Adding upstream version 2.7.12.upstream/2.7.12

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 629 insertions, 0 deletions

diff --git a/apt-pkg/sourcelist.cc b/apt-pkg/sourcelist.cc
new file mode 100644
index 0000000..65412b4
--- /dev/null
+++ b/apt-pkg/sourcelist.cc
@@ -0,0 +1,629 @@
+// -*- mode: cpp; mode: fold -*-
+// Description								/*{{{*/
+/* ######################################################################
+
+   List of Sources
+   
+   ##################################################################### */
+									/*}}}*/
+// Include Files							/*{{{*/
+#include <config.h>
+
+#include <apt-pkg/cmndline.h>
+#include <apt-pkg/configuration.h>
+#include <apt-pkg/debindexfile.h>
+#include <apt-pkg/debsrcrecords.h>
+#include <apt-pkg/error.h>
+#include <apt-pkg/fileutl.h>
+#include <apt-pkg/indexfile.h>
+#include <apt-pkg/metaindex.h>
+#include <apt-pkg/pkgcache.h>
+#include <apt-pkg/sourcelist.h>
+#include <apt-pkg/strutl.h>
+#include <apt-pkg/tagfile.h>
+
+#include <algorithm>
+#include <cctype>
+#include <cstddef>
+#include <cstring>
+#include <ctime>
+#include <fstream>
+#include <map>
+#include <string>
+#include <vector>
+
+#include <apti18n.h>
+									/*}}}*/
+
+using namespace std;
+
+// Global list of Items supported
+static pkgSourceList::Type *ItmList[10];
+pkgSourceList::Type **pkgSourceList::Type::GlobalList = ItmList;
+unsigned long pkgSourceList::Type::GlobalListLen = 0;
+
+static std::vector<std::string> FindMultiValue(pkgTagSection &Tags, char const *const Field) /*{{{*/
+{
+   auto values = Tags.FindS(Field);
+   // we ignore duplicate spaces by removing empty values
+   std::replace_if(values.begin(), values.end(), isspace_ascii, ' ');
+   auto vect = VectorizeString(values, ' ');
+   vect.erase(std::remove_if(vect.begin(), vect.end(), [](std::string const &s) { return s.empty(); }), vect.end());
+   return vect;
+}
+									/*}}}*/
+
+// Type::Type - Constructor						/*{{{*/
+// ---------------------------------------------------------------------
+/* Link this to the global list of items*/
+pkgSourceList::Type::Type(char const * const pName, char const * const pLabel) : Name(pName), Label(pLabel)
+{
+   ItmList[GlobalListLen] = this;
+   ++GlobalListLen;
+}
+pkgSourceList::Type::~Type() {}
+									/*}}}*/
+// Type::GetType - Get a specific meta for a given type			/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+pkgSourceList::Type *pkgSourceList::Type::GetType(const char *Type)
+{
+   for (unsigned I = 0; I != GlobalListLen; ++I)
+      if (strcmp(GlobalList[I]->Name,Type) == 0)
+	 return GlobalList[I];
+   return 0;
+}
+									/*}}}*/
+// Type::FixupURI - Normalize the URI and check it..			/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool pkgSourceList::Type::FixupURI(string &URI) const
+{
+   if (URI.empty() == true)
+      return false;
+
+   if (URI.find(':') == string::npos)
+      return false;
+
+   URI = ::URI{SubstVar(URI, "$(ARCH)", _config->Find("APT::Architecture"))};
+
+   // Make sure that the URI is / postfixed
+   if (URI.back() != '/')
+      URI.push_back('/');
+
+   return true;
+}
+									/*}}}*/
+bool pkgSourceList::Type::ParseStanza(vector<metaIndex *> &List,	/*{{{*/
+                                      pkgTagSection &Tags,
+                                      unsigned int const i,
+                                      FileFd &Fd)
+{
+   map<string, string> Options;
+
+   string Enabled = Tags.FindS("Enabled");
+   if (Enabled.empty() == false && StringToBool(Enabled) == false)
+      return true;
+
+   std::map<char const * const, std::pair<char const * const, bool> > mapping;
+#define APT_PLUSMINUS(X, Y) \
+   mapping.insert(std::make_pair(X, std::make_pair(Y, true))); \
+   mapping.insert(std::make_pair(X "-Add", std::make_pair(Y "+", true))); \
+   mapping.insert(std::make_pair(X "-Remove", std::make_pair(Y "-", true)))
+   APT_PLUSMINUS("Architectures", "arch");
+   APT_PLUSMINUS("Languages", "lang");
+   APT_PLUSMINUS("Targets", "target");
+#undef APT_PLUSMINUS
+   mapping.insert(std::make_pair("Trusted", std::make_pair("trusted", false)));
+   mapping.insert(std::make_pair("Check-Valid-Until", std::make_pair("check-valid-until", false)));
+   mapping.insert(std::make_pair("Valid-Until-Min", std::make_pair("valid-until-min", false)));
+   mapping.insert(std::make_pair("Valid-Until-Max", std::make_pair("valid-until-max", false)));
+   mapping.insert(std::make_pair("Check-Date", std::make_pair("check-date", false)));
+   mapping.insert(std::make_pair("Date-Max-Future", std::make_pair("date-max-future", false)));
+   mapping.insert(std::make_pair("Snapshot", std::make_pair("snapshot", false)));
+   mapping.insert(std::make_pair("Signed-By", std::make_pair("signed-by", false)));
+   mapping.insert(std::make_pair("PDiffs", std::make_pair("pdiffs", false)));
+   mapping.insert(std::make_pair("By-Hash", std::make_pair("by-hash", false)));
+
+   for (std::map<char const * const, std::pair<char const * const, bool> >::const_iterator m = mapping.begin(); m != mapping.end(); ++m)
+      if (Tags.Exists(m->first))
+      {
+	 if (m->second.second)
+	 {
+	    auto const values = FindMultiValue(Tags, m->first);
+	    Options[m->second.first] = APT::String::Join(values, ",");
+	 }
+	 else
+	    Options[m->second.first] = Tags.FindS(m->first);
+      }
+
+   {
+      std::string entry;
+      strprintf(entry, "%s:%i", Fd.Name().c_str(), i);
+      Options["sourceslist-entry"] = entry;
+   }
+
+   Options["sourceslist-entry-is-deb822"] = "true";
+
+   // now create one item per suite/section
+   auto const list_uris = FindMultiValue(Tags, "URIs");
+   auto const list_comp = FindMultiValue(Tags, "Components");
+   auto list_suite = FindMultiValue(Tags, "Suites");
+   {
+      auto const nativeArch = _config->Find("APT::Architecture");
+      std::transform(list_suite.begin(), list_suite.end(), list_suite.begin(),
+		     [&](std::string const &suite) { return SubstVar(suite, "$(ARCH)", nativeArch); });
+   }
+
+   if (list_uris.empty())
+      // TRANSLATOR: %u is a line number, the first %s is a filename of a file with the extension "second %s" and the third %s is a unique identifier for bugreports
+      return _error->Error(_("Malformed entry %u in %s file %s (%s)"), i, "sources", Fd.Name().c_str(), "URI");
+
+   if (list_suite.empty())
+      return _error->Error(_("Malformed entry %u in %s file %s (%s)"), i, "sources", Fd.Name().c_str(), "Suite");
+
+   for (auto URI : list_uris)
+   {
+      if (FixupURI(URI) == false)
+	 return _error->Error(_("Malformed entry %u in %s file %s (%s)"), i, "sources", Fd.Name().c_str(), "URI parse");
+
+      for (auto const &S : list_suite)
+      {
+	 if (likely(S.empty() == false) && S[S.size() - 1] == '/')
+	 {
+	    if (list_comp.empty() == false)
+	       return _error->Error(_("Malformed entry %u in %s file %s (%s)"), i, "sources", Fd.Name().c_str(), "absolute Suite Component");
+	    if (CreateItem(List, URI, S, "", Options) == false)
+	       return false;
+	 }
+	 else
+	 {
+	    if (list_comp.empty())
+	       return _error->Error(_("Malformed entry %u in %s file %s (%s)"), i, "sources", Fd.Name().c_str(), "Component");
+
+	    for (auto const &C : list_comp)
+	       if (CreateItem(List, URI, S, C, Options) == false)
+		  return false;
+	 }
+      }
+   }
+   return true;
+}
+									/*}}}*/
+// Type::ParseLine - Parse a single line				/*{{{*/
+// ---------------------------------------------------------------------
+/* This is a generic one that is the 'usual' format for sources.list
+   Weird types may override this. */
+bool pkgSourceList::Type::ParseLine(vector<metaIndex *> &List,
+				    const char *Buffer,
+				    unsigned int const CurLine,
+				    string const &File) const
+{
+   for (;Buffer != 0 && isspace(*Buffer); ++Buffer); // Skip whitespaces
+
+   // Parse option field if it exists
+   // e.g.: [ option1=value1 option2=value2 ]
+   map<string, string> Options;
+   {
+      std::string entry;
+      strprintf(entry, "%s:%i", File.c_str(), CurLine);
+      Options["sourceslist-entry"] = entry;
+   }
+   if (Buffer != 0 && Buffer[0] == '[')
+   {
+      ++Buffer; // ignore the [
+      for (;Buffer != 0 && isspace(*Buffer); ++Buffer); // Skip whitespaces
+      while (*Buffer != ']')
+      {
+	 // get one option, e.g. option1=value1
+	 string option;
+	 if (ParseQuoteWord(Buffer,option) == false)
+	    return _error->Error(_("Malformed entry %u in %s file %s (%s)"), CurLine, "list", File.c_str(), "[option] unparsable");
+
+	 if (option.length() < 3)
+	    return _error->Error(_("Malformed entry %u in %s file %s (%s)"), CurLine, "list", File.c_str(), "[option] too short");
+
+	 // accept options even if the last has no space before the ]-end marker
+	 if (option.at(option.length()-1) == ']')
+	 {
+	    for (; *Buffer != ']'; --Buffer);
+	    option.resize(option.length()-1);
+	 }
+
+	 size_t const needle = option.find('=');
+	 if (needle == string::npos)
+	    return _error->Error(_("Malformed entry %u in %s file %s (%s)"), CurLine, "list", File.c_str(), "[option] not assignment");
+
+	 string const key = string(option, 0, needle);
+	 string const value = string(option, needle + 1, option.length());
+
+	 if (key.empty() == true)
+	    return _error->Error(_("Malformed entry %u in %s file %s (%s)"), CurLine, "list", File.c_str(), "[option] no key");
+
+	 if (value.empty() == true)
+	    return _error->Error(_("Malformed entry %u in %s file %s (%s)"), CurLine, "list", File.c_str(), "[option] no value");
+
+	 Options[key] = value;
+      }
+      ++Buffer; // ignore the ]
+      for (;Buffer != 0 && isspace(*Buffer); ++Buffer); // Skip whitespaces
+   }
+
+   string URI;
+   string Dist;
+   string Section;
+
+   if (ParseQuoteWord(Buffer,URI) == false)
+      return _error->Error(_("Malformed entry %u in %s file %s (%s)"), CurLine, "list", File.c_str(), "URI");
+   if (ParseQuoteWord(Buffer,Dist) == false)
+      return _error->Error(_("Malformed entry %u in %s file %s (%s)"), CurLine, "list", File.c_str(), "Suite");
+
+   if (FixupURI(URI) == false)
+      return _error->Error(_("Malformed entry %u in %s file %s (%s)"), CurLine, "list", File.c_str(), "URI parse");
+
+   // Check for an absolute dists specification.
+   if (Dist.empty() == false && Dist[Dist.size() - 1] == '/')
+   {
+      if (ParseQuoteWord(Buffer,Section) == true)
+	 return _error->Error(_("Malformed entry %u in %s file %s (%s)"), CurLine, "list", File.c_str(), "absolute Suite Component");
+      Dist = SubstVar(Dist,"$(ARCH)",_config->Find("APT::Architecture"));
+      return CreateItem(List, URI, Dist, Section, Options);
+   }
+
+   // Grab the rest of the dists
+   if (ParseQuoteWord(Buffer,Section) == false)
+      return _error->Error(_("Malformed entry %u in %s file %s (%s)"), CurLine, "list", File.c_str(), "Component");
+
+   do
+   {
+      if (CreateItem(List, URI, Dist, Section, Options) == false)
+	 return false;
+   }
+   while (ParseQuoteWord(Buffer,Section) == true);
+
+   return true;
+}
+									/*}}}*/
+// SourceList::pkgSourceList - Constructors				/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+pkgSourceList::pkgSourceList() : d(NULL)
+{
+}
+									/*}}}*/
+// SourceList::~pkgSourceList - Destructor				/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+pkgSourceList::~pkgSourceList()
+{
+   for (const_iterator I = SrcList.begin(); I != SrcList.end(); ++I)
+      delete *I;
+   SrcList.clear();
+   for (auto  F = VolatileFiles.begin(); F != VolatileFiles.end(); ++F)
+      delete (*F);
+   VolatileFiles.clear();
+}
+									/*}}}*/
+// SourceList::ReadMainList - Read the main source list from etc	/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool pkgSourceList::ReadMainList()
+{
+   Reset();
+   // CNC:2003-11-28 - Entries in sources.list have priority over
+   //                  entries in sources.list.d.
+   string Main = _config->FindFile("Dir::Etc::sourcelist", "/dev/null");
+   string Parts = _config->FindDir("Dir::Etc::sourceparts", "/dev/null");
+
+   _error->PushToStack();
+   if (RealFileExists(Main) == true)
+      ReadAppend(Main);
+   else if (DirectoryExists(Parts) == false && APT::String::Endswith(Parts, "/dev/null") == false)
+      // Only warn if there are no sources.list.d.
+      _error->WarningE("DirectoryExists", _("Unable to read %s"), Parts.c_str());
+
+   if (DirectoryExists(Parts) == true)
+      ReadSourceDir(Parts);
+   else if (Main.empty() == false && RealFileExists(Main) == false &&
+	 APT::String::Endswith(Parts, "/dev/null") == false)
+      // Only warn if there is no sources.list file.
+      _error->WarningE("RealFileExists", _("Unable to read %s"), Main.c_str());
+
+   for (auto && file: _config->FindVector("APT::Sources::With"))
+      AddVolatileFile(file, nullptr);
+
+   auto good = _error->PendingError() == false;
+   _error->MergeWithStack();
+   return good;
+}
+									/*}}}*/
+// SourceList::Reset - Clear the sourcelist contents			/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+void pkgSourceList::Reset()
+{
+   for (const_iterator I = SrcList.begin(); I != SrcList.end(); ++I)
+      delete *I;
+   SrcList.clear();
+}
+									/*}}}*/
+// SourceList::Read - Parse the sourcelist file				/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool pkgSourceList::Read(string const &File)
+{
+   Reset();
+   return ReadAppend(File);
+}
+									/*}}}*/
+// SourceList::ReadAppend - Parse a sourcelist file			/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool pkgSourceList::ReadAppend(string const &File)
+{
+   if (flExtension(File) == "sources")
+      return ParseFileDeb822(File);
+   else
+      return ParseFileOldStyle(File);
+}
+									/*}}}*/
+// SourceList::ReadFileOldStyle - Read Traditional style sources.list 	/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool pkgSourceList::ParseFileOldStyle(std::string const &File)
+{
+   FileFd Fd;
+   if (OpenConfigurationFileFd(File, Fd) == false)
+      return false;
+
+   std::string Buffer;
+   for (unsigned int CurLine = 1; Fd.ReadLine(Buffer); ++CurLine)
+   {
+      // remove comments
+      size_t curpos = 0;
+      while ((curpos = Buffer.find('#', curpos)) != std::string::npos)
+      {
+	 size_t const openbrackets = std::count(Buffer.begin(), Buffer.begin() + curpos, '[');
+	 size_t const closedbrackets = std::count(Buffer.begin(), Buffer.begin() + curpos, ']');
+	 if (openbrackets > closedbrackets)
+	 {
+	    // a # in an option, unlikely, but oh well, it was supported so stick to it
+	    ++curpos;
+	    continue;
+	 }
+	 Buffer.erase(curpos);
+	 break;
+      }
+      // remove spaces before/after
+      curpos = Buffer.find_first_not_of(" \t\r");
+      if (curpos != 0)
+	 Buffer.erase(0, curpos);
+      curpos = Buffer.find_last_not_of(" \t\r");
+      if (curpos != std::string::npos)
+	 Buffer.erase(curpos + 1);
+
+      if (Buffer.empty())
+	 continue;
+
+      // Grok it
+      std::string const LineType = Buffer.substr(0, Buffer.find_first_of(" \t\v"));
+      if (LineType.empty() || LineType == Buffer)
+	 return _error->Error(_("Malformed line %u in source list %s (type)"),CurLine,File.c_str());
+
+      Type *Parse = Type::GetType(LineType.c_str());
+      if (Parse == 0)
+	 return _error->Error(_("Type '%s' is not known on line %u in source list %s"),LineType.c_str(),CurLine,File.c_str());
+
+      if (Parse->ParseLine(SrcList, Buffer.c_str() + LineType.length(), CurLine, File) == false)
+	 return false;
+   }
+   return true;
+}
+									/*}}}*/
+// SourceList::ParseFileDeb822 - Parse deb822 style sources.list 	/*{{{*/
+// ---------------------------------------------------------------------
+/* Returns: the number of stanzas parsed*/
+bool pkgSourceList::ParseFileDeb822(string const &File)
+{
+   // see if we can read the file
+   FileFd Fd;
+   if (OpenConfigurationFileFd(File, Fd) == false)
+      return false;
+   pkgTagFile Sources(&Fd, pkgTagFile::SUPPORT_COMMENTS);
+   if (Fd.IsOpen() == false || Fd.Failed())
+      return _error->Error(_("Malformed stanza %u in source list %s (type)"),0,File.c_str());
+
+   // read step by step
+   pkgTagSection Tags;
+   unsigned int i = 0;
+   while (Sources.Step(Tags) == true)
+   {
+      ++i;
+      if(Tags.Exists("Types") == false)
+	 return _error->Error(_("Malformed stanza %u in source list %s (type)"),i,File.c_str());
+
+      for (auto const &type : FindMultiValue(Tags, "Types"))
+      {
+	 Type *Parse = Type::GetType(type.c_str());
+	 if (Parse == 0)
+	 {
+	    _error->Error(_("Type '%s' is not known on stanza %u in source list %s"), type.c_str(), i, Fd.Name().c_str());
+	    return false;
+	 }
+
+	 if (!Parse->ParseStanza(SrcList, Tags, i, Fd))
+	    return false;
+      }
+   }
+   return true;
+}
+									/*}}}*/
+// SourceList::FindIndex - Get the index associated with a file		/*{{{*/
+static bool FindInIndexFileContainer(std::vector<pkgIndexFile *> const &Cont, pkgCache::PkgFileIterator const &File, pkgIndexFile *&Found)
+{
+   auto const J = std::find_if(Cont.begin(), Cont.end(), [&File](pkgIndexFile const * const J) {
+	 return J->FindInCache(*File.Cache()) == File;
+   });
+   if (J != Cont.end())
+   {
+      Found = (*J);
+      return true;
+   }
+   return false;
+}
+bool pkgSourceList::FindIndex(pkgCache::PkgFileIterator File,
+			      pkgIndexFile *&Found) const
+{
+   for (const_iterator I = SrcList.begin(); I != SrcList.end(); ++I)
+      if (FindInIndexFileContainer(*(*I)->GetIndexFiles(), File, Found))
+	 return true;
+
+   return FindInIndexFileContainer(VolatileFiles, File, Found);
+}
+									/*}}}*/
+// SourceList::GetIndexes - Load the index files into the downloader	/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool pkgSourceList::GetIndexes(pkgAcquire *Owner, bool GetAll) const
+{
+   for (const_iterator I = SrcList.begin(); I != SrcList.end(); ++I)
+      if ((*I)->GetIndexes(Owner,GetAll) == false)
+	 return false;
+   return true;
+}
+									/*}}}*/
+// CNC:2003-03-03 - By Anton V. Denisov <avd@altlinux.org>.
+// SourceList::ReadSourceDir - Read a directory with sources files
+// Based on ReadConfigDir()						/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool pkgSourceList::ReadSourceDir(string const &Dir)
+{
+   std::vector<std::string> const ext = {"list", "sources"};
+   // Read the files
+   bool good = true;
+   for (auto const &I : GetListOfFilesInDir(Dir, ext, true))
+      good = ReadAppend(I) && good;
+   return good;
+}
+									/*}}}*/
+// GetLastModified()						/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+time_t pkgSourceList::GetLastModifiedTime()
+{
+   vector<string> List;
+
+   string Main = _config->FindFile("Dir::Etc::sourcelist");
+   string Parts = _config->FindDir("Dir::Etc::sourceparts");
+
+   // go over the parts
+   if (DirectoryExists(Parts) == true)
+      List = GetListOfFilesInDir(Parts, "list", true);
+
+   // calculate the time
+   std::vector<time_t> modtimes;
+   modtimes.reserve(1 + List.size());
+   modtimes.push_back(GetModificationTime(Main));
+   std::transform(List.begin(), List.end(), std::back_inserter(modtimes), GetModificationTime);
+   auto const maxmtime = std::max_element(modtimes.begin(), modtimes.end());
+   return *maxmtime;
+}
+									/*}}}*/
+std::vector<pkgIndexFile*> pkgSourceList::GetVolatileFiles() const	/*{{{*/
+{
+   return VolatileFiles;
+}
+									/*}}}*/
+void pkgSourceList::AddVolatileFile(pkgIndexFile * const File)		/*{{{*/
+{
+   if (File != nullptr)
+      VolatileFiles.push_back(File);
+}
+									/*}}}*/
+static bool fileNameMatches(std::string const &filename, std::string const &idxtype)/*{{{*/
+{
+   for (auto && type: APT::Configuration::getCompressionTypes())
+   {
+      if (type == "uncompressed")
+      {
+	 if (filename == idxtype || APT::String::Endswith(filename, '_' + idxtype))
+	    return true;
+      }
+      else if (filename == idxtype + '.' + type ||
+	    APT::String::Endswith(filename, '_' + idxtype + '.' + type))
+	 return true;
+   }
+   return false;
+}
+									/*}}}*/
+bool pkgSourceList::AddVolatileFile(std::string const &File, std::vector<std::string> * const VolatileCmdL)/*{{{*/
+{
+   // Note: FileExists matches directories and links, too!
+   if (File.empty() || FileExists(File) == false)
+      return false;
+
+   std::string const ext = flExtension(File);
+   // udeb is not included as installing it is usually a mistake rather than intended
+   if (ext == "deb" || ext == "ddeb")
+      AddVolatileFile(new debDebPkgFileIndex(File));
+   else if (ext == "dsc")
+      AddVolatileFile(new debDscFileIndex(File));
+   else if (FileExists(flCombine(File, "debian/control")))
+      AddVolatileFile(new debDscFileIndex(flCombine(File, "debian/control")));
+   else if (ext == "changes")
+   {
+      debDscRecordParser changes(File, nullptr);
+      std::vector<pkgSrcRecords::File> fileslst;
+      if (changes.Files(fileslst) == false || fileslst.empty())
+	 return false;
+      auto const basedir = flNotFile(File);
+      for (auto && file: fileslst)
+      {
+	 auto const name = flCombine(basedir, file.Path);
+	 AddVolatileFile(name, VolatileCmdL);
+	 if (file.Hashes.VerifyFile(name) == false)
+	    return _error->Error("The file %s does not match with the hashes in the %s file!", name.c_str(), File.c_str());
+      }
+      return true;
+   }
+   else
+   {
+      auto const filename = flNotDir(File);
+      auto const Target = IndexTarget(File, filename, File, "file:" + File, false, true, {
+	 { "FILENAME", File },
+	 { "REPO_URI", "file:" + flAbsPath(flNotFile(File)) + '/' },
+	 { "COMPONENT", "volatile-packages-file" },
+      });
+      if (fileNameMatches(filename, "Packages"))
+	 AddVolatileFile(new debPackagesIndex(Target, true));
+      else if (fileNameMatches(filename, "Sources"))
+	 AddVolatileFile(new debSourcesIndex(Target, true));
+      else
+	 return false;
+   }
+
+   if (VolatileCmdL != nullptr)
+      VolatileCmdL->push_back(File);
+   return true;
+}
+bool pkgSourceList::AddVolatileFile(std::string const &File)
+{
+   return AddVolatileFile(File, nullptr);
+}
+									/*}}}*/
+void pkgSourceList::AddVolatileFiles(CommandLine &CmdL, std::vector<std::string> * const VolatileCmdL)/*{{{*/
+{
+   std::remove_if(CmdL.FileList + 1, CmdL.FileList + 1 + CmdL.FileSize(), [&](char const * const I) {
+      if (I != nullptr && (I[0] == '/' || (I[0] == '.' && (I[1] == '\0' || (I[1] == '.' && (I[2] == '\0' || I[2] == '/')) || I[1] == '/'))))
+      {
+	 if (AddVolatileFile(I, VolatileCmdL))
+	    ;
+	 else
+	    _error->Error(_("Unsupported file %s given on commandline"), I);
+	 return true;
+      }
+      return false;
+   });
+}
+									/*}}}*/