mirror of https://github.com/helm/helm
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
151 lines
4.3 KiB
151 lines
4.3 KiB
/*
|
|
Copyright The Helm Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package main
|
|
|
|
import (
|
|
"fmt"
|
|
"io"
|
|
"strings"
|
|
|
|
"github.com/gosuri/uitable"
|
|
"github.com/pkg/errors"
|
|
"github.com/spf13/cobra"
|
|
|
|
"helm.sh/helm/v3/internal/monocular"
|
|
"helm.sh/helm/v3/pkg/cli/output"
|
|
)
|
|
|
|
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
|
|
`
|
|
|
|
type searchHubOptions struct {
|
|
searchEndpoint string
|
|
maxColWidth uint
|
|
outputFormat output.Format
|
|
}
|
|
|
|
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",
|
|
Long: searchHubDesc,
|
|
RunE: func(cmd *cobra.Command, args []string) error {
|
|
return o.run(out, args)
|
|
},
|
|
}
|
|
|
|
f := cmd.Flags()
|
|
f.StringVar(&o.searchEndpoint, "endpoint", "https://hub.helm.sh", "monocular instance to query for charts")
|
|
f.UintVar(&o.maxColWidth, "max-col-width", 50, "maximum column width for output table")
|
|
bindOutputFlag(cmd, &o.outputFormat)
|
|
|
|
return cmd
|
|
}
|
|
|
|
func (o *searchHubOptions) run(out io.Writer, args []string) error {
|
|
c, err := monocular.New(o.searchEndpoint)
|
|
if err != nil {
|
|
return errors.Wrap(err, fmt.Sprintf("unable to create connection to %q", o.searchEndpoint))
|
|
}
|
|
|
|
q := strings.Join(args, " ")
|
|
results, err := c.Search(q)
|
|
if err != nil {
|
|
debug("%s", err)
|
|
return fmt.Errorf("unable to perform search against %q", o.searchEndpoint)
|
|
}
|
|
|
|
return o.outputFormat.Write(out, newHubSearchWriter(results, o.searchEndpoint, o.maxColWidth))
|
|
}
|
|
|
|
type hubChartElement struct {
|
|
URL string
|
|
Version string
|
|
AppVersion string
|
|
Description string
|
|
}
|
|
|
|
type hubSearchWriter struct {
|
|
elements []hubChartElement
|
|
columnWidth uint
|
|
}
|
|
|
|
func newHubSearchWriter(results []monocular.SearchResult, endpoint string, columnWidth uint) *hubSearchWriter {
|
|
var elements []hubChartElement
|
|
for _, r := range results {
|
|
url := endpoint + "/charts/" + r.ID
|
|
elements = append(elements, hubChartElement{url, r.Relationships.LatestChartVersion.Data.Version, r.Relationships.LatestChartVersion.Data.AppVersion, r.Attributes.Description})
|
|
}
|
|
return &hubSearchWriter{elements, columnWidth}
|
|
}
|
|
|
|
func (h *hubSearchWriter) WriteTable(out io.Writer) error {
|
|
if len(h.elements) == 0 {
|
|
_, err := out.Write([]byte("No results found\n"))
|
|
if err != nil {
|
|
return fmt.Errorf("unable to write results: %s", err)
|
|
}
|
|
return nil
|
|
}
|
|
table := uitable.New()
|
|
table.MaxColWidth = h.columnWidth
|
|
table.AddRow("URL", "CHART VERSION", "APP VERSION", "DESCRIPTION")
|
|
for _, r := range h.elements {
|
|
table.AddRow(r.URL, r.Version, r.AppVersion, r.Description)
|
|
}
|
|
return output.EncodeTable(out, table)
|
|
}
|
|
|
|
func (h *hubSearchWriter) WriteJSON(out io.Writer) error {
|
|
return h.encodeByFormat(out, output.JSON)
|
|
}
|
|
|
|
func (h *hubSearchWriter) WriteYAML(out io.Writer) error {
|
|
return h.encodeByFormat(out, output.YAML)
|
|
}
|
|
|
|
func (h *hubSearchWriter) encodeByFormat(out io.Writer, format output.Format) error {
|
|
// Initialize the array so no results returns an empty array instead of null
|
|
chartList := make([]hubChartElement, 0, len(h.elements))
|
|
|
|
for _, r := range h.elements {
|
|
chartList = append(chartList, hubChartElement{r.URL, r.Version, r.AppVersion, r.Description})
|
|
}
|
|
|
|
switch format {
|
|
case output.JSON:
|
|
return output.EncodeJSON(out, chartList)
|
|
case output.YAML:
|
|
return output.EncodeYAML(out, chartList)
|
|
}
|
|
|
|
// Because this is a non-exported function and only called internally by
|
|
// WriteJSON and WriteYAML, we shouldn't get invalid types
|
|
return nil
|
|
}
|