Implement ordered pipeline step resolution

internal/core/config/config.go

@@ -107,7 +107,26 @@ func clonePipelineProfile(in pipeline.PipelineProfile) pipeline.PipelineProfile
 	out.Input = cloneModuleBinding(in.Input)
 	out.Chunk = cloneModuleBinding(in.Chunk)
 	out.Output = cloneModuleBinding(in.Output)
-	out.References = cloneStringMap(in.References)
+	out.References = cloneReferenceSourceMap(in.References)
+	if len(in.Artifacts) > 0 {
+		out.Artifacts = make(map[string]pipeline.ArtifactLaneProfile, len(in.Artifacts))
+		for key, lane := range in.Artifacts {
+			out.Artifacts[key] = cloneArtifactLaneProfile(lane)
+		}
+	}
+	if in.Steps != nil {
+		out.Steps = make([]pipeline.PipelineStepProfile, len(in.Steps))
+		for i, step := range in.Steps {
+			out.Steps[i] = clonePipelineStepProfile(step)
+		}
+	}
+	return out
+}
+
+func clonePipelineStepProfile(in pipeline.PipelineStepProfile) pipeline.PipelineStepProfile {
+	out := in
+	out.ID = in.ID
+	out.References = cloneReferenceSourceMap(in.References)
 	if len(in.Artifacts) > 0 {
 		out.Artifacts = make(map[string]pipeline.ArtifactLaneProfile, len(in.Artifacts))
 		for key, lane := range in.Artifacts {
@@ -122,7 +141,7 @@ func cloneArtifactLaneProfile(in pipeline.ArtifactLaneProfile) pipeline.Artifact
 	out.Extract = cloneModuleBinding(in.Extract)
 	out.Merge = cloneModuleBinding(in.Merge)
 	out.Normalize = cloneModuleBinding(in.Normalize)
-	out.References = cloneStringMap(in.References)
+	out.References = cloneReferenceSourceMap(in.References)
 	if len(in.Validators) > 0 {
 		out.Validators = make([]pipeline.ModuleBinding, len(in.Validators))
 		for i, binding := range in.Validators {
@@ -143,12 +162,32 @@ func cloneStringMap(in map[string]string) map[string]string {
 	return out
 }
 
+func cloneReferenceSourceMap(in map[string]pipeline.ReferenceSource) map[string]pipeline.ReferenceSource {
+	if len(in) == 0 {
+		return nil
+	}
+	out := make(map[string]pipeline.ReferenceSource, len(in))
+	for key, source := range in {
+		out[key] = cloneReferenceSource(source)
+	}
+	return out
+}
+
+func cloneReferenceSource(in pipeline.ReferenceSource) pipeline.ReferenceSource {
+	out := in
+	if in.Artifact != nil {
+		artifact := *in.Artifact
+		out.Artifact = &artifact
+	}
+	return out
+}
+
 func cloneModuleBinding(in pipeline.ModuleBinding) pipeline.ModuleBinding {
 	out := in
 	if len(in.Options) > 0 {
 		out.Options = cloneOptions(in.Options)
 	}
-	out.References = cloneStringMap(in.References)
+	out.References = cloneReferenceSourceMap(in.References)
 	out.Validators = cloneValidatorOverride(in.Validators)
 	return out
 }