+// Create all directories on the given path that don't already exist.
+bool CreateAllDirs(std::string path);
+
+// Copy a regular file
+bool CopyFileContents(std::string source, std::string target);
+
+// Copy directory and all subdirectories
+// Omits files and subdirectories that start with a period
+bool CopyDir(std::string source, 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(std::string path, 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(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);
+
+bool safeWriteToFile(const std::string &path, const std::string &content);
+