Make `ChartRepository`'s cache path customize via the `Entry`

Signed-off-by: Douglas Camata <159076+douglascamata@users.noreply.github.com>

pkg/repo/chartrepo.go

@@ -48,6 +48,7 @@ type Entry struct {
 	CAFile                string `json:"caFile"`
 	InsecureSkipTLSverify bool   `json:"insecure_skip_tls_verify"`
 	PassCredentialsAll    bool   `json:"pass_credentials_all"`
+	CachePath             string `json:"cache_path"`
 }
 
 // ChartRepository represents a chart repository
@@ -71,11 +72,16 @@ func NewChartRepository(cfg *Entry, getters getter.Providers) (*ChartRepository,
 		return nil, errors.Errorf("could not find protocol handler for: %s", u.Scheme)
 	}
 
+	cachePath := helmpath.CachePath("repository")
+	if cfg.CachePath != "" {
+		cachePath = cfg.CachePath
+	}
+
 	return &ChartRepository{
 		Config:    cfg,
 		IndexFile: NewIndexFile(),
 		Client:    client,
-		CachePath: helmpath.CachePath("repository"),
+		CachePath: cachePath,
 	}, nil
 }
 

pkg/repo/chartrepo_test.go

@@ -73,6 +73,40 @@ func TestLoadChartRepository(t *testing.T) {
 	}
 }
 
+func TestNewChartRepositoryWithCachePath(t *testing.T) {
+	srv, err := startLocalServerForTests(nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer srv.Close()
+
+	cacheDir := t.TempDir()
+	r, err := NewChartRepository(&Entry{
+		Name:      testRepository,
+		URL:       srv.URL,
+		CachePath: cacheDir,
+	}, getter.All(&cli.EnvSettings{}))
+	if err != nil {
+		t.Errorf("Problem creating chart repository from %s: %v", testRepository, err)
+	}
+
+	if err := r.Load(); err != nil {
+		t.Errorf("Problem loading chart repository from %s: %v", testRepository, err)
+	}
+
+	_, err = r.DownloadIndexFile()
+	if err != nil {
+		t.Errorf("Problem downloading index file from %s: %v", testRepository, err)
+	}
+
+	if _, err := os.Stat(filepath.Join(cacheDir, helmpath.CacheIndexFile(r.Config.Name))); err != nil {
+		t.Errorf("Expected index.yaml to be created in %s, but got an error: %v", cacheDir, err)
+	}
+	if _, err := os.Stat(filepath.Join(cacheDir, helmpath.CacheChartsFile(r.Config.Name))); err != nil {
+		t.Errorf("Expected charts to be created in %s, but got an error: %v", cacheDir, err)
+	}
+}
+
 func TestIndex(t *testing.T) {
 	r, err := NewChartRepository(&Entry{
 		Name: testRepository,