]> git.saurik.com Git - apt.git/blobdiff - apt-pkg/pkgcache.cc
Removed some debug stuff, corrected the VerifyConfigure calls to VerifyAndConfigure
[apt.git] / apt-pkg / pkgcache.cc
index 8af8ef7de596d967314dc973b8cbb29fe3b27980..38e4e904ed41133ae2feb07b9bdd94fad8584354 100644 (file)
@@ -111,7 +111,10 @@ bool pkgCache::Header::CheckSizes(Header &Against) const
 /* */
 pkgCache::pkgCache(MMap *Map, bool DoMap) : Map(*Map)
 {
-   MultiArchEnabled = APT::Configuration::getArchitectures().size() > 1;
+   // call getArchitectures() with cached=false to ensure that the 
+   // architectures cache is re-evaulated. this is needed in cases
+   // when the APT::Architecture field changes between two cache creations
+   MultiArchEnabled = APT::Configuration::getArchitectures(false).size() > 1;
    if (DoMap == true)
       ReMap();
 }
@@ -208,12 +211,18 @@ pkgCache::PkgIterator pkgCache::SingleArchFindPkg(const string &Name)
 // ---------------------------------------------------------------------
 /* Returns 0 on error, pointer to the package otherwise */
 pkgCache::PkgIterator pkgCache::FindPkg(const string &Name) {
-       if (MultiArchCache() == false)
-               return SingleArchFindPkg(Name);
        size_t const found = Name.find(':');
        if (found == string::npos)
-               return FindPkg(Name, "native");
+       {
+               if (MultiArchCache() == false)
+                       return SingleArchFindPkg(Name);
+               else
+                       return FindPkg(Name, "native");
+       }
        string const Arch = Name.substr(found+1);
+       /* Beware: This is specialcased to handle pkg:any in dependencies as
+          these are linked to virtual pkg:any named packages with all archs.
+          If you want any arch from a given pkg, use FindPkg(pkg,arch) */
        if (Arch == "any")
                return FindPkg(Name, "any");
        return FindPkg(Name.substr(0, found), Arch);
@@ -225,7 +234,7 @@ pkgCache::PkgIterator pkgCache::FindPkg(const string &Name) {
 pkgCache::PkgIterator pkgCache::FindPkg(const string &Name, string const &Arch) {
        if (MultiArchCache() == false) {
                if (Arch == "native" || Arch == "all" || Arch == "any" ||
-                   Arch == _config->Find("APT::Architecture"))
+                   Arch == NativeArch())
                        return SingleArchFindPkg(Name);
                else
                        return PkgIterator(*this,0);
@@ -314,22 +323,22 @@ pkgCache::PkgIterator pkgCache::GrpIterator::FindPkg(string Arch) const {
        if (unlikely(IsGood() == false || S->FirstPackage == 0))
                return PkgIterator(*Owner, 0);
 
-       static string const myArch = _config->Find("APT::Architecture");
+       /* If we accept any package we simply return the "first"
+          package in this group (the last one added). */
+       if (Arch == "any")
+               return PkgIterator(*Owner, Owner->PkgP + S->FirstPackage);
+
+       char const* const myArch = Owner->NativeArch();
        /* Most of the time the package for our native architecture is
           the one we add at first to the cache, but this would be the
           last one we check, so we do it now. */
-       if (Arch == "native" || Arch == myArch) {
-               Arch = myArch;
+       if (Arch == "native" || Arch == myArch || Arch == "all") {
                pkgCache::Package *Pkg = Owner->PkgP + S->LastPackage;
-               if (stringcasecmp(Arch, Owner->StrP + Pkg->Arch) == 0)
+               if (strcasecmp(myArch, Owner->StrP + Pkg->Arch) == 0)
                        return PkgIterator(*Owner, Pkg);
+               Arch = myArch;
        }
 
-       /* If we accept any package we simply return the "first"
-          package in this group (the last one added). */
-       if (Arch == "any")
-               return PkgIterator(*Owner, Owner->PkgP + S->FirstPackage);
-
        /* Iterate over the list to find the matching arch
           unfortunately this list includes "package noise"
           (= different packages with same calculated hash),
@@ -349,19 +358,21 @@ pkgCache::PkgIterator pkgCache::GrpIterator::FindPkg(string Arch) const {
 // GrpIterator::FindPreferredPkg - Locate the "best" package           /*{{{*/
 // ---------------------------------------------------------------------
 /* Returns an End-Pointer on error, pointer to the package otherwise */
-pkgCache::PkgIterator pkgCache::GrpIterator::FindPreferredPkg() const {
+pkgCache::PkgIterator pkgCache::GrpIterator::FindPreferredPkg(bool const &PreferNonVirtual) const {
        pkgCache::PkgIterator Pkg = FindPkg("native");
-       if (Pkg.end() == false)
+       if (Pkg.end() == false && (PreferNonVirtual == false || Pkg->VersionList != 0))
                return Pkg;
 
        std::vector<std::string> const archs = APT::Configuration::getArchitectures();
        for (std::vector<std::string>::const_iterator a = archs.begin();
             a != archs.end(); ++a) {
                Pkg = FindPkg(*a);
-               if (Pkg.end() == false)
+               if (Pkg.end() == false && (PreferNonVirtual == false || Pkg->VersionList != 0))
                        return Pkg;
        }
 
+       if (PreferNonVirtual == true)
+               return FindPreferredPkg(false);
        return PkgIterator(*Owner, 0);
 }
                                                                        /*}}}*/
@@ -498,7 +509,8 @@ std::string pkgCache::PkgIterator::FullName(bool const &Pretty) const
 {
    string fullname = Name();
    if (Pretty == false ||
-       (strcmp(Arch(), "all") != 0 && _config->Find("APT::Architecture") != Arch()))
+       (strcmp(Arch(), "all") != 0 &&
+       strcmp(Owner->NativeArch(), Arch()) != 0))
       return fullname.append(":").append(Arch());
    return fullname;
 }
@@ -509,15 +521,24 @@ std::string pkgCache::PkgIterator::FullName(bool const &Pretty) const
    conflicts (including dpkg's Breaks fields). */
 bool pkgCache::DepIterator::IsCritical() const
 {
-   if (S->Type == pkgCache::Dep::Conflicts ||
-       S->Type == pkgCache::Dep::DpkgBreaks ||
-       S->Type == pkgCache::Dep::Obsoletes ||
+   if (IsNegative() == true ||
        S->Type == pkgCache::Dep::Depends ||
        S->Type == pkgCache::Dep::PreDepends)
       return true;
    return false;
 }
                                                                        /*}}}*/
+// DepIterator::IsNegative - Returns true if the dep is a negative one /*{{{*/
+// ---------------------------------------------------------------------
+/* Some dependencies are positive like Depends and Recommends, others
+   are negative like Conflicts which can and should be handled differently */
+bool pkgCache::DepIterator::IsNegative() const
+{
+   return S->Type == Dep::DpkgBreaks ||
+         S->Type == Dep::Conflicts ||
+         S->Type == Dep::Obsoletes;
+}
+                                                                       /*}}}*/
 // DepIterator::SmartTargetPkg - Resolve dep target pointers w/provides        /*{{{*/
 // ---------------------------------------------------------------------
 /* This intellegently looks at dep target packages and tries to figure
@@ -595,9 +616,7 @@ pkgCache::Version **pkgCache::DepIterator::AllTargets() const
         if (Owner->VS->CheckDep(I.VerStr(),S->CompareOp,TargetVer()) == false)
            continue;
 
-        if ((S->Type == pkgCache::Dep::Conflicts ||
-             S->Type == pkgCache::Dep::DpkgBreaks ||
-             S->Type == pkgCache::Dep::Obsoletes) &&
+        if (IsNegative() == true &&
             ParentPkg() == I.ParentPkg())
            continue;
         
@@ -612,9 +631,7 @@ pkgCache::Version **pkgCache::DepIterator::AllTargets() const
         if (Owner->VS->CheckDep(I.ProvideVersion(),S->CompareOp,TargetVer()) == false)
            continue;
         
-        if ((S->Type == pkgCache::Dep::Conflicts ||
-             S->Type == pkgCache::Dep::DpkgBreaks ||
-             S->Type == pkgCache::Dep::Obsoletes) &&
+        if (IsNegative() == true &&
             ParentPkg() == I.OwnerPkg())
            continue;
         
@@ -659,6 +676,30 @@ void pkgCache::DepIterator::GlobOr(DepIterator &Start,DepIterator &End)
    }
 }
                                                                        /*}}}*/
+// ostream operator to handle string representation of a dependecy     /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+std::ostream& operator<<(ostream& out, pkgCache::DepIterator D)
+{
+   if (D.end() == true)
+      return out << "invalid dependency";
+
+   pkgCache::PkgIterator P = D.ParentPkg();
+   pkgCache::PkgIterator T = D.TargetPkg();
+
+   out << (P.end() ? "invalid pkg" : P.FullName(false)) << " " << D.DepType()
+       << " on ";
+   if (T.end() == true)
+      out << "invalid pkg";
+   else
+      out << T;
+
+   if (D->Version != 0)
+      out << " (" << D.CompType() << " " << D.TargetVer() << ")";
+
+   return out;
+}
+                                                                       /*}}}*/
 // VerIterator::CompareVer - Fast version compare for same pkgs                /*{{{*/
 // ---------------------------------------------------------------------
 /* This just looks over the version list to see if B is listed before A. In
@@ -702,27 +743,14 @@ bool pkgCache::VerIterator::Automatic() const
 {
    VerFileIterator Files = FileList();
    for (; Files.end() == false; Files++)
+      // Do not check ButAutomaticUpgrades here as it is kind of automatic…
       if ((Files.File()->Flags & pkgCache::Flag::NotAutomatic) != pkgCache::Flag::NotAutomatic)
         return true;
    return false;
 }
                                                                        /*}}}*/
-// VerIterator::Pseudo - Check if this version is a pseudo one         /*{{{*/
-// ---------------------------------------------------------------------
-/* Sometimes you have the need to express dependencies with versions
-   which doesn't really exist or exist multiply times for "different"
-   packages. We need these versions for dependency resolution but they
-   are a problem everytime we need to download/install something. */
-bool pkgCache::VerIterator::Pseudo() const
-{
-   if (S->MultiArch == pkgCache::Version::All &&
-          strcmp(Arch(true),"all") != 0)
-   {
-          GrpIterator const Grp = ParentPkg().Group();
-          return (Grp->LastPackage != Grp->FirstPackage);
-   }
-   return false;
-}
+// VerIterator::Pseudo - deprecated no-op method                       /*{{{*/
+bool pkgCache::VerIterator::Pseudo() const { return false; }
                                                                        /*}}}*/
 // VerIterator::NewestFile - Return the newest file version relation   /*{{{*/
 // ---------------------------------------------------------------------
@@ -861,17 +889,19 @@ pkgCache::DescIterator pkgCache::VerIterator::TranslatedDescription() const
    for (std::vector<string>::const_iterator l = lang.begin();
        l != lang.end(); l++)
    {
-      pkgCache::DescIterator DescDefault = DescriptionList();
-      pkgCache::DescIterator Desc = DescDefault;
-
-      for (; Desc.end() == false; Desc++)
-        if (*l == Desc.LanguageCode())
+      pkgCache::DescIterator Desc = DescriptionList();
+      for (; Desc.end() == false; ++Desc)
+        if (*l == Desc.LanguageCode() ||
+            (*l == "en" && strcmp(Desc.LanguageCode(),"") == 0))
            break;
-      if (Desc.end() == true) 
-        Desc = DescDefault;
+      if (Desc.end() == true)
+        continue;
       return Desc;
    }
-
+   for (pkgCache::DescIterator Desc = DescriptionList();
+       Desc.end() == false; ++Desc)
+      if (strcmp(Desc.LanguageCode(), "") == 0)
+        return Desc;
    return DescriptionList();
 };