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Another attempt at #8295.
This bug occur only at certain Qt versions and systems and we do not really understand what is going on. Quoting Stephan - the parent path of "." e.g. never should be ".". The inconsistency between the name of FileName and the internal QFileInfo state looks very dangerous.
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@ -100,12 +100,13 @@ bool VCS::makeRCSRevision(string const &version, string &revis) const
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bool VCS::checkparentdirs(FileName const & file, std::string const & pathname)
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{
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FileName dirname = FileName(file.absFileName()).onlyPath();
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FileName dirname = file.onlyPath();
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FileName tocheck = FileName(addName(dirname.absFileName(),pathname));
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LYXERR(Debug::LYXVC, "check file: " << tocheck.absFileName());
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bool result = tocheck.exists();
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while ( !result && !dirname.empty() ) {
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dirname = dirname.parentPath();
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//this construct because of #8295
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dirname = FileName(dirname.absFileName()).parentPath();
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LYXERR(Debug::LYXVC, "check directory: " << dirname.absFileName());
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tocheck = FileName(addName(dirname.absFileName(),pathname));
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result = tocheck.exists();
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