refactor: convert project to typescript (#47)

* refactor: convert project to typescript

* fix: image as last argument of docker run

* ci: remove example as the build can act as example

* fix: set tokenEnv to RENOVATE_TOKEN

* fix: add trailing single quite to Docker --env arguments

* fix: mount volume with config file to Docker container

* chore: remove Prettier trailingComma on all

This puts it back at the default, which is es5 style.

* fix: correct package main to dist/indes.js

* fix: use @actions/exec to execute docker child process

* fix: use async/await for exec

Co-authored-by: Michael Kriese <michael.kriese@visualon.de>

* fix: use async/await in the runner

Co-authored-by: Michael Kriese <michael.kriese@visualon.de>

src/Dockerfile

@@ -1,5 +0,0 @@
-FROM renovate/renovate:19.228.2
-
-COPY entrypoint.sh /usr/entrypoint.sh
-
-ENTRYPOINT ["/usr/entrypoint.sh"]

src/docker.ts

@@ -0,0 +1,15 @@
+class Docker {
+  readonly repository = 'renovate/renovate';
+  // renovate: datasource=docker depName=renovate/renovate versioning=docker
+  readonly tag = '19.228.1';
+
+  image(): string {
+    return `${this.repository}:${this.tag}`;
+  }
+
+  version(): string {
+    return this.tag;
+  }
+}
+
+export default Docker;

src/entrypoint.sh

@@ -1,22 +0,0 @@
-#!/bin/bash
-#
-# Entrypoint for Docker.
-
-export RENOVATE_CONFIG_FILE="${GITHUB_WORKSPACE}/${1}"
-readonly _RENOVATE_TOKEN="${2}"
-
-# We are running as ubuntu, so no write access to /github/home
-export HOME=/home/ubuntu
-
-if [[ ! -f "${RENOVATE_CONFIG_FILE}" ]]; then
-  echo "ERROR: Couldn't find file ${RENOVATE_CONFIG_FILE}" 1>&2
-  exit 1
-fi
-
-# Run Renovate.
-#
-# Mimic the original ENTRYPOINT of the renovate/renovate Docker container. See
-# the following link for this entry.
-# https://github.com/renovatebot/docker-renovate/blob/d3aa0d99931ea7ad7e901a1e538eba0d61268229/Dockerfile#L63
-
-RENOVATE_TOKEN="${_RENOVATE_TOKEN}" /usr/local/bin/docker-entrypoint.sh

src/index.ts

@@ -0,0 +1,17 @@
+import * as core from '@actions/core';
+import Input from './input';
+import Renovate from './renovate';
+
+async function run(): Promise<void> {
+  try {
+    const input = new Input();
+    const renovate = new Renovate(input.configurationFile, input.token);
+
+    await renovate.runDockerContainer();
+  } catch (error) {
+    console.error(error);
+    core.setFailed(error.message);
+  }
+}
+
+run();

src/input.ts

@@ -0,0 +1,20 @@
+import * as core from '@actions/core';
+
+class Input {
+  readonly configurationFile = core.getInput('configurationFile', {
+    required: true,
+  });
+  readonly token = core.getInput('token', { required: true });
+
+  constructor() {
+    this.validate();
+  }
+
+  validate(): void {
+    if (this.token === '') {
+      throw new Error('input.token MUST NOT be empty');
+    }
+  }
+}
+
+export default Input;

src/renovate.ts

@@ -0,0 +1,55 @@
+import Docker from './docker';
+import { exec } from '@actions/exec';
+import fs from 'fs';
+import path from 'path';
+
+class Renovate {
+  private configFileEnv = 'RENOVATE_CONFIG_FILE';
+  private tokenEnv = 'RENOVATE_TOKEN';
+  private configFileMountDir = '/github-action';
+
+  private configFile: string;
+  private docker: Docker;
+
+  constructor(configFile: string, private token: string) {
+    this.configFile = path.resolve(configFile);
+
+    this.validateArguments();
+
+    this.docker = new Docker();
+  }
+
+  async runDockerContainer(): Promise<void> {
+    const commandArguments = [
+      '--rm',
+      `--env ${this.configFileEnv}=${this.configFileMountPath()}`,
+      `--env ${this.tokenEnv}=${this.token}`,
+      `--volume ${this.configFile}:${this.configFileMountPath()}`,
+      this.docker.image(),
+    ];
+    const command = `docker run ${commandArguments.join(' ')}`;
+
+    const code = await exec(command);
+    if (code !== 0) {
+      new Error(`'docker run' failed with exit code ${code}.`);
+    }
+  }
+
+  private validateArguments(): void {
+    if (!fs.existsSync(this.configFile)) {
+      throw new Error(
+        `Could not locate configuration file '${this.configFile}'.`
+      );
+    }
+  }
+
+  private configFileName(): string {
+    return path.basename(this.configFile);
+  }
+
+  private configFileMountPath(): string {
+    return path.join(this.configFileMountDir, this.configFileName());
+  }
+}
+
+export default Renovate;