.prettierrc.json

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

__tests__/context.test.ts

@@ -1,40 +1,38 @@
-import {beforeEach, describe, expect, test, vi} from 'vitest';
+import {beforeEach, describe, expect, jest, test} from '@jest/globals';
 import * as fs from 'fs';
-import * as os from 'os';
 import * as path from 'path';
-
 import {Buildx} from '@docker/actions-toolkit/lib/buildx/buildx';
 import {Context} from '@docker/actions-toolkit/lib/context';
 import {Docker} from '@docker/actions-toolkit/lib/docker/docker';
 import {Toolkit} from '@docker/actions-toolkit/lib/toolkit';
-
 import {Node} from '@docker/actions-toolkit/lib/types/buildx/builder';
 
 import * as context from '../src/context';
 
 const fixturesDir = path.join(__dirname, 'fixtures');
-const tmpDir = fs.mkdtempSync(path.join(process.env.TEMP || os.tmpdir(), 'context-'));
+// prettier-ignore
-const tmpName = path.join(tmpDir, '.tmpname-vi');
+const tmpDir = path.join(process.env.TEMP || '/tmp', 'setup-buildx-jest');
+const tmpName = path.join(tmpDir, '.tmpname-jest');
 
-vi.spyOn(Context, 'tmpDir').mockImplementation((): string => {
+jest.spyOn(Context, 'tmpDir').mockImplementation((): string => {
   if (!fs.existsSync(tmpDir)) {
     fs.mkdirSync(tmpDir, {recursive: true});
   }
   return tmpDir;
 });
 
-vi.spyOn(Context, 'tmpName').mockImplementation((): string => {
+jest.spyOn(Context, 'tmpName').mockImplementation((): string => {
   return tmpName;
 });
 
-vi.mock('crypto', async () => {
+jest.mock('crypto', () => {
   return {
-    ...(await vi.importActual('crypto')),
+    ...(jest.requireActual('crypto') as object),
-    randomUUID: vi.fn(() => '9b1deb4d-3b7d-4bad-9bdd-2b0d7b3dcb6d')
+    randomUUID: jest.fn(() => '9b1deb4d-3b7d-4bad-9bdd-2b0d7b3dcb6d')
   };
 });
 
-vi.spyOn(Docker, 'context').mockImplementation((): Promise<string> => {
+jest.spyOn(Docker, 'context').mockImplementation((): Promise<string> => {
   return Promise.resolve('default');
 });
 
@@ -300,13 +298,13 @@ describe('getCreateArgs', () => {
       ]
     ],
   ])(
-    '[%d] given buildx %o and %o as inputs, returns %o',
+    '[%d] given buildx %s and %p as inputs, returns %p',
     async (num: number, buildxVersion: string, inputs: Map<string, string>, expected: Array<string>) => {
       inputs.forEach((value: string, name: string) => {
         setInput(name, value);
       });
       const toolkit = new Toolkit();
-      vi.spyOn(Buildx.prototype, 'version').mockImplementation(async (): Promise<string> => {
+      jest.spyOn(Buildx.prototype, 'version').mockImplementation(async (): Promise<string> => {
         return buildxVersion;
       });
       const inp = await context.getInputs();
@@ -359,13 +357,13 @@ describe('getAppendArgs', () => {
       ]
     ]
   ])(
-    '[%d] given buildx %o and %o as inputs, returns %o',
+    '[%d] given buildx %s and %p as inputs, returns %p',
     async (num: number, buildxVersion: string, inputs: Map<string, string>, node: Node, expected: Array<string>) => {
       inputs.forEach((value: string, name: string) => {
         setInput(name, value);
       });
       const toolkit = new Toolkit();
-      vi.spyOn(Buildx.prototype, 'version').mockImplementation(async (): Promise<string> => {
+      jest.spyOn(Buildx.prototype, 'version').mockImplementation(async (): Promise<string> => {
         return buildxVersion;
       });
       const inp = await context.getInputs();
@@ -507,7 +505,7 @@ describe('getVersion', () => {
       'cloud:v0.11.2-desktop.2'
     ],
   ])(
-    '[%d] given %o as inputs, returns version %o',
+    '[%d] given %p as inputs, returns version %p',
     async (num: number, inputs: Map<string, string>, expected: string) => {
       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-buildx-action-'));
-
-process.env = Object.assign({}, process.env, {
-  TEMP: tmpDir,
-  GITHUB_REPOSITORY: 'docker/setup-buildx-action',
-  RUNNER_TEMP: path.join(tmpDir, 'runner-temp'),
-  RUNNER_TOOL_CACHE: path.join(tmpDir, 'runner-tool-cache')
-});

dev.Dockerfile

@@ -3,11 +3,10 @@
 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
+  --mount=type=cache,target=/src/node_modules \
-  set -e
+  yarn run build && mkdir /out && cp -Rf dist /out/
-  rsync -a /context/. .
-  rm -rf dist
-  yarn run build
-  mkdir /out
-  cp -r dist /out
-EOT
 
 FROM scratch AS build-update
 COPY --from=build /out /
 
 FROM build AS build-validate
-RUN --mount=target=/context \
+RUN --mount=type=bind,target=.,rw <<EOT
-  --mount=target=.,type=tmpfs <<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.js

@@ -0,0 +1,58 @@
+/* eslint-disable @typescript-eslint/no-require-imports */
+const {defineConfig, globalIgnores} = require('eslint/config');
+const {fixupConfigRules, fixupPluginRules} = require('@eslint/compat');
+const typescriptEslint = require('@typescript-eslint/eslint-plugin');
+const jestPlugin = require('eslint-plugin-jest');
+const prettier = require('eslint-plugin-prettier');
+const globals = require('globals');
+const tsParser = require('@typescript-eslint/parser');
+const js = require('@eslint/js');
+const {FlatCompat} = require('@eslint/eslintrc');
+
+// __dirname and __filename exist natively in CommonJS
+const compat = new FlatCompat({
+  baseDirectory: __dirname,
+  recommendedConfig: js.configs.recommended,
+  allConfig: js.configs.all
+});
+
+module.exports = defineConfig([
+  globalIgnores(['dist/**/*', 'coverage/**/*', 'node_modules/**/*']),
+  {
+    // prettier-ignore
+    extends: fixupConfigRules(
+      compat.extends(
+        'eslint:recommended',
+        'plugin:@typescript-eslint/eslint-recommended',
+        'plugin:@typescript-eslint/recommended',
+        'plugin:jest/recommended',
+        'plugin:prettier/recommended'
+      )
+    ),
+
+    plugins: {
+      '@typescript-eslint': fixupPluginRules(typescriptEslint),
+      jest: fixupPluginRules(jestPlugin),
+      prettier: fixupPluginRules(prettier)
+    },
+
+    languageOptions: {
+      globals: {
+        ...globals.node,
+        ...globals.jest
+      },
+      parser: tsParser,
+      ecmaVersion: 'latest',
+      sourceType: 'module'
+    },
+
+    rules: {
+      '@typescript-eslint/no-require-imports': [
+        'error',
+        {
+          allowAsImport: true
+        }
+      ]
+    }
+  }
+]);

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.js

@@ -0,0 +1,29 @@
+/* eslint-disable @typescript-eslint/no-require-imports */
+const fs = require('fs');
+const os = require('os');
+const path = require('path');
+
+const tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'docker-setup-buildx-action-'));
+
+process.env = Object.assign({}, process.env, {
+  TEMP: tmpDir,
+  GITHUB_REPOSITORY: 'docker/setup-buildx-action',
+  RUNNER_TEMP: path.join(tmpDir, 'runner-temp'),
+  RUNNER_TOOL_CACHE: path.join(tmpDir, 'runner-tool-cache')
+});
+
+module.exports = {
+  clearMocks: true,
+  testEnvironment: 'node',
+  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-buildx",
   "description": "Set up Docker Buildx",
-  "type": "module",
   "main": "src/main.ts",
   "scripts": {
     "build": "ncc build --source-map --minify --license licenses.txt",
-    "lint": "eslint --max-warnings=0 .",
+    "lint": "yarn run prettier && yarn run eslint",
-    "format": "eslint --fix .",
+    "format": "yarn run prettier:fix && yarn run eslint:fix",
-    "test": "vitest run"
+    "eslint": "eslint --max-warnings=0 .",
+    "eslint:fix": "eslint --fix .",
+    "prettier": "prettier --check \"./**/*.ts\"",
+    "prettier:fix": "prettier --write \"./**/*.ts\"",
+    "test": "jest"
   },
   "repository": {
     "type": "git",
@@ -22,25 +25,27 @@
   "license": "Apache-2.0",
   "packageManager": "yarn@4.9.2",
   "dependencies": {
-    "@actions/core": "^3.0.0",
+    "@actions/core": "^1.11.1",
     "@docker/actions-toolkit": "^0.63.0",
-    "js-yaml": "^4.1.1"
+    "js-yaml": "^4.1.0"
   },
   "devDependencies": {
-    "@eslint/js": "^9.39.3",
+    "@eslint/compat": "^2.0.0",
+    "@eslint/eslintrc": "^3.3.3",
+    "@eslint/js": "^9.39.2",
     "@types/js-yaml": "^4.0.9",
-    "@types/node": "^20.19.35",
+    "@types/node": "^20.19.27",
-    "@typescript-eslint/eslint-plugin": "^8.56.1",
+    "@typescript-eslint/eslint-plugin": "^8.50.0",
-    "@typescript-eslint/parser": "^8.56.1",
+    "@typescript-eslint/parser": "^8.50.0",
     "@vercel/ncc": "^0.38.4",
-    "@vitest/coverage-v8": "^4.0.18",
+    "eslint": "^9.39.2",
-    "@vitest/eslint-plugin": "^1.6.9",
-    "eslint": "^9.39.3",
     "eslint-config-prettier": "^10.1.8",
-    "eslint-plugin-prettier": "^5.5.5",
+    "eslint-plugin-jest": "^29.5.0",
-    "globals": "^17.3.0",
+    "eslint-plugin-prettier": "^5.5.4",
-    "prettier": "^3.8.1",
+    "jest": "^30.2.0",
-    "typescript": "^5.9.3",
+    "prettier": "^3.7.4",
-    "vitest": "^4.0.18"
+    "ts-jest": "^29.4.6",
+    "ts-node": "^10.9.2",
+    "typescript": "^5.9.3"
   }
 }

src/context.ts

@@ -1,11 +1,11 @@
 import * as crypto from 'crypto';
 import * as core from '@actions/core';
 
-import {Docker} from '@docker/actions-toolkit/lib/docker/docker.js';
+import {Docker} from '@docker/actions-toolkit/lib/docker/docker';
-import {Util} from '@docker/actions-toolkit/lib/util.js';
+import {Util} from '@docker/actions-toolkit/lib/util';
-import {Toolkit} from '@docker/actions-toolkit/lib/toolkit.js';
+import {Toolkit} from '@docker/actions-toolkit/lib/toolkit';
 
-import {Node} from '@docker/actions-toolkit/lib/types/buildx/builder.js';
+import {Node} from '@docker/actions-toolkit/lib/types/buildx/builder';
 
 export const builderNodeEnvPrefix = 'BUILDER_NODE';
 const defaultBuildkitdFlags = '--allow-insecure-entitlement security.insecure --allow-insecure-entitlement network.host';

src/main.ts

@@ -4,18 +4,18 @@ import * as yaml from 'js-yaml';
 import * as core from '@actions/core';
 import * as actionsToolkit from '@docker/actions-toolkit';
 
-import {Buildx} from '@docker/actions-toolkit/lib/buildx/buildx.js';
+import {Buildx} from '@docker/actions-toolkit/lib/buildx/buildx';
-import {Builder} from '@docker/actions-toolkit/lib/buildx/builder.js';
+import {Builder} from '@docker/actions-toolkit/lib/buildx/builder';
-import {Docker} from '@docker/actions-toolkit/lib/docker/docker.js';
+import {Docker} from '@docker/actions-toolkit/lib/docker/docker';
-import {Exec} from '@docker/actions-toolkit/lib/exec.js';
+import {Exec} from '@docker/actions-toolkit/lib/exec';
-import {Toolkit} from '@docker/actions-toolkit/lib/toolkit.js';
+import {Toolkit} from '@docker/actions-toolkit/lib/toolkit';
-import {Util} from '@docker/actions-toolkit/lib/util.js';
+import {Util} from '@docker/actions-toolkit/lib/util';
 
-import {Node} from '@docker/actions-toolkit/lib/types/buildx/builder.js';
+import {Node} from '@docker/actions-toolkit/lib/types/buildx/builder';
-import {ContextInfo} from '@docker/actions-toolkit/lib/types/docker/docker.js';
+import {ContextInfo} from '@docker/actions-toolkit/lib/types/docker/docker';
 
-import * as context from './context.js';
+import * as context from './context';
-import * as stateHelper from './state-helper.js';
+import * as stateHelper from './state-helper';
 
 actionsToolkit.run(
   // main

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": [
+  "exclude": [
-    "src/**/*.ts"
+    "./__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']
-    }
-  }
-});