Merge remote-tracking branch 'mvo/feature/apt-show-nice' into debian/experimental-no-abi-break

Conflicts:
	apt-private/private-cmndline.cc

apt-pkg/tagfile.cc

@@ -567,52 +567,54 @@ bool TFRewrite(FILE *Output,pkgTagSection const &Tags,const char *Order[],
    }
    
    // Write all all of the tags, in order.
-   for (unsigned int I = 0; Order[I] != 0; I++)
+   if (Order != NULL)
    {
-      bool Rewritten = false;
-      
-      // See if this is a field that needs to be rewritten
-      for (unsigned int J = 0; Rewrite != 0 && Rewrite[J].Tag != 0; J++)
+      for (unsigned int I = 0; Order[I] != 0; I++)
       {
-	 if (strcasecmp(Rewrite[J].Tag,Order[I]) == 0)
-	 {
-	    Visited[J] |= 2;
-	    if (Rewrite[J].Rewrite != 0 && Rewrite[J].Rewrite[0] != 0)
-	    {
-	       if (isspace(Rewrite[J].Rewrite[0]))
-		  fprintf(Output,"%s:%s\n",Rewrite[J].NewTag,Rewrite[J].Rewrite);
-	       else
-		  fprintf(Output,"%s: %s\n",Rewrite[J].NewTag,Rewrite[J].Rewrite);
-	    }
-	    
-	    Rewritten = true;
-	    break;
-	 }
-      }      
+         bool Rewritten = false;
+         
+         // See if this is a field that needs to be rewritten
+         for (unsigned int J = 0; Rewrite != 0 && Rewrite[J].Tag != 0; J++)
+         {
+            if (strcasecmp(Rewrite[J].Tag,Order[I]) == 0)
+            {
+               Visited[J] |= 2;
+               if (Rewrite[J].Rewrite != 0 && Rewrite[J].Rewrite[0] != 0)
+               {
+                  if (isspace(Rewrite[J].Rewrite[0]))
+                     fprintf(Output,"%s:%s\n",Rewrite[J].NewTag,Rewrite[J].Rewrite);
+                  else
+                     fprintf(Output,"%s: %s\n",Rewrite[J].NewTag,Rewrite[J].Rewrite);
+               }
+               Rewritten = true;
+               break;
+            }
+         }
 	    
-      // See if it is in the fragment
-      unsigned Pos;
-      if (Tags.Find(Order[I],Pos) == false)
-	 continue;
-      Visited[Pos] |= 1;
-
-      if (Rewritten == true)
-	 continue;
+         // See if it is in the fragment
+         unsigned Pos;
+         if (Tags.Find(Order[I],Pos) == false)
+            continue;
+         Visited[Pos] |= 1;
+
+         if (Rewritten == true)
+            continue;
       
-      /* Write out this element, taking a moment to rewrite the tag
-         in case of changes of case. */
-      const char *Start;
-      const char *Stop;
-      Tags.Get(Start,Stop,Pos);
+         /* Write out this element, taking a moment to rewrite the tag
+            in case of changes of case. */
+         const char *Start;
+         const char *Stop;
+         Tags.Get(Start,Stop,Pos);
       
-      if (fputs(Order[I],Output) < 0)
-	 return _error->Errno("fputs","IO Error to output");
-      Start += strlen(Order[I]);
-      if (fwrite(Start,Stop - Start,1,Output) != 1)
-	 return _error->Errno("fwrite","IO Error to output");
-      if (Stop[-1] != '\n')
-	 fprintf(Output,"\n");
-   }   
+         if (fputs(Order[I],Output) < 0)
+            return _error->Errno("fputs","IO Error to output");
+         Start += strlen(Order[I]);
+         if (fwrite(Start,Stop - Start,1,Output) != 1)
+            return _error->Errno("fwrite","IO Error to output");
+         if (Stop[-1] != '\n')
+            fprintf(Output,"\n");
+      }
+   }
 
    // Now write all the old tags that were missed.
    for (unsigned int I = 0; I != Tags.Count(); I++)

apt-private/private-cmndline.cc

@@ -230,6 +230,10 @@ bool addArgumentsAPT(std::vector<CommandLine::Args> &Args, char const * const Cm
       addArg('v', "verbose", "APT::Cmd::List-Include-Summary", 0);
       addArg('a', "all-versions", "APT::Cmd::All-Versions", 0);
    }
+   else if (CmdMatches("show"))
+   {
+      addArg('a', "all-versions", "APT::Cache::AllVersions", 0);
+   }
    else if (addArgumentsAPTGet(Args, Cmd) || addArgumentsAPTCache(Args, Cmd))
    {
        // we have no (supported) command-name overlaps so far, so we call

apt-private/private-output.h

@@ -28,7 +28,7 @@ void ListSingleVersion(pkgCacheFile &CacheFile, pkgRecords &records,
                        bool include_summary=true);
 
 
-
+// helper to describe global state
 bool ShowList(std::ostream &out, std::string Title, std::string List,
               std::string VersionsList);
 void ShowBroken(std::ostream &out,CacheFile &Cache,bool Now);

apt-private/private-show.cc

@@ -37,6 +37,9 @@ bool DisplayRecord(pkgCacheFile &CacheFile, pkgCache::VerIterator V,
    pkgCache *Cache = CacheFile.GetPkgCache();
    if (unlikely(Cache == NULL))
       return false;
+   pkgDepCache *depCache = CacheFile.GetDepCache();
+   if (unlikely(depCache == NULL))
+      return false;
 
    // Find an appropriate file
    pkgCache::VerFileIterator Vf = V.FileList();
@@ -51,26 +54,69 @@ bool DisplayRecord(pkgCacheFile &CacheFile, pkgCache::VerIterator V,
    if (I.IsOk() == false)
       return _error->Error(_("Package file %s is out of sync."),I.FileName());
 
+   // find matching sources.list metaindex
+   pkgSourceList *SrcList = CacheFile.GetSourceList();
+   pkgIndexFile *Index;
+   if (SrcList->FindIndex(I, Index) == false &&
+       _system->FindIndex(I, Index) == false)
+      return _error->Error("Can not find indexfile for Package %s (%s)", 
+                           V.ParentPkg().Name(), V.VerStr());
+   std::string source_index_file = Index->Describe(true);
+
    // Read the record
    FileFd PkgF;
    if (PkgF.Open(I.FileName(), FileFd::ReadOnly, FileFd::Extension) == false)
       return false;
    pkgTagSection Tags;
    pkgTagFile TagF(&PkgF);
-   
+
+   if (TagF.Jump(Tags, V.FileList()->Offset) == false)
+      return _error->Error("Internal Error, Unable to parse a package record");
+
+   // make size nice
+   std::string installed_size;
+   if (Tags.FindI("Installed-Size") > 0)
+      strprintf(installed_size, "%sB", SizeToStr(Tags.FindI("Installed-Size")*1024).c_str());
+   else
+      installed_size = _("unknown");
+   std::string package_size;
+   if (Tags.FindI("Size") > 0)
+      strprintf(package_size, "%sB", SizeToStr(Tags.FindI("Size")).c_str());
+   else
+      package_size = _("unknown");
+
+   pkgDepCache::StateCache &state = (*depCache)[V.ParentPkg()];
+   bool is_installed = V.ParentPkg().CurrentVer() == V;
+   const char *manual_installed;
+   if (is_installed)
+      manual_installed = !(state.Flags & pkgCache::Flag::Auto) ? "yes" : "no";
+   else
+      manual_installed = 0;
+
+   // FIXME: add verbose that does not do the removal of the tags?
    TFRewriteData RW[] = {
+      // delete, apt-cache show has this info and most users do not care
+      {"MD5sum", 0},
+      {"SHA1", 0},
+      {"SHA256", 0},
+      {"Filename", 0},
+      {"Multi-Arch", 0},
+      {"Architecture", 0},
       {"Conffiles",0},
+      // we use the translated description
       {"Description",0},
       {"Description-md5",0},
+      // improve
+      {"Installed-Size", installed_size.c_str(), 0},
+      {"Size", package_size.c_str(), "Download-Size"},
+      // add
+      {"APT-Manual-Installed", manual_installed, 0},
+      {"APT-Sources", source_index_file.c_str(), 0},
       {}
    };
-   const char *Zero = 0;
-   if (TagF.Jump(Tags, V.FileList()->Offset) == false ||
-       TFRewrite(stdout,Tags,&Zero,RW) == false)
-   {
-      _error->Error("Internal Error, Unable to parse a package record");
-      return false;
-   }
+
+   if(TFRewrite(stdout, Tags, NULL, RW) == false)
+      return _error->Error("Internal Error, Unable to parse a package record");
 
    // write the description
    pkgRecords Recs(*Cache);
@@ -92,12 +138,20 @@ bool ShowPackage(CommandLine &CmdL)					/*{{{*/
 {
    pkgCacheFile CacheFile;
    CacheSetHelperVirtuals helper(true, GlobalError::NOTICE);
-   APT::VersionList::Version const select = APT::VersionList::CANDIDATE;
+   APT::VersionList::Version const select = _config->FindB("APT::Cache::AllVersions", false) ?
+			APT::VersionList::ALL : APT::VersionList::CANDIDATE;
    APT::VersionList const verset = APT::VersionList::FromCommandLine(CacheFile, CmdL.FileList + 1, select, helper);
    for (APT::VersionList::const_iterator Ver = verset.begin(); Ver != verset.end(); ++Ver)
       if (DisplayRecord(CacheFile, Ver, c1out) == false)
 	 return false;
 
+   if (select == APT::VersionList::CANDIDATE)
+   {
+      APT::VersionList const verset_all = APT::VersionList::FromCommandLine(CacheFile, CmdL.FileList + 1, APT::VersionList::ALL, helper);
+      if (verset_all.size() > verset.size())
+         _error->Notice(ngettext("There is %lu additional record. Please use the '-a' switch to see it", "There are %lu additional records. Please use the '-a' switch to see them.", verset_all.size() - verset.size()), verset_all.size() - verset.size());
+   }
+
    for (APT::PackageSet::const_iterator Pkg = helper.virtualPkgs.begin();
 	Pkg != helper.virtualPkgs.end(); ++Pkg)
    {

test/integration/test-apt-cli-show

@@ -10,20 +10,23 @@ configarchitecture "i386"
 DESCR='Some description 
  That has multiple lines'
 insertpackage 'unstable' 'foo' 'all' '1.0' '' '' "$DESCR"
+insertinstalledpackage 'foo' 'all' '1.0'
 
 setupaptarchive
 
 APTARCHIVE=$(readlink -f ./aptarchive)
 
 # note that we do not display Description-md5 with the "apt" cmd
+# and also show some additional fields that are calculated
 testequal "Package: foo
 Priority: optional
 Section: other
-Installed-Size: 42
+Installed-Size: 43.0 kB
 Maintainer: Joe Sixpack <joe@example.org>
-Architecture: all
 Version: 1.0
-Filename: pool/main/foo/foo_1.0_all.deb
+Download-Size: unknown
+APT-Manual-Installed: yes
+APT-Sources: file:$APTARCHIVE/ unstable/main i386 Packages
 Description: Some description 
  That has multiple lines
 " apt show foo