various simple changes to fix cppcheck warnings

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

diff --git a/apt-pkg/policy.cc b/apt-pkg/policy.cc
index be96d4c844574c93756568b83e086e71058e2dec..4ae3b5f8705bea5fa1f2cee782af327e16b9b106 100644 (file)
--- a/apt-pkg/policy.cc
+++ b/apt-pkg/policy.cc
@@ -23,18 +23,21 @@
    ##################################################################### */
                                                                        /*}}}*/
 // Include Files                                                       /*{{{*/
+#include<config.h>
+
 #include <apt-pkg/policy.h>
 #include <apt-pkg/configuration.h>
+#include <apt-pkg/cachefilter.h>
 #include <apt-pkg/tagfile.h>
 #include <apt-pkg/strutl.h>
 #include <apt-pkg/fileutl.h>
 #include <apt-pkg/error.h>
 #include <apt-pkg/sptr.h>
 
-#include <apti18n.h>
-
 #include <iostream>
 #include <sstream>
+
+#include <apti18n.h>
                                                                        /*}}}*/
 
 using namespace std;
@@ -56,8 +59,23 @@ pkgPolicy::pkgPolicy(pkgCache *Owner) : Pins(0), PFPriority(0), Cache(Owner)
    // The config file has a master override.
    string DefRel = _config->Find("APT::Default-Release");
    if (DefRel.empty() == false)
-      CreatePin(pkgVersionMatch::Release,"",DefRel,990);
-      
+   {
+      bool found = false;
+      // FIXME: make ExpressionMatches static to use it here easily
+      pkgVersionMatch vm("", pkgVersionMatch::None);
+      for (pkgCache::PkgFileIterator F = Cache->FileBegin(); F != Cache->FileEnd(); ++F)
+      {
+        if ((F->Archive != 0 && vm.ExpressionMatches(DefRel, F.Archive()) == true) ||
+            (F->Codename != 0 && vm.ExpressionMatches(DefRel, F.Codename()) == true) ||
+            (F->Version != 0 && vm.ExpressionMatches(DefRel, F.Version()) == true) ||
+            (DefRel.length() > 2 && DefRel[1] == '='))
+           found = true;
+      }
+      if (found == false)
+        _error->Error(_("The value '%s' is invalid for APT::Default-Release as such a release is not available in the sources"), DefRel.c_str());
+      else
+        CreatePin(pkgVersionMatch::Release,"",DefRel,990);
+   }
    InitDefaults();
 }
                                                                        /*}}}*/
@@ -67,7 +85,7 @@ pkgPolicy::pkgPolicy(pkgCache *Owner) : Pins(0), PFPriority(0), Cache(Owner)
 bool pkgPolicy::InitDefaults()
 {   
    // Initialize the priorities based on the status of the package file
-   for (pkgCache::PkgFileIterator I = Cache->FileBegin(); I != Cache->FileEnd(); I++)
+   for (pkgCache::PkgFileIterator I = Cache->FileBegin(); I != Cache->FileEnd(); ++I)
    {
       PFPriority[I->ID] = 500;
       if ((I->Flags & pkgCache::Flag::NotSource) == pkgCache::Flag::NotSource)
@@ -84,10 +102,10 @@ bool pkgPolicy::InitDefaults()
    signed Cur = 989;
    StatusOverride = false;
    for (vector<Pin>::const_iterator I = Defaults.begin(); I != Defaults.end();
-       I++, Cur--)
+       ++I, --Cur)
    {
       pkgVersionMatch Match(I->Data,I->Type);
-      for (pkgCache::PkgFileIterator F = Cache->FileBegin(); F != Cache->FileEnd(); F++)
+      for (pkgCache::PkgFileIterator F = Cache->FileBegin(); F != Cache->FileEnd(); ++F)
       {
         if (Match.FileMatch(F) == true && Fixed[F->ID] == false)
         {
@@ -108,7 +126,7 @@ bool pkgPolicy::InitDefaults()
    }
 
    if (_config->FindB("Debug::pkgPolicy",false) == true)
-      for (pkgCache::PkgFileIterator F = Cache->FileBegin(); F != Cache->FileEnd(); F++)
+      for (pkgCache::PkgFileIterator F = Cache->FileBegin(); F != Cache->FileEnd(); ++F)
         std::clog << "Prio of " << F.FileName() << ' ' << PFPriority[F->ID] << std::endl; 
    
    return true;   
@@ -148,12 +166,12 @@ pkgCache::VerIterator pkgPolicy::GetCandidateVer(pkgCache::PkgIterator const &Pk
       tracks the default when the default is taken away, and a permanent
       pin that stays at that setting.
     */
-   for (pkgCache::VerIterator Ver = Pkg.VersionList(); Ver.end() == false; Ver++)
+   for (pkgCache::VerIterator Ver = Pkg.VersionList(); Ver.end() == false; ++Ver)
    {
       /* Lets see if this version is the installed version */
       bool instVer = (Pkg.CurrentVer() == Ver);
 
-      for (pkgCache::VerFileIterator VF = Ver.FileList(); VF.end() == false; VF++)
+      for (pkgCache::VerFileIterator VF = Ver.FileList(); VF.end() == false; ++VF)
       {
         /* If this is the status file, and the current version is not the
            version in the status file (ie it is not installed, or somesuch)
@@ -242,17 +260,33 @@ void pkgPolicy::CreatePin(pkgVersionMatch::MatchType Type,string Name,
    }
 
    // find the package (group) this pin applies to
-   pkgCache::GrpIterator Grp;
-   pkgCache::PkgIterator Pkg;
-   if (Arch.empty() == false)
-      Pkg = Cache->FindPkg(Name, Arch);
-   else {
-      Grp = Cache->FindGrp(Name);
-      if (Grp.end() == false)
-        Pkg = Grp.PackageList();
+   pkgCache::GrpIterator Grp = Cache->FindGrp(Name);
+   bool matched = false;
+   if (Grp.end() == false)
+   {
+      std::string MatchingArch;
+      if (Arch.empty() == true)
+        MatchingArch = Cache->NativeArch();
+      else
+        MatchingArch = Arch;
+      APT::CacheFilter::PackageArchitectureMatchesSpecification pams(MatchingArch);
+      for (pkgCache::PkgIterator Pkg = Grp.PackageList(); Pkg.end() != true; Pkg = Grp.NextPkg(Pkg))
+      {
+        if (pams(Pkg.Arch()) == false)
+           continue;
+        Pin *P = Pins + Pkg->ID;
+        // the first specific stanza for a package is the ruler,
+        // all others need to be ignored
+        if (P->Type != pkgVersionMatch::None)
+           P = &*Unmatched.insert(Unmatched.end(),PkgPin(Pkg.FullName()));
+        P->Type = Type;
+        P->Priority = Priority;
+        P->Data = Data;
+        matched = true;
+      }
    }
 
-   if (Pkg.end() == true)
+   if (matched == false)
    {
       PkgPin *P = &*Unmatched.insert(Unmatched.end(),PkgPin(Name));
       if (Arch.empty() == false)
@@ -262,20 +296,6 @@ void pkgPolicy::CreatePin(pkgVersionMatch::MatchType Type,string Name,
       P->Data = Data;
       return;
    }
-
-   for (; Pkg.end() != true; Pkg = Grp.NextPkg(Pkg))
-   {
-      Pin *P = Pins + Pkg->ID;
-      // the first specific stanza for a package is the ruler,
-      // all others need to be ignored
-      if (P->Type != pkgVersionMatch::None)
-        P = &*Unmatched.insert(Unmatched.end(),PkgPin(Pkg.FullName()));
-      P->Type = Type;
-      P->Priority = Priority;
-      P->Data = Data;
-      if (Grp.end() == true)
-        break;
-   }
 }
                                                                        /*}}}*/
 // Policy::GetMatch - Get the matching version for a package pin       /*{{{*/
@@ -346,7 +366,7 @@ bool ReadPinDir(pkgPolicy &Plcy,string Dir)
    vector<string> const List = GetListOfFilesInDir(Dir, "pref", true, true);
 
    // Read the files
-   for (vector<string>::const_iterator I = List.begin(); I != List.end(); I++)
+   for (vector<string>::const_iterator I = List.begin(); I != List.end(); ++I)
       if (ReadPinFile(Plcy, *I) == false)
         return false;
    return true;