🎨 Refactor, use ensureoder where necessary

pkg/installer/finalizer.go

@@ -22,6 +22,8 @@ import (
 	"github.com/ghodss/yaml"
 	"github.com/mudler/luet/pkg/api/core/types"
 	box "github.com/mudler/luet/pkg/box"
+	fileHelper "github.com/mudler/luet/pkg/helpers/file"
+	"github.com/mudler/luet/pkg/tree"
 
 	"github.com/pkg/errors"
 )
@@ -90,3 +92,47 @@ func NewLuetFinalizerFromYaml(data []byte) (*LuetFinalizer, error) {
 	}
 	return &p, err
 }
+
+func OrderFinalizers(allRepos types.PackageDatabase, toInstall map[string]ArtifactMatch, solution types.PackagesAssertions) ([]*types.Package, error) {
+	var toFinalize []*types.Package
+	if len(toInstall) == 1 {
+		for _, w := range toInstall {
+			if fileHelper.Exists(w.Package.Rel(tree.FinalizerFile)) {
+				// Finalizers needs to run in order and in sequence.
+				ordered, err := solution.Order(allRepos, w.Package.GetFingerPrint())
+				if err != nil {
+					return toFinalize, errors.Wrap(err, "While order a solution for "+w.Package.HumanReadableString())
+				}
+			ORDER:
+				for _, ass := range ordered {
+					if ass.Value {
+						installed, ok := toInstall[ass.Package.GetFingerPrint()]
+						if !ok {
+							// It was a dep already installed in the system, so we can skip it safely
+							continue ORDER
+						}
+						treePackage, err := installed.Repository.GetTree().GetDatabase().FindPackage(ass.Package)
+						if err != nil {
+							return toFinalize, errors.Wrap(err, "Error getting package "+ass.Package.HumanReadableString())
+						}
+
+						toFinalize = append(toFinalize, treePackage)
+					}
+				}
+			}
+		}
+	} else {
+		assertions, err := solution.EnsureOrder()
+		if err != nil {
+			return toFinalize, err
+		}
+
+		for _, o := range assertions {
+			if o.Value {
+				toFinalize = append(toFinalize, o.Package)
+			}
+		}
+	}
+
+	return toFinalize, nil
+}