diff options
Diffstat (limited to 'modules/mono/utils/path_utils.cpp')
| -rw-r--r-- | modules/mono/utils/path_utils.cpp | 41 |
1 files changed, 39 insertions, 2 deletions
diff --git a/modules/mono/utils/path_utils.cpp b/modules/mono/utils/path_utils.cpp index 20863b1afe..545da6c79e 100644 --- a/modules/mono/utils/path_utils.cpp +++ b/modules/mono/utils/path_utils.cpp @@ -5,8 +5,8 @@ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ -/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur. */ -/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md) */ +/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */ /* */ /* Permission is hereby granted, free of charge, to any person obtaining */ /* a copy of this software and associated documentation files (the */ @@ -170,4 +170,41 @@ String join(const String &p_a, const String &p_b, const String &p_c, const Strin return path::join(path::join(path::join(p_a, p_b), p_c), p_d); } +String relative_to_impl(const String &p_path, const String &p_relative_to) { + // This function assumes arguments are normalized and absolute paths + + if (p_path.begins_with(p_relative_to)) { + return p_path.substr(p_relative_to.length() + 1); + } else { + String base_dir = p_relative_to.get_base_dir(); + + if (base_dir.length() <= 2 && (base_dir.empty() || base_dir.ends_with(":"))) + return p_path; + + return String("..").plus_file(relative_to_impl(p_path, base_dir)); + } +} + +#ifdef WINDOWS_ENABLED +String get_drive_letter(const String &p_norm_path) { + int idx = p_norm_path.find(":/"); + if (idx != -1 && idx < p_norm_path.find("/")) + return p_norm_path.substr(0, idx + 1); + return String(); +} +#endif + +String relative_to(const String &p_path, const String &p_relative_to) { + String relative_to_abs_norm = abspath(p_relative_to); + String path_abs_norm = abspath(p_path); + +#ifdef WINDOWS_ENABLED + if (get_drive_letter(relative_to_abs_norm) != get_drive_letter(path_abs_norm)) { + return path_abs_norm; + } +#endif + + return relative_to_impl(path_abs_norm, relative_to_abs_norm); +} + } // namespace path |