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 "funcrequest.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 #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 using boost::regex;
  33 using boost::regex_match;
  34 using boost::smatch;
  35
  36 int VCS::doVCCommand(string const & cmd, string const & path)
  37 {
  38         lyxerr[Debug::LYXVC] << "doVCCommand: " << cmd << endl;
  39         Systemcall one;
  40         Path p(path);
  41         int const ret = one.startscript(Systemcall::Wait, cmd);
  42         return ret;
  43 }
  44
  45
  46 RCS::RCS(string const & m)
  47 {
  48         master_ = m;
  49         scanMaster();
  50 }
  51
  52
  53 string const RCS::find_file(string const & file)
  54 {
  55         string tmp(file);
  56         // Check if *,v exists.
  57         tmp += ",v";
  58         FileInfo f;
  59         lyxerr[Debug::LYXVC] << "Checking if file is under rcs: "
  60                              << tmp << endl;
  61         if (f.newFile(tmp).readable()) {
  62                 lyxerr[Debug::LYXVC] << "Yes " << file
  63                                      << " is under rcs." << endl;
  64                 return tmp;
  65         } else {
  66                 // Check if RCS/*,v exists.
  67                 tmp = AddName(AddPath(OnlyPath(file), "RCS"), file);
  68                 tmp += ",v";
  69                 lyxerr[Debug::LYXVC] << "Checking if file is under rcs: "
  70                                      << tmp << endl;
  71                 if (f.newFile(tmp).readable()) {
  72                         lyxerr[Debug::LYXVC] << "Yes " << file
  73                                              << " it is under rcs."<< endl;
  74                         return tmp;
  75                 }
  76         }
  77         return string();
  78 }
  79
  80
  81 void RCS::retrieve(string const & file)
  82 {
  83         lyxerr[Debug::LYXVC] << "LyXVC::RCS: retrieve.\n\t" << file << endl;
  84         VCS::doVCCommand("co -q -r \""
  85                          + file + "\"",
  86                          string());
  87 }
  88
  89
  90 void RCS::scanMaster()
  91 {
  92         lyxerr[Debug::LYXVC] << "LyXVC::RCS: scanMaster." << endl;
  93
  94         ifstream ifs(master_.c_str());
  95
  96         string token;
  97         bool read_enough = false;
  98
  99         while (!read_enough && ifs >> token) {
 100                 lyxerr[Debug::LYXVC]
 101                         << "LyXVC::scanMaster: current lex text: `"
 102                         << token << "'" << endl;
 103
 104                 if (token.empty())
 105                         continue;
 106                 else if (token == "head") {
 107                         // get version here
 108                         string tmv;
 109                         ifs >> tmv;
 110                         tmv = rtrim(tmv, ";");
 111                         version_ = tmv;
 112                         lyxerr[Debug::LYXVC] << "LyXVC: version found to be "
 113                                              << tmv << endl;
 114                 } else if (contains(token, "access")
 115                            || contains(token, "symbols")
 116                            || contains(token, "strict")) {
 117                         // nothing
 118                 } else if (contains(token, "locks")) {
 119                         // get locker here
 120                         if (contains(token, ";")) {
 121                                 locker_ = "Unlocked";
 122                                 vcstatus = UNLOCKED;
 123                                 continue;
 124                         }
 125                         string tmpt;
 126                         string s1;
 127                         string s2;
 128                         do {
 129                                 ifs >> tmpt;
 130                                 s1 = rtrim(tmpt, ";");
 131                                 // tmp is now in the format <user>:<version>
 132                                 s1 = split(s1, s2, ':');
 133                                 // s2 is user, and s1 is version
 134                                 if (s1 == version_) {
 135                                         locker_ = s2;
 136                                         vcstatus = LOCKED;
 137                                         break;
 138                                 }
 139                         } while (!contains(tmpt, ";"));
 140
 141                 } else if (token == "comment") {
 142                         // we don't need to read any further than this.
 143                         read_enough = true;
 144                 } else {
 145                         // unexpected
 146                         lyxerr[Debug::LYXVC]
 147                                 << "LyXVC::scanMaster(): unexpected token"
 148                                 << endl;
 149                 }
 150         }
 151 }
 152
 153
 154 void RCS::registrer(string const & msg)
 155 {
 156         string cmd = "ci -q -u -i -t-\"";
 157         cmd += msg;
 158         cmd += "\" \"";
 159         cmd += OnlyFilename(owner_->fileName());
 160         cmd += "\"";
 161         doVCCommand(cmd, owner_->filePath());
 162         owner_->getUser()->owner()->dispatch(FuncRequest(LFUN_MENURELOAD));
 163 }
 164
 165
 166 void RCS::checkIn(string const & msg)
 167 {
 168         doVCCommand("ci -q -u -m\"" + msg + "\" \""
 169                     + OnlyFilename(owner_->fileName()) + "\"", owner_->filePath());
 170         owner_->getUser()->owner()->dispatch(FuncRequest(LFUN_MENURELOAD));
 171 }
 172
 173
 174 void RCS::checkOut()
 175 {
 176         owner_->markClean();
 177         doVCCommand("co -q -l \""
 178                     + OnlyFilename(owner_->fileName()) + "\"", owner_->filePath());
 179         owner_->getUser()->owner()->dispatch(FuncRequest(LFUN_MENURELOAD));
 180 }
 181
 182
 183 void RCS::revert()
 184 {
 185         doVCCommand("co -f -u" + version() + " \""
 186                     + OnlyFilename(owner_->fileName()) + "\"", owner_->filePath());
 187         // We ignore changes and just reload!
 188         owner_->markClean();
 189         owner_->getUser()->owner()->dispatch(FuncRequest(LFUN_MENURELOAD));
 190 }
 191
 192
 193 void RCS::undoLast()
 194 {
 195         lyxerr[Debug::LYXVC] << "LyXVC: undoLast" << endl;
 196         doVCCommand("rcs -o" + version() + " \""
 197                     + OnlyFilename(owner_->fileName()) + "\"",
 198                     owner_->filePath());
 199 }
 200
 201
 202 void RCS::getLog(string const & tmpf)
 203 {
 204         doVCCommand("rlog \""
 205                     + OnlyFilename(owner_->fileName()) + "\" > " + tmpf, owner_->filePath());
 206 }
 207
 208
 209 CVS::CVS(string const & m, string const & f)
 210 {
 211         master_ = m;
 212         file_ = f;
 213         scanMaster();
 214 }
 215
 216
 217 string const CVS::find_file(string const & file)
 218 {
 219         // First we look for the CVS/Entries in the same dir
 220         // where we have file.
 221         string const dir = OnlyPath(file) + "/CVS/Entries";
 222         string const tmpf = "/" + OnlyFilename(file) + "/";
 223         lyxerr[Debug::LYXVC] << "LyXVC: checking in `" << dir
 224                              << "' for `" << tmpf << "'" << endl;
 225         FileInfo const f(dir);
 226         if (f.readable()) {
 227                 // Ok we are at least in a CVS dir. Parse the CVS/Entries
 228                 // and see if we can find this file. We do a fast and
 229                 // dirty parse here.
 230                 ifstream ifs(dir.c_str());
 231                 string line;
 232                 while (getline(ifs, line)) {
 233                         lyxerr[Debug::LYXVC] << "\tEntries: " << line << endl;
 234                         if (contains(line, tmpf)) return dir;
 235                 }
 236         }
 237         return string();
 238 }
 239
 240
 241 void CVS::scanMaster()
 242 {
 243         lyxerr[Debug::LYXVC] << "LyXVC::CVS: scanMaster. \n     Checking: "
 244                              << master_ << endl;
 245         // Ok now we do the real scan...
 246         ifstream ifs(master_.c_str());
 247         string tmpf = "/" + OnlyFilename(file_) + "/";
 248         lyxerr[Debug::LYXVC] << "\tlooking for `" << tmpf << "'" << endl;
 249         string line;
 250         regex reg("/(.*)/(.*)/(.*)/(.*)/(.*)");
 251         while (getline(ifs, line)) {
 252                 lyxerr[Debug::LYXVC] << "\t  line: " << line << endl;
 253                 if (contains(line, tmpf)) {
 254                         // Ok extract the fields.
 255                         smatch sm;
 256                         regex_match(line, sm, reg);
 257
 258                         //sm[0]; // whole matched string
 259                         //sm[1]; // filename
 260                         version_ = sm[2];
 261                         string file_date = sm[3];
 262                         //sm[4]; // options
 263                         //sm[5]; // tag or tagdate
 264                         FileInfo fi(file_);
 265                         // FIXME: must double check file is stattable/existing
 266                         time_t mod = fi.getModificationTime();
 267                         string mod_date = rtrim(asctime(gmtime(&mod)), "\n");
 268                         lyxerr[Debug::LYXVC]
 269                                 <<  "Date in Entries: `" << file_date
 270                                 << "'\nModification date of file: `"
 271                                 << mod_date << "'" << endl;
 272                         if (file_date == mod_date) {
 273                                 locker_ = "Unlocked";
 274                                 vcstatus = UNLOCKED;
 275                         } else {
 276                                 // Here we should also to some more checking
 277                                 // to see if there are conflicts or not.
 278                                 locker_ = "Locked";
 279                                 vcstatus = LOCKED;
 280                         }
 281                         break;
 282                 }
 283         }
 284 }
 285
 286
 287 void CVS::registrer(string const & msg)
 288 {
 289         doVCCommand("cvs -q add -m \"" + msg + "\" \""
 290                     + OnlyFilename(owner_->fileName()) + "\"", owner_->filePath());
 291         owner_->getUser()->owner()->dispatch(FuncRequest(LFUN_MENURELOAD));
 292 }
 293
 294
 295 void CVS::checkIn(string const & msg)
 296 {
 297         doVCCommand("cvs -q commit -m \"" + msg + "\" \""
 298                     + OnlyFilename(owner_->fileName()) + "\"",
 299                     owner_->filePath());
 300         owner_->getUser()->owner()->dispatch(FuncRequest(LFUN_MENURELOAD));
 301 }
 302
 303
 304 void CVS::checkOut()
 305 {
 306         // cvs update or perhaps for cvs this should be a noop
 307         lyxerr << "Sorry not implemented." << endl;
 308 }
 309
 310
 311 void CVS::revert()
 312 {
 313         // Reverts to the version in CVS repository and
 314         // gets the updated version from the repository.
 315         string const fil = OnlyFilename(owner_->fileName());
 316
 317         doVCCommand("rm -f \"" + fil + "\"; cvs update \"" + fil + "\"",
 318                     owner_->filePath());
 319         owner_->markClean();
 320         owner_->getUser()->owner()->dispatch(FuncRequest(LFUN_MENURELOAD));
 321 }
 322
 323
 324 void CVS::undoLast()
 325 {
 326         // merge the current with the previous version
 327         // in a reverse patch kind of way, so that the
 328         // result is to revert the last changes.
 329         lyxerr << "Sorry not implemented." << endl;
 330 }
 331
 332
 333 void CVS::getLog(string const & tmpf)
 334 {
 335         doVCCommand("cvs log \""
 336                     + OnlyFilename(owner_->fileName()) + "\" > " + tmpf,
 337                     owner_->filePath());
 338 }