Use helm show chart to identify chart version

Signed-off-by: Felipe Santos <felipecassiors@gmail.com>

pkg/state/state.go

@@ -867,7 +867,7 @@ func (st *HelmState) SyncReleases(affectedReleases *AffectedReleases, helm helme
 					m.Unlock()
 					installedVersion, err := st.getDeployedVersion(context, helm, release)
 					if err != nil { // err is not really impacting so just log it
-						st.logger.Debugf("getting deployed release version failed:%v", err)
+						st.logger.Debugf("getting deployed release version failed: %v", err)
 					} else {
 						release.installedVersion = installedVersion
 					}
@@ -938,8 +938,11 @@ func (st *HelmState) getDeployedVersion(context helmexec.HelmContext, helm helme
 		if len(versions) > 0 {
 			return versions[1], nil
 		} else {
-			//fails to find the version
-			return "failed to get version", errors.New("Failed to get the version for:" + chartName)
+			chartMetadata, err := helm.ShowChart(release.Chart)
+			if err != nil {
+				return "failed to get version", errors.New("Failed to get the version for: " + chartName)
+			}
+			return chartMetadata.Version, nil
 		}
 	} else {
 		return "failed to get version", err

pkg/state/state_test.go

@@ -1455,6 +1455,16 @@ func TestGetDeployedVersion(t *testing.T) {
 										foo-bar-release	1       	Wed Apr 17 17:39:04 2019	DEPLOYED	foo-bar-1.0.0-alpha+001	0.1.0      	default`,
 			installedVersion: "1.0.0-alpha+001",
 		},
+		{
+			name: "chart version from helm show chart",
+			release: ReleaseSpec{
+				Name:  "foo",
+				Chart: "../../foo-bar",
+			},
+			listResult: `NAME 	REVISION	UPDATED                 	STATUS  	CHART                      	APP VERSION	NAMESPACE
+										foo	1       	Wed Apr 17 17:39:04 2019	DEPLOYED	foo-bar      	0.1.0      	default`,
+			installedVersion: "3.2.0",
+		},
 	}
 	for i := range tests {
 		tt := tests[i]
@@ -1467,6 +1477,7 @@ func TestGetDeployedVersion(t *testing.T) {
 				valsRuntime:    valsRuntime,
 				RenderedValues: map[string]interface{}{},
 			}
+
 			helm := &exectest.Helm{
 				Lists: map[exectest.ListKey]string{},
 			}