add index fields filter flags (#27)

pkg/es/index.go

@@ -21,6 +21,7 @@ import (
 	"fmt"
 	"log/slog"
 	"regexp"
+	"slices"
 	"strconv"
 	"strings"
 	"time"
@@ -311,17 +312,26 @@ func IndexFields(conf *cfg.Config, index string) error {
 		return fmt.Errorf("failed to retrieve field capabilties: %s", esErrorString(err))
 	}
 
-	table := printer.NewTable(conf, 5, len(res.Fields))
+	table := printer.NewTable(conf, 5, 0)
 	table.Addheaders("field", "type", "searchable", "aggretable", "metadata")
 
 	idx := 0
 	for name, field := range res.Fields {
 		for fieldtype, caps := range field {
 			// fields only have 1 type, so this one is it
-			table.Entries[idx] = []string{name, fieldtype,
+			switch {
+			case conf.Searchable && !caps.Searchable:
+				continue
+			case conf.Aggretable && !caps.Aggregatable:
+				continue
+			case len(conf.Filter) > 0 && !slices.Contains(conf.Filter, fieldtype):
+				continue
+			}
+
+			table.Entries = append(table.Entries, []string{name, fieldtype,
 				fmt.Sprintf("%t", caps.Searchable),
 				fmt.Sprintf("%t", caps.Aggregatable),
-				fmt.Sprintf("%t", *caps.MetadataField)}
+				fmt.Sprintf("%t", *caps.MetadataField)})
 			break
 		}