* apt-pkg/deb/deblistparser.cc:

[apt.git] / apt-pkg / deb / deblistparser.cc

diff --git a/apt-pkg/deb/deblistparser.cc b/apt-pkg/deb/deblistparser.cc
index 16e6ee332b1ea2dfe37ee47bc82c576e0319d6fd..ddbd0d31a61fc2c1504291c75015f36479096aa3 100644 (file)
--- a/apt-pkg/deb/deblistparser.cc
+++ b/apt-pkg/deb/deblistparser.cc
@@ -17,10 +17,10 @@
 #include <apt-pkg/strutl.h>
 #include <apt-pkg/crc-16.h>
 #include <apt-pkg/md5.h>
 #include <apt-pkg/strutl.h>
 #include <apt-pkg/crc-16.h>
 #include <apt-pkg/md5.h>

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

 
 

+#include <fnmatch.h>

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

-
-#include <system.h>

                                                                        /*}}}*/
 
 static debListParser::WordList PrioList[] = {{"important",pkgCache::State::Important},
                                                                        /*}}}*/
 
 static debListParser::WordList PrioList[] = {{"important",pkgCache::State::Important},


@@ -32,10 +32,13 @@ static debListParser::WordList PrioList[] = {{"important",pkgCache::State::Impor
 
 // ListParser::debListParser - Constructor                             /*{{{*/
 // ---------------------------------------------------------------------
 
 // ListParser::debListParser - Constructor                             /*{{{*/
 // ---------------------------------------------------------------------

-/* */
-debListParser::debListParser(FileFd *File) : Tags(File)
-{
-   Arch = _config->Find("APT::architecture");
+/* Provide an architecture and only this one and "all" will be accepted
+   in Step(), if no Architecture is given we will accept every arch
+   we would accept in general with checkArchitecture() */
+debListParser::debListParser(FileFd *File, string const &Arch) : Tags(File),
+                               Arch(Arch) {
+   if (Arch == "native")
+      this->Arch = _config->Find("APT::Architecture");

 }
                                                                        /*}}}*/
 // ListParser::UniqFindTagWrite - Find the tag and write a unq string  /*{{{*/
 }
                                                                        /*}}}*/
 // ListParser::UniqFindTagWrite - Find the tag and write a unq string  /*{{{*/


@@ -53,14 +56,41 @@ unsigned long debListParser::UniqFindTagWrite(const char *Tag)
 // ListParser::Package - Return the package name                       /*{{{*/
 // ---------------------------------------------------------------------
 /* This is to return the name of the package this section describes */
 // ListParser::Package - Return the package name                       /*{{{*/
 // ---------------------------------------------------------------------
 /* This is to return the name of the package this section describes */

-string debListParser::Package()
-{
-   string Result = Section.FindS("Package");
-   if (Result.empty() == true)
+string debListParser::Package() {
+   string const Result = Section.FindS("Package");
+   if(unlikely(Result.empty() == true))

       _error->Error("Encountered a section with no Package: header");
    return Result;
 }
                                                                        /*}}}*/
       _error->Error("Encountered a section with no Package: header");
    return Result;
 }
                                                                        /*}}}*/

+// ListParser::Architecture - Return the package arch                  /*{{{*/
+// ---------------------------------------------------------------------
+/* This will return the Architecture of the package this section describes
+   Note that architecture "all" packages will get the architecture of the
+   Packages file parsed here. */
+string debListParser::Architecture() {
+   string const Result = Section.FindS("Architecture");
+   if (Result.empty() == true || Result == "all")
+   {
+      if (Arch.empty() == true)
+        /* FIXME: this is a problem for installed arch all
+           packages as we don't know from which arch this
+           package was installed - and therefore which
+           dependency this package resolves. */
+        return _config->Find("APT::Architecture");
+      else
+        return Arch;
+   }
+   return Result;
+}
+                                                                       /*}}}*/
+// ListParser::ArchitectureAll                                         /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool debListParser::ArchitectureAll() {
+   return Section.FindS("Architecture") == "all";
+}
+                                                                       /*}}}*/

 // ListParser::Version - Return the version string                     /*{{{*/
 // ---------------------------------------------------------------------
 /* This is to return the string describing the version in debian form,
 // ListParser::Version - Return the version string                     /*{{{*/
 // ---------------------------------------------------------------------
 /* This is to return the string describing the version in debian form,


@@ -78,13 +108,35 @@ bool debListParser::NewVersion(pkgCache::VerIterator Ver)
 {
    // Parse the section
    Ver->Section = UniqFindTagWrite("Section");
 {
    // Parse the section
    Ver->Section = UniqFindTagWrite("Section");

-   Ver->Arch = UniqFindTagWrite("Architecture");
-   
+
+   // Parse multi-arch
+   if (Section.FindS("Architecture") == "all")
+      /* Arch all packages can't have a Multi-Arch field,
+         but we need a special treatment for them nonetheless */
+      Ver->MultiArch = pkgCache::Version::All;
+   else
+   {
+      string const MultiArch = Section.FindS("Multi-Arch");
+      if (MultiArch.empty() == true)
+        Ver->MultiArch = pkgCache::Version::None;
+      else if (MultiArch == "same")
+        Ver->MultiArch = pkgCache::Version::Same;
+      else if (MultiArch == "foreign")
+        Ver->MultiArch = pkgCache::Version::Foreign;
+      else if (MultiArch == "allowed")
+        Ver->MultiArch = pkgCache::Version::Allowed;
+      else
+      {
+        _error->Warning("Unknown Multi-Arch type »%s« for package »%s«",
+                       MultiArch.c_str(), Section.FindS("Package").c_str());
+        Ver->MultiArch = pkgCache::Version::None;
+      }
+   }
+

    // Archive Size
    // Archive Size

-   Ver->Size = (unsigned)Section.FindI("Size");
-   
+   Ver->Size = Section.FindULL("Size");

    // Unpacked Size (in K)
    // Unpacked Size (in K)

-   Ver->InstalledSize = (unsigned)Section.FindI("Installed-Size");
+   Ver->InstalledSize = Section.FindULL("Installed-Size");

    Ver->InstalledSize *= 1024;
 
    // Priority
    Ver->InstalledSize *= 1024;
 
    // Priority


@@ -96,6 +148,25 @@ bool debListParser::NewVersion(pkgCache::VerIterator Ver)
         Ver->Priority = pkgCache::State::Extra;
    }
 
         Ver->Priority = pkgCache::State::Extra;
    }
 

+   if (Ver->MultiArch == pkgCache::Version::All)
+   {
+      /* We maintain a "pseudo" arch=all package for architecture all versions
+        on which these versions can depend on. This pseudo package is many used
+        for downloading/installing: The other pseudo-packages will degenerate
+        to a NOP in the download/install step - this package will ensure that
+        it is downloaded only one time and installed only one time -- even if
+        the architecture bound versions coming in and out on regular basis. */
+      bool const static multiArch = APT::Configuration::getArchitectures().size() > 1;
+      if (strcmp(Ver.Arch(true),"all") == 0)
+        return true;
+      else if (multiArch == true)
+      {
+        // our pseudo packages have no size to not confuse the fetcher
+        Ver->Size = 0;
+        Ver->InstalledSize = 0;
+      }
+   }
+

    if (ParseDepends(Ver,"Depends",pkgCache::Dep::Depends) == false)
       return false;
    if (ParseDepends(Ver,"Pre-Depends",pkgCache::Dep::PreDepends) == false)
    if (ParseDepends(Ver,"Depends",pkgCache::Dep::Depends) == false)
       return false;
    if (ParseDepends(Ver,"Pre-Depends",pkgCache::Dep::PreDepends) == false)


@@ -184,8 +255,16 @@ bool debListParser::UsePackage(pkgCache::PkgIterator Pkg,
 {
    if (Pkg->Section == 0)
       Pkg->Section = UniqFindTagWrite("Section");
 {
    if (Pkg->Section == 0)
       Pkg->Section = UniqFindTagWrite("Section");

-   if (Section.FindFlag("Essential",Pkg->Flags,pkgCache::Flag::Essential) == false)
-      return false;
+
+   // Packages which are not from the "native" arch doesn't get the essential flag
+   // in the default "native" mode - it is also possible to mark "all" or "none".
+   // The "installed" mode is handled by ParseStatus(), See #544481 and friends.
+   string const static myArch = _config->Find("APT::Architecture");
+   string const static essential = _config->Find("pkgCacheGen::Essential", "native");
+   if ((essential == "native" && Pkg->Arch != 0 && myArch == Pkg.Arch()) ||
+       essential == "all")
+      if (Section.FindFlag("Essential",Pkg->Flags,pkgCache::Flag::Essential) == false)
+        return false;

    if (Section.FindFlag("Important",Pkg->Flags,pkgCache::Flag::Important) == false)
       return false;
 
    if (Section.FindFlag("Important",Pkg->Flags,pkgCache::Flag::Important) == false)
       return false;
 


@@ -259,7 +338,13 @@ bool debListParser::ParseStatus(pkgCache::PkgIterator Pkg,
    const char *Stop;
    if (Section.Find("Status",Start,Stop) == false)
       return true;
    const char *Stop;
    if (Section.Find("Status",Start,Stop) == false)
       return true;

-   
+
+   // UsePackage() is responsible for setting the flag in the default case
+   bool const static essential = _config->Find("pkgCacheGen::Essential", "") == "installed";
+   if (essential == true &&
+       Section.FindFlag("Essential",Pkg->Flags,pkgCache::Flag::Essential) == false)
+      return false;
+

    // Isolate the first word
    const char *I = Start;
    for(; I < Stop && *I != ' '; I++);
    // Isolate the first word
    const char *I = Start;
    for(; I < Stop && *I != ' '; I++);


@@ -395,7 +480,8 @@ const char *debListParser::ConvertRelation(const char *I,unsigned int &Op)
    bit by bit. */
 const char *debListParser::ParseDepends(const char *Start,const char *Stop,
                                        string &Package,string &Ver,
    bit by bit. */
 const char *debListParser::ParseDepends(const char *Start,const char *Stop,
                                        string &Package,string &Ver,

-                                       unsigned int &Op, bool ParseArchFlags)
+                                       unsigned int &Op, bool const &ParseArchFlags,
+                                       bool const &StripMultiArch)

 {
    // Strip off leading space
    for (;Start != Stop && isspace(*Start) != 0; Start++);
 {
    // Strip off leading space
    for (;Start != Stop && isspace(*Start) != 0; Start++);


@@ -414,7 +500,14 @@ const char *debListParser::ParseDepends(const char *Start,const char *Stop,
    
    // Stash the package name
    Package.assign(Start,I - Start);
    
    // Stash the package name
    Package.assign(Start,I - Start);

-   
+
+   // We don't want to confuse library users which can't handle MultiArch
+   if (StripMultiArch == true) {
+      size_t const found = Package.rfind(':');
+      if (found != string::npos)
+        Package = Package.substr(0,found);
+   }
+

    // Skip white space to the '('
    for (;I != Stop && isspace(*I) != 0 ; I++);
    
    // Skip white space to the '('
    for (;I != Stop && isspace(*I) != 0 ; I++);
    


@@ -480,8 +573,15 @@ const char *debListParser::ParseDepends(const char *Start,const char *Stop,
               I++;
             }
 
               I++;
             }
 

-           if (stringcmp(arch,I,End) == 0)
+           if (stringcmp(arch,I,End) == 0) {

               Found = true;
               Found = true;

+           } else {
+              std::string wildcard = SubstVar(string(I, End), "any", "*");
+              if (fnmatch(wildcard.c_str(), arch.c_str(), 0) == 0)
+                 Found = true;
+              else if (fnmatch(wildcard.c_str(), ("linux-" + arch).c_str(), 0) == 0)
+                 Found = true;
+           }

            
            if (*End++ == ']') {
               I = End;
            
            if (*End++ == ']') {
               I = End;


@@ -527,8 +627,12 @@ bool debListParser::ParseDepends(pkgCache::VerIterator Ver,
    const char *Stop;
    if (Section.Find(Tag,Start,Stop) == false)
       return true;
    const char *Stop;
    if (Section.Find(Tag,Start,Stop) == false)
       return true;

-   
+
+   static std::vector<std::string> const archs = APT::Configuration::getArchitectures();
+   static bool const multiArch = archs.size() <= 1;
+

    string Package;
    string Package;

+   string const pkgArch = Ver.Arch(true);

    string Version;
    unsigned int Op;
 
    string Version;
    unsigned int Op;
 


@@ -537,8 +641,18 @@ bool debListParser::ParseDepends(pkgCache::VerIterator Ver,
       Start = ParseDepends(Start,Stop,Package,Version,Op);
       if (Start == 0)
         return _error->Error("Problem parsing dependency %s",Tag);
       Start = ParseDepends(Start,Stop,Package,Version,Op);
       if (Start == 0)
         return _error->Error("Problem parsing dependency %s",Tag);

-      
-      if (NewDepends(Ver,Package,Version,Op,Type) == false)
+
+      if (multiArch == true &&
+         (Type == pkgCache::Dep::Conflicts ||
+          Type == pkgCache::Dep::DpkgBreaks ||
+          Type == pkgCache::Dep::Replaces))
+      {
+        for (std::vector<std::string>::const_iterator a = archs.begin();
+             a != archs.end(); ++a)
+           if (NewDepends(Ver,Package,*a,Version,Op,Type) == false)
+              return false;
+      }
+      else if (NewDepends(Ver,Package,pkgArch,Version,Op,Type) == false)

         return false;
       if (Start == Stop)
         break;
         return false;
       if (Start == Stop)
         break;


@@ -553,29 +667,52 @@ bool debListParser::ParseProvides(pkgCache::VerIterator Ver)
 {
    const char *Start;
    const char *Stop;
 {
    const char *Start;
    const char *Stop;

-   if (Section.Find("Provides",Start,Stop) == false)
-      return true;
-   
-   string Package;
-   string Version;
-   unsigned int Op;
-
-   while (1)
+   if (Section.Find("Provides",Start,Stop) == true)

    {
    {

-      Start = ParseDepends(Start,Stop,Package,Version,Op);
-      if (Start == 0)
-        return _error->Error("Problem parsing Provides line");
-      if (Op != pkgCache::Dep::NoOp) {
-        _error->Warning("Ignoring Provides line with DepCompareOp for package %s", Package.c_str());
-      } else {
-        if (NewProvides(Ver,Package,Version) == false)
-           return false;
+      string Package;
+      string Version;
+      string const Arch = Ver.Arch(true);
+      unsigned int Op;
+
+      while (1)
+      {
+        Start = ParseDepends(Start,Stop,Package,Version,Op);
+        if (Start == 0)
+           return _error->Error("Problem parsing Provides line");
+        if (Op != pkgCache::Dep::NoOp) {
+           _error->Warning("Ignoring Provides line with DepCompareOp for package %s", Package.c_str());
+        } else {
+           if (NewProvides(Ver, Package, Arch, Version) == false)
+              return false;
+        }
+
+        if (Start == Stop)
+           break;

       }
       }

+   }

 
 

-      if (Start == Stop)
-        break;
+   if (Ver->MultiArch == pkgCache::Version::Allowed)
+   {
+      string const Package = string(Ver.ParentPkg().Name()).append(":").append("any");
+      NewProvides(Ver, Package, "any", Ver.VerStr());

    }
    }

-   
+
+   if (Ver->MultiArch != pkgCache::Version::Foreign)
+      return true;
+
+   std::vector<string> const archs = APT::Configuration::getArchitectures();
+   if (archs.size() <= 1)
+      return true;
+
+   string const Package = Ver.ParentPkg().Name();
+   string const Version = Ver.VerStr();
+   for (std::vector<string>::const_iterator a = archs.begin();
+       a != archs.end(); ++a)
+   {
+      if (NewProvides(Ver, Package, *a, Version) == false)
+        return false;
+   }
+

    return true;
 }
                                                                        /*}}}*/
    return true;
 }
                                                                        /*}}}*/


@@ -606,16 +743,23 @@ bool debListParser::Step()
       /* See if this is the correct Architecture, if it isn't then we
          drop the whole section. A missing arch tag only happens (in theory)
          inside the Status file, so that is a positive return */
       /* See if this is the correct Architecture, if it isn't then we
          drop the whole section. A missing arch tag only happens (in theory)
          inside the Status file, so that is a positive return */

-      const char *Start;
-      const char *Stop;
-      if (Section.Find("Architecture",Start,Stop) == false)
+      string const Architecture = Section.FindS("Architecture");
+      if (Architecture.empty() == true)

         return true;
 
         return true;
 

-      if (stringcmp(Arch,Start,Stop) == 0)
-        return true;
+      if (Arch.empty() == true)
+      {
+        if (APT::Configuration::checkArchitecture(Architecture) == true)
+           return true;
+      }
+      else
+      {
+        if (Architecture == Arch)
+           return true;

 
 

-      if (stringcmp(Start,Stop,"all") == 0)
-        return true;
+        if (Architecture == "all")
+           return true;
+      }

 
       iOffset = Tags.Offset();
    }   
 
       iOffset = Tags.Offset();
    }   


@@ -633,8 +777,9 @@ bool debListParser::LoadReleaseInfo(pkgCache::PkgFileIterator FileI,
    if (Tags.Step(Section) == false)
       return false;
 
    if (Tags.Step(Section) == false)
       return false;
 

-   //mvo: I don't think we need to fill that in (it's unused since apt-0.6)
-   //FileI->Architecture = WriteUniqString(Arch);
+   // FIXME: Do we need it now for multi-arch?
+   // mvo: I don't think we need to fill that in (it's unused since apt-0.6)
+//    FileI->Architecture = WriteUniqString(Arch);

    
    // apt-secure does no longer download individual (per-section) Release
    // file. to provide Component pinning we use the section name now
    
    // apt-secure does no longer download individual (per-section) Release
    // file. to provide Component pinning we use the section name now