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127 lines
3.3 KiB
127 lines
3.3 KiB
/*
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Copyright The Helm Authors.
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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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"os"
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"path/filepath"
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"strings"
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"github.com/pkg/errors"
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"github.com/spf13/cobra"
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"helm.sh/helm/v3/pkg/action"
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"helm.sh/helm/v3/pkg/cli/values"
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"helm.sh/helm/v3/pkg/getter"
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)
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var longLintHelp = `
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This command takes a path to a chart and runs a series of tests to verify that
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the chart is well-formed.
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If the linter encounters things that will cause the chart to fail installation,
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it will emit [ERROR] messages. If it encounters issues that break with convention
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or recommendation, it will emit [WARNING] messages.
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`
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func newLintCmd(out io.Writer) *cobra.Command {
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client := action.NewLint()
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valueOpts := &values.Options{}
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cmd := &cobra.Command{
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Use: "lint PATH",
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Short: "examine a chart for possible issues",
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Long: longLintHelp,
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RunE: func(cmd *cobra.Command, args []string) error {
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paths := []string{"."}
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if len(args) > 0 {
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paths = args
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}
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if client.WithSubcharts {
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for _, p := range paths {
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filepath.Walk(filepath.Join(p, "charts"), func(path string, info os.FileInfo, err error) error {
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if info != nil {
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if info.Name() == "Chart.yaml" {
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paths = append(paths, filepath.Dir(path))
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} else if strings.HasSuffix(path, ".tgz") || strings.HasSuffix(path, ".tar.gz") {
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paths = append(paths, path)
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}
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}
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return nil
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})
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}
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}
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client.Namespace = settings.Namespace()
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vals, err := valueOpts.MergeValues(getter.All(settings))
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if err != nil {
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return err
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}
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var message strings.Builder
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failed := 0
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for _, path := range paths {
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fmt.Fprintf(&message, "==> Linting %s\n", path)
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result := client.Run([]string{path}, vals)
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// All the Errors that are generated by a chart
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// that failed a lint will be included in the
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// results.Messages so we only need to print
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// the Errors if there are no Messages.
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if len(result.Messages) == 0 {
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for _, err := range result.Errors {
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fmt.Fprintf(&message, "Error %s\n", err)
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}
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}
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for _, msg := range result.Messages {
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fmt.Fprintf(&message, "%s\n", msg)
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}
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if len(result.Errors) != 0 {
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failed++
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}
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// Adding extra new line here to break up the
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// results, stops this from being a big wall of
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// text and makes it easier to follow.
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fmt.Fprint(&message, "\n")
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}
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fmt.Fprint(out, message.String())
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summary := fmt.Sprintf("%d chart(s) linted, %d chart(s) failed", len(paths), failed)
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if failed > 0 {
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return errors.New(summary)
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}
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fmt.Fprintln(out, summary)
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return nil
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},
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}
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f := cmd.Flags()
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f.BoolVar(&client.Strict, "strict", false, "fail on lint warnings")
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f.BoolVar(&client.WithSubcharts, "with-subcharts", false, "lint dependent charts")
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addValueOptionsFlags(f, valueOpts)
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return cmd
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}
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