fix issue 5792

Signed-off-by: rokii <shangtaocn@gmail.com>

cmd/helm/testdata/output/upgrade-with-missing-dependencies.txt

@@ -1,3 +1 @@
-Error: "helm upgrade" requires 2 arguments
+Error: found in Chart.yaml, but missing in charts/ directory: reqsubchart2
-
-Usage:  helm upgrade [RELEASE] [CHART] [flags]

cmd/helm/testdata/testcharts/upgradetest/templates/configmap.yaml

@@ -0,0 +1,7 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: "{{ .Release.Name }}-configmap"
+data:
+  myvalue: "Hello World"
+  drink: {{ .Values.favoriteDrink }}

cmd/helm/upgrade_test.go

@@ -18,6 +18,8 @@ package main
 
 import (
 	"fmt"
+	"strings"
+	"io/ioutil"
 	"path/filepath"
 	"testing"
 
@@ -138,3 +140,61 @@ func TestUpgradeCmd(t *testing.T) {
 	}
 	runTestCmd(t, tests)
 }
+
+func TestUpgradeWithValue(t *testing.T) {
+	tmpChart := testTempDir(t)
+	configmapData, err := ioutil.ReadFile("testdata/testcharts/upgradetest/templates/configmap.yaml")
+	if err != nil {
+		t.Fatalf("Error loading template yaml %v", err)
+	}
+	cfile := &chart.Chart{
+		Metadata: &chart.Metadata{
+			APIVersion:  chart.APIVersionV1,
+			Name:        "testUpgradeChart",
+			Description: "A Helm chart for Kubernetes",
+			Version:     "0.1.0",
+		},
+		Templates: []*chart.File{&chart.File{Name: "templates/configmap.yaml", Data: configmapData}},
+	}
+	chartPath := filepath.Join(tmpChart, cfile.Metadata.Name)
+	if err := chartutil.SaveDir(cfile, tmpChart); err != nil {
+		t.Fatalf("Error creating chart for upgrade: %v", err)
+	}
+	ch, err := loader.Load(chartPath)
+	if err != nil {
+		t.Fatalf("Error loading chart: %v", err)
+	}
+	_ = release.Mock(&release.MockReleaseOptions{
+		Name:  "funny-bunny-v2",
+		Chart: ch,
+	})
+
+
+	relMock := func(n string, v int, ch *chart.Chart) *release.Release {
+		return release.Mock(&release.MockReleaseOptions{Name: n, Version: v, Chart: ch})
+	}
+
+	defer resetEnv()()
+
+	store := storageFixture()
+	
+	store.Create(relMock("funny-bunny-v2", 3, ch))
+	
+	cmd := fmt.Sprintf("upgrade funny-bunny-v2 --set favoriteDrink=tea '%s'", chartPath)
+	_, _, err = executeActionCommandC(store, cmd)
+	if err != nil {
+		t.Errorf("unexpected error, got '%v'", err)
+	}
+
+	updatedRel, err := store.Get("funny-bunny-v2", 4)
+	if err != nil {
+		t.Errorf("unexpected error, got '%v'", err)
+	}
+
+	if !strings.Contains(updatedRel.Manifest, "drink: tea") {
+		t.Errorf("The value is not set correctly. manifest: %s", updatedRel.Manifest)
+	}
+
+
+
+}

pkg/action/upgrade.go

@@ -45,8 +45,6 @@ type Upgrade struct {
 	Namespace string
 	Timeout   time.Duration
 	Wait      bool
-	// Values is a string containing (unparsed) YAML values.
-	Values       map[string]interface{}
 	DisableHooks bool
 	DryRun       bool
 	Force        bool
@@ -67,7 +65,7 @@ func NewUpgrade(cfg *Configuration) *Upgrade {
 
 // Run executes the upgrade on the given release.
 func (u *Upgrade) Run(name string, chart *chart.Chart) (*release.Release, error) {
-	if err := chartutil.ProcessDependencies(chart, u.Values); err != nil {
+	if err := chartutil.ProcessDependencies(chart, u.rawValues); err != nil {
 		return nil, err
 	}
 
@@ -154,7 +152,7 @@ func (u *Upgrade) prepareUpgrade(name string, chart *chart.Chart) (*release.Rele
 	if err != nil {
 		return nil, nil, err
 	}
-	valuesToRender, err := chartutil.ToRenderValues(chart, u.Values, options, caps)
+	valuesToRender, err := chartutil.ToRenderValues(chart, u.rawValues, options, caps)
 	if err != nil {
 		return nil, nil, err
 	}
@@ -169,7 +167,7 @@ func (u *Upgrade) prepareUpgrade(name string, chart *chart.Chart) (*release.Rele
 		Name:      name,
 		Namespace: currentRelease.Namespace,
 		Chart:     chart,
-		Config:    u.Values,
+		Config:    u.rawValues,
 		Info: &release.Info{
 			FirstDeployed: currentRelease.Info.FirstDeployed,
 			LastDeployed:  Timestamper(),
@@ -262,7 +260,7 @@ func (u *Upgrade) reuseValues(chart *chart.Chart, current *release.Release) erro
 			return errors.Wrap(err, "failed to rebuild old values")
 		}
 
-		u.Values = chartutil.CoalesceTables(current.Config, u.Values)
+		u.rawValues = chartutil.CoalesceTables(current.Config, u.rawValues)
 
 		chart.Values = oldVals
 
@@ -271,7 +269,7 @@ func (u *Upgrade) reuseValues(chart *chart.Chart, current *release.Release) erro
 
 	if len(u.Values) == 0 && len(current.Config) > 0 {
 		u.cfg.Log("copying values from %s (v%d) to new release.", current.Name, current.Version)
-		u.Values = current.Config
+		u.rawValues = current.Config
 	}
 	return nil
 }