lyx_mirror/src/vc-backend.C

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/**
* \file vc-backend.C
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Lars Gullik Bj<EFBFBD>nnes
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "vc-backend.h"
#include "debug.h"
#include "buffer.h"
#include "support/path.h"
#include "support/filetools.h"
#include "support/fs_extras.h"
#include "support/lstrings.h"
#include "support/systemcall.h"
#include <boost/filesystem/operations.hpp>
#include <boost/regex.hpp>
#include <fstream>
namespace lyx {
using support::addName;
using support::addPath;
using support::contains;
using support::onlyFilename;
using support::onlyPath;
using support::quoteName;
using support::rtrim;
using support::split;
using support::Systemcall;
using boost::regex;
using boost::regex_match;
using boost::smatch;
#ifndef CXX_GLOBAL_CSTD
using std::asctime;
using std::gmtime;
#endif
using std::endl;
using std::getline;
using std::string;
using std::ifstream;
namespace fs = boost::filesystem;
int VCS::doVCCommand(string const & cmd, string const & path)
{
lyxerr[Debug::LYXVC] << "doVCCommand: " << cmd << endl;
Systemcall one;
support::Path p(path);
int const ret = one.startscript(Systemcall::Wait, cmd);
return ret;
}
RCS::RCS(string const & m)
{
master_ = m;
scanMaster();
}
string const RCS::find_file(string const & file)
{
string tmp = file;
// Check if *,v exists.
tmp += ",v";
lyxerr[Debug::LYXVC] << "Checking if file is under rcs: "
<< tmp << endl;
if (fs::is_readable(tmp)) {
lyxerr[Debug::LYXVC] << "Yes " << file
<< " is under rcs." << endl;
return tmp;
} else {
// Check if RCS/*,v exists.
tmp = addName(addPath(onlyPath(file), "RCS"), file);
tmp += ",v";
lyxerr[Debug::LYXVC] << "Checking if file is under rcs: "
<< tmp << endl;
if (fs::is_readable(tmp)) {
lyxerr[Debug::LYXVC] << "Yes " << file
<< " it is under rcs."<< endl;
return tmp;
}
}
return string();
}
void RCS::retrieve(string const & file)
{
lyxerr[Debug::LYXVC] << "LyXVC::RCS: retrieve.\n\t" << file << endl;
VCS::doVCCommand("co -q -r " + quoteName(file),
string());
}
void RCS::scanMaster()
{
lyxerr[Debug::LYXVC] << "LyXVC::RCS: scanMaster." << endl;
ifstream ifs(master_.c_str());
string token;
bool read_enough = false;
while (!read_enough && ifs >> token) {
lyxerr[Debug::LYXVC]
<< "LyXVC::scanMaster: current lex text: `"
<< token << '\'' << endl;
if (token.empty())
continue;
else if (token == "head") {
// get version here
string tmv;
ifs >> tmv;
tmv = rtrim(tmv, ";");
version_ = tmv;
lyxerr[Debug::LYXVC] << "LyXVC: version found to be "
<< tmv << endl;
} else if (contains(token, "access")
|| contains(token, "symbols")
|| contains(token, "strict")) {
// nothing
} else if (contains(token, "locks")) {
// get locker here
if (contains(token, ';')) {
locker_ = "Unlocked";
vcstatus = UNLOCKED;
continue;
}
string tmpt;
string s1;
string s2;
do {
ifs >> tmpt;
s1 = rtrim(tmpt, ";");
// tmp is now in the format <user>:<version>
s1 = split(s1, s2, ':');
// s2 is user, and s1 is version
if (s1 == version_) {
locker_ = s2;
vcstatus = LOCKED;
break;
}
} while (!contains(tmpt, ';'));
} else if (token == "comment") {
// we don't need to read any further than this.
read_enough = true;
} else {
// unexpected
lyxerr[Debug::LYXVC]
<< "LyXVC::scanMaster(): unexpected token"
<< endl;
}
}
}
void RCS::registrer(string const & msg)
{
string cmd = "ci -q -u -i -t-\"";
cmd += msg;
cmd += "\" ";
cmd += quoteName(onlyFilename(owner_->fileName()));
doVCCommand(cmd, owner_->filePath());
}
void RCS::checkIn(string const & msg)
{
doVCCommand("ci -q -u -m\"" + msg + "\" "
+ quoteName(onlyFilename(owner_->fileName())),
owner_->filePath());
}
void RCS::checkOut()
{
owner_->markClean();
doVCCommand("co -q -l " + quoteName(onlyFilename(owner_->fileName())),
owner_->filePath());
}
void RCS::revert()
{
doVCCommand("co -f -u" + version() + " "
+ quoteName(onlyFilename(owner_->fileName())),
owner_->filePath());
// We ignore changes and just reload!
owner_->markClean();
}
void RCS::undoLast()
{
lyxerr[Debug::LYXVC] << "LyXVC: undoLast" << endl;
doVCCommand("rcs -o" + version() + " "
+ quoteName(onlyFilename(owner_->fileName())),
owner_->filePath());
}
void RCS::getLog(string const & tmpf)
{
doVCCommand("rlog " + quoteName(onlyFilename(owner_->fileName()))
+ " > " + tmpf,
owner_->filePath());
}
CVS::CVS(string const & m, string const & f)
{
master_ = m;
file_ = f;
scanMaster();
}
string const CVS::find_file(string const & file)
{
// First we look for the CVS/Entries in the same dir
// where we have file.
string const dir = onlyPath(file) + "/CVS/Entries";
string const tmpf = "/" + onlyFilename(file) + "/";
lyxerr[Debug::LYXVC] << "LyXVC: checking in `" << dir
<< "' for `" << tmpf << '\'' << endl;
if (fs::is_readable(dir)) {
// Ok we are at least in a CVS dir. Parse the CVS/Entries
// and see if we can find this file. We do a fast and
// dirty parse here.
ifstream ifs(dir.c_str());
string line;
while (getline(ifs, line)) {
lyxerr[Debug::LYXVC] << "\tEntries: " << line << endl;
if (contains(line, tmpf)) return dir;
}
}
return string();
}
void CVS::scanMaster()
{
lyxerr[Debug::LYXVC] << "LyXVC::CVS: scanMaster. \n Checking: "
<< master_ << endl;
// Ok now we do the real scan...
ifstream ifs(master_.c_str());
string tmpf = "/" + onlyFilename(file_) + "/";
lyxerr[Debug::LYXVC] << "\tlooking for `" << tmpf << '\'' << endl;
string line;
static regex const reg("/(.*)/(.*)/(.*)/(.*)/(.*)");
while (getline(ifs, line)) {
lyxerr[Debug::LYXVC] << "\t line: " << line << endl;
if (contains(line, tmpf)) {
// Ok extract the fields.
smatch sm;
regex_match(line, sm, reg);
//sm[0]; // whole matched string
//sm[1]; // filename
version_ = sm.str(2);
string const file_date = sm.str(3);
//sm[4]; // options
//sm[5]; // tag or tagdate
// FIXME: must double check file is stattable/existing
time_t mod = fs::last_write_time(file_);
string mod_date = rtrim(asctime(gmtime(&mod)), "\n");
lyxerr[Debug::LYXVC]
<< "Date in Entries: `" << file_date
<< "'\nModification date of file: `"
<< mod_date << '\'' << endl;
if (file_date == mod_date) {
locker_ = "Unlocked";
vcstatus = UNLOCKED;
} else {
// Here we should also to some more checking
// to see if there are conflicts or not.
locker_ = "Locked";
vcstatus = LOCKED;
}
break;
}
}
}
void CVS::registrer(string const & msg)
{
doVCCommand("cvs -q add -m \"" + msg + "\" "
+ quoteName(onlyFilename(owner_->fileName())),
owner_->filePath());
}
void CVS::checkIn(string const & msg)
{
doVCCommand("cvs -q commit -m \"" + msg + "\" "
+ quoteName(onlyFilename(owner_->fileName())),
owner_->filePath());
}
void CVS::checkOut()
{
// cvs update or perhaps for cvs this should be a noop
lyxerr << "Sorry not implemented." << endl;
}
void CVS::revert()
{
// Reverts to the version in CVS repository and
// gets the updated version from the repository.
string const fil = quoteName(onlyFilename(owner_->fileName()));
doVCCommand("rm -f " + fil + "; cvs update " + fil,
owner_->filePath());
owner_->markClean();
}
void CVS::undoLast()
{
// merge the current with the previous version
// in a reverse patch kind of way, so that the
// result is to revert the last changes.
lyxerr << "Sorry not implemented." << endl;
}
void CVS::getLog(string const & tmpf)
{
doVCCommand("cvs log " + quoteName(onlyFilename(owner_->fileName()))
+ " > " + tmpf,
owner_->filePath());
}
} // namespace lyx