X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/d4489d4983d5b9840bb2882a088dd1f363a280b9..af7a92c35accda98b667ff41f62ea500fca95a7c:/apt-pkg/pkgcache.cc

diff --git a/apt-pkg/pkgcache.cc b/apt-pkg/pkgcache.cc
index 30bb41470..616d400a2 100644
--- a/apt-pkg/pkgcache.cc
+++ b/apt-pkg/pkgcache.cc
@@ -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();
 }
@@ -119,7 +122,7 @@ pkgCache::pkgCache(MMap *Map, bool DoMap) : Map(*Map)
 // Cache::ReMap - Reopen the cache file					/*{{{*/
 // ---------------------------------------------------------------------
 /* If the file is already closed then this will open it open it. */
-bool pkgCache::ReMap()
+bool pkgCache::ReMap(bool const &Errorchecks)
 {
    // Apply the typecasts.
    HeaderP = (Header *)Map.Data();
@@ -135,6 +138,9 @@ bool pkgCache::ReMap()
    StringItemP = (StringItem *)Map.Data();
    StrP = (char *)Map.Data();
 
+   if (Errorchecks == false)
+      return true;
+
    if (Map.Size() == 0 || HeaderP == 0)
       return _error->Error(_("Empty package cache"));
    
@@ -307,7 +313,7 @@ const char *pkgCache::Priority(unsigned char Prio)
 // GrpIterator::FindPkg - Locate a package by arch			/*{{{*/
 // ---------------------------------------------------------------------
 /* Returns an End-Pointer on error, pointer to the package otherwise */
-pkgCache::PkgIterator pkgCache::GrpIterator::FindPkg(string Arch) {
+pkgCache::PkgIterator pkgCache::GrpIterator::FindPkg(string Arch) const {
 	if (unlikely(IsGood() == false || S->FirstPackage == 0))
 		return PkgIterator(*Owner, 0);
 
@@ -346,19 +352,21 @@ pkgCache::PkgIterator pkgCache::GrpIterator::FindPkg(string Arch) {
 // GrpIterator::FindPreferredPkg - Locate the "best" package		/*{{{*/
 // ---------------------------------------------------------------------
 /* Returns an End-Pointer on error, pointer to the package otherwise */
-pkgCache::PkgIterator pkgCache::GrpIterator::FindPreferredPkg() {
+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);
 }
 									/*}}}*/
@@ -367,7 +375,7 @@ pkgCache::PkgIterator pkgCache::GrpIterator::FindPreferredPkg() {
 /* Returns an End-Pointer on error, pointer to the package otherwise.
    We can't simply ++ to the next as the next package of the last will
    be from a different group (with the same hash value) */
-pkgCache::PkgIterator pkgCache::GrpIterator::NextPkg(pkgCache::PkgIterator const &LastPkg) {
+pkgCache::PkgIterator pkgCache::GrpIterator::NextPkg(pkgCache::PkgIterator const &LastPkg) const {
 	if (unlikely(IsGood() == false || S->FirstPackage == 0 ||
 	    LastPkg.end() == true))
 		return PkgIterator(*Owner, 0);
@@ -504,7 +512,7 @@ std::string pkgCache::PkgIterator::FullName(bool const &Pretty) const
 // ---------------------------------------------------------------------
 /* Currently critical deps are defined as depends, predepends and
    conflicts (including dpkg's Breaks fields). */
-bool pkgCache::DepIterator::IsCritical()
+bool pkgCache::DepIterator::IsCritical() const
 {
    if (S->Type == pkgCache::Dep::Conflicts ||
        S->Type == pkgCache::Dep::DpkgBreaks ||
@@ -528,7 +536,7 @@ bool pkgCache::DepIterator::IsCritical()
    In Conjunction with the DepCache the value of Result may not be 
    super-good since the policy may have made it uninstallable. Using
    AllTargets is better in this case. */
-bool pkgCache::DepIterator::SmartTargetPkg(PkgIterator &Result)
+bool pkgCache::DepIterator::SmartTargetPkg(PkgIterator &Result) const
 {
    Result = TargetPkg();
    
@@ -577,7 +585,7 @@ bool pkgCache::DepIterator::SmartTargetPkg(PkgIterator &Result)
    provides. It includes every possible package-version that could satisfy
    the dependency. The last item in the list has a 0. The resulting pointer
    must be delete [] 'd */
-pkgCache::Version **pkgCache::DepIterator::AllTargets()
+pkgCache::Version **pkgCache::DepIterator::AllTargets() const
 {
    Version **Res = 0;
    unsigned long Size =0;
@@ -656,6 +664,30 @@ 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
@@ -699,6 +731,7 @@ 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;
@@ -858,17 +891,19 @@ 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();
 };