src/vc-backend.C

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