src/vc-backend.C

   1 #include <config.h>
   2
   3 #ifdef __GNUG__
   4 #pragma implementation
   5 #endif
   6
   7 #include "vc-backend.h"
   8 #include "debug.h"
   9 #include "buffer.h"
  10 #include "BufferView.h"
  11 #include "frontends/LyXView.h"
  12 #include "lyxfunc.h"
  13
  14 #include "support/FileInfo.h"
  15 #include "support/path.h"
  16 #include "support/filetools.h"
  17 #include "support/lstrings.h"
  18 #include "support/systemcall.h"
  19
  20 #include <boost/regex.hpp>
  21
  22 #include <fstream>
  23
  24 using std::endl;
  25 using std::ifstream;
  26 using std::getline;
  27 using boost::regex;
  28 using boost::regex_match;
  29 using boost::smatch;
  30
  31 int VCS::doVCCommand(string const & cmd, string const & path)
  32 {
  33         lyxerr[Debug::LYXVC] << "doVCCommand: " << cmd << endl;
  34         Systemcall one;
  35         Path p(path);
  36         int const ret = one.startscript(Systemcall::Wait, cmd);
  37         return ret;
  38 }
  39
  40
  41 RCS::RCS(string const & m)
  42 {
  43         master_ = m;
  44         scanMaster();
  45 }
  46
  47
  48 string const RCS::find_file(string const & file)
  49 {
  50         string tmp(file);
  51         // Check if *,v exists.
  52         tmp += ",v";
  53         FileInfo f;
  54         lyxerr[Debug::LYXVC] << "Checking if file is under rcs: "
  55                              << tmp << endl;
  56         if (f.newFile(tmp).readable()) {
  57                 lyxerr[Debug::LYXVC] << "Yes " << file
  58                                      << " is under rcs." << endl;
  59                 return tmp;
  60         } else {
  61                 // Check if RCS/*,v exists.
  62                 tmp = AddName(AddPath(OnlyPath(file), "RCS"), file);
  63                 tmp += ",v";
  64                 lyxerr[Debug::LYXVC] << "Checking if file is under rcs: "
  65                                      << tmp << endl;
  66                 if (f.newFile(tmp).readable()) {
  67                         lyxerr[Debug::LYXVC] << "Yes " << file
  68                                              << " it is under rcs."<< endl;
  69                         return tmp;
  70                 }
  71         }
  72         return string();
  73 }
  74
  75
  76 void RCS::retrieve(string const & file)
  77 {
  78         lyxerr[Debug::LYXVC] << "LyXVC::RCS: retrieve.\n\t" << file << endl;
  79         VCS::doVCCommand("co -q -r \""
  80                          + file + "\"",
  81                          string());
  82 }
  83
  84
  85 void RCS::scanMaster()
  86 {
  87         lyxerr[Debug::LYXVC] << "LyXVC::RCS: scanMaster." << endl;
  88
  89         ifstream ifs(master_.c_str());
  90
  91         string token;
  92         bool read_enough = false;
  93
  94         while (!read_enough && ifs >> token) {
  95                 lyxerr[Debug::LYXVC]
  96                         << "LyXVC::scanMaster: current lex text: `"
  97                         << token << "'" << endl;
  98
  99                 if (token.empty())
 100                         continue;
 101                 else if (token == "head") {
 102                         // get version here
 103                         string tmv;
 104                         ifs >> tmv;
 105                         tmv = strip(tmv, ';');
 106                         version_ = tmv;
 107                         lyxerr[Debug::LYXVC] << "LyXVC: version found to be "
 108                                              << tmv << endl;
 109                 } else if (contains(token, "access")
 110                            || contains(token, "symbols")
 111                            || contains(token, "strict")) {
 112                         // nothing
 113                 } else if (contains(token, "locks")) {
 114                         // get locker here
 115                         if (contains(token, ";")) {
 116                                 locker_ = "Unlocked";
 117                                 vcstatus = UNLOCKED;
 118                                 continue;
 119                         }
 120                         string tmpt;
 121                         string s1;
 122                         string s2;
 123                         do {
 124                                 ifs >> tmpt;
 125                                 s1 = strip(tmpt, ';');
 126                                 // tmp is now in the format <user>:<version>
 127                                 s1 = split(s1, s2, ':');
 128                                 // s2 is user, and s1 is version
 129                                 if (s1 == version_) {
 130                                         locker_ = s2;
 131                                         vcstatus = LOCKED;
 132                                         break;
 133                                 }
 134                         } while (!contains(tmpt, ";"));
 135
 136                 } else if (token == "comment") {
 137                         // we don't need to read any further than this.
 138                         read_enough = true;
 139                 } else {
 140                         // unexpected
 141                         lyxerr[Debug::LYXVC]
 142                                 << "LyXVC::scanMaster(): unexpected token"
 143                                 << endl;
 144                 }
 145         }
 146 }
 147
 148
 149 void RCS::registrer(string const & msg)
 150 {
 151         string cmd = "ci -q -u -i -t-\"";
 152         cmd += msg;
 153         cmd += "\" \"";
 154         cmd += OnlyFilename(owner_->fileName());
 155         cmd += "\"";
 156         doVCCommand(cmd, owner_->filePath());
 157         owner_->getUser()->owner()->getLyXFunc()->dispatch(LFUN_MENURELOAD);
 158 }
 159
 160
 161 void RCS::checkIn(string const & msg)
 162 {
 163         doVCCommand("ci -q -u -m\"" + msg + "\" \""
 164                     + OnlyFilename(owner_->fileName()) + "\"", owner_->filePath());
 165         owner_->getUser()->owner()->getLyXFunc()->dispatch(LFUN_MENURELOAD);
 166 }
 167
 168
 169 void RCS::checkOut()
 170 {
 171         owner_->markLyxClean();
 172         doVCCommand("co -q -l \""
 173                     + OnlyFilename(owner_->fileName()) + "\"", owner_->filePath());
 174         owner_->getUser()->owner()->getLyXFunc()->dispatch(LFUN_MENURELOAD);
 175 }
 176
 177
 178 void RCS::revert()
 179 {
 180         doVCCommand("co -f -u" + version() + " \""
 181                     + OnlyFilename(owner_->fileName()) + "\"", owner_->filePath());
 182         // We ignore changes and just reload!
 183         owner_->markLyxClean();
 184         owner_->getUser()->owner()
 185                 ->getLyXFunc()->dispatch(LFUN_MENURELOAD);
 186 }
 187
 188
 189 void RCS::undoLast()
 190 {
 191         lyxerr[Debug::LYXVC] << "LyXVC: undoLast" << endl;
 192         doVCCommand("rcs -o" + version() + " \""
 193                     + OnlyFilename(owner_->fileName()) + "\"",
 194                     owner_->filePath());
 195 }
 196
 197
 198 void RCS::getLog(string const & tmpf)
 199 {
 200         doVCCommand("rlog \""
 201                     + OnlyFilename(owner_->fileName()) + "\" > " + tmpf, owner_->filePath());
 202 }
 203
 204
 205 CVS::CVS(string const & m, string const & f)
 206 {
 207         master_ = m;
 208         file_ = f;
 209         scanMaster();
 210 }
 211
 212
 213 string const CVS::find_file(string const & file)
 214 {
 215         // First we look for the CVS/Entries in the same dir
 216         // where we have file.
 217         string const dir = OnlyPath(file) + "/CVS/Entries";
 218         string const tmpf = "/" + OnlyFilename(file) + "/";
 219         lyxerr[Debug::LYXVC] << "LyXVC: checking in `" << dir
 220                              << "' for `" << tmpf << "'" << endl;
 221         FileInfo const f(dir);
 222         if (f.readable()) {
 223                 // Ok we are at least in a CVS dir. Parse the CVS/Entries
 224                 // and see if we can find this file. We do a fast and
 225                 // dirty parse here.
 226                 ifstream ifs(dir.c_str());
 227                 string line;
 228                 while (getline(ifs, line)) {
 229                         lyxerr[Debug::LYXVC] << "\tEntries: " << line << endl;
 230                         if (contains(line, tmpf)) return dir;
 231                 }
 232         }
 233         return string();
 234 }
 235
 236
 237 void CVS::scanMaster()
 238 {
 239         lyxerr[Debug::LYXVC] << "LyXVC::CVS: scanMaster. \n     Checking: "
 240                              << master_ << endl;
 241         // Ok now we do the real scan...
 242         ifstream ifs(master_.c_str());
 243         string tmpf = "/" + OnlyFilename(file_) + "/";
 244         lyxerr[Debug::LYXVC] << "\tlooking for `" << tmpf << "'" << endl;
 245         string line;
 246         regex reg("/(.*)/(.*)/(.*)/(.*)/(.*)");
 247         while (getline(ifs, line)) {
 248                 lyxerr[Debug::LYXVC] << "\t  line: " << line << endl;
 249                 if (contains(line, tmpf)) {
 250                         // Ok extract the fields.
 251                         smatch sm;
 252                         regex_match(line, sm, reg);
 253
 254                         //sm[0]; // whole matched string
 255                         //sm[1]; // filename
 256                         version_ = sm[2];
 257                         string file_date = sm[3];
 258                         //sm[4]; // options
 259                         //sm[5]; // tag or tagdate
 260                         FileInfo fi(file_);
 261                         // FIXME: must double check file is stattable/existing
 262                         time_t mod = fi.getModificationTime();
 263                         string mod_date = strip(asctime(gmtime(&mod)), '\n');
 264                         lyxerr[Debug::LYXVC]
 265                                 <<  "Date in Entries: `" << file_date
 266                                 << "'\nModification date of file: `"
 267                                 << mod_date << "'" << endl;
 268                         if (file_date == mod_date) {
 269                                 locker_ = "Unlocked";
 270                                 vcstatus = UNLOCKED;
 271                         } else {
 272                                 // Here we should also to some more checking
 273                                 // to see if there are conflicts or not.
 274                                 locker_ = "Locked";
 275                                 vcstatus = LOCKED;
 276                         }
 277                         break;
 278                 }
 279         }
 280 }
 281
 282
 283 void CVS::registrer(string const & msg)
 284 {
 285         doVCCommand("cvs -q add -m \"" + msg + "\" \""
 286                     + OnlyFilename(owner_->fileName()) + "\"", owner_->filePath());
 287         owner_->getUser()->owner()->getLyXFunc()->dispatch(LFUN_MENURELOAD);
 288 }
 289
 290
 291 void CVS::checkIn(string const & msg)
 292 {
 293         doVCCommand("cvs -q commit -m \"" + msg + "\" \""
 294                     + OnlyFilename(owner_->fileName()) + "\"",
 295                     owner_->filePath());
 296         owner_->getUser()->owner()->getLyXFunc()->dispatch(LFUN_MENURELOAD);
 297 }
 298
 299
 300 void CVS::checkOut()
 301 {
 302         // cvs update or perhaps for cvs this should be a noop
 303         lyxerr << "Sorry not implemented." << endl;
 304 }
 305
 306
 307 void CVS::revert()
 308 {
 309         // Reverts to the version in CVS repository and
 310         // gets the updated version from the repository.
 311         string const fil = OnlyFilename(owner_->fileName());
 312
 313         doVCCommand("rm -f \"" + fil + "\"; cvs update \"" + fil + "\"",
 314                     owner_->filePath());
 315         owner_->markLyxClean();
 316         owner_->getUser()->owner()
 317                 ->getLyXFunc()->dispatch(LFUN_MENURELOAD);
 318 }
 319
 320
 321 void CVS::undoLast()
 322 {
 323         // merge the current with the previous version
 324         // in a reverse patch kind of way, so that the
 325         // result is to revert the last changes.
 326         lyxerr << "Sorry not implemented." << endl;
 327 }
 328
 329
 330 void CVS::getLog(string const & tmpf)
 331 {
 332         doVCCommand("cvs log \""
 333                     + OnlyFilename(owner_->fileName()) + "\" > " + tmpf,
 334                     owner_->filePath());
 335 }