feat: Add docsgen command (#862)

* feat: Add docsgen command

* docs: add CLI docs for support-bundle and preflight

cmd/docsgen/cli/root.go

@@ -0,0 +1,37 @@
+package cli
+
+import (
+	"log"
+	"os"
+
+	preflightcli "github.com/replicatedhq/troubleshoot/cmd/preflight/cli"
+	troubleshootcli "github.com/replicatedhq/troubleshoot/cmd/troubleshoot/cli"
+	"github.com/spf13/cobra"
+
+	"github.com/spf13/cobra/doc"
+)
+
+func RootCmd() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "docsgen",
+		Short: "Generate markdown docs for the commands in this project",
+	}
+	preflight := preflightcli.RootCmd()
+	troubleshoot := troubleshootcli.RootCmd()
+	commands := []*cobra.Command{preflight, troubleshoot}
+
+	for _, command := range commands {
+		err := doc.GenMarkdownTree(command, "./docs")
+		if err != nil {
+			log.Fatal(err)
+		}
+	}
+
+	return cmd
+}
+
+func InitAndExecute() {
+	if err := RootCmd().Execute(); err != nil {
+		os.Exit(1)
+	}
+}

cmd/docsgen/main.go

@@ -0,0 +1,10 @@
+package main
+
+import (
+	"github.com/replicatedhq/troubleshoot/cmd/docsgen/cli"
+	_ "k8s.io/client-go/plugin/pkg/client/auth"
+)
+
+func main() {
+	cli.InitAndExecute()
+}