fix helm lint --with-subcharts errot

Signed-off-by: wawa0210 <xiaozhang0210@hotmail.com>

cmd/helm/lint.go

@@ -27,6 +27,8 @@ import (
 	"github.com/spf13/cobra"
 
 	"helm.sh/helm/v3/pkg/action"
+	"helm.sh/helm/v3/pkg/chart/loader"
+	"helm.sh/helm/v3/pkg/chartutil"
 	"helm.sh/helm/v3/pkg/cli/values"
 	"helm.sh/helm/v3/pkg/getter"
 )
@@ -53,6 +55,27 @@ func newLintCmd(out io.Writer) *cobra.Command {
 			if len(args) > 0 {
 				paths = args
 			}
+			vals, err := valueOpts.MergeValues(getter.All(settings))
+			if err != nil {
+				return err
+			}
+
+			cp, err := client.ChartPathOptions.LocateChart(paths[0], settings)
+			if err != nil {
+				return err
+			}
+
+			// Check chart dependencies to make sure all are present in /charts
+			chartRequested, err := loader.Load(cp)
+			if err != nil {
+				return err
+			}
+
+			cvals, err := chartutil.CoalesceValues(chartRequested, vals)
+			if err != nil {
+				return nil
+			}
+
 			if client.WithSubcharts {
 				for _, p := range paths {
 					filepath.Walk(filepath.Join(p, "charts"), func(path string, info os.FileInfo, err error) error {
@@ -69,7 +92,6 @@ func newLintCmd(out io.Writer) *cobra.Command {
 			}
 
 			client.Namespace = settings.Namespace()
-			vals, err := valueOpts.MergeValues(getter.All(settings))
 			if err != nil {
 				return err
 			}
@@ -80,7 +102,7 @@ func newLintCmd(out io.Writer) *cobra.Command {
 			for _, path := range paths {
 				fmt.Fprintf(&message, "==> Linting %s\n", path)
 
-				result := client.Run([]string{path}, vals)
+				result := client.Run([]string{path}, cvals)
 
 				// All the Errors that are generated by a chart
 				// that failed a lint will be included in the

cmd/helm/testdata/output/lint-chart-with-bad-subcharts-with-subcharts.txt

@@ -1,20 +1 @@
-==> Linting testdata/testcharts/chart-with-bad-subcharts
-[INFO] Chart.yaml: icon is recommended
-[WARNING] templates/: directory not found
-[ERROR] : unable to load chart
-	error unpacking bad-subchart in chart-with-bad-subcharts: validation: chart.metadata.name is required
-
-==> Linting testdata/testcharts/chart-with-bad-subcharts/charts/bad-subchart
-[ERROR] Chart.yaml: name is required
-[ERROR] Chart.yaml: apiVersion is required. The value must be either "v1" or "v2"
-[ERROR] Chart.yaml: version is required
-[INFO] Chart.yaml: icon is recommended
-[WARNING] templates/: directory not found
-[ERROR] : unable to load chart
-	validation: chart.metadata.name is required
-
-==> Linting testdata/testcharts/chart-with-bad-subcharts/charts/good-subchart
-[INFO] Chart.yaml: icon is recommended
-[WARNING] templates/: directory not found
-
-Error: 3 chart(s) linted, 2 chart(s) failed
+Error: error unpacking bad-subchart in chart-with-bad-subcharts: validation: chart.metadata.name is required

cmd/helm/testdata/output/lint-chart-with-bad-subcharts.txt

@@ -1,7 +1 @@
-==> Linting testdata/testcharts/chart-with-bad-subcharts
-[INFO] Chart.yaml: icon is recommended
-[WARNING] templates/: directory not found
-[ERROR] : unable to load chart
-	error unpacking bad-subchart in chart-with-bad-subcharts: validation: chart.metadata.name is required
-
-Error: 1 chart(s) linted, 1 chart(s) failed
+Error: error unpacking bad-subchart in chart-with-bad-subcharts: validation: chart.metadata.name is required

pkg/action/lint.go

@@ -33,6 +33,7 @@ import (
 //
 // It provides the implementation of 'helm lint'.
 type Lint struct {
+	ChartPathOptions
 	Strict        bool
 	Namespace     string
 	WithSubcharts bool