[pull] develop from cake-build:develop

src/Cake.Common.Tests/Unit/Build/AzurePipelines/AzurePipelinesCommandTests.cs

@@ -155,6 +155,20 @@ public void Should_End_Group()
                 Assert.Contains(fixture.Writer.Entries, m => m == $"##[endgroup]");
             }
 
+            [Fact]
+            public void Should_Command_With_CommandLine()
+            {
+                // Given
+                var fixture = new AzurePipelinesFixture();
+                var service = fixture.CreateAzurePipelinesService();
+
+                // When
+                service.Commands.Command("Example Command");
+
+                // Then
+                Assert.Contains(fixture.Writer.Entries, m => m == $"##[command]Example Command");
+            }
+
             [Fact]
             public void Should_Section_With_Name()
             {

src/Cake.Common/Build/AzurePipelines/AzurePipelinesCommands.cs

@@ -81,6 +81,12 @@ public void EndGroup()
             WriteFormatCommand("endgroup", string.Empty);
         }
 
+        /// <inheritdoc/>
+        public void Command(string commandLine)
+        {
+            WriteFormatCommand("command", commandLine);
+        }
+
         /// <inheritdoc/>
         public void Section(string name)
         {

src/Cake.Common/Build/AzurePipelines/IAzurePipelinesCommands.cs

@@ -50,6 +50,12 @@ public interface IAzurePipelinesCommands
         /// </summary>
         public void EndGroup();
 
+        /// <summary>
+        /// Log command.
+        /// </summary>
+        /// <param name="commandLine">The command-line being run.</param>
+        public void Command(string commandLine);
+
         /// <summary>
         /// Log section.
         /// </summary>