Move sysconf(_SC_OPEN_MAX); out of the for() loop to avoid unneeded syscalls

[apt.git] / apt-private / private-search.cc

diff --git a/apt-private/private-search.cc b/apt-private/private-search.cc
index ecd5d7fadd9492ed11fa91091fbb9b614549d240..6bce9ffa4a3143254bf77be6113ada18f4406bf2 100644 (file)
--- a/apt-private/private-search.cc
+++ b/apt-private/private-search.cc
@@ -32,61 +32,95 @@ bool FullTextSearch(CommandLine &CmdL)                                      /*{{{*/
    pkgCacheFile CacheFile;
    pkgCache *Cache = CacheFile.GetPkgCache();
    pkgDepCache::Policy *Plcy = CacheFile.GetPolicy();
-   pkgRecords records(CacheFile);
    if (unlikely(Cache == NULL || Plcy == NULL))
       return false;
 
-   const char **patterns;
-   patterns = CmdL.FileList + 1;
+   // Make sure there is at least one argument
+   unsigned int const NumPatterns = CmdL.FileSize() -1;
+   if (NumPatterns < 1)
+      return _error->Error(_("You must give at least one search pattern"));
+
+#define APT_FREE_PATTERNS() for (std::vector<regex_t>::iterator P = Patterns.begin(); \
+      P != Patterns.end(); ++P) { regfree(&(*P)); }
+
+   // Compile the regex pattern
+   std::vector<regex_t> Patterns;
+   for (unsigned int I = 0; I != NumPatterns; ++I)
+   {
+      regex_t pattern;
+      if (regcomp(&pattern, CmdL.FileList[I + 1], REG_EXTENDED | REG_ICASE | REG_NOSUB) != 0)
+      {
+        APT_FREE_PATTERNS();
+        return _error->Error("Regex compilation error");
+      }
+      Patterns.push_back(pattern);
+   }
+
+   bool const NamesOnly = _config->FindB("APT::Cache::NamesOnly", false);
 
    std::map<std::string, std::string> output_map;
-   std::map<std::string, std::string>::const_iterator K;
 
    LocalitySortedVersionSet bag;
    OpTextProgress progress(*_config);
    progress.OverallProgress(0, 100, 50,  _("Sorting"));
-   GetLocalitySortedVersionSet(CacheFile, bag, progress);
+   GetLocalitySortedVersionSet(CacheFile, &bag, &progress);
    LocalitySortedVersionSet::iterator V = bag.begin();
 
    progress.OverallProgress(50, 100, 50,  _("Full Text Search"));
    progress.SubProgress(bag.size());
+   pkgRecords records(CacheFile);
+
+   std::string format = "${color:highlight}${Package}${color:neutral}/${Origin} ${Version} ${Architecture}${ }${apt:Status}\n";
+   if (_config->FindB("APT::Cache::ShowFull",false) == false)
+      format += "  ${Description}\n";
+   else
+      format += "  ${LongDescription}\n";
+
    int Done = 0;
+   std::vector<bool> PkgsDone(Cache->Head().PackageCount, false);
    for ( ;V != bag.end(); ++V)
    {
       if (Done%500 == 0)
          progress.Progress(Done);
       ++Done;
-      
-      int i;
+
+      // we want to list each package only once
+      pkgCache::PkgIterator const P = V.ParentPkg();
+      if (PkgsDone[P->ID] == true)
+        continue;
+
+      char const * const PkgName = P.Name();
       pkgCache::DescIterator Desc = V.TranslatedDescription();
       pkgRecords::Parser &parser = records.Lookup(Desc.FileList());
-     
+      std::string const LongDesc = parser.LongDesc();
+
       bool all_found = true;
-      for(i=0; patterns[i] != NULL; ++i)
+      for (std::vector<regex_t>::const_iterator pattern = Patterns.begin();
+           pattern != Patterns.end(); ++pattern)
       {
-         // FIXME: use regexp instead of simple find()
-         const char *pattern = patterns[i];
-         all_found &=  (
-            strstr(V.ParentPkg().Name(), pattern) != NULL ||
-            strcasestr(parser.ShortDesc().c_str(), pattern) != NULL ||
-            strcasestr(parser.LongDesc().c_str(), pattern) != NULL);
-         // search patterns are AND by default so we can skip looking further
-         // on the first mismatch
-         if(all_found == false)
-            break;
+        if (regexec(&(*pattern), PkgName, 0, 0, 0) == 0)
+           continue;
+        else if (NamesOnly == false && regexec(&(*pattern), LongDesc.c_str(), 0, 0, 0) == 0)
+           continue;
+        // search patterns are AND, so one failing fails all
+        all_found = false;
+        break;
       }
-      if (all_found)
+      if (all_found == true)
       {
-            std::stringstream outs;
-            ListSingleVersion(CacheFile, records, V, outs);
-            output_map.insert(std::make_pair<std::string, std::string>(
-                                 V.ParentPkg().Name(), outs.str()));
+        PkgsDone[P->ID] = true;
+        std::stringstream outs;
+        ListSingleVersion(CacheFile, records, V, outs, format);
+        output_map.insert(std::make_pair<std::string, std::string>(
+                 PkgName, outs.str()));
       }
    }
+   APT_FREE_PATTERNS();
    progress.Done();
 
    // FIXME: SORT! and make sorting flexible (alphabetic, by pkg status)
    // output the sorted map
+   std::map<std::string, std::string>::const_iterator K;
    for (K = output_map.begin(); K != output_map.end(); ++K)
       std::cout << (*K).second << std::endl;