From 5e365b5a488036bc04f4812ea53448bff5d71eee Mon Sep 17 00:00:00 2001
From: CrazyMax <crazy-max@users.noreply.github.com>
Date: Fri, 10 Feb 2023 11:31:34 +0100
Subject: [PATCH] buildx: configDir

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>
---
 __tests__/buildx/buildx.test.ts | 22 ++++++++++++++++++++++
 src/buildx/buildx.ts            |  5 +++++
 2 files changed, 27 insertions(+)

diff --git a/__tests__/buildx/buildx.test.ts b/__tests__/buildx/buildx.test.ts
index c3abad0..835b44b 100644
--- a/__tests__/buildx/buildx.test.ts
+++ b/__tests__/buildx/buildx.test.ts
@@ -46,6 +46,28 @@ afterEach(() => {
   rimraf.sync(tmpDir);
 });
 
+describe('configDir', () => {
+  const originalEnv = process.env;
+  beforeEach(() => {
+    jest.resetModules();
+    process.env = {
+      ...originalEnv,
+      BUILDX_CONFIG: '/var/docker/buildx',
+      DOCKER_CONFIG: '/var/docker/config'
+    };
+  });
+  afterEach(() => {
+    process.env = originalEnv;
+  });
+  it('returns default', async () => {
+    process.env.BUILDX_CONFIG = '';
+    expect(Buildx.configDir).toEqual(path.join('/var/docker/config', 'buildx'));
+  });
+  it('returns from env', async () => {
+    expect(Buildx.configDir).toEqual('/var/docker/buildx');
+  });
+});
+
 describe('isAvailable', () => {
   it('docker cli', async () => {
     const execSpy = jest.spyOn(exec, 'getExecOutput');
diff --git a/src/buildx/buildx.ts b/src/buildx/buildx.ts
index a46cdf4..30b47c0 100644
--- a/src/buildx/buildx.ts
+++ b/src/buildx/buildx.ts
@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+import path from 'path';
 import * as exec from '@actions/exec';
 import * as semver from 'semver';
 
@@ -42,6 +43,10 @@ export class Buildx {
     this.standalone = opts?.standalone ?? !Docker.isAvailable;
   }
 
+  static get configDir(): string {
+    return process.env.BUILDX_CONFIG || path.join(Docker.configDir, 'buildx');
+  }
+
   public getCommand(args: Array<string>) {
     return {
       command: this.standalone ? 'buildx' : 'docker',