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 using namespace lyx::support;
  21
  22 #ifndef CXX_GLOBAL_CSTD
  23 using std::asctime;
  24 using std::gmtime;
  25 #endif
  26
  27 using std::endl;
  28 using std::ifstream;
  29 using std::getline;
  30 using boost::regex;
  31 using boost::regex_match;
  32
  33 #ifndef USE_INCLUDED_STRING
  34 using boost::smatch;
  35 #else
  36 using boost::cmatch;
  37 #endif
  38
  39
  40 int VCS::doVCCommand(string const & cmd, string const & path)
  41 {
  42         lyxerr[Debug::LYXVC] << "doVCCommand: " << cmd << endl;
  43         Systemcall one;
  44         Path p(path);
  45         int const ret = one.startscript(Systemcall::Wait, cmd);
  46         return ret;
  47 }
  48
  49
  50 void VCS::reload()
  51 {
  52         owner_->getUser()->reload();
  53         /* Watch out ! We have deleted ourselves here
  54          * via the ->reload() !
  55          */
  56 }
  57
  58
  59 RCS::RCS(string const & m)
  60 {
  61         master_ = m;
  62         scanMaster();
  63 }
  64
  65
  66 string const RCS::find_file(string const & file)
  67 {
  68         string tmp(file);
  69         // Check if *,v exists.
  70         tmp += ",v";
  71         FileInfo f;
  72         lyxerr[Debug::LYXVC] << "Checking if file is under rcs: "
  73                              << tmp << endl;
  74         if (f.newFile(tmp).readable()) {
  75                 lyxerr[Debug::LYXVC] << "Yes " << file
  76                                      << " is under rcs." << endl;
  77                 return tmp;
  78         } else {
  79                 // Check if RCS/*,v exists.
  80                 tmp = AddName(AddPath(OnlyPath(file), "RCS"), file);
  81                 tmp += ",v";
  82                 lyxerr[Debug::LYXVC] << "Checking if file is under rcs: "
  83                                      << tmp << endl;
  84                 if (f.newFile(tmp).readable()) {
  85                         lyxerr[Debug::LYXVC] << "Yes " << file
  86                                              << " it is under rcs."<< endl;
  87                         return tmp;
  88                 }
  89         }
  90         return string();
  91 }
  92
  93
  94 void RCS::retrieve(string const & file)
  95 {
  96         lyxerr[Debug::LYXVC] << "LyXVC::RCS: retrieve.\n\t" << file << endl;
  97         VCS::doVCCommand("co -q -r \""
  98                          + file + '"',
  99                          string());
 100 }
 101
 102
 103 void RCS::scanMaster()
 104 {
 105         lyxerr[Debug::LYXVC] << "LyXVC::RCS: scanMaster." << endl;
 106
 107         ifstream ifs(master_.c_str());
 108
 109         string token;
 110         bool read_enough = false;
 111
 112         while (!read_enough && ifs >> token) {
 113                 lyxerr[Debug::LYXVC]
 114                         << "LyXVC::scanMaster: current lex text: `"
 115                         << token << '\'' << endl;
 116
 117                 if (token.empty())
 118                         continue;
 119                 else if (token == "head") {
 120                         // get version here
 121                         string tmv;
 122                         ifs >> tmv;
 123                         tmv = rtrim(tmv, ";");
 124                         version_ = tmv;
 125                         lyxerr[Debug::LYXVC] << "LyXVC: version found to be "
 126                                              << tmv << endl;
 127                 } else if (contains(token, "access")
 128                            || contains(token, "symbols")
 129                            || contains(token, "strict")) {
 130                         // nothing
 131                 } else if (contains(token, "locks")) {
 132                         // get locker here
 133                         if (contains(token, ";")) {
 134                                 locker_ = "Unlocked";
 135                                 vcstatus = UNLOCKED;
 136                                 continue;
 137                         }
 138                         string tmpt;
 139                         string s1;
 140                         string s2;
 141                         do {
 142                                 ifs >> tmpt;
 143                                 s1 = rtrim(tmpt, ";");
 144                                 // tmp is now in the format <user>:<version>
 145                                 s1 = split(s1, s2, ':');
 146                                 // s2 is user, and s1 is version
 147                                 if (s1 == version_) {
 148                                         locker_ = s2;
 149                                         vcstatus = LOCKED;
 150                                         break;
 151                                 }
 152                         } while (!contains(tmpt, ";"));
 153
 154                 } else if (token == "comment") {
 155                         // we don't need to read any further than this.
 156                         read_enough = true;
 157                 } else {
 158                         // unexpected
 159                         lyxerr[Debug::LYXVC]
 160                                 << "LyXVC::scanMaster(): unexpected token"
 161                                 << endl;
 162                 }
 163         }
 164 }
 165
 166
 167 void RCS::registrer(string const & msg)
 168 {
 169         string cmd = "ci -q -u -i -t-\"";
 170         cmd += msg;
 171         cmd += "\" \"";
 172         cmd += OnlyFilename(owner_->fileName());
 173         cmd += '"';
 174         doVCCommand(cmd, owner_->filePath());
 175         reload();
 176 }
 177
 178
 179 void RCS::checkIn(string const & msg)
 180 {
 181         doVCCommand("ci -q -u -m\"" + msg + "\" \""
 182                     + OnlyFilename(owner_->fileName()) + '"',
 183                     owner_->filePath());
 184         reload();
 185 }
 186
 187
 188 void RCS::checkOut()
 189 {
 190         owner_->markClean();
 191         doVCCommand("co -q -l \""
 192                     + OnlyFilename(owner_->fileName()) + '"',
 193                     owner_->filePath());
 194         reload();
 195 }
 196
 197
 198 void RCS::revert()
 199 {
 200         doVCCommand("co -f -u" + version() + " \""
 201                     + OnlyFilename(owner_->fileName()) + '"',
 202                     owner_->filePath());
 203         // We ignore changes and just reload!
 204         owner_->markClean();
 205         reload();
 206 }
 207
 208
 209 void RCS::undoLast()
 210 {
 211         lyxerr[Debug::LYXVC] << "LyXVC: undoLast" << endl;
 212         doVCCommand("rcs -o" + version() + " \""
 213                     + OnlyFilename(owner_->fileName()) + '"',
 214                     owner_->filePath());
 215 }
 216
 217
 218 void RCS::getLog(string const & tmpf)
 219 {
 220         doVCCommand("rlog \""
 221                     + OnlyFilename(owner_->fileName()) + "\" > "
 222                     + tmpf, owner_->filePath());
 223 }
 224
 225
 226 CVS::CVS(string const & m, string const & f)
 227 {
 228         master_ = m;
 229         file_ = f;
 230         scanMaster();
 231 }
 232
 233
 234 string const CVS::find_file(string const & file)
 235 {
 236         // First we look for the CVS/Entries in the same dir
 237         // where we have file.
 238         string const dir = OnlyPath(file) + "/CVS/Entries";
 239         string const tmpf = "/" + OnlyFilename(file) + "/";
 240         lyxerr[Debug::LYXVC] << "LyXVC: checking in `" << dir
 241                              << "' for `" << tmpf << '\'' << endl;
 242         FileInfo const f(dir);
 243         if (f.readable()) {
 244                 // Ok we are at least in a CVS dir. Parse the CVS/Entries
 245                 // and see if we can find this file. We do a fast and
 246                 // dirty parse here.
 247                 ifstream ifs(dir.c_str());
 248                 string line;
 249                 while (getline(ifs, line)) {
 250                         lyxerr[Debug::LYXVC] << "\tEntries: " << line << endl;
 251                         if (contains(line, tmpf)) return dir;
 252                 }
 253         }
 254         return string();
 255 }
 256
 257
 258 void CVS::scanMaster()
 259 {
 260         lyxerr[Debug::LYXVC] << "LyXVC::CVS: scanMaster. \n     Checking: "
 261                              << master_ << endl;
 262         // Ok now we do the real scan...
 263         ifstream ifs(master_.c_str());
 264         string tmpf = "/" + OnlyFilename(file_) + "/";
 265         lyxerr[Debug::LYXVC] << "\tlooking for `" << tmpf << '\'' << endl;
 266         string line;
 267         regex reg("/(.*)/(.*)/(.*)/(.*)/(.*)");
 268         while (getline(ifs, line)) {
 269                 lyxerr[Debug::LYXVC] << "\t  line: " << line << endl;
 270                 if (contains(line, tmpf)) {
 271                         // Ok extract the fields.
 272 #ifndef USE_INCLUDED_STRING
 273                         smatch sm;
 274 #else
 275                         cmatch sm;
 276 #endif
 277                         regex_match(STRCONV(line), sm, reg);
 278
 279                         //sm[0]; // whole matched string
 280                         //sm[1]; // filename
 281                         version_ = STRCONV(sm.str(2));
 282                         string const file_date = STRCONV(sm.str(3));
 283
 284                         //sm[4]; // options
 285                         //sm[5]; // tag or tagdate
 286                         FileInfo fi(file_);
 287                         // FIXME: must double check file is stattable/existing
 288                         time_t mod = fi.getModificationTime();
 289                         string mod_date = rtrim(asctime(gmtime(&mod)), "\n");
 290                         lyxerr[Debug::LYXVC]
 291                                 <<  "Date in Entries: `" << file_date
 292                                 << "'\nModification date of file: `"
 293                                 << mod_date << '\'' << endl;
 294                         if (file_date == mod_date) {
 295                                 locker_ = "Unlocked";
 296                                 vcstatus = UNLOCKED;
 297                         } else {
 298                                 // Here we should also to some more checking
 299                                 // to see if there are conflicts or not.
 300                                 locker_ = "Locked";
 301                                 vcstatus = LOCKED;
 302                         }
 303                         break;
 304                 }
 305         }
 306 }
 307
 308
 309 void CVS::registrer(string const & msg)
 310 {
 311         doVCCommand("cvs -q add -m \"" + msg + "\" \""
 312                     + OnlyFilename(owner_->fileName()) + '"',
 313                     owner_->filePath());
 314         reload();
 315 }
 316
 317
 318 void CVS::checkIn(string const & msg)
 319 {
 320         doVCCommand("cvs -q commit -m \"" + msg + "\" \""
 321                     + OnlyFilename(owner_->fileName()) + '"',
 322                     owner_->filePath());
 323         reload();
 324 }
 325
 326
 327 void CVS::checkOut()
 328 {
 329         // cvs update or perhaps for cvs this should be a noop
 330         lyxerr << "Sorry not implemented." << endl;
 331 }
 332
 333
 334 void CVS::revert()
 335 {
 336         // Reverts to the version in CVS repository and
 337         // gets the updated version from the repository.
 338         string const fil = OnlyFilename(owner_->fileName());
 339
 340         doVCCommand("rm -f \"" + fil + "\"; cvs update \"" + fil + '"',
 341                     owner_->filePath());
 342         owner_->markClean();
 343         reload();
 344 }
 345
 346
 347 void CVS::undoLast()
 348 {
 349         // merge the current with the previous version
 350         // in a reverse patch kind of way, so that the
 351         // result is to revert the last changes.
 352         lyxerr << "Sorry not implemented." << endl;
 353 }
 354
 355
 356 void CVS::getLog(string const & tmpf)
 357 {
 358         doVCCommand("cvs log \""
 359                     + OnlyFilename(owner_->fileName()) + "\" > " + tmpf,
 360                     owner_->filePath());
 361 }