}
+unsigned long checksum_ifstream_fallback(char const * file)
+{
+ unsigned long result = 0;
+ //LYXERR(Debug::FILES, "lyx::sum() using istreambuf_iterator (fast)");
+ ifstream ifs(file, ios_base::in | ios_base::binary);
+ if (!ifs)
+ return result;
+
+ istreambuf_iterator<char> beg(ifs);
+ istreambuf_iterator<char> end;
+ boost::crc_32_type crc;
+ crc = for_each(beg, end, crc);
+ result = crc.checksum();
+ return result;
+}
+
unsigned long FileName::checksum() const
{
unsigned long result = 0;
return result;
struct stat info;
- fstat(fd, &info);
+ if (fstat(fd, &info)){
+ // fstat fails on samba shares (bug 5891)
+ close(fd);
+ return checksum_ifstream_fallback(file);
+ }
void * mm = mmap(0, info.st_size, PROT_READ,
MAP_PRIVATE, fd, 0);
close(fd);
#else // no SUM_WITH_MMAP
-
- //LYXERR(Debug::FILES, "lyx::sum() using istreambuf_iterator (fast)");
- ifstream ifs(file, ios_base::in | ios_base::binary);
- if (!ifs)
- return result;
-
- istreambuf_iterator<char> beg(ifs);
- istreambuf_iterator<char> end;
- boost::crc_32_type crc;
- crc = for_each(beg, end, crc);
- result = crc.checksum();
-
+ result = checksum_ifstream_fallback(file);
#endif // SUM_WITH_MMAP
#endif // QT_VERSION
}
-string FileName::guessFormatFromContents() const
-{
- // the different filetypes and what they contain in one of the first lines
- // (dots are any characters). (Herbert 20020131)
- // AGR Grace...
- // BMP BM...
- // EPS %!PS-Adobe-3.0 EPSF...
- // FIG #FIG...
- // FITS ...BITPIX...
- // GIF GIF...
- // JPG JFIF
- // PDF %PDF-...
- // PNG .PNG...
- // PBM P1... or P4 (B/W)
- // PGM P2... or P5 (Grayscale)
- // PPM P3... or P6 (color)
- // PS %!PS-Adobe-2.0 or 1.0, no "EPSF"!
- // SGI \001\332... (decimal 474)
- // TGIF %TGIF...
- // TIFF II... or MM...
- // XBM ..._bits[]...
- // XPM /* XPM */ sometimes missing (f.ex. tgif-export)
- // ...static char *...
- // XWD \000\000\000\151 (0x00006900) decimal 105
- //
- // GZIP \037\213 http://www.ietf.org/rfc/rfc1952.txt
- // ZIP PK... http://www.halyava.ru/document/ind_arch.htm
- // Z \037\235 UNIX compress
-
- // paranoia check
- if (empty() || !isReadableFile())
- return string();
-
- ifstream ifs(toFilesystemEncoding().c_str());
- if (!ifs)
- // Couldn't open file...
- return string();
-
- // gnuzip
- static string const gzipStamp = "\037\213";
-
- // PKZIP
- static string const zipStamp = "PK";
-
- // compress
- static string const compressStamp = "\037\235";
-
- // Maximum strings to read
- int const max_count = 50;
- int count = 0;
-
- string str;
- string format;
- bool firstLine = true;
- while ((count++ < max_count) && format.empty()) {
- if (ifs.eof()) {
- LYXERR(Debug::GRAPHICS, "filetools(getFormatFromContents)\n"
- << "\tFile type not recognised before EOF!");
- break;
- }
-
- getline(ifs, str);
- string const stamp = str.substr(0, 2);
- if (firstLine && str.size() >= 2) {
- // at first we check for a zipped file, because this
- // information is saved in the first bytes of the file!
- // also some graphic formats which save the information
- // in the first line, too.
- if (prefixIs(str, gzipStamp)) {
- format = "gzip";
-
- } else if (stamp == zipStamp) {
- format = "zip";
-
- } else if (stamp == compressStamp) {
- format = "compress";
-
- // the graphics part
- } else if (stamp == "BM") {
- format = "bmp";
-
- } else if (stamp == "\001\332") {
- format = "sgi";
-
- // PBM family
- // Don't need to use str.at(0), str.at(1) because
- // we already know that str.size() >= 2
- } else if (str[0] == 'P') {
- switch (str[1]) {
- case '1':
- case '4':
- format = "pbm";
- break;
- case '2':
- case '5':
- format = "pgm";
- break;
- case '3':
- case '6':
- format = "ppm";
- }
- break;
-
- } else if ((stamp == "II") || (stamp == "MM")) {
- format = "tiff";
-
- } else if (prefixIs(str,"%TGIF")) {
- format = "tgif";
-
- } else if (prefixIs(str,"#FIG")) {
- format = "fig";
-
- } else if (prefixIs(str,"GIF")) {
- format = "gif";
-
- } else if (str.size() > 3) {
- int const c = ((str[0] << 24) & (str[1] << 16) &
- (str[2] << 8) & str[3]);
- if (c == 105) {
- format = "xwd";
- }
- }
-
- firstLine = false;
- }
-
- if (!format.empty())
- break;
- else if (contains(str,"EPSF"))
- // dummy, if we have wrong file description like
- // %!PS-Adobe-2.0EPSF"
- format = "eps";
-
- else if (contains(str, "Grace"))
- format = "agr";
-
- else if (contains(str, "JFIF"))
- format = "jpg";
-
- else if (contains(str, "%PDF"))
- format = "pdf";
-
- else if (contains(str, "PNG"))
- format = "png";
-
- else if (contains(str, "%!PS-Adobe")) {
- // eps or ps
- ifs >> str;
- if (contains(str,"EPSF"))
- format = "eps";
- else
- format = "ps";
- }
-
- else if (contains(str, "_bits[]"))
- format = "xbm";
-
- else if (contains(str, "XPM") || contains(str, "static char *"))
- format = "xpm";
-
- else if (contains(str, "BITPIX"))
- format = "fits";
- }
-
- // Dia knows also compressed form
- if ((format == "gzip") && (!compare_ascii_no_case(extension(), "dia")))
- format="dia";
-
- if (!format.empty()) {
- LYXERR(Debug::GRAPHICS, "Recognised Fileformat: " << format);
- return format;
- }
-
- LYXERR(Debug::GRAPHICS, "filetools(getFormatFromContents)\n"
- << "\tCouldn't find a known format!");
- return string();
-}
-
-
-bool FileName::isZippedFile() const
-{
- string const type = guessFormatFromContents();
- return contains("gzip zip compress", type) && !type.empty();
-}
-
-
docstring const FileName::relPath(string const & path) const
{
// FIXME UNICODE
DocFileName::DocFileName(string const & abs_filename, bool save_abs)
- : FileName(abs_filename), save_abs_path_(save_abs), zipped_valid_(false)
+ : FileName(abs_filename), save_abs_path_(save_abs)
{}
DocFileName::DocFileName(FileName const & abs_filename, bool save_abs)
- : FileName(abs_filename), save_abs_path_(save_abs), zipped_valid_(false)
+ : FileName(abs_filename), save_abs_path_(save_abs)
{}
FileName::set(name);
else
FileName::set(makeAbsPath(name, buffer_path).absFileName());
- zipped_valid_ = false;
}
void DocFileName::erase()
{
FileName::erase();
- zipped_valid_ = false;
}
-string DocFileName::relFilename(string const & path) const
+string DocFileName::relFileName(string const & path) const
{
// FIXME UNICODE
return to_utf8(relPath(path));
}
-string DocFileName::outputFilename(string const & path) const
+string DocFileName::outputFileName(string const & path) const
{
- return save_abs_path_ ? absFileName() : relFilename(path);
+ return save_abs_path_ ? absFileName() : relFileName(path);
}
-string DocFileName::mangledFilename(string const & dir) const
+string DocFileName::mangledFileName(string const & dir) const
{
// We need to make sure that every DocFileName instance for a given
// filename returns the same mangled name.
// in the name.
static string const keep = "abcdefghijklmnopqrstuvwxyz"
"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
- "+,-0123456789;=";
+ "+-0123456789;=";
string::size_type pos = 0;
while ((pos = mname.find_first_not_of(keep, pos)) != string::npos)
mname[pos++] = '_';
}
-bool DocFileName::isZipped() const
-{
- if (!zipped_valid_) {
- zipped_ = isZippedFile();
- zipped_valid_ = true;
- }
- return zipped_;
-}
-
-
-string DocFileName::unzippedFilename() const
+string DocFileName::unzippedFileName() const
{
- return unzippedFileName(absFileName());
+ return support::unzippedFileName(absFileName());
}
projects / lyx.git / blobdiff