X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Fsupport%2FFileName.cpp;h=929c4165bebd541bead6ce6e7a6a61774e12f89d;hb=8d640dc77608bedddb5b00982c23665584f52d21;hp=f0489309d549ae44a61df42c888225eb23eadfe5;hpb=762c4eca5734b4d504ab28308a10d725a4790d5c;p=lyx.git

diff --git a/src/support/FileName.cpp b/src/support/FileName.cpp
index f0489309d5..929c4165be 100644
--- a/src/support/FileName.cpp
+++ b/src/support/FileName.cpp
@@ -17,7 +17,7 @@
 #include "support/filetools.h"
 #include "support/lassert.h"
 #include "support/lstrings.h"
-#include "support/qstring_helpers.h"
+#include "support/mutex.h"
 #include "support/os.h"
 #include "support/Package.h"
 #include "support/qstring_helpers.h"
@@ -31,7 +31,6 @@
 #include <QTime>
 
 #include <boost/crc.hpp>
-#include <boost/scoped_array.hpp>
 
 #include <algorithm>
 #include <iterator>
@@ -217,9 +216,26 @@ void FileName::erase()
 }
 
 
-bool FileName::copyTo(FileName const & name) const
+bool FileName::copyTo(FileName const & name, bool keepsymlink) const
 {
-	LYXERR(Debug::FILES, "Copying " << name);
+	FileNameSet visited;
+	return copyTo(name, keepsymlink, visited);
+}
+
+
+bool FileName::copyTo(FileName const & name, bool keepsymlink,
+                      FileName::FileNameSet & visited) const
+{
+	LYXERR(Debug::FILES, "Copying " << name << " keep symlink: " << keepsymlink);
+	if (keepsymlink && name.isSymLink()) {
+		visited.insert(*this);
+		FileName const target(fromqstr(name.d->fi.symLinkTarget()));
+		if (visited.find(target) != visited.end()) {
+			LYXERR(Debug::FILES, "Found circular symlink: " << target);
+			return false;
+		}
+		return copyTo(target, true);
+	}
 	QFile::remove(name.d->fi.absoluteFilePath());
 	bool success = QFile::copy(d->fi.absoluteFilePath(), name.d->fi.absoluteFilePath());
 	if (!success)
@@ -231,6 +247,7 @@ bool FileName::copyTo(FileName const & name) const
 
 bool FileName::renameTo(FileName const & name) const
 {
+	LYXERR(Debug::FILES, "Renaming " << name << " as " << *this);
 	bool success = QFile::rename(d->fi.absoluteFilePath(), name.d->fi.absoluteFilePath());
 	if (!success)
 		LYXERR0("Could not rename file " << *this << " to " << name);
@@ -240,6 +257,7 @@ bool FileName::renameTo(FileName const & name) const
 
 bool FileName::moveTo(FileName const & name) const
 {
+	LYXERR(Debug::FILES, "Moving " << name << " to " << *this);
 	QFile::remove(name.d->fi.absoluteFilePath());
 
 	bool success = QFile::rename(d->fi.absoluteFilePath(),
@@ -300,6 +318,9 @@ bool FileName::isSymLink() const
 }
 
 
+//QFileInfo caching info might fool this test if file was changed meanwhile.
+//refresh() helps, but we don't want to put it blindly here, because it might
+//trigger slowdown on networked file systems.
 bool FileName::isFileEmpty() const
 {
 	LASSERT(!empty(), return true);
@@ -435,40 +456,6 @@ FileNameList FileName::dirList(string const & ext) const
 }
 
 
-static string createTempFile(QString const & mask)
-{
-	// FIXME: This is not safe. QTemporaryFile creates a file in open(),
-	//        but the file is deleted when qt_tmp goes out of scope.
-	//        Therefore the next call to createTempFile() may create the
-	//        same file again. To make this safe the QTemporaryFile object
-	//        needs to be kept for the whole life time of the temp file name.
-	//        This can be achieved by using the TempFile class.
-	QTemporaryFile qt_tmp(mask + ".XXXXXXXXXXXX");
-	if (qt_tmp.open()) {
-		string const temp_file = fromqstr(qt_tmp.fileName());
-		LYXERR(Debug::FILES, "Temporary file `" << temp_file << "' created.");
-		return temp_file;
-	}
-	LYXERR(Debug::FILES, "Unable to create temporary file with following template: "
-		<< qt_tmp.fileTemplate());
-	return string();
-}
-
-
-FileName FileName::tempName(FileName const & temp_dir, string const & mask)
-{
-	QFileInfo tmp_fi(QDir(temp_dir.d->fi.absoluteFilePath()), toqstr(mask));
-	LYXERR(Debug::FILES, "Temporary file in " << tmp_fi.absoluteFilePath());
-	return FileName(createTempFile(tmp_fi.absoluteFilePath()));
-}
-
-
-FileName FileName::tempName(string const & mask)
-{
-	return tempName(package().temp_dir(), mask);
-}
-
-
 FileName FileName::getcwd()
 {
 	// return makeAbsPath("."); would create an infinite loop
@@ -505,6 +492,12 @@ bool FileName::chdir() const
 }
 
 
+bool FileName::link(FileName const & name) const
+{
+	return QFile::link(toqstr(absFileName()), toqstr(name.absFileName()));
+}
+
+
 unsigned long checksum_ifstream_fallback(char const * file)
 {
 	unsigned long result = 0;
@@ -925,10 +918,15 @@ string DocFileName::outputFileName(string const & path) const
 
 string DocFileName::mangledFileName(string const & dir) const
 {
+	// Concurrent access to these variables is possible.
+
 	// We need to make sure that every DocFileName instance for a given
 	// filename returns the same mangled name.
 	typedef map<string, string> MangledMap;
 	static MangledMap mangledNames;
+	static Mutex mangledMutex;
+	// this locks both access to mangledNames and counter below 
+	Mutex::Locker lock(&mangledMutex);
 	MangledMap::const_iterator const it = mangledNames.find(absFileName());
 	if (it != mangledNames.end())
 		return (*it).second;