add ONLY_MATCH_EMAIL boolean flag

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>

main.go

@@ -77,6 +77,11 @@ func main() {
 			Usage:  "enable debug message",
 			EnvVar: "PLUGIN_DEBUG",
 		},
+		cli.BoolFlag{
+			Name:   "match.email",
+			Usage:  "send message when only match email",
+			EnvVar: "PLUGIN_ONLY_MATCH_EMAIL",
+		},
 		cli.StringFlag{
 			Name:   "format",
 			Value:  "markdown",
@@ -177,6 +182,7 @@ func run(c *cli.Context) error {
 		Config: Config{
 			Token:      c.String("token"),
 			Debug:      c.Bool("debug"),
+			MatchEmail: c.Bool("match.email"),
 			To:         c.StringSlice("to"),
 			Message:    c.StringSlice("message"),
 			Photo:      c.StringSlice("photo"),

plugin.go

@@ -38,6 +38,7 @@ type (
 	Config struct {
 		Token      string
 		Debug      bool
+		MatchEmail bool
 		To         []string
 		Message    []string
 		Photo      []string