support Signed-By in Release files as a sort of HPKP

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

diff --git a/apt-pkg/depcache.h b/apt-pkg/depcache.h
index aa281f695c0de1699bbdf1b2f3050ceab9f513f4..03a2cb0a8230d6afdf8d42e212dddebfe96bf46b 100644 (file)
--- a/apt-pkg/depcache.h
+++ b/apt-pkg/depcache.h
@@ -209,7 +209,7 @@ class pkgDepCache : protected pkgCache::Namespace
 
    struct StateCache
    {
-      // Epoch stripped text versions of the two version fields
+      // text versions of the two version fields
       const char *CandVersion;
       const char *CurVersion;
 
@@ -240,7 +240,7 @@ class pkgDepCache : protected pkgCache::Namespace
       unsigned char DepState;          // DepState Flags
 
       // Update of candidate version
-      const char *StripEpoch(const char *Ver) APT_PURE;
+      APT_DEPRECATED_MSG("Use the method of the same name in contrib/strutl.h instead if you must") const char *StripEpoch(const char *Ver) APT_PURE;
       void Update(PkgIterator Pkg,pkgCache &Cache);
       
       // Various test members for the current status of the package
@@ -250,7 +250,7 @@ class pkgDepCache : protected pkgCache::Namespace
       inline bool Keep() const {return Mode == ModeKeep;};
       inline bool Protect() const {return (iFlags & Protected) == Protected;};
       inline bool Upgrade() const {return Status > 0 && Mode == ModeInstall;};
-      inline bool Upgradable() const {return Status >= 1;};
+      inline bool Upgradable() const {return Status >= 1 && CandidateVer != NULL;};
       inline bool Downgrade() const {return Status < 0 && Mode == ModeInstall;};
       inline bool Held() const {return Status != 0 && Keep();};
       inline bool NowBroken() const {return (DepState & DepNowMin) != DepNowMin;};
@@ -281,6 +281,7 @@ class pkgDepCache : protected pkgCache::Namespace
       virtual VerIterator GetCandidateVer(PkgIterator const &Pkg);
       virtual bool IsImportantDep(DepIterator const &Dep) const;
       virtual signed short GetPriority(PkgIterator const &Pkg);
+      virtual signed short GetPriority(VerIterator const &Ver, bool ConsiderFiles=true);
       virtual signed short GetPriority(PkgFileIterator const &File);
 
       virtual ~Policy() {};
@@ -359,14 +360,16 @@ class pkgDepCache : protected pkgCache::Namespace
 
    inline pkgCache &GetCache() {return *Cache;};
    inline pkgVersioningSystem &VS() {return *Cache->VS;};
-   
+
    // Policy implementation
-   inline VerIterator GetCandidateVer(PkgIterator const &Pkg) {return LocalPolicy->GetCandidateVer(Pkg);};
+   APT_DEPRECATED_MSG("Confusingly named method which returns the candidate as chosen by policy (NOT as chosen via .SetCandidateVersion!). You probably want to use .GetCandidateVersion instead.") inline VerIterator GetCandidateVer(PkgIterator const &Pkg) {return /* GetCandidateVersion(Pkg); but for API compat: */ LocalPolicy->GetCandidateVer(Pkg);};
+
    inline bool IsImportantDep(DepIterator Dep) const {return LocalPolicy->IsImportantDep(Dep);};
    inline Policy &GetPolicy() {return *LocalPolicy;};
    
    // Accessors
    inline StateCache &operator [](PkgIterator const &I) {return PkgState[I->ID];};
+   inline StateCache &operator [](PkgIterator const &I) const {return PkgState[I->ID];};
    inline unsigned char &operator [](DepIterator const &I) {return DepState[I->ID];};
 
    /** \return A function identifying packages in the root set other
@@ -412,6 +415,16 @@ class pkgDepCache : protected pkgCache::Namespace
    void MarkProtected(PkgIterator const &Pkg) { PkgState[Pkg->ID].iFlags |= Protected; };
 
    void SetReInstall(PkgIterator const &Pkg,bool To);
+
+   /** @return 'the' candidate version of a package
+    *
+    * The version returned is the version previously set explicitly via
+    * SetCandidate* methods like #SetCandidateVersion or if there wasn't one
+    * set the version as chosen via #Policy.
+    *
+    * @param Pkg is the package to return the candidate for
+    */
+   pkgCache::VerIterator GetCandidateVersion(pkgCache::PkgIterator const &Pkg);
    void SetCandidateVersion(VerIterator TargetVer);
    bool SetCandidateRelease(pkgCache::VerIterator TargetVer,
                                std::string const &TargetRel);