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