From 6296df7c0ccd0909d1150aa76e70d8cc3fa88d50 Mon Sep 17 00:00:00 2001
From: Nikolay Edigaryev <edigaryev@gmail.com>
Date: Tue, 30 Aug 2022 00:38:51 +0400
Subject: [PATCH] Credential helpers: "credHelpers" map is optional in Docker's
 config (#209)

---
 .../tart/Credentials/HelperProgramCredentialsProvider.swift | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/Sources/tart/Credentials/HelperProgramCredentialsProvider.swift b/Sources/tart/Credentials/HelperProgramCredentialsProvider.swift
index 05feade9..1a58b461 100644
--- a/Sources/tart/Credentials/HelperProgramCredentialsProvider.swift
+++ b/Sources/tart/Credentials/HelperProgramCredentialsProvider.swift
@@ -7,8 +7,8 @@ class HelperProgramCredentialsProvider: CredentialsProvider {
       return nil
     }
     let config = try JSONDecoder().decode(DockerConfig.self, from: Data(contentsOf: dockerConfigURL))
-    
-    if let helperProgram = config.credHelpers[host] {
+
+    if let helperProgram = config.credHelpers?[host] {
       return try executeHelper(binaryName: "docker-credential-\(helperProgram)", host: host)
     }
 
@@ -54,7 +54,7 @@ class HelperProgramCredentialsProvider: CredentialsProvider {
 }
 
 struct DockerConfig: Codable {
-  var credHelpers: Dictionary<String, String> = Dictionary()
+  var credHelpers: Dictionary<String, String>? = Dictionary()
 }
 
 struct DockerGetOutput: Codable {