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khanat-code-old/code/ryzom/server/src/patchman_service/file_manager.cpp
Matt Raykowski ef86e7c69f Update: #842 ai_service links, for real.
2010-05-27 07:31:08 -05:00

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// Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
// Copyright (C) 2010 Winch Gate Property Limited
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//-----------------------------------------------------------------------------
// includes
//-----------------------------------------------------------------------------
// nel
#include "nel/misc/variable.h"
#include "nel/misc/file.h"
// game share
#include "game_share/utils.h"
// local
#include "file_manager.h"
//-------------------------------------------------------------------------------------------------
// namespaces
//-------------------------------------------------------------------------------------------------
using namespace std;
using namespace NLMISC;
//using namespace NLNET;
using namespace PATCHMAN;
//-----------------------------------------------------------------------------
// some NLMISC Variable
//-----------------------------------------------------------------------------
NLMISC::CVariable<uint32> FileCacheSize("patchman","FileCacheSize","Minimum size for re file cache",100*1024*1024,0,true);
namespace PATCHMAN
{
//-----------------------------------------------------------------------------
// handy utils
//-----------------------------------------------------------------------------
static NLMISC::CSString getTempFileName(const NLMISC::CSString& fileName)
{
return fileName+".download.tmp";
}
static NLMISC::CSString getIndexFileName(const NLMISC::CSString& rootDirectory)
{
return rootDirectory+".patchman.file_index";
}
//-----------------------------------------------------------------------------
// methods SFileInfo
//-----------------------------------------------------------------------------
bool SFileInfo::updateFileInfo(const NLMISC::CSString& fileName,const NLMISC::CSString& fullFileName, SFileInfo::TUpdateMethod updateMethod, IFileInfoUpdateListener* updateListener)
{
// if file doesn't exist then just drop out
if (!NLMISC::CFile::fileExists(fullFileName))
{
clear();
return false;
}
// give ourselves 5 attempts in case the file is being accessed...
for(uint32 i=0;i<5;++i)
{
try
{
uint32 newFileSize= NLMISC::CFile::getFileSize(fullFileName);
uint32 newFileTime= NLMISC::CFile::getFileModificationDate(fullFileName);
// work out whether the record has changed (based on size and time stamp)
bool changed= ( (FileTime!=newFileTime) || (FileSize!=newFileSize) );
// note: it is possible to hit an exception in the checksum calculation if the file is being accessed
// by someone else
if (updateMethod==FORCE_RECALCULATE || (updateMethod==RECALCULATE_IF_CHANGED && (newFileSize!=FileSize || newFileTime!=FileTime)))
{
// call the updateListener object's callback so that they can write a log, etc
if (updateListener!=NULL)
{
updateListener->cbFileInfoRescanning(fileName,newFileSize);
}
// workout the new checksum and update the 'changed' flag accordingly
CHashKeyMD5 newChecksum= NLMISC::getMD5(fullFileName);
changed|= (Checksum!=newChecksum);
Checksum= newChecksum;
}
// update the fields in our new record
FileName= fileName;
FileSize= newFileSize;
FileTime= newFileTime;
// if there's an update listener object, then let them know about the file update
if (changed && updateListener!=NULL)
{
updateListener->cbFileInfoUpdate(*this);
}
// return true if we are unchanged, otherwise false
return !changed;
}
catch(...)
{
nlwarning("Exception thrown in getMD5(\"%s\") ... will try again in a few seconds",fullFileName.c_str());
nlSleep(5);
}
}
nlwarning("Failed to get info on file: %s",fullFileName.c_str());
clear();
return false;
}
//-----------------------------------------------------------------------------
// methods CFileSpec
//-----------------------------------------------------------------------------
CFileSpec::CFileSpec()
{
}
CFileSpec::CFileSpec(const NLMISC::CSString& fileSpec)
{
_NameSpec= NLMISC::CFile::getFilename(fileSpec);
_PathSpec= NLMISC::CFile::getPath(fileSpec);
_NameIsWild= _NameSpec.contains('*') || _NameSpec.contains('?');
_PathIsWild= _PathSpec.contains('*') || _PathSpec.contains('?');
_AcceptAllNames= (_NameSpec=="*");
_AcceptAllPaths= (_PathSpec=="*/");
}
bool CFileSpec::matches(const NLMISC::CSString& fullFileName) const
{
CSString name= NLMISC::CFile::getFilename(fullFileName);
CSString path= NLMISC::CFile::getPath(fullFileName);
return (_AcceptAllPaths || pathMatches(path)) && (_AcceptAllNames || nameMatches(name));
}
bool CFileSpec::nameMatches(const NLMISC::CSString& fileName) const
{
return _AcceptAllNames || ( _NameIsWild ? testWildCard(fileName,_NameSpec) : (fileName==_NameSpec) );
}
bool CFileSpec::pathMatches(const NLMISC::CSString& path) const
{
// treat the special case where the file that we're set to accept all paths
if (_AcceptAllPaths)
return true;
// treat the special case where the file that we're testing has no path and we
// are looking for files in the root directory only
if (path.empty() && (_PathSpec=="./") )
return true;
return _PathIsWild ? testWildCard(path,_PathSpec) : (path==_PathSpec);
}
NLMISC::CSString CFileSpec::toString() const
{
return _PathSpec+_NameSpec;
}
const CSString& CFileSpec::nameSpec() const
{
return _NameSpec;
}
const CSString& CFileSpec::pathSpec() const
{
return _PathSpec;
}
bool CFileSpec::isWild() const
{
return _NameIsWild || _PathIsWild;
}
bool CFileSpec::nameIsWild() const
{
return _NameIsWild;
}
bool CFileSpec::pathIsWild() const
{
return _PathIsWild;
}
//-----------------------------------------------------------------------------
// methods CRepositoryDirectory
//-----------------------------------------------------------------------------
CRepositoryDirectory::CRepositoryDirectory(const NLMISC::CSString& path)
{
_Root= NLMISC::CPath::getFullPath(path);
_IndexFileIsUpToDate= false;
}
void CRepositoryDirectory::clear()
{
// clear out our directories map
_DirectoryTree.clear();
}
void CRepositoryDirectory::rescanFull(IFileInfoUpdateListener* updateListener)
{
// rescan our directories recursively, starting at the root
_rescanDirectory("",true,updateListener);
// update the index file as required
if (!_IndexFileIsUpToDate)
writeIndex();
}
void CRepositoryDirectory::rescanPartial(IFileInfoUpdateListener* updateListener)
{
// if the directory tree is empty then start with the rooot directory...
if (_DirectoryTree.empty())
{
_rescanDirectory("",false,updateListener);
return;
}
// try to get hold of a ref to the last directory that we rescanned
TDirectoryTree::iterator it= _DirectoryTree.find(_LastRescan);
if (it==_DirectoryTree.end())
{
// we failed to get a ref to the last directory so wrap back round to the start
it= _DirectoryTree.begin();
}
else
{
// increement our iterator to get hold of a ref to the next directory in the map
++it;
// if we reach end of map then wrap back to the start
if (it==_DirectoryTree.end())
{
it= _DirectoryTree.begin();
}
}
// scan the next directory in our map (this is not recursive
_rescanDirectory(it->first,false,updateListener);
_LastRescan= it->first;
// update the index file as required
if (!_IndexFileIsUpToDate)
writeIndex();
}
void CRepositoryDirectory::updateFile(const NLMISC::CSString& fileName,SFileInfo::TUpdateMethod updateMethod, IFileInfoUpdateListener* updateListener)
{
// if the file doesn't exist then give up
if (!NLMISC::CFile::fileExists(_Root+fileName))
return;
// split the file name into path and fileName
const NLMISC::CSString path= NLMISC::CFile::getPath(fileName);
// get hold of the directory object for this file (or create a new one if need be)
TFileInfoMap& directory= _DirectoryTree[path];
// get hold of the file info object for this (or create a new one if need be)
SFileInfo& fileInfo= directory[fileName];
// update the file info for the given file
_IndexFileIsUpToDate&= fileInfo.updateFileInfo(fileName,_Root+fileName,updateMethod,updateListener);
}
// query methods
void CRepositoryDirectory::getFileInfo(const NLMISC::CSString& fileSpec,TFileInfoVector& result,IFileRequestValidator* validator,const NLNET::IModuleProxy *sender) const
{
// split into directory and file name
const CFileSpec spec(fileSpec);
// setup a set of paths to scan
std::vector<TDirectoryTree::const_iterator> paths;
// if the path has wirlcards in it then do a search for wildcard matches otherwise just do a lookup
if (spec.pathIsWild())
{
for (TDirectoryTree::const_iterator it=_DirectoryTree.begin(); it!=_DirectoryTree.end(); ++it)
{
if (spec.pathMatches(it->first))
paths.push_back(it);
}
}
else
{
TDirectoryTree::const_iterator it= _DirectoryTree.find(spec.pathSpec());
if (it != _DirectoryTree.end())
paths.push_back(it);
}
// run through the selected paths looking for files
for (uint32 i=0;i<paths.size();++i)
{
// compose the file name that we're supposed to match
NLMISC::CSString fullFilePattern= paths[i]->first+spec.nameSpec();
// if the filename doesn't have wildcards then just do a straight lookup...
if (!spec.nameIsWild())
{
// see whether we have a match...
TFileInfoMap::const_iterator fit= paths[i]->second.find(fullFilePattern);
if (fit!=paths[i]->second.end())
{
// call the overloadable validation callback before adding the file info record to the result container
if (validator==NULL || validator->cbValidateFileInfoRequest(sender,fit->second.FileName))
{
result.push_back(fit->second);
}
}
continue;
}
// run through the files in the given path
for (TFileInfoMap::const_iterator fit= paths[i]->second.begin(); fit!= paths[i]->second.end(); ++fit)
{
// get hold of the file name for this map entry
const NLMISC::CSString& name=fit->second.FileName;
// do either a wildcard compare or a quick and dirty string compare
if (testWildCard(name,fullFilePattern))
{
// call the overloadable validation callback before adding the file info record to the result container
if (validator==NULL || validator->cbValidateFileInfoRequest(sender,name))
{
result.push_back(fit->second);
}
}
}
}
}
void CRepositoryDirectory::getFile(const NLMISC::CSString& fileName,NLMISC::CSString& resultData,IFileRequestValidator* validator,const NLNET::IModuleProxy *sender) const
{
// start by clearing out the result container...
resultData.clear();
// allow the overloadable validation callback a chance to prohibit read
if (validator!=NULL && !validator->cbValidateDownloadRequest(sender,fileName))
return;
// if the file exists then go ahead and read it
NLMISC::CSString fullFileName= _Root+fileName;
if (NLMISC::CFile::fileExists(fullFileName))
{
resultData.readFromFile(fullFileName);
}
}
const NLMISC::CSString &CRepositoryDirectory::getRootDirectory() const
{
return _Root;
}
bool CRepositoryDirectory::readIndex()
{
// start by clearing out our containers
clear();
// make sure the file exists (return false if not found)
NLMISC::CSString indexFileName= getIndexFileName(_Root);
if (!NLMISC::CFile::fileExists(indexFileName))
return false;
// read the file contents
NLMISC::CSString index;
index.readFromFile(indexFileName);
DROP_IF(index.empty(),"Failed to read data from index file: "+indexFileName,return false);
nlinfo("CRepositoryDirectory_Reading index file: %s",indexFileName.c_str());
NLMISC::CVectorSString lines;
index.splitLines(lines);
for (uint32 i=0;i<lines.size();++i)
{
// get hold of the line and strip off comments and spurious blanks
NLMISC::CSString line= lines[i].splitTo("//").strip();
if (line.empty()) continue;
// break the line down into constituent parts
SFileInfo fileInfo;
fileInfo.FileSize= line.strtok(",").strip().atoi();
fileInfo.FileTime= line.strtok(",").strip().atoi();
fileInfo.Checksum.fromString(line.strtok(",").strip());
fileInfo.FileName= line.strip();
// make sure that the text in the line was valid and that the file on disk looks like the one in our record
DROP_IF(fileInfo.FileName.empty(),"Skipping line due to parse error: "+lines[i],continue);
// add the result to one of our maps of files
NLMISC::CSString path= NLMISC::CFile::getPath(fileInfo.FileName);
_DirectoryTree[path][fileInfo.FileName]=fileInfo;
}
nlinfo("%d entries read from index file",lines.size());
_IndexFileIsUpToDate= true;
return true;
}
bool CRepositoryDirectory::writeIndex() const
{
// get hold of the file name for the index file
NLMISC::CSString indexFileName= getIndexFileName(_Root);
// nldebug("Flushing changes to index file: %s",indexFileName.c_str());
// setup a text buffer to build our output file in
NLMISC::CSString outputText= "// Index file for patchman service\n// *FORMAT*: size, time, checksum, filename\n\n";
// iterate over our directories and their files, building entries
for (TDirectoryTree::const_iterator dit= _DirectoryTree.begin(); dit!= _DirectoryTree.end(); ++dit)
{
const TFileInfoMap& theDirectory= dit->second;
for (TFileInfoMap::const_iterator fit= theDirectory.begin(); fit!=theDirectory.end(); ++fit)
{
const SFileInfo& theInfo= fit->second;
outputText+= NLMISC::toString("%10u,%12u, %s, %s\n",theInfo.FileSize,theInfo.FileTime,theInfo.Checksum.toString().c_str(),theInfo.FileName.c_str());
}
}
// write the resulting buffer to disk
_IndexFileIsUpToDate= outputText.writeToFile(indexFileName);
return _IndexFileIsUpToDate;
}
void CRepositoryDirectory::_rescanDirectory(const NLMISC::CSString& directoryName, bool recurse, IFileInfoUpdateListener* updateListener)
{
// nldebug("VERBOSE_Scanning directory: root=%s directory=%s",_Root.c_str(),directoryName.c_str());
// make sure we exist in the '_DirectoryTree' map (and get a handle to it)
TFileInfoMap& theDirectory= _DirectoryTree[directoryName];
// first scan for directories
std::vector<std::string> pathContents;
NLMISC::CPath::getPathContent(_Root+directoryName,false,true,false,pathContents);
// run through the directories we found...
for (uint32 i=pathContents.size();i--;)
{
NLMISC::CSString childDirectoryName= NLMISC::CSString(pathContents[i]).leftCrop(_Root.size());
// make sure they exist in the '_DirectoryTree' map
_DirectoryTree[childDirectoryName];
// if we're recursing then go for it
if (recurse)
{
_rescanDirectory(childDirectoryName,recurse,updateListener);
}
}
// run through all of the files in our map flagging them as 'not updated'
for (TFileInfoMap::iterator fit= theDirectory.begin(); fit!= theDirectory.end(); ++fit)
{
fit->second.FileName.clear();
}
// now scan for files
pathContents.clear();
NLMISC::CPath::getPathContent(_Root+directoryName,false,false,true,pathContents);
// run through the files adding them to ourself
for (uint32 i=pathContents.size();i--;)
{
// if the file is system file then skip it
if (pathContents[i].find("/.")!=std::string::npos)
continue;
// construct the file name
NLMISC::CSString fileName= NLMISC::CSString(pathContents[i]).leftCrop(_Root.size());
// get hold of the directory entry for this file (or create a new one if not exist) and update it
_IndexFileIsUpToDate&= _DirectoryTree[directoryName][fileName].updateFileInfo(fileName,pathContents[i],SFileInfo::RECALCULATE_IF_CHANGED,updateListener);
}
// run through all of the files in our map looking for files that are not updated and that need erasing
TFileInfoMap::iterator fit= theDirectory.begin();
while (fit!=theDirectory.end())
{
TFileInfoMap::iterator thisIt= fit;
++fit;
if (thisIt->second.FileName.empty())
{
// if there's an update listener object, then let them know about the file update
if (updateListener!=NULL)
{
updateListener->cbFileInfoErased(thisIt->first);
}
// erase the entry in our files map and flag the index file as out of date
theDirectory.erase(thisIt);
_IndexFileIsUpToDate= false;
}
}
}
//-----------------------------------------------------------------------------
// methods CFileManager
//-----------------------------------------------------------------------------
bool CFileManager::load(const NLMISC::CSString& fileName, uint32 startOffset, uint32 numBytes, NLMISC::CSString& result)
{
// clear out the return value before we begin
result.clear();
// make sure the file exists
if (!NLMISC::CFile::fileExists(fileName))
return false;
// nldebug("Loading file data for: %s",fileName.c_str());
// get the file's vital statistics from disk
uint32 fileSize= NLMISC::CFile::getFileSize(fileName);
uint32 fileTime= NLMISC::CFile::getFileModificationDate(fileName);
// run through the files to see if the one we're after is here
TCacheFiles::iterator it= _CacheFiles.begin();
for (; it!=_CacheFiles.end();++it)
{
// if we've found the file we're after then break out here
if (it->FileName==fileName && fileSize==it->FileSize && fileTime==it->FileTime)
{
// nldebug("- Found data in Ram @ offset: %d",it->StartOffset);
break;
}
}
// if we didn't find the file then we have to load it
if (it==_CacheFiles.end())
{
// nldebug("- Found data NOT already in Ram");
// setup a data block for this file
SCacheFileEntry newFileEntry;
newFileEntry.FileName= fileName;
newFileEntry.FileSize= fileSize;
newFileEntry.FileTime= fileTime;
newFileEntry.StartOffset= ~0u;
// if the buffer is too small to load this file then reallocate it and clear out the _CacheFiles vector
if (_CacheBuffer.size()<fileSize || _CacheFiles.empty())
{
_CacheFiles.clear();
_CacheBuffer.clear();
_CacheBuffer.resize(max(uint32(fileSize*2),uint32(FileCacheSize)));
newFileEntry.StartOffset= 0;
// nldebug("- Grew buffer to %d bytes",_CacheBuffer.size());
}
else
{
newFileEntry.StartOffset= _CacheFiles.back().StartOffset+_CacheFiles.back().FileSize;
uint32 requiredEndOffset= newFileEntry.StartOffset+ fileSize;
// see whether we'll fit in between the 'back file and end of buffer
if (requiredEndOffset>_CacheBuffer.size())
{
// clear out all remaining files between us and the end of buffer
while (!_CacheFiles.empty() && _CacheFiles.front().StartOffset>=newFileEntry.StartOffset)
{
// nldebug("- Ditching cache entry: %s",_CacheFiles.front().FileName.c_str());
_CacheFiles.pop_front();
nlassert(!_CacheFiles.empty());
}
// not enough space at end of file so we'll need to spin round to the start
newFileEntry.StartOffset= 0;
requiredEndOffset= fileSize;
}
// our start offset is now OK, so make a bit of room for our data as required
while (!_CacheFiles.empty() && _CacheFiles.front().StartOffset>=newFileEntry.StartOffset && _CacheFiles.front().StartOffset<requiredEndOffset)
{
// nldebug("- Ditching cache entry: %s",_CacheFiles.front().FileName.c_str());
_CacheFiles.pop_front();
}
}
// nldebug("- Reading file data @offset: %d (%d bytes)",newFileEntry.StartOffset,fileSize);
// read in the file
FILE* inf= fopen(fileName.c_str(),"rb");
BOMB_IF(inf==NULL,"Failed to open input file for reading: "+fileName,return false);
uint32 bytesRead=fread(&_CacheBuffer[newFileEntry.StartOffset],1,fileSize,inf);
fclose(inf);
BOMB_IF(bytesRead!=fileSize,"Failed to read data from input file: "+fileName,return false);
// add our new file descriptioon block to the _CacheFiles container
_CacheFiles.push_back(newFileEntry);
it=_CacheFiles.end();
it--;
}
// make sure the requested file segment is valid
uint32 endOffset= startOffset+numBytes;
DROP_IF(endOffset>fileSize,"Ignoring request for data where end offset > file size: "+fileName,return false);
// nldebug("- Retrieving data from buffer @offset: %d (%d bytes)",it->StartOffset+startOffset,numBytes);
// copy out the data chunk that we're after
result.resize(numBytes);
memcpy(&result[0],&_CacheBuffer[it->StartOffset+startOffset],numBytes);
// we succeeded so return true
return true;
}
TRepositoryDirectoryPtr CFileManager::getRepositoryDirectory(const NLMISC::CSString& path)
{
// get hold of a ref to the map entry pointing at the directory we want (create a new map entry if need be)
TRepositoryDirectoryRefPtr& thePtr=_RepositoryDirectories[path];
// if the map entry is null then create a new one
if (thePtr==NULL)
{
thePtr= new CRepositoryDirectory(path);
thePtr->readIndex();
}
return &*thePtr;
}
bool CFileManager::save(const NLMISC::CSString& fileName, const NLMISC::CMemStream& data)
{
NLMISC::CSString tmpFileName= fileName+"__patchman__.sav";
// make sure the destination file is deleted before we begin
if (NLMISC::CFile::fileExists(fileName))
{
NLMISC::CFile::deleteFile(fileName);
}
// try to write the tmp file
try
{
// make sure that the directory structure exists foe the file
NLMISC::CSString path= NLMISC::CFile::getPath(fileName);
if (!path.empty())
{
NLMISC::CFile::createDirectoryTree(path);
}
// go ahead and write the data to disk...
COFile outputFile(tmpFileName);
outputFile.serialBuffer(const_cast<uint8*>(data.buffer()),data.size());
}
catch(...)
{
}
// make sure that the file write succeeded
if (NLMISC::CFile::getFileSize(tmpFileName)!=data.size())
{
nlwarning("Failed to save file '%s' because failed to save tmp file: %s",fileName.c_str(),tmpFileName.c_str());
NLMISC::CFile::deleteFile(tmpFileName);
return false;
}
// write succeeded so rename the tmp file to the correct file name
bool ok= NLMISC::CFile::moveFile(fileName.c_str(),tmpFileName.c_str());
DROP_IF(!ok,"Failed to save file '"+fileName+"' because failed to rename tmp file: '"+tmpFileName+"'",return false);
return true;
}
uint32 CFileManager::getFileSize(const NLMISC::CSString& fileName)
{
try
{
return NLMISC::CFile::getFileSize(fileName);
}
catch(...)
{
return 0;
}
}
} // end of namespace
//-----------------------------------------------------------------------------
// NLMISC_COMMANDS for testing the singleton interface
//-----------------------------------------------------------------------------
NLMISC_CATEGORISED_COMMAND(patchman,fileManagerLoad,"Load a file segment via the file manager","<file name> <start offset> <num bytes>")
{
if (args.size()!=3)
return false;
CSString fileName= args[0];
CSString startOffset=args[1];
CSString numBytes=args[2];
CSString data;
bool ok= CFileManager::getInstance().load(fileName,startOffset.atoui(),numBytes.atoui(),data);
if (ok)
{
log.displayNL("Loaded %d bytes from file: %s[%d] (requested %d) starting: %s",data.size(),fileName.c_str(),startOffset.atoui(),numBytes.atoui(),data.left(20).quote().c_str());
}
else
{
log.displayNL("Load failed for file: %s (from offset %d to %d)",fileName.c_str(),startOffset.atoui(),startOffset.atoui()+numBytes.atoui()-1);
}
return true;
}
NLMISC_CATEGORISED_COMMAND(patchman,fileManagerSave,"Save a file via the file manager","<file name> <text to save>")
{
if (args.size()!=2)
return false;
CSString fileName= args[0];
CMemStream data;
data.serialBuffer((uint8*)(&args[1][0]),args[1].size());
CFileManager::getInstance().save(fileName,data);
return true;
}
NLMISC_CATEGORISED_COMMAND(patchman,testCFileSpec,"test the CFileSpec class","")
{
if (args.size()!=0)
return false;
{
nlinfo("test a");
CFileSpec fsa("foo/bar");
nlassert(fsa.matches("foo/bar"));
nlassert(!fsa.matches("foo/bard"));
nlassert(!fsa.matches("food/bar"));
nlassert(!fsa.matches("foo/d/bar"));
nlassert(!fsa.nameIsWild());
nlassert(!fsa.pathIsWild());
nlassert(fsa.nameMatches("bar"));
nlassert(fsa.pathMatches("foo/"));
nlassert(!fsa.nameMatches("bard"));
nlassert(!fsa.pathMatches("food/"));
nlassert(!fsa.pathMatches("foo/d/"));
nlassert(fsa.nameSpec()=="bar");
nlassert(fsa.pathSpec()=="foo/");
nlassert(fsa.toString()=="foo/bar");
}
{
nlinfo("test b");
CFileSpec fsb("foo/bar*");
nlassert(fsb.matches("foo/bar"));
nlassert(fsb.matches("foo/bard"));
nlassert(!fsb.matches("food/bar"));
nlassert(!fsb.matches("foo/d/bar"));
nlassert(fsb.nameIsWild());
nlassert(!fsb.pathIsWild());
nlassert(fsb.nameMatches("bard"));
nlassert(fsb.pathMatches("foo/"));
nlassert(fsb.nameMatches("bard"));
nlassert(!fsb.pathMatches("food/"));
nlassert(!fsb.pathMatches("foo/d/"));
nlassert(fsb.nameSpec()=="bar*");
nlassert(fsb.pathSpec()=="foo/");
nlassert(fsb.toString()=="foo/bar*");
}
{
nlinfo("test c");
CFileSpec fsc("foo*/bar");
nlassert(fsc.matches("foo/bar"));
nlassert(!fsc.matches("foo/bard"));
nlassert(fsc.matches("food/bar"));
nlassert(fsc.matches("foo/d/bar"));
nlassert(!fsc.nameIsWild());
nlassert(fsc.pathIsWild());
nlassert(fsc.nameMatches("bar"));
nlassert(fsc.pathMatches("foo/"));
nlassert(!fsc.nameMatches("bard"));
nlassert(fsc.pathMatches("food/"));
nlassert(fsc.pathMatches("foo/d/"));
nlassert(fsc.nameSpec()=="bar");
nlassert(fsc.pathSpec()=="foo*/");
nlassert(fsc.toString()=="foo*/bar");
}
{
nlinfo("test d");
CFileSpec fsd("foo*/bar*");
nlassert(fsd.matches("foo/bar"));
nlassert(fsd.matches("foo/bard"));
nlassert(fsd.matches("food/bar"));
nlassert(fsd.matches("foo/d/bar"));
nlassert(fsd.nameIsWild());
nlassert(fsd.pathIsWild());
nlassert(fsd.nameMatches("bar"));
nlassert(fsd.pathMatches("foo/"));
nlassert(fsd.nameMatches("bard"));
nlassert(fsd.pathMatches("food/"));
nlassert(fsd.pathMatches("foo/d/"));
nlassert(fsd.nameSpec()=="bar*");
nlassert(fsd.pathSpec()=="foo*/");
nlassert(fsd.toString()=="foo*/bar*");
}
return true;
}
class CFileSpec
{
public:
// ctors
CFileSpec();
CFileSpec(const NLMISC::CSString& fileSpec);
// test a complete match (filename and path)
bool matches(const NLMISC::CSString& fullFileName) const;
// test whether the given file name matches the filename part of the filespec
// note - the supplied filename should already have been stripped of its path
bool nameMatches(const NLMISC::CSString& fileName) const;
// test whether the given path matches the path part of the filespec
// note - the supplied path should not have an attached file name
bool pathMatches(const NLMISC::CSString& path) const;
// retrieve the filespec as a single string (for serialising, etc)
NLMISC::CSString toString() const;
// accessors
const NLMISC::CSString& nameSpec() const;
const NLMISC::CSString& pathSpec() const;
bool nameIsWild() const;
bool pathIsWild() const;
private:
NLMISC::CSString _NameSpec;
NLMISC::CSString _PathSpec;
bool _NameIsWild; // true if _NameSpec contains wildcards ('*' or '?')
bool _PathIsWild; // true if _PathSpec contains wildcards ('*' or '?')
};
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