src/Converter.cpp

   1 /**
   2  * \file Converter.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Dekel Tsur
   7  *
   8  * Full author contact details are available in file CREDITS.
   9  */
  10
  11 #include <config.h>
  12
  13 #include "Converter.h"
  14
  15 #include "Buffer.h"
  16 #include "buffer_funcs.h"
  17 #include "BufferParams.h"
  18 #include "ConverterCache.h"
  19 #include "Encoding.h"
  20 #include "ErrorList.h"
  21 #include "Format.h"
  22 #include "InsetList.h"
  23 #include "Language.h"
  24 #include "LaTeX.h"
  25 #include "LyXRC.h"
  26 #include "Mover.h"
  27 #include "ParagraphList.h"
  28 #include "Session.h"
  29
  30 #include "frontends/alert.h"
  31
  32 #include "insets/InsetInclude.h"
  33
  34 #include "support/debug.h"
  35 #include "support/FileNameList.h"
  36 #include "support/filetools.h"
  37 #include "support/gettext.h"
  38 #include "support/lassert.h"
  39 #include "support/lstrings.h"
  40 #include "support/os.h"
  41 #include "support/Package.h"
  42 #include "support/PathChanger.h"
  43 #include "support/Systemcall.h"
  44
  45 using namespace std;
  46 using namespace lyx::support;
  47
  48 namespace lyx {
  49
  50 namespace Alert = lyx::frontend::Alert;
  51
  52
  53 namespace {
  54
  55 string const token_from("$$i");
  56 string const token_base("$$b");
  57 string const token_to("$$o");
  58 string const token_path("$$p");
  59 string const token_orig_path("$$r");
  60 string const token_orig_from("$$f");
  61 string const token_encoding("$$e");
  62 string const token_latex_encoding("$$E");
  63
  64
  65 string const add_options(string const & command, string const & options)
  66 {
  67         string head;
  68         string const tail = split(command, head, ' ');
  69         return head + ' ' + options + ' ' + tail;
  70 }
  71
  72
  73 string const dvipdfm_options(BufferParams const & bp)
  74 {
  75         string result;
  76
  77         if (bp.papersize != PAPER_CUSTOM) {
  78                 string const paper_size = bp.paperSizeName(BufferParams::DVIPDFM);
  79                 if (!paper_size.empty())
  80                         result = "-p "+ paper_size;
  81
  82                 if (bp.orientation == ORIENTATION_LANDSCAPE)
  83                         result += " -l";
  84         }
  85
  86         return result;
  87 }
  88
  89
  90 class ConverterEqual {
  91 public:
  92         ConverterEqual(string const & from, string const & to)
  93                 : from_(from), to_(to) {}
  94         bool operator()(Converter const & c) const {
  95                 return c.from() == from_ && c.to() == to_;
  96         }
  97 private:
  98         string const from_;
  99         string const to_;
 100 };
 101
 102 } // namespace
 103
 104
 105 Converter::Converter(string const & f, string const & t,
 106                      string const & c, string const & l)
 107         : from_(f), to_(t), command_(c), flags_(l),
 108           From_(0), To_(0), latex_(false), xml_(false),
 109           need_aux_(false), nice_(false), need_auth_(false)
 110 {}
 111
 112
 113 void Converter::readFlags()
 114 {
 115         string flag_list(flags_);
 116         while (!flag_list.empty()) {
 117                 string flag_name, flag_value;
 118                 flag_list = split(flag_list, flag_value, ',');
 119                 flag_value = split(flag_value, flag_name, '=');
 120                 if (flag_name == "latex") {
 121                         latex_ = true;
 122                         latex_flavor_ = flag_value.empty() ?
 123                                 "latex" : flag_value;
 124                 } else if (flag_name == "xml")
 125                         xml_ = true;
 126                 else if (flag_name == "needaux") {
 127                         need_aux_ = true;
 128                         latex_flavor_ = flag_value.empty() ?
 129                                 "latex" : flag_value;
 130                 } else if (flag_name == "resultdir")
 131                         result_dir_ = (flag_value.empty())
 132                                 ? token_base : flag_value;
 133                 else if (flag_name == "resultfile")
 134                         result_file_ = flag_value;
 135                 else if (flag_name == "parselog")
 136                         parselog_ = flag_value;
 137                 else if (flag_name == "nice")
 138                         nice_ = true;
 139                 else if (flag_name == "needauth")
 140                         need_auth_ = true;
 141                 else if (flag_name == "hyperref-driver")
 142                         href_driver_ = flag_value;
 143         }
 144         if (!result_dir_.empty() && result_file_.empty())
 145                 result_file_ = "index." + theFormats().extension(to_);
 146         //if (!contains(command, token_from))
 147         //      latex = true;
 148 }
 149
 150
 151 Converter const * Converters::getConverter(string const & from,
 152                                             string const & to) const
 153 {
 154         ConverterList::const_iterator const cit =
 155                 find_if(converterlist_.begin(), converterlist_.end(),
 156                         ConverterEqual(from, to));
 157         if (cit != converterlist_.end())
 158                 return &(*cit);
 159         else
 160                 return 0;
 161 }
 162
 163
 164 int Converters::getNumber(string const & from, string const & to) const
 165 {
 166         ConverterList::const_iterator const cit =
 167                 find_if(converterlist_.begin(), converterlist_.end(),
 168                         ConverterEqual(from, to));
 169         if (cit != converterlist_.end())
 170                 return distance(converterlist_.begin(), cit);
 171         else
 172                 return -1;
 173 }
 174
 175
 176 void Converters::add(string const & from, string const & to,
 177                      string const & command, string const & flags)
 178 {
 179         theFormats().add(from);
 180         theFormats().add(to);
 181         ConverterList::iterator it = find_if(converterlist_.begin(),
 182                                              converterlist_.end(),
 183                                              ConverterEqual(from , to));
 184
 185         Converter converter(from, to, command, flags);
 186         if (it != converterlist_.end() && !flags.empty() && flags[0] == '*') {
 187                 converter = *it;
 188                 converter.setCommand(command);
 189                 converter.setFlags(flags);
 190         }
 191         converter.readFlags();
 192
 193         // The latex_command is used to update the .aux file when running
 194         // a converter that uses it.
 195         if (converter.latex()) {
 196                 if (latex_command_.empty() ||
 197                     converter.latex_flavor() == "latex")
 198                         latex_command_ = subst(command, token_from, "");
 199                 if (dvilualatex_command_.empty() ||
 200                     converter.latex_flavor() == "dvilualatex")
 201                         dvilualatex_command_ = subst(command, token_from, "");
 202                 if (lualatex_command_.empty() ||
 203                     converter.latex_flavor() == "lualatex")
 204                         lualatex_command_ = subst(command, token_from, "");
 205                 if (pdflatex_command_.empty() ||
 206                     converter.latex_flavor() == "pdflatex")
 207                         pdflatex_command_ = subst(command, token_from, "");
 208                 if (xelatex_command_.empty() ||
 209                     converter.latex_flavor() == "xelatex")
 210                         xelatex_command_ = subst(command, token_from, "");
 211         }
 212
 213         if (it == converterlist_.end()) {
 214                 converterlist_.push_back(converter);
 215         } else {
 216                 converter.setFrom(it->From());
 217                 converter.setTo(it->To());
 218                 *it = converter;
 219         }
 220 }
 221
 222
 223 void Converters::erase(string const & from, string const & to)
 224 {
 225         ConverterList::iterator const it =
 226                 find_if(converterlist_.begin(),
 227                         converterlist_.end(),
 228                         ConverterEqual(from, to));
 229         if (it != converterlist_.end())
 230                 converterlist_.erase(it);
 231 }
 232
 233
 234 // This method updates the pointers From and To in all the converters.
 235 // The code is not very efficient, but it doesn't matter as the number
 236 // of formats and converters is small.
 237 // Furthermore, this method is called only on startup, or after
 238 // adding/deleting a format in FormPreferences (the latter calls can be
 239 // eliminated if the formats in the Formats class are stored using a map or
 240 // a list (instead of a vector), but this will cause other problems).
 241 void Converters::update(Formats const & formats)
 242 {
 243         ConverterList::iterator it = converterlist_.begin();
 244         ConverterList::iterator end = converterlist_.end();
 245         for (; it != end; ++it) {
 246                 it->setFrom(formats.getFormat(it->from()));
 247                 it->setTo(formats.getFormat(it->to()));
 248         }
 249 }
 250
 251
 252 // This method updates the pointers From and To in the last converter.
 253 // It is called when adding a new converter in FormPreferences
 254 void Converters::updateLast(Formats const & formats)
 255 {
 256         if (converterlist_.begin() != converterlist_.end()) {
 257                 ConverterList::iterator it = converterlist_.end() - 1;
 258                 it->setFrom(formats.getFormat(it->from()));
 259                 it->setTo(formats.getFormat(it->to()));
 260         }
 261 }
 262
 263
 264 OutputParams::FLAVOR Converters::getFlavor(Graph::EdgePath const & path,
 265                                            Buffer const * buffer)
 266 {
 267         for (Graph::EdgePath::const_iterator cit = path.begin();
 268              cit != path.end(); ++cit) {
 269                 Converter const & conv = converterlist_[*cit];
 270                 if (conv.latex() || conv.need_aux()) {
 271                         if (conv.latex_flavor() == "latex")
 272                                 return OutputParams::LATEX;
 273                         if (conv.latex_flavor() == "xelatex")
 274                                 return OutputParams::XETEX;
 275                         if (conv.latex_flavor() == "lualatex")
 276                                 return OutputParams::LUATEX;
 277                         if (conv.latex_flavor() == "dvilualatex")
 278                                 return OutputParams::DVILUATEX;
 279                         if (conv.latex_flavor() == "pdflatex")
 280                                 return OutputParams::PDFLATEX;
 281                 }
 282                 if (conv.xml())
 283                         return OutputParams::XML;
 284         }
 285         return buffer ? buffer->params().getOutputFlavor()
 286                       : OutputParams::LATEX;
 287 }
 288
 289
 290 string Converters::getHyperrefDriver(Graph::EdgePath const & path)
 291 {
 292         for (Graph::EdgePath::const_iterator cit = path.begin();
 293              cit != path.end(); ++cit) {
 294                 Converter const & conv = converterlist_[*cit];
 295                 if (!conv.hyperref_driver().empty())
 296                         return conv.hyperref_driver();
 297         }
 298         return string();
 299 }
 300
 301
 302 bool Converters::checkAuth(Converter const & conv, string const & doc_fname,
 303                            bool use_shell_escape)
 304 {
 305         string conv_command = conv.command();
 306         bool const has_shell_escape = contains(conv_command, "-shell-escape")
 307                                 || contains(conv_command, "-enable-write18");
 308         if (conv.latex() && has_shell_escape && !use_shell_escape) {
 309                 docstring const shellescape_warning =
 310                       bformat(_("<p>The following LaTeX backend has been "
 311                         "configured to allow execution of external programs "
 312                         "for any document:</p>"
 313                         "<center><p><tt>%1$s</tt></p></center>"
 314                         "<p>This is a dangerous configuration. Please, "
 315                         "consider using the support offered by LyX for "
 316                         "allowing this privilege only to documents that "
 317                         "actually need it, instead.</p>"),
 318                         from_utf8(conv_command));
 319                 frontend::Alert::error(_("Security Warning"),
 320                                         shellescape_warning , false);
 321         } else if (!conv.latex())
 322                 use_shell_escape = false;
 323         if (!conv.need_auth() && !use_shell_escape)
 324                 return true;
 325         size_t const token_pos = conv_command.find("$$");
 326         bool const has_token = token_pos != string::npos;
 327         string const command = use_shell_escape && !has_shell_escape
 328                 ? (has_token ? conv_command.insert(token_pos, "-shell-escape ")
 329                              : conv_command.append(" -shell-escape"))
 330                 : conv_command;
 331         docstring const security_warning = (use_shell_escape
 332             ? bformat(_("<p>The following LaTeX backend has been requested "
 333                 "to allow execution of external programs:</p>"
 334                 "<center><p><tt>%1$s</tt></p></center>"
 335                 "<p>The external programs can execute arbitrary commands on "
 336                 "your system, including dangerous ones, if instructed to do "
 337                 "so by a maliciously crafted LyX document.</p>"),
 338               from_utf8(command))
 339             : bformat(_("<p>The requested operation requires the use of a "
 340                 "converter from %2$s to %3$s:</p>"
 341                 "<blockquote><p><tt>%1$s</tt></p></blockquote>"
 342                 "<p>This external program can execute arbitrary commands on "
 343                 "your system, including dangerous ones, if instructed to do "
 344                 "so by a maliciously crafted LyX document.</p>"),
 345               from_utf8(command), from_utf8(conv.from()),
 346               from_utf8(conv.to())));
 347         if (lyxrc.use_converter_needauth_forbidden && !use_shell_escape) {
 348                 frontend::Alert::error(
 349                     _("An external converter is disabled for security reasons"),
 350                     security_warning + _(
 351                     "<p><b>Your current preference settings forbid its execution.</b></p>"
 352                     "<p>(To change this setting, go to <i>Preferences &#x25b9; File "
 353                     "Handling &#x25b9; Converters</i> and uncheck <i>Security &#x25b9; "
 354                     "Forbid needauth converters</i>.)"), false);
 355                 return false;
 356         }
 357         if (!lyxrc.use_converter_needauth && !use_shell_escape)
 358                 return true;
 359         docstring const security_title = use_shell_escape
 360                 ? _("A LaTeX backend requires your authorization")
 361                 : _("An external converter requires your authorization");
 362         int choice;
 363         docstring const security_warning2 = security_warning + (use_shell_escape
 364                 ? _("<p>Should LaTeX backends be allowed to run external "
 365                     "programs?</p><p><b>Allow them only if you trust the "
 366                     "origin/sender of the LyX document!</b></p>")
 367                 : _("<p>Would you like to run this converter?</p>"
 368                     "<p><b>Only run if you trust the origin/sender of the LyX "
 369                     "document!</b></p>"));
 370         docstring const no = use_shell_escape
 371                                 ? _("Do &not allow") : _("Do &not run");
 372         docstring const yes = use_shell_escape ? _("A&llow") : _("&Run");
 373         docstring const always = use_shell_escape
 374                                         ? _("&Always allow for this document")
 375                                         : _("&Always run for this document");
 376         if (!doc_fname.empty()) {
 377                 LYXERR(Debug::FILES, "looking up: " << doc_fname);
 378                 bool authorized = use_shell_escape
 379                         ? theSession().shellescapeFiles().findAuth(doc_fname)
 380                         : theSession().authFiles().find(doc_fname);
 381                 if (!authorized) {
 382                         choice = frontend::Alert::prompt(security_title,
 383                                                          security_warning2,
 384                                                          0, 0, no, yes, always);
 385                         if (choice == 2) {
 386                                 if (use_shell_escape)
 387                                         theSession().shellescapeFiles().insert(doc_fname, true);
 388                                 else
 389                                         theSession().authFiles().insert(doc_fname);
 390                         }
 391                 } else {
 392                         choice = 1;
 393                 }
 394         } else {
 395                 choice = frontend::Alert::prompt(security_title,
 396                                                  security_warning2,
 397                                                  0, 0, no, yes);
 398         }
 399         return choice != 0;
 400 }
 401
 402
 403 Converters::RetVal Converters::convert(Buffer const * buffer,
 404                          FileName const & from_file, FileName const & to_file,
 405                          FileName const & orig_from,
 406                          string const & from_format, string const & to_format,
 407                          ErrorList & errorList, int conversionflags)
 408 {
 409         if (from_format == to_format)
 410                 return move(from_format, from_file, to_file, false) ?
 411                       SUCCESS : FAILURE;
 412
 413         if ((conversionflags & try_cache) &&
 414             ConverterCache::get().inCache(orig_from, to_format))
 415                 return ConverterCache::get().copy(orig_from, to_format, to_file) ?
 416                       SUCCESS : FAILURE;
 417
 418         Graph::EdgePath edgepath = getPath(from_format, to_format);
 419         if (edgepath.empty()) {
 420                 if (conversionflags & try_default) {
 421                         // if no special converter defined, then we take the
 422                         // default one from ImageMagic.
 423                         string const from_ext = from_format.empty() ?
 424                                 getExtension(from_file.absFileName()) :
 425                                 theFormats().extension(from_format);
 426                         string const to_ext = theFormats().extension(to_format);
 427                         string const command =
 428                                 os::python() + ' ' +
 429                                 quoteName(libFileSearch("scripts", "convertDefault.py").toFilesystemEncoding()) +
 430                                 ' ' + from_ext + ' ' +
 431                                 quoteName(from_file.toFilesystemEncoding()) +
 432                                 ' ' + to_ext + ' ' +
 433                                 quoteName(to_file.toFilesystemEncoding());
 434                         LYXERR(Debug::FILES, "No converter defined! "
 435                                    "I use convertDefault.py:\n\t" << command);
 436                         Systemcall one;
 437                         Systemcall::Starttype starttype =
 438                                 (buffer && buffer->isClone()) ?
 439                                         Systemcall::WaitLoop : Systemcall::Wait;
 440                         int const exitval = one.startscript(starttype, command,
 441                                         buffer ? buffer->filePath() : string(),
 442                                         buffer ? buffer->layoutPos() : string());
 443                         if (exitval == Systemcall::KILLED) {
 444                                 frontend::Alert::warning(
 445                                         _("Converter killed"),
 446                                         bformat(_("The following converter was killed by the user.\n %1$s\n"),
 447                                                 from_utf8(command)));
 448                                 return KILLED;
 449                         }
 450                         if (to_file.isReadableFile()) {
 451                                 if (conversionflags & try_cache)
 452                                         ConverterCache::get().add(orig_from,
 453                                                         to_format, to_file);
 454                                 return SUCCESS;
 455                         }
 456                 }
 457
 458                 // only warn once per session and per file type
 459                 static std::map<string, string> warned;
 460                 if (warned.find(from_format) != warned.end() && warned.find(from_format)->second == to_format) {
 461                         return FAILURE;
 462                 }
 463                 warned.insert(make_pair(from_format, to_format));
 464
 465                 Alert::error(_("Cannot convert file"),
 466                              bformat(_("No information for converting %1$s "
 467                                                     "format files to %2$s.\n"
 468                                                     "Define a converter in the preferences."),
 469                                                         from_ascii(from_format), from_ascii(to_format)));
 470                 return FAILURE;
 471         }
 472
 473         // buffer is only invalid for importing, and then runparams is not
 474         // used anyway.
 475         OutputParams runparams(buffer ? &buffer->params().encoding() : 0);
 476         runparams.flavor = getFlavor(edgepath, buffer);
 477
 478         if (buffer) {
 479                 BufferParams const & bp = buffer->params();
 480                 runparams.use_japanese =
 481                         (bp.bufferFormat() == "latex"
 482                          || suffixIs(bp.bufferFormat(), "-ja"))
 483                         && bp.encoding().package() == Encoding::japanese;
 484                 runparams.use_indices = bp.use_indices;
 485                 runparams.bibtex_command = bp.bibtexCommand();
 486                 runparams.index_command = (bp.index_command == "default") ?
 487                         string() : bp.index_command;
 488                 runparams.document_language = bp.language->babel();
 489                 // Some macros rely on font encoding
 490                 runparams.main_fontenc = bp.main_font_encoding();
 491                 runparams.only_childbibs = !bp.useBiblatex()
 492                                 && !bp.useBibtopic()
 493                                 && bp.multibib == "child";
 494         }
 495
 496         // Some converters (e.g. lilypond) can only output files to the
 497         // current directory, so we need to change the current directory.
 498         // This has the added benefit that all other files that may be
 499         // generated by the converter are deleted when LyX closes and do not
 500         // clutter the real working directory.
 501         // FIXME: This does not work if path is an UNC path on windows
 502         //        (bug 6127).
 503         string const path(onlyPath(from_file.absFileName()));
 504         // Prevent the compiler from optimizing away p
 505         FileName pp(path);
 506         PathChanger p(pp);
 507
 508         // empty the error list before any new conversion takes place.
 509         errorList.clear();
 510
 511         bool run_latex = false;
 512         string from_base = changeExtension(from_file.absFileName(), "");
 513         string to_base = changeExtension(to_file.absFileName(), "");
 514         FileName infile;
 515         FileName outfile = from_file;
 516         for (Graph::EdgePath::const_iterator cit = edgepath.begin();
 517              cit != edgepath.end(); ++cit) {
 518                 Converter const & conv = converterlist_[*cit];
 519                 bool dummy = conv.To()->dummy() && conv.to() != "program";
 520                 if (!dummy) {
 521                         LYXERR(Debug::FILES, "Converting from  "
 522                                << conv.from() << " to " << conv.to());
 523                 }
 524                 infile = outfile;
 525                 outfile = FileName(conv.result_file().empty()
 526                         ? changeExtension(from_file.absFileName(), conv.To()->extension())
 527                         : addName(subst(conv.result_dir(),
 528                                         token_base, from_base),
 529                                   subst(conv.result_file(),
 530                                         token_base, onlyFileName(from_base))));
 531
 532                 // if input and output files are equal, we use a
 533                 // temporary file as intermediary (JMarc)
 534                 FileName real_outfile;
 535                 if (!conv.result_file().empty())
 536                         real_outfile = FileName(changeExtension(from_file.absFileName(),
 537                                 conv.To()->extension()));
 538                 if (outfile == infile) {
 539                         real_outfile = infile;
 540                         // when importing, a buffer does not necessarily exist
 541                         if (buffer)
 542                                 outfile = FileName(addName(buffer->temppath(), "tmpfile.out"));
 543                         else
 544                                 outfile = FileName(addName(package().temp_dir().absFileName(),
 545                                                    "tmpfile.out"));
 546                 }
 547
 548                 if (buffer && buffer->params().use_minted
 549                     && lyxrc.pygmentize_command.empty() && conv.latex()) {
 550                         bool dowarn = false;
 551                         // Warn only if listings insets are actually used
 552                         for (Paragraph const & par : buffer->paragraphs()) {
 553                                 InsetList const & insets = par.insetList();
 554                                 pos_type lstpos = insets.find(LISTINGS_CODE, 0);
 555                                 pos_type incpos = insets.find(INCLUDE_CODE, 0);
 556                                 if (incpos >= 0) {
 557                                         InsetInclude const * include =
 558                                                 static_cast<InsetInclude *>
 559                                                         (insets.get(incpos));
 560                                         if (include->params().getCmdName() !=
 561                                                                 "inputminted") {
 562                                                 incpos = -1;
 563                                         }
 564                                 }
 565                                 if (lstpos >= 0 || incpos >= 0) {
 566                                         dowarn = true;
 567                                         break;
 568                                 }
 569                         }
 570                         if (dowarn) {
 571                                 Alert::warning(_("Pygments driver command not found!"),
 572                                     _("The driver command necessary to use the minted package\n"
 573                                       "(pygmentize) has not been found. Make sure you have\n"
 574                                       "the python-pygments module installed or, if the driver\n"
 575                                       "is named differently, to add the following line to the\n"
 576                                       "document preamble:\n\n"
 577                                       "\\AtBeginDocument{\\renewcommand{\\MintedPygmentize}{driver}}\n\n"
 578                                       "where 'driver' is name of the driver command."));
 579                         }
 580                 }
 581
 582                 if (!checkAuth(conv, buffer ? buffer->absFileName() : string(),
 583                                buffer && buffer->params().shell_escape))
 584                         return FAILURE;
 585
 586                 if (conv.latex()) {
 587                         // We are not importing, we have a buffer
 588                         LATTEST(buffer);
 589                         run_latex = true;
 590                         string command = conv.command();
 591                         command = subst(command, token_from, "");
 592                         command = subst(command, token_latex_encoding,
 593                                         buffer->params().encoding().latexName());
 594                         if (buffer->params().shell_escape
 595                             && !contains(command, "-shell-escape"))
 596                                 command += " -shell-escape ";
 597                         LYXERR(Debug::FILES, "Running " << command);
 598                         // FIXME KILLED
 599                         // Check changed return value here.
 600                         RetVal const retval = runLaTeX(*buffer, command, runparams, errorList);
 601                                 if (retval != SUCCESS)
 602                                         return retval;
 603                 } else {
 604                         if (conv.need_aux() && !run_latex) {
 605                                 // We are not importing, we have a buffer
 606                                 LATTEST(buffer);
 607                                 string command;
 608                                 switch (runparams.flavor) {
 609                                 case OutputParams::DVILUATEX:
 610                                         command = dvilualatex_command_;
 611                                         break;
 612                                 case OutputParams::LUATEX:
 613                                         command = lualatex_command_;
 614                                         break;
 615                                 case OutputParams::PDFLATEX:
 616                                         command = pdflatex_command_;
 617                                         break;
 618                                 case OutputParams::XETEX:
 619                                         command = xelatex_command_;
 620                                         break;
 621                                 default:
 622                                         command = latex_command_;
 623                                         break;
 624                                 }
 625                                 if (!command.empty()) {
 626                                         LYXERR(Debug::FILES, "Running "
 627                                                 << command
 628                                                 << " to update aux file");
 629                                         // FIXME KILLED
 630                                         // Check changed return value here.
 631                                         RetVal const retval = runLaTeX(*buffer, command, runparams, errorList);
 632                                                 if (retval != SUCCESS)
 633                                                         return retval;
 634                                 }
 635                         }
 636
 637                         // FIXME UNICODE
 638                         string const infile2 =
 639                                 to_utf8(makeRelPath(from_utf8(infile.absFileName()), from_utf8(path)));
 640                         string const outfile2 =
 641                                 to_utf8(makeRelPath(from_utf8(outfile.absFileName()), from_utf8(path)));
 642
 643                         string command = conv.command();
 644                         command = subst(command, token_from, quoteName(infile2));
 645                         command = subst(command, token_base, quoteName(from_base));
 646                         command = subst(command, token_to, quoteName(outfile2));
 647                         command = subst(command, token_path, quoteName(onlyPath(infile.absFileName())));
 648                         command = subst(command, token_orig_path, quoteName(onlyPath(orig_from.absFileName())));
 649                         command = subst(command, token_orig_from, quoteName(onlyFileName(orig_from.absFileName())));
 650                         command = subst(command, token_encoding, buffer ? buffer->params().encoding().iconvName() : string());
 651
 652                         if (!conv.parselog().empty())
 653                                 command += " 2> " + quoteName(infile2 + ".out");
 654
 655                         // it is not actually not necessary to test for buffer here,
 656                         // but it pleases coverity.
 657                         if (buffer && conv.from() == "dvi" && conv.to() == "ps")
 658                                 command = add_options(command,
 659                                                       buffer->params().dvips_options());
 660                         else if (buffer && conv.from() == "dvi" && prefixIs(conv.to(), "pdf"))
 661                                 command = add_options(command,
 662                                                       dvipdfm_options(buffer->params()));
 663
 664                         LYXERR(Debug::FILES, "Calling " << command);
 665                         if (buffer)
 666                                 buffer->message(_("Executing command: ")
 667                                 + from_utf8(command));
 668
 669                         Systemcall one;
 670                         int res;
 671                         if (dummy) {
 672                                 res = one.startscript(Systemcall::DontWait,
 673                                         to_filesystem8bit(from_utf8(command)),
 674                                         buffer ? buffer->filePath() : string(),
 675                                         buffer ? buffer->layoutPos() : string());
 676                                 // We're not waiting for the result, so we can't do anything
 677                                 // else here.
 678                         } else {
 679                                 Systemcall::Starttype starttype =
 680                                                 (buffer && buffer->isClone()) ?
 681                                                         Systemcall::WaitLoop : Systemcall::Wait;
 682                                 res = one.startscript(starttype,
 683                                                 to_filesystem8bit(from_utf8(command)),
 684                                                 buffer ? buffer->filePath()
 685                                                        : string(),
 686                                                 buffer ? buffer->layoutPos()
 687                                                        : string());
 688                                 if (res == Systemcall::KILLED) {
 689                                         frontend::Alert::warning(
 690                                                 _("Converter killed"),
 691                                                 bformat(_("The following converter was killed by the user.\n %1$s\n"),
 692                                                         from_utf8(command)));
 693                                         return KILLED;
 694                                 }
 695
 696                                 if (!real_outfile.empty()) {
 697                                         Mover const & mover = getMover(conv.to());
 698                                         if (!mover.rename(outfile, real_outfile))
 699                                                 res = -1;
 700                                         else
 701                                                 LYXERR(Debug::FILES, "renaming file " << outfile
 702                                                         << " to " << real_outfile);
 703                                         // Finally, don't forget to tell any future
 704                                         // converters to use the renamed file...
 705                                         outfile = real_outfile;
 706                                 }
 707
 708                                 if (!conv.parselog().empty()) {
 709                                         string const logfile =  infile2 + ".log";
 710                                         string const command2 = conv.parselog() +
 711                                                 " < " + quoteName(infile2 + ".out") +
 712                                                 " > " + quoteName(logfile);
 713                                         res = one.startscript(starttype,
 714                                                 to_filesystem8bit(from_utf8(command2)),
 715                                                 buffer->filePath(),
 716                                                 buffer->layoutPos());
 717                                         if (res == Systemcall::KILLED) {
 718                                                 frontend::Alert::warning(
 719                                                         _("Converter killed"),
 720                                                         bformat(_("The following converter was killed by the user.\n %1$s\n"),
 721                                                                 from_utf8(command)));
 722                                                 return KILLED;
 723                                         }
 724                                         if (!scanLog(*buffer, command, makeAbsPath(logfile, path), errorList))
 725                                                 return FAILURE;
 726                                 }
 727                         }
 728
 729                         if (res) {
 730                                 if (res == Systemcall::KILLED) {
 731                                         Alert::information(_("Process Killed"),
 732                                                 bformat(_("The conversion process was killed while running:\n%1$s"),
 733                                                         wrapParas(from_utf8(command))));
 734                                         return KILLED;
 735                                 }
 736                                 if (res == Systemcall::TIMEOUT) {
 737                                         Alert::information(_("Process Timed Out"),
 738                                                 bformat(_("The conversion process:\n%1$s\ntimed out before completing."),
 739                                                         wrapParas(from_utf8(command))));
 740                                         return KILLED;
 741                                 }
 742                                 if (conv.to() == "program") {
 743                                         Alert::error(_("Build errors"),
 744                                                 _("There were errors during the build process."));
 745                                 } else {
 746 // FIXME: this should go out of here. For example, here we cannot say if
 747 // it is a document (.lyx) or something else. Same goes for elsewhere.
 748                                         Alert::error(_("Cannot convert file"),
 749                                                 bformat(_("An error occurred while running:\n%1$s"),
 750                                                 wrapParas(from_utf8(command))));
 751                                 }
 752                                 return FAILURE;
 753                         }
 754                 }
 755         }
 756
 757         Converter const & conv = converterlist_[edgepath.back()];
 758         if (conv.To()->dummy())
 759                 return SUCCESS;
 760
 761         if (!conv.result_dir().empty()) {
 762                 // The converter has put the file(s) in a directory.
 763                 // In this case we ignore the given to_file.
 764                 if (from_base != to_base) {
 765                         string const from = subst(conv.result_dir(),
 766                                             token_base, from_base);
 767                         string const to = subst(conv.result_dir(),
 768                                           token_base, to_base);
 769                         Mover const & mover = getMover(conv.from());
 770                         if (!mover.rename(FileName(from), FileName(to))) {
 771                                 Alert::error(_("Cannot convert file"),
 772                                         bformat(_("Could not move a temporary directory from %1$s to %2$s."),
 773                                                 from_utf8(from), from_utf8(to)));
 774                                 return FAILURE;
 775                         }
 776                 }
 777                 return SUCCESS;
 778         } else {
 779                 if (conversionflags & try_cache)
 780                         ConverterCache::get().add(orig_from, to_format, outfile);
 781                 return move(conv.to(), outfile, to_file, conv.latex()) ? SUCCESS : FAILURE;
 782         }
 783 }
 784
 785
 786 bool Converters::move(string const & fmt,
 787                       FileName const & from, FileName const & to, bool copy)
 788 {
 789         if (from == to)
 790                 return true;
 791
 792         bool no_errors = true;
 793         string const path = onlyPath(from.absFileName());
 794         string const base = onlyFileName(removeExtension(from.absFileName()));
 795         string const to_base = removeExtension(to.absFileName());
 796         string const to_extension = getExtension(to.absFileName());
 797
 798         support::FileNameList const files = FileName(path).dirList(getExtension(from.absFileName()));
 799         for (support::FileNameList::const_iterator it = files.begin();
 800              it != files.end(); ++it) {
 801                 string const from2 = it->absFileName();
 802                 string const file2 = onlyFileName(from2);
 803                 if (prefixIs(file2, base)) {
 804                         string const to2 = changeExtension(
 805                                 to_base + file2.substr(base.length()),
 806                                 to_extension);
 807                         LYXERR(Debug::FILES, "moving " << from2 << " to " << to2);
 808
 809                         Mover const & mover = getMover(fmt);
 810                         bool const moved = copy
 811                                 ? mover.copy(*it, FileName(to2))
 812                                 : mover.rename(*it, FileName(to2));
 813                         if (!moved && no_errors) {
 814                                 Alert::error(_("Cannot convert file"),
 815                                         bformat(copy ?
 816                                                 _("Could not copy a temporary file from %1$s to %2$s.") :
 817                                                 _("Could not move a temporary file from %1$s to %2$s."),
 818                                                 from_utf8(from2), from_utf8(to2)));
 819                                 no_errors = false;
 820                         }
 821                 }
 822         }
 823         return no_errors;
 824 }
 825
 826
 827 bool Converters::formatIsUsed(string const & format)
 828 {
 829         ConverterList::const_iterator cit = converterlist_.begin();
 830         ConverterList::const_iterator end = converterlist_.end();
 831         for (; cit != end; ++cit) {
 832                 if (cit->from() == format || cit->to() == format)
 833                         return true;
 834         }
 835         return false;
 836 }
 837
 838
 839 bool Converters::scanLog(Buffer const & buffer, string const & /*command*/,
 840                          FileName const & filename, ErrorList & errorList)
 841 {
 842         OutputParams runparams(0);
 843         runparams.flavor = OutputParams::LATEX;
 844         LaTeX latex("", runparams, filename);
 845         TeXErrors terr;
 846         int const result = latex.scanLogFile(terr);
 847
 848         if (result & LaTeX::ERRORS)
 849                 buffer.bufferErrors(terr, errorList);
 850
 851         return true;
 852 }
 853
 854
 855 Converters::RetVal Converters::runLaTeX(Buffer const & buffer, string const & command,
 856                           OutputParams const & runparams, ErrorList & errorList)
 857 {
 858         buffer.setBusy(true);
 859         buffer.message(_("Running LaTeX..."));
 860
 861         // do the LaTeX run(s)
 862         string const name = buffer.latexName();
 863         LaTeX latex(command, runparams, FileName(makeAbsPath(name)),
 864                     buffer.filePath(), buffer.layoutPos(),
 865                     buffer.isClone(), buffer.lastPreviewError());
 866         TeXErrors terr;
 867         // The connection closes itself at the end of the scope when latex is
 868         // destroyed. One cannot close (and destroy) buffer while the converter is
 869         // running.
 870         latex.message.connect([&buffer](docstring const & msg){
 871                         buffer.message(msg);
 872                 });
 873         int const result = latex.run(terr);
 874
 875         if (result == Systemcall::KILLED) {
 876                 Alert::error(_("Export canceled"),
 877                         _("The export process was terminated by the user."));
 878                 return KILLED;
 879         }
 880
 881         if (result & LaTeX::ERRORS)
 882                 buffer.bufferErrors(terr, errorList);
 883
 884         if (!errorList.empty()) {
 885           // We will show the LaTeX Errors GUI later which contains
 886           // specific error messages so it would be repetitive to give
 887           // e.g. the "finished with an error" dialog in addition.
 888         }
 889         else if (result & LaTeX::NO_LOGFILE) {
 890                 docstring const str =
 891                         bformat(_("LaTeX did not run successfully. "
 892                                                "Additionally, LyX could not locate "
 893                                                "the LaTeX log %1$s."), from_utf8(name));
 894                 Alert::error(_("LaTeX failed"), str);
 895         } else if (result & LaTeX::NONZERO_ERROR) {
 896                 docstring const str =
 897                         bformat(_( "The external program\n%1$s\n"
 898                               "finished with an error. "
 899                               "It is recommended you fix the cause of the external "
 900                               "program's error (check the logs). "), from_utf8(command));
 901                 Alert::error(_("LaTeX failed"), str);
 902         } else if (result & LaTeX::NO_OUTPUT) {
 903                 Alert::warning(_("Output is empty"),
 904                                _("No output file was generated."));
 905         }
 906
 907         buffer.setBusy(false);
 908
 909         int const ERROR_MASK =
 910                         LaTeX::NO_LOGFILE |
 911                         LaTeX::ERRORS |
 912                         LaTeX::NO_OUTPUT;
 913
 914         return (result & ERROR_MASK) == 0 ? SUCCESS : FAILURE;
 915 }
 916
 917
 918
 919 void Converters::buildGraph()
 920 {
 921         // clear graph's data structures
 922         G_.init(theFormats().size());
 923         // each of the converters knows how to convert one format to another
 924         // so, for each of them, we create an arrow on the graph, going from
 925         // the one to the other
 926         ConverterList::iterator it = converterlist_.begin();
 927         ConverterList::iterator const end = converterlist_.end();
 928         for (; it != end ; ++it) {
 929                 int const from = theFormats().getNumber(it->from());
 930                 int const to   = theFormats().getNumber(it->to());
 931                 LASSERT(from >= 0, continue);
 932                 LASSERT(to >= 0, continue);
 933                 G_.addEdge(from, to);
 934         }
 935 }
 936
 937
 938 FormatList const Converters::intToFormat(vector<int> const & input)
 939 {
 940         FormatList result(input.size());
 941
 942         vector<int>::const_iterator it = input.begin();
 943         vector<int>::const_iterator const end = input.end();
 944         FormatList::iterator rit = result.begin();
 945         for ( ; it != end; ++it, ++rit) {
 946                 *rit = &theFormats().get(*it);
 947         }
 948         return result;
 949 }
 950
 951
 952 FormatList const Converters::getReachableTo(string const & target,
 953                 bool const clear_visited)
 954 {
 955         vector<int> const & reachablesto =
 956                 G_.getReachableTo(theFormats().getNumber(target), clear_visited);
 957
 958         return intToFormat(reachablesto);
 959 }
 960
 961
 962 FormatList const Converters::getReachable(string const & from,
 963                 bool const only_viewable, bool const clear_visited,
 964                 set<string> const & excludes)
 965 {
 966         set<int> excluded_numbers;
 967
 968         set<string>::const_iterator sit = excludes.begin();
 969         set<string>::const_iterator const end = excludes.end();
 970         for (; sit != end; ++sit)
 971                 excluded_numbers.insert(theFormats().getNumber(*sit));
 972
 973         vector<int> const & reachables =
 974                 G_.getReachable(theFormats().getNumber(from),
 975                                 only_viewable,
 976                                 clear_visited,
 977                                 excluded_numbers);
 978
 979         return intToFormat(reachables);
 980 }
 981
 982
 983 bool Converters::isReachable(string const & from, string const & to)
 984 {
 985         return G_.isReachable(theFormats().getNumber(from),
 986                               theFormats().getNumber(to));
 987 }
 988
 989
 990 Graph::EdgePath Converters::getPath(string const & from, string const & to)
 991 {
 992         return G_.getPath(theFormats().getNumber(from),
 993                           theFormats().getNumber(to));
 994 }
 995
 996
 997 FormatList Converters::importableFormats()
 998 {
 999         vector<string> l = loaders();
1000         FormatList result = getReachableTo(l[0], true);
1001         vector<string>::const_iterator it = l.begin() + 1;
1002         vector<string>::const_iterator en = l.end();
1003         for (; it != en; ++it) {
1004                 FormatList r = getReachableTo(*it, false);
1005                 result.insert(result.end(), r.begin(), r.end());
1006         }
1007         return result;
1008 }
1009
1010
1011 FormatList Converters::exportableFormats(bool only_viewable)
1012 {
1013         vector<string> s = savers();
1014         FormatList result = getReachable(s[0], only_viewable, true);
1015         vector<string>::const_iterator it = s.begin() + 1;
1016         vector<string>::const_iterator en = s.end();
1017         for (; it != en; ++it) {
1018                  FormatList r = getReachable(*it, only_viewable, false);
1019                 result.insert(result.end(), r.begin(), r.end());
1020         }
1021         return result;
1022 }
1023
1024
1025 vector<string> Converters::loaders() const
1026 {
1027         vector<string> v;
1028         v.push_back("lyx");
1029         v.push_back("text");
1030         v.push_back("textparagraph");
1031         return v;
1032 }
1033
1034
1035 vector<string> Converters::savers() const
1036 {
1037         vector<string> v;
1038         v.push_back("docbook");
1039         v.push_back("latex");
1040         v.push_back("literate");
1041         v.push_back("luatex");
1042         v.push_back("dviluatex");
1043         v.push_back("lyx");
1044         v.push_back("xhtml");
1045         v.push_back("pdflatex");
1046         v.push_back("platex");
1047         v.push_back("text");
1048         v.push_back("xetex");
1049         return v;
1050 }
1051
1052
1053 } // namespace lyx