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 "LyXView.h"
  12 #include "lyxfunc.h"
  13
  14 #include "support/FileInfo.h"
  15 #include "support/LRegex.h"
  16 #include "support/LSubstring.h"
  17 #include "support/path.h"
  18 #include "support/filetools.h"
  19 #include "support/lstrings.h"
  20 #include "support/systemcall.h"
  21
  22 #include <fstream>
  23
  24 #ifndef CXX_GLOBAL_CSTD
  25 using std::asctime;
  26 using std::gmtime;
  27 #endif
  28
  29 using std::endl;
  30 using std::ifstream;
  31 using std::getline;
  32
  33 int VCS::doVCCommand(string const & cmd, string const & path)
  34 {
  35         lyxerr[Debug::LYXVC] << "doVCCommand: " << cmd << endl;
  36         Systemcall one;
  37         Path p(path);
  38         int const ret = one.startscript(Systemcall::Wait, cmd);
  39         return ret;
  40 }
  41
  42
  43 RCS::RCS(string const & m)
  44 {
  45         master_ = m;
  46         scanMaster();
  47 }
  48
  49
  50 string const RCS::find_file(string const & file)
  51 {
  52         string tmp(file);
  53         // Check if *,v exists.
  54         tmp += ",v";
  55         FileInfo f;
  56         lyxerr[Debug::LYXVC] << "Checking if file is under rcs: "
  57                              << tmp << endl;
  58         if (f.newFile(tmp).readable()) {
  59                 lyxerr[Debug::LYXVC] << "Yes " << file
  60                                      << " is under rcs." << endl;
  61                 return tmp;
  62         } else {
  63                 // Check if RCS/*,v exists.
  64                 tmp = AddName(AddPath(OnlyPath(file), "RCS"), file);
  65                 tmp += ",v";
  66                 lyxerr[Debug::LYXVC] << "Checking if file is under rcs: "
  67                                      << tmp << endl;
  68                 if (f.newFile(tmp).readable()) {
  69                         lyxerr[Debug::LYXVC] << "Yes " << file
  70                                              << " it is under rcs."<< endl;
  71                         return tmp;
  72                 }
  73         }
  74         return string();
  75 }
  76
  77
  78 void RCS::retrieve(string const & file)
  79 {
  80         lyxerr[Debug::LYXVC] << "LyXVC::RCS: retrieve.\n\t" << file << endl;
  81         VCS::doVCCommand("co -q -r \""
  82                          + file + "\"",
  83                          string());
  84 }
  85
  86
  87 void RCS::scanMaster()
  88 {
  89         lyxerr[Debug::LYXVC] << "LyXVC::RCS: scanMaster." << endl;
  90
  91         ifstream ifs(master_.c_str());
  92
  93         string token;
  94         bool read_enough = false;
  95
  96         while (!read_enough && ifs >> token) {
  97                 lyxerr[Debug::LYXVC]
  98                         << "LyXVC::scanMaster: current lex text: `"
  99                         << token << "'" << endl;
 100
 101                 if (token.empty())
 102                         continue;
 103                 else if (token == "head") {
 104                         // get version here
 105                         string tmv;
 106                         ifs >> tmv;
 107                         tmv = strip(tmv, ';');
 108                         version_ = tmv;
 109                         lyxerr[Debug::LYXVC] << "LyXVC: version found to be "
 110                                              << tmv << endl;
 111                 } else if (contains(token, "access")
 112                            || contains(token, "symbols")
 113                            || contains(token, "strict")) {
 114                         // nothing
 115                 } else if (contains(token, "locks")) {
 116                         // get locker here
 117                         if (contains(token, ";")) {
 118                                 locker_ = "Unlocked";
 119                                 vcstatus = UNLOCKED;
 120                                 continue;
 121                         }
 122                         string tmpt;
 123                         string s1;
 124                         string s2;
 125                         do {
 126                                 ifs >> tmpt;
 127                                 s1 = strip(tmpt, ';');
 128                                 // tmp is now in the format <user>:<version>
 129                                 s1 = split(s1, s2, ':');
 130                                 // s2 is user, and s1 is version
 131                                 if (s1 == version_) {
 132                                         locker_ = s2;
 133                                         vcstatus = LOCKED;
 134                                         break;
 135                                 }
 136                         } while (!contains(tmpt, ";"));
 137
 138                 } else if (token == "comment") {
 139                         // we don't need to read any further than this.
 140                         read_enough = true;
 141                 } else {
 142                         // unexpected
 143                         lyxerr[Debug::LYXVC]
 144                                 << "LyXVC::scanMaster(): unexpected token"
 145                                 << endl;
 146                 }
 147         }
 148 }
 149
 150
 151 void RCS::registrer(string const & msg)
 152 {
 153         string cmd = "ci -q -u -i -t-\"";
 154         cmd += msg;
 155         cmd += "\" \"";
 156         cmd += OnlyFilename(owner_->fileName());
 157         cmd += "\"";
 158         doVCCommand(cmd, owner_->filePath());
 159         owner_->getUser()->owner()->getLyXFunc()->dispatch(LFUN_MENURELOAD);
 160 }
 161
 162
 163 void RCS::checkIn(string const & msg)
 164 {
 165         doVCCommand("ci -q -u -m\"" + msg + "\" \""
 166                     + OnlyFilename(owner_->fileName()) + "\"", owner_->filePath());
 167         owner_->getUser()->owner()->getLyXFunc()->dispatch(LFUN_MENURELOAD);
 168 }
 169
 170
 171 void RCS::checkOut()
 172 {
 173         owner_->markLyxClean();
 174         doVCCommand("co -q -l \""
 175                     + OnlyFilename(owner_->fileName()) + "\"", owner_->filePath());
 176         owner_->getUser()->owner()->getLyXFunc()->dispatch(LFUN_MENURELOAD);
 177 }
 178
 179
 180 void RCS::revert()
 181 {
 182         doVCCommand("co -f -u" + version() + " \""
 183                     + OnlyFilename(owner_->fileName()) + "\"", owner_->filePath());
 184         // We ignore changes and just reload!
 185         owner_->markLyxClean();
 186         owner_->getUser()->owner()
 187                 ->getLyXFunc()->dispatch(LFUN_MENURELOAD);
 188 }
 189
 190
 191 void RCS::undoLast()
 192 {
 193         lyxerr[Debug::LYXVC] << "LyXVC: undoLast" << endl;
 194         doVCCommand("rcs -o" + version() + " \""
 195                     + OnlyFilename(owner_->fileName()) + "\"",
 196                     owner_->filePath());
 197 }
 198
 199
 200 void RCS::getLog(string const & tmpf)
 201 {
 202         doVCCommand("rlog \""
 203                     + OnlyFilename(owner_->fileName()) + "\" > " + tmpf, owner_->filePath());
 204 }
 205
 206
 207 CVS::CVS(string const & m, string const & f)
 208 {
 209         master_ = m;
 210         file_ = f;
 211         scanMaster();
 212 }
 213
 214
 215 string const CVS::find_file(string const & file)
 216 {
 217         // First we look for the CVS/Entries in the same dir
 218         // where we have file.
 219         string const dir = OnlyPath(file) + "/CVS/Entries";
 220         string const tmpf = "/" + OnlyFilename(file) + "/";
 221         lyxerr[Debug::LYXVC] << "LyXVC: checking in `" << dir
 222                              << "' for `" << tmpf << "'" << endl;
 223         FileInfo const f(dir);
 224         if (f.readable()) {
 225                 // Ok we are at least in a CVS dir. Parse the CVS/Entries
 226                 // and see if we can find this file. We do a fast and
 227                 // dirty parse here.
 228                 ifstream ifs(dir.c_str());
 229                 string line;
 230                 while (getline(ifs, line)) {
 231                         lyxerr[Debug::LYXVC] << "\tEntries: " << line << endl;
 232                         if (contains(line, tmpf)) return dir;
 233                 }
 234         }
 235         return string();
 236 }
 237
 238
 239 void CVS::scanMaster()
 240 {
 241         lyxerr[Debug::LYXVC] << "LyXVC::CVS: scanMaster. \n     Checking: "
 242                              << master_ << endl;
 243         // Ok now we do the real scan...
 244         ifstream ifs(master_.c_str());
 245         string tmpf = "/" + OnlyFilename(file_) + "/";
 246         lyxerr[Debug::LYXVC] << "\tlooking for `" << tmpf << "'" << endl;
 247         string line;
 248         LRegex reg("/(.*)/(.*)/(.*)/(.*)/(.*)");
 249         while (getline(ifs, line)) {
 250                 lyxerr[Debug::LYXVC] << "\t  line: " << line << endl;
 251                 if (contains(line, tmpf)) {
 252                         // Ok extract the fields.
 253                         LRegex::SubMatches const & sm = reg.exec(line);
 254                         //sm[0]; // whole matched string
 255                         //sm[1]; // filename
 256                         version_ = LSubstring(line, sm[2].first,
 257                                               sm[2].second);
 258                         string file_date = LSubstring(line, sm[3].first,
 259                                                       sm[3].second);
 260                         //sm[4]; // options
 261                         //sm[5]; // tag or tagdate
 262                         FileInfo fi(file_);
 263                         // FIXME: must double check file is stattable/existing
 264                         time_t mod = fi.getModificationTime();
 265                         string mod_date = strip(asctime(gmtime(&mod)), '\n');
 266                         lyxerr[Debug::LYXVC]
 267                                 <<  "Date in Entries: `" << file_date
 268                                 << "'\nModification date of file: `"
 269                                 << mod_date << "'" << endl;
 270                         if (file_date == mod_date) {
 271                                 locker_ = "Unlocked";
 272                                 vcstatus = UNLOCKED;
 273                         } else {
 274                                 // Here we should also to some more checking
 275                                 // to see if there are conflicts or not.
 276                                 locker_ = "Locked";
 277                                 vcstatus = LOCKED;
 278                         }
 279                         break;
 280                 }
 281         }
 282 }
 283
 284
 285 void CVS::registrer(string const & msg)
 286 {
 287         doVCCommand("cvs -q add -m \"" + msg + "\" \""
 288                     + OnlyFilename(owner_->fileName()) + "\"", owner_->filePath());
 289         owner_->getUser()->owner()->getLyXFunc()->dispatch(LFUN_MENURELOAD);
 290 }
 291
 292
 293 void CVS::checkIn(string const & msg)
 294 {
 295         doVCCommand("cvs -q commit -m \"" + msg + "\" \""
 296                     + OnlyFilename(owner_->fileName()) + "\"",
 297                     owner_->filePath());
 298         owner_->getUser()->owner()->getLyXFunc()->dispatch(LFUN_MENURELOAD);
 299 }
 300
 301
 302 void CVS::checkOut()
 303 {
 304         // cvs update or perhaps for cvs this should be a noop
 305         lyxerr << "Sorry not implemented." << endl;
 306 }
 307
 308
 309 void CVS::revert()
 310 {
 311         // Reverts to the version in CVS repository and
 312         // gets the updated version from the repository.
 313         string const fil = OnlyFilename(owner_->fileName());
 314
 315         doVCCommand("rm -f \"" + fil + "\"; cvs update \"" + fil + "\"",
 316                     owner_->filePath());
 317         owner_->markLyxClean();
 318         owner_->getUser()->owner()
 319                 ->getLyXFunc()->dispatch(LFUN_MENURELOAD);
 320 }
 321
 322
 323 void CVS::undoLast()
 324 {
 325         // merge the current with the previous version
 326         // in a reverse patch kind of way, so that the
 327         // result is to revert the last changes.
 328         lyxerr << "Sorry not implemented." << endl;
 329 }
 330
 331
 332 void CVS::getLog(string const & tmpf)
 333 {
 334         doVCCommand("cvs log \""
 335                     + OnlyFilename(owner_->fileName()) + "\" > " + tmpf,
 336                     owner_->filePath());
 337 }