From 8ea6eb1cc335afeb4eae129d92d77d261e7173d0 Mon Sep 17 00:00:00 2001
From: Brad Rydzewski <brad.rydzewski@gmail.com>
Date: Thu, 30 May 2019 08:14:47 -0700
Subject: [PATCH] fix for issue #42

---
 CHANGELOG.md  | 6 ++++++
 yaml/parse.go | 6 ++++++
 2 files changed, 12 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index c8adcf7..3e432b6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,10 +5,16 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+### Added
+
+### Fixed
+
+## [1.1.0] - 2019-05-30
 ### Fixed
 - Support for yaml merge keys, by [@bradrydzewski](https://github.com/bradrydzewski).
 - Improve how colon characters are escaped, by [@bradrydzewski](https://github.com/bradrydzewski). Issue [#45](https://github.com/drone/drone-yaml/issues/45).
 - Improve how pipe and caret characters are escaped, by [@bradrydzewski](https://github.com/bradrydzewski). Issue [#44](https://github.com/drone/drone-yaml/issues/44).
+- Error when empty document or missing kind attribute, by [@bradrydzewski](https://github.com/bradrydzewski). Issue [#42](https://github.com/drone/drone-yaml/issues/42).
 
 ## [1.0.9] - 2019-05-20
 ### Added
diff --git a/yaml/parse.go b/yaml/parse.go
index 82ff09a..522ff79 100644
--- a/yaml/parse.go
+++ b/yaml/parse.go
@@ -17,6 +17,7 @@ package yaml
 import (
 	"bufio"
 	"bytes"
+	"errors"
 	"io"
 	"os"
 	"strings"
@@ -24,6 +25,8 @@ import (
 	"github.com/buildkite/yaml"
 )
 
+var errorMissingKind = errors.New("yaml: missing kind attribute")
+
 // Parse parses the configuration from io.Reader r.
 func Parse(r io.Reader) (*Manifest, error) {
 	resources, err := ParseRaw(r)
@@ -39,6 +42,9 @@ func Parse(r io.Reader) (*Manifest, error) {
 		if err != nil {
 			return nil, err
 		}
+		if resource.GetKind() == "" {
+			return nil, errorMissingKind
+		}
 		manifest.Resources = append(
 			manifest.Resources,
 			resource,