]> git.saurik.com Git - apt.git/blobdiff - cmdline/apt-get.cc
* Silence the essential packages check if we are only d...
[apt.git] / cmdline / apt-get.cc
index 857e8aa3f15816160233406250e2f1d8ecf2f32b..75d375453928526787af418573d9a9aae56ea082 100644 (file)
@@ -1,6 +1,6 @@
 // -*- mode: cpp; mode: fold -*-
 // Description                                                         /*{{{*/
-// $Id: apt-get.cc,v 1.123 2002/11/09 20:50:30 doogie Exp $
+// $Id: apt-get.cc,v 1.131 2003/07/22 01:49:26 mdz Exp $
 /* ######################################################################
    
    apt-get - Cover for dpkg
@@ -150,29 +150,59 @@ bool AnalPrompt(const char *Text)
 // ---------------------------------------------------------------------
 /* This prints out a string of space separated words with a title and 
    a two space indent line wraped to the current screen width. */
-bool ShowList(ostream &out,string Title,string List)
+bool ShowList(ostream &out,string Title,string List,string VersionsList)
 {
    if (List.empty() == true)
       return true;
+   // trim trailing space
+   int NonSpace = List.find_last_not_of(' ');
+   if (NonSpace != -1)
+   {
+      List = List.erase(NonSpace + 1);
+      if (List.empty() == true)
+        return true;
+   }
 
    // Acount for the leading space
    int ScreenWidth = ::ScreenWidth - 3;
       
    out << Title << endl;
    string::size_type Start = 0;
+   string::size_type VersionsStart = 0;
    while (Start < List.size())
    {
-      string::size_type End;
-      if (Start + ScreenWidth >= List.size())
-        End = List.size();
-      else
-        End = List.rfind(' ',Start+ScreenWidth);
-
-      if (End == string::npos || End < Start)
-        End = Start + ScreenWidth;
-      out << "  " << string(List,Start,End - Start) << endl;
-      Start = End + 1;
+      if(_config->FindB("APT::Get::Show-Versions",false) == true &&
+         VersionsList.size() > 0) {
+         string::size_type End;
+         string::size_type VersionsEnd;
+         
+         End = List.find(' ',Start);
+         VersionsEnd = VersionsList.find('\n', VersionsStart);
+
+         out << "   " << string(List,Start,End - Start) << " (" << 
+            string(VersionsList,VersionsStart,VersionsEnd - VersionsStart) << 
+            ")" << endl;
+
+        if (End == string::npos || End < Start)
+           End = Start + ScreenWidth;
+
+         Start = End + 1;
+         VersionsStart = VersionsEnd + 1;
+      } else {
+         string::size_type End;
+
+         if (Start + ScreenWidth >= List.size())
+            End = List.size();
+         else
+            End = List.rfind(' ',Start+ScreenWidth);
+
+         if (End == string::npos || End < Start)
+            End = Start + ScreenWidth;
+         out << "  " << string(List,Start,End - Start) << endl;
+         Start = End + 1;
+      }
    }   
+
    return false;
 }
                                                                        /*}}}*/
@@ -318,14 +348,17 @@ void ShowNew(ostream &out,CacheFile &Cache)
    /* Print out a list of packages that are going to be removed extra
       to what the user asked */
    string List;
+   string VersionsList;
    for (unsigned J = 0; J < Cache->Head().PackageCount; J++)
    {
       pkgCache::PkgIterator I(Cache,Cache.List[J]);
-      if (Cache[I].NewInstall() == true)
-        List += string(I.Name()) + " ";
+      if (Cache[I].NewInstall() == true) {
+         List += string(I.Name()) + " ";
+         VersionsList += string(Cache[I].CandVersion) + "\n";
+      }
    }
    
-   ShowList(out,_("The following NEW packages will be installed:"),List);
+   ShowList(out,_("The following NEW packages will be installed:"),List,VersionsList);
 }
                                                                        /*}}}*/
 // ShowDel - Show packages to delete                                   /*{{{*/
@@ -336,6 +369,7 @@ void ShowDel(ostream &out,CacheFile &Cache)
    /* Print out a list of packages that are going to be removed extra
       to what the user asked */
    string List;
+   string VersionsList;
    for (unsigned J = 0; J < Cache->Head().PackageCount; J++)
    {
       pkgCache::PkgIterator I(Cache,Cache.List[J]);
@@ -345,10 +379,12 @@ void ShowDel(ostream &out,CacheFile &Cache)
            List += string(I.Name()) + "* ";
         else
            List += string(I.Name()) + " ";
+     
+     VersionsList += string(Cache[I].CandVersion)+ "\n";
       }
    }
    
-   ShowList(out,_("The following packages will be REMOVED:"),List);
+   ShowList(out,_("The following packages will be REMOVED:"),List,VersionsList);
 }
                                                                        /*}}}*/
 // ShowKept - Show kept packages                                       /*{{{*/
@@ -357,6 +393,7 @@ void ShowDel(ostream &out,CacheFile &Cache)
 void ShowKept(ostream &out,CacheFile &Cache)
 {
    string List;
+   string VersionsList;
    for (unsigned J = 0; J < Cache->Head().PackageCount; J++)
    {    
       pkgCache::PkgIterator I(Cache,Cache.List[J]);
@@ -367,8 +404,9 @@ void ShowKept(ostream &out,CacheFile &Cache)
         continue;
       
       List += string(I.Name()) + " ";
+      VersionsList += string(Cache[I].CurVersion) + " => " + Cache[I].CandVersion + "\n";
    }
-   ShowList(out,_("The following packages have been kept back"),List);
+   ShowList(out,_("The following packages have been kept back"),List,VersionsList);
 }
                                                                        /*}}}*/
 // ShowUpgraded - Show upgraded packages                               /*{{{*/
@@ -377,6 +415,7 @@ void ShowKept(ostream &out,CacheFile &Cache)
 void ShowUpgraded(ostream &out,CacheFile &Cache)
 {
    string List;
+   string VersionsList;
    for (unsigned J = 0; J < Cache->Head().PackageCount; J++)
    {
       pkgCache::PkgIterator I(Cache,Cache.List[J]);
@@ -386,8 +425,9 @@ void ShowUpgraded(ostream &out,CacheFile &Cache)
         continue;
       
       List += string(I.Name()) + " ";
+      VersionsList += string(Cache[I].CurVersion) + " => " + Cache[I].CandVersion + "\n";
    }
-   ShowList(out,_("The following packages will be upgraded"),List);
+   ShowList(out,_("The following packages will be upgraded"),List,VersionsList);
 }
                                                                        /*}}}*/
 // ShowDowngraded - Show downgraded packages                           /*{{{*/
@@ -396,6 +436,7 @@ void ShowUpgraded(ostream &out,CacheFile &Cache)
 bool ShowDowngraded(ostream &out,CacheFile &Cache)
 {
    string List;
+   string VersionsList;
    for (unsigned J = 0; J < Cache->Head().PackageCount; J++)
    {
       pkgCache::PkgIterator I(Cache,Cache.List[J]);
@@ -405,8 +446,9 @@ bool ShowDowngraded(ostream &out,CacheFile &Cache)
         continue;
       
       List += string(I.Name()) + " ";
+      VersionsList += string(Cache[I].CurVersion) + " => " + Cache[I].CandVersion + "\n";
    }
-   return ShowList(out,_("The following packages will be DOWNGRADED"),List);
+   return ShowList(out,_("The following packages will be DOWNGRADED"),List,VersionsList);
 }
                                                                        /*}}}*/
 // ShowHold - Show held but changed packages                           /*{{{*/
@@ -415,15 +457,18 @@ bool ShowDowngraded(ostream &out,CacheFile &Cache)
 bool ShowHold(ostream &out,CacheFile &Cache)
 {
    string List;
+   string VersionsList;
    for (unsigned J = 0; J < Cache->Head().PackageCount; J++)
    {
       pkgCache::PkgIterator I(Cache,Cache.List[J]);
       if (Cache[I].InstallVer != (pkgCache::Version *)I.CurrentVer() &&
-         I->SelectedState == pkgCache::State::Hold)
-        List += string(I.Name()) + " ";
+          I->SelectedState == pkgCache::State::Hold) {
+         List += string(I.Name()) + " ";
+                VersionsList += string(Cache[I].CurVersion) + " => " + Cache[I].CandVersion + "\n";
+      }
    }
 
-   return ShowList(out,_("The following held packages will be changed:"),List);
+   return ShowList(out,_("The following held packages will be changed:"),List,VersionsList);
 }
                                                                        /*}}}*/
 // ShowEssential - Show an essential package warning                   /*{{{*/
@@ -434,6 +479,7 @@ bool ShowHold(ostream &out,CacheFile &Cache)
 bool ShowEssential(ostream &out,CacheFile &Cache)
 {
    string List;
+   string VersionsList;
    bool *Added = new bool[Cache->Head().PackageCount];
    for (unsigned int I = 0; I != Cache->Head().PackageCount; I++)
       Added[I] = false;
@@ -452,6 +498,7 @@ bool ShowEssential(ostream &out,CacheFile &Cache)
         {
            Added[I->ID] = true;
            List += string(I.Name()) + " ";
+        //VersionsList += string(Cache[I].CurVersion) + "\n"; ???
         }
       }
       
@@ -476,13 +523,14 @@ bool ShowEssential(ostream &out,CacheFile &Cache)
            char S[300];
            snprintf(S,sizeof(S),_("%s (due to %s) "),P.Name(),I.Name());
            List += S;
+        //VersionsList += "\n"; ???
         }       
       }      
    }
    
    delete [] Added;
    return ShowList(out,_("WARNING: The following essential packages will be removed\n"
-                        "This should NOT be done unless you know exactly what you are doing!"),List);
+                        "This should NOT be done unless you know exactly what you are doing!"),List,VersionsList);
 }
                                                                        /*}}}*/
 // Stats - Show some statistics                                                /*{{{*/
@@ -637,7 +685,8 @@ bool InstallPackages(CacheFile &Cache,bool ShwKept,bool Ask = true,
    if (_config->FindB("APT::Get::Show-Upgraded",false) == true)
       ShowUpgraded(c1out,Cache);
    Fail |= !ShowDowngraded(c1out,Cache);
-   Essential = !ShowEssential(c1out,Cache);
+   if (_config->FindB("APT::Get::Download-Only",false) == false)
+        Essential = !ShowEssential(c1out,Cache);
    Fail |= Essential;
    Stats(c1out,Cache);
    
@@ -982,6 +1031,7 @@ bool TryToInstall(pkgCache::PkgIterator Pkg,pkgDepCache &Cache,
           "of sources.list\n"),Pkg.Name());
         
         string List;
+        string VersionsList;
         SPtrArray<bool> Seen = new bool[Cache.Head().PackageCount];
         memset(Seen,0,Cache.Head().PackageCount*sizeof(*Seen));
         pkgCache::DepIterator Dep = Pkg.RevDependsList();
@@ -993,8 +1043,9 @@ bool TryToInstall(pkgCache::PkgIterator Pkg,pkgDepCache &Cache,
               continue;
            Seen[Dep.ParentPkg()->ID] = true;
            List += string(Dep.ParentPkg().Name()) + " ";
+        //VersionsList += string(Dep.ParentPkg().CurVersion) + "\n"; ???
         }          
-        ShowList(c1out,_("However the following packages replace it:"),List);
+        ShowList(c1out,_("However the following packages replace it:"),List,VersionsList);
       }
       
       _error->Error(_("Package %s has no installation candidate"),Pkg.Name());
@@ -1436,6 +1487,7 @@ bool DoInstall(CommandLine &CmdL)
    if (Cache->InstCount() != ExpectedInst)
    {
       string List;
+      string VersionsList;
       for (unsigned J = 0; J < Cache->Head().PackageCount; J++)
       {
         pkgCache::PkgIterator I(Cache,Cache.List[J]);
@@ -1447,11 +1499,79 @@ bool DoInstall(CommandLine &CmdL)
            if (strcmp(*J,I.Name()) == 0)
                break;
         
-        if (*J == 0)
+        if (*J == 0) {
            List += string(I.Name()) + " ";
+        VersionsList += string(Cache[I].CandVersion) + "\n";
+     }
       }
       
-      ShowList(c1out,_("The following extra packages will be installed:"),List);
+      ShowList(c1out,_("The following extra packages will be installed:"),List,VersionsList);
+   }
+
+   /* Print out a list of suggested and recommended packages */
+   {
+      string SuggestsList, RecommendsList, List;
+      string SuggestsVersions, RecommendsVersions;
+      for (unsigned J = 0; J < Cache->Head().PackageCount; J++)
+      {
+        pkgCache::PkgIterator I(Cache,Cache.List[J]);
+
+        /* Just look at the ones we want to install */
+        if ((*Cache)[I].Install() == false)
+          continue;
+
+        for (pkgCache::VerIterator V = I.VersionList(); V.end() == false; V++)
+          {
+            for (pkgCache::DepIterator D = V.DependsList(); D.end() == false; D++)
+              {
+                pkgCache::DepIterator Start;
+                pkgCache::DepIterator End;
+                D.GlobOr(Start,End);
+                do
+                  {
+                    if (Start->Type == pkgCache::Dep::Suggests) {
+
+                      /* A suggests relations, let's see if we have it 
+                         installed already */
+
+                      string target = string(Start.TargetPkg().Name()) + " ";
+                      if ((*Start.TargetPkg()).SelectedState == pkgCache::State::Install)
+                        break;
+                      /* Does another package suggest it as well?  If so,
+                         don't print it twice */
+                      if (int(SuggestsList.find(target)) > -1)
+                        break; 
+                      SuggestsList += target;
+                      SuggestsVersions += string(Cache[Start.TargetPkg()].CandVersion) + "\n";
+                    }
+                    
+                    if (Start->Type == pkgCache::Dep::Recommends) {
+
+                      /* A recommends relation, let's see if we have it
+                         installed already */
+
+                      string target = string(Start.TargetPkg().Name()) + " ";
+                      if ((*Start.TargetPkg()).SelectedState == pkgCache::State::Install)
+                        break;
+                      
+                      /* Does another package recommend it as well?  If so,
+                         don't print it twice */
+
+                      if (int(RecommendsList.find(target)) > -1)
+                        break;
+                      RecommendsList += target;
+                      SuggestsVersions += string(Cache[Start.TargetPkg()].CandVersion) + "\n";
+                    }
+             if (Start == End)
+               break;
+             Start++;
+           } while (1);
+              }
+          }
+      }
+      ShowList(c1out,_("Suggested packages:"),SuggestsList,SuggestsVersions);
+      ShowList(c1out,_("Recommended packages:"),RecommendsList,RecommendsVersions);
+
    }
 
    // See if we need to prompt
@@ -1920,32 +2040,53 @@ bool DoBuildDep(CommandLine &CmdL)
       pkgProblemResolver Fix(Cache);
       for (D = BuildDeps.begin(); D != BuildDeps.end(); D++)
       {
-        pkgCache::PkgIterator Pkg = Cache->FindPkg((*D).Package);
-        if (Pkg.end() == true)
+         if ((*D).Type == pkgSrcRecords::Parser::BuildConflict ||
+            (*D).Type == pkgSrcRecords::Parser::BuildConflictIndep)
          {
-           /* for a build-conflict; ignore unknown packages */
-           if ((*D).Type == pkgSrcRecords::Parser::BuildConflict || 
-               (*D).Type == pkgSrcRecords::Parser::BuildConflictIndep)
-               continue;
-
-           return _error->Error(_("%s dependency on %s cannot be satisfied because the package %s cannot be found"),
-                                Last->BuildDepType((*D).Type),Src.c_str(),(*D).Package.c_str());
+            pkgCache::PkgIterator Pkg = Cache->FindPkg((*D).Package);
+            // Build-conflicts on unknown packages are silently ignored
+            if (Pkg.end() == true)
+               continue;
+
+            pkgCache::VerIterator IV = (*Cache)[Pkg].InstVerIter(*Cache);
+
+            /* 
+             * Remove if we have an installed version that satisfies the 
+             * version criteria
+             */
+            if (IV.end() == false && 
+                Cache->VS().CheckDep(IV.VerStr(),(*D).Op,(*D).Version.c_str()) == true)
+               TryToInstall(Pkg,Cache,Fix,true,false,ExpectedInst);
          }
-        pkgCache::VerIterator IV = (*Cache)[Pkg].InstVerIter(*Cache);
-        
-        if ((*D).Type == pkgSrcRecords::Parser::BuildConflict || 
-            (*D).Type == pkgSrcRecords::Parser::BuildConflictIndep)
-        {
-           /* 
-            * conflict; need to remove if we have an installed version 
-            * that satisfies the version criterial 
-            */
-           if (IV.end() == false && 
-               Cache->VS().CheckDep(IV.VerStr(),(*D).Op,(*D).Version.c_str()) == true)
-              TryToInstall(Pkg,Cache,Fix,true,false,ExpectedInst);
-        } 
-        else 
-        {
+        else // BuildDep || BuildDepIndep
+         {
+           pkgCache::PkgIterator Pkg = Cache->FindPkg((*D).Package);
+           if (Pkg.end() == true)
+            {
+               // Check if there are any alternatives
+               if (((*D).Op & pkgCache::Dep::Or) != pkgCache::Dep::Or)
+                 return _error->Error(_("%s dependency for %s cannot be satisfied "
+                                         "because the package %s cannot be found"),
+                                        Last->BuildDepType((*D).Type),Src.c_str(),
+                                         (*D).Package.c_str());
+               // Try the next alternative
+               continue;
+            }
+
+            /*
+             * if there are alternatives, we've already picked one, so skip
+             * the rest
+             *
+             * TODO: this means that if there's a build-dep on A|B and B is
+             * installed, we'll still try to install A; more importantly,
+             * if A is currently broken, we cannot go back and try B. To fix 
+             * this would require we do a Resolve cycle for each package we 
+             * add to the install list. Ugh
+             */
+            while (D != BuildDeps.end() && 
+                   (((*D).Op & pkgCache::Dep::Or) == pkgCache::Dep::Or))
+               D++;
+                       
            /* 
             * If this is a virtual package, we need to check the list of
             * packages that provide it and see if any of those are
@@ -1955,22 +2096,35 @@ bool DoBuildDep(CommandLine &CmdL)
             for (; Prv.end() != true; Prv++)
               if ((*Cache)[Prv.OwnerPkg()].InstVerIter(*Cache).end() == false)
                  break;
-
-           if (Prv.end() == true)
-           {
-              /* 
-               * depends; need to install or upgrade if we don't have the
-               * package installed or if the version does not satisfy the
-               * build dep. This is complicated by the fact that if we
-               * depend on a version lower than what we already have 
-               * installed it is not clear what should be done; in practice
-               * this case should be rare though and right now nothing
-               * is done about it :-( 
-               */
-              if (IV.end() == true ||
-                 Cache->VS().CheckDep(IV.VerStr(),(*D).Op,(*D).Version.c_str()) == false)
-                    TryToInstall(Pkg,Cache,Fix,false,false,ExpectedInst);
-           }
+            
+            // Get installed version and version we are going to install
+           pkgCache::VerIterator IV = (*Cache)[Pkg].InstVerIter(*Cache);
+           pkgCache::VerIterator CV = (*Cache)[Pkg].CandidateVerIter(*Cache);
+
+            for (; CV.end() != true; CV++)
+            {
+               if (Cache->VS().CheckDep(CV.VerStr(),(*D).Op,(*D).Version.c_str()) == true)
+                  break;
+            }
+            if (CV.end() == true)
+              return _error->Error(_("%s dependency for %s cannot be satisfied "
+                                      "because no available versions of package %s "
+                                      "can satisfy version requirements"),
+                                     Last->BuildDepType((*D).Type),Src.c_str(),
+                                      (*D).Package.c_str());
+
+            /*
+            * TODO: if we depend on a version lower than what we already have 
+            * installed it is not clear what should be done; in practice
+            * this case should be rare, and right now nothing is 
+             * done about it :-( 
+            */
+           if (Prv.end() == true && // Nothing provides it; and
+                (IV.end() == true || //  It is not installed, or
+                Cache->VS().CheckDep(IV.VerStr(),(*D).Op,(*D).Version.c_str()) == false))
+                                     //  the version installed doesn't 
+                                     //  satisfy constraints 
+              TryToInstall(Pkg,Cache,Fix,false,false,ExpectedInst);
         }             
       }
       
@@ -2090,6 +2244,7 @@ bool ShowHelp(CommandLine &CmdL)
       "  -m  Attempt to continue if archives are unlocatable\n"
       "  -u  Show a list of upgraded packages as well\n"
       "  -b  Build the source package after fetching it\n"
+      "  -V  Show verbose version numbers\n"
       "  -c=? Read this configuration file\n"
       "  -o=? Set an arbitary configuration option, eg -o dir::cache=/tmp\n"
       "See the apt-get(8), sources.list(5) and apt.conf(5) manual\n"
@@ -2133,6 +2288,7 @@ int main(int argc,const char *argv[])
    CommandLine::Args Args[] = {
       {'h',"help","help",0},
       {'v',"version","version",0},
+      {'V',"verbose-versions","APT::Get::Show-Versions",0},
       {'q',"quiet","quiet",CommandLine::IntLevel},
       {'q',"silent","quiet",CommandLine::IntLevel},
       {'d',"download-only","APT::Get::Download-Only",0},