Add setup-qemu action (#71)

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

.github/workflows/setup-qemu-ci.yml

@@ -0,0 +1,36 @@
+name: setup-qemu-ci
+
+on:
+  push:
+    paths:
+      - .github/workflows/setup-qemu-ci.yml
+      - setup-qemu/**
+  pull_request:
+    paths:
+      - .github/workflows/setup-qemu-ci.yml
+      - setup-qemu/**
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        qemu-version:
+          - latest
+          - 4.2.0-7
+    steps:
+      -
+        name: Runner info
+        run: |
+          sudo apt-get install -y hwinfo
+          sudo hwinfo --short
+          sudo mount
+      -
+        name: Checkout
+        uses: actions/checkout@v2.3.1
+      -
+        name: Set up QEMU
+        uses: ./setup-qemu/
+        with:
+          qemu-version: ${{ matrix.qemu-version }}

.github/workflows/setup-qemu-precheckin.yml

@@ -0,0 +1,32 @@
+name: setup-qemu-precheckin
+
+on:
+  push:
+    paths:
+      - .github/workflows/setup-qemu-precheckin.yml
+      - setup-qemu/**
+  pull_request:
+    paths:
+      - .github/workflows/setup-qemu-precheckin.yml
+      - setup-qemu/**
+
+jobs:
+  pre-checkin:
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v2.3.1
+      -
+        name: Install
+        run: yarn --cwd ./setup-qemu/ install
+      -
+        name: Pre-checkin
+        run: yarn --cwd ./setup-qemu/ run pre-checkin
+      -
+        name: Check for uncommitted changes
+        run: |
+          if [[ `git status --porcelain` ]]; then
+            git status --porcelain
+            echo "::warning::Found changes. Please run 'yarn --cwd ./setup-qemu/ run pre-checkin' and push"
+          fi

setup-qemu/.editorconfig

@@ -0,0 +1,15 @@
+# This file is for unifying the coding style for different editors and IDEs.
+# More information at http://editorconfig.org
+
+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.md]
+trim_trailing_whitespace = false

setup-qemu/.gitattributes

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+/dist/** linguist-generated=true
+/lib/** linguist-generated=true

setup-qemu/.gitignore

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+node_modules
+lib
+
+# Jetbrains
+/.idea
+/*.iml
+
+# Rest of the file pulled from https://github.com/github/gitignore/blob/master/Node.gitignore
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+*.lcov
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+jspm_packages/
+
+# TypeScript v1 declaration files
+typings/
+
+# TypeScript cache
+*.tsbuildinfo
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+.env.test
+
+# parcel-bundler cache (https://parceljs.org/)
+.cache
+
+# next.js build output
+.next
+
+# nuxt.js build output
+.nuxt
+
+# vuepress build output
+.vuepress/dist
+
+# Serverless directories
+.serverless/
+
+# FuseBox cache
+.fusebox/
+
+# DynamoDB Local files
+.dynamodb/

setup-qemu/.prettierrc.json

@@ -0,0 +1,11 @@
+{
+  "printWidth": 120,
+  "tabWidth": 2,
+  "useTabs": false,
+  "semi": true,
+  "singleQuote": true,
+  "trailingComma": "none",
+  "bracketSpacing": false,
+  "arrowParens": "avoid",
+  "parser": "typescript"
+}

setup-qemu/README.md

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+## About
+
+GitHub Action to install [QEMU static binaries](https://github.com/multiarch/qemu-user-static).
+
+___
+
+* [Usage](#usage)
+  * [Quick start](#quick-start)
+* [Customizing](#customizing)
+  * [inputs](#inputs)
+* [Limitation](#limitation)
+
+## Usage
+
+```yaml
+name: ci
+
+on:
+  pull_request:
+    branches: master
+  push:
+    branches: master
+    tags:
+
+jobs:
+  qemu:
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v2
+      -
+        name: Set up QEMU
+        uses: docker/action/setup-qemu@v2
+        with:
+          qemu-version: latest
+```
+
+## Customizing
+
+### inputs
+
+Following inputs can be used as `step.with` keys
+
+| Name             | Type    | Default   | Description                        |
+|------------------|---------|-----------|------------------------------------|
+| `qemu-version`   | String  | `latest`  | [qemu-user-static](https://github.com/multiarch/qemu-user-static) version (Docker tag). Example: `4.2.0-7` |
+
+## Limitation
+
+This action is only available for Linux [virtual environments](https://help.github.com/en/articles/virtual-environments-for-github-actions#supported-virtual-environments-and-hardware-resources).

setup-qemu/action.yml

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+# https://help.github.com/en/articles/metadata-syntax-for-github-actions
+name: 'Docker - Setup QEMU'
+description: 'GitHub Action to install QEMU static binaries'
+author: 'crazy-max'
+branding:
+  color: 'blue'
+  icon: 'truck'
+
+inputs:
+  qemu-version:
+    description: 'QEMU static binaries Docker image version. Example: 4.2.0-7'
+    default: 'latest'
+    required: false
+
+runs:
+  using: 'node12'
+  main: 'dist/index.js'

setup-qemu/jest.config.js

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+module.exports = {
+  clearMocks: true,
+  moduleFileExtensions: ['js', 'ts'],
+  setupFiles: ["dotenv/config"],
+  testEnvironment: 'node',
+  testMatch: ['**/*.test.ts'],
+  testRunner: 'jest-circus/runner',
+  transform: {
+    '^.+\\.ts$': 'ts-jest'
+  },
+  verbose: false
+}

setup-qemu/package.json

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+{
+  "name": "docker-setup-qemu",
+  "description": "GitHub Action to install QEMU static binaries",
+  "main": "lib/main.js",
+  "scripts": {
+    "build": "tsc && ncc build",
+    "format": "prettier --write **/*.ts",
+    "format-check": "prettier --check **/*.ts",
+    "test": "jest --coverage",
+    "pre-checkin": "yarn run format && yarn run build"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/docker/action.git",
+    "directory": "setup-qemu"
+  },
+  "keywords": [
+    "actions",
+    "docker",
+    "qemu"
+  ],
+  "author": "CrazyMax",
+  "license": "Apache-2.0",
+  "dependencies": {
+    "@actions/core": "^1.2.4",
+    "@actions/exec": "^1.0.4"
+  },
+  "devDependencies": {
+    "@types/jest": "^26.0.3",
+    "@types/node": "^14.0.14",
+    "@zeit/ncc": "^0.22.3",
+    "dotenv": "^8.2.0",
+    "jest": "^26.1.0",
+    "jest-circus": "^26.1.0",
+    "jest-runtime": "^26.1.0",
+    "prettier": "^2.0.5",
+    "ts-jest": "^26.1.1",
+    "typescript": "^3.9.5",
+    "typescript-formatter": "^7.2.2"
+  }
+}

setup-qemu/src/main.ts

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+import * as os from 'os';
+import * as core from '@actions/core';
+import * as exec from '@actions/exec';
+
+async function run(): Promise<void> {
+  try {
+    if (os.platform() !== 'linux') {
+      core.setFailed('Only supported on linux platform');
+      return;
+    }
+
+    const qemuVer: string = core.getInput('qemu-version') || 'latest';
+
+    core.info(`💎 Installing QEMU static binaries...`);
+    await exec.exec('docker', [
+      'run',
+      '--rm',
+      '--privileged',
+      `multiarch/qemu-user-static:${qemuVer}`,
+      '--reset',
+      '-p',
+      'yes',
+      '--credential',
+      'yes'
+    ]);
+  } catch (error) {
+    core.setFailed(error.message);
+  }
+}
+
+run();

setup-qemu/tsconfig.json

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+{
+  "compilerOptions": {
+    "target": "es6",
+    "module": "commonjs",
+    "lib": [
+      "es6",
+      "dom"
+    ],
+    "newLine": "lf",
+    "outDir": "./lib",
+    "rootDir": "./src",
+    "strict": true,
+    "noImplicitAny": false,
+    "esModuleInterop": true,
+    "sourceMap": true
+  },
+  "exclude": ["node_modules", "**/*.test.ts"]
+}