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.
130 lines
3.5 KiB
130 lines
3.5 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 action
|
|
|
|
import (
|
|
"os"
|
|
"path/filepath"
|
|
"strings"
|
|
|
|
"github.com/pkg/errors"
|
|
|
|
"helm.sh/helm/v3/pkg/chartutil"
|
|
"helm.sh/helm/v3/pkg/lint"
|
|
"helm.sh/helm/v3/pkg/lint/support"
|
|
)
|
|
|
|
// Lint is the action for checking that the semantics of a chart are well-formed.
|
|
//
|
|
// It provides the implementation of 'helm lint'.
|
|
type Lint struct {
|
|
Strict bool
|
|
Namespace string
|
|
WithSubcharts bool
|
|
Quiet bool
|
|
KubeVersion *chartutil.KubeVersion
|
|
}
|
|
|
|
// LintResult is the result of Lint
|
|
type LintResult struct {
|
|
TotalChartsLinted int
|
|
Messages []support.Message
|
|
Errors []error
|
|
}
|
|
|
|
// NewLint creates a new Lint object with the given configuration.
|
|
func NewLint() *Lint {
|
|
return &Lint{}
|
|
}
|
|
|
|
// Run executes 'helm Lint' against the given chart.
|
|
func (l *Lint) Run(paths []string, vals map[string]interface{}) *LintResult {
|
|
lowestTolerance := support.ErrorSev
|
|
if l.Strict {
|
|
lowestTolerance = support.WarningSev
|
|
}
|
|
result := &LintResult{}
|
|
for _, path := range paths {
|
|
linter, err := lintChart(path, vals, l.Namespace, l.KubeVersion)
|
|
if err != nil {
|
|
result.Errors = append(result.Errors, err)
|
|
continue
|
|
}
|
|
|
|
result.Messages = append(result.Messages, linter.Messages...)
|
|
result.TotalChartsLinted++
|
|
for _, msg := range linter.Messages {
|
|
if msg.Severity >= lowestTolerance {
|
|
result.Errors = append(result.Errors, msg.Err)
|
|
}
|
|
}
|
|
}
|
|
return result
|
|
}
|
|
|
|
// HasWarningsOrErrors checks is LintResult has any warnings or errors
|
|
func HasWarningsOrErrors(result *LintResult) bool {
|
|
for _, msg := range result.Messages {
|
|
if msg.Severity > support.InfoSev {
|
|
return true
|
|
}
|
|
}
|
|
return len(result.Errors) > 0
|
|
}
|
|
|
|
func lintChart(path string, vals map[string]interface{}, namespace string, kubeVersion *chartutil.KubeVersion) (support.Linter, error) {
|
|
var chartPath string
|
|
linter := support.Linter{}
|
|
|
|
if strings.HasSuffix(path, ".tgz") || strings.HasSuffix(path, ".tar.gz") {
|
|
tempDir, err := os.MkdirTemp("", "helm-lint")
|
|
if err != nil {
|
|
return linter, errors.Wrap(err, "unable to create temp dir to extract tarball")
|
|
}
|
|
defer os.RemoveAll(tempDir)
|
|
|
|
file, err := os.Open(path)
|
|
if err != nil {
|
|
return linter, errors.Wrap(err, "unable to open tarball")
|
|
}
|
|
defer file.Close()
|
|
|
|
if err = chartutil.Expand(tempDir, file); err != nil {
|
|
return linter, errors.Wrap(err, "unable to extract tarball")
|
|
}
|
|
|
|
files, err := os.ReadDir(tempDir)
|
|
if err != nil {
|
|
return linter, errors.Wrapf(err, "unable to read temporary output directory %s", tempDir)
|
|
}
|
|
if !files[0].IsDir() {
|
|
return linter, errors.Errorf("unexpected file %s in temporary output directory %s", files[0].Name(), tempDir)
|
|
}
|
|
|
|
chartPath = filepath.Join(tempDir, files[0].Name())
|
|
} else {
|
|
chartPath = path
|
|
}
|
|
|
|
// Guard: Error out if this is not a chart.
|
|
if _, err := os.Stat(filepath.Join(chartPath, "Chart.yaml")); err != nil {
|
|
return linter, errors.Wrap(err, "unable to check Chart.yaml file in chart")
|
|
}
|
|
|
|
return lint.AllWithKubeVersion(chartPath, vals, namespace, kubeVersion), nil
|
|
}
|