Add more detailed information to any file I/O errors and return true from FileOps::removeFile() if the file does not exist.

src/FileOps.cpp

@@ -19,6 +19,21 @@
 #include <libgen.h>
 #endif
 
+FileOps::IOException::IOException(const std::string& error)
+: m_errno(0)
+{
+	m_error = error;
+
+#ifdef PLATFORM_UNIX
+	m_errno = errno;
+
+	if (m_errno > 0)
+	{
+		m_error += " details: " + std::string(strerror(m_errno));
+	}
+#endif
+}
+
 FileOps::IOException::~IOException() throw ()
 {
 }
@@ -153,7 +168,10 @@ void FileOps::removeFile(const char* src) throw (IOException)
 #ifdef PLATFORM_UNIX
 	if (unlink(src) != 0)
 	{
-		throw IOException("Unable to remove file " + std::string(src));
+		if (errno != ENOENT)
+		{
+			throw IOException("Unable to remove file " + std::string(src));
+		}
 	}
 #else
 	throw IOException("not implemented");

src/FileOps.h

@@ -3,16 +3,15 @@
 #include <exception>
 #include <string>
 
+#include "StringUtils.h"
+
 class FileOps
 {
 	public:
 		class IOException : public std::exception
 		{
 			public:
-				IOException(const std::string& error)
+				IOException(const std::string& error);
-				: m_error(error)
-				{
-				}
 
 				virtual ~IOException() throw ();
 
@@ -23,6 +22,7 @@ class FileOps
 
 			private:
 				std::string m_error;
+				int m_errno;
 		};
 
 		static bool fileExists(const char* path) throw (IOException);