+// checkLanguage - are we interested in the given Language? /*{{{*/
+bool const Configuration::checkLanguage(std::string Lang, bool const All) {
+ // the empty Language is always interesting as it is the original
+ if (Lang.empty() == true)
+ return true;
+ // filenames are encoded, so undo this
+ Lang = SubstVar(Lang, "%5f", "_");
+ std::vector<std::string> const langs = getLanguages(All, true);
+ return (std::find(langs.begin(), langs.end(), Lang) != langs.end());
+}
+ /*}}}*/
+// getArchitectures - Return Vector of preferred Architectures /*{{{*/
+std::vector<std::string> const Configuration::getArchitectures(bool const &Cached) {
+ using std::string;
+
+ std::vector<string> static archs;
+ if (likely(Cached == true) && archs.empty() == false)
+ return archs;
+
+ string const arch = _config->Find("APT::Architecture");
+ archs = _config->FindVector("APT::Architectures");
+
+ if (unlikely(arch.empty() == true))
+ return archs;
+
+ // FIXME: It is a bit unclean to have debian specific code here…
+ if (archs.empty() == true) {
+ archs.push_back(arch);
+
+ // Generate the base argument list for dpkg
+ std::vector<const char *> Args;
+ string Tmp = _config->Find("Dir::Bin::dpkg","dpkg");
+ {
+ string const dpkgChrootDir = _config->FindDir("DPkg::Chroot-Directory", "/");
+ size_t dpkgChrootLen = dpkgChrootDir.length();
+ if (dpkgChrootDir != "/" && Tmp.find(dpkgChrootDir) == 0) {
+ if (dpkgChrootDir[dpkgChrootLen - 1] == '/')
+ --dpkgChrootLen;
+ Tmp = Tmp.substr(dpkgChrootLen);
+ }
+ }
+ Args.push_back(Tmp.c_str());
+
+ // Stick in any custom dpkg options
+ ::Configuration::Item const *Opts = _config->Tree("DPkg::Options");
+ if (Opts != 0) {
+ Opts = Opts->Child;
+ for (; Opts != 0; Opts = Opts->Next)
+ {
+ if (Opts->Value.empty() == true)
+ continue;
+ Args.push_back(Opts->Value.c_str());
+ }
+ }
+
+ Args.push_back("--print-foreign-architectures");
+ Args.push_back(NULL);
+
+ int external[2] = {-1, -1};
+ if (pipe(external) != 0)
+ {
+ _error->WarningE("getArchitecture", "Can't create IPC pipe for dpkg --print-foreign-architectures");
+ return archs;
+ }
+
+ pid_t dpkgMultiArch = ExecFork();
+ if (dpkgMultiArch == 0) {
+ close(external[0]);
+ std::string const chrootDir = _config->FindDir("DPkg::Chroot-Directory");
+ int const nullfd = open("/dev/null", O_RDONLY);
+ dup2(nullfd, STDIN_FILENO);
+ dup2(external[1], STDOUT_FILENO);
+ dup2(nullfd, STDERR_FILENO);
+ if (chrootDir != "/" && chroot(chrootDir.c_str()) != 0 && chdir("/") != 0)
+ _error->WarningE("getArchitecture", "Couldn't chroot into %s for dpkg --print-foreign-architectures", chrootDir.c_str());
+ execvp(Args[0], (char**) &Args[0]);
+ _error->WarningE("getArchitecture", "Can't detect foreign architectures supported by dpkg!");
+ _exit(100);
+ }
+ close(external[1]);
+
+ FILE *dpkg = fdopen(external[0], "r");
+ if(dpkg != NULL) {
+ char buf[1024];
+ while (fgets(buf, sizeof(buf), dpkg) != NULL) {
+ char* arch = strtok(buf, " ");
+ while (arch != NULL) {
+ for (; isspace(*arch) != 0; ++arch);
+ if (arch[0] != '\0') {
+ char const* archend = arch;
+ for (; isspace(*archend) == 0 && *archend != '\0'; ++archend);
+ string a(arch, (archend - arch));
+ if (std::find(archs.begin(), archs.end(), a) == archs.end())
+ archs.push_back(a);
+ }
+ arch = strtok(NULL, " ");
+ }
+ }
+ fclose(dpkg);
+ }
+ ExecWait(dpkgMultiArch, "dpkg --print-foreign-architectures", true);
+ return archs;
+ }
+
+ if (archs.empty() == true ||
+ std::find(archs.begin(), archs.end(), arch) == archs.end())
+ archs.insert(archs.begin(), arch);
+
+ // erase duplicates and empty strings
+ for (std::vector<string>::reverse_iterator a = archs.rbegin();
+ a != archs.rend(); ++a) {
+ if (a->empty() == true || std::find(a + 1, archs.rend(), *a) != archs.rend())
+ archs.erase(a.base()-1);
+ if (a == archs.rend())
+ break;
+ }
+
+ return archs;
+}
+ /*}}}*/
+// checkArchitecture - are we interested in the given Architecture? /*{{{*/
+bool const Configuration::checkArchitecture(std::string const &Arch) {
+ if (Arch == "all")
+ return true;
+ std::vector<std::string> const archs = getArchitectures(true);
+ return (std::find(archs.begin(), archs.end(), Arch) != archs.end());
+}
+ /*}}}*/
+// setDefaultConfigurationForCompressors /*{{{*/
+void Configuration::setDefaultConfigurationForCompressors() {
+ // Set default application paths to check for optional compression types
+ _config->CndSet("Dir::Bin::bzip2", "/bin/bzip2");
+ _config->CndSet("Dir::Bin::xz", "/usr/bin/xz");
+ if (FileExists(_config->FindFile("Dir::Bin::xz")) == true) {
+ _config->Set("Dir::Bin::lzma", _config->FindFile("Dir::Bin::xz"));
+ _config->Set("APT::Compressor::lzma::Binary", "xz");
+ if (_config->Exists("APT::Compressor::lzma::CompressArg") == false) {
+ _config->Set("APT::Compressor::lzma::CompressArg::", "--format=lzma");
+ _config->Set("APT::Compressor::lzma::CompressArg::", "-9");
+ }
+ if (_config->Exists("APT::Compressor::lzma::UncompressArg") == false) {
+ _config->Set("APT::Compressor::lzma::UncompressArg::", "--format=lzma");
+ _config->Set("APT::Compressor::lzma::UncompressArg::", "-d");
+ }
+ } else {
+ _config->CndSet("Dir::Bin::lzma", "/usr/bin/lzma");
+ if (_config->Exists("APT::Compressor::lzma::CompressArg") == false) {
+ _config->Set("APT::Compressor::lzma::CompressArg::", "--suffix=");
+ _config->Set("APT::Compressor::lzma::CompressArg::", "-9");
+ }
+ if (_config->Exists("APT::Compressor::lzma::UncompressArg") == false) {
+ _config->Set("APT::Compressor::lzma::UncompressArg::", "--suffix=");
+ _config->Set("APT::Compressor::lzma::UncompressArg::", "-d");
+ }
+ }
+}
+ /*}}}*/
+// getCompressors - Return Vector of usbale compressors /*{{{*/
+// ---------------------------------------------------------------------
+/* return a vector of compressors used by apt-ftparchive in the
+ multicompress functionality or to detect data.tar files */
+std::vector<APT::Configuration::Compressor>
+const Configuration::getCompressors(bool const Cached) {
+ static std::vector<APT::Configuration::Compressor> compressors;
+ if (compressors.empty() == false) {
+ if (Cached == true)
+ return compressors;
+ else
+ compressors.clear();
+ }
+
+ setDefaultConfigurationForCompressors();
+
+ compressors.push_back(Compressor(".", "", "", NULL, NULL, 1));
+ if (_config->Exists("Dir::Bin::gzip") == false || FileExists(_config->FindFile("Dir::Bin::gzip")) == true)
+ compressors.push_back(Compressor("gzip",".gz","gzip","-9n","-d",2));
+#ifdef HAVE_ZLIB
+ else
+ compressors.push_back(Compressor("gzip",".gz","false", NULL, NULL, 2));
+#endif
+ if (_config->Exists("Dir::Bin::bzip2") == false || FileExists(_config->FindFile("Dir::Bin::bzip2")) == true)
+ compressors.push_back(Compressor("bzip2",".bz2","bzip2","-9","-d",3));
+#ifdef HAVE_BZ2
+ else
+ compressors.push_back(Compressor("bzip2",".bz2","false", NULL, NULL, 3));
+#endif
+ if (_config->Exists("Dir::Bin::xz") == false || FileExists(_config->FindFile("Dir::Bin::xz")) == true)
+ compressors.push_back(Compressor("xz",".xz","xz","-6","-d",4));
+ if (_config->Exists("Dir::Bin::lzma") == false || FileExists(_config->FindFile("Dir::Bin::lzma")) == true)
+ compressors.push_back(Compressor("lzma",".lzma","lzma","-9","-d",5));
+
+ std::vector<std::string> const comp = _config->FindVector("APT::Compressor");
+ for (std::vector<std::string>::const_iterator c = comp.begin();
+ c != comp.end(); ++c) {
+ if (*c == "." || *c == "gzip" || *c == "bzip2" || *c == "lzma" || *c == "xz")
+ continue;
+ compressors.push_back(Compressor(c->c_str(), std::string(".").append(*c).c_str(), c->c_str(), "-9", "-d", 100));
+ }
+
+ return compressors;
+}
+ /*}}}*/
+// getCompressorExtensions - supported data.tar extensions /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+std::vector<std::string> const Configuration::getCompressorExtensions() {
+ std::vector<APT::Configuration::Compressor> const compressors = getCompressors();
+ std::vector<std::string> ext;
+ for (std::vector<APT::Configuration::Compressor>::const_iterator c = compressors.begin();
+ c != compressors.end(); ++c)
+ if (c->Extension.empty() == false && c->Extension != ".")
+ ext.push_back(c->Extension);
+ return ext;
+}
+ /*}}}*/
+// Compressor constructor /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+Configuration::Compressor::Compressor(char const *name, char const *extension,
+ char const *binary,
+ char const *compressArg, char const *uncompressArg,
+ unsigned short const cost) {
+ std::string const config = std::string("APT::Compressor::").append(name).append("::");
+ Name = _config->Find(std::string(config).append("Name"), name);
+ Extension = _config->Find(std::string(config).append("Extension"), extension);
+ Binary = _config->Find(std::string(config).append("Binary"), binary);
+ Cost = _config->FindI(std::string(config).append("Cost"), cost);
+ std::string const compConf = std::string(config).append("CompressArg");
+ if (_config->Exists(compConf) == true)
+ CompressArgs = _config->FindVector(compConf);
+ else if (compressArg != NULL)
+ CompressArgs.push_back(compressArg);
+ std::string const uncompConf = std::string(config).append("UncompressArg");
+ if (_config->Exists(uncompConf) == true)
+ UncompressArgs = _config->FindVector(uncompConf);
+ else if (uncompressArg != NULL)
+ UncompressArgs.push_back(uncompressArg);
+}
+ /*}}}*/
projects / apt.git / blobdiff