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

package-lock.json

@@ -9,6 +9,19 @@
       "resolved": "https://registry.npmjs.org/@actions/core/-/core-1.2.4.tgz",
       "integrity": "sha512-YJCEq8BE3CdN8+7HPZ/4DxJjk/OkZV2FFIf+DlZTC/4iBlzYCD5yjRR6eiOS5llO11zbRltIRuKAjMKaWTE6cg=="
     },
+    "@actions/exec": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/@actions/exec/-/exec-1.0.4.tgz",
+      "integrity": "sha512-4DPChWow9yc9W3WqEbUj8Nr86xkpyE29ZzWjXucHItclLbEW6jr80Zx4nqv18QL6KK65+cifiQZXvnqgTV6oHw==",
+      "requires": {
+        "@actions/io": "^1.0.1"
+      }
+    },
+    "@actions/io": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/@actions/io/-/io-1.0.2.tgz",
+      "integrity": "sha512-J8KuFqVPr3p6U8W93DOXlXW6zFvrQAJANdS+vw0YhusLIq+bszW8zmK2Fh1C2kDPX8FMvwIl1OUcFgvJoXLbAg=="
+    },
     "@babel/code-frame": {
       "version": "7.8.3",
       "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.8.3.tgz",

package.json

@@ -31,7 +31,8 @@
   },
   "homepage": "https://github.com/renovatebot/github-action#readme",
   "dependencies": {
-    "@actions/core": "1.2.4"
+    "@actions/core": "1.2.4",
+    "@actions/exec": "1.0.4"
   },
   "devDependencies": {
     "@commitlint/cli": "8.3.5",

src/index.ts

@@ -2,11 +2,14 @@ import * as core from '@actions/core';
 import Input from './input';
 import Renovate from './renovate';
 
-try {
+function run(): Promise<void> {
   const input = new Input();
   const renovate = new Renovate(input.configurationFile, input.token);
-  renovate.runDockerContainer();
-} catch (error) {
-  console.log(error);
-  core.setFailed(error.message);
+
+  return renovate.runDockerContainer();
 }
+
+run().catch((error) => {
+  console.error(error);
+  core.setFailed(error.message);
+});

src/renovate.ts

@@ -1,5 +1,5 @@
 import Docker from './docker';
-import child from 'child_process';
+import { exec } from '@actions/exec';
 import fs from 'fs';
 import path from 'path';
 
@@ -19,24 +19,35 @@ class Renovate {
     this.docker = new Docker();
   }
 
-  runDockerContainer(): 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(' ')}`;
-    // console.log(commandArguments, command);
+  runDockerContainer(): Promise<void> {
+    return new Promise((resolve, reject) => {
+      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(' ')}`;
 
-    child.execSync(command, { stdio: 'inherit' });
+      exec(command)
+        .then((code) => {
+          if (code === 0) {
+            resolve();
+          } else {
+            reject(new Error(`'docker run' failed with exit code ${code}.`));
+          }
+        })
+        .catch((error) => {
+          reject(error);
+        });
+    });
   }
 
   private validateArguments(): void {
     if (!fs.existsSync(this.configFile)) {
       throw new Error(
-        `Could not locate configuration file '${this.configFile}'.`,
+        `Could not locate configuration file '${this.configFile}'.`
       );
     }
   }