fix #93 crash index template, check nil ptr

cmd/completion.go

@@ -34,7 +34,6 @@ const (
 	Cilm
 	Cnode
 	Cclustersettings
-	Cindextemplate
 )
 
 func complete(conf *cfg.Config, cmd *cli.Command, what int) {
@@ -66,8 +65,6 @@ func complete(conf *cfg.Config, cmd *cli.Command, what int) {
 		list, err = es.NodeNames(conf)
 	case Cclustersettings:
 		list, err = es.ClusterSettingsNames(conf)
-	case Cindextemplate:
-		list, err = es.IndexTemplateNames(conf)
 	}
 
 	if err != nil {

cmd/index_template.go

@@ -49,23 +49,8 @@ func IndexTemplateList(conf *cfg.Config) *cli.Command {
 		Aliases: []string{"ls"},
 		Usage:   "list index templates",
 
-		Flags: []cli.Flag{
-			&cli.StringSliceFlag{
-				Name:        "filter-index-pattern",
-				Usage:       "show only index templates which use patterns, which match the filter",
-				Destination: &conf.Filter,
-				Aliases:     []string{"F"},
-			},
-			&cli.BoolFlag{
-				Name:        "hidden",
-				Usage:       "show hidden index templates as well",
-				Destination: &conf.Hidden,
-				Aliases:     []string{"H"},
-			},
-		},
-
 		Action: func(ctx context.Context, cmd *cli.Command) error {
-			return es.IndexTemplateList(conf, cmd.Args().Get(0))
+			return es.IndexTemplateList(conf)
 		},
 	}
 }
@@ -86,7 +71,7 @@ func IndexTemplateShow(conf *cfg.Config) *cli.Command {
 		},
 
 		ShellComplete: func(ctx context.Context, cmd *cli.Command) {
-			complete(conf, cmd, Cindextemplate)
+			complete(conf, cmd, Cindex)
 		},
 	}
 }
@@ -230,7 +215,7 @@ func IndexTemplateDelete(conf *cfg.Config) *cli.Command {
 		},
 
 		ShellComplete: func(ctx context.Context, cmd *cli.Command) {
-			complete(conf, cmd, Cindextemplate)
+			complete(conf, cmd, Cindex)
 		},
 	}
 }

pkg/es/index_template.go

@@ -33,23 +33,7 @@ import (
 )
 
 // used for completion
-func IndexTemplateNames(conf *cfg.Config) ([]string, error) {
+func IndexTemplateList(conf *cfg.Config) error {
-	res, err := conf.DefaultCluster.ES().Indices.GetIndexTemplate().
-		Do(context.Background())
-	if err != nil {
-		return nil, fmt.Errorf("failed to get index templates: %w", esErrorString(err))
-	}
-
-	names := make([]string, len(res.IndexTemplates))
-
-	for idx, tpl := range res.IndexTemplates {
-		names[idx] = tpl.Name
-	}
-
-	return names, nil
-}
-
-func IndexTemplateList(conf *cfg.Config, filter string) error {
 	res, err := conf.DefaultCluster.ES().Indices.GetIndexTemplate().
 		Do(context.Background())
 	if err != nil {
@@ -58,42 +42,20 @@ func IndexTemplateList(conf *cfg.Config, filter string) error {
 
 	slog.Debug("res", "index templates", res)
 
-	table := printer.NewTable(conf, 5, 0)
+	table := printer.NewTable(conf, 5, len(res.IndexTemplates))
-	table.Addheaders("name", "description", "index patterns", "priority")
+	table.Addheaders("name", "description", "priority")
 
-	for _, tpl := range res.IndexTemplates {
+	for idx, tpl := range res.IndexTemplates {
-		if !conf.Hidden && strings.HasPrefix(tpl.Name, ".") {
+		desc, err := json.Marshal(tpl.IndexTemplate.Meta_["description"])
-			continue
+		if err != nil {
+			return fmt.Errorf("failed to unmarshal meta json data: %w", err)
 		}
 
-		if filter != "" && !strings.Contains(tpl.Name, filter) {
-			continue
-		}
-
-		if len(conf.Filter) > 0 {
-			skip := true
-
-			for _, filter := range conf.Filter {
-				for _, pattern := range tpl.IndexTemplate.IndexPatterns {
-					if strings.Contains(pattern, filter) {
-						skip = false
-					}
-				}
-			}
-
-			if skip {
-				continue
-			}
-		}
-
-		desc := strings.TrimPrefix(strings.TrimSuffix(string(tpl.IndexTemplate.Meta_["description"]), `"`), `"`)
-
 		var prio int64
 		if tpl.IndexTemplate.Priority != nil {
 			prio = *tpl.IndexTemplate.Priority
 		}
-
+		table.Entries[idx] = []any{tpl.Name, desc, prio}
-		table.AddRow(tpl.Name, desc, tpl.IndexTemplate.IndexPatterns, prio)
 	}
 
 	table.Sort()

pkg/printer/metrics.go

@@ -1,55 +0,0 @@
-/*
-Copyright © 2026 Thomas von Dein
-
-This program is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
-package printer
-
-import (
-	"fmt"
-	"runtime/metrics"
-	"strconv"
-)
-
-func printGoRoutineMetrics() {
-	fmt.Println("\nGoroutine metrics:")
-	printMetric("/sched/goroutines-created:goroutines", "Created")
-	printMetric("/sched/goroutines:goroutines", "Live")
-	printMetric("/sched/goroutines/not-in-go:goroutines", "Syscall/CGO")
-	printMetric("/sched/goroutines/runnable:goroutines", "Runnable")
-	printMetric("/sched/goroutines/running:goroutines", "Running")
-	printMetric("/sched/goroutines/waiting:goroutines", "Waiting")
-
-	fmt.Println("Thread metrics:")
-	printMetric("/sched/gomaxprocs:threads", "Max")
-	printMetric("/sched/threads/total:threads", "Live")
-}
-
-func printMetric(name string, descr string) {
-	sample := []metrics.Sample{{Name: name}}
-	metrics.Read(sample)
-
-	var val string
-
-	switch sample[0].Value.Kind() {
-	case metrics.KindFloat64, metrics.KindFloat64Histogram:
-		val = fmt.Sprintf("%.2f", sample[0].Value.Float64())
-	case metrics.KindUint64:
-		val = strconv.FormatUint(sample[0].Value.Uint64(), 10)
-	case metrics.KindBad:
-		val = "n/a"
-	}
-
-	fmt.Printf("  %s: %v\n", descr, val)
-}