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forked from 0ad/0ad
0ad/source/ps
wraitii 4bb31f084e Make real directory paths on the VFS predictable.
Partial revert/fix of 2f19cf86d3 and 2567fee329.

Before this diff, it was possible for a mod containing a cache/ or a
config/ folder to get written to incorrectly.
The issue is VFS can map multiple directories to one 'virtual' path, for
reading mods. However, writing data is problematic: which path to
choose?
The only viable solution is to use a path relative to the highest
priority directory encountered in the VFS path, or write paths could be
'hijacked' by lower-priority mods.

This fixes these issues by:
- Adding a new lookup mode ('Real-path') that explicitly picks the real
path relative to the highest-priority subdirectory in the VFS Path.
- Preventing overwriting a real directory with a lower priority one in
general.
- Revert c0c8132dd4's GetRealPath change, re-introducing the function as
GetOriginalPath.

This also cleans up some duplication that led to empty mod folders in
the user mod path, and cleans up loading the 'user' mod.

Note that the new 'realpath' lookup can still be somewhat complex with
many mount points at various hierarchy levels, but it is at least
predictable/deterministic without having to be careful about populating
order.

Fixes #2553

Differential Revision: https://code.wildfiregames.com/D3217
This was SVN commit r25104.
2021-03-22 18:49:42 +00:00
..
GameSetup Make real directory paths on the VFS predictable. 2021-03-22 18:49:42 +00:00
scripting Refactor all usage of RegisterFunction to ScriptFunction::Register 2021-03-02 20:01:14 +00:00
tests Fix unit-only Attack move. 2021-01-21 15:58:33 +00:00
XML Refactors smart pointers creation, reduces code duplication and improves exception safety. 2021-02-13 23:53:40 +00:00
ArchiveBuilder.cpp Make real directory paths on the VFS predictable. 2021-03-22 18:49:42 +00:00
ArchiveBuilder.h Handle mods specified on the command line when using the archive builder. 2014-06-15 16:43:08 +00:00
CacheLoader.cpp Make real directory paths on the VFS predictable. 2021-03-22 18:49:42 +00:00
CacheLoader.h Fix biome-specific mappreviews in 7f602037ba for zipped mods, refs #4962. 2018-08-05 21:50:00 +00:00
CConsole.cpp Fix typos in 12cceed3d9 2021-01-16 15:46:56 +00:00
CConsole.h Removes unused containers included in headers. 2021-03-03 23:01:08 +00:00
CLogger.cpp Cleanups includes for cassert and streams. 2021-03-03 22:26:49 +00:00
CLogger.h Cleanups includes for cassert and streams. 2021-03-03 22:26:49 +00:00
Compress.cpp More build fixes for FreeBSD. 2012-01-31 00:06:56 +00:00
Compress.h Further header & precompiled cleanup, fix no-PCH builds. 2020-12-09 14:39:14 +00:00
ConfigDB.cpp Fixes config crash in case of an empty value 2021-02-14 02:10:46 +00:00
ConfigDB.h Fixes config crash in case of an empty value 2021-02-14 02:10:46 +00:00
CStr.cpp Fix segfault when sending a very large net chat message. 2020-08-01 15:25:13 +00:00
CStr.h Add a hashing function for CStr8 & CStrW 2020-11-19 15:25:27 +00:00
CStrIntern.cpp Refactors smart pointers creation, reduces code duplication and improves exception safety. 2021-02-13 23:53:40 +00:00
CStrIntern.h Replace boost::unordered_map, boost::unordered_set with std::unordered_map, std::unordered_set to establish consistency. 2019-11-25 14:30:25 +00:00
CStrInternStatic.h Removes shader code duplication to calculate LOS. 2021-01-20 18:46:32 +00:00
DllLoader.cpp Fix and disable some pesky Windows warnings. 2021-02-05 12:20:06 +00:00
DllLoader.h Remove trailing whitespace and whitespace in empty lines of source/ except source/third_party/. 2016-11-23 11:18:37 +00:00
Errors.cpp Don't leak all GUI objects on name ambiguity following 5cc814759f and remove ERROR_GROUP GUI. 2019-10-11 16:20:50 +00:00
Errors.h Catch exceptions by reference (by convention), based on patch from Markus, refs #1852 2013-05-22 22:27:53 +00:00
FileIo.cpp Update (and debundle) fmt dependancy 2020-11-26 21:01:32 +00:00
FileIo.h Clean up header includes, add new forward declarations. 2020-11-21 11:20:29 +00:00
Filesystem.cpp Further header & precompiled cleanup, fix no-PCH builds. 2020-12-09 14:39:14 +00:00
Filesystem.h Further header & precompiled cleanup, fix no-PCH builds. 2020-12-09 14:39:14 +00:00
Game.cpp Fixes revealed missed includes after e104b41be2. 2021-03-03 22:38:59 +00:00
Game.h Update (and debundle) fmt dependancy 2020-11-26 21:01:32 +00:00
Globals.cpp Fix hotkeys not releasing properly. 2021-01-16 15:24:58 +00:00
Globals.h Fix hotkeys not releasing properly. 2021-01-16 15:24:58 +00:00
GUID.cpp Actually remove trailing whitespace for non-header files as well. 2016-11-23 13:02:58 +00:00
GUID.h Clean up header includes, add new forward declarations. 2020-11-21 11:20:29 +00:00
Hotkey.cpp Fix unit-only Attack move. 2021-01-21 15:58:33 +00:00
Hotkey.h Further Hotkey fixes. 2021-01-18 10:58:16 +00:00
Joystick.cpp Remove disabled by default SDL1 support. 2015-12-14 10:52:21 +00:00
Joystick.h Renames our sdl.h to libsdl.h, to avoid case sensitivity errors when it includes SDL.h. 2012-01-12 23:32:27 +00:00
KeyName.cpp Replaces UNICODE characters in the code by consistent ASCII characters. 2021-01-15 10:07:36 +00:00
KeyName.h Fix no-PCH builds and checkrefs following a4852c4c01 2020-11-20 11:41:56 +00:00
Loader.cpp Remove binary_function usage. 2020-11-30 15:45:05 +00:00
Loader.h Resolve Loader memory leak from 1f1642bfe3. 2019-09-30 08:49:00 +00:00
LoaderThunks.h Remove not needed checks and code for VS2015 [VS2013 -> VS2015] 2020-01-19 12:43:41 +00:00
Mod.cpp Make real directory paths on the VFS predictable. 2021-03-22 18:49:42 +00:00
Mod.h Rename ScriptRuntime to ScriptContext 2020-11-14 10:57:50 +00:00
ModInstaller.cpp Cleanups includes for cassert and streams. 2021-03-03 22:26:49 +00:00
ModInstaller.h Rename ScriptRuntime to ScriptContext 2020-11-14 10:57:50 +00:00
ModIo.cpp Refactor all usage of RegisterFunction to ScriptFunction::Register 2021-03-02 20:01:14 +00:00
ModIo.h Refactor all usage of RegisterFunction to ScriptFunction::Register 2021-03-02 20:01:14 +00:00
Profile.cpp Fix windows SEH hook when crashing in an std::thread 2021-01-10 08:39:54 +00:00
Profile.h Further header & precompiled cleanup, fix no-PCH builds. 2020-12-09 14:39:14 +00:00
Profiler2.cpp Fixes revealed missed includes after e104b41be2. 2021-03-03 22:38:59 +00:00
Profiler2.h Removes unused containers included in headers. 2021-03-03 23:01:08 +00:00
Profiler2GPU.cpp Fix building without precompiled headers. 2020-11-18 11:35:36 +00:00
Profiler2GPU.h Make all Wildfire Games copyright headers consistent by always ending with a period and using (C) instead of (c). 2017-07-10 14:26:24 +00:00
ProfileViewer.cpp Fixes revealed missed includes after e104b41be2. 2021-03-03 22:38:59 +00:00
ProfileViewer.h Further header & precompiled cleanup, fix no-PCH builds. 2020-12-09 14:39:14 +00:00
Pyrogenesis.cpp Bump version to alpha 25. 2021-02-27 08:48:30 +00:00
Pyrogenesis.h Fix windows SEH hook when crashing in an std::thread 2021-01-10 08:39:54 +00:00
Replay.cpp Improve JS Exception handling. 2020-11-15 18:29:17 +00:00
Replay.h Include Pyrogenesis.h and os_path.h where needed 2020-01-02 18:07:40 +00:00
SavedGame.cpp Make real directory paths on the VFS predictable. 2021-03-22 18:49:42 +00:00
SavedGame.h [SM52 2/2] Update to Spidermonkey 52 APIs. 2020-11-18 14:39:04 +00:00
Shapes.cpp Fix some gcc 8 and gcc 9 compiler warnings that were thrown 4500 times. 2019-07-09 00:18:48 +00:00
Shapes.h Fix some gcc 8 and gcc 9 compiler warnings that were thrown 4500 times. 2019-07-09 00:18:48 +00:00
Singleton.h Simple refactoring of Singleton. Make it non-copyable. 2019-01-13 15:11:40 +00:00
TemplateLoader.cpp Add missing cpp files in last commit refs D2503 2020-05-28 18:18:00 +00:00
TemplateLoader.h More ScriptInterface const. 2017-11-25 06:49:58 +00:00
Threading.cpp Fix windows SEH hook when crashing in an std::thread 2021-01-10 08:39:54 +00:00
Threading.h Fix windows SEH hook when crashing in an std::thread 2021-01-10 08:39:54 +00:00
ThreadUtil.h Fix windows SEH hook when crashing in an std::thread 2021-01-10 08:39:54 +00:00
TouchInput.cpp Cleanup Camera related code and uses constant references where possible. 2019-10-03 12:58:47 +00:00
TouchInput.h Set svn:eol-style=native, fix some inconsistent line endings 2013-12-06 00:42:50 +00:00
UniDoubler.h Use default Unicode encoding in source code on Windows. 2017-11-29 20:14:22 +00:00
UserReport.cpp Refactors smart pointers creation, reduces code duplication and improves exception safety. 2021-02-13 23:53:40 +00:00
UserReport.h Write UserReport data to local logfiles, so that users can review the personal data impact without exposing the data to JS/mods, refs #5257, b3438cabd2. 2018-08-22 22:17:42 +00:00
utf16string.h Further header & precompiled cleanup, fix no-PCH builds. 2020-12-09 14:39:14 +00:00
Util.cpp Adds ortho projection type and its test. 2021-03-17 23:03:35 +00:00
Util.h Fixes big screenshots with water (reflection or refraction camera), adds big screenshot customization. 2021-02-12 21:20:07 +00:00
VideoMode.cpp Allows to override GL version for SDL. 2021-01-22 19:40:02 +00:00
VideoMode.h Remove obsolete GetVideoMode platform-specifics, replaces by platform-agnostic SDL2`s APIs. 2020-06-08 17:49:26 +00:00
VisualReplay.cpp Update the replay cache to consider modification time. 2021-03-07 08:55:27 +00:00
VisualReplay.h Fix NoPCH following cb346e207b 2021-03-03 11:08:57 +00:00
World.cpp [SM52 2/2] Update to Spidermonkey 52 APIs. 2020-11-18 14:39:04 +00:00
World.h [SM52 2/2] Update to Spidermonkey 52 APIs. 2020-11-18 14:39:04 +00:00