feat: add cli help menus

cmd/rip/main_test.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"bytes"
 	"errors"
 	"os"
 	"path/filepath"
@@ -206,6 +207,58 @@ func TestParseGlobalArgsNoDBBeforeCommand(t *testing.T) {
 	}
 }
 
+func TestParseGlobalArgsHelp(t *testing.T) {
+	opts, err := parseGlobalArgs([]string{"--help"})
+	if err != nil {
+		t.Fatalf("parseGlobalArgs() error = %v", err)
+	}
+	if !opts.help {
+		t.Fatalf("expected help=true")
+	}
+}
+
+func TestCommandWantsHelp(t *testing.T) {
+	if !commandWantsHelp([]string{"https://example.com", "-h"}) {
+		t.Fatalf("expected command help")
+	}
+	if commandWantsHelp([]string{"https://example.com"}) {
+		t.Fatalf("did not expect command help")
+	}
+}
+
+func TestMainHelpHidesDeveloperCommands(t *testing.T) {
+	var buf bytes.Buffer
+	printMainHelp(&buf)
+	out := buf.String()
+	if !strings.Contains(out, "rip help [command]") || !strings.Contains(out, "Commands:") {
+		t.Fatalf("main help missing expected text: %s", out)
+	}
+	if strings.Contains(out, "dev-help") || strings.Contains(out, "smoke") {
+		t.Fatalf("main help should hide developer commands: %s", out)
+	}
+}
+
+func TestCommandHelpURL(t *testing.T) {
+	var buf bytes.Buffer
+	if !printCommandHelp(&buf, "url") {
+		t.Fatalf("expected url help")
+	}
+	out := buf.String()
+	if !strings.Contains(out, "rip url <url...>") || !strings.Contains(out, "--ignore-db") {
+		t.Fatalf("url help missing expected text: %s", out)
+	}
+}
+
+func TestPrintCommandHelpRejectsUnknown(t *testing.T) {
+	var buf bytes.Buffer
+	if printCommandHelp(&buf, "nope") {
+		t.Fatalf("unexpected help for unknown command")
+	}
+	if buf.Len() != 0 {
+		t.Fatalf("unexpected output for unknown command: %s", buf.String())
+	}
+}
+
 func TestParseGlobalArgsAllOfficialFlags(t *testing.T) {
 	opts, err := parseGlobalArgs([]string{
 		"--config-path", "/tmp/custom.toml",