Add a sample post-hook-command for osx notifications

eg. --post-run-command 'go run scripts/notify_example.go'

go.mod

@@ -19,3 +19,5 @@ require (
 	gopkg.in/gemnasium/logrus-airbrake-hook.v2 v2.1.2 // indirect
 	gotest.tools v2.1.0+incompatible
 )
+
+go 1.13

handler.go

@@ -92,11 +92,12 @@ func writeJUnitFile(opts *options, execution *testjson.Execution) error {
 }
 
 func postRunHook(opts *options, execution *testjson.Execution) error {
-	if len(opts.postRunHookCmd) == 0 {
+	if opts.postRunHookCmd == "" {
 		return nil
 	}
 
-	cmd := exec.Command(opts.postRunHookCmd[0], opts.postRunHookCmd[1:]...)
+	// TODO: windows?
+	cmd := exec.Command("/bin/sh", "-c", opts.postRunHookCmd)
 	cmd.Stdout = os.Stdout
 	cmd.Stderr = os.Stderr
 	cmd.Env = append(

main.go

@@ -92,8 +92,8 @@ Formats:
 		"format the testsuite name field as: "+junitFieldFormatValues)
 	flags.Var(opts.junitTestCaseClassnameFormat, "junitfile-testcase-classname",
 		"format the testcase classname field as: "+junitFieldFormatValues)
-	flags.StringSliceVar(&opts.postRunHookCmd, "post-run-command",
-		nil, "run this command once the tests have completed")
+	flags.StringVar(&opts.postRunHookCmd, "post-run-command",
+		"", "run this command once the tests have completed")
 	flags.BoolVar(&opts.version, "version", false, "show version and exit")
 	return flags, opts
 }
@@ -112,7 +112,7 @@ type options struct {
 	rawCommand                   bool
 	jsonFile                     string
 	junitFile                    string
-	postRunHookCmd               []string
+	postRunHookCmd               string
 	noColor                      bool
 	noSummary                    *noSummaryValue
 	junitTestSuiteNameFormat     *junitFieldFormatValue

scripts/notify_example.go

@@ -0,0 +1,60 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"os/exec"
+	"strconv"
+)
+
+func main() {
+	total := envInt("TOTAL")
+	skipped := envInt("SKIPPED")
+	failed := envInt("FAILED")
+	errors := envInt("ERRORS")
+
+	emoji := "✅"
+	title := "Passed"
+	switch {
+	case errors > 0:
+		emoji = "⚠️"
+		title = "Errored"
+	case failed > 0:
+		emoji = "❌"
+		title = "Failed"
+	case skipped > 0:
+		title = "Passed with skipped"
+	}
+
+	subtitle := fmt.Sprintf("%d Tests Run", total)
+	if errors > 0 {
+		subtitle += fmt.Sprintf(", %d Errored", errors)
+	}
+	if failed > 0 {
+		subtitle += fmt.Sprintf(", %d Failed", failed)
+	}
+	if skipped > 0 {
+		subtitle += fmt.Sprintf(", %d Skipped", skipped)
+	}
+
+	args := []string{
+		"-title", emoji + " " + title,
+		"-group", "gotestsum",
+		"-subtitle", subtitle,
+	}
+	log.Printf("terminal-notifier %#v", args)
+	err := exec.Command("terminal-notifier", args...).Run()
+	if err != nil {
+		log.Fatalf("Failed to exec: %v", err)
+	}
+}
+
+func envInt(name string) int {
+	val := os.Getenv("TESTS_" + name)
+	n, err := strconv.Atoi(val)
+	if err != nil {
+		return 0
+	}
+	return n
+}