mirror of
https://git.lyx.org/repos/lyx.git
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236 lines
5.1 KiB
C++
236 lines
5.1 KiB
C++
/**
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* \file DepTable.cpp
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author Lars Gullik Bjønnes
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* \author Jean-Marc Lasgouttes
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* \author Ben Stanley
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*
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* Full author contact details are available in file CREDITS.
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*/
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#include <config.h>
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#include "DepTable.h"
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#include "support/debug.h"
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#include "support/FileName.h"
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#include "support/lstrings.h"
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#include "support/lyxtime.h"
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#include <fstream>
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using namespace std;
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using namespace lyx::support;
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namespace lyx {
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inline
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bool DepTable::dep_info::changed() const
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{
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return crc_prev != crc_cur && crc_cur != 0;
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}
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void DepTable::insert(FileName const & f, bool upd)
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{
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if (deplist.find(f) == deplist.end()) {
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dep_info di;
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di.crc_prev = 0;
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if (upd && f.exists()) {
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LYXERR(Debug::DEPEND, " CRC...");
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di.crc_cur = f.checksum();
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LYXERR(Debug::DEPEND, "done.");
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di.mtime_cur = f.lastModified();
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} else {
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di.crc_cur = 0;
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di.mtime_cur = 0;
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}
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deplist[f] = di;
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} else {
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LYXERR(Debug::DEPEND, " Already in DepTable");
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}
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}
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void DepTable::update()
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{
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LYXERR(Debug::DEPEND, "Updating DepTable...");
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time_t const start_time = current_time();
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DepList::iterator itr = deplist.begin();
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while (itr != deplist.end()) {
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FileName const & fn = itr->first;
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dep_info &di = itr->second;
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if (fn.exists()) {
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if (di.mtime_cur == fn.lastModified()) {
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di.crc_prev = di.crc_cur;
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LYXERR(Debug::DEPEND, itr->first << " same mtime");
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} else {
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di.crc_prev = di.crc_cur;
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LYXERR(Debug::DEPEND, itr->first << " CRC... ");
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di.crc_cur = fn.checksum();
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LYXERR(Debug::DEPEND, "done");
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}
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} else {
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// file doesn't exist
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// remove stale files - if it's re-created, it
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// will be re-inserted by deplog.
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LYXERR(Debug::DEPEND, fn << " doesn't exist. removing from DepTable.");
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DepList::iterator doomed = itr++;
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deplist.erase(doomed);
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continue;
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}
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if (lyxerr.debugging(Debug::DEPEND)) {
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if (di.changed())
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lyxerr << " +";
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lyxerr << endl;
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}
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++itr;
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}
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time_t const time_sec = current_time() - start_time;
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LYXERR(Debug::DEPEND, "Finished updating DepTable ("
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<< long(time_sec) << " sec).");
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}
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bool DepTable::sumchange() const
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{
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DepList::const_iterator cit = deplist.begin();
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DepList::const_iterator end = deplist.end();
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for (; cit != end; ++cit) {
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if (cit->second.changed())
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return true;
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}
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return false;
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}
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bool DepTable::haschanged(FileName const & fil) const
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{
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DepList::const_iterator cit = deplist.find(fil);
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if (cit != deplist.end()) {
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if (cit->second.changed())
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return true;
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}
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return false;
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}
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bool DepTable::extchanged(string const & ext) const
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{
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DepList::const_iterator cit = deplist.begin();
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DepList::const_iterator end = deplist.end();
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for (; cit != end; ++cit) {
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if (suffixIs(cit->first.absFileName(), ext)) {
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if (cit->second.changed())
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return true;
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}
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}
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return false;
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}
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bool DepTable::ext_exist(string const & ext) const
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{
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DepList::const_iterator cit = deplist.begin();
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DepList::const_iterator end = deplist.end();
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for (; cit != end; ++cit) {
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if (suffixIs(cit->first.absFileName(), ext))
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return true;
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}
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return false;
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}
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bool DepTable::exist(FileName const & fil) const
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{
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return deplist.find(fil) != deplist.end();
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}
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void DepTable::remove_files_with_extension(string const & suf)
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{
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DepList::iterator cit = deplist.begin();
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DepList::iterator end = deplist.end();
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while (cit != end) {
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if (suffixIs(cit->first.absFileName(), suf)) {
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// Can't erase the current iterator, but we
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// can increment and then erase.
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// Deplist is a map so only the erased
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// iterator is invalidated.
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DepList::iterator doomed = cit++;
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deplist.erase(doomed);
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continue;
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}
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++cit;
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}
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}
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void DepTable::remove_file(FileName const & filename)
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{
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DepList::iterator cit = deplist.begin();
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DepList::iterator end = deplist.end();
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while (cit != end) {
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if (cit->first == filename) {
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// Can't erase the current iterator, but we
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// can increment and then erase.
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// deplist is a map so only the erased
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// iterator is invalidated.
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DepList::iterator doomed = cit++;
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deplist.erase(doomed);
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continue;
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}
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++cit;
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}
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}
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void DepTable::write(FileName const & f) const
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{
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ofstream ofs(f.toFilesystemEncoding().c_str());
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DepList::const_iterator cit = deplist.begin();
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DepList::const_iterator end = deplist.end();
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for (; cit != end; ++cit) {
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// Store the second (most recently calculated)
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// CRC value.
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// The older one is effectively set to 0 upon re-load.
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LYXERR(Debug::DEPEND, "Write dep: "
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<< cit->second.crc_cur << ' '
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<< cit->second.mtime_cur << ' '
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<< cit->first);
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ofs << cit->second.crc_cur << ' '
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<< cit->second.mtime_cur << ' '
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<< cit->first << endl;
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}
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}
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bool DepTable::read(FileName const & f)
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{
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ifstream ifs(f.toFilesystemEncoding().c_str());
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string nome;
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dep_info di;
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// This doesn't change through the loop.
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di.crc_prev = 0;
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while (ifs >> di.crc_cur >> di.mtime_cur && getline(ifs, nome)) {
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nome = ltrim(nome);
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LYXERR(Debug::DEPEND, "Read dep: "
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<< di.crc_cur << ' ' << di.mtime_cur << ' ' << nome);
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deplist[FileName(nome)] = di;
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}
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return !deplist.empty();
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}
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} // namespace lyx
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