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 "BufferParams.h"
  17 #include "ConverterCache.h"
  18 #include "TextClass.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 "OutputParams.h"
  28 #include "ParagraphList.h"
  29 #include "Session.h"
  30
  31 #include "frontends/alert.h"
  32
  33 #include "insets/InsetInclude.h"
  34
  35 #include "support/debug.h"
  36 #include "support/FileNameList.h"
  37 #include "support/filetools.h"
  38 #include "support/gettext.h"
  39 #include "support/lassert.h"
  40 #include "support/lstrings.h"
  41 #include "support/os.h"
  42 #include "support/Package.h"
  43 #include "support/PathChanger.h"
  44 #include "support/Systemcall.h"
  45
  46 using namespace std;
  47 using namespace lyx::support;
  48
  49 namespace lyx {
  50
  51 namespace Alert = lyx::frontend::Alert;
  52
  53
  54 namespace {
  55
  56 string const token_from("$$i");
  57 string const token_base("$$b");
  58 string const token_to("$$o");
  59 string const token_path("$$p");
  60 string const token_orig_path("$$r");
  61 string const token_orig_from("$$f");
  62 string const token_textclass("$$c");
  63 string const token_modules("$$m");
  64 string const token_encoding("$$e");
  65 string const token_latex_encoding("$$E");
  66 string const token_python("$${python}");
  67
  68 string const add_options(string const & command, string const & options)
  69 {
  70         string head;
  71         string const tail = split(command, head, ' ');
  72         return head + ' ' + options + ' ' + tail;
  73 }
  74
  75
  76 string const dvipdfm_options(BufferParams const & bp)
  77 {
  78         string result;
  79
  80         if (bp.papersize != PAPER_CUSTOM) {
  81                 string const paper_size = bp.paperSizeName(BufferParams::DVIPDFM);
  82                 if (!paper_size.empty())
  83                         result = "-p "+ paper_size;
  84
  85                 if (bp.orientation == ORIENTATION_LANDSCAPE)
  86                         result += " -l";
  87         }
  88
  89         return result;
  90 }
  91
  92
  93 class ConverterEqual {
  94 public:
  95         ConverterEqual(string const & from, string const & to)
  96                 : from_(from), to_(to) {}
  97         bool operator()(Converter const & c) const {
  98                 return c.from() == from_ && c.to() == to_;
  99         }
 100 private:
 101         string const from_;
 102         string const to_;
 103 };
 104
 105 } // namespace
 106
 107
 108 Converter::Converter(string const & f, string const & t,
 109                      string const & c, string const & l)
 110         : from_(f), to_(t), command_(c), flags_(l),
 111           From_(nullptr), To_(nullptr), latex_(false), docbook_(false),
 112           need_aux_(false), nice_(false), need_auth_(false)
 113 {}
 114
 115
 116 void Converter::readFlags()
 117 {
 118         string flag_list(flags_);
 119         while (!flag_list.empty()) {
 120                 string flag_name, flag_value;
 121                 flag_list = split(flag_list, flag_value, ',');
 122                 flag_value = split(flag_value, flag_name, '=');
 123                 if (flag_name == "latex") {
 124                         latex_ = true;
 125                         latex_flavor_ = flag_value.empty() ?
 126                                 "latex" : flag_value;
 127                 } else if (flag_name == "xml")
 128                         docbook_ = true;
 129                 else if (flag_name == "needaux") {
 130                         need_aux_ = true;
 131                         latex_flavor_ = flag_value.empty() ?
 132                                 "latex" : flag_value;
 133                 } else if (flag_name == "resultdir")
 134                         result_dir_ = (flag_value.empty())
 135                                 ? token_base : flag_value;
 136                 else if (flag_name == "resultfile")
 137                         result_file_ = flag_value;
 138                 else if (flag_name == "parselog")
 139                         parselog_ = flag_value;
 140                 else if (flag_name == "nice")
 141                         nice_ = true;
 142                 else if (flag_name == "needauth")
 143                         need_auth_ = true;
 144                 else if (flag_name == "hyperref-driver")
 145                         href_driver_ = flag_value;
 146         }
 147         if (!result_dir_.empty() && result_file_.empty())
 148                 result_file_ = "index." + theFormats().extension(to_);
 149         //if (!contains(command, token_from))
 150         //      latex = true;
 151 }
 152
 153
 154 void Converter::setCommand(std::string const & command)
 155 {
 156         command_ = subst(command, token_python, os::python());
 157 }
 158
 159
 160 Converter const * Converters::getConverter(string const & from,
 161                                             string const & to) const
 162 {
 163         ConverterList::const_iterator const cit =
 164                 find_if(converterlist_.begin(), converterlist_.end(),
 165                         ConverterEqual(from, to));
 166         if (cit != converterlist_.end())
 167                 return &(*cit);
 168         else
 169                 return nullptr;
 170 }
 171
 172
 173 int Converters::getNumber(string const & from, string const & to) const
 174 {
 175         ConverterList::const_iterator const cit =
 176                 find_if(converterlist_.begin(), converterlist_.end(),
 177                         ConverterEqual(from, to));
 178         if (cit != converterlist_.end())
 179                 return distance(converterlist_.begin(), cit);
 180         else
 181                 return -1;
 182 }
 183
 184
 185 void Converters::add(string const & from, string const & to,
 186                      string const & command, string const & flags)
 187 {
 188         theFormats().add(from);
 189         theFormats().add(to);
 190         ConverterList::iterator it = find_if(converterlist_.begin(),
 191                                              converterlist_.end(),
 192                                              ConverterEqual(from , to));
 193
 194         Converter converter(from, to, command, flags);
 195         if (it != converterlist_.end() && !flags.empty() && flags[0] == '*') {
 196                 converter = *it;
 197                 converter.setCommand(command);
 198                 converter.setFlags(flags);
 199         }
 200         converter.readFlags();
 201
 202         // The latex_command is used to update the .aux file when running
 203         // a converter that uses it.
 204         if (converter.latex()) {
 205                 if (latex_command_.empty() ||
 206                     converter.latex_flavor() == "latex")
 207                         latex_command_ = subst(command, token_from, "");
 208                 if (dvilualatex_command_.empty() ||
 209                     converter.latex_flavor() == "dvilualatex")
 210                         dvilualatex_command_ = subst(command, token_from, "");
 211                 if (lualatex_command_.empty() ||
 212                     converter.latex_flavor() == "lualatex")
 213                         lualatex_command_ = subst(command, token_from, "");
 214                 if (pdflatex_command_.empty() ||
 215                     converter.latex_flavor() == "pdflatex")
 216                         pdflatex_command_ = subst(command, token_from, "");
 217                 if (xelatex_command_.empty() ||
 218                     converter.latex_flavor() == "xelatex")
 219                         xelatex_command_ = subst(command, token_from, "");
 220         }
 221
 222         if (it == converterlist_.end()) {
 223                 converterlist_.push_back(converter);
 224         } else {
 225                 converter.setFrom(it->From());
 226                 converter.setTo(it->To());
 227                 *it = converter;
 228         }
 229 }
 230
 231
 232 void Converters::erase(string const & from, string const & to)
 233 {
 234         ConverterList::iterator const it =
 235                 find_if(converterlist_.begin(),
 236                         converterlist_.end(),
 237                         ConverterEqual(from, to));
 238         if (it != converterlist_.end())
 239                 converterlist_.erase(it);
 240 }
 241
 242
 243 // This method updates the pointers From and To in all the converters.
 244 // The code is not very efficient, but it doesn't matter as the number
 245 // of formats and converters is small.
 246 // Furthermore, this method is called only on startup, or after
 247 // adding/deleting a format in FormPreferences (the latter calls can be
 248 // eliminated if the formats in the Formats class are stored using a map or
 249 // a list (instead of a vector), but this will cause other problems).
 250 void Converters::update(Formats const & formats)
 251 {
 252         for (auto & cv : converterlist_) {
 253                 cv.setFrom(formats.getFormat(cv.from()));
 254                 cv.setTo(formats.getFormat(cv.to()));
 255         }
 256 }
 257
 258
 259 // This method updates the pointers From and To in the last converter.
 260 // It is called when adding a new converter in FormPreferences
 261 void Converters::updateLast(Formats const & formats)
 262 {
 263         if (converterlist_.begin() != converterlist_.end()) {
 264                 ConverterList::iterator it = converterlist_.end() - 1;
 265                 it->setFrom(formats.getFormat(it->from()));
 266                 it->setTo(formats.getFormat(it->to()));
 267         }
 268 }
 269
 270
 271 Flavor Converters::getFlavor(Graph::EdgePath const & path,
 272                                            Buffer const * buffer) const
 273 {
 274         for (auto const & edge : path) {
 275                 Converter const & conv = converterlist_[edge];
 276                 if (conv.latex() || conv.need_aux()) {
 277                         if (conv.latex_flavor() == "latex")
 278                                 return Flavor::LaTeX;
 279                         if (conv.latex_flavor() == "xelatex")
 280                                 return Flavor::XeTeX;
 281                         if (conv.latex_flavor() == "lualatex")
 282                                 return Flavor::LuaTeX;
 283                         if (conv.latex_flavor() == "dvilualatex")
 284                                 return Flavor::DviLuaTeX;
 285                         if (conv.latex_flavor() == "pdflatex")
 286                                 return Flavor::PdfLaTeX;
 287                 }
 288                 if (conv.docbook())
 289                         return Flavor::DocBook5;
 290         }
 291         return buffer ? buffer->params().getOutputFlavor()
 292                       : Flavor::LaTeX;
 293 }
 294
 295
 296 string Converters::getHyperrefDriver(Graph::EdgePath const & path) const
 297 {
 298         for (auto const & edge : path) {
 299                 Converter const & conv = converterlist_[edge];
 300                 if (!conv.hyperref_driver().empty())
 301                         return conv.hyperref_driver();
 302         }
 303         return string();
 304 }
 305
 306
 307 bool Converters::checkAuth(Converter const & conv, string const & doc_fname,
 308                            bool use_shell_escape)
 309 {
 310         string conv_command = conv.command();
 311         bool const has_shell_escape = contains(conv_command, "-shell-escape")
 312                                 || contains(conv_command, "-enable-write18");
 313         if (conv.latex() && has_shell_escape && !use_shell_escape) {
 314                 docstring const shellescape_warning =
 315                       bformat(_("<p>The following LaTeX backend has been "
 316                         "configured to allow execution of external programs "
 317                         "for any document:</p>"
 318                         "<center><p><tt>%1$s</tt></p></center>"
 319                         "<p>This is a dangerous configuration. Please, "
 320                         "consider using the support offered by LyX for "
 321                         "allowing this privilege only to documents that "
 322                         "actually need it, instead.</p>"),
 323                         from_utf8(conv_command));
 324                 frontend::Alert::error(_("Security Warning"),
 325                                         shellescape_warning , false);
 326         } else if (!conv.latex())
 327                 use_shell_escape = false;
 328         if (!conv.need_auth() && !use_shell_escape)
 329                 return true;
 330         size_t const token_pos = conv_command.find("$$");
 331         bool const has_token = token_pos != string::npos;
 332         string const command = use_shell_escape && !has_shell_escape
 333                 ? (has_token ? conv_command.insert(token_pos, "-shell-escape ")
 334                              : conv_command.append(" -shell-escape"))
 335                 : conv_command;
 336         docstring const security_warning = (use_shell_escape
 337             ? bformat(_("<p>The following LaTeX backend has been requested "
 338                 "to allow execution of external programs:</p>"
 339                 "<center><p><tt>%1$s</tt></p></center>"
 340                 "<p>The external programs can execute arbitrary commands on "
 341                 "your system, including dangerous ones, if instructed to do "
 342                 "so by a maliciously crafted LyX document.</p>"),
 343               from_utf8(command))
 344             : bformat(_("<p>The requested operation requires the use of a "
 345                 "converter from %2$s to %3$s:</p>"
 346                 "<blockquote><p><tt>%1$s</tt></p></blockquote>"
 347                 "<p>This external program can execute arbitrary commands on "
 348                 "your system, including dangerous ones, if instructed to do "
 349                 "so by a maliciously crafted LyX document.</p>"),
 350               from_utf8(command), from_utf8(conv.from()),
 351               from_utf8(conv.to())));
 352         if (lyxrc.use_converter_needauth_forbidden && !use_shell_escape) {
 353                 frontend::Alert::error(
 354                     _("An external converter is disabled for security reasons"),
 355                     security_warning + _(
 356                     "<p><b>Your current preference settings forbid its execution.</b></p>"
 357                     "<p>(To change this setting, go to <i>Preferences &#x25b9; File "
 358                     "Handling &#x25b9; Converters</i> and uncheck <i>Security &#x25b9; "
 359                     "Forbid needauth converters</i>.)"), false);
 360                 return false;
 361         }
 362         if (!lyxrc.use_converter_needauth && !use_shell_escape)
 363                 return true;
 364         docstring const security_title = use_shell_escape
 365                 ? _("A LaTeX backend requires your authorization")
 366                 : _("An external converter requires your authorization");
 367         int choice;
 368         docstring const security_warning2 = security_warning + (use_shell_escape
 369                 ? _("<p>Should LaTeX backends be allowed to run external "
 370                     "programs?</p><p><b>Allow them only if you trust the "
 371                     "origin/sender of the LyX document!</b></p>")
 372                 : _("<p>Would you like to run this converter?</p>"
 373                     "<p><b>Only run if you trust the origin/sender of the LyX "
 374                     "document!</b></p>"));
 375         docstring const no = use_shell_escape
 376                                 ? _("Do &not allow") : _("Do &not run");
 377         docstring const yes = use_shell_escape ? _("A&llow") : _("&Run");
 378         docstring const always = use_shell_escape
 379                                         ? _("&Always allow for this document")
 380                                         : _("&Always run for this document");
 381         if (!doc_fname.empty()) {
 382                 LYXERR(Debug::FILES, "looking up: " << doc_fname);
 383                 bool authorized = use_shell_escape
 384                         ? theSession().shellescapeFiles().findAuth(doc_fname)
 385                         : theSession().authFiles().find(doc_fname);
 386                 if (!authorized) {
 387                         choice = frontend::Alert::prompt(security_title,
 388                                                          security_warning2,
 389                                                          0, 0, no, yes, always);
 390                         if (choice == 2) {
 391                                 if (use_shell_escape)
 392                                         theSession().shellescapeFiles().insert(doc_fname, true);
 393                                 else
 394                                         theSession().authFiles().insert(doc_fname);
 395                         }
 396                 } else {
 397                         choice = 1;
 398                 }
 399         } else {
 400                 choice = frontend::Alert::prompt(security_title,
 401                                                  security_warning2,
 402                                                  0, 0, no, yes);
 403         }
 404         return choice != 0;
 405 }
 406
 407
 408 Converters::RetVal Converters::convert(Buffer const * buffer,
 409                          FileName const & from_file, FileName const & to_file,
 410                          FileName const & orig_from,
 411                          string const & from_format, string const & to_format,
 412                          ErrorList & errorList, int conversionflags, bool includeall)
 413 {
 414         if (from_format == to_format)
 415                 return move(from_format, from_file, to_file, false) ?
 416                       SUCCESS : FAILURE;
 417
 418         if ((conversionflags & try_cache) &&
 419             ConverterCache::get().inCache(orig_from, to_format))
 420                 return ConverterCache::get().copy(orig_from, to_format, to_file) ?
 421                       SUCCESS : FAILURE;
 422
 423         Graph::EdgePath edgepath = getPath(from_format, to_format);
 424         if (edgepath.empty()) {
 425                 if (conversionflags & try_default) {
 426                         // if no special converter defined, then we take the
 427                         // default one from ImageMagic.
 428                         string const from_ext = from_format.empty() ?
 429                                 getExtension(from_file.absFileName()) :
 430                                 theFormats().extension(from_format);
 431                         string const to_ext = theFormats().extension(to_format);
 432                         string const command =
 433                                 os::python() + ' ' +
 434                                 quoteName(libFileSearch("scripts", "convertDefault.py").toFilesystemEncoding()) +
 435                                 ' ' + from_ext + ' ' +
 436                                 quoteName(from_file.toFilesystemEncoding()) +
 437                                 ' ' + to_ext + ' ' +
 438                                 quoteName(to_file.toFilesystemEncoding());
 439                         LYXERR(Debug::FILES, "No converter defined! "
 440                                    "I use convertDefault.py:\n\t" << command);
 441                         Systemcall one;
 442                         Systemcall::Starttype starttype =
 443                                 (buffer && buffer->isClone()) ?
 444                                         Systemcall::WaitLoop : Systemcall::Wait;
 445                         int const exitval = one.startscript(starttype, command,
 446                                         buffer ? buffer->filePath() : string(),
 447                                         buffer ? buffer->layoutPos() : string());
 448                         if (exitval == Systemcall::KILLED) {
 449                                 frontend::Alert::warning(
 450                                         _("Converter killed"),
 451                                         bformat(_("The following converter was killed by the user.\n %1$s\n"),
 452                                                 from_utf8(command)));
 453                                 return KILLED;
 454                         }
 455                         if (to_file.isReadableFile()) {
 456                                 if (conversionflags & try_cache)
 457                                         ConverterCache::get().add(orig_from,
 458                                                         to_format, to_file);
 459                                 return SUCCESS;
 460                         }
 461                 }
 462
 463                 // only warn once per session and per file type
 464                 static std::map<string, string> warned;
 465                 if (warned.find(from_format) != warned.end() && warned.find(from_format)->second == to_format) {
 466                         return FAILURE;
 467                 }
 468                 warned.insert(make_pair(from_format, to_format));
 469
 470                 Alert::error(_("Cannot convert file"),
 471                              bformat(_("No information for converting %1$s "
 472                                                     "format files to %2$s.\n"
 473                                                     "Define a converter in the preferences."),
 474                                                         from_ascii(from_format), from_ascii(to_format)));
 475                 return FAILURE;
 476         }
 477
 478         // buffer can only be null for importing, and then runparams is not
 479         // used anyway.
 480         OutputParams runparams(buffer ? &buffer->params().encoding() : nullptr);
 481         runparams.flavor = getFlavor(edgepath, buffer);
 482
 483         if (buffer) {
 484                 BufferParams const & bp = buffer->params();
 485                 runparams.use_japanese =
 486                         (bp.bufferFormat() == "latex"
 487                          || suffixIs(bp.bufferFormat(), "-ja"))
 488                         && bp.encoding().package() == Encoding::japanese;
 489                 runparams.use_indices = bp.use_indices;
 490                 runparams.bibtex_command = bp.bibtexCommand(true);
 491                 runparams.index_command = (bp.index_command == "default") ?
 492                         string() : bp.index_command;
 493                 runparams.document_language = bp.language->lang();
 494                 // Some macros rely on font encoding
 495                 runparams.main_fontenc = bp.main_font_encoding();
 496                 runparams.only_childbibs = !bp.useBiblatex()
 497                                 && !bp.useBibtopic()
 498                                 && bp.multibib == "child";
 499                 runparams.includeall = includeall;
 500         }
 501
 502         // Some converters (e.g. lilypond) can only output files to the
 503         // current directory, so we need to change the current directory.
 504         // This has the added benefit that all other files that may be
 505         // generated by the converter are deleted when LyX closes and do not
 506         // clutter the real working directory.
 507         // FIXME: This does not work if path is an UNC path on windows
 508         //        (bug 6127).
 509         string const path(onlyPath(from_file.absFileName()));
 510         // Prevent the compiler from optimizing away p
 511         FileName pp(path);
 512         PathChanger p(pp);
 513
 514         // empty the error list before any new conversion takes place.
 515         errorList.clear();
 516
 517         bool run_latex = false;
 518         string from_base = changeExtension(from_file.absFileName(), "");
 519         string to_base = changeExtension(to_file.absFileName(), "");
 520         FileName infile;
 521         FileName outfile = from_file;
 522         for (auto const & edge : edgepath) {
 523                 Converter const & conv = converterlist_[edge];
 524                 bool dummy = conv.To()->dummy() && conv.to() != "program";
 525                 if (!dummy) {
 526                         LYXERR(Debug::FILES, "Converting from  "
 527                                << conv.from() << " to " << conv.to());
 528                 }
 529                 infile = outfile;
 530                 outfile = FileName(conv.result_file().empty()
 531                         ? changeExtension(from_file.absFileName(), conv.To()->extension())
 532                         : addName(subst(conv.result_dir(),
 533                                         token_base, from_base),
 534                                   subst(conv.result_file(),
 535                                         token_base, onlyFileName(from_base))));
 536
 537                 // if input and output files are equal, we use a
 538                 // temporary file as intermediary (JMarc)
 539                 FileName real_outfile;
 540                 if (!conv.result_file().empty())
 541                         real_outfile = FileName(changeExtension(from_file.absFileName(),
 542                                 conv.To()->extension()));
 543                 if (outfile == infile) {
 544                         real_outfile = infile;
 545                         // when importing, a buffer does not necessarily exist
 546                         if (buffer)
 547                                 outfile = FileName(addName(buffer->temppath(), "tmpfile.out"));
 548                         else
 549                                 outfile = FileName(addName(package().temp_dir().absFileName(),
 550                                                    "tmpfile.out"));
 551                 }
 552
 553                 if (buffer && buffer->params().use_minted
 554                     && lyxrc.pygmentize_command.empty() && conv.latex()) {
 555                         bool dowarn = false;
 556                         // Warn only if listings insets are actually used
 557                         for (Paragraph const & par : buffer->paragraphs()) {
 558                                 InsetList const & insets = par.insetList();
 559                                 pos_type lstpos = insets.find(LISTINGS_CODE, 0);
 560                                 pos_type incpos = insets.find(INCLUDE_CODE, 0);
 561                                 if (incpos >= 0) {
 562                                         InsetInclude const * include =
 563                                                 static_cast<InsetInclude *>
 564                                                         (insets.get(incpos));
 565                                         if (include->params().getCmdName() !=
 566                                                                 "inputminted") {
 567                                                 incpos = -1;
 568                                         }
 569                                 }
 570                                 if (lstpos >= 0 || incpos >= 0) {
 571                                         dowarn = true;
 572                                         break;
 573                                 }
 574                         }
 575                         if (dowarn) {
 576                                 Alert::warning(_("Pygments driver command not found!"),
 577                                     _("The driver command necessary to use the minted package\n"
 578                                       "(pygmentize) has not been found. Make sure you have\n"
 579                                       "the python-pygments module installed or, if the driver\n"
 580                                       "is named differently, to add the following line to the\n"
 581                                       "document preamble:\n\n"
 582                                       "\\AtBeginDocument{\\renewcommand{\\MintedPygmentize}{driver}}\n\n"
 583                                       "where 'driver' is name of the driver command."));
 584                         }
 585                 }
 586
 587                 if (!checkAuth(conv, buffer ? buffer->absFileName() : string(),
 588                                buffer && buffer->params().shell_escape))
 589                         return FAILURE;
 590
 591                 if (conv.latex()) {
 592                         // We are not importing, we have a buffer
 593                         LASSERT(buffer, return FAILURE);
 594                         run_latex = true;
 595                         string command = conv.command();
 596                         command = subst(command, token_from, "");
 597                         command = subst(command, token_latex_encoding,
 598                                         buffer->params().encoding().latexName());
 599                         if (buffer->params().shell_escape
 600                             && !contains(command, "-shell-escape"))
 601                                 command += " -shell-escape ";
 602                         LYXERR(Debug::FILES, "Running " << command);
 603                         // FIXME KILLED
 604                         // Check changed return value here.
 605                         RetVal const retval = runLaTeX(*buffer, command, runparams, errorList);
 606                         if (retval != SUCCESS)
 607                                 return retval;
 608                 } else {
 609                         if (conv.need_aux() && !run_latex) {
 610                                 // We are not importing, we have a buffer
 611                                 LASSERT(buffer, return FAILURE);
 612                                 string command;
 613                                 switch (runparams.flavor) {
 614                                 case Flavor::DviLuaTeX:
 615                                         command = dvilualatex_command_;
 616                                         break;
 617                                 case Flavor::LuaTeX:
 618                                         command = lualatex_command_;
 619                                         break;
 620                                 case Flavor::PdfLaTeX:
 621                                         command = pdflatex_command_;
 622                                         break;
 623                                 case Flavor::XeTeX:
 624                                         command = xelatex_command_;
 625                                         break;
 626                                 default:
 627                                         command = latex_command_;
 628                                         break;
 629                                 }
 630                                 if (!command.empty()) {
 631                                         LYXERR(Debug::FILES, "Running "
 632                                                 << command
 633                                                 << " to update aux file");
 634                                         // FIXME KILLED
 635                                         // Check changed return value here.
 636                                         RetVal const retval = runLaTeX(*buffer, command, runparams, errorList);
 637                                                 if (retval != SUCCESS)
 638                                                         return retval;
 639                                 }
 640                         }
 641
 642                         // FIXME UNICODE
 643                         string const infile2 =
 644                                 to_utf8(makeRelPath(from_utf8(infile.absFileName()), from_utf8(path)));
 645                         string const outfile2 =
 646                                 to_utf8(makeRelPath(from_utf8(outfile.absFileName()), from_utf8(path)));
 647
 648                         string command = conv.command();
 649                         BufferParams const & bparams = buffer ? buffer->params() : defaultBufferParams();
 650                         command = subst(command, token_from, quoteName(infile2));
 651                         command = subst(command, token_base, quoteName(from_base));
 652                         command = subst(command, token_to, quoteName(outfile2));
 653                         command = subst(command, token_path, quoteName(onlyPath(infile.absFileName())));
 654                         command = subst(command, token_orig_path, quoteName(onlyPath(orig_from.absFileName())));
 655                         command = subst(command, token_orig_from, quoteName(onlyFileName(orig_from.absFileName())));
 656                         command = subst(command, token_textclass, quoteName(bparams.documentClass().name()));
 657                         string modules = bparams.getModules().asString();
 658                         // FIXME: remove when SystemCall uses QProcess with the list API.
 659                         // Currently the QProcess parser is not able to encode an
 660                         // empty argument as ""; work around this by passing a
 661                         // single comma, that will be interpreted as a list of two
 662                         // empty module names.
 663                         if (modules.empty())
 664                                 modules = ",";
 665                         command = subst(command, token_modules, quoteName(modules));
 666                         command = subst(command, token_encoding, quoteName(bparams.encoding().iconvName()));
 667                         command = subst(command, token_python, os::python());
 668
 669                         if (!conv.parselog().empty())
 670                                 command += " 2> " + quoteName(infile2 + ".out");
 671
 672                         // it is not actually not necessary to test for buffer here,
 673                         // but it pleases coverity.
 674                         if (buffer && conv.from() == "dvi" && conv.to() == "ps")
 675                                 command = add_options(command,
 676                                                       buffer->params().dvips_options());
 677                         else if (buffer && conv.from() == "dvi" && prefixIs(conv.to(), "pdf"))
 678                                 command = add_options(command,
 679                                                       dvipdfm_options(buffer->params()));
 680
 681                         LYXERR(Debug::FILES, "Calling " << command);
 682                         if (buffer)
 683                                 buffer->message(_("Executing command: ")
 684                                 + from_utf8(command));
 685
 686                         Systemcall one;
 687                         int res;
 688                         if (dummy) {
 689                                 res = one.startscript(Systemcall::DontWait,
 690                                         to_filesystem8bit(from_utf8(command)),
 691                                         buffer ? buffer->filePath() : string(),
 692                                         buffer ? buffer->layoutPos() : string());
 693                                 // We're not waiting for the result, so we can't do anything
 694                                 // else here.
 695                         } else {
 696                                 Systemcall::Starttype starttype =
 697                                                 (buffer && buffer->isClone()) ?
 698                                                         Systemcall::WaitLoop : Systemcall::Wait;
 699                                 res = one.startscript(starttype,
 700                                                 to_filesystem8bit(from_utf8(command)),
 701                                                 buffer ? buffer->filePath()
 702                                                        : string(),
 703                                                 buffer ? buffer->layoutPos()
 704                                                        : string());
 705                                 if (res == Systemcall::KILLED) {
 706                                         frontend::Alert::warning(
 707                                                 _("Converter killed"),
 708                                                 bformat(_("The following converter was killed by the user.\n %1$s\n"),
 709                                                         from_utf8(command)));
 710                                         return KILLED;
 711                                 }
 712
 713                                 if (!real_outfile.empty()) {
 714                                         Mover const & mover = getMover(conv.to());
 715                                         if (!mover.rename(outfile, real_outfile))
 716                                                 res = -1;
 717                                         else
 718                                                 LYXERR(Debug::FILES, "renaming file " << outfile
 719                                                         << " to " << real_outfile);
 720                                         // Finally, don't forget to tell any future
 721                                         // converters to use the renamed file...
 722                                         outfile = real_outfile;
 723                                 }
 724
 725                                 if (!conv.parselog().empty()) {
 726                                         string const logfile =  infile2 + ".log";
 727                                         string const command2 = conv.parselog() +
 728                                                 " < " + quoteName(infile2 + ".out") +
 729                                                 " > " + quoteName(logfile);
 730                                         res = one.startscript(starttype,
 731                                                 to_filesystem8bit(from_utf8(command2)),
 732                                                 buffer ? buffer->filePath() : string(),
 733                                                 buffer ? buffer->layoutPos() : string());
 734                                         if (res == Systemcall::KILLED) {
 735                                                 frontend::Alert::warning(
 736                                                         _("Converter killed"),
 737                                                         bformat(_("The following converter was killed by the user.\n %1$s\n"),
 738                                                                 from_utf8(command)));
 739                                                 return KILLED;
 740                                         }
 741                                         if (buffer && !scanLog(*buffer, command, makeAbsPath(logfile, path), errorList))
 742                                                 return FAILURE;
 743                                 }
 744                         }
 745
 746                         if (res) {
 747                                 if (res == Systemcall::KILLED) {
 748                                         Alert::information(_("Process Killed"),
 749                                                 bformat(_("The conversion process was killed while running:\n%1$s"),
 750                                                         wrapParas(from_utf8(command))));
 751                                         return KILLED;
 752                                 }
 753                                 if (res == Systemcall::TIMEOUT) {
 754                                         Alert::information(_("Process Timed Out"),
 755                                                 bformat(_("The conversion process:\n%1$s\ntimed out before completing."),
 756                                                         wrapParas(from_utf8(command))));
 757                                         return KILLED;
 758                                 }
 759                                 if (conv.to() == "program") {
 760                                         Alert::error(_("Build errors"),
 761                                                 _("There were errors during the build process."));
 762                                 } else {
 763 // FIXME: this should go out of here. For example, here we cannot say if
 764 // it is a document (.lyx) or something else. Same goes for elsewhere.
 765                                         Alert::error(_("Cannot convert file"),
 766                                                 bformat(_("An error occurred while running:\n%1$s"),
 767                                                 wrapParas(from_utf8(command))));
 768                                 }
 769                                 return FAILURE;
 770                         }
 771                 }
 772         }
 773
 774         Converter const & conv = converterlist_[edgepath.back()];
 775         if (conv.To()->dummy())
 776                 return SUCCESS;
 777
 778         if (!conv.result_dir().empty()) {
 779                 // The converter has put the file(s) in a directory.
 780                 // In this case we ignore the given to_file.
 781                 if (from_base != to_base) {
 782                         string const from = subst(conv.result_dir(),
 783                                             token_base, from_base);
 784                         string const to = subst(conv.result_dir(),
 785                                           token_base, to_base);
 786                         Mover const & mover = getMover(conv.from());
 787                         if (!mover.rename(FileName(from), FileName(to))) {
 788                                 Alert::error(_("Cannot convert file"),
 789                                         bformat(_("Could not move a temporary directory from %1$s to %2$s."),
 790                                                 from_utf8(from), from_utf8(to)));
 791                                 return FAILURE;
 792                         }
 793                 }
 794                 return SUCCESS;
 795         } else {
 796                 if (conversionflags & try_cache)
 797                         ConverterCache::get().add(orig_from, to_format, outfile);
 798                 return move(conv.to(), outfile, to_file, conv.latex()) ? SUCCESS : FAILURE;
 799         }
 800 }
 801
 802
 803 bool Converters::move(string const & fmt,
 804                       FileName const & from, FileName const & to, bool copy)
 805 {
 806         if (from == to)
 807                 return true;
 808
 809         bool no_errors = true;
 810         string const path = onlyPath(from.absFileName());
 811         string const base = onlyFileName(removeExtension(from.absFileName()));
 812         string const to_base = removeExtension(to.absFileName());
 813         string const to_extension = getExtension(to.absFileName());
 814
 815         support::FileNameList const files = FileName(path).dirList(getExtension(from.absFileName()));
 816         for (auto const & f : files) {
 817                 string const from2 = f.absFileName();
 818                 string const file2 = onlyFileName(from2);
 819                 if (prefixIs(file2, base)) {
 820                         string const to2 = changeExtension(
 821                                 to_base + file2.substr(base.length()),
 822                                 to_extension);
 823                         LYXERR(Debug::FILES, "moving " << from2 << " to " << to2);
 824
 825                         Mover const & mover = getMover(fmt);
 826                         bool const moved = copy
 827                                 ? mover.copy(f, FileName(to2))
 828                                 : mover.rename(f, FileName(to2));
 829                         if (!moved && no_errors) {
 830                                 Alert::error(_("Cannot convert file"),
 831                                         bformat(copy ?
 832                                                 _("Could not copy a temporary file from %1$s to %2$s.") :
 833                                                 _("Could not move a temporary file from %1$s to %2$s."),
 834                                                 from_utf8(from2), from_utf8(to2)));
 835                                 no_errors = false;
 836                         }
 837                 }
 838         }
 839         return no_errors;
 840 }
 841
 842
 843 bool Converters::formatIsUsed(string const & format) const
 844 {
 845         for (auto const & cvt : converterlist_) {
 846                 if (cvt.from() == format || cvt.to() == format)
 847                         return true;
 848         }
 849         return false;
 850 }
 851
 852
 853 bool Converters::scanLog(Buffer const & buffer, string const & /*command*/,
 854                          FileName const & filename, ErrorList & errorList)
 855 {
 856         OutputParams runparams(nullptr);
 857         runparams.flavor = Flavor::LaTeX;
 858         LaTeX latex("", runparams, filename);
 859         TeXErrors terr;
 860         int const result = latex.scanLogFile(terr);
 861
 862         if (result & LaTeX::ERRORS)
 863                 buffer.bufferErrors(terr, errorList);
 864
 865         return true;
 866 }
 867
 868
 869 Converters::RetVal Converters::runLaTeX(Buffer const & buffer, string const & command,
 870                           OutputParams const & runparams, ErrorList & errorList)
 871 {
 872         buffer.setBusy(true);
 873         buffer.message(_("Running LaTeX..."));
 874
 875         // do the LaTeX run(s)
 876         string const name = buffer.latexName();
 877         LaTeX latex(command, runparams, makeAbsPath(name),
 878                     buffer.filePath(), buffer.layoutPos(),
 879                     buffer.isClone(), buffer.freshStartRequired());
 880         TeXErrors terr;
 881         // The connection closes itself at the end of the scope when latex is
 882         // destroyed. One cannot close (and destroy) buffer while the converter is
 883         // running.
 884         latex.message.connect([&buffer](docstring const & msg){
 885                         buffer.message(msg);
 886                 });
 887         int const result = latex.run(terr);
 888
 889         if (result == Systemcall::KILLED || result == Systemcall::TIMEOUT) {
 890                 Alert::error(_("Export canceled"),
 891                         _("The export process was terminated by the user."));
 892                 return KILLED;
 893         }
 894
 895         if (result & LaTeX::ERRORS)
 896                 buffer.bufferErrors(terr, errorList);
 897
 898         if ((result & LaTeX::UNDEF_CIT) || (result & LaTeX::UNDEF_UNKNOWN_REF)) {
 899                 buffer.bufferRefs(terr, errorList);
 900                 if (errorList.empty())
 901                         errorList.push_back(ErrorItem(_("Undefined reference"),
 902                                 _("Undefined references or citations were found during the build.\n"
 903                                   "Please check the warnings in the LaTeX log (Document > LaTeX Log)."),
 904                                 &buffer));
 905         }
 906
 907         if (!errorList.empty()) {
 908           // We will show the LaTeX Errors GUI later which contains
 909           // specific error messages so it would be repetitive to give
 910           // e.g. the "finished with an error" dialog in addition.
 911         }
 912         else if (result & LaTeX::NO_LOGFILE) {
 913                 docstring const str =
 914                         bformat(_("LaTeX did not run successfully. "
 915                                                "Additionally, LyX could not locate "
 916                                                "the LaTeX log %1$s."), from_utf8(name));
 917                 Alert::error(_("LaTeX failed"), str);
 918         } else if (result & LaTeX::NONZERO_ERROR) {
 919                 docstring const str =
 920                         bformat(_( "The external program\n%1$s\n"
 921                               "finished with an error. "
 922                               "It is recommended you fix the cause of the external "
 923                               "program's error (check the logs). "), from_utf8(command));
 924                 Alert::error(_("LaTeX failed"), str);
 925         } else if (result & LaTeX::NO_OUTPUT) {
 926                 Alert::warning(_("Output is empty"),
 927                                _("No output file was generated."));
 928         }
 929
 930         buffer.setBusy(false);
 931
 932         int const ERROR_MASK =
 933                         LaTeX::NO_LOGFILE |
 934                         LaTeX::ERRORS |
 935                         LaTeX::UNDEF_CIT |
 936                         LaTeX::UNDEF_UNKNOWN_REF |
 937                         LaTeX::NO_OUTPUT;
 938
 939         return (result & ERROR_MASK) == 0 ? SUCCESS : FAILURE;
 940 }
 941
 942
 943
 944 void Converters::buildGraph()
 945 {
 946         // clear graph's data structures
 947         G_.init(theFormats().size());
 948         // each of the converters knows how to convert one format to another
 949         // so, for each of them, we create an arrow on the graph, going from
 950         // the one to the other
 951         for (auto const & cvt : converterlist_) {
 952                 int const from = theFormats().getNumber(cvt.from());
 953                 int const to   = theFormats().getNumber(cvt.to());
 954                 LASSERT(from >= 0, continue);
 955                 LASSERT(to >= 0, continue);
 956                 G_.addEdge(from, to);
 957         }
 958 }
 959
 960
 961 FormatList const Converters::intToFormat(vector<int> const & input)
 962 {
 963         FormatList result(input.size());
 964
 965         vector<int>::const_iterator it = input.begin();
 966         vector<int>::const_iterator const end = input.end();
 967         FormatList::iterator rit = result.begin();
 968         for ( ; it != end; ++it, ++rit) {
 969                 *rit = &theFormats().get(*it);
 970         }
 971         return result;
 972 }
 973
 974
 975 FormatList const Converters::getReachableTo(string const & target,
 976                 bool const clear_visited)
 977 {
 978         vector<int> const & reachablesto =
 979                 G_.getReachableTo(theFormats().getNumber(target), clear_visited);
 980
 981         return intToFormat(reachablesto);
 982 }
 983
 984
 985 FormatList const Converters::getReachable(string const & from,
 986                 bool const only_viewable, bool const clear_visited,
 987                 set<string> const & excludes)
 988 {
 989         set<int> excluded_numbers;
 990
 991         for (auto const & ex : excludes)
 992                 excluded_numbers.insert(theFormats().getNumber(ex));
 993
 994         vector<int> const & reachables =
 995                 G_.getReachable(theFormats().getNumber(from),
 996                                 only_viewable,
 997                                 clear_visited,
 998                                 excluded_numbers);
 999
1000         return intToFormat(reachables);
1001 }
1002
1003
1004 bool Converters::isReachable(string const & from, string const & to)
1005 {
1006         return G_.isReachable(theFormats().getNumber(from),
1007                               theFormats().getNumber(to));
1008 }
1009
1010
1011 Graph::EdgePath Converters::getPath(string const & from, string const & to)
1012 {
1013         return G_.getPath(theFormats().getNumber(from),
1014                           theFormats().getNumber(to));
1015 }
1016
1017
1018 FormatList Converters::importableFormats()
1019 {
1020         vector<string> l = loaders();
1021         FormatList result = getReachableTo(l[0], true);
1022         vector<string>::const_iterator it = l.begin() + 1;
1023         vector<string>::const_iterator en = l.end();
1024         for (; it != en; ++it) {
1025                 FormatList r = getReachableTo(*it, false);
1026                 result.insert(result.end(), r.begin(), r.end());
1027         }
1028         return result;
1029 }
1030
1031
1032 FormatList Converters::exportableFormats(bool only_viewable)
1033 {
1034         vector<string> s = savers();
1035         FormatList result = getReachable(s[0], only_viewable, true);
1036         vector<string>::const_iterator it = s.begin() + 1;
1037         vector<string>::const_iterator en = s.end();
1038         for (; it != en; ++it) {
1039                  FormatList r = getReachable(*it, only_viewable, false);
1040                 result.insert(result.end(), r.begin(), r.end());
1041         }
1042         return result;
1043 }
1044
1045
1046 vector<string> Converters::loaders() const
1047 {
1048         vector<string> v;
1049         v.push_back("lyx");
1050         v.push_back("text");
1051         v.push_back("textparagraph");
1052         return v;
1053 }
1054
1055
1056 vector<string> Converters::savers() const
1057 {
1058         vector<string> v;
1059         v.push_back("docbook");
1060         v.push_back("latex");
1061         v.push_back("literate");
1062         v.push_back("luatex");
1063         v.push_back("dviluatex");
1064         v.push_back("lyx");
1065         v.push_back("xhtml");
1066         v.push_back("pdflatex");
1067         v.push_back("platex");
1068         v.push_back("text");
1069         v.push_back("xetex");
1070         return v;
1071 }
1072
1073
1074 } // namespace lyx