ci: Add workaround for Docker always printing logs as errors

.build/Build.Docker.cs

@@ -1,29 +1,51 @@
 using Nuke.Common;
+using Nuke.Common.Tooling;
 using Nuke.Common.Tools.Docker;
 
+using Serilog;
+
 using static Nuke.Common.Tools.Docker.DockerTasks;
 
 partial class Build : NukeBuild
 {
-    private string DockerTag => $"ghcr.io/maxnatamo/fetcharr:{GitVersion.SemVer}";
+    private string DockerImage => $"ghcr.io/maxnatamo/fetcharr";
+
+    private string DockerTag => GitVersion.SemVer;
+
+    private string DockerImageTag => $"{DockerImage}:{DockerTag}";
 
     Target BuildImage => _ => _
         .DependsOn(Test)
         .DependsOn(Format)
         .Executes(() =>
-            DockerBuild(x => x
+            DockerBuildxBuild(x => x
                 .SetPath(".")
                 .SetFile("Dockerfile")
-                .SetTag(this.DockerTag)
+                .SetTag(this.DockerImageTag)
+                .AddCacheFrom("type=gha")
+                .AddCacheTo("type=gha,mode=max")
                 .AddLabel("org.opencontainers.image.source=https://github.com/maxnatamo/fetcharr")
                 .AddLabel("org.opencontainers.image.url=https://github.com/maxnatamo/fetcharr")
                 .AddLabel("org.opencontainers.image.description=Automatically sync Plex watchlist to your Sonarr and Radarr instances.")
-                .AddLabel("org.opencontainers.image.licenses=MIT")));
+                .AddLabel("org.opencontainers.image.licenses=MIT")
+                .SetProcessLogger((outputType, output) =>
+                {
+                    // Workaround for all Docker messages being logged as errors.
+                    // Source: https://github.com/nuke-build/nuke/issues/1201
+                    if (outputType == OutputType.Std)
+                    {
+                        Log.Error(output);
+                    }
+                    else
+                    {
+                        Log.Information(output);
+                    }
+                })));
 
     Target PushImage => _ => _
         .DependsOn(BuildImage)
         .Requires(() => this.GithubToken)
         .Executes(() =>
             DockerImagePush(x => x
-                .SetName(this.DockerTag)));
+                .SetName(this.DockerImageTag)));
 }