add role diff (#26)

cmd/roles.go

@@ -34,6 +34,7 @@ func Roles(conf *cfg.Config) *cli.Command {
 		Commands: []*cli.Command{
 			RoleList(conf),
 			RoleShow(conf),
+			RoleDiff(conf),
 		},
 	}
 }
@@ -76,3 +77,61 @@ func RoleShow(conf *cfg.Config) *cli.Command {
 		},
 	}
 }
+
+func RoleDiff(conf *cfg.Config) *cli.Command {
+	return &cli.Command{
+		Name:  "diff",
+		Usage: "show differences between roles and CSV baseline",
+		UsageText: `diff [options] <file.csv> [<role>]
+CSV format:
+index_name;role;index_privilege;cluster_privilege;ad_group;space;retention;kibana_privilege;field_privilege`,
+
+		MutuallyExclusiveFlags: []cli.MutuallyExclusiveFlags{{
+			Flags: [][]cli.Flag{
+				{
+					&cli.BoolFlag{
+						Name:        "not-deployed",
+						Usage:       "include only not deployed but defined roles",
+						Destination: &conf.NotDeployed,
+						Aliases:     []string{"n"},
+					},
+				},
+				{
+					&cli.BoolFlag{
+						Name:        "undefined",
+						Usage:       "include only deployed but undefined roles",
+						Destination: &conf.Undefined,
+						Aliases:     []string{"u"},
+					},
+				},
+				{
+					&cli.BoolFlag{
+						Name:        "diff",
+						Usage:       "include only differing roles",
+						Destination: &conf.Diff,
+						Aliases:     []string{"D"},
+					},
+				},
+			}},
+		},
+
+		Flags: []cli.Flag{
+			&cli.StringFlag{
+				Name:        "separator",
+				Usage:       "CSV field separator",
+				Destination: &conf.Separator,
+				Aliases:     []string{"s"},
+				Value:       ",",
+			},
+		},
+
+		Action: func(ctx context.Context, cmd *cli.Command) error {
+			csvfile := cmd.Args().Get(0)
+			if csvfile == "" {
+				return errors.New("no CSV file specified")
+			}
+
+			return es.RoleDiff(conf, cmd.Args().Get(0), cmd.Args().Get(1))
+		},
+	}
+}