don't perform implicit crossgrades involving M-A:same

[apt.git] / apt-pkg / sourcelist.cc

diff --git a/apt-pkg/sourcelist.cc b/apt-pkg/sourcelist.cc
index 6773b069fbec507178383ed49a6ec7ca2870278b..df2e0b46d725c968310916e5d4f244e391000568 100644 (file)
--- a/apt-pkg/sourcelist.cc
+++ b/apt-pkg/sourcelist.cc
@@ -22,6 +22,7 @@
 #include <apt-pkg/pkgcache.h>
 #include <apt-pkg/cacheiterators.h>
 #include <apt-pkg/debindexfile.h>
 #include <apt-pkg/pkgcache.h>
 #include <apt-pkg/cacheiterators.h>
 #include <apt-pkg/debindexfile.h>

+#include <apt-pkg/debsrcrecords.h>

 
 #include <ctype.h>
 #include <stddef.h>
 
 #include <ctype.h>
 #include <stddef.h>


@@ -98,8 +99,8 @@ bool pkgSourceList::Type::ParseStanza(vector<metaIndex *> &List,      /*{{{*/
    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))); \
    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)))
+   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");
    APT_PLUSMINUS("Architectures", "arch");
    APT_PLUSMINUS("Languages", "lang");
    APT_PLUSMINUS("Targets", "target");


@@ -311,21 +312,25 @@ bool pkgSourceList::ReadMainList()
    Reset();
    // CNC:2003-11-28 - Entries in sources.list have priority over
    //                  entries in sources.list.d.
    Reset();
    // CNC:2003-11-28 - Entries in sources.list have priority over
    //                  entries in sources.list.d.

-   string Main = _config->FindFile("Dir::Etc::sourcelist");
-   string Parts = _config->FindDir("Dir::Etc::sourceparts");
+   string Main = _config->FindFile("Dir::Etc::sourcelist", "/dev/null");
+   string Parts = _config->FindDir("Dir::Etc::sourceparts", "/dev/null");

    
    if (RealFileExists(Main) == true)
       Res &= ReadAppend(Main);
    
    if (RealFileExists(Main) == true)
       Res &= ReadAppend(Main);

-   else if (DirectoryExists(Parts) == false)
+   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)
       Res &= ReadSourceDir(Parts);
       // Only warn if there are no sources.list.d.
       _error->WarningE("DirectoryExists", _("Unable to read %s"), Parts.c_str());
 
    if (DirectoryExists(Parts) == true)
       Res &= ReadSourceDir(Parts);

-   else if (RealFileExists(Main) == false)
+   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());
 
       // 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"))
+      Res &= AddVolatileFile(file, nullptr);
+

    return Res;
 }
                                                                        /*}}}*/
    return Res;
 }
                                                                        /*}}}*/


@@ -418,18 +423,18 @@ bool pkgSourceList::ParseFileOldStyle(std::string const &File)
 /* Returns: the number of stanzas parsed*/
 bool pkgSourceList::ParseFileDeb822(string const &File)
 {
 /* Returns: the number of stanzas parsed*/
 bool pkgSourceList::ParseFileDeb822(string const &File)
 {

-   pkgUserTagSection Tags;
-   unsigned int i = 1;
-

    // see if we can read the file
    FileFd Fd(File, FileFd::ReadOnly);
    // see if we can read the file
    FileFd Fd(File, FileFd::ReadOnly);

-   pkgTagFile Sources(&Fd);
+   pkgTagFile Sources(&Fd, pkgTagFile::SUPPORT_COMMENTS);

    if (Fd.IsOpen() == false || Fd.Failed())
    if (Fd.IsOpen() == false || Fd.Failed())

-      return _error->Error(_("Malformed stanza %u in source list %s (type)"),i,File.c_str());
+      return _error->Error(_("Malformed stanza %u in source list %s (type)"),0,File.c_str());

 
    // read step by step
 
    // read step by step

+   pkgTagSection Tags;
+   unsigned int i = 0;

    while (Sources.Step(Tags) == true)
    {
    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());
 
       if(Tags.Exists("Types") == false)
         return _error->Error(_("Malformed stanza %u in source list %s (type)"),i,File.c_str());
 


@@ -447,8 +452,6 @@ bool pkgSourceList::ParseFileDeb822(string const &File)
 
          if (!Parse->ParseStanza(SrcList, Tags, i, Fd))
             return false;
 
          if (!Parse->ParseStanza(SrcList, Tags, i, Fd))
             return false;

-
-         ++i;

       }
    }
    return true;
       }
    }
    return true;


@@ -542,29 +545,95 @@ void pkgSourceList::AddVolatileFile(pkgIndexFile * const File)            /*{{{*/
       VolatileFiles.push_back(File);
 }
                                                                        /*}}}*/
       VolatileFiles.push_back(File);
 }
                                                                        /*}}}*/

-bool pkgSourceList::AddVolatileFile(std::string const &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);
 {
    // Note: FileExists matches directories and links, too!
    if (File.empty() || FileExists(File) == false)
       return false;
 
    std::string const ext = flExtension(File);

-   if (ext == "deb")
+   // 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")));
       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::File2> fileslst;
+      if (changes.Files2(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
    else

-      return false;
+   {
+      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;
    return true;

+}
+bool pkgSourceList::AddVolatileFile(std::string const &File)
+{
+   return AddVolatileFile(File, nullptr);

 }
                                                                        /*}}}*/
 }
                                                                        /*}}}*/

-void pkgSourceList::AddVolatileFiles(CommandLine &CmdL, std::vector<const char*> * const VolatileCmdL)/*{{{*/
+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;
+   });
+}
+void pkgSourceList::AddVolatileFiles(CommandLine &CmdL, std::vector<const char*> * const VolatileCmdL)

 {
    std::remove_if(CmdL.FileList + 1, CmdL.FileList + 1 + CmdL.FileSize(), [&](char const * const I) {
 {
    std::remove_if(CmdL.FileList + 1, CmdL.FileList + 1 + CmdL.FileSize(), [&](char const * const I) {

-      if (I != nullptr && (I[0] == '/' || (I[0] == '.' && ((I[1] == '.' && I[2] == '/') || I[1] == '/'))))
+      if (I != nullptr && (I[0] == '/' || (I[0] == '.' && (I[1] == '\0' || (I[1] == '.' && (I[2] == '\0' || I[2] == '/')) || I[1] == '/'))))

       {
         if (AddVolatileFile(I))
         {
       {
         if (AddVolatileFile(I))
         {