Add Semantic Versioining checks

CHANGELOG.md

@@ -4,10 +4,15 @@ All notable changes to [ChaiLove](https://github.com/RobLoach/ChaiLove) will be
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
-## 0.17.1 - Unreleased
+## 0.18.0 - Unreleased
+### Added
+- [Semantic Versioning](https://semver.org/) checks
+  - Use `t.version = 0.18.0` in `def load(t) {}` to specify which ChaiLove version you're targeting
+
 ### Fixed
 - Documentation
 
+
 ## 0.17.0 - 2018-03-18
 ### Added
 - `love.system.getOS()` now returns actual operating system name

Makefile.common

@@ -9,6 +9,10 @@ SOURCES_CXX += $(wildcard \
 	test/native/*.cpp \
 )
 
+# semver
+FLAGS += -Ivendor/semver
+SOURCES_C += vendor/semver/semver.c
+
 # random
 FLAGS += -Ivendor/random/include
 

docs/Doxyfile

@@ -23,7 +23,7 @@ PROJECT_NAME           = "ChaiLove API"
 # This could be handy for archiving the generated documentation or
 # if some version control system is used.
 
-PROJECT_NUMBER         = "0.17.0"
+PROJECT_NUMBER         = "0.18.0"
 
 # The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute)
 # base path where the generated documentation will be put.

src/ChaiLove.cpp

@@ -45,6 +45,7 @@ bool ChaiLove::load(const std::string& file) {
 	// Initialize the scripting system.
 	script = new love::script(file);
 	script->conf(config);
+	system.load(config);
 
 	// Testing.
 	#ifdef __HAVE_TESTS__

src/ChaiLove.h

@@ -71,9 +71,9 @@
 #define SRC_CHAILOVE_H_
 
 #define CHAILOVE_VERSION_MAJOR 0
-#define CHAILOVE_VERSION_MINOR 17
+#define CHAILOVE_VERSION_MINOR 18
 #define CHAILOVE_VERSION_PATCH 0
-#define CHAILOVE_VERSION_STRING "0.17.0"
+#define CHAILOVE_VERSION_STRING "0.18.0"
 
 #include "SDL.h"
 #include "libretro.h"

src/love/system.cpp

@@ -2,6 +2,8 @@
 #include "../ChaiLove.h"
 
 #include <string>
+#include <iostream>
+#include "semver.h"
 
 namespace love {
 
@@ -52,4 +54,41 @@ std::string system::getVersionString() {
 	return CHAILOVE_VERSION_STRING;
 }
 
+bool system::load(config& t) {
+	semver_t current = {};
+	semver_t compare = {};
+
+    if (semver_parse(getVersionString().c_str(), &current)
+		|| semver_parse(t.version.c_str(), &compare)) {
+		std::cout << "[ChaiLove] [system] Error - Invalid version string: " << t.version << std::endl;
+		return false;
+    }
+    std::cout << "[ChaiLove] [system] Version desired: " << t.version << std::endl;
+
+    int resolution = semver_compare(compare, current);
+    if (resolution == 0) {
+		std::cout << "[ChaiLove] [system] Version " << t.version << " == " << getVersionString() << std::endl;
+    } else if (resolution == -1) {
+		std::cout << "[ChaiLove] [system] Version " << t.version << " < " << getVersionString() << std::endl;
+    } else {
+		std::cout << "[ChaiLove] [system] Version " << t.version << " > " << getVersionString() << std::endl;
+    }
+
+    resolution = semver_satisfies(compare, current, "~");
+    if (resolution == 1) {
+    	std::cout << "[ChaiLove] [system] Version " << t.version << " ~= " << getVersionString() << std::endl;
+    } else {
+    	std::cout << "[ChaiLove] [system] Version " << t.version << " !~= " << getVersionString() << std::endl;
+    }
+
+    resolution = semver_satisfies(compare, current, "^");
+    if (resolution == 1) {
+    	std::cout << "[ChaiLove] [system] Version " << t.version << " ^= " << getVersionString() << std::endl;
+    } else {
+    	std::cout << "[ChaiLove] [system] Version " << t.version << " !^= " << getVersionString() << std::endl;
+    }
+
+    return true;
+}
+
 }  // namespace love

src/love/system.h

@@ -3,6 +3,7 @@
 
 #include <vector>
 #include <string>
+#include "config.h"
 
 namespace love {
 /**
@@ -34,6 +35,8 @@ class system {
 	 * @see love.system.getVersion
 	 */
 	std::string getVersionString();
+
+	bool load(config& t);
 };
 
 }  // namespace love