Fix file ownership issues for self-hosted runners. (#141)

src/model/build-parameters.js

@@ -1,3 +1,4 @@
+import os from 'os';
 import AndroidVersioning from './android-versioning';
 import Input from './input';
 import Platform from './platform';
@@ -20,8 +21,12 @@ class BuildParameters {
       Input.androidVersionCode,
     );
 
+    const { uid, gid } = os.userInfo();
+
     return {
       version: Input.unityVersion,
+      uid,
+      gid,
       runnerTempPath: process.env.RUNNER_TEMP,
       platform: Input.targetPlatform,
       projectPath: Input.projectPath,

src/model/docker.js

@@ -1,15 +1,18 @@
+import fs from 'fs';
 import { exec } from '@actions/exec';
 import ImageTag from './image-tag';
 
 class Docker {
   static async build(buildParameters, silent = false) {
-    const { path, dockerfile, baseImage } = buildParameters;
+    const { path, dockerfile, baseImage, uid, gid } = buildParameters;
     const { version, platform } = baseImage;
 
     const tag = new ImageTag({ repository: '', name: 'unity-builder', version, platform });
     const command = `docker build ${path} \
       --file ${dockerfile} \
       --build-arg IMAGE=${baseImage} \
+      --build-arg UID=${uid} \
+      --build-arg GID=${gid} \
       --tag ${tag}`;
 
     await exec(command, undefined, { silent });
@@ -83,6 +86,9 @@ class Docker {
         --volume "${workspace}":"/github/workspace" \
         ${image}`;
 
+    fs.mkdirSync(`${runnerTempPath}/_github_home`, { recursive: true });
+    fs.mkdirSync(`${runnerTempPath}/_github_workflow`, { recursive: true });
+
     await exec(command, undefined, { silent });
   }
 }