Return the total count of charts under the project in project API

- add new interface method to get total count of charts under namespaces by calling get index
- add new field 'chart_count' in project model
- append chart count to the project model in project API

Signed-off-by: Steven Zou <szou@vmware.com>

docs/swagger.yaml

@@ -3031,6 +3031,9 @@ definitions:
       repo_count:
         type: integer
         description: The number of the repositories under this project.
+      chart_count:
+        type: integer
+        description: The total number of charts under this project.
       metadata:
         description: The metadata of the project.
         $ref: '#/definitions/ProjectMetadata'

src/chartserver/handler_interface.go

@@ -77,6 +77,14 @@ type ServiceHandler interface {
 	// If succeed, a nil error will be returned;
 	// otherwise, a non-nil error will be got.
 	DeleteChart(namespace, chartName string) error
+
+	// GetCountOfCharts calculates and returns the total count of charts under the specified namespaces.
+	//
+	// namespaces []string : the namespaces to count charts
+	//
+	// If succeed, a unsigned integer with nil error will be returned;
+	// otherwise, a non-nil error will be got.
+	GetCountOfCharts(namespaces []string) (uint64, error)
 }
 
 // ProxyTrafficHandler defines the handler methods to handle the proxy traffic.

src/chartserver/handler_utility.go

@@ -15,6 +15,21 @@ const (
 	maxDeletionThreads = 10
 )
 
+// GetCountOfCharts calculates and returns the total count of charts under the specified namespaces.
+// See @ServiceHandler.GetCountOfCharts
+func (c *Controller) GetCountOfCharts(namespaces []string) (uint64, error) {
+	if namespaces == nil || len(namespaces) == 0 {
+		return 0, nil // Directly return 0 instead of non-nil error
+	}
+
+	indexFile, err := c.getIndexYaml(namespaces)
+	if err != nil {
+		return 0, err
+	}
+
+	return (uint64)(len(indexFile.Entries)), nil
+}
+
 // DeleteChart deletes all the chart versions of the specified chart under the namespace.
 // See @ServiceHandler.DeleteChart
 func (c *Controller) DeleteChart(namespace, chartName string) error {

src/chartserver/handler_utility_test.go

@@ -4,6 +4,38 @@ import (
 	"testing"
 )
 
+// Test the function GetCountOfCharts
+func TestGetCountOfCharts(t *testing.T) {
+	s, c, err := createMockObjects()
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer s.Close()
+
+	count, err := c.GetCountOfCharts([]string{})
+	if err != nil {
+		t.Fatalf("expect nil error but got %s", err)
+	}
+	if count != 0 {
+		t.Fatalf("expect 0 but got %d", count)
+	}
+
+	namespaces := []string{"repo1", "repo2"}
+	count, err = c.GetCountOfCharts(namespaces)
+	if err != nil {
+		t.Fatalf("expect nil error but got %s", err)
+	}
+
+	if count != 5 {
+		t.Fatalf("expect 5 but got %d", count)
+	}
+
+	_, err = c.GetCountOfCharts([]string{"not-existing-ns"})
+	if err == nil {
+		t.Fatal("expect non-nil error but got nil one")
+	}
+}
+
 // Test the function DeleteChart
 func TestDeleteChart(t *testing.T) {
 	s, c, err := createMockObjects()

src/common/models/project.go

@@ -34,6 +34,7 @@ type Project struct {
 	Togglable    bool              `orm:"-" json:"togglable"`
 	Role         int               `orm:"-" json:"current_user_role_id"`
 	RepoCount    int64             `orm:"-" json:"repo_count"`
+	ChartCount   uint64            `orm:"-" json:"chart_count"`
 	Metadata     map[string]string `orm:"-" json:"metadata"`
 }
 

src/core/api/project.go

@@ -418,6 +418,15 @@ func (p *ProjectAPI) populateProperties(project *models.Project) {
 	}
 
 	project.RepoCount = total
+
+	// Populate chart count property
+	count, err := chartController.GetCountOfCharts([]string{project.Name})
+	if err != nil {
+		log.Errorf("Failed to get total of charts under project %s: %v", project.Name, err)
+		p.CustomAbort(http.StatusInternalServerError, "")
+	}
+
+	project.ChartCount = count
 }
 
 // Put ...

src/core/api/project_test.go

@@ -101,6 +101,15 @@ func TestListProjects(t *testing.T) {
 	apiTest := newHarborAPI()
 	var result []apilib.Project
 
+	cMockServer, oldCtrl, err := mockChartController()
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer func() {
+		cMockServer.Close()
+		chartController = oldCtrl
+	}()
+
 	// ----------------------------case 1 : Response Code=200----------------------------//
 	fmt.Println("case 1: respose code:200")
 	httpStatusCode, result, err := apiTest.ProjectsGet(
@@ -183,6 +192,15 @@ func TestProGetByID(t *testing.T) {
 	var result apilib.Project
 	projectID := strconv.Itoa(addPID)
 
+	cMockServer, oldCtrl, err := mockChartController()
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer func() {
+		cMockServer.Close()
+		chartController = oldCtrl
+	}()
+
 	// ----------------------------case 1 : Response Code=200----------------------------//
 	fmt.Println("case 1: respose code:200")
 	httpStatusCode, result, err := apiTest.ProjectsGetByPID(projectID)

src/testing/chart_utility.go

@@ -35,6 +35,11 @@ var MockChartRepoHandler = http.HandlerFunc(func(w http.ResponseWriter, r *http.
 			w.Write([]byte(repo2IndexYaml))
 			return
 		}
+	case "/not-existing-ns/index.yaml":
+		if r.Method == http.MethodGet {
+			w.WriteHeader(http.StatusNotFound)
+			return
+		}
 	case "/repo1/charts/harbor-0.2.0.tgz",
 		"/library/charts/harbor-0.2.0.tgz":
 		if r.Method == http.MethodGet {