X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/113942be71c90e7d6a9cff93cc05ac119db526de..a865ed25fa54514224cf4d6f83dd9cf48b7ed02b:/apt-pkg/aptconfiguration.cc

diff --git a/apt-pkg/aptconfiguration.cc b/apt-pkg/aptconfiguration.cc
index b5f29472d..9ccbeecf1 100644
--- a/apt-pkg/aptconfiguration.cc
+++ b/apt-pkg/aptconfiguration.cc
@@ -10,12 +10,14 @@
 // Include Files							/*{{{*/
 #include <apt-pkg/aptconfiguration.h>
 #include <apt-pkg/configuration.h>
+#include <apt-pkg/error.h>
 #include <apt-pkg/fileutl.h>
 #include <apt-pkg/macros.h>
 #include <apt-pkg/strutl.h>
 
 #include <sys/types.h>
 #include <dirent.h>
+#include <stdio.h>
 
 #include <algorithm>
 #include <string>
@@ -37,12 +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","");
@@ -89,6 +90,14 @@ 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;
 }
 									/*}}}*/
@@ -152,49 +161,15 @@ std::vector<std::string> const Configuration::getLanguages(bool const &All,
 			builtin.push_back(c);
 		}
 	}
-
-	// 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 envLong = envMsg.substr(0,lenLong);
-	string const envShort = envLong.substr(0,lenShort);
-	bool envLongIncluded = true;
-
-	// first cornercase: LANG=C, so we use only "en" Translation
-	if (envLong == "C") {
-		codes.push_back("en");
-		allCodes = codes;
-		allCodes.insert(allCodes.end(), builtin.begin(), builtin.end());
-		if (All == true)
-			return allCodes;
-		else
-			return codes;
-	}
-
-	// 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…
-	// TODO: Improve translation acquire system to drop them dynamic
-	char const *needLong[] = { "cs", "en", "pt", "sv", "zh", NULL };
-	if (envLong != envShort) {
-		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();
+	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");
@@ -209,42 +184,47 @@ std::vector<std::string> const Configuration::getLanguages(bool const &All,
 			return codes;
 	}
 
-	// It is very likely we will need to environment codes later,
+	// 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<string> environment;
-	// take care of LC_MESSAGES
-	if (envLongIncluded == false)
-		environment.push_back(envLong);
-	environment.push_back(envShort);
-	// take care of LANGUAGE
-	string envLang = Locale == 0 ? getenv("LANGUAGE") : *(Locale+1);
-	if (envLang.empty() == false) {
-		std::vector<string> env = ExplodeString(envLang,':');
-		short addedLangs = 0; // add a maximum of 3 fallbacks from the environment
-		for (std::vector<string>::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;
-			if (e->find('_') != string::npos) {
-				// Drop LongCodes here - ShortCodes are also included
-				string const shorty = e->substr(0, e->find('_'));
-				char const **n = needLong;
-				for (; *n != NULL; ++n)
-					if (shorty == *n)
-						break;
-				if (*n == NULL)
+	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<string> env = VectorizeString(envLang,':');
+			short addedLangs = 0; // add a maximum of 3 fallbacks from the environment
+			for (std::vector<string>::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);
 			}
-			++addedLangs;
-			environment.push_back(*e);
 		}
+	} else {
+		environment.push_back("en");
 	}
 
-	// Support settings like Acquire::Translation=none on the command line to
+	// Support settings like Acquire::Languages=none on the command line to
 	// override the configuration settings vector of languages.
 	string const forceLang = _config->Find("Acquire::Languages","");
 	if (forceLang.empty() == false) {
@@ -263,6 +243,16 @@ std::vector<std::string> const Configuration::getLanguages(bool const &All,
 			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<string> const lang = _config->FindVector("Acquire::Languages");
 	// the default setting -> "environment, en"
 	if (lang.empty() == true) {
@@ -317,4 +307,153 @@ std::vector<std::string> const Configuration::getLanguages(bool const &All,
 		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 (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<string> const dpkgoptions = _config->FindVector("DPkg::options");
+		for (std::vector<string>::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.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::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<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(".", "", "", "", "", 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<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 = 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);
+}
+									/*}}}*/
 }