mirror of https://github.com/helm/helm
This basic version of helm inspect displays the Chart.yaml and values.yaml files on STDOUT. Closes #967pull/970/head
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/*
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Copyright 2016 The Kubernetes Authors All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package main
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import (
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"fmt"
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"io"
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"github.com/ghodss/yaml"
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"github.com/spf13/cobra"
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"k8s.io/helm/pkg/chartutil"
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"k8s.io/helm/pkg/helm"
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)
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const inspectDesc = `
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This command inspects a chart (directory, file, or URL) and displays information.
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Inspect prints the contents of the Chart.yaml file and the values.yaml file.
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`
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type inspectCmd struct {
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chartpath string
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out io.Writer
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client helm.Interface
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}
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func newInspectCmd(c helm.Interface, out io.Writer) *cobra.Command {
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insp := &inspectCmd{
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client: c,
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out: out,
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}
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cc := &cobra.Command{
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Use: "inspect [CHART]",
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Short: "inspect a chart",
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Long: installDesc,
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RunE: func(cmd *cobra.Command, args []string) error {
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if err := checkArgsLength(1, len(args), "chart name"); err != nil {
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return err
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}
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cp, err := locateChartPath(args[0])
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if err != nil {
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return err
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}
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insp.chartpath = cp
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return insp.run()
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},
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}
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return cc
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}
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func (i *inspectCmd) run() error {
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chrt, err := chartutil.Load(i.chartpath)
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if err != nil {
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return err
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}
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cf, err := yaml.Marshal(chrt.Metadata)
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if err != nil {
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return err
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}
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fmt.Fprintln(i.out, string(cf))
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fmt.Fprintln(i.out, "---")
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fmt.Fprintln(i.out, chrt.Values.Raw)
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return nil
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}
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/*
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Copyright 2016 The Kubernetes Authors All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package main
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import (
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"bytes"
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"io/ioutil"
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"strings"
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"testing"
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)
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func TestInspect(t *testing.T) {
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b := bytes.NewBuffer(nil)
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insp := &inspectCmd{
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chartpath: "testdata/testcharts/alpine",
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out: b,
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}
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insp.run()
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// Load the data from the textfixture directly.
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cdata, err := ioutil.ReadFile("testdata/testcharts/alpine/Chart.yaml")
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if err != nil {
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t.Fatal(err)
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}
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data, err := ioutil.ReadFile("testdata/testcharts/alpine/values.yaml")
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if err != nil {
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t.Fatal(err)
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}
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parts := strings.SplitN(b.String(), "---", 2)
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if len(parts) != 2 {
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t.Fatalf("Expected 2 parts, got %d", len(parts))
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}
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expect := []string{
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strings.TrimSpace(string(cdata)),
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strings.TrimSpace(string(data)),
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}
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// Problem: ghodss/yaml doesn't marshal into struct order. To solve, we
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// have to carefully craft the Chart.yaml to match.
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for i, got := range parts {
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got = strings.TrimSpace(got)
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if got != expect[i] {
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t.Errorf("Expected\n%q\nGot\n%q\n", expect[i], got)
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}
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}
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}
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@ -1,6 +1,6 @@
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name: alpine
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description: Deploy a basic Alpine Linux pod
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description: Deploy a basic Alpine Linux pod
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version: 0.1.0
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home: https://k8s.io/helm
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home: https://k8s.io/helm
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name: alpine
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sources:
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sources:
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- https://github.com/kubernetes/helm
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- https://github.com/kubernetes/helm
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version: 0.1.0
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