Fix environment variable parsing for authentication

src/GitVersionExe.Tests/ArgumentParserTests.cs

@@ -14,6 +14,7 @@ namespace GitVersionExe.Tests
     [TestFixture]
     public class ArgumentParserTests : TestBase
     {
+        private IEnvironment environment;
         private IArgumentParser argumentParser;
 
         [SetUp]
@@ -24,6 +25,7 @@ public void SetUp()
                 services.AddSingleton<IArgumentParser, ArgumentParser>();
                 services.AddSingleton<IGlobbingResolver, GlobbingResolver>();
             });
+            environment = sp.GetService<IEnvironment>();
             argumentParser = sp.GetService<IArgumentParser>();
         }
 
@@ -604,5 +606,37 @@ public void CheckVerbosityParsing(string command, bool shouldThrow, Verbosity ex
                 arguments.Verbosity.ShouldBe(expectedVerbosity);
             }
         }
+
+        [Test]
+        public void EmptyArgumentsRemoteUsernameDefinedSetsUsername()
+        {
+            environment.SetEnvironmentVariable("GITVERSION_REMOTE_USERNAME", "value");
+            var arguments = argumentParser.ParseArguments(string.Empty);
+            arguments.Authentication.Username.ShouldBe("value");
+        }
+
+        [Test]
+        public void EmptyArgumentsRemotePasswordDefinedSetsPassword()
+        {
+            environment.SetEnvironmentVariable("GITVERSION_REMOTE_PASSWORD", "value");
+            var arguments = argumentParser.ParseArguments(string.Empty);
+            arguments.Authentication.Password.ShouldBe("value");
+        }
+
+        [Test]
+        public void ArbitraryArgumentsRemoteUsernameDefinedSetsUsername()
+        {
+            environment.SetEnvironmentVariable("GITVERSION_REMOTE_USERNAME", "value");
+            var arguments = argumentParser.ParseArguments("-nocache");
+            arguments.Authentication.Username.ShouldBe("value");
+        }
+
+        [Test]
+        public void ArbitraryArgumentsRemotePasswordDefinedSetsPassword()
+        {
+            environment.SetEnvironmentVariable("GITVERSION_REMOTE_PASSWORD", "value");
+            var arguments = argumentParser.ParseArguments("-nocache");
+            arguments.Authentication.Password.ShouldBe("value");
+        }
     }
 }

src/GitVersionExe/ArgumentParser.cs

@@ -46,6 +46,9 @@ public Arguments ParseArguments(string[] commandLineArguments)
                 };
 
                 args.Output.Add(OutputType.Json);
+
+                AddAuthentication(args);
+
                 return args;
             }
 
@@ -133,7 +136,7 @@ private void AddAuthentication(Arguments arguments)
             var password = environment.GetEnvironmentVariable("GITVERSION_REMOTE_PASSWORD");
             if (!string.IsNullOrWhiteSpace(password))
             {
-                arguments.Authentication.Username = password;
+                arguments.Authentication.Password = password;
             }
         }