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 void VCS::reload()
  49 {
  50         owner_->getUser()->reload();
  51         /* Watch out ! We have deleted ourselves here
  52          * via the ->reload() !
  53          */
  54 }
  55
  56
  57 RCS::RCS(string const & m)
  58 {
  59         master_ = m;
  60         scanMaster();
  61 }
  62
  63
  64 string const RCS::find_file(string const & file)
  65 {
  66         string tmp(file);
  67         // Check if *,v exists.
  68         tmp += ",v";
  69         FileInfo f;
  70         lyxerr[Debug::LYXVC] << "Checking if file is under rcs: "
  71                              << tmp << endl;
  72         if (f.newFile(tmp).readable()) {
  73                 lyxerr[Debug::LYXVC] << "Yes " << file
  74                                      << " is under rcs." << endl;
  75                 return tmp;
  76         } else {
  77                 // Check if RCS/*,v exists.
  78                 tmp = AddName(AddPath(OnlyPath(file), "RCS"), file);
  79                 tmp += ",v";
  80                 lyxerr[Debug::LYXVC] << "Checking if file is under rcs: "
  81                                      << tmp << endl;
  82                 if (f.newFile(tmp).readable()) {
  83                         lyxerr[Debug::LYXVC] << "Yes " << file
  84                                              << " it is under rcs."<< endl;
  85                         return tmp;
  86                 }
  87         }
  88         return string();
  89 }
  90
  91
  92 void RCS::retrieve(string const & file)
  93 {
  94         lyxerr[Debug::LYXVC] << "LyXVC::RCS: retrieve.\n\t" << file << endl;
  95         VCS::doVCCommand("co -q -r \""
  96                          + file + '"',
  97                          string());
  98 }
  99
 100
 101 void RCS::scanMaster()
 102 {
 103         lyxerr[Debug::LYXVC] << "LyXVC::RCS: scanMaster." << endl;
 104
 105         ifstream ifs(master_.c_str());
 106
 107         string token;
 108         bool read_enough = false;
 109
 110         while (!read_enough && ifs >> token) {
 111                 lyxerr[Debug::LYXVC]
 112                         << "LyXVC::scanMaster: current lex text: `"
 113                         << token << '\'' << endl;
 114
 115                 if (token.empty())
 116                         continue;
 117                 else if (token == "head") {
 118                         // get version here
 119                         string tmv;
 120                         ifs >> tmv;
 121                         tmv = rtrim(tmv, ";");
 122                         version_ = tmv;
 123                         lyxerr[Debug::LYXVC] << "LyXVC: version found to be "
 124                                              << tmv << endl;
 125                 } else if (contains(token, "access")
 126                            || contains(token, "symbols")
 127                            || contains(token, "strict")) {
 128                         // nothing
 129                 } else if (contains(token, "locks")) {
 130                         // get locker here
 131                         if (contains(token, ";")) {
 132                                 locker_ = "Unlocked";
 133                                 vcstatus = UNLOCKED;
 134                                 continue;
 135                         }
 136                         string tmpt;
 137                         string s1;
 138                         string s2;
 139                         do {
 140                                 ifs >> tmpt;
 141                                 s1 = rtrim(tmpt, ";");
 142                                 // tmp is now in the format <user>:<version>
 143                                 s1 = split(s1, s2, ':');
 144                                 // s2 is user, and s1 is version
 145                                 if (s1 == version_) {
 146                                         locker_ = s2;
 147                                         vcstatus = LOCKED;
 148                                         break;
 149                                 }
 150                         } while (!contains(tmpt, ";"));
 151
 152                 } else if (token == "comment") {
 153                         // we don't need to read any further than this.
 154                         read_enough = true;
 155                 } else {
 156                         // unexpected
 157                         lyxerr[Debug::LYXVC]
 158                                 << "LyXVC::scanMaster(): unexpected token"
 159                                 << endl;
 160                 }
 161         }
 162 }
 163
 164
 165 void RCS::registrer(string const & msg)
 166 {
 167         string cmd = "ci -q -u -i -t-\"";
 168         cmd += msg;
 169         cmd += "\" \"";
 170         cmd += OnlyFilename(owner_->fileName());
 171         cmd += '"';
 172         doVCCommand(cmd, owner_->filePath());
 173         reload();
 174 }
 175
 176
 177 void RCS::checkIn(string const & msg)
 178 {
 179         doVCCommand("ci -q -u -m\"" + msg + "\" \""
 180                     + OnlyFilename(owner_->fileName()) + '"',
 181                     owner_->filePath());
 182         reload();
 183 }
 184
 185
 186 void RCS::checkOut()
 187 {
 188         owner_->markClean();
 189         doVCCommand("co -q -l \""
 190                     + OnlyFilename(owner_->fileName()) + '"',
 191                     owner_->filePath());
 192         reload();
 193 }
 194
 195
 196 void RCS::revert()
 197 {
 198         doVCCommand("co -f -u" + version() + " \""
 199                     + OnlyFilename(owner_->fileName()) + '"',
 200                     owner_->filePath());
 201         // We ignore changes and just reload!
 202         owner_->markClean();
 203         reload();
 204 }
 205
 206
 207 void RCS::undoLast()
 208 {
 209         lyxerr[Debug::LYXVC] << "LyXVC: undoLast" << endl;
 210         doVCCommand("rcs -o" + version() + " \""
 211                     + OnlyFilename(owner_->fileName()) + '"',
 212                     owner_->filePath());
 213 }
 214
 215
 216 void RCS::getLog(string const & tmpf)
 217 {
 218         doVCCommand("rlog \""
 219                     + OnlyFilename(owner_->fileName()) + "\" > "
 220                     + tmpf, owner_->filePath());
 221 }
 222
 223
 224 CVS::CVS(string const & m, string const & f)
 225 {
 226         master_ = m;
 227         file_ = f;
 228         scanMaster();
 229 }
 230
 231
 232 string const CVS::find_file(string const & file)
 233 {
 234         // First we look for the CVS/Entries in the same dir
 235         // where we have file.
 236         string const dir = OnlyPath(file) + "/CVS/Entries";
 237         string const tmpf = "/" + OnlyFilename(file) + "/";
 238         lyxerr[Debug::LYXVC] << "LyXVC: checking in `" << dir
 239                              << "' for `" << tmpf << '\'' << endl;
 240         FileInfo const f(dir);
 241         if (f.readable()) {
 242                 // Ok we are at least in a CVS dir. Parse the CVS/Entries
 243                 // and see if we can find this file. We do a fast and
 244                 // dirty parse here.
 245                 ifstream ifs(dir.c_str());
 246                 string line;
 247                 while (getline(ifs, line)) {
 248                         lyxerr[Debug::LYXVC] << "\tEntries: " << line << endl;
 249                         if (contains(line, tmpf)) return dir;
 250                 }
 251         }
 252         return string();
 253 }
 254
 255
 256 void CVS::scanMaster()
 257 {
 258         lyxerr[Debug::LYXVC] << "LyXVC::CVS: scanMaster. \n     Checking: "
 259                              << master_ << endl;
 260         // Ok now we do the real scan...
 261         ifstream ifs(master_.c_str());
 262         string tmpf = "/" + OnlyFilename(file_) + "/";
 263         lyxerr[Debug::LYXVC] << "\tlooking for `" << tmpf << '\'' << endl;
 264         string line;
 265         regex reg("/(.*)/(.*)/(.*)/(.*)/(.*)");
 266         while (getline(ifs, line)) {
 267                 lyxerr[Debug::LYXVC] << "\t  line: " << line << endl;
 268                 if (contains(line, tmpf)) {
 269                         // Ok extract the fields.
 270 #ifndef USE_INCLUDED_STRING
 271                         smatch sm;
 272 #else
 273                         cmatch sm;
 274 #endif
 275                         regex_match(STRCONV(line), sm, reg);
 276
 277                         //sm[0]; // whole matched string
 278                         //sm[1]; // filename
 279                         version_ = STRCONV(sm.str(2));
 280                         string const file_date = STRCONV(sm.str(3));
 281
 282                         //sm[4]; // options
 283                         //sm[5]; // tag or tagdate
 284                         FileInfo fi(file_);
 285                         // FIXME: must double check file is stattable/existing
 286                         time_t mod = fi.getModificationTime();
 287                         string mod_date = rtrim(asctime(gmtime(&mod)), "\n");
 288                         lyxerr[Debug::LYXVC]
 289                                 <<  "Date in Entries: `" << file_date
 290                                 << "'\nModification date of file: `"
 291                                 << mod_date << '\'' << endl;
 292                         if (file_date == mod_date) {
 293                                 locker_ = "Unlocked";
 294                                 vcstatus = UNLOCKED;
 295                         } else {
 296                                 // Here we should also to some more checking
 297                                 // to see if there are conflicts or not.
 298                                 locker_ = "Locked";
 299                                 vcstatus = LOCKED;
 300                         }
 301                         break;
 302                 }
 303         }
 304 }
 305
 306
 307 void CVS::registrer(string const & msg)
 308 {
 309         doVCCommand("cvs -q add -m \"" + msg + "\" \""
 310                     + OnlyFilename(owner_->fileName()) + '"',
 311                     owner_->filePath());
 312         reload();
 313 }
 314
 315
 316 void CVS::checkIn(string const & msg)
 317 {
 318         doVCCommand("cvs -q commit -m \"" + msg + "\" \""
 319                     + OnlyFilename(owner_->fileName()) + '"',
 320                     owner_->filePath());
 321         reload();
 322 }
 323
 324
 325 void CVS::checkOut()
 326 {
 327         // cvs update or perhaps for cvs this should be a noop
 328         lyxerr << "Sorry not implemented." << endl;
 329 }
 330
 331
 332 void CVS::revert()
 333 {
 334         // Reverts to the version in CVS repository and
 335         // gets the updated version from the repository.
 336         string const fil = OnlyFilename(owner_->fileName());
 337
 338         doVCCommand("rm -f \"" + fil + "\"; cvs update \"" + fil + '"',
 339                     owner_->filePath());
 340         owner_->markClean();
 341         reload();
 342 }
 343
 344
 345 void CVS::undoLast()
 346 {
 347         // merge the current with the previous version
 348         // in a reverse patch kind of way, so that the
 349         // result is to revert the last changes.
 350         lyxerr << "Sorry not implemented." << endl;
 351 }
 352
 353
 354 void CVS::getLog(string const & tmpf)
 355 {
 356         doVCCommand("cvs log \""
 357                     + OnlyFilename(owner_->fileName()) + "\" > " + tmpf,
 358                     owner_->filePath());
 359 }