// mklink /D "C:\existingFolder\Link" "C:\Target"
// mklink /D "C:\existingFolder\Link\" "C:\Target\"
// The ending slash is optional. The parent directory of the link must exist.
bool BrainUtil::MakeLink(const CString& link, const CString& target, bool bIsDirectory/* = true*/)
{
CString temLink = link;
CString temTarget = target;
// delete the last '\'
WCHAR lastChar = temLink.GetAt(temLink.GetLength() - 1);
if(lastChar == _T('\\'))
temLink.Truncate(temLink.GetLength() - 1);
if(DoesFileorFolderExist(temLink))
{
// Delete the link
// For links to directories: rmdir linkname
// For links to files: del linkname
CString tmpCmd;
tmpCmd.Format(_T("rmdir \"%s\""), temLink.GetBuffer());
RunSystemCommand(tmpCmd);
if(DoesFileorFolderExist(temLink)) // If still exist it might be a file link
{
tmpCmd.Format(_T("del \"%s\""), temLink.GetBuffer());
RunSystemCommand(tmpCmd);
}
if(DoesFileorFolderExist(temLink))// check again
{
DATA_ASSERT(false);
return false;
}
}
else
{
CString folderFullName = GetParentFolderName(link);
if(!DoesFileorFolderExist(folderFullName))
{
bool bRet = CreateFolder(folderFullName); // Create the parent directory tree.
if(!bRet)
return false;
}
}
CString cmd;
if(bIsDirectory)
cmd.Format(_T("mklink /D \"%s\" \"%s\""), temLink.GetBuffer(), temTarget.GetBuffer());
else
cmd.Format(_T("mklink \"%s\" \"%s\""), temLink.GetBuffer(), temTarget.GetBuffer());
int ret = _wsystem(cmd.GetBuffer());
DATA_ASSERT(0 == ret);
bool bSucc = DoesFileorFolderExist(link);
return bSucc;
}
// This tries to run mkdir with the -p argument, throwing an exception if it
// could not.
inline void FilePlaceholderManager::EnsureDirectoryExists(
std::string const& directoryName )
{
std::stringstream commandBuilder;
commandBuilder << "mkdir -p " << directoryName;
RunSystemCommand( commandBuilder.str() );
}
// This deletes the file with the given name, throwing an exception if it
// cannot.
inline void FilePlaceholderManager::DeleteFile( std::string const& fileName )
{
std::stringstream commandBuilder;
commandBuilder << "rm " << fileName;
RunSystemCommand( commandBuilder.str() );
}