feat: Add global `--debug` flag for passing `--debug` to helm (#1236)

Add a global flag --debug that sets the logging level to debug and passes the global flag --debug to Helm through the implementation of subcommands’ --args.

Resolves #1104

Co-authored-by: ayoub mrini <amrini@wiremind.fr>

main.go

@@ -13,7 +13,6 @@ import (
 	"github.com/roboll/helmfile/pkg/state"
 	"github.com/urfave/cli"
 	"go.uber.org/zap"
-	"go.uber.org/zap/zapcore"
 )
 
 var logger *zap.SugaredLogger
@@ -22,14 +21,11 @@ func configureLogging(c *cli.Context) error {
 	// Valid levels:
 	// https://github.com/uber-go/zap/blob/7e7e266a8dbce911a49554b945538c5b950196b8/zapcore/level.go#L126
 	logLevel := c.GlobalString("log-level")
-	if c.GlobalBool("quiet") {
+	if c.GlobalBool("debug") {
+		logLevel = "debug"
+	} else if c.GlobalBool("quiet") {
 		logLevel = "warn"
 	}
-	var level zapcore.Level
-	err := level.Set(logLevel)
-	if err != nil {
-		return err
-	}
 	logger = helmexec.NewLogger(os.Stderr, logLevel)
 	if c.App.Metadata == nil {
 		// Auto-initialised in 1.19.0
@@ -76,6 +72,10 @@ func main() {
 			Name:  "kube-context",
 			Usage: "Set kubectl context. Uses current context by default",
 		},
+		cli.BoolFlag{
+			Name:  "debug",
+			Usage: "Enable verbose output for Helm and set log-level to debug, this disables --quiet/-q effect",
+		},
 		cli.BoolFlag{
 			Name:  "no-color",
 			Usage: "Output without color",
@@ -539,7 +539,13 @@ func (c configImpl) Values() []string {
 }
 
 func (c configImpl) Args() string {
-	return c.c.String("args")
+	args := c.c.String("args")
+	enableHelmDebug := c.c.GlobalBool("debug")
+
+	if enableHelmDebug {
+		args = fmt.Sprintf("%s %s", args, "--debug")
+	}
+	return args
 }
 
 func (c configImpl) OutputDir() string {