Add action logic

src/index.js

@@ -0,0 +1,21 @@
+import { Action, Docker, Input, ImageTag } from './model';
+
+const core = require('@actions/core');
+
+async function action() {
+  Action.checkCompatibility();
+
+  const { dockerfile, workspace, actionFolder } = Action;
+  const { unityVersion } = Input.getFromUser();
+  const baseImage = ImageTag.createForBase(unityVersion);
+
+  // Build docker image
+  const actionImage = await Docker.build({ path: actionFolder, dockerfile, baseImage });
+
+  // Run docker image
+  await Docker.run(actionImage, { workspace, unityVersion });
+}
+
+action().catch(error => {
+  core.setFailed(error.message);
+});

src/model/action.js

@@ -0,0 +1,48 @@
+import path from 'path';
+
+class Action {
+  static get supportedPlatforms() {
+    return ['linux'];
+  }
+
+  static get isRunningLocally() {
+    return process.env.RUNNER_WORKSPACE === undefined;
+  }
+
+  static get isRunningFromSource() {
+    return path.basename(__dirname) === 'model';
+  }
+
+  static get name() {
+    return 'unity-activate';
+  }
+
+  static get rootFolder() {
+    if (Action.isRunningFromSource) {
+      return path.dirname(path.dirname(path.dirname(__filename)));
+    }
+
+    return path.dirname(path.dirname(__filename));
+  }
+
+  static get actionFolder() {
+    return `${Action.rootFolder}/action`;
+  }
+
+  static get dockerfile() {
+    return `${Action.actionFolder}/Dockerfile`;
+  }
+
+  static get workspace() {
+    return process.env.GITHUB_WORKSPACE;
+  }
+
+  static checkCompatibility() {
+    const currentPlatform = process.platform;
+    if (!Action.supportedPlatforms.includes(currentPlatform)) {
+      throw new Error(`Currently ${currentPlatform}-platform is not supported`);
+    }
+  }
+}
+
+export default Action;

src/model/action.test.js

@@ -0,0 +1,36 @@
+import path from 'path';
+import fs from 'fs';
+import Action from './action';
+
+describe('Action', () => {
+  describe('compatibility check', () => {
+    it('throws for anything other than linux', () => {
+      if (process.platform !== 'linux') {
+        expect(() => Action.checkCompatibility()).toThrow();
+      } else {
+        expect(() => Action.checkCompatibility()).not.toThrow();
+      }
+    });
+  });
+
+  it('returns the root folder of the action', () => {
+    const { rootFolder, name } = Action;
+
+    expect(path.basename(rootFolder)).toStrictEqual(name);
+    expect(fs.existsSync(rootFolder)).toStrictEqual(true);
+  });
+
+  it('returns the action folder', () => {
+    const { actionFolder } = Action;
+
+    expect(path.basename(actionFolder)).toStrictEqual('action');
+    expect(fs.existsSync(actionFolder)).toStrictEqual(true);
+  });
+
+  it('returns the docker file', () => {
+    const { dockerfile } = Action;
+
+    expect(path.basename(dockerfile)).toStrictEqual('Dockerfile');
+    expect(fs.existsSync(dockerfile)).toStrictEqual(true);
+  });
+});

src/model/docker.js

@@ -0,0 +1,53 @@
+import { exec } from '@actions/exec';
+import ImageTag from './image-tag';
+
+class Docker {
+  static async build(buildParameters, silent = false) {
+    const { path, dockerfile, baseImage } = buildParameters;
+    const { version } = baseImage;
+
+    const tag = ImageTag.createForAction(version);
+    const command = `docker build ${path} \
+      --file ${dockerfile} \
+      --build-arg IMAGE=${baseImage} \
+      --tag ${tag}`;
+
+    await exec(command, null, { silent });
+
+    return tag;
+  }
+
+  static async run(image, parameters, silent = false) {
+    const { unityVersion, workspace } = parameters;
+
+    const command = `docker run \
+        --workdir /github/workspace \
+        --rm \
+        --env UNITY_VERSION=${unityVersion} \
+        --env HOME=/github/home \
+        --env GITHUB_REF \
+        --env GITHUB_SHA \
+        --env GITHUB_REPOSITORY \
+        --env GITHUB_ACTOR \
+        --env GITHUB_WORKFLOW \
+        --env GITHUB_HEAD_REF \
+        --env GITHUB_BASE_REF \
+        --env GITHUB_EVENT_NAME \
+        --env GITHUB_WORKSPACE=/github/workspace \
+        --env GITHUB_ACTION \
+        --env GITHUB_EVENT_PATH \
+        --env RUNNER_OS \
+        --env RUNNER_TOOL_CACHE \
+        --env RUNNER_TEMP \
+        --env RUNNER_WORKSPACE \
+        --volume "/var/run/docker.sock":"/var/run/docker.sock" \
+        --volume "/home/runner/work/_temp/_github_home":"/github/home" \
+        --volume "/home/runner/work/_temp/_github_workflow":"/github/workflow" \
+        --volume "${workspace}":"/github/workspace" \
+        ${image}`;
+
+    await exec(command, null, { silent });
+  }
+}
+
+export default Docker;

src/model/docker.test.js

@@ -0,0 +1,20 @@
+import Action from './action';
+import Docker from './docker';
+import ImageTag from './image-tag';
+
+describe('Docker', () => {
+  it('builds', async () => {
+    const path = Action.actionFolder;
+    const dockerfile = `${path}/Dockerfile`;
+    const baseImage = new ImageTag({
+      repository: '',
+      name: 'alpine',
+      version: '3',
+    });
+
+    const tag = await Docker.build({ path, dockerfile, baseImage }, true);
+
+    expect(tag).toBeInstanceOf(ImageTag);
+    expect(tag.toString()).toStrictEqual('unity-action:3');
+  }, 240000);
+});

src/model/image-tag.js

@@ -0,0 +1,41 @@
+import { trimStart } from 'lodash-es';
+
+class ImageTag {
+  static createForBase(version) {
+    const repository = 'gableroux';
+    const name = 'unity3d';
+    return new this({ repository, name, version });
+  }
+
+  static createForAction(version) {
+    const repository = '';
+    const name = 'unity-action';
+    return new this({ repository, name, version });
+  }
+
+  constructor({ repository = '', name, version }) {
+    if (!ImageTag.versionPattern.test(version)) {
+      throw new Error(`Invalid version "${version}".`);
+    }
+
+    Object.assign(this, { repository, name, version });
+  }
+
+  static get versionPattern() {
+    return /^20\d{2}\.\d\.\w{3,4}|3$/;
+  }
+
+  get tag() {
+    return this.version;
+  }
+
+  get image() {
+    return trimStart(`${this.repository}/${this.name}`, '/');
+  }
+
+  toString() {
+    return `${this.image}:${this.tag}`;
+  }
+}
+
+export default ImageTag;

src/model/image-tag.test.js

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+import ImageTag from './image-tag';
+
+describe('UnityImageVersion', () => {
+  describe('constructor', () => {
+    const some = {
+      name: 'someName',
+      version: '2020.0.00f0',
+    };
+
+    it('can be called', () => {
+      expect(() => new ImageTag(some)).not.toThrow();
+    });
+
+    it('accepts parameters and sets the right properties', () => {
+      const image = new ImageTag(some);
+
+      expect(image.repository).toStrictEqual('');
+      expect(image.name).toStrictEqual(some.name);
+      expect(image.version).toStrictEqual(some.version);
+    });
+
+    test.each(['2000.0.0f0', '2011.1.11f1'])('accepts %p version format', version => {
+      expect(() => new ImageTag({ version })).not.toThrow();
+    });
+
+    test.each(['some version', '', 1, null])('throws for incorrect versions %p', version => {
+      expect(() => new ImageTag({ version })).toThrow();
+    });
+  });
+
+  describe('toString', () => {
+    it('returns the correct version', () => {
+      const image = ImageTag.createForBase('2099.1.1111');
+
+      expect(image.toString()).toStrictEqual(`gableroux/unity3d:2099.1.1111`);
+    });
+  });
+});

src/model/index.js

@@ -0,0 +1,6 @@
+import Action from './action';
+import Docker from './docker';
+import Input from './input';
+import ImageTag from './image-tag';
+
+export { Action, Docker, Input, ImageTag };

src/model/index.test.js

@@ -0,0 +1,7 @@
+import * as Index from '.';
+
+describe('Index', () => {
+  test.each(['Action', 'Docker', 'ImageTag', 'Input'])('exports %s', exportedModule => {
+    expect(typeof Index[exportedModule]).toStrictEqual('function');
+  });
+});

src/model/input.js

@@ -0,0 +1,15 @@
+const core = require('@actions/core');
+
+class Input {
+  static getFromUser() {
+    // Input variables specified in workflow using "with" prop.
+    const unityVersion = core.getInput('unityVersion') || '2019.2.11f1';
+
+    // Return sanitised input
+    return {
+      unityVersion,
+    };
+  }
+}
+
+export default Input;

src/model/input.test.js

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+import Input from './input';
+
+describe('Input', () => {
+  describe('getFromUser', () => {
+    it('does not throw', () => {
+      expect(() => Input.getFromUser()).not.toThrow();
+    });
+
+    it('returns an object', () => {
+      expect(typeof Input.getFromUser()).toStrictEqual('object');
+    });
+  });
+});