Replace Helm Hub with Artifact Hub

Signed-off-by: Scott Rigby <scott@r6by.com>

README.md

@@ -9,7 +9,7 @@ Helm is a tool for managing Charts. Charts are packages of pre-configured Kubern
 
 Use Helm to:
 
-- Find and use [popular software packaged as Helm Charts](https://hub.helm.sh) to run in Kubernetes
+- Find and use [popular software packaged as Helm Charts](https://artifacthub.io/packages/search?kind=0) to run in Kubernetes
 - Share your own applications as Helm Charts
 - Create reproducible builds of your Kubernetes applications
 - Intelligently manage your Kubernetes manifest files

cmd/helm/search.go

@@ -24,8 +24,8 @@ import (
 
 const searchDesc = `
 Search provides the ability to search for Helm charts in the various places
-they can be stored including the Helm Hub and repositories you have added. Use
-search subcommands to search different locations for charts.
+they can be stored including the Artifact Hub and repositories you have added.
+Use search subcommands to search different locations for charts.
 `
 
 func newSearchCmd(out io.Writer) *cobra.Command {

cmd/helm/search_hub.go

@@ -30,15 +30,23 @@ import (
 )
 
 const searchHubDesc = `
-Search the Helm Hub or an instance of Monocular for Helm charts.
-
-The Helm Hub provides a centralized search for publicly available distributed
-charts. It is maintained by the Helm project. It can be visited at
-https://hub.helm.sh
-
-Monocular is a web-based application that enables the search and discovery of
-charts from multiple Helm Chart repositories. It is the codebase that powers the
-Helm Hub. You can find it at https://github.com/helm/monocular
+Search for Helm charts in the Artifact Hub or your own hub instance.
+
+Artifact Hub is a web-based application that enables finding, installing, and
+publishing packages and configurations for CNCF projects, including publicly
+available distributed charts Helm charts. It is a Cloud Native Computing
+Foundation sandbox project. You can browse the hub at https://artifacthub.io/
+
+The [KEYWORD] argument accepts either a keyword string, or quoted string of rich
+query options. For rich query options documentation, see
+https://artifacthub.github.io/hub/api/#/Packages/get_packages_search
+
+Previous versions of Helm used an instance of Monocular as the default
+'endpoint', so for backwards compatibility Artifact Hub is compatible with the
+Monocular search API. Similarly, when setting the 'endpoint' flag, the specified
+endpoint must also be implement a Monocular compatible search API endpoint.
+Note that when specifying a Monocular instance as the 'endpoint', rich queries
+are not supported. For API details, see https://github.com/helm/monocular
 `
 
 type searchHubOptions struct {
@@ -51,8 +59,8 @@ func newSearchHubCmd(out io.Writer) *cobra.Command {
 	o := &searchHubOptions{}
 
 	cmd := &cobra.Command{
-		Use:   "hub [keyword]",
-		Short: "search for charts in the Helm Hub or an instance of Monocular",
+		Use:   "hub [KEYWORD]",
+		Short: "search for charts in the Artifact Hub or your own hub instance",
 		Long:  searchHubDesc,
 		RunE: func(cmd *cobra.Command, args []string) error {
 			return o.run(out, args)
@@ -60,7 +68,7 @@ func newSearchHubCmd(out io.Writer) *cobra.Command {
 	}
 
 	f := cmd.Flags()
-	f.StringVar(&o.searchEndpoint, "endpoint", "https://hub.helm.sh", "monocular instance to query for charts")
+	f.StringVar(&o.searchEndpoint, "endpoint", "https://artifacthub.io", "Hub instance to query for charts")
 	f.UintVar(&o.maxColWidth, "max-col-width", 50, "maximum column width for output table")
 	bindOutputFlag(cmd, &o.outputFormat)
 

internal/monocular/client_test.go

@@ -21,11 +21,11 @@ import (
 )
 
 func TestNew(t *testing.T) {
-	c, err := New("https://hub.helm.sh")
+	c, err := New("https://artifacthub.io")
 	if err != nil {
 		t.Errorf("error creating client: %s", err)
 	}
-	if c.BaseURL != "https://hub.helm.sh" {
-		t.Errorf("incorrect BaseURL. Expected \"https://hub.helm.sh\" but got %q", c.BaseURL)
+	if c.BaseURL != "https://artifacthub.io" {
+		t.Errorf("incorrect BaseURL. Expected \"https://artifacthub.io\" but got %q", c.BaseURL)
 	}
 }

internal/monocular/doc.go

@@ -14,8 +14,9 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-// Package monocular contains the logic for interacting with monocular instances
-// like the Helm Hub.
+// Package monocular contains the logic for interacting with a Monocular
+// compatible search API endpoint. For example, as implemented by the Artifact
+// Hub.
 //
-// This is a library for interacting with monocular
+// This is a library for interacting with a monocular compatible search API
 package monocular