130
vendor/helm.sh/helm/v3/pkg/action/show.go
vendored
Normal file
130
vendor/helm.sh/helm/v3/pkg/action/show.go
vendored
Normal file
@@ -0,0 +1,130 @@
|
||||
/*
|
||||
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 action
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"strings"
|
||||
|
||||
"github.com/pkg/errors"
|
||||
"k8s.io/cli-runtime/pkg/printers"
|
||||
"sigs.k8s.io/yaml"
|
||||
|
||||
"helm.sh/helm/v3/pkg/chart"
|
||||
"helm.sh/helm/v3/pkg/chart/loader"
|
||||
"helm.sh/helm/v3/pkg/chartutil"
|
||||
)
|
||||
|
||||
// ShowOutputFormat is the format of the output of `helm show`
|
||||
type ShowOutputFormat string
|
||||
|
||||
const (
|
||||
// ShowAll is the format which shows all the information of a chart
|
||||
ShowAll ShowOutputFormat = "all"
|
||||
// ShowChart is the format which only shows the chart's definition
|
||||
ShowChart ShowOutputFormat = "chart"
|
||||
// ShowValues is the format which only shows the chart's values
|
||||
ShowValues ShowOutputFormat = "values"
|
||||
// ShowReadme is the format which only shows the chart's README
|
||||
ShowReadme ShowOutputFormat = "readme"
|
||||
)
|
||||
|
||||
var readmeFileNames = []string{"readme.md", "readme.txt", "readme"}
|
||||
|
||||
func (o ShowOutputFormat) String() string {
|
||||
return string(o)
|
||||
}
|
||||
|
||||
// Show is the action for checking a given release's information.
|
||||
//
|
||||
// It provides the implementation of 'helm show' and its respective subcommands.
|
||||
type Show struct {
|
||||
ChartPathOptions
|
||||
Devel bool
|
||||
OutputFormat ShowOutputFormat
|
||||
JSONPathTemplate string
|
||||
chart *chart.Chart // for testing
|
||||
}
|
||||
|
||||
// NewShow creates a new Show object with the given configuration.
|
||||
func NewShow(output ShowOutputFormat) *Show {
|
||||
return &Show{
|
||||
OutputFormat: output,
|
||||
}
|
||||
}
|
||||
|
||||
// Run executes 'helm show' against the given release.
|
||||
func (s *Show) Run(chartpath string) (string, error) {
|
||||
if s.chart == nil {
|
||||
chrt, err := loader.Load(chartpath)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
s.chart = chrt
|
||||
}
|
||||
cf, err := yaml.Marshal(s.chart.Metadata)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
||||
var out strings.Builder
|
||||
if s.OutputFormat == ShowChart || s.OutputFormat == ShowAll {
|
||||
fmt.Fprintf(&out, "%s\n", cf)
|
||||
}
|
||||
|
||||
if (s.OutputFormat == ShowValues || s.OutputFormat == ShowAll) && s.chart.Values != nil {
|
||||
if s.OutputFormat == ShowAll {
|
||||
fmt.Fprintln(&out, "---")
|
||||
}
|
||||
if s.JSONPathTemplate != "" {
|
||||
printer, err := printers.NewJSONPathPrinter(s.JSONPathTemplate)
|
||||
if err != nil {
|
||||
return "", errors.Wrapf(err, "error parsing jsonpath %s", s.JSONPathTemplate)
|
||||
}
|
||||
printer.Execute(&out, s.chart.Values)
|
||||
} else {
|
||||
for _, f := range s.chart.Raw {
|
||||
if f.Name == chartutil.ValuesfileName {
|
||||
fmt.Fprintln(&out, string(f.Data))
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if s.OutputFormat == ShowReadme || s.OutputFormat == ShowAll {
|
||||
if s.OutputFormat == ShowAll {
|
||||
fmt.Fprintln(&out, "---")
|
||||
}
|
||||
readme := findReadme(s.chart.Files)
|
||||
if readme == nil {
|
||||
return out.String(), nil
|
||||
}
|
||||
fmt.Fprintf(&out, "%s\n", readme.Data)
|
||||
}
|
||||
return out.String(), nil
|
||||
}
|
||||
|
||||
func findReadme(files []*chart.File) (file *chart.File) {
|
||||
for _, file := range files {
|
||||
for _, n := range readmeFileNames {
|
||||
if strings.EqualFold(file.Name, n) {
|
||||
return file
|
||||
}
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
Reference in New Issue
Block a user