Proposed solution for sub sub chart alias bug

Signed-off-by: Jonas Lergell <jonaslergell@gmail.com>

pkg/chart/dependency.go

@@ -47,6 +47,23 @@ type Dependency struct {
 	ImportValues []interface{} `json:"import-values,omitempty"`
 	// Alias usable alias to be used for the chart
 	Alias string `json:"alias,omitempty"`
+
+	originalName string
+}
+
+// SetNameFromAlias sets originalName if empty, so can be called multiple times.
+// This assumes that the first time SetNameFromAlias is called, d.Name is the name as
+// specified in the dependency's Chart.yaml
+func (d *Dependency) SetNameFromAlias() {
+	if d.originalName == "" {
+		d.originalName = d.Name
+	}
+	d.Name = d.Alias
+}
+
+// EqualName returns true if the dependency's name or originalName is equal to the given name.
+func (d *Dependency) EqualName(name string) bool {
+	return d.Name == name || d.originalName == name
 }
 
 // Validate checks for common problems with the dependency datastructure in

pkg/chartutil/dependencies.go

@@ -95,7 +95,7 @@ func getAliasDependency(charts []*chart.Chart, dep *chart.Dependency) *chart.Cha
 		if c == nil {
 			continue
 		}
-		if c.Name() != dep.Name {
+		if !dep.EqualName(c.Name()) {
 			continue
 		}
 		if !IsCompatibleRange(dep.Version, c.Metadata.Version) {
@@ -129,7 +129,7 @@ func processDependencyEnabled(c *chart.Chart, v map[string]interface{}, path str
 Loop:
 	for _, existing := range c.Dependencies() {
 		for _, req := range c.Metadata.Dependencies {
-			if existing.Name() == req.Name && IsCompatibleRange(req.Version, existing.Metadata.Version) {
+			if req.EqualName(existing.Name()) && IsCompatibleRange(req.Version, existing.Metadata.Version) {
 				continue Loop
 			}
 		}
@@ -141,7 +141,7 @@ Loop:
 			chartDependencies = append(chartDependencies, chartDependency)
 		}
 		if req.Alias != "" {
-			req.Name = req.Alias
+			req.SetNameFromAlias()
 		}
 	}
 	c.SetDependencies(chartDependencies...)