+// 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<std::string> 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<string> static allCodes;
+ std::vector<string> 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();
+ }
+ }
+
+ // get the environment language code
+ // 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('.') != string::npos) ? envMsg.find('.') : (lenShort + 3);
+
+ string envLong = envMsg.substr(0,lenLong);
+ string const envShort = envLong.substr(0,lenShort);
+ bool envLongIncluded = true, envShortIncluded = false;
+
+ // first cornercase: LANG=C, so we use only "en" Translation
+ if (envLong == "C") {
+ codes.push_back("en");
+ return codes;
+ }
+
+ if (envLong != envShort) {
+ // to save the servers from unneeded queries, we only try also long codes
+ // for languages it is realistic to have a long code translation file...
+ char const *needLong[] = { "cs", "en", "pt", "sv", "zh", NULL };
+ for (char const **l = needLong; *l != NULL; l++)
+ if (envShort.compare(*l) == 0) {
+ envLongIncluded = false;
+ break;
+ }
+ }
+
+ // we don't add the long code, but we allow the user to do so
+ if (envLongIncluded == true)
+ envLong.clear();
+
+ // 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") {
+ if (oldAcquire != "none")
+ codes.push_back(oldAcquire);
+ return codes;
+ }
+
+ // 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") {
+ if (envLongIncluded == false)
+ codes.push_back(envLong);
+ if (envShortIncluded == false)
+ codes.push_back(envShort);
+ return codes;
+ } else if (forceLang != "none")
+ codes.push_back(forceLang);
+ return codes;
+ }
+
+ std::vector<string> const lang = _config->FindVector("Acquire::Languages");
+ // the default setting -> "environment, en"
+ if (lang.empty() == true) {
+ if (envLongIncluded == false)
+ codes.push_back(envLong);
+ if (envShortIncluded == false)
+ codes.push_back(envShort);
+ if (envShort != "en")
+ codes.push_back("en");
+ 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<string>::const_iterator l = lang.begin();
+ l != lang.end(); l++) {
+ if (*l == "environment") {
+ if (envLongIncluded == true && envShortIncluded == true)
+ continue;
+ if (envLongIncluded == false) {
+ envLongIncluded = true;
+ if (noneSeen == false)
+ codes.push_back(envLong);
+ allCodes.push_back(envLong);
+ }
+ if (envShortIncluded == false) {
+ envShortIncluded = true;
+ if (noneSeen == false)
+ codes.push_back(envShort);
+ allCodes.push_back(envShort);
+ }
+ continue;
+ } else if (*l == "none") {
+ noneSeen = true;
+ continue;
+ } else if ((envLongIncluded == true && *l == envLong) ||
+ (envShortIncluded == true && *l == envShort))
+ continue;
+
+ if (noneSeen == false)
+ codes.push_back(*l);
+ allCodes.push_back(*l);
+ }
+ if (All == true)
+ return allCodes;
+ else
+ return codes;
+}
+ /*}}}*/
+// getArchitectures - Return Vector of prefered 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 (archs.empty() == true ||
+ std::find(archs.begin(), archs.end(), arch) == archs.end())
+ archs.push_back(arch);
+ 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());
+}
+ /*}}}*/
projects / apt.git / blobdiff