X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/3b5a76ae9ae425db6fda4ccc041fbb1e79fffc18..cfcdf7fe9f8c925847fe8d8a18bb0996dd9391a5:/apt-pkg/aptconfiguration.cc diff --git a/apt-pkg/aptconfiguration.cc b/apt-pkg/aptconfiguration.cc index 45ae9bed5..ca602d4bf 100644 --- a/apt-pkg/aptconfiguration.cc +++ b/apt-pkg/aptconfiguration.cc @@ -8,13 +8,20 @@ ##################################################################### */ /*}}}*/ // Include Files /*{{{*/ -#include #include #include +#include +#include +#include +#include + +#include +#include +#include -#include -#include #include +#include +#include /*}}}*/ namespace APT { // getCompressionTypes - Return Vector of usbale compressiontypes /*{{{*/ @@ -32,12 +39,11 @@ const Configuration::getCompressionTypes(bool const &Cached) { // setup the defaults for the compressiontypes => method mapping _config->CndSet("Acquire::CompressionTypes::bz2","bzip2"); + _config->CndSet("Acquire::CompressionTypes::xz","xz"); _config->CndSet("Acquire::CompressionTypes::lzma","lzma"); _config->CndSet("Acquire::CompressionTypes::gz","gzip"); - // Set default application paths to check for optional compression types - _config->CndSet("Dir::Bin::lzma", "/usr/bin/lzma"); - _config->CndSet("Dir::Bin::bzip2", "/bin/bzip2"); + setDefaultConfigurationForCompressors(); // accept non-list order as override setting for config settings on commandline std::string const overrideOrder = _config->Find("Acquire::CompressionTypes::Order",""); @@ -84,7 +90,370 @@ const Configuration::getCompressionTypes(bool const &Cached) { types.push_back(Types->Tag); } + // add the special "uncompressed" type + if (std::find(types.begin(), types.end(), "uncompressed") == types.end()) + { + string const uncompr = _config->FindFile("Dir::Bin::uncompressed", ""); + if (uncompr.empty() == true || FileExists(uncompr) == true) + types.push_back("uncompressed"); + } + return types; } /*}}}*/ +// GetLanguages - Return Vector of Language Codes /*{{{*/ +// --------------------------------------------------------------------- +/* return a vector of language codes in the prefered order. + the special word "environment" will be replaced with the long and the short + code of the local settings and it will be insured that this will not add + duplicates. So in an german local the setting "environment, de_DE, en, de" + will result in "de_DE, de, en". + The special word "none" is the stopcode for the not-All code vector */ +std::vector const Configuration::getLanguages(bool const &All, + bool const &Cached, char const ** const Locale) { + using std::string; + + // The detection is boring and has a lot of cornercases, + // so we cache the results to calculated it only once. + std::vector static allCodes; + std::vector static codes; + + // we have something in the cache + if (codes.empty() == false || allCodes.empty() == false) { + if (Cached == true) { + if(All == true && allCodes.empty() == false) + return allCodes; + else + return codes; + } else { + allCodes.clear(); + codes.clear(); + } + } + + // Include all Language codes we have a Translation file for in /var/lib/apt/lists + // so they will be all included in the Cache. + std::vector builtin; + DIR *D = opendir(_config->FindDir("Dir::State::lists").c_str()); + if (D != 0) { + builtin.push_back("none"); + for (struct dirent *Ent = readdir(D); Ent != 0; Ent = readdir(D)) { + string const name = Ent->d_name; + size_t const foundDash = name.rfind("-"); + size_t const foundUnderscore = name.rfind("_"); + if (foundDash == string::npos || foundUnderscore == string::npos || + foundDash <= foundUnderscore || + name.substr(foundUnderscore+1, foundDash-(foundUnderscore+1)) != "Translation") + continue; + string const c = name.substr(foundDash+1); + if (unlikely(c.empty() == true) || c == "en") + continue; + // Skip unusual files, like backups or that alike + string::const_iterator s = c.begin(); + for (;s != c.end(); ++s) { + if (isalpha(*s) == 0) + break; + } + if (s != c.end()) + continue; + if (std::find(builtin.begin(), builtin.end(), c) != builtin.end()) + continue; + builtin.push_back(c); + } + } + closedir(D); + + // FIXME: Remove support for the old APT::Acquire::Translation + // it was undocumented and so it should be not very widthly used + string const oldAcquire = _config->Find("APT::Acquire::Translation",""); + if (oldAcquire.empty() == false && oldAcquire != "environment") { + // TRANSLATORS: the two %s are APT configuration options + _error->Notice("Option '%s' is deprecated. Please use '%s' instead, see 'man 5 apt.conf' for details.", + "APT::Acquire::Translation", "Acquire::Languages"); + if (oldAcquire != "none") + codes.push_back(oldAcquire); + codes.push_back("en"); + allCodes = codes; + for (std::vector::const_iterator b = builtin.begin(); + b != builtin.end(); ++b) + if (std::find(allCodes.begin(), allCodes.end(), *b) == allCodes.end()) + allCodes.push_back(*b); + if (All == true) + return allCodes; + else + return codes; + } + + // get the environment language codes: LC_MESSAGES (and later LANGUAGE) + // we extract both, a long and a short code and then we will + // check if we actually need both (rare) or if the short is enough + string const envMsg = string(Locale == 0 ? std::setlocale(LC_MESSAGES, NULL) : *Locale); + size_t const lenShort = (envMsg.find('_') != string::npos) ? envMsg.find('_') : 2; + size_t const lenLong = (envMsg.find_first_of(".@") != string::npos) ? envMsg.find_first_of(".@") : (lenShort + 3); + + string const envLong = envMsg.substr(0,lenLong); + string const envShort = envLong.substr(0,lenShort); + + // It is very likely we will need the environment codes later, + // so let us generate them now from LC_MESSAGES and LANGUAGE + std::vector environment; + if (envShort != "C") { + // take care of LC_MESSAGES + if (envLong != envShort) + environment.push_back(envLong); + environment.push_back(envShort); + // take care of LANGUAGE + const char *language_env = getenv("LANGUAGE") == 0 ? "" : getenv("LANGUAGE"); + string envLang = Locale == 0 ? language_env : *(Locale+1); + if (envLang.empty() == false) { + std::vector env = VectorizeString(envLang,':'); + short addedLangs = 0; // add a maximum of 3 fallbacks from the environment + for (std::vector::const_iterator e = env.begin(); + e != env.end() && addedLangs < 3; ++e) { + if (unlikely(e->empty() == true) || *e == "en") + continue; + if (*e == envLong || *e == envShort) + continue; + if (std::find(environment.begin(), environment.end(), *e) != environment.end()) + continue; + ++addedLangs; + environment.push_back(*e); + } + } + } else { + environment.push_back("en"); + } + + // Support settings like Acquire::Translation=none on the command line to + // override the configuration settings vector of languages. + string const forceLang = _config->Find("Acquire::Languages",""); + if (forceLang.empty() == false) { + if (forceLang == "environment") { + codes = environment; + } else if (forceLang != "none") + codes.push_back(forceLang); + allCodes = codes; + for (std::vector::const_iterator b = builtin.begin(); + b != builtin.end(); ++b) + if (std::find(allCodes.begin(), allCodes.end(), *b) == allCodes.end()) + allCodes.push_back(*b); + if (All == true) + return allCodes; + else + return codes; + } + + // cornercase: LANG=C, so we use only "en" Translation + if (envShort == "C") { + allCodes = codes = environment; + allCodes.insert(allCodes.end(), builtin.begin(), builtin.end()); + if (All == true) + return allCodes; + else + return codes; + } + + std::vector const lang = _config->FindVector("Acquire::Languages"); + // the default setting -> "environment, en" + if (lang.empty() == true) { + codes = environment; + if (envShort != "en") + codes.push_back("en"); + allCodes = codes; + for (std::vector::const_iterator b = builtin.begin(); + b != builtin.end(); ++b) + if (std::find(allCodes.begin(), allCodes.end(), *b) == allCodes.end()) + allCodes.push_back(*b); + if (All == true) + return allCodes; + else + return codes; + } + + // the configs define the order, so add the environment + // then needed and ensure the codes are not listed twice. + bool noneSeen = false; + for (std::vector::const_iterator l = lang.begin(); + l != lang.end(); l++) { + if (*l == "environment") { + for (std::vector::const_iterator e = environment.begin(); + e != environment.end(); ++e) { + if (std::find(allCodes.begin(), allCodes.end(), *e) != allCodes.end()) + continue; + if (noneSeen == false) + codes.push_back(*e); + allCodes.push_back(*e); + } + continue; + } else if (*l == "none") { + noneSeen = true; + continue; + } else if (std::find(allCodes.begin(), allCodes.end(), *l) != allCodes.end()) + continue; + + if (noneSeen == false) + codes.push_back(*l); + allCodes.push_back(*l); + } + + for (std::vector::const_iterator b = builtin.begin(); + b != builtin.end(); ++b) + if (std::find(allCodes.begin(), allCodes.end(), *b) == allCodes.end()) + allCodes.push_back(*b); + + if (All == true) + return allCodes; + else + return codes; +} + /*}}}*/ +// getArchitectures - Return Vector of prefered Architectures /*{{{*/ +std::vector const Configuration::getArchitectures(bool const &Cached) { + using std::string; + + std::vector 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); + string dpkgcall = _config->Find("Dir::Bin::dpkg", "dpkg"); + std::vector const dpkgoptions = _config->FindVector("DPkg::options"); + for (std::vector::const_iterator o = dpkgoptions.begin(); + o != dpkgoptions.end(); ++o) + dpkgcall.append(" ").append(*o); + dpkgcall.append(" --print-foreign-architectures 2> /dev/null"); + FILE *dpkg = popen(dpkgcall.c_str(), "r"); + char buf[1024]; + if(dpkg != NULL) { + if (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); + archs.push_back(string(arch, (archend - arch))); + } + arch = strtok(NULL, " "); + } + } + pclose(dpkg); + } + return archs; + } + + if (archs.empty() == true || + std::find(archs.begin(), archs.end(), arch) == archs.end()) + archs.push_back(arch); + + // erase duplicates and empty strings + for (std::vector::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 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::lzma", "/usr/bin/lzma"); + _config->CndSet("Dir::Bin::xz", "/usr/bin/xz"); + _config->CndSet("Dir::Bin::bzip2", "/bin/bzip2"); +} + /*}}}*/ +// 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 +const Configuration::getCompressors(bool const Cached) { + static std::vector compressors; + if (compressors.empty() == false) { + if (Cached == true) + return compressors; + else + compressors.clear(); + } + + setDefaultConfigurationForCompressors(); + + compressors.push_back(Compressor(".", "", "", "", "", 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)); + if (_config->Exists("Dir::Bin::bzip2") == false || FileExists(_config->FindFile("Dir::Bin::bzip2")) == true) + compressors.push_back(Compressor("bzip2",".bz2","bzip2","-9","-d",3)); + if (_config->Exists("Dir::Bin::lzma") == false || FileExists(_config->FindFile("Dir::Bin::lzma")) == true) + compressors.push_back(Compressor("lzma",".lzma","lzma","-9","-d",4)); + if (_config->Exists("Dir::Bin::xz") == false || FileExists(_config->FindFile("Dir::Bin::xz")) == true) + compressors.push_back(Compressor("xz",".xz","xz","-6","-d",5)); + + std::vector const comp = _config->FindVector("APT::Compressor"); + for (std::vector::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 const Configuration::getCompressorExtensions() { + std::vector const compressors = getCompressors(); + std::vector ext; + for (std::vector::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 = 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); +} + /*}}}*/ }