Added the parse option to yamltool because it gives much better error messages than yuamllint and yq.

cmd/yamltool/parse.go

@@ -2,7 +2,11 @@ package main
 
 import (
 	"bytes"
+	"fmt"
+
 	"github.com/goccy/go-yaml"
+	"github.com/spf13/cobra"
+
 	"os"
 )
 
@@ -24,3 +28,13 @@ func parse(data []byte) (yaml.MapSlice, error) {
 	}
 	return result, nil
 }
+
+func parseFiles(cmd *cobra.Command, args []string) error {
+	for _, arg := range args {
+		_, err := parse(read(arg))
+		if err != nil {
+			fmt.Printf("%s: %v\n", arg, err.Error())
+		}
+	}
+	return nil
+}

cmd/yamltool/yamltool.go

@@ -57,6 +57,16 @@ Shows the additions and modifications in <file2> compared to <file1>`,
 	}
 	cmd.AddCommand(merge)
 
+	parse := &cobra.Command{
+		Use:   "parse [file1] ... [fileN]",
+		Short: "Parse yaml files.",
+		Long:  `Parse yaml files, usually gives better error messages than yamllint or yq`,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			return parseFiles(cmd, args)
+		},
+	}
+	cmd.AddCommand(parse)
+
 	diff.PersistentFlags().IntVarP(&VERBOSITY, "array-output-level",
 		"v", 3, `Array output level: ,
 	0: no output, only exit status,

go.mod

@@ -1,6 +1,6 @@
 module git.wamblee.org/public/gotools
 
-go 1.23.4
+go 1.24.7
 
 require (
 	github.com/goccy/go-yaml v1.15.13