Use set -e to fail bash commands immediately

Author: binarymason

command.go

@@ -7,7 +7,7 @@ import (
 )
 
 func runCommand(command string) (out []byte, err error) {
-	out, err = exec.Command("bash", "-c", command).CombinedOutput()
+	out, err = exec.Command("bash", "-ce", command).CombinedOutput()
 
 	if err != nil {
 		return out, errors.Wrap(err, string(out))

command_test.go

@@ -19,6 +19,20 @@ echo baz
 	Assert(string(out), "foo\nbar\nbaz\n", t)
 }
 
+func TestBashSetE(t *testing.T) {
+	command := `
+echo "first"
+BOOM
+echo "second"
+  `
+	out, err := runCommand(command)
+
+	if err == nil {
+		t.Error("expected an error but received none")
+	}
+	Assert(string(out), "first\nbash: line 2: BOOM: command not found\n", t)
+}
+
 func TestFailingCommand(t *testing.T) {
 	out, err := runCommand("echo 'BOOM!' && exit 1")