X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/9cc83a6fbc089ccf9cb8d52ee9f380cf5df62d5c..be9b62f76406cf2546d21f3ca27587ee20e0fc37:/apt-pkg/cacheset.h diff --git a/apt-pkg/cacheset.h b/apt-pkg/cacheset.h index c9d121083..3f4f0066b 100644 --- a/apt-pkg/cacheset.h +++ b/apt-pkg/cacheset.h @@ -20,6 +20,62 @@ #include /*}}}*/ 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 { /*{{{*/ /** \class APT::PackageSet @@ -28,7 +84,7 @@ class PackageSet : public std::set { /*{{{*/ pkgCache. */ public: /*{{{*/ /** \brief smell like a pkgCache::PkgIterator */ - class const_iterator : public std::set::const_iterator { + class const_iterator : public std::set::const_iterator {/*{{{*/ public: const_iterator(std::set::const_iterator x) : std::set::const_iterator(x) {} @@ -61,10 +117,26 @@ public: /*{{{*/ }; }; // 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::insert; inline void insert(pkgCache::PkgIterator const &P) { if (P.end() == false) std::set::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 @@ -73,22 +145,33 @@ public: /*{{{*/ 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(pkgCacheFile &Cache, std::string pattern, std::ostream &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) { - std::ostream out (std::ofstream("/dev/null").rdbuf()); - return APT::PackageSet::FromRegEx(Cache, pattern, out); + 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 out stream to print various notices to */ - static APT::PackageSet FromString(pkgCacheFile &Cache, std::string const &string, std::ostream &out); + \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) { - std::ostream out (std::ofstream("/dev/null").rdbuf()); - return APT::PackageSet::FromString(Cache, string, out); + 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 @@ -97,11 +180,11 @@ 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 - \param out stream to print various notices to */ - static APT::PackageSet FromCommandLine(pkgCacheFile &Cache, const char **cmdline, std::ostream &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) { - std::ostream out (std::ofstream("/dev/null").rdbuf()); - return APT::PackageSet::FromCommandLine(Cache, cmdline, out); + CacheSetHelper helper; + return APT::PackageSet::FromCommandLine(Cache, cmdline, helper); } struct Modifier { @@ -112,18 +195,38 @@ public: /*{{{*/ 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 GroupedFromCommandLine( pkgCacheFile &Cache, const char **cmdline, std::list const &mods, - unsigned short const &fallback, std::ostream &out); + unsigned short const &fallback, CacheSetHelper &helper); static std::map GroupedFromCommandLine( pkgCacheFile &Cache, const char **cmdline, std::list const &mods, unsigned short const &fallback) { - std::ostream out (std::ofstream("/dev/null").rdbuf()); + CacheSetHelper helper; return APT::PackageSet::GroupedFromCommandLine(Cache, cmdline, - mods, fallback, out); + 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 { /*{{{*/ @@ -134,7 +237,7 @@ class VersionSet : public std::set { /*{{{*/ pkgCache. */ public: /*{{{*/ /** \brief smell like a pkgCache::VerIterator */ - class const_iterator : public std::set::const_iterator { + class const_iterator : public std::set::const_iterator {/*{{{*/ public: const_iterator(std::set::const_iterator x) : std::set::const_iterator(x) {} @@ -168,11 +271,13 @@ public: /*{{{*/ 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 typename APT::VersionSet::const_iterator iterator; + typedef APT::VersionSet::const_iterator iterator; using std::set::insert; inline void insert(pkgCache::VerIterator const &V) { if (V.end() == false) std::set::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 { @@ -198,41 +303,86 @@ public: /*{{{*/ 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 out stream to print various notices to */ + \param helper responsible for error and message handling */ static APT::VersionSet FromCommandLine(pkgCacheFile &Cache, const char **cmdline, - APT::VersionSet::Version const &fallback, std::ostream &out); + APT::VersionSet::Version const &fallback, CacheSetHelper &helper); static APT::VersionSet FromCommandLine(pkgCacheFile &Cache, const char **cmdline, APT::VersionSet::Version const &fallback) { - std::ostream out (std::ofstream("/dev/null").rdbuf()); - return APT::VersionSet::FromCommandLine(Cache, cmdline, fallback, out); + 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 GroupedFromCommandLine( + pkgCacheFile &Cache, const char **cmdline, + std::list const &mods, + unsigned short const &fallback, CacheSetHelper &helper); + static std::map GroupedFromCommandLine( + pkgCacheFile &Cache, const char **cmdline, + std::list 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 - \param AllowError add an error to the stack if not */ + \param Pkg we want the candidate version from this package */ static pkgCache::VerIterator getCandidateVer(pkgCacheFile &Cache, - pkgCache::PkgIterator const &Pkg, bool const &AllowError = false); + 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 - \param AllowError add an error to the stack if not */ + \param Pkg we want the installed version from this package */ static pkgCache::VerIterator getInstalledVer(pkgCacheFile &Cache, - pkgCache::PkgIterator const &Pkg, bool const &AllowError = false); - - - static bool AddSelectedVersion(pkgCacheFile &Cache, VersionSet &verset, - pkgCache::PkgIterator const &P, VersionSet::Version const &fallback, - bool const &AllowError = false); - + pkgCache::PkgIterator const &Pkg, CacheSetHelper &helper); /*}}}*/ }; /*}}}*/ }