more explicit MarkRequired algorithm code

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

diff --git a/apt-private/private-show.cc b/apt-private/private-show.cc
index aaa4268c628da8a7bdfa31b2d63a05fac30cd416..03229476ec9a352c68376bcb9371d8e56cbcc817 100644 (file)
--- a/apt-private/private-show.cc
+++ b/apt-private/private-show.cc
@@ -219,6 +219,7 @@ static bool DisplayRecordV2(pkgCacheFile &CacheFile, pkgCache::VerIterator const
    RW.push_back(pkgTagSection::Tag::Remove("Description"));
    RW.push_back(pkgTagSection::Tag::Remove("Description-md5"));
    // improve
+   RW.push_back(pkgTagSection::Tag::Rewrite("Package", V.ParentPkg().FullName(true)));
    RW.push_back(pkgTagSection::Tag::Rewrite("Installed-Size", installed_size));
    RW.push_back(pkgTagSection::Tag::Remove("Size"));
    RW.push_back(pkgTagSection::Tag::Rewrite("Download-Size", package_size));
@@ -257,6 +258,8 @@ bool ShowPackage(CommandLine &CmdL)                                 /*{{{*/
    CacheSetHelperVirtuals helper(true, GlobalError::NOTICE);
    APT::CacheSetHelper::VerSelector const select = _config->FindB("APT::Cache::AllVersions", true) ?
                        APT::CacheSetHelper::ALL : APT::CacheSetHelper::CANDIDATE;
+   if (select == APT::CacheSetHelper::CANDIDATE && CacheFile.GetDepCache() == nullptr)
+      return false;
    APT::VersionList const verset = APT::VersionList::FromCommandLine(CacheFile, CmdL.FileList + 1, select, helper);
    int const ShowVersion = _config->FindI("APT::Cache::Show::Version", 1);
    for (APT::VersionList::const_iterator Ver = verset.begin(); Ver != verset.end(); ++Ver)
@@ -298,6 +301,14 @@ bool ShowPackage(CommandLine &CmdL)                                        /*{{{*/
    return true;
 }
                                                                        /*}}}*/
+static std::string Sha1FromString(std::string const &input)            /*{{{*/
+{
+   // XXX: move to hashes.h: HashString::FromString() ?
+   SHA1Summation sha1;
+   sha1.Add(input.c_str(), input.length());
+   return sha1.Result().Value();
+}
+                                                                       /*}}}*/
 bool ShowSrcPackage(CommandLine &CmdL)                                 /*{{{*/
 {
    pkgCacheFile CacheFile;
@@ -311,6 +322,8 @@ bool ShowSrcPackage(CommandLine &CmdL)                                      /*{{{*/
       return false;
 
    bool found = false;
+   // avoid showing identical records
+   std::set<std::string> seen;
    for (const char **I = CmdL.FileList + 1; *I != 0; I++)
    {
       SrcRecs.Restart();
@@ -322,9 +335,14 @@ bool ShowSrcPackage(CommandLine &CmdL)                                     /*{{{*/
         if (_config->FindB("APT::Cache::Only-Source", false) == true)
            if (Parse->Package() != *I)
               continue;
-        std::cout << Parse->AsStr() << std::endl;;
-        found = true;
-        found_this = true;
+         std::string sha1str = Sha1FromString(Parse->AsStr());
+         if (std::find(seen.begin(), seen.end(), sha1str) == seen.end())
+         {
+            std::cout << Parse->AsStr() << std::endl;;
+            found = true;
+            found_this = true;
+            seen.insert(sha1str);
+         }
       }
       if (found_this == false) {
         _error->Warning(_("Unable to locate package %s"),*I);
@@ -340,13 +358,15 @@ bool ShowSrcPackage(CommandLine &CmdL)                                    /*{{{*/
 bool Policy(CommandLine &CmdL)
 {
    pkgCacheFile CacheFile;
-   pkgCache *Cache = CacheFile.GetPkgCache();
-   pkgPolicy *Plcy = CacheFile.GetPolicy();
-   pkgSourceList *SrcList = CacheFile.GetSourceList();
-   if (unlikely(Cache == NULL || Plcy == NULL || SrcList == NULL))
+   pkgSourceList const * const SrcList = CacheFile.GetSourceList();
+   if (unlikely(SrcList == nullptr))
+      return false;
+   pkgCache * const Cache = CacheFile.GetPkgCache();
+   if (unlikely(Cache == nullptr))
+      return false;
+   pkgPolicy * const Plcy = CacheFile.GetPolicy();
+   if (unlikely(Plcy == nullptr))
       return false;
-
-   bool OldPolicy = _config->FindI("APT::Policy", 1) < 1;
 
    // Print out all of the package files
    if (CmdL.FileList[1] == 0)
@@ -378,25 +398,7 @@ bool Policy(CommandLine &CmdL)
       pkgCache::PkgIterator I = Cache->PkgBegin();
       for (;I.end() != true; ++I)
       {
-        // Old code for debugging
-        if (OldPolicy)
-        {
-           if (Plcy->GetPriority(I) == 0)
-              continue;
-
-           // Print the package name and the version we are forcing to
-           std::cout << "     " << I.FullName(true) << " -> ";
-
-           pkgCache::VerIterator V = Plcy->GetMatch(I);
-           if (V.end() == true)
-              std::cout << _("(not found)") << std::endl;
-           else
-              std::cout << V.VerStr() << std::endl;
-
-           continue;
-        }
-        // New code
-        for (pkgCache::VerIterator V = I.VersionList(); !V.end(); V++) {
+        for (pkgCache::VerIterator V = I.VersionList(); !V.end(); ++V) {
            auto Prio = Plcy->GetPriority(V, false);
            if (Prio == 0)
               continue;
@@ -440,17 +442,6 @@ bool Policy(CommandLine &CmdL)
       else
         std::cout << V.VerStr() << std::endl;
 
-      // Pinned version
-      if (OldPolicy && Plcy->GetPriority(Pkg) != 0)
-      {
-        std::cout << _("  Package pin: ");
-        V = Plcy->GetMatch(Pkg);
-        if (V.end() == true)
-           std::cout << _("(not found)") << std::endl;
-        else
-           std::cout << V.VerStr() << std::endl;
-      }
-
       // Show the priority tables
       std::cout << _("  Version table:") << std::endl;
       for (V = Pkg.VersionList(); V.end() == false; ++V)
@@ -459,10 +450,8 @@ bool Policy(CommandLine &CmdL)
            std::cout << " *** " << V.VerStr();
         else
            std::cout << "     " << V.VerStr();
-        if (_config->FindI("APT::Policy", 1) < 1)
-           std::cout << " " << Plcy->GetPriority(Pkg) << std::endl;
-        else
-           std::cout << " " << Plcy->GetPriority(V) << std::endl;
+
+        std::cout << " " << Plcy->GetPriority(V) << std::endl;
         for (pkgCache::VerFileIterator VF = V.FileList(); VF.end() == false; ++VF)
         {
            // Locate the associated index files so we can derive a description