src/vc-backend.C

   1 #include <config.h>
   2
   3 #include "vc-backend.h"
   4 #include "debug.h"
   5 #include "buffer.h"
   6 #include "BufferView.h"
   7 #include "frontends/LyXView.h"
   8 #include "funcrequest.h"
   9
  10 #include "support/FileInfo.h"
  11 #include "support/path.h"
  12 #include "support/filetools.h"
  13 #include "support/lstrings.h"
  14 #include "support/systemcall.h"
  15
  16 #include <boost/regex.hpp>
  17
  18 #include <fstream>
  19
  20 #ifndef CXX_GLOBAL_CSTD
  21 using std::asctime;
  22 using std::gmtime;
  23 #endif
  24
  25 using std::endl;
  26 using std::ifstream;
  27 using std::getline;
  28 using boost::regex;
  29 using boost::regex_match;
  30
  31 #ifndef USE_INCLUDED_STRING
  32 using boost::smatch;
  33 #else
  34 using boost::cmatch;
  35 #endif
  36
  37
  38 int VCS::doVCCommand(string const & cmd, string const & path)
  39 {
  40         lyxerr[Debug::LYXVC] << "doVCCommand: " << cmd << endl;
  41         Systemcall one;
  42         Path p(path);
  43         int const ret = one.startscript(Systemcall::Wait, cmd);
  44         return ret;
  45 }
  46
  47
  48 RCS::RCS(string const & m)
  49 {
  50         master_ = m;
  51         scanMaster();
  52 }
  53
  54
  55 string const RCS::find_file(string const & file)
  56 {
  57         string tmp(file);
  58         // Check if *,v exists.
  59         tmp += ",v";
  60         FileInfo f;
  61         lyxerr[Debug::LYXVC] << "Checking if file is under rcs: "
  62                              << tmp << endl;
  63         if (f.newFile(tmp).readable()) {
  64                 lyxerr[Debug::LYXVC] << "Yes " << file
  65                                      << " is under rcs." << endl;
  66                 return tmp;
  67         } else {
  68                 // Check if RCS/*,v exists.
  69                 tmp = AddName(AddPath(OnlyPath(file), "RCS"), file);
  70                 tmp += ",v";
  71                 lyxerr[Debug::LYXVC] << "Checking if file is under rcs: "
  72                                      << tmp << endl;
  73                 if (f.newFile(tmp).readable()) {
  74                         lyxerr[Debug::LYXVC] << "Yes " << file
  75                                              << " it is under rcs."<< endl;
  76                         return tmp;
  77                 }
  78         }
  79         return string();
  80 }
  81
  82
  83 void RCS::retrieve(string const & file)
  84 {
  85         lyxerr[Debug::LYXVC] << "LyXVC::RCS: retrieve.\n\t" << file << endl;
  86         VCS::doVCCommand("co -q -r \""
  87                          + file + '"',
  88                          string());
  89 }
  90
  91
  92 void RCS::scanMaster()
  93 {
  94         lyxerr[Debug::LYXVC] << "LyXVC::RCS: scanMaster." << endl;
  95
  96         ifstream ifs(master_.c_str());
  97
  98         string token;
  99         bool read_enough = false;
 100
 101         while (!read_enough && ifs >> token) {
 102                 lyxerr[Debug::LYXVC]
 103                         << "LyXVC::scanMaster: current lex text: `"
 104                         << token << '\'' << endl;
 105
 106                 if (token.empty())
 107                         continue;
 108                 else if (token == "head") {
 109                         // get version here
 110                         string tmv;
 111                         ifs >> tmv;
 112                         tmv = rtrim(tmv, ";");
 113                         version_ = tmv;
 114                         lyxerr[Debug::LYXVC] << "LyXVC: version found to be "
 115                                              << tmv << endl;
 116                 } else if (contains(token, "access")
 117                            || contains(token, "symbols")
 118                            || contains(token, "strict")) {
 119                         // nothing
 120                 } else if (contains(token, "locks")) {
 121                         // get locker here
 122                         if (contains(token, ";")) {
 123                                 locker_ = "Unlocked";
 124                                 vcstatus = UNLOCKED;
 125                                 continue;
 126                         }
 127                         string tmpt;
 128                         string s1;
 129                         string s2;
 130                         do {
 131                                 ifs >> tmpt;
 132                                 s1 = rtrim(tmpt, ";");
 133                                 // tmp is now in the format <user>:<version>
 134                                 s1 = split(s1, s2, ':');
 135                                 // s2 is user, and s1 is version
 136                                 if (s1 == version_) {
 137                                         locker_ = s2;
 138                                         vcstatus = LOCKED;
 139                                         break;
 140                                 }
 141                         } while (!contains(tmpt, ";"));
 142
 143                 } else if (token == "comment") {
 144                         // we don't need to read any further than this.
 145                         read_enough = true;
 146                 } else {
 147                         // unexpected
 148                         lyxerr[Debug::LYXVC]
 149                                 << "LyXVC::scanMaster(): unexpected token"
 150                                 << endl;
 151                 }
 152         }
 153 }
 154
 155
 156 void RCS::registrer(string const & msg)
 157 {
 158         string cmd = "ci -q -u -i -t-\"";
 159         cmd += msg;
 160         cmd += "\" \"";
 161         cmd += OnlyFilename(owner_->fileName());
 162         cmd += '"';
 163         doVCCommand(cmd, owner_->filePath());
 164         owner_->getUser()->owner()->dispatch(FuncRequest(LFUN_MENURELOAD));
 165 }
 166
 167
 168 void RCS::checkIn(string const & msg)
 169 {
 170         doVCCommand("ci -q -u -m\"" + msg + "\" \""
 171                     + OnlyFilename(owner_->fileName()) + '"',
 172                     owner_->filePath());
 173         owner_->getUser()->owner()->dispatch(FuncRequest(LFUN_MENURELOAD));
 174 }
 175
 176
 177 void RCS::checkOut()
 178 {
 179         owner_->markClean();
 180         doVCCommand("co -q -l \""
 181                     + OnlyFilename(owner_->fileName()) + '"',
 182                     owner_->filePath());
 183         owner_->getUser()->owner()->dispatch(FuncRequest(LFUN_MENURELOAD));
 184 }
 185
 186
 187 void RCS::revert()
 188 {
 189         doVCCommand("co -f -u" + version() + " \""
 190                     + OnlyFilename(owner_->fileName()) + '"',
 191                     owner_->filePath());
 192         // We ignore changes and just reload!
 193         owner_->markClean();
 194         owner_->getUser()->owner()->dispatch(FuncRequest(LFUN_MENURELOAD));
 195 }
 196
 197
 198 void RCS::undoLast()
 199 {
 200         lyxerr[Debug::LYXVC] << "LyXVC: undoLast" << endl;
 201         doVCCommand("rcs -o" + version() + " \""
 202                     + OnlyFilename(owner_->fileName()) + '"',
 203                     owner_->filePath());
 204 }
 205
 206
 207 void RCS::getLog(string const & tmpf)
 208 {
 209         doVCCommand("rlog \""
 210                     + OnlyFilename(owner_->fileName()) + "\" > "
 211                     + tmpf, owner_->filePath());
 212 }
 213
 214
 215 CVS::CVS(string const & m, string const & f)
 216 {
 217         master_ = m;
 218         file_ = f;
 219         scanMaster();
 220 }
 221
 222
 223 string const CVS::find_file(string const & file)
 224 {
 225         // First we look for the CVS/Entries in the same dir
 226         // where we have file.
 227         string const dir = OnlyPath(file) + "/CVS/Entries";
 228         string const tmpf = "/" + OnlyFilename(file) + "/";
 229         lyxerr[Debug::LYXVC] << "LyXVC: checking in `" << dir
 230                              << "' for `" << tmpf << '\'' << endl;
 231         FileInfo const f(dir);
 232         if (f.readable()) {
 233                 // Ok we are at least in a CVS dir. Parse the CVS/Entries
 234                 // and see if we can find this file. We do a fast and
 235                 // dirty parse here.
 236                 ifstream ifs(dir.c_str());
 237                 string line;
 238                 while (getline(ifs, line)) {
 239                         lyxerr[Debug::LYXVC] << "\tEntries: " << line << endl;
 240                         if (contains(line, tmpf)) return dir;
 241                 }
 242         }
 243         return string();
 244 }
 245
 246
 247 void CVS::scanMaster()
 248 {
 249         lyxerr[Debug::LYXVC] << "LyXVC::CVS: scanMaster. \n     Checking: "
 250                              << master_ << endl;
 251         // Ok now we do the real scan...
 252         ifstream ifs(master_.c_str());
 253         string tmpf = "/" + OnlyFilename(file_) + "/";
 254         lyxerr[Debug::LYXVC] << "\tlooking for `" << tmpf << '\'' << endl;
 255         string line;
 256         regex reg("/(.*)/(.*)/(.*)/(.*)/(.*)");
 257         while (getline(ifs, line)) {
 258                 lyxerr[Debug::LYXVC] << "\t  line: " << line << endl;
 259                 if (contains(line, tmpf)) {
 260                         // Ok extract the fields.
 261 #ifndef USE_INCLUDED_STRING
 262                         smatch sm;
 263 #else
 264                         cmatch sm;
 265 #endif
 266                         regex_match(STRCONV(line), sm, reg);
 267
 268                         //sm[0]; // whole matched string
 269                         //sm[1]; // filename
 270                         version_ = STRCONV(sm.str(2));
 271                         string const file_date = STRCONV(sm.str(3));
 272
 273                         //sm[4]; // options
 274                         //sm[5]; // tag or tagdate
 275                         FileInfo fi(file_);
 276                         // FIXME: must double check file is stattable/existing
 277                         time_t mod = fi.getModificationTime();
 278                         string mod_date = rtrim(asctime(gmtime(&mod)), "\n");
 279                         lyxerr[Debug::LYXVC]
 280                                 <<  "Date in Entries: `" << file_date
 281                                 << "'\nModification date of file: `"
 282                                 << mod_date << '\'' << endl;
 283                         if (file_date == mod_date) {
 284                                 locker_ = "Unlocked";
 285                                 vcstatus = UNLOCKED;
 286                         } else {
 287                                 // Here we should also to some more checking
 288                                 // to see if there are conflicts or not.
 289                                 locker_ = "Locked";
 290                                 vcstatus = LOCKED;
 291                         }
 292                         break;
 293                 }
 294         }
 295 }
 296
 297
 298 void CVS::registrer(string const & msg)
 299 {
 300         doVCCommand("cvs -q add -m \"" + msg + "\" \""
 301                     + OnlyFilename(owner_->fileName()) + '"',
 302                     owner_->filePath());
 303         owner_->getUser()->owner()->dispatch(FuncRequest(LFUN_MENURELOAD));
 304 }
 305
 306
 307 void CVS::checkIn(string const & msg)
 308 {
 309         doVCCommand("cvs -q commit -m \"" + msg + "\" \""
 310                     + OnlyFilename(owner_->fileName()) + '"',
 311                     owner_->filePath());
 312         owner_->getUser()->owner()->dispatch(FuncRequest(LFUN_MENURELOAD));
 313 }
 314
 315
 316 void CVS::checkOut()
 317 {
 318         // cvs update or perhaps for cvs this should be a noop
 319         lyxerr << "Sorry not implemented." << endl;
 320 }
 321
 322
 323 void CVS::revert()
 324 {
 325         // Reverts to the version in CVS repository and
 326         // gets the updated version from the repository.
 327         string const fil = OnlyFilename(owner_->fileName());
 328
 329         doVCCommand("rm -f \"" + fil + "\"; cvs update \"" + fil + '"',
 330                     owner_->filePath());
 331         owner_->markClean();
 332         owner_->getUser()->owner()->dispatch(FuncRequest(LFUN_MENURELOAD));
 333 }
 334
 335
 336 void CVS::undoLast()
 337 {
 338         // merge the current with the previous version
 339         // in a reverse patch kind of way, so that the
 340         // result is to revert the last changes.
 341         lyxerr << "Sorry not implemented." << endl;
 342 }
 343
 344
 345 void CVS::getLog(string const & tmpf)
 346 {
 347         doVCCommand("cvs log \""
 348                     + OnlyFilename(owner_->fileName()) + "\" > " + tmpf,
 349                     owner_->filePath());
 350 }