Add complete dependency list in "hugo env -v"

Fixes #8400

commands/env.go

@@ -16,6 +16,8 @@ package commands
 import (
 	"runtime"
 
+	"github.com/gohugoio/hugo/common/hugo"
+
 	"github.com/spf13/cobra"
 	jww "github.com/spf13/jwalterweatherman"
 )
@@ -31,15 +33,28 @@ func newEnvCmd() *envCmd {
 		baseCmd: newBaseCmd(&cobra.Command{
 			Use:   "env",
 			Short: "Print Hugo version and environment info",
-			Long:  `Print Hugo version and environment info. This is useful in Hugo bug reports.`,
+			Long: `Print Hugo version and environment info. This is useful in Hugo bug reports.
+
+If you add the -v flag, you will get a full dependency list.
+`,
 			RunE: func(cmd *cobra.Command, args []string) error {
 				printHugoVersion()
 				jww.FEEDBACK.Printf("GOOS=%q\n", runtime.GOOS)
 				jww.FEEDBACK.Printf("GOARCH=%q\n", runtime.GOARCH)
 				jww.FEEDBACK.Printf("GOVERSION=%q\n", runtime.Version())
 
+				isVerbose, _ := cmd.Flags().GetBool("verbose")
+
+				if isVerbose {
+					deps := hugo.GetDependencyList()
+					for _, dep := range deps {
+						jww.FEEDBACK.Printf("%s\n", dep)
+					}
+				}
+
 				return nil
 			},
 		}),
 	}
+
 }