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C4Reloc.cpp
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2  * OpenClonk, http://www.openclonk.org
3  *
4  * Copyright (c) 2011-2016, The OpenClonk Team and contributors
5  *
6  * Distributed under the terms of the ISC license; see accompanying file
7  * "COPYING" for details.
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9  * "Clonk" is a registered trademark of Matthes Bender, used with permission.
10  * See accompanying file "TRADEMARK" for details.
11  *
12  * To redistribute this file separately, substitute the full license texts
13  * for the above references.
14  */
15 
16 #include "C4Include.h"
17 #include "config/C4Reloc.h"
18 
19 #include "game/C4Application.h"
20 
21 C4Reloc Reloc; // singleton
22 
24 {
25  Paths.clear();
26 
27  // The system folder (i.e. installation path) has higher priority than the user path
28  // Although this is counter-intuitive (the user may want to overload system files in the user path),
29  // people had trouble when they downloaded e.g. an Objects.ocd file in a network lobby and that copy permanently
30  // ruined their OpenClonk installation with no obvious way to fix it.
31  // Not even reinstalling would fix the problem because reinstallation does not overwrite user data.
32  // We currently don't have any valid case where overloading system files would make sense so just give higher priority to the system path for now.
33 #ifndef __APPLE__
34  // Add planet subfolder with highest priority because it's used when starting directly from the repository with binaries in the root folder
36  planet.AppendBackslash();
37  planet.Append("planet");
38  AddPath(planet.getData());
39 #endif
40  // Add main system path
42  // Add user path for additional data (player files, user scenarios, etc.)
44 }
45 
46 bool C4Reloc::AddPath(const char* path, PathType pathType)
47 {
48  if(!IsGlobalPath(path))
49  return false;
50 
51  if(std::find(Paths.begin(), Paths.end(), path) != Paths.end())
52  return false;
53 
54  Paths.emplace_back(StdCopyStrBuf(path), pathType);
55  return true;
56 }
57 
59 {
60  return Paths.begin();
61 }
62 
64 {
65  return Paths.end();
66 }
67 
68 bool C4Reloc::Open(C4Group& hGroup, const char* filename) const
69 {
70  if(IsGlobalPath(filename)) return hGroup.Open(filename);
71 
72  for(const auto & iter : *this)
73  if(hGroup.Open((iter.strBuf + DirSep + filename).getData()))
74  return true;
75 
76  return false;
77 }
78 
79 bool C4Reloc::LocateItem(const char* filename, StdStrBuf& str) const
80 {
81  if(IsGlobalPath(filename))
82  {
83  str.Copy(filename);
84  return true;
85  }
86 
87  for(const auto & iter : *this)
88  {
89  str.Copy(iter.strBuf + DirSep + filename);
90  if(ItemExists(str.getData()))
91  return true;
92  }
93 
94  return false;
95 }
const char * getData() const
Definition: StdBuf.h:442
C4Config Config
Definition: C4Config.cpp:833
bool IsGlobalPath(const char *szPath)
Definition: StdFile.cpp:227
C4ConfigGeneral General
Definition: C4Config.h:251
PathList::const_iterator iterator
Definition: C4Reloc.h:36
void AppendBackslash()
Definition: StdBuf.cpp:248
char UserDataPath[CFG_MaxString+1]
Definition: C4Config.h:54
bool Open(const char *szGroupName, bool fCreate=false)
Definition: C4Group.cpp:514
void Append(const char *pnData, size_t iChars)
Definition: StdBuf.h:519
char SystemDataPath[CFG_MaxString+1]
Definition: C4Config.h:55
bool Open(C4Group &hGroup, const char *filename) const
Definition: C4Reloc.cpp:68
iterator begin() const
Definition: C4Reloc.cpp:58
C4Reloc Reloc
Definition: C4Reloc.cpp:21
void Init()
Definition: C4Reloc.cpp:23
bool AddPath(const char *path, PathType pathType=PATH_Regular)
Definition: C4Reloc.cpp:46
iterator end() const
Definition: C4Reloc.cpp:63
StdCopyStrBuf ExePath
Definition: C4Config.h:52
#define DirSep
bool ItemExists(const char *szItemName)
Definition: StdFile.h:75
void Copy()
Definition: StdBuf.h:467
PathType
Definition: C4Reloc.h:22
bool LocateItem(const char *filename, StdStrBuf &str) const
Definition: C4Reloc.cpp:79