let TimeRFC1123 return an empty string if gmtime() fails

[apt.git] / apt-pkg / depcache.h

diff --git a/apt-pkg/depcache.h b/apt-pkg/depcache.h
index c6f245a8094c1d5de4fd06cda6f0f14af3c3d62d..750da3d6f1cb9db717a57882881626fc495d6a01 100644 (file)
--- a/apt-pkg/depcache.h
+++ b/apt-pkg/depcache.h
@@ -38,11 +38,10 @@
 #ifndef PKGLIB_DEPCACHE_H
 #define PKGLIB_DEPCACHE_H
 
-
+#include <apt-pkg/configuration.h>
 #include <apt-pkg/pkgcache.h>
 #include <apt-pkg/progress.h>
-
-#include <regex.h>
+#include <apt-pkg/error.h>
 
 #include <vector>
 #include <memory>
@@ -120,7 +119,7 @@ class pkgDepCache : protected pkgCache::Namespace
                        DepCandPolicy = (1 << 4), DepCandMin = (1 << 5)};
    
    // These flags are used in StateCache::iFlags
-   enum InternalFlags {AutoKept = (1 << 0), Purge = (1 << 1), ReInstall = (1 << 2)};
+   enum InternalFlags {AutoKept = (1 << 0), Purge = (1 << 1), ReInstall = (1 << 2), Protected = (1 << 3)};
       
    enum VersionTypes {NowVersion, InstallVersion, CandidateVersion};
    enum ModeList {ModeDelete = 0, ModeKeep = 1, ModeInstall = 2};
@@ -184,22 +183,13 @@ class pkgDepCache : protected pkgCache::Namespace
    /** \brief Returns \b true for packages matching a regular
     *  expression in APT::NeverAutoRemove.
     */
-   class DefaultRootSetFunc : public InRootSetFunc
+   class DefaultRootSetFunc : public InRootSetFunc, public Configuration::MatchAgainstConfig
    {
-     std::vector<regex_t *> rootSetRegexp;
-     bool constructedSuccessfully;
-
    public:
-     DefaultRootSetFunc();
-     ~DefaultRootSetFunc();
+     DefaultRootSetFunc() : Configuration::MatchAgainstConfig("APT::NeverAutoRemove") {};
+     virtual ~DefaultRootSetFunc() {};
 
-     /** \return \b true if the class initialized successfully, \b
-      *  false otherwise.  Used to avoid throwing an exception, since
-      *  APT classes generally don't.
-      */
-     bool wasConstructedSuccessfully() const { return constructedSuccessfully; }
-
-     bool InRootSet(const pkgCache::PkgIterator &pkg);
+     bool InRootSet(const pkgCache::PkgIterator &pkg) { return pkg.end() == false && Match(pkg.Name()); };
    };
 
    struct StateCache
@@ -266,8 +256,8 @@ class pkgDepCache : protected pkgCache::Namespace
    {
       public:
       
-      virtual VerIterator GetCandidateVer(PkgIterator Pkg);
-      virtual bool IsImportantDep(DepIterator Dep);
+      virtual VerIterator GetCandidateVer(PkgIterator const &Pkg);
+      virtual bool IsImportantDep(DepIterator const &Dep);
       
       virtual ~Policy() {};
    };
@@ -344,7 +334,7 @@ class pkgDepCache : protected pkgCache::Namespace
    inline pkgVersioningSystem &VS() {return *Cache->VS;};
    
    // Policy implementation
-   inline VerIterator GetCandidateVer(PkgIterator Pkg) {return LocalPolicy->GetCandidateVer(Pkg);};
+   inline VerIterator GetCandidateVer(PkgIterator const &Pkg) {return LocalPolicy->GetCandidateVer(Pkg);};
    inline bool IsImportantDep(DepIterator Dep) {return LocalPolicy->IsImportantDep(Dep);};
    inline Policy &GetPolicy() {return *LocalPolicy;};
    
@@ -403,9 +393,30 @@ class pkgDepCache : protected pkgCache::Namespace
    void MarkInstall(PkgIterator const &Pkg,bool AutoInst = true,
                    unsigned long Depth = 0, bool FromUser = true,
                    bool ForceImportantDeps = false);
+   void MarkProtected(PkgIterator const &Pkg) { PkgState[Pkg->ID].iFlags |= Protected; };
 
    void SetReInstall(PkgIterator const &Pkg,bool To);
-   void SetCandidateVersion(VerIterator TargetVer);
+   // FIXME: Remove the unused boolean parameter on abi break
+   void SetCandidateVersion(VerIterator TargetVer, bool const &Pseudo = true);
+   bool SetCandidateRelease(pkgCache::VerIterator TargetVer,
+                               std::string const &TargetRel);
+   /** Set the candidate version for dependencies too if needed.
+    *
+    *  Sets not only the candidate version as SetCandidateVersion does,
+    *  but walks also down the dependency tree and checks if it is required
+    *  to set the candidate of the dependency to a version from the given
+    *  release, too.
+    *
+    *  \param TargetVer new candidate version of the package
+    *  \param TargetRel try to switch to this release if needed
+    *  \param[out] Changed a list of pairs consisting of the \b old
+    *              version of the changed package and the version which
+    *              required the switch of this dependency
+    *  \return \b true if the switch was successful, \b false otherwise
+    */
+   bool SetCandidateRelease(pkgCache::VerIterator TargetVer,
+                           std::string const &TargetRel,
+                           std::list<std::pair<pkgCache::VerIterator, pkgCache::VerIterator> > &Changed);
 
    /** Set the "is automatically installed" flag of Pkg. */
    void MarkAuto(const PkgIterator &Pkg, bool Auto);
@@ -472,9 +483,14 @@ class pkgDepCache : protected pkgCache::Namespace
 
    private:
    // Helper for Update(OpProgress) to remove pseudoinstalled arch all packages
-   bool RemovePseudoInstalledPkg(PkgIterator &Pkg, std::set<unsigned long> &recheck);
-   bool ReInstallPseudoForGroup(unsigned long const &Grp, std::set<unsigned long> &recheck);
-   bool ReInstallPseudoForGroup(pkgCache::PkgIterator const &P, std::set<unsigned long> &recheck);
+   // FIXME: they are private so shouldn't affect abi, but just in case…
+   __deprecated bool RemovePseudoInstalledPkg(PkgIterator &Pkg, std::set<unsigned long> &recheck) { return true; };
+   __deprecated bool ReInstallPseudoForGroup(unsigned long const &Grp, std::set<unsigned long> &recheck) { return true; };
+   __deprecated bool ReInstallPseudoForGroup(pkgCache::PkgIterator const &P, std::set<unsigned long> &recheck) { return true; };
+
+
+   bool IsModeChangeOk(ModeList const mode, PkgIterator const &Pkg,
+                       unsigned long const Depth, bool const FromUser);
 };
 
 #endif