add syntax highlighting for output

fixes itaysk#39

cmd/cmd.go

@@ -23,16 +23,19 @@ import (
 	"os/exec"
 	"unicode"
 
+	"github.com/andreazorzetto/yh/highlight"
 	"github.com/ghodss/yaml"
 	"github.com/spf13/cobra"
 )
 
 var outputFormat *string
 var inputFile *string
+var color *bool
 
 func init() {
 	outputFormat = rootCmd.PersistentFlags().StringP("output", "o", "yaml", "output format: yaml or json")
 	inputFile = rootCmd.Flags().StringP("file", "f", "-", "file path to neat, or - to read from stdin")
+	color = rootCmd.Flags().BoolP("color", "c", false, "colored output with syntax highlighting")
 	rootCmd.SetOut(os.Stdout)
 	rootCmd.SetErr(os.Stderr)
 	rootCmd.MarkFlagFilename("file")
@@ -74,7 +77,16 @@ kubectl neat -f ./my-pod.json --output yaml`,
 		if err != nil {
 			return err
 		}
-		cmd.Println(string(out))
+		if *color {
+			outreader := bytes.NewReader(out)
+			highlightedOutput, err := highlight.Highlight(outreader)
+			if err != nil {
+				return err
+			}
+			cmd.Println(highlightedOutput)
+		} else {
+			cmd.Println(string(out))
+		}
 		return nil
 	},
 }

go.mod

@@ -12,6 +12,7 @@ require (
 	k8s.io/apimachinery v0.17.0
 	k8s.io/client-go v0.17.0
 	k8s.io/kubernetes v1.17.0
+	github.com/andreazorzetto/yh v0.4.0
 )
 
 replace (

go.sum

@@ -33,6 +33,8 @@ github.com/StackExchange/wmi v0.0.0-20180116203802-5d049714c4a6/go.mod h1:3eOhrU
 github.com/agnivade/levenshtein v1.0.1/go.mod h1:CURSv5d9Uaml+FovSIICkLbAUZ9S4RqaHDIsdSBg7lM=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
+github.com/andreazorzetto/yh v0.4.0 h1:kXQJxhT7v9/JqUNifD+yIBRLKXDWeBgO2/UjxwRQsto=
+github.com/andreazorzetto/yh v0.4.0/go.mod h1:c7MhXod3cApIEJDb9VSXA9cZVVaEZbvW+GhMPiVg2tM=
 github.com/andreyvit/diff v0.0.0-20170406064948-c7f18ee00883/go.mod h1:rCTlJbsFo29Kk6CurOXKm700vrz8f0KW0JNfpkRJY/8=
 github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239/go.mod h1:2FmKhYUyUczH0OGQWaF5ceTx0UBShxjsH6f8oGKYe2c=
 github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e/go.mod h1:3U/XgcO3hCbHZ8TKRvWD2dDTCfh9M9ya+I9JpbB7O8o=
@@ -297,6 +299,8 @@ github.com/libopenstorage/openstorage v1.0.0/go.mod h1:Sp1sIObHjat1BeXhfMqLZ14wn
 github.com/liggitt/tabwriter v0.0.0-20181228230101-89fcab3d43de/go.mod h1:zAbeS9B/r2mtpb6U+EI2rYA5OAXxsYw6wTamcNW+zcE=
 github.com/lithammer/dedent v1.1.0/go.mod h1:jrXYCQtgg0nJiN+StA2KgR7w6CiQNv9Fd/Z9BP0jIOc=
 github.com/logrusorgru/aurora v0.0.0-20181002194514-a7b3b318ed4e/go.mod h1:7rIyQOR62GCctdiQpZ/zOJlFyk6y+94wXzv6RNZgaR4=
+github.com/logrusorgru/aurora v2.0.3+incompatible h1:tOpm7WcpBTn4fjmVfgpQq0EfczGlG91VSDkswnjF5A8=
+github.com/logrusorgru/aurora v2.0.3+incompatible/go.mod h1:7rIyQOR62GCctdiQpZ/zOJlFyk6y+94wXzv6RNZgaR4=
 github.com/lpabon/godbc v0.1.1/go.mod h1:Jo9QV0cf3U6jZABgiJ2skINAXb9j8m51r07g4KI92ZA=
 github.com/lucas-clemente/aes12 v0.0.0-20171027163421-cd47fb39b79f/go.mod h1:JpH9J1c9oX6otFSgdUHwUBUizmKlrMjxWnIAjff4m04=
 github.com/lucas-clemente/quic-clients v0.1.0/go.mod h1:y5xVIEoObKqULIKivu+gD/LU90pL73bTdtQjPBvtCBk=