apt-pkg/cachefilter.cc

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 /** \file cachefilter.h
   4     Collection of functor classes */
   5                                                                         /*}}}*/
   6 // Include Files                                                        /*{{{*/
   7 #include <config.h>
   8
   9 #include <apt-pkg/cachefile.h>
  10 #include <apt-pkg/cachefilter.h>
  11 #include <apt-pkg/error.h>
  12 #include <apt-pkg/pkgcache.h>
  13 #include <apt-pkg/cacheiterators.h>
  14 #include <apt-pkg/strutl.h>
  15 #include <apt-pkg/macros.h>
  16
  17 #include <string>
  18 #include <string.h>
  19 #include <regex.h>
  20 #include <fnmatch.h>
  21
  22 #include <apti18n.h>
  23                                                                         /*}}}*/
  24 namespace APT {
  25 namespace CacheFilter {
  26 APT_CONST Matcher::~Matcher() {}
  27 APT_CONST PackageMatcher::~PackageMatcher() {}
  28
  29 // Name matches RegEx                                                   /*{{{*/
  30 PackageNameMatchesRegEx::PackageNameMatchesRegEx(std::string const &Pattern) {
  31         pattern = new regex_t;
  32         int const Res = regcomp(pattern, Pattern.c_str(), REG_EXTENDED | REG_ICASE | REG_NOSUB);
  33         if (Res == 0)
  34                 return;
  35
  36         delete pattern;
  37         pattern = NULL;
  38         char Error[300];
  39         regerror(Res, pattern, Error, sizeof(Error));
  40         _error->Error(_("Regex compilation error - %s"), Error);
  41 }
  42 bool PackageNameMatchesRegEx::operator() (pkgCache::PkgIterator const &Pkg) {
  43         if (unlikely(pattern == NULL))
  44                 return false;
  45         else
  46                 return regexec(pattern, Pkg.Name(), 0, 0, 0) == 0;
  47 }
  48 bool PackageNameMatchesRegEx::operator() (pkgCache::GrpIterator const &Grp) {
  49         if (unlikely(pattern == NULL))
  50                 return false;
  51         else
  52                 return regexec(pattern, Grp.Name(), 0, 0, 0) == 0;
  53 }
  54 PackageNameMatchesRegEx::~PackageNameMatchesRegEx() {
  55         if (pattern == NULL)
  56                 return;
  57         regfree(pattern);
  58         delete pattern;
  59 }
  60                                                                         /*}}}*/
  61 // Name matches Fnmatch                                                 /*{{{*/
  62 PackageNameMatchesFnmatch::PackageNameMatchesFnmatch(std::string const &Pattern) :
  63    Pattern(Pattern) {}
  64 bool PackageNameMatchesFnmatch::operator() (pkgCache::PkgIterator const &Pkg) {
  65    return fnmatch(Pattern.c_str(), Pkg.Name(), FNM_CASEFOLD) == 0;
  66 }
  67 bool PackageNameMatchesFnmatch::operator() (pkgCache::GrpIterator const &Grp) {
  68    return fnmatch(Pattern.c_str(), Grp.Name(), FNM_CASEFOLD) == 0;
  69 }
  70                                                                         /*}}}*/
  71 // Architecture matches <kernel>-<cpu> specification                    /*{{{*/
  72 //----------------------------------------------------------------------
  73 /* The complete architecture, consisting of <kernel>-<cpu>. */
  74 static std::string CompleteArch(std::string const &arch) {
  75         if (arch.find('-') != std::string::npos) {
  76                 // ensure that only -any- is replaced and not something like company-
  77                 std::string complete = std::string("-").append(arch).append("-");
  78                 complete = SubstVar(complete, "-any-", "-*-");
  79                 complete = complete.substr(1, complete.size()-2);
  80                 return complete;
  81         }
  82         else if (arch == "any")                 return "*-*";
  83         else                                    return "linux-" + arch;
  84 }
  85 PackageArchitectureMatchesSpecification::PackageArchitectureMatchesSpecification(std::string const &pattern, bool const isPattern) :
  86                                         literal(pattern), complete(CompleteArch(pattern)), isPattern(isPattern) {
  87 }
  88 bool PackageArchitectureMatchesSpecification::operator() (char const * const &arch) {
  89         if (strcmp(literal.c_str(), arch) == 0 ||
  90             strcmp(complete.c_str(), arch) == 0)
  91                 return true;
  92         std::string const pkgarch = CompleteArch(arch);
  93         if (isPattern == true)
  94                 return fnmatch(complete.c_str(), pkgarch.c_str(), 0) == 0;
  95         return fnmatch(pkgarch.c_str(), complete.c_str(), 0) == 0;
  96 }
  97 bool PackageArchitectureMatchesSpecification::operator() (pkgCache::PkgIterator const &Pkg) {
  98         return (*this)(Pkg.Arch());
  99 }
 100 PackageArchitectureMatchesSpecification::~PackageArchitectureMatchesSpecification() {
 101 }
 102                                                                         /*}}}*/
 103 // Package is new install                                               /*{{{*/
 104 PackageIsNewInstall::PackageIsNewInstall(pkgCacheFile * const Cache) : Cache(Cache) {}
 105 APT_PURE bool PackageIsNewInstall::operator() (pkgCache::PkgIterator const &Pkg) {
 106    return (*Cache)[Pkg].NewInstall();
 107 }
 108 PackageIsNewInstall::~PackageIsNewInstall() {}
 109                                                                         /*}}}*/
 110 // Generica like True, False, NOT, AND, OR                              /*{{{*/
 111 APT_CONST bool TrueMatcher::operator() (pkgCache::PkgIterator const &) { return true; }
 112 APT_CONST bool TrueMatcher::operator() (pkgCache::GrpIterator const &) { return true; }
 113 APT_CONST bool TrueMatcher::operator() (pkgCache::VerIterator const &) { return true; }
 114
 115 APT_CONST bool FalseMatcher::operator() (pkgCache::PkgIterator const &) { return false; }
 116 APT_CONST bool FalseMatcher::operator() (pkgCache::GrpIterator const &) { return false; }
 117 APT_CONST bool FalseMatcher::operator() (pkgCache::VerIterator const &) { return false; }
 118
 119 NOTMatcher::NOTMatcher(Matcher * const matcher) : matcher(matcher) {}
 120 bool NOTMatcher::operator() (pkgCache::PkgIterator const &Pkg) { return ! (*matcher)(Pkg); }
 121 bool NOTMatcher::operator() (pkgCache::GrpIterator const &Grp) { return ! (*matcher)(Grp); }
 122 bool NOTMatcher::operator() (pkgCache::VerIterator const &Ver) { return ! (*matcher)(Ver); }
 123 NOTMatcher::~NOTMatcher() { delete matcher; }
 124
 125 ANDMatcher::ANDMatcher() {}
 126 ANDMatcher::ANDMatcher(Matcher * const matcher1) {
 127    AND(matcher1);
 128 }
 129 ANDMatcher::ANDMatcher(Matcher * const matcher1, Matcher * const matcher2) {
 130    AND(matcher1).AND(matcher2);
 131 }
 132 ANDMatcher::ANDMatcher(Matcher * const matcher1, Matcher * const matcher2, Matcher * const matcher3) {
 133    AND(matcher1).AND(matcher2).AND(matcher3);
 134 }
 135 ANDMatcher::ANDMatcher(Matcher * const matcher1, Matcher * const matcher2, Matcher * const matcher3, Matcher * const matcher4) {
 136    AND(matcher1).AND(matcher2).AND(matcher3).AND(matcher4);
 137 }
 138 ANDMatcher::ANDMatcher(Matcher * const matcher1, Matcher * const matcher2, Matcher * const matcher3, Matcher * const matcher4, Matcher * const matcher5) {
 139    AND(matcher1).AND(matcher2).AND(matcher3).AND(matcher4).AND(matcher5);
 140 }
 141 ANDMatcher& ANDMatcher::AND(Matcher * const matcher) { matchers.push_back(matcher); return *this; }
 142 bool ANDMatcher::operator() (pkgCache::PkgIterator const &Pkg) {
 143    for (std::vector<Matcher *>::const_iterator M = matchers.begin(); M != matchers.end(); ++M)
 144       if ((**M)(Pkg) == false)
 145          return false;
 146    return true;
 147 }
 148 bool ANDMatcher::operator() (pkgCache::GrpIterator const &Grp) {
 149    for (std::vector<Matcher *>::const_iterator M = matchers.begin(); M != matchers.end(); ++M)
 150       if ((**M)(Grp) == false)
 151          return false;
 152    return true;
 153 }
 154 bool ANDMatcher::operator() (pkgCache::VerIterator const &Ver) {
 155    for (std::vector<Matcher *>::const_iterator M = matchers.begin(); M != matchers.end(); ++M)
 156       if ((**M)(Ver) == false)
 157          return false;
 158    return true;
 159 }
 160 ANDMatcher::~ANDMatcher() {
 161    for (std::vector<Matcher *>::iterator M = matchers.begin(); M != matchers.end(); ++M)
 162       delete *M;
 163 }
 164
 165 ORMatcher::ORMatcher() {}
 166 ORMatcher::ORMatcher(Matcher * const matcher1) {
 167    OR(matcher1);
 168 }
 169 ORMatcher::ORMatcher(Matcher * const matcher1, Matcher * const matcher2) {
 170    OR(matcher1).OR(matcher2);
 171 }
 172 ORMatcher::ORMatcher(Matcher * const matcher1, Matcher * const matcher2, Matcher * const matcher3) {
 173    OR(matcher1).OR(matcher2).OR(matcher3);
 174 }
 175 ORMatcher::ORMatcher(Matcher * const matcher1, Matcher * const matcher2, Matcher * const matcher3, Matcher * const matcher4) {
 176    OR(matcher1).OR(matcher2).OR(matcher3).OR(matcher4);
 177 }
 178 ORMatcher::ORMatcher(Matcher * const matcher1, Matcher * const matcher2, Matcher * const matcher3, Matcher * const matcher4, Matcher * const matcher5) {
 179    OR(matcher1).OR(matcher2).OR(matcher3).OR(matcher4).OR(matcher5);
 180 }
 181 ORMatcher& ORMatcher::OR(Matcher * const matcher) { matchers.push_back(matcher); return *this; }
 182 bool ORMatcher::operator() (pkgCache::PkgIterator const &Pkg) {
 183    for (std::vector<Matcher *>::const_iterator M = matchers.begin(); M != matchers.end(); ++M)
 184       if ((**M)(Pkg) == true)
 185          return true;
 186    return false;
 187 }
 188 bool ORMatcher::operator() (pkgCache::GrpIterator const &Grp) {
 189    for (std::vector<Matcher *>::const_iterator M = matchers.begin(); M != matchers.end(); ++M)
 190       if ((**M)(Grp) == true)
 191          return true;
 192    return false;
 193 }
 194 bool ORMatcher::operator() (pkgCache::VerIterator const &Ver) {
 195    for (std::vector<Matcher *>::const_iterator M = matchers.begin(); M != matchers.end(); ++M)
 196       if ((**M)(Ver) == true)
 197          return true;
 198    return false;
 199 }
 200 ORMatcher::~ORMatcher() {
 201    for (std::vector<Matcher *>::iterator M = matchers.begin(); M != matchers.end(); ++M)
 202       delete *M;
 203 }
 204                                                                         /*}}}*/
 205
 206 }
 207 }