add some methods to Poco::Path for make it easy to follow XDG Base Directory Specification

Foundation/include/Poco/Path.h

@@ -301,6 +301,11 @@ public:
 		/// On Unix systems, this is the '~/.local/share/'. On Windows systems,
 		/// this is '%APPDATA%'.
 
+	static std::string tempHome();
+		/// Returns the user's temp directory.
+		///
+		/// On Unix systems, this is the '~/.local/temp/'.
+
 	static std::string cacheHome();
 		/// Returns the user's cache directory.
 		///
@@ -310,6 +315,11 @@ public:
 	static std::string temp();
 		/// Returns the temporary directory.
 		
+	static std::string config();
+		/// Returns the systemwide config directory.
+		///
+		/// On Unix systems, this is the '/etc/'.
+		
 	static std::string null();
 		/// Returns the name of the null device.
 		

Foundation/include/Poco/Path_UNIX.h

@@ -32,8 +32,10 @@ public:
 	static std::string homeImpl();
 	static std::string configHomeImpl();
 	static std::string dataHomeImpl();
+	static std::string tempHomeImpl();
 	static std::string cacheHomeImpl();
 	static std::string tempImpl();
+	static std::string configImpl();
 	static std::string nullImpl();
 	static std::string expandImpl(const std::string& path);
 	static void listRootsImpl(std::vector<std::string>& roots);

Foundation/src/Path.cpp

@@ -569,9 +569,39 @@ std::string Path::home()
 }
 
 
+std::string Path::configHome()
+{
+#if defined(POCO_OS_FAMILY_UNIX)
+	return PathImpl::configHomeImpl();
+#else
+	return PathImpl::homeImpl();
+#endif
+}
+
+	
+std::string Path::dataHome()
+{
+#if defined(POCO_OS_FAMILY_UNIX)
+	return PathImpl::dataHomeImpl();
+#else
+	return PathImpl::homeImpl();
+#endif
+}
+
+	
+std::string Path::tempHome()
+{
+#if defined(POCO_OS_FAMILY_UNIX)
+	return PathImpl::tempHomeImpl();
+#else
+	return PathImpl::tempImpl();
+#endif
+}
+
+	
 std::string Path::cacheHome()
 {
-#if defined(POCO_OS_FAMILY_UNIX) || defined(POCO_OS_FAMILY_WINDOWS)
+#if defined(POCO_OS_FAMILY_UNIX)
 	return PathImpl::cacheHomeImpl();
 #else
 	return PathImpl::homeImpl();
@@ -585,6 +615,15 @@ std::string Path::temp()
 }
 
 
+std::string Path::config()
+{
+#if defined(POCO_OS_FAMILY_UNIX)
+	return PathImpl::configImpl();
+#else
+	return PathImpl::currentImpl();
+#endif
+}
+
 std::string Path::null()
 {
 	return PathImpl::nullImpl();

Foundation/src/Path_UNIX.cpp

@@ -78,24 +78,10 @@ std::string PathImpl::configHomeImpl()
 {
 #if defined(POCO_VXWORKS)
 	return PathImpl::homeImpl();
-#elif POCO_OS == POCO_OS_MAC_OS_X
+#else
 	std::string path = PathImpl::homeImpl();
 	std::string::size_type n = path.size();
-	if (n > 0 && path[n - 1] == '/') 
+	if (n > 0 && path[n - 1] == '/') path.append(".config/");
-		path.append("Library/Preferences/");
-	return path;
-#else
-	std::string path;
-	if (EnvironmentImpl::hasImpl("XDG_CONFIG_HOME"))
-		path = EnvironmentImpl::getImpl("XDG_CONFIG_HOME");
-	if (!path.empty())
-		return path;
-
-	path = PathImpl::homeImpl();
-	std::string::size_type n = path.size();
-	if (n > 0 && path[n - 1] == '/')
-		path.append(".config/");
-
 	return path;
 #endif
 }
@@ -105,24 +91,10 @@ std::string PathImpl::dataHomeImpl()
 {
 #if defined(POCO_VXWORKS)
 	return PathImpl::homeImpl();
-#elif POCO_OS == POCO_OS_MAC_OS_X
+#else
 	std::string path = PathImpl::homeImpl();
 	std::string::size_type n = path.size();
-	if (n > 0 && path[n - 1] == '/') 
+	if (n > 0 && path[n - 1] == '/') path.append(".local/share/");
-		path.append("Library/Application Support/");
-	return path;
-#else
-	std::string path;
-	if (EnvironmentImpl::hasImpl("XDG_DATA_HOME"))
-		path = EnvironmentImpl::getImpl("XDG_DATA_HOME");
-	if (!path.empty())
-		return path;
-
-	path = PathImpl::homeImpl();
-	std::string::size_type n = path.size();
-	if (n > 0 && path[n - 1] == '/')
-		path.append(".local/share/");
-
 	return path;
 #endif
 }
@@ -132,24 +104,23 @@ std::string PathImpl::cacheHomeImpl()
 {
 #if defined(POCO_VXWORKS)
 	return PathImpl::tempImpl();
-#elif POCO_OS == POCO_OS_MAC_OS_X
+#else
 	std::string path = PathImpl::homeImpl();
 	std::string::size_type n = path.size();
-	if (n > 0 && path[n - 1] == '/') 
+	if (n > 0 && path[n - 1] == '/') path.append(".cache/");
-		path.append("Library/Caches/");
 	return path;
+#endif
+}
+
+
+std::string PathImpl::tempHomeImpl()
+{
+#if defined(POCO_VXWORKS)
+	return PathImpl::tempImpl();
 #else
-	std::string path;
+	std::string path = PathImpl::homeImpl();
-	if (EnvironmentImpl::hasImpl("XDG_CACHE_HOME"))
-		path = EnvironmentImpl::getImpl("XDG_CACHE_HOME");
-	if (!path.empty())
-		return path;
-
-	path = PathImpl::homeImpl();
 	std::string::size_type n = path.size();
-	if (n > 0 && path[n - 1] == '/')
+	if (n > 0 && path[n - 1] == '/') path.append(".local/tmp/");
-		path.append(".cache/");
-
 	return path;
 #endif
 }
@@ -173,6 +144,14 @@ std::string PathImpl::tempImpl()
 }
 
 
+std::string PathImpl::configImpl()
+{
+	std::string path;
+	path = "/etc/";
+	return path;
+}
+
+
 std::string PathImpl::nullImpl()
 {
 #if defined(POCO_VXWORKS)

Util/include/Poco/Util/SystemConfiguration.h

@@ -80,7 +80,9 @@ private:
 	static const std::string CONFIGHOMEDIR;
 	static const std::string CACHEHOMEDIR;
 	static const std::string DATAHOMEDIR;
+	static const std::string TEMPHOMEDIR;
 	static const std::string TEMPDIR;
+	static const std::string CONFIGDIR;
 	static const std::string DATETIME;
 #if !defined(POCO_VXWORKS)
 	static const std::string PID;

Util/src/SystemConfiguration.cpp

@@ -24,6 +24,7 @@
 #endif
 #include "Poco/Exception.h"
 #include <cstdio>
+#include "../../Foundation/include/Poco/Path.h"
 
 
 using Poco::Environment;
@@ -44,7 +45,9 @@ const std::string SystemConfiguration::HOMEDIR        = "system.homeDir";
 const std::string SystemConfiguration::CONFIGHOMEDIR  = "system.configHomeDir";
 const std::string SystemConfiguration::CACHEHOMEDIR   = "system.cacheHomeDir";
 const std::string SystemConfiguration::DATAHOMEDIR    = "system.dataHomeDir";
+const std::string SystemConfiguration::TEMPHOMEDIR    = "system.tempHomeDir";
 const std::string SystemConfiguration::TEMPDIR        = "system.tempDir";
+const std::string SystemConfiguration::CONFIGDIR      = "system.configDir";
 const std::string SystemConfiguration::DATETIME       = "system.dateTime";
 #if !defined(POCO_VXWORKS)
 const std::string SystemConfiguration::PID            = "system.pid";
@@ -121,10 +124,19 @@ bool SystemConfiguration::getRaw(const std::string& key, std::string& value) con
 	{
 		value = Path::dataHome();
 	}
+
+	else if (key == TEMPHOMEDIR)
+	{
+		value = Path::tempHome();
+	}
 	else if (key == TEMPDIR)
 	{
 		value = Path::temp();
 	}
+	else if (key == CONFIGDIR)
+	{
+		value = Path::config();
+	}
 	else if (key == DATETIME)
 	{
 		value = Poco::DateTimeFormatter::format(Poco::DateTime(), Poco::DateTimeFormat::ISO8601_FORMAT);
@@ -169,7 +181,9 @@ void SystemConfiguration::enumerate(const std::string& key, Keys& range) const
 		range.push_back("configHomeDir");
 		range.push_back("cacheHomeDir");
 		range.push_back("dataHomeDir");
+		range.push_back("tempHomeDir");
 		range.push_back("tempDir");
+		range.push_back("configDir");
 		range.push_back("dateTime");
 #if !defined(POCO_VXWORKS)
 		range.push_back("pid");

Util/testsuite/src/SystemConfigurationTest.cpp

@@ -84,7 +84,7 @@ void SystemConfigurationTest::testKeys()
 #if defined(POCO_VXWORKS)
 	assert (keys.size() == 10);
 #else
-	assert (keys.size() == 11);
+	assert (keys.size() == 16);
 #endif
 	assert (std::find(keys.begin(), keys.end(), "osName") != keys.end());
 	assert (std::find(keys.begin(), keys.end(), "osVersion") != keys.end());