, 'runner-temp'),
+  RUNNER_TOOL_CACHE: path.join(tmpDir, 'runner-tool-cache')
+}) as {
+  [key: string]: string;
+};
+
+module.exports = {
+  clearMocks: true,
+  moduleFileExtensions: ['js', 'ts'],
+  testMatch: ['**/*.test.ts'],
+  transform: {
+    '^.+\\.ts$': 'ts-jest'
+  },
+  moduleNameMapper: {
+    '^csv-parse/sync': '<rootDir>/node_modules/csv-parse/dist/cjs/sync.cjs'
+  },
+  collectCoverageFrom: ['src/**/{!(main.ts),}.ts'],
+  coveragePathIgnorePatterns: ['lib/', 'node_modules/', '__mocks__/', '__tests__/'],
+  verbose: true
+};

package.json

@@ -1,13 +1,16 @@
 {
   "name": "docker-setup-qemu",
   "description": "Install QEMU static binaries",
-  "type": "module",
   "main": "src/main.ts",
   "scripts": {
     "build": "ncc build src/main.ts --source-map --minify --license licenses.txt",
-    "lint": "eslint --max-warnings=0 .",
-    "format": "eslint --fix .",
-    "test": "vitest run"
+    "lint": "yarn run prettier && yarn run eslint",
+    "format": "yarn run prettier:fix && yarn run eslint:fix",
+    "eslint": "eslint --max-warnings=0 .",
+    "eslint:fix": "eslint --fix .",
+    "prettier": "prettier --check \"./**/*.ts\"",
+    "prettier:fix": "prettier --write \"./**/*.ts\"",
+    "test": "jest"
   },
   "repository": {
     "type": "git",
@@ -20,25 +23,24 @@
   ],
   "author": "Docker Inc.",
   "license": "Apache-2.0",
-  "packageManager": "yarn@4.9.2",
+  "packageManager": "yarn@3.6.3",
   "dependencies": {
-    "@actions/core": "^3.0.0",
-    "@docker/actions-toolkit": "^0.79.0"
+    "@actions/core": "^1.11.1",
+    "@docker/actions-toolkit": "^0.56.0"
   },
   "devDependencies": {
-    "@eslint/js": "^9.39.3",
-    "@types/node": "^24.11.0",
-    "@typescript-eslint/eslint-plugin": "^8.56.1",
-    "@typescript-eslint/parser": "^8.56.1",
-    "@vercel/ncc": "^0.38.4",
-    "@vitest/coverage-v8": "^4.0.18",
-    "@vitest/eslint-plugin": "^1.6.9",
-    "eslint": "^9.39.3",
-    "eslint-config-prettier": "^10.1.8",
-    "eslint-plugin-prettier": "^5.5.5",
-    "globals": "^17.3.0",
-    "prettier": "^3.8.1",
-    "typescript": "^5.9.3",
-    "vitest": "^4.0.18"
+    "@types/node": "^20.12.12",
+    "@typescript-eslint/eslint-plugin": "^7.9.0",
+    "@typescript-eslint/parser": "^7.9.0",
+    "@vercel/ncc": "^0.38.1",
+    "eslint": "^8.57.0",
+    "eslint-config-prettier": "^9.1.0",
+    "eslint-plugin-jest": "^28.5.0",
+    "eslint-plugin-prettier": "^5.1.3",
+    "jest": "^29.7.0",
+    "prettier": "^3.2.5",
+    "ts-jest": "^29.1.2",
+    "ts-node": "^10.9.2",
+    "typescript": "^5.4.5"
   }
 }

src/context.ts

@@ -1,5 +1,5 @@
 import * as core from '@actions/core';
-import {Util} from '@docker/actions-toolkit/lib/util.js';
+import {Util} from '@docker/actions-toolkit/lib/util';
 
 export interface Inputs {
   image: string;

src/main.ts

@@ -1,9 +1,8 @@
+import * as context from './context';
 import * as core from '@actions/core';
 import * as actionsToolkit from '@docker/actions-toolkit';
 
-import {Docker} from '@docker/actions-toolkit/lib/docker/docker.js';
-
-import * as context from './context.js';
+import {Docker} from '@docker/actions-toolkit/lib/docker/docker';
 
 interface Platforms {
   supported: string[];
@@ -34,16 +33,6 @@ actionsToolkit.run(
       });
     });
 
-    await core.group(`Binfmt version`, async () => {
-      await Docker.getExecOutput(['run', '--rm', '--privileged', input.image, '--version'], {
-        ignoreReturnCode: true
-      }).then(res => {
-        if (res.stderr.length > 0 && res.exitCode != 0) {
-          throw new Error(res.stderr.match(/(.*)\s*$/)?.[0]?.trim() ?? 'unknown error');
-        }
-      });
-    });
-
     await core.group(`Installing QEMU static binaries`, async () => {
       await Docker.getExecOutput(['run', '--rm', '--privileged', input.image, '--install', input.platforms], {
         ignoreReturnCode: true

tsconfig.json

@@ -1,8 +1,9 @@
 {
   "compilerOptions": {
-    "module": "nodenext",
-    "moduleResolution": "nodenext",
     "esModuleInterop": true,
+    "target": "es6",
+    "module": "commonjs",
+    "strict": true,
     "newLine": "lf",
     "outDir": "./lib",
     "rootDir": "./src",
@@ -11,7 +12,10 @@
     "resolveJsonModule": true,
     "useUnknownInCatchVariables": false,
   },
-  "include": [
-    "src/**/*.ts"
+  "exclude": [
+    "./__tests__/**/*",
+    "./lib/**/*",
+    "node_modules",
+    "jest.config.ts"
   ]
 }

vitest.config.ts

@@ -1,16 +0,0 @@
-import {defineConfig} from 'vitest/config';
-
-export default defineConfig({
-  test: {
-    clearMocks: true,
-    environment: 'node',
-    setupFiles: ['./__tests__/setup.unit.ts'],
-    include: ['**/*.test.ts'],
-    coverage: {
-      provider: 'v8',
-      reporter: ['clover'],
-      include: ['src/**/*.ts'],
-      exclude: ['src/**/main.ts']
-    }
-  }
-});