add options to disable specific checksums for Indexes

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

diff --git a/apt-pkg/cacheset.h b/apt-pkg/cacheset.h
index 7c05face69dbeab1f5366847405ade8a3148a7e3..3f4f0066b42ddbf5a2cce352aa11331533e99794 100644 (file)
--- a/apt-pkg/cacheset.h
+++ b/apt-pkg/cacheset.h
@@ -11,21 +11,80 @@
 // Include Files                                                       /*{{{*/
 #include <iostream>
 #include <fstream>
 // Include Files                                                       /*{{{*/
 #include <iostream>
 #include <fstream>

+#include <list>
+#include <map>

 #include <set>
 #include <string>
 
 #include <set>
 #include <string>
 

+#include <apt-pkg/cachefile.h>

 #include <apt-pkg/pkgcache.h>
                                                                        /*}}}*/
 namespace APT {
 #include <apt-pkg/pkgcache.h>
                                                                        /*}}}*/
 namespace APT {

+class PackageSet;
+class VersionSet;
+class CacheSetHelper {                                                 /*{{{*/
+/** \class APT::CacheSetHelper
+    Simple base class with a lot of virtual methods which can be overridden
+    to alter the behavior or the output of the CacheSets.
+
+    This helper is passed around by the static methods in the CacheSets and
+    used every time they hit an error condition or something could be
+    printed out.
+*/
+public:                                                                        /*{{{*/
+       CacheSetHelper(bool const &ShowError = true,
+               GlobalError::MsgType ErrorType = GlobalError::ERROR) :
+                       ShowError(ShowError), ErrorType(ErrorType) {};
+       virtual ~CacheSetHelper() {};
+
+       virtual void showTaskSelection(PackageSet const &pkgset, string const &pattern) {};
+       virtual void showRegExSelection(PackageSet const &pkgset, string const &pattern) {};
+       virtual void showSelectedVersion(pkgCache::PkgIterator const &Pkg, pkgCache::VerIterator const Ver,
+                                string const &ver, bool const &verIsRel) {};
+
+       virtual pkgCache::PkgIterator canNotFindPkgName(pkgCacheFile &Cache, std::string const &str);
+       virtual PackageSet canNotFindTask(pkgCacheFile &Cache, std::string pattern);
+       virtual PackageSet canNotFindRegEx(pkgCacheFile &Cache, std::string pattern);
+       virtual PackageSet canNotFindPackage(pkgCacheFile &Cache, std::string const &str);
+       virtual VersionSet canNotFindAllVer(pkgCacheFile &Cache, pkgCache::PkgIterator const &Pkg);
+       virtual VersionSet canNotFindInstCandVer(pkgCacheFile &Cache,
+                               pkgCache::PkgIterator const &Pkg);
+       virtual VersionSet canNotFindCandInstVer(pkgCacheFile &Cache,
+                               pkgCache::PkgIterator const &Pkg);
+       virtual pkgCache::VerIterator canNotFindNewestVer(pkgCacheFile &Cache,
+                               pkgCache::PkgIterator const &Pkg);
+       virtual pkgCache::VerIterator canNotFindCandidateVer(pkgCacheFile &Cache,
+                               pkgCache::PkgIterator const &Pkg);
+       virtual pkgCache::VerIterator canNotFindInstalledVer(pkgCacheFile &Cache,
+                               pkgCache::PkgIterator const &Pkg);
+
+       bool showErrors() const { return ShowError; };
+       bool showErrors(bool const &newValue) { if (ShowError == newValue) return ShowError; else return ((ShowError = newValue) == false); };
+       GlobalError::MsgType errorType() const { return ErrorType; };
+       GlobalError::MsgType errorType(GlobalError::MsgType const &newValue)
+       {
+               if (ErrorType == newValue) return ErrorType;
+               else {
+                       GlobalError::MsgType const &oldValue = ErrorType;
+                       ErrorType = newValue;
+                       return oldValue;
+               }
+       };
+
+                                                                       /*}}}*/
+protected:
+       bool ShowError;
+       GlobalError::MsgType ErrorType;
+};                                                                     /*}}}*/
+class PackageSet : public std::set<pkgCache::PkgIterator> {            /*{{{*/

 /** \class APT::PackageSet
 
     Simple wrapper around a std::set to provide a similar interface to
     a set of packages as to the complete set of all packages in the
     pkgCache. */
 /** \class APT::PackageSet
 
     Simple wrapper around a std::set to provide a similar interface to
     a set of packages as to the complete set of all packages in the
     pkgCache. */

-class PackageSet : public std::set<pkgCache::PkgIterator> {            /*{{{*/

 public:                                                                        /*{{{*/
        /** \brief smell like a pkgCache::PkgIterator */
 public:                                                                        /*{{{*/
        /** \brief smell like a pkgCache::PkgIterator */

-       class const_iterator : public std::set<pkgCache::PkgIterator>::const_iterator {
+       class const_iterator : public std::set<pkgCache::PkgIterator>::const_iterator {/*{{{*/

        public:
                const_iterator(std::set<pkgCache::PkgIterator>::const_iterator x) :
                         std::set<pkgCache::PkgIterator>::const_iterator(x) {}
        public:
                const_iterator(std::set<pkgCache::PkgIterator>::const_iterator x) :
                         std::set<pkgCache::PkgIterator>::const_iterator(x) {}


@@ -58,7 +117,26 @@ public:                                                                     /*{{{*/
                };
        };
        // 103. set::iterator is required to be modifiable, but this allows modification of keys
                };
        };
        // 103. set::iterator is required to be modifiable, but this allows modification of keys

-       typedef typename APT::PackageSet::const_iterator iterator;
+       typedef APT::PackageSet::const_iterator iterator;
+                                                                       /*}}}*/
+
+       using std::set<pkgCache::PkgIterator>::insert;
+       inline void insert(pkgCache::PkgIterator const &P) { if (P.end() == false) std::set<pkgCache::PkgIterator>::insert(P); };
+       inline void insert(PackageSet const &pkgset) { insert(pkgset.begin(), pkgset.end()); };
+
+       /** \brief returns all packages in the cache who belong to the given task
+
+           A simple helper responsible for search for all members of a task
+           in the cache. Optional it prints a a notice about the
+           packages chosen cause of the given task.
+           \param Cache the packages are in
+           \param pattern name of the task
+           \param helper responsible for error and message handling */
+       static APT::PackageSet FromTask(pkgCacheFile &Cache, std::string pattern, CacheSetHelper &helper);
+       static APT::PackageSet FromTask(pkgCacheFile &Cache, std::string const &pattern) {
+               CacheSetHelper helper;
+               return APT::PackageSet::FromTask(Cache, pattern, helper);
+       }

 
        /** \brief returns all packages in the cache whose name matchs a given pattern
 
 
        /** \brief returns all packages in the cache whose name matchs a given pattern
 


@@ -67,11 +145,33 @@ public:                                                                    /*{{{*/
            packages chosen cause of the given package.
            \param Cache the packages are in
            \param pattern regular expression for package names
            packages chosen cause of the given package.
            \param Cache the packages are in
            \param pattern regular expression for package names

-           \param out stream to print the notice to */
-       static APT::PackageSet FromRegEx(pkgCache &Cache, std::string pattern, std::ostream &out);
-       static APT::PackageSet FromRegEx(pkgCache &Cache, std::string const &pattern) {
-               std::ostream out (std::ofstream("/dev/null").rdbuf());
-               return APT::PackageSet::FromRegEx(Cache, pattern, out);
+           \param helper responsible for error and message handling */
+       static APT::PackageSet FromRegEx(pkgCacheFile &Cache, std::string pattern, CacheSetHelper &helper);
+       static APT::PackageSet FromRegEx(pkgCacheFile &Cache, std::string const &pattern) {
+               CacheSetHelper helper;
+               return APT::PackageSet::FromRegEx(Cache, pattern, helper);
+       }
+
+       /** \brief returns all packages specified by a string
+
+           \param Cache the packages are in
+           \param string String the package name(s) should be extracted from
+           \param helper responsible for error and message handling */
+       static APT::PackageSet FromString(pkgCacheFile &Cache, std::string const &string, CacheSetHelper &helper);
+       static APT::PackageSet FromString(pkgCacheFile &Cache, std::string const &string) {
+               CacheSetHelper helper;
+               return APT::PackageSet::FromString(Cache, string, helper);
+       }
+
+       /** \brief returns a package specified by a string
+
+           \param Cache the package is in
+           \param string String the package name should be extracted from
+           \param helper responsible for error and message handling */
+       static pkgCache::PkgIterator FromName(pkgCacheFile &Cache, std::string const &string, CacheSetHelper &helper);
+       static pkgCache::PkgIterator FromName(pkgCacheFile &Cache, std::string const &string) {
+               CacheSetHelper helper;
+               return APT::PackageSet::FromName(Cache, string, helper);

        }
 
        /** \brief returns all packages specified on the commandline
        }
 
        /** \brief returns all packages specified on the commandline


@@ -80,17 +180,210 @@ public:                                                                   /*{{{*/
            No special package command is supported, just plain names.
            \param Cache the packages are in
            \param cmdline Command line the package names should be extracted from
            No special package command is supported, just plain names.
            \param Cache the packages are in
            \param cmdline Command line the package names should be extracted from

-           \param out stream to print various notices to */
-       static APT::PackageSet FromCommandLine(pkgCache &Cache, const char **cmdline, std::ostream &out);
-       static APT::PackageSet FromCommandLine(pkgCache &Cache, const char **cmdline) {
-               std::ostream out (std::ofstream("/dev/null").rdbuf());
-               return APT::PackageSet::FromCommandLine(Cache, cmdline, out);
+           \param helper responsible for error and message handling */
+       static APT::PackageSet FromCommandLine(pkgCacheFile &Cache, const char **cmdline, CacheSetHelper &helper);
+       static APT::PackageSet FromCommandLine(pkgCacheFile &Cache, const char **cmdline) {
+               CacheSetHelper helper;
+               return APT::PackageSet::FromCommandLine(Cache, cmdline, helper);

        }
 
        }
 

+       struct Modifier {
+               enum Position { NONE, PREFIX, POSTFIX };
+               unsigned short ID;
+               const char * const Alias;
+               Position Pos;
+               Modifier (unsigned short const &id, const char * const alias, Position const &pos) : ID(id), Alias(alias), Pos(pos) {};
+       };
+
+       /** \brief group packages by a action modifiers
+
+           At some point it is needed to get from the same commandline
+           different package sets grouped by a modifier. Take
+               apt-get install apt awesome-
+           as an example.
+           \param Cache the packages are in
+           \param cmdline Command line the package names should be extracted from
+           \param mods list of modifiers the method should accept
+           \param fallback the default modifier group for a package
+           \param helper responsible for error and message handling */
+       static std::map<unsigned short, PackageSet> GroupedFromCommandLine(
+               pkgCacheFile &Cache, const char **cmdline,
+               std::list<PackageSet::Modifier> const &mods,
+               unsigned short const &fallback, CacheSetHelper &helper);
+       static std::map<unsigned short, PackageSet> GroupedFromCommandLine(
+               pkgCacheFile &Cache, const char **cmdline,
+               std::list<PackageSet::Modifier> const &mods,
+               unsigned short const &fallback) {
+               CacheSetHelper helper;
+               return APT::PackageSet::GroupedFromCommandLine(Cache, cmdline,
+                               mods, fallback, helper);
+       }

 
 

+       enum Constructor { UNKNOWN, REGEX, TASK };
+       Constructor getConstructor() const { return ConstructedBy; };

 
 

+       PackageSet() : ConstructedBy(UNKNOWN) {};
+       PackageSet(Constructor const &by) : ConstructedBy(by) {};
+                                                                       /*}}}*/
+private:                                                               /*{{{*/
+       Constructor ConstructedBy;

                                                                        /*}}}*/
                                                                        /*}}}*/

-};
+};                                                                     /*}}}*/
+class VersionSet : public std::set<pkgCache::VerIterator> {            /*{{{*/
+/** \class APT::VersionSet
+
+    Simple wrapper around a std::set to provide a similar interface to
+    a set of versions as to the complete set of all versions in the
+    pkgCache. */
+public:                                                                        /*{{{*/
+       /** \brief smell like a pkgCache::VerIterator */
+       class const_iterator : public std::set<pkgCache::VerIterator>::const_iterator {/*{{{*/
+       public:
+               const_iterator(std::set<pkgCache::VerIterator>::const_iterator x) :
+                        std::set<pkgCache::VerIterator>::const_iterator(x) {}
+
+               operator pkgCache::VerIterator(void) { return **this; }
+
+               inline pkgCache *Cache() const { return (**this).Cache(); };
+               inline unsigned long Index() const {return (**this).Index();};
+               // we have only valid iterators here
+               inline bool end() const { return false; };
+
+               inline pkgCache::Version const * operator->() const {
+                       return &***this;
+               };
+
+               inline int CompareVer(const pkgCache::VerIterator &B) const { return (**this).CompareVer(B); };
+               inline const char *VerStr() const { return (**this).VerStr(); };
+               inline const char *Section() const { return (**this).Section(); };
+               inline const char *Arch() const { return (**this).Arch(); };
+               inline const char *Arch(bool const pseudo) const { return (**this).Arch(pseudo); };
+               inline pkgCache::PkgIterator ParentPkg() const { return (**this).ParentPkg(); };
+               inline pkgCache::DescIterator DescriptionList() const { return (**this).DescriptionList(); };
+               inline pkgCache::DescIterator TranslatedDescription() const { return (**this).TranslatedDescription(); };
+               inline pkgCache::DepIterator DependsList() const { return (**this).DependsList(); };
+               inline pkgCache::PrvIterator ProvidesList() const { return (**this).ProvidesList(); };
+               inline pkgCache::VerFileIterator FileList() const { return (**this).FileList(); };
+               inline bool Downloadable() const { return (**this).Downloadable(); };
+               inline const char *PriorityType() const { return (**this).PriorityType(); };
+               inline string RelStr() const { return (**this).RelStr(); };
+               inline bool Automatic() const { return (**this).Automatic(); };
+               inline bool Pseudo() const { return (**this).Pseudo(); };
+               inline pkgCache::VerFileIterator NewestFile() const { return (**this).NewestFile(); };
+       };
+                                                                       /*}}}*/
+       // 103. set::iterator is required to be modifiable, but this allows modification of keys
+       typedef APT::VersionSet::const_iterator iterator;
+
+       using std::set<pkgCache::VerIterator>::insert;
+       inline void insert(pkgCache::VerIterator const &V) { if (V.end() == false) std::set<pkgCache::VerIterator>::insert(V); };
+       inline void insert(VersionSet const &verset) { insert(verset.begin(), verset.end()); };
+
+       /** \brief specifies which version(s) will be returned if non is given */
+       enum Version {
+               /** All versions */
+               ALL,
+               /** Candidate and installed version */
+               CANDANDINST,
+               /** Candidate version */
+               CANDIDATE,
+               /** Installed version */
+               INSTALLED,
+               /** Candidate or if non installed version */
+               CANDINST,
+               /** Installed or if non candidate version */
+               INSTCAND,
+               /** Newest version */
+               NEWEST
+       };
+
+       /** \brief returns all versions specified on the commandline
+
+           Get all versions from the commandline, uses given default version if
+           non specifically requested  and executes regex's if needed on names.
+           \param Cache the packages and versions are in
+           \param cmdline Command line the versions should be extracted from
+           \param helper responsible for error and message handling */
+       static APT::VersionSet FromCommandLine(pkgCacheFile &Cache, const char **cmdline,
+                       APT::VersionSet::Version const &fallback, CacheSetHelper &helper);
+       static APT::VersionSet FromCommandLine(pkgCacheFile &Cache, const char **cmdline,
+                       APT::VersionSet::Version const &fallback) {
+               CacheSetHelper helper;
+               return APT::VersionSet::FromCommandLine(Cache, cmdline, fallback, helper);
+       }
+       static APT::VersionSet FromCommandLine(pkgCacheFile &Cache, const char **cmdline) {
+               return APT::VersionSet::FromCommandLine(Cache, cmdline, CANDINST);
+       }
+
+       static APT::VersionSet FromString(pkgCacheFile &Cache, std::string pkg,
+                       APT::VersionSet::Version const &fallback, CacheSetHelper &helper,
+                       bool const &onlyFromName = false);
+       static APT::VersionSet FromString(pkgCacheFile &Cache, std::string pkg,
+                       APT::VersionSet::Version const &fallback) {
+               CacheSetHelper helper;
+               return APT::VersionSet::FromString(Cache, pkg, fallback, helper);
+       }
+       static APT::VersionSet FromString(pkgCacheFile &Cache, std::string pkg) {
+               return APT::VersionSet::FromString(Cache, pkg, CANDINST);
+       }
+
+       /** \brief returns all versions specified for the package
+
+           \param Cache the package and versions are in
+           \param P the package in question
+           \param fallback the version(s) you want to get
+           \param helper the helper used for display and error handling */
+       static APT::VersionSet FromPackage(pkgCacheFile &Cache, pkgCache::PkgIterator const &P,
+               VersionSet::Version const &fallback, CacheSetHelper &helper);
+       static APT::VersionSet FromPackage(pkgCacheFile &Cache, pkgCache::PkgIterator const &P,
+                       APT::VersionSet::Version const &fallback) {
+               CacheSetHelper helper;
+               return APT::VersionSet::FromPackage(Cache, P, fallback, helper);
+       }
+       static APT::VersionSet FromPackage(pkgCacheFile &Cache, pkgCache::PkgIterator const &P) {
+               return APT::VersionSet::FromPackage(Cache, P, CANDINST);
+       }
+
+       struct Modifier {
+               enum Position { NONE, PREFIX, POSTFIX };
+               unsigned short ID;
+               const char * const Alias;
+               Position Pos;
+               VersionSet::Version SelectVersion;
+               Modifier (unsigned short const &id, const char * const alias, Position const &pos,
+                         VersionSet::Version const &select) : ID(id), Alias(alias), Pos(pos),
+                        SelectVersion(select) {};
+       };
+
+       static std::map<unsigned short, VersionSet> GroupedFromCommandLine(
+               pkgCacheFile &Cache, const char **cmdline,
+               std::list<VersionSet::Modifier> const &mods,
+               unsigned short const &fallback, CacheSetHelper &helper);
+       static std::map<unsigned short, VersionSet> GroupedFromCommandLine(
+               pkgCacheFile &Cache, const char **cmdline,
+               std::list<VersionSet::Modifier> const &mods,
+               unsigned short const &fallback) {
+               CacheSetHelper helper;
+               return APT::VersionSet::GroupedFromCommandLine(Cache, cmdline,
+                               mods, fallback, helper);
+       }
+                                                                       /*}}}*/
+protected:                                                             /*{{{*/
+
+       /** \brief returns the candidate version of the package
+
+           \param Cache to be used to query for information
+           \param Pkg we want the candidate version from this package */
+       static pkgCache::VerIterator getCandidateVer(pkgCacheFile &Cache,
+               pkgCache::PkgIterator const &Pkg, CacheSetHelper &helper);
+
+       /** \brief returns the installed version of the package
+
+           \param Cache to be used to query for information
+           \param Pkg we want the installed version from this package */
+       static pkgCache::VerIterator getInstalledVer(pkgCacheFile &Cache,
+               pkgCache::PkgIterator const &Pkg, CacheSetHelper &helper);

                                                                        /*}}}*/
                                                                        /*}}}*/

+};                                                                     /*}}}*/

 }
 #endif
 }
 #endif