prevent "caching" of directories

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@17241 a592a061-630c-0410-9148-cb99ea01b6c8

diff --git a/src/ConverterCache.C b/src/ConverterCache.C
index 6441e651ebfc7b47bfc97a9c632c3bec6c66ed2e..9a0ca686f4a482794ca8208dbf89efadeb1e14fd 100644 (file)
--- a/src/ConverterCache.C
+++ b/src/ConverterCache.C
@@ -216,7 +216,8 @@ ConverterCache::~ConverterCache()
 void ConverterCache::add(FileName const & orig_from, string const & to_format,
                FileName const & converted_file) const
 {
-       if (!lyxrc.use_converter_cache)
+       if (!lyxrc.use_converter_cache || orig_from.empty() ||
+           converted_file.empty())
                return;
        lyxerr[Debug::FILES] << BOOST_CURRENT_FUNCTION << ' ' << orig_from
                             << ' ' << to_format << ' ' << converted_file
@@ -269,7 +270,7 @@ void ConverterCache::add(FileName const & orig_from, string const & to_format,
 void ConverterCache::remove(FileName const & orig_from,
                string const & to_format) const
 {
-       if (!lyxrc.use_converter_cache)
+       if (!lyxrc.use_converter_cache || orig_from.empty())
                return;
        lyxerr[Debug::FILES] << BOOST_CURRENT_FUNCTION << ' ' << orig_from
                             << ' ' << to_format << std::endl;
@@ -290,7 +291,7 @@ void ConverterCache::remove(FileName const & orig_from,
 bool ConverterCache::inCache(FileName const & orig_from,
                string const & to_format) const
 {
-       if (!lyxrc.use_converter_cache)
+       if (!lyxrc.use_converter_cache || orig_from.empty())
                return false;
        lyxerr[Debug::FILES] << BOOST_CURRENT_FUNCTION << ' ' << orig_from
                             << ' ' << to_format << std::endl;
@@ -330,7 +331,7 @@ FileName const & ConverterCache::cacheName(FileName const & orig_from,
 bool ConverterCache::copy(FileName const & orig_from, string const & to_format,
                FileName const & dest) const
 {
-       if (!lyxrc.use_converter_cache)
+       if (!lyxrc.use_converter_cache || orig_from.empty() || dest.empty())
                return false;
        lyxerr[Debug::FILES] << BOOST_CURRENT_FUNCTION << ' ' << orig_from
                             << ' ' << to_format << ' ' << dest << std::endl;