From cdc906085a8c30442542ffcf7cd7a48437979c54 Mon Sep 17 00:00:00 2001
From: Sam Kellett <samkellett@gmail.com>
Date: Wed, 30 Dec 2015 19:01:37 +0000
Subject: [PATCH] Added version.h that is prepopulated by cmake.

---
 .gitignore                    |  1 +
 CMakeLists.txt                |  2 ++
 include/yaml-cpp/version.h.in | 17 +++++++++++++++++
 test/version_test.cpp         | 27 +++++++++++++++++++++++++++
 4 files changed, 47 insertions(+)
 create mode 100644 include/yaml-cpp/version.h.in
 create mode 100644 test/version_test.cpp

diff --git a/.gitignore b/.gitignore
index 567609b..726b1a3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 build/
+include/yaml-cpp/version.h
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1897775..873d6b0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -116,6 +116,8 @@ include_directories(${YAML_CPP_SOURCE_DIR}/include)
 find_package(Boost REQUIRED)
 include_directories(${Boost_INCLUDE_DIRS})
 
+# Create version.h
+configure_file(${header_directory}/version.h.in ${CMAKE_SOURCE_DIR}/${header_directory}/version.h)
 
 ###
 ### General compilation settings
diff --git a/include/yaml-cpp/version.h.in b/include/yaml-cpp/version.h.in
new file mode 100644
index 0000000..1b60ebb
--- /dev/null
+++ b/include/yaml-cpp/version.h.in
@@ -0,0 +1,17 @@
+#ifndef YAML_CPP_VERSION_H
+#define YAML_CPP_VERSION_H
+
+#if defined(_MSC_VER) ||                                            \
+    (defined(__GNUC__) && (__GNUC__ == 3 && __GNUC_MINOR__ >= 4) || \
+     (__GNUC__ >= 4))  // GCC supports "pragma once" correctly since 3.4
+#pragma once
+#endif
+
+#define YAML_CPP_VERSION_MAJOR ${YAML_CPP_VERSION_MAJOR}
+#define YAML_CPP_VERSION_MINOR ${YAML_CPP_VERSION_MINOR}
+#define YAML_CPP_VERSION_PATCH ${YAML_CPP_VERSION_PATCH}
+
+// String representation of the current version (ie. "0.1.2")
+#define YAML_CPP_VERSION "${YAML_CPP_VERSION}"
+
+#endif  // YAML_CPP_VERSION_H
diff --git a/test/version_test.cpp b/test/version_test.cpp
new file mode 100644
index 0000000..b55cc25
--- /dev/null
+++ b/test/version_test.cpp
@@ -0,0 +1,27 @@
+#include "yaml-cpp/version.h"
+
+#include "gtest/gtest.h"
+
+namespace YAML {
+namespace {
+TEST(VersionTest, Major)
+{
+  ASSERT_EQ(YAML_CPP_VERSION_MAJOR, 0);
+}
+
+TEST(VersionTest, Minor)
+{
+  ASSERT_EQ(YAML_CPP_VERSION_MINOR, 5);
+}
+
+TEST(VersionTest, Path)
+{
+  ASSERT_EQ(YAML_CPP_VERSION_PATCH, 2);
+}
+
+TEST(VersionTest, String)
+{
+  ASSERT_STREQ(YAML_CPP_VERSION, "0.5.2");
+}
+}
+}