Create an Update Argo App Images step in Calamari

source/Calamari.Shared/Deployment/SpecialVariables.cs

@@ -105,6 +105,24 @@ public static string PackageFilePath(string key)
             {
                 return $"Octopus.Action.Package[{key}].PackageFilePath";
             }
+
+            public static readonly string PackageCollection = "Octopus.Action.Package";
+
+            public static string Prefix(string name) => $"Octopus.Action.Package[{name}]";
+
+            public static string PackageId(string name) => $"Octopus.Action.Package[{name}].PackageId";
+
+            public static string FeedId(string name) => $"Octopus.Action.Package[{name}].FeedId";
+
+            public static string PackageVersion(string name) => $"Octopus.Action.Package[{name}].PackageVersion";
+
+            public static string ShouldDownloadOnTentacle(string name) => $"Octopus.Action.Package[{name}].DownloadOnTentacle";
+
+            public static string OriginalPath(string name) => $"Octopus.Action.Package[{name}].OriginalPath";
+
+            public static string Image(string name) => $"Octopus.Action.Package[{name}].Image";
+
+            public static string Purpose(string name) => $"Octopus.Action.Package[{name}].Purpose";
         }
 
         public static class Vhd

source/Calamari.Tests/ArgoCD/Commands/Conventions/UpdateArgoCdAppImages/CommitMessageGeneratorTests.cs

@@ -0,0 +1,75 @@
+using System;
+using System.Collections.Generic;
+using Calamari.ArgoCD.Conventions.UpdateArgoCDAppImages;
+using Calamari.Tests.Helpers;
+using FluentAssertions;
+using NUnit.Framework;
+
+namespace Calamari.Tests.ArgoCD.Commands.Conventions.UpdateArgoCdAppImages
+{
+    [TestFixture]
+    public class CommitMessageGeneratorTests
+    {
+        readonly CommitMessageGenerator commitMessageGenerator = new CommitMessageGenerator();
+
+        [Test]
+        public void SummaryWithNoImages_SummaryAndNoImage()
+        {
+            var result = commitMessageGenerator.GenerateForImageUpdates(new GitCommitSummary("Foo"), null, new HashSet<string>());
+
+            var expected = @"Foo
+
+---
+No images updated".ReplaceLineEndings("\n");
+            result.Should().Be(expected);
+        }
+
+        [Test]
+        public void SummaryWithOneImage_SummaryAndImage()
+        {
+            var result = commitMessageGenerator.GenerateForImageUpdates(new GitCommitSummary("Foo"), null, new HashSet<string>() { "nginx" });
+
+            var expected = @"Foo
+
+---
+Images updated:
+- nginx".ReplaceLineEndings("\n");
+            result.Should().Be(expected);
+        }
+
+        [Test]
+        public void SummaryWithThreeImages_SummaryAndImagesSorted()
+        {
+            var result = commitMessageGenerator.GenerateForImageUpdates(new GitCommitSummary("Foo"), null, new HashSet<string>() {"nginx", "alpine", "ubuntu"});
+
+            var expected = @"Foo
+
+---
+Images updated:
+- alpine
+- nginx
+- ubuntu".ReplaceLineEndings("\n");
+            result.Should().Be(expected);
+        }
+
+        [Test]
+        public void SummaryAndDescriptionWithOneImage_SummaryAndDescriptionAndImage()
+        {
+            var description = @"Dolores animi quia quae enim hic.
+
+Quibusdam qui maxime eos et magnam quod minus rerum perferendis eum iusto neque et tenetur. Porro illum praesentium sit dolorem rerum accusantium enim repellendus qui iste.".ReplaceLineEndings("\n");
+            var result = commitMessageGenerator.GenerateForImageUpdates(new GitCommitSummary("Foo"), description, new HashSet<string>() {"nginx"});
+
+            var expected = @"Foo
+
+Dolores animi quia quae enim hic.
+
+Quibusdam qui maxime eos et magnam quod minus rerum perferendis eum iusto neque et tenetur. Porro illum praesentium sit dolorem rerum accusantium enim repellendus qui iste.
+
+---
+Images updated:
+- nginx".ReplaceLineEndings("\n");
+            result.Should().Be(expected);
+        }
+    }
+}