+// Copy a regular file
+bool CopyFileContents(const std::string &source, const std::string &target);
+
+// Copy directory and all subdirectories
+// Omits files and subdirectories that start with a period
+bool CopyDir(const std::string &source, const std::string &target);
+
+// Check if one path is prefix of another
+// For example, "/tmp" is a prefix of "/tmp" and "/tmp/file" but not "/tmp2"
+// Ignores case differences and '/' vs. '\\' on Windows
+bool PathStartsWith(const std::string &path, const std::string &prefix);
+
+// Remove last path component and the dir delimiter before and/or after it,
+// returns "" if there is only one path component.
+// removed: If non-NULL, receives the removed component(s).
+// count: Number of components to remove
+std::string RemoveLastPathComponent(const std::string &path,
+ std::string *removed = NULL, int count = 1);
+
+// Remove "." and ".." path components and for every ".." removed, remove
+// the last normal path component before it. Unlike AbsolutePath,
+// this does not resolve symlinks and check for existence of directories.
+std::string RemoveRelativePathComponents(std::string path);
+
+// Returns the absolute path for the passed path, with "." and ".." path
+// components and symlinks removed. Returns "" on error.
+std::string AbsolutePath(const std::string &path);
+
+// Returns the filename from a path or the entire path if no directory
+// delimiter is found.
+const char *GetFilenameFromPath(const char *path);
+
+bool safeWriteToFile(const std::string &path, const std::string &content);
+
+bool Rename(const std::string &from, const std::string &to);