2 Copyright (c) 2001, Loki software, inc.
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34 // - Directories should be searched in the following order: ~/.q3a/baseq3,
35 // install dir (/usr/local/games/quake3/baseq3) and cd_path (/mnt/cdrom/baseq3).
37 // - Pak files are searched first inside the directories.
38 // - Case insensitive.
39 // - Unix-style slashes (/) (windows is backwards .. everyone knows that)
41 // Leonardo Zide (leo@lokigames.com)
45 #include "globaldefs.h"
51 #include "qerplugin.h"
52 #include "idatastream.h"
55 ArchiveModules &FileSystemQ3API_getArchiveModules();
57 #include "ifilesystem.h"
59 #include "generic/callback.h"
60 #include "string/string.h"
61 #include "stream/stringstream.h"
63 #include "moduleobservers.h"
64 #include "filematch.h"
68 const int VFS_MAXDIRS = 64;
74 #define gamemode_get GlobalRadiant().getGameMode
78 // =============================================================================
81 Archive *OpenArchive(const char *name);
83 struct archive_entry_t {
92 typedef std::list<archive_entry_t> archives_t;
94 static archives_t g_archives;
95 static char g_strDirs[VFS_MAXDIRS][PATH_MAX + 1];
97 static char g_strForbiddenDirs[VFS_MAXDIRS][PATH_MAX + 1];
98 static int g_numForbiddenDirs = 0;
99 static bool g_bUsePak = true;
101 ModuleObservers g_observers;
103 // =============================================================================
106 static void AddSlash(char *str)
108 std::size_t n = strlen(str);
110 if (str[n - 1] != '\\' && str[n - 1] != '/') {
111 globalErrorStream() << "WARNING: directory path does not end with separator: " << str << "\n";
117 static void FixDOSName(char *src)
119 if (src == 0 || strchr(src, '\\') == 0) {
123 globalErrorStream() << "WARNING: invalid path separator '\\': " << src << "\n";
133 const _QERArchiveTable *GetArchiveTable(ArchiveModules &archiveModules, const char *ext)
135 StringOutputStream tmp(16);
136 tmp << LowerCase(ext);
137 return archiveModules.findModule(tmp.c_str());
140 static Archive *InitPakFile(ArchiveModules &archiveModules, const char *filename)
142 const _QERArchiveTable *table = GetArchiveTable(archiveModules, path_get_extension(filename));
145 archive_entry_t entry;
146 entry.name = filename;
148 entry.archive = table->m_pfnOpenArchive(filename);
149 entry.is_pakfile = true;
150 g_archives.push_back(entry);
151 globalOutputStream() << " pak file: " << filename << "\n";
153 return entry.archive;
159 inline void pathlist_prepend_unique(GSList *&pathlist, char *path)
161 if (g_slist_find_custom(pathlist, path, (GCompareFunc) path_compare) == 0) {
162 pathlist = g_slist_prepend(pathlist, path);
168 class DirectoryListVisitor : public Archive::Visitor {
170 const char *m_directory;
172 DirectoryListVisitor(GSList *&matches, const char *directory)
173 : m_matches(matches), m_directory(directory)
176 void visit(const char *name)
178 const char *subname = path_make_relative(name, m_directory);
179 if (subname != name) {
180 if (subname[0] == '/') {
183 char *dir = g_strdup(subname);
184 char *last_char = dir + strlen(dir);
185 if (last_char != dir && *(--last_char) == '/') {
188 pathlist_prepend_unique(m_matches, dir);
193 class FileListVisitor : public Archive::Visitor {
195 const char *m_directory;
196 const char *m_extension;
198 FileListVisitor(GSList *&matches, const char *directory, const char *extension)
199 : m_matches(matches), m_directory(directory), m_extension(extension)
202 void visit(const char *name)
204 const char *subname = path_make_relative(name, m_directory);
205 if (subname != name) {
206 if (subname[0] == '/') {
209 if (m_extension[0] == '*' || extension_equal(path_get_extension(subname), m_extension)) {
210 pathlist_prepend_unique(m_matches, g_strdup(subname));
216 static GSList *GetListInternal(const char *refdir, const char *ext, bool directories, std::size_t depth)
220 ASSERT_MESSAGE(refdir[strlen(refdir) - 1] == '/', "search path does not end in '/'");
223 for (archives_t::iterator i = g_archives.begin(); i != g_archives.end(); ++i) {
224 DirectoryListVisitor visitor(files, refdir);
225 (*i).archive->forEachFile(Archive::VisitorFunc(visitor, Archive::eDirectories, depth), refdir);
228 for (archives_t::iterator i = g_archives.begin(); i != g_archives.end(); ++i) {
229 FileListVisitor visitor(files, refdir, ext);
230 (*i).archive->forEachFile(Archive::VisitorFunc(visitor, Archive::eFiles, depth), refdir);
234 files = g_slist_reverse(files);
239 inline int ascii_to_upper(int c)
241 if (c >= 'a' && c <= 'z') {
242 return c - ('a' - 'A');
248 This behaves identically to stricmp(a,b), except that ASCII chars
249 [\]^`_ come AFTER alphabet chars instead of before. This is because
250 it converts all alphabet chars to uppercase before comparison,
251 while stricmp converts them to lowercase.
253 static int string_compare_nocase_upper(const char *a, const char *b)
256 int c1 = ascii_to_upper(*a++);
257 int c2 = ascii_to_upper(*b++);
271 // Arnout: note - sort pakfiles in reverse order. This ensures that
272 // later pakfiles override earlier ones. This because the vfs module
273 // returns a filehandle to the first file it can find (while it should
274 // return the filehandle to the file in the most overriding pakfile, the
275 // last one in the list that is).
277 //!\todo Analyse the code in rtcw/q3 to see which order it sorts pak files.
280 bool operator()(const CopiedString &self, const CopiedString &other) const
282 return string_compare_nocase_upper(self.c_str(), other.c_str()) > 0;
286 typedef std::set<CopiedString, PakLess> Archives;
288 Archive *AddPk3Dir(const char *fullpath)
290 if (g_numDirs == VFS_MAXDIRS) { return 0; }
292 strncpy(g_strDirs[g_numDirs], fullpath, PATH_MAX);
293 g_strDirs[g_numDirs][PATH_MAX] = '\0';
297 archive_entry_t entry;
298 entry.name = fullpath;
299 entry.archive = OpenArchive(fullpath);
300 entry.is_pakfile = false;
301 g_archives.push_back(entry);
303 return entry.archive;
307 // for Daemon DPK vfs
309 Archive *AddDpkDir(const char *fullpath)
311 return AddPk3Dir(fullpath);
314 struct pakfile_path_t {
315 CopiedString fullpath; // full pak dir or pk3dir name
316 bool is_pakfile; // defines is it .pk3dir or .pk3 file
319 typedef std::pair<CopiedString, pakfile_path_t> PakfilePathsKV;
320 typedef std::map<CopiedString, pakfile_path_t> PakfilePaths; // key must have no extension, only name
322 static PakfilePaths g_pakfile_paths;
324 void AddDpkPak(const char *name, const char *fullpath, bool is_pakfile)
326 pakfile_path_t pakfile_path;
327 pakfile_path.fullpath = fullpath;
328 pakfile_path.is_pakfile = is_pakfile;
329 g_pakfile_paths.insert(PakfilePathsKV(name, pakfile_path));
332 // takes name without ext, returns without ext
333 static const char *GetLatestDpkPakVersion(const char *name)
335 const char *maxversion = 0;
336 const char *result = 0;
338 const char *pakversion;
339 int namelen = string_length(name);
341 for (PakfilePaths::iterator i = g_pakfile_paths.begin(); i != g_pakfile_paths.end(); ++i) {
342 pakname = i->first.c_str();
343 if (strncmp(pakname, name, namelen) != 0 || pakname[namelen] != '_') { continue; }
344 pakversion = pakname + (namelen + 1);
345 if (maxversion == 0 || DpkPakVersionCmp(pakversion, maxversion) > 0) {
346 maxversion = pakversion;
353 // release string after using
354 static char *GetCurrentMapDpkPakName()
361 mapname = string_clone(GlobalRadiant().getMapName());
362 mapnamelen = string_length(mapname);
364 mapdir = strrchr(mapname, '/');
367 if (strncmp(mapdir, ".dpkdir/maps/", 13) == 0) {
369 mapdir = strrchr(mapname, '/');
370 if (mapdir) { mapdir++; }
371 else { mapdir = mapname; }
372 result = string_clone(mapdir);
376 string_release(mapname, mapnamelen);
381 // prevent loading duplicates or circular references
382 static Archives g_loaded_dpk_paks;
384 // actual pak adding on initialise, deferred from InitDirectory
385 // Daemon DPK filesystem doesn't need load all paks it finds
386 static void LoadDpkPakWithDeps(const char *pakname)
389 ArchiveTextFile *depsFile;
391 if (pakname == NULL) {
392 // load DEPS from game pack
393 StringOutputStream baseDirectory(256);
394 const char *basegame = GlobalRadiant().getRequiredGameDescriptionKeyValue("basegame");
395 baseDirectory << GlobalRadiant().getGameToolsPath() << basegame << '/';
396 arc = AddDpkDir(baseDirectory.c_str());
397 depsFile = arc->openTextFile("DEPS");
399 const char *und = strrchr(pakname, '_');
401 pakname = GetLatestDpkPakVersion(pakname);
403 if (!pakname || g_loaded_dpk_paks.find(pakname) != g_loaded_dpk_paks.end()) {
407 PakfilePaths::iterator i = g_pakfile_paths.find(pakname);
408 if (i == g_pakfile_paths.end()) {
412 if (i->second.is_pakfile) {
413 arc = InitPakFile(FileSystemQ3API_getArchiveModules(), i->second.fullpath.c_str());
415 arc = AddDpkDir(i->second.fullpath.c_str());
417 g_loaded_dpk_paks.insert(pakname);
419 depsFile = arc->openTextFile("DEPS");
427 TextLinesInputStream<TextInputStream> istream = depsFile->getInputStream();
432 while (line = istream.readLine(), string_length(line.c_str())) {
433 if (!DpkReadDepsLine(line.c_str(), &p_name, &p_version)) { continue; }
435 const char *p_latest = GetLatestDpkPakVersion(p_name);
436 if (p_latest) { LoadDpkPakWithDeps(p_latest); }
438 int len = string_length(p_name) + string_length(p_version) + 1;
439 char *p_pakname = string_new(len);
440 sprintf(p_pakname, "%s_%s", p_name, p_version);
441 LoadDpkPakWithDeps(p_pakname);
442 string_release(p_pakname, len);
444 string_release(p_name, string_length(p_name));
445 if (p_version) { string_release(p_version, string_length(p_version)); }
452 // end for Daemon DPK vfs
454 // =============================================================================
457 // reads all pak files from a dir
458 void InitDirectory(const char *directory, ArchiveModules &archiveModules)
462 g_numForbiddenDirs = 0;
463 StringTokeniser st(GlobalRadiant().getGameDescriptionKeyValue("forbidden_paths"), " ");
464 for (j = 0; j < VFS_MAXDIRS; ++j) {
465 const char *t = st.getToken();
466 if (string_empty(t)) {
469 strncpy(g_strForbiddenDirs[g_numForbiddenDirs], t, PATH_MAX);
470 g_strForbiddenDirs[g_numForbiddenDirs][PATH_MAX] = '\0';
471 ++g_numForbiddenDirs;
474 for (j = 0; j < g_numForbiddenDirs; ++j) {
475 char *dbuf = g_strdup(directory);
476 if (*dbuf && dbuf[strlen(dbuf) - 1] == '/') {
477 dbuf[strlen(dbuf) - 1] = 0;
479 const char *p = strrchr(dbuf, '/');
480 p = (p ? (p + 1) : dbuf);
481 if (matchpattern(p, g_strForbiddenDirs[j], TRUE)) {
487 if (j < g_numForbiddenDirs) {
488 printf("Directory %s matched by forbidden dirs, removed\n", directory);
492 if (g_numDirs == VFS_MAXDIRS) {
496 strncpy(g_strDirs[g_numDirs], directory, PATH_MAX);
497 g_strDirs[g_numDirs][PATH_MAX] = '\0';
498 FixDOSName(g_strDirs[g_numDirs]);
499 AddSlash(g_strDirs[g_numDirs]);
501 const char *path = g_strDirs[g_numDirs];
506 archive_entry_t entry;
508 entry.archive = OpenArchive(path);
509 entry.is_pakfile = false;
510 g_archives.push_back(entry);
515 GDir *dir = g_dir_open(path, 0, 0);
518 globalOutputStream() << "vfs directory: " << path << "\n";
521 Archives archivesOverride;
522 const char *ignore_prefix = "";
523 const char *override_prefix = "";
524 bool is_pk3_vfs, is_pk4_vfs, is_dpk_vfs;
526 is_pk3_vfs = GetArchiveTable(archiveModules, "pk3");
527 is_pk4_vfs = GetArchiveTable(archiveModules, "pk4");
528 is_dpk_vfs = GetArchiveTable(archiveModules, "dpk");
531 // See if we are in "sp" or "mp" mapping mode
532 const char *gamemode = gamemode_get();
534 if (strcmp(gamemode, "sp") == 0) {
535 ignore_prefix = "mp_";
536 override_prefix = "sp_";
537 } else if (strcmp(gamemode, "mp") == 0) {
538 ignore_prefix = "sp_";
539 override_prefix = "mp_";
544 const char *name = g_dir_read_name(dir);
549 for (j = 0; j < g_numForbiddenDirs; ++j) {
550 const char *p = strrchr(name, '/');
551 p = (p ? (p + 1) : name);
552 if (matchpattern(p, g_strForbiddenDirs[j], TRUE)) {
556 if (j < g_numForbiddenDirs) {
560 const char *ext = strrchr(name, '.');
561 char tmppath[PATH_MAX];
564 if (!!ext && !string_compare_nocase_upper(ext, ".dpkdir")) {
565 snprintf(tmppath, PATH_MAX, "%s%s/", path, name);
566 tmppath[PATH_MAX] = '\0';
569 AddDpkPak(CopiedString(StringRange(name, ext)).c_str(), tmppath, false);
573 if (is_pk3_vfs || is_pk4_vfs) {
574 if (!!ext && (!string_compare_nocase_upper(ext, ".pk3dir")
575 || !string_compare_nocase_upper(ext, ".pk4dir"))) {
576 snprintf(tmppath, PATH_MAX, "%s%s/", path, name);
577 tmppath[PATH_MAX] = '\0';
584 // GetArchiveTable() needs "pk3" if ext is ".pk3"
585 if ((ext == 0) || *(ext + 1) == '\0' || GetArchiveTable(archiveModules, ext + 1) == 0) {
589 // using the same kludge as in engine to ensure consistency
590 if (!string_empty(ignore_prefix) && strncmp(name, ignore_prefix, strlen(ignore_prefix)) == 0) {
593 if (!string_empty(override_prefix) && strncmp(name, override_prefix, strlen(override_prefix)) == 0) {
594 if (!string_compare_nocase_upper(ext, ".dpk")) {
596 archives.insert(name);
599 archivesOverride.insert(name);
604 archives.insert(name);
609 // add the entries to the vfs
612 for (Archives::iterator i = archives.begin(); i != archives.end(); ++i) {
613 const char *name = i->c_str();
614 const char *ext = strrchr(name, '.');
615 if (!string_compare_nocase_upper(ext, ".dpk")) {
616 CopiedString name_final = CopiedString(StringRange(name, ext));
617 fullpath = string_new_concat(path, name);
618 AddDpkPak(name_final.c_str(), fullpath, true);
619 string_release(fullpath, string_length(fullpath));
623 if (is_pk3_vfs || is_pk4_vfs) {
624 for (Archives::iterator i = archivesOverride.begin(); i != archivesOverride.end(); ++i) {
625 const char *name = i->c_str();
626 const char *ext = strrchr(name, '.');
627 if (!string_compare_nocase_upper(ext, ".pk3")
628 || !string_compare_nocase_upper(ext, ".pk4")) {
629 fullpath = string_new_concat(path, i->c_str());
630 InitPakFile(archiveModules, fullpath);
631 string_release(fullpath, string_length(fullpath));
634 for (Archives::iterator i = archives.begin(); i != archives.end(); ++i) {
635 const char *name = i->c_str();
636 const char *ext = strrchr(name, '.');
637 if (!string_compare_nocase_upper(ext, ".pk3")
638 || !string_compare_nocase_upper(ext, ".pk4")) {
639 fullpath = string_new_concat(path, i->c_str());
640 InitPakFile(archiveModules, fullpath);
641 string_release(fullpath, string_length(fullpath));
646 globalErrorStream() << "vfs directory not found: " << path << "\n";
651 // frees all memory that we allocated
652 // FIXME TTimo this should be improved so that we can shutdown and restart the VFS without exiting Radiant?
653 // (for instance when modifying the project settings)
656 for (archives_t::iterator i = g_archives.begin(); i != g_archives.end(); ++i) {
657 (*i).archive->release();
662 g_numForbiddenDirs = 0;
664 g_pakfile_paths.clear();
665 g_loaded_dpk_paks.clear();
668 const int VFS_SEARCH_PAK = 0x1;
669 const int VFS_SEARCH_DIR = 0x2;
671 int GetFileCount(const char *filename, int flag)
674 char fixed[PATH_MAX + 1];
676 strncpy(fixed, filename, PATH_MAX);
677 fixed[PATH_MAX] = '\0';
681 flag = VFS_SEARCH_PAK | VFS_SEARCH_DIR;
684 for (archives_t::iterator i = g_archives.begin(); i != g_archives.end(); ++i) {
685 if (((*i).is_pakfile && (flag & VFS_SEARCH_PAK) != 0)
686 || (!(*i).is_pakfile && (flag & VFS_SEARCH_DIR) != 0)) {
687 if ((*i).archive->containsFile(fixed)) {
696 ArchiveFile *OpenFile(const char *filename)
698 ASSERT_MESSAGE(strchr(filename, '\\') == 0, "path contains invalid separator '\\': \"" << filename << "\"");
699 for (archives_t::iterator i = g_archives.begin(); i != g_archives.end(); ++i) {
700 ArchiveFile *file = (*i).archive->openFile(filename);
709 ArchiveTextFile *OpenTextFile(const char *filename)
711 ASSERT_MESSAGE(strchr(filename, '\\') == 0, "path contains invalid separator '\\': \"" << filename << "\"");
712 for (archives_t::iterator i = g_archives.begin(); i != g_archives.end(); ++i) {
713 ArchiveTextFile *file = (*i).archive->openTextFile(filename);
722 // NOTE: when loading a file, you have to allocate one extra byte and set it to \0
723 std::size_t LoadFile(const char *filename, void **bufferptr, int index)
725 char fixed[PATH_MAX + 1];
727 strncpy(fixed, filename, PATH_MAX);
728 fixed[PATH_MAX] = '\0';
731 ArchiveFile *file = OpenFile(fixed);
734 *bufferptr = malloc(file->size() + 1);
735 // we need to end the buffer with a 0
736 ((char *) (*bufferptr))[file->size()] = 0;
738 std::size_t length = file->getInputStream().read((InputStream::byte_type *) *bufferptr, file->size());
747 void FreeFile(void *p)
752 GSList *GetFileList(const char *dir, const char *ext, std::size_t depth)
754 return GetListInternal(dir, ext, false, depth);
757 GSList *GetDirList(const char *dir, std::size_t depth)
759 return GetListInternal(dir, 0, true, depth);
762 void ClearFileDirList(GSList **lst)
765 g_free((*lst)->data);
766 *lst = g_slist_remove(*lst, (*lst)->data);
770 const char *FindFile(const char *relative)
772 for (archives_t::iterator i = g_archives.begin(); i != g_archives.end(); ++i) {
773 if ((*i).archive->containsFile(relative)) {
774 return (*i).name.c_str();
781 const char *FindPath(const char *absolute)
783 const char *best = "";
784 for (archives_t::iterator i = g_archives.begin(); i != g_archives.end(); ++i) {
785 if (string_length((*i).name.c_str()) > string_length(best)) {
786 if (path_equal_n(absolute, (*i).name.c_str(), string_length((*i).name.c_str()))) {
787 best = (*i).name.c_str();
796 class Quake3FileSystem : public VirtualFileSystem {
798 void initDirectory(const char *path)
800 InitDirectory(path, FileSystemQ3API_getArchiveModules());
806 globalOutputStream() << "filesystem initialised\n";
807 g_observers.realise();
812 ArchiveModules &archiveModules = FileSystemQ3API_getArchiveModules();
813 bool is_dpk_vfs = GetArchiveTable(archiveModules, "dpk");
817 g_loaded_dpk_paks.clear();
819 // Load DEPS from game pack
820 LoadDpkPakWithDeps(NULL);
822 // prevent VFS double start, for MapName="" and MapName="unnamed.map"
823 if (string_length(GlobalRadiant().getMapName())) {
824 // load map's paks from DEPS
825 char *mappakname = GetCurrentMapDpkPakName();
826 if (mappakname != NULL) {
827 LoadDpkPakWithDeps(mappakname);
828 string_release(mappakname, string_length(mappakname));
832 g_pakfile_paths.clear();
833 g_loaded_dpk_paks.clear();
839 // like shutdown() but does not unrealise (keep map etc.)
845 // like initialise() but does not realise (keep map etc.)
847 globalOutputStream() << "filesystem refreshed\n";
852 g_observers.unrealise();
853 globalOutputStream() << "filesystem shutdown\n";
857 int getFileCount(const char *filename, int flags)
859 return GetFileCount(filename, flags);
862 ArchiveFile *openFile(const char *filename)
864 return OpenFile(filename);
867 ArchiveTextFile *openTextFile(const char *filename)
869 return OpenTextFile(filename);
872 std::size_t loadFile(const char *filename, void **buffer)
874 return LoadFile(filename, buffer, 0);
877 void freeFile(void *p)
882 void forEachDirectory(const char *basedir, const FileNameCallback &callback, std::size_t depth)
884 GSList *list = GetDirList(basedir, depth);
886 for (GSList *i = list; i != 0; i = g_slist_next(i)) {
887 callback(reinterpret_cast<const char *>((*i).data ));
890 ClearFileDirList(&list);
893 void forEachFile(const char *basedir, const char *extension, const FileNameCallback &callback, std::size_t depth)
895 GSList *list = GetFileList(basedir, extension, depth);
897 for (GSList *i = list; i != 0; i = g_slist_next(i)) {
898 const char *name = reinterpret_cast<const char *>((*i).data );
899 if (extension_equal(path_get_extension(name), extension)) {
904 ClearFileDirList(&list);
907 GSList *getDirList(const char *basedir)
909 return GetDirList(basedir, 1);
912 GSList *getFileList(const char *basedir, const char *extension)
914 return GetFileList(basedir, extension, 1);
917 void clearFileDirList(GSList **lst)
919 ClearFileDirList(lst);
922 const char *findFile(const char *name)
924 return FindFile(name);
927 const char *findRoot(const char *name)
929 return FindPath(name);
932 void attach(ModuleObserver &observer)
934 g_observers.attach(observer);
937 void detach(ModuleObserver &observer)
939 g_observers.detach(observer);
942 Archive *getArchive(const char *archiveName, bool pakonly)
944 for (archives_t::iterator i = g_archives.begin(); i != g_archives.end(); ++i) {
945 if (pakonly && !(*i).is_pakfile) {
949 if (path_equal((*i).name.c_str(), archiveName)) {
956 void forEachArchive(const ArchiveNameCallback &callback, bool pakonly, bool reverse)
959 g_archives.reverse();
962 for (archives_t::iterator i = g_archives.begin(); i != g_archives.end(); ++i) {
963 if (pakonly && !(*i).is_pakfile) {
967 callback((*i).name.c_str());
971 g_archives.reverse();
977 Quake3FileSystem g_Quake3FileSystem;
979 VirtualFileSystem &GetFileSystem()
981 return g_Quake3FileSystem;
984 void FileSystem_Init()
988 void FileSystem_Shutdown()