fix: resolve issues found by linter in khelm 2

pkg/helm/render.go

@@ -129,17 +129,6 @@ func renderChart(chartRequested *chart.Chart, req *config.ChartConfig, getters g
 	return transformed, nil
 }
 
-// checkIfInstallable validates if a chart can be installed
-//
-// Application chart type is only installable
-func checkIfInstallable(ch *chart.Chart) error {
-	switch ch.Metadata.Type {
-	case "", "application":
-		return nil
-	}
-	return errors.Errorf("cannot install chart %q since it is of type %q", ch.Name(), ch.Metadata.Type)
-}
-
 func parseKubeVersion(version string) (kv chartutil.KubeVersion, err error) {
 	v, err := semver.NewVersion(version)
 	if err != nil {

pkg/helm/repositories.go

@@ -101,7 +101,7 @@ func newRepositories(settings *cli.EnvSettings, getters getter.Providers) (r *re
 		cacheDir:   settings.RepositoryCache,
 		indexFiles: map[string]*repo.IndexFile{},
 	}
-	if !filepath.IsAbs(string(settings.RepositoryConfig)) {
+	if !filepath.IsAbs(settings.RepositoryConfig) {
 		return nil, errors.Errorf("path to repositories.yaml must be absolute but was %q", settings.RepositoryConfig)
 	}
 	r.repos, err = repo.LoadFile(settings.RepositoryConfig)
@@ -353,8 +353,8 @@ func newTempRepositories(r *repositories) (*tempRepositories, error) {
 		return nil, errors.WithStack(err)
 	}
 	_ = tmpFile.Close()
-	err = r.repos.WriteFile(tmpFile.Name(), 640)
-	return &tempRepositories{r, tmpFile.Name()}, nil
+	err = r.repos.WriteFile(tmpFile.Name(), 0640)
+	return &tempRepositories{r, tmpFile.Name()}, err
 }
 
 func (f *tempRepositories) FilePath() string {