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From c336b40705bdc1857376b3b3224b684ac696c186 Mon Sep 17 00:00:00 2001
From: Michal Luscon <mluscon@redhat.com>
Date: Fri, 18 Dec 2015 12:28:58 +0100
Subject: [PATCH] Revert "Rework multiversion orphaned handling"

---
 src/rules.c                                  | 106 +++++++++++++++------------
 src/solver.c                                 |  16 ++--
 test/testcases/distupgrade/dup_multiversion1 |  91 -----------------------
 test/testcases/distupgrade/dup_multiversion2 | 106 ---------------------------
 test/testcases/distupgrade/dup_multiversion3 |  88 ----------------------
 5 files changed, 64 insertions(+), 343 deletions(-)
 delete mode 100644 test/testcases/distupgrade/dup_multiversion1
 delete mode 100644 test/testcases/distupgrade/dup_multiversion2
 delete mode 100644 test/testcases/distupgrade/dup_multiversion3

diff --git a/src/rules.c b/src/rules.c
index 248b1cd..1fe21e1 100644
--- a/src/rules.c
+++ b/src/rules.c
@@ -1157,19 +1157,17 @@ finddistupgradepackages(Solver *solv, Solvable *s, Queue *qs, int allow_all)
   if (!qs->count)
     {
       if (allow_all)
-        return 0;		/* orphaned, don't create feature rule */
+        return 0;	/* orphaned, don't create feature rule */
       /* check if this is an orphaned package */
       policy_findupdatepackages(solv, s, qs, 1);
       if (!qs->count)
-	return 0;		/* orphaned, don't create update rule */
+	return 0;	/* orphaned, don't create update rule */
       qs->count = 0;
       return -SYSTEMSOLVABLE;	/* supported but not installable */
     }
   if (allow_all)
     return s - pool->solvables;
   /* check if it is ok to keep the installed package */
-  if (solv->dupmap.size && MAPTST(&solv->dupmap,  s - pool->solvables))
-    return s - pool->solvables;
   for (i = 0; i < qs->count; i++)
     {
       Solvable *ns = pool->solvables + qs->elements[i];
@@ -1180,7 +1178,6 @@ finddistupgradepackages(Solver *solv, Solvable *s, Queue *qs, int allow_all)
   return -SYSTEMSOLVABLE;
 }
 
-#if 0
 /* add packages from the dup repositories to the update candidates
  * this isn't needed for the global dup mode as all packages are
  * from dup repos in that case */
@@ -1204,7 +1201,6 @@ addduppackages(Solver *solv, Solvable *s, Queue *qs)
     }
   queue_free(&dupqs);
 }
-#endif
 
 /*-------------------------------------------------------------------
  *
@@ -1222,15 +1218,18 @@ solver_addupdaterule(Solver *solv, Solvable *s, int allow_all)
   Id p, d;
   Queue qs;
   Id qsbuf[64];
-  int isorphaned = 0;
 
   queue_init_buffer(&qs, qsbuf, sizeof(qsbuf)/sizeof(*qsbuf));
   p = s - pool->solvables;
   /* find update candidates for 's' */
-  if (solv->dupmap_all || (solv->dupinvolvedmap.size && MAPTST(&solv->dupinvolvedmap, p)))
+  if (solv->dupmap_all)
     p = finddistupgradepackages(solv, s, &qs, allow_all);
   else
-    policy_findupdatepackages(solv, s, &qs, allow_all);
+    {
+      policy_findupdatepackages(solv, s, &qs, allow_all);
+      if (!allow_all && solv->dupinvolvedmap.size && MAPTST(&solv->dupinvolvedmap, p))
+        addduppackages(solv, s, &qs);
+    }
 
 #ifdef ENABLE_LINKED_PKGS
   if (solv->instbuddy && solv->instbuddy[s - pool->solvables - solv->installed->start])
@@ -1238,7 +1237,7 @@ solver_addupdaterule(Solver *solv, Solvable *s, int allow_all)
       const char *name = pool_id2str(pool, s->name);
       if (strncmp(name, "pattern:", 8) == 0 || strncmp(name, "application:", 12) == 0)
 	{
-	  /* a linked pseudo package. As it is linked, we do not need an update/feature rule */
+	  /* a linked pseudo package. As it is linked, we do not need an update rule */
 	  /* nevertheless we set specialupdaters so we can update */
 	  solver_addrule(solv, 0, 0, 0);
 	  if (!allow_all && qs.count)
@@ -1255,14 +1254,11 @@ solver_addupdaterule(Solver *solv, Solvable *s, int allow_all)
     }
 #endif
 
-  if (!allow_all && !p)		/* !p implies qs.count == 0 */
+  if (!allow_all && !p && solv->dupmap_all)
     {
       queue_push(&solv->orphaned, s - pool->solvables);		/* an orphaned package */
       if (solv->keep_orphans && !(solv->droporphanedmap_all || (solv->droporphanedmap.size && MAPTST(&solv->droporphanedmap, s - pool->solvables - solv->installed->start))))
 	p = s - pool->solvables;	/* keep this orphaned package installed */
-      queue_free(&qs);
-      solver_addrule(solv, p, 0, 0);
-      return;
     }
 
   if (!allow_all && qs.count && solv->multiversion.size)
@@ -1275,7 +1271,7 @@ solver_addupdaterule(Solver *solv, Solvable *s, int allow_all)
       if (i < qs.count)
 	{
 	  /* filter out all multiversion packages as they don't update */
-	  d = pool_queuetowhatprovides(pool, &qs);	/* save qs away */
+	  d = pool_queuetowhatprovides(pool, &qs);
 	  for (j = i; i < qs.count; i++)
 	     {
 	      if (MAPTST(&solv->multiversion, qs.elements[i]))
@@ -1294,25 +1290,19 @@ solver_addupdaterule(Solver *solv, Solvable *s, int allow_all)
 		}
 	      qs.elements[j++] = qs.elements[i];
 	    }
-	  if (j < qs.count)		/* filtered at least one package? */
+	  if (j < qs.count)
 	    {
-	      if (j == 0 && p == -SYSTEMSOLVABLE)
+	      if (d && solv->installed && s->repo == solv->installed &&
+		  (solv->updatemap_all || (solv->updatemap.size && MAPTST(&solv->updatemap, s - pool->solvables - solv->installed->start))))
 		{
-		  /* this is a multiversion orphan */
-		  queue_push(&solv->orphaned, s - pool->solvables);
 		  if (!solv->specialupdaters)
 		    solv->specialupdaters = solv_calloc(solv->installed->end - solv->installed->start, sizeof(Id));
 		  solv->specialupdaters[s - pool->solvables - solv->installed->start] = d;
-		  if (solv->keep_orphans && !(solv->droporphanedmap_all || (solv->droporphanedmap.size && MAPTST(&solv->droporphanedmap, s - pool->solvables - solv->installed->start))))
-		    {
-		      /* we need to keep the orphan */
-		      queue_free(&qs);
-		      solver_addrule(solv, s - pool->solvables, 0, 0);
-		      return;
-		    }
-		  /* we can drop it as long as we update */
-		  isorphaned = 1;
-		  j = qs.count;		/* force the update */
+		}
+	      if (j == 0 && p == -SYSTEMSOLVABLE && solv->dupmap_all)
+		{
+		  queue_push(&solv->orphaned, s - pool->solvables);	/* also treat as orphaned */
+		  j = qs.count;
 		}
 	      qs.count = j;
 	    }
@@ -1320,13 +1310,11 @@ solver_addupdaterule(Solver *solv, Solvable *s, int allow_all)
 	    {
 	      /* could fallthrough, but then we would do pool_queuetowhatprovides twice */
 	      queue_free(&qs);
-	      solver_addrule(solv, s - pool->solvables, 0, d);	/* allow update of s */
+	      solver_addrule(solv, p, 0, d);	/* allow update of s */
 	      return;
 	    }
 	}
     }
-  if (!isorphaned && p == -SYSTEMSOLVABLE && solv->dupmap.size)
-    p = s - pool->solvables;		/* let the dup rules sort it out */
   if (qs.count && p == -SYSTEMSOLVABLE)
     p = queue_shift(&qs);
   if (qs.count > 1)
@@ -1804,6 +1792,29 @@ solver_freedupmaps(Solver *solv)
    * policy's priority pruning code. sigh. */
 }
 
+static int
+is_multiversion_orphan(Solver *solv, Id p)
+{
+  Pool *pool = solv->pool;
+  Solvable *s = pool->solvables + p;
+  Rule *r = solv->rules + solv->updaterules + (p - solv->installed->start);
+  Id l, pp;
+  if (!r->p)
+    return 0;
+  FOR_RULELITERALS(l, pp, r)
+    {
+      Solvable *ps = pool->solvables + l;
+      /* see multiversion code in solver_addupdaterule */
+      if (!MAPTST(&solv->multiversion, l))
+	return 0;
+      if (solv->keepexplicitobsoletes && ps->name != s->name)
+	return 0;
+      if (ps->name == s->name && ps->evr == s->evr && ps->arch == s->arch)
+	return 0;
+    }
+  return 1;
+}
+
 void
 solver_addduprules(Solver *solv, Map *addedmap)
 {
@@ -1812,7 +1823,6 @@ solver_addduprules(Solver *solv, Map *addedmap)
   Id p, pp;
   Solvable *s, *ps;
   int first, i;
-  Rule *r;
 
   solv->duprules = solv->nrules;
   for (i = 1; i < pool->nsolvables; i++)
@@ -1849,22 +1859,24 @@ solver_addduprules(Solver *solv, Map *addedmap)
 		      if (is->evr == ps->evr && solvable_identical(ps, is))
 			break;
 		    }
-		  if (ip)
-		    {
-		      /* ok, found a good one. we may keep this package. */
-		      MAPSET(&solv->dupmap, p);		/* for best rules processing */
-		      continue;
-		    }
-		  r = solv->rules + solv->updaterules + (p - installed->start);
-		  if (!r->p)
-		      r = solv->rules + solv->featurerules + (p - installed->start);
-		  if (r->p && solv->specialupdaters && solv->specialupdaters[p - installed->start])
+		  if (!ip && solv->keep_orphans)
 		    {
-		      /* this is a multiversion orphan, we're good if an update is installed */
-		      solver_addrule(solv, -p, 0, solv->specialupdaters[p - installed->start]);
-		      continue;
+		      /* is this an orphan we should keep? */
+		      Rule *r = solv->rules + solv->featurerules + (p - installed->start);
+		      if (!r->p)
+			r += solv->updaterules - solv->featurerules;
+		      if (r->p == p && !r->d)
+			ip = p;
+		      else if (solv->dupmap_all && solv->multiversion.size)
+			{
+			  if (is_multiversion_orphan(solv, p))
+			    ip = p;
+			}
 		    }
-		  solver_addrule(solv, -p, 0, 0);	/* no match, sorry */
+		  if (!ip)
+		    solver_addrule(solv, -p, 0, 0);	/* no match, sorry */
+		  else
+		    MAPSET(&solv->dupmap, p);		/* for best rules processing */
 		}
 	    }
 	  else if (!MAPTST(&solv->dupmap, p))
diff --git a/src/solver.c b/src/solver.c
index 2e28b7d..c7b21d9 100644
--- a/src/solver.c
+++ b/src/solver.c
@@ -225,7 +225,7 @@ autouninstall(Solver *solv, Id *problem)
 	      if (v > lastfeature)
 		lastfeature = v;
 	      /* prefer orphaned packages in dup mode */
-	      if (solv->keep_orphans)
+	      if (solv->dupmap_all && solv->keep_orphans)
 		{
 		  r = solv->rules + v;
 		  if (!r->d && r->p == (solv->installed->start + (v - solv->updaterules)))
@@ -2725,7 +2725,7 @@ solver_run_sat(Solver *solv, int disablerules, int doweak)
 
       if (!solv->decisioncnt_orphan)
         solv->decisioncnt_orphan = solv->decisionq.count;
-      if (solv->installed && (solv->orphaned.count || solv->brokenorphanrules))
+      if (solv->dupmap_all && solv->installed)
 	{
 	  int installedone = 0;
 
@@ -3632,9 +3632,7 @@ solver_solve(Solver *solv, Queue *job)
 	      if (how & SOLVER_FORCEBEST)
 		solv->bestupdatemap_all = 1;
 	    }
-	  if ((how & SOLVER_TARGETED) != 0)
-	    needduprules = 1;
-	  if (!solv->dupmap_all || solv->allowuninstall || solv->allowuninstall_all || solv->allowuninstallmap.size || solv->keep_orphans)
+	  if (!solv->dupmap_all || solv->allowuninstall || solv->allowuninstall_all || solv->allowuninstallmap.size)
 	    needduprules = 1;
 	  break;
 	default:
@@ -3749,13 +3747,9 @@ solver_solve(Solver *solv, Queue *job)
 	   * check for and remove duplicate
 	   */
 	  r = solv->rules + solv->nrules - 1;           /* r: update rule */
-	  sr = r - (installed->end - installed->start); /* sr: feature rule */
           if (!r->p)
-	    {
-	      if (sr->p)
-	        memset(sr, 0, sizeof(*sr));		/* no feature rules without update rules */
-	      continue;
-	    }
+	    continue;
+	  sr = r - (installed->end - installed->start); /* sr: feature rule */
 	  /* it's also orphaned if the feature rule consists just of the installed package */
 	  if (!solv->dupmap_all && sr->p == i && !sr->d && !sr->w2)
 	    queue_push(&solv->orphaned, i);
diff --git a/test/testcases/distupgrade/dup_multiversion1 b/test/testcases/distupgrade/dup_multiversion1
deleted file mode 100644
index 326de7a..0000000
--- a/test/testcases/distupgrade/dup_multiversion1
+++ /dev/null
@@ -1,91 +0,0 @@
-# test dup with multiversion packages
-#
-# part 1: simple update
-repo system 0 testtags <inline>
-#>=Pkg: a 1 1 i686
-repo available 0 testtags <inline>
-#>=Pkg: a 2 1 i686
-system i686 * system
-
-job multiversion name a
-job distupgrade all packages
-# a-1-1 is treated as orphaned and stays behind
-result transaction,problems <inline>
-#>install a-2-1.i686@available
-
-nextjob
-
-job multiversion name a
-job distupgrade repo available
-# a-1-1 is treated as orphaned and stays behind
-result transaction,problems <inline>
-#>install a-2-1.i686@available
-
-
-### same with keeporphans
-
-nextjob
-
-solverflags keeporphans
-job multiversion name a
-job distupgrade all packages
-# a-1-1 is treated as orphaned and stays behind
-result transaction,problems <inline>
-#>install a-2-1.i686@available
-
-
-nextjob
-
-solverflags keeporphans
-job multiversion name a
-job distupgrade repo available
-# a-1-1 is treated as orphaned and stays behind
-result transaction,problems <inline>
-#>install a-2-1.i686@available
-
-
-### same with allowuninstall
-
-nextjob
-
-solverflags allowuninstall
-job multiversion name a
-job distupgrade all packages
-# a-1-1 is treated as orphaned and stays behind
-result transaction,problems <inline>
-#>install a-2-1.i686@available
-
-
-nextjob
-
-solverflags allowuninstall
-job multiversion name a
-job distupgrade repo available
-# a-1-1 is treated as orphaned and stays behind
-result transaction,problems <inline>
-#>install a-2-1.i686@available
-
-
-### same with allowuninstall and keeporphans
-
-nextjob
-
-solverflags allowuninstall keeporphans
-job multiversion name a
-job distupgrade all packages
-# a-1-1 is treated as orphaned and stays behind
-result transaction,problems <inline>
-#>install a-2-1.i686@available
-
-
-nextjob
-
-solverflags allowuninstall keeporphans
-job multiversion name a
-job distupgrade repo available
-# a-1-1 is treated as orphaned and stays behind
-result transaction,problems <inline>
-#>install a-2-1.i686@available
-
-
-
diff --git a/test/testcases/distupgrade/dup_multiversion2 b/test/testcases/distupgrade/dup_multiversion2
deleted file mode 100644
index 18909eb..0000000
--- a/test/testcases/distupgrade/dup_multiversion2
+++ /dev/null
@@ -1,106 +0,0 @@
-# test dup with multiversion packages
-# same as with dup_multiversion1, but we can't keep the orphan
-
-#
-# part 1: simple update
-repo system 0 testtags <inline>
-#>=Pkg: a 1 1 i686
-#>=Pkg: b 1 1 i686
-repo available 0 testtags <inline>
-#>=Pkg: a 2 1 i686
-#>=Pkg: b 2 1 i686
-#>=Con: a = 1-1
-system i686 * system
-
-job multiversion name a
-job distupgrade all packages
-result transaction,problems <inline>
-#>erase a-1-1.i686@system
-#>install a-2-1.i686@available
-#>upgrade b-1-1.i686@system b-2-1.i686@available
-
-nextjob
-
-job multiversion name a
-job distupgrade repo available
-result transaction,problems <inline>
-#>erase a-1-1.i686@system
-#>install a-2-1.i686@available
-#>upgrade b-1-1.i686@system b-2-1.i686@available
-
-
-### same with keeporphans, this will result in problems as we cannot keep the orphan
-
-nextjob
-
-solverflags keeporphans
-job multiversion name a
-job distupgrade all packages
-result transaction,problems <inline>
-#>install a-2-1.i686@available
-#>problem 4d4de423 info package b-2-1.i686 conflicts with a = 1-1 provided by a-1-1.i686
-#>problem 4d4de423 solution 2cf4745c erase a-1-1.i686@system
-#>problem 4d4de423 solution 2cf4745c replace a-1-1.i686@system a-2-1.i686@available
-#>problem 4d4de423 solution 5a433aff allow b-1-1.i686@system
-#>problem 4d4de423 solution ce4305f2 erase b-1-1.i686@system
-
-nextjob
-
-solverflags keeporphans
-job multiversion name a
-job distupgrade repo available
-result transaction,problems <inline>
-#>install a-2-1.i686@available
-#>problem 4d4de423 info package b-2-1.i686 conflicts with a = 1-1 provided by a-1-1.i686
-#>problem 4d4de423 solution 2cf4745c erase a-1-1.i686@system
-#>problem 4d4de423 solution 2cf4745c replace a-1-1.i686@system a-2-1.i686@available
-#>problem 4d4de423 solution 5a433aff allow b-1-1.i686@system
-#>problem 4d4de423 solution ce4305f2 erase b-1-1.i686@system
-
-### same with allowuninstall
-
-nextjob
-
-solverflags allowuninstall
-job multiversion name a
-job distupgrade all packages
-result transaction,problems <inline>
-#>erase a-1-1.i686@system
-#>install a-2-1.i686@available
-#>upgrade b-1-1.i686@system b-2-1.i686@available
-
-nextjob
-
-solverflags allowuninstall
-job multiversion name a
-job distupgrade repo available
-result transaction,problems <inline>
-#>erase a-1-1.i686@system
-#>install a-2-1.i686@available
-#>upgrade b-1-1.i686@system b-2-1.i686@available
-
-
-### same with allowuninstall and keeporphans
-
-nextjob
-
-solverflags allowuninstall keeporphans
-job multiversion name a
-job distupgrade all packages
-# a-1-1 is treated as orphaned and stays behind
-result transaction,problems <inline>
-#>erase b-1-1.i686@system
-#>install a-2-1.i686@available
-
-
-nextjob
-
-solverflags allowuninstall keeporphans
-job multiversion name a
-job distupgrade repo available
-# a-1-1 is treated as orphaned and stays behind
-result transaction,problems <inline>
-#>erase b-1-1.i686@system
-#>install a-2-1.i686@available
-
-
diff --git a/test/testcases/distupgrade/dup_multiversion3 b/test/testcases/distupgrade/dup_multiversion3
deleted file mode 100644
index 8be3190..0000000
--- a/test/testcases/distupgrade/dup_multiversion3
+++ /dev/null
@@ -1,88 +0,0 @@
-# test dup with multiversion packages where we cannot install the
-# target. Should give problems except for allowuninstall.
-#
-# part 1: simple update
-repo system 0 testtags <inline>
-#>=Pkg: a 1 1 i686
-repo available 0 testtags <inline>
-#>=Pkg: a 2 1 i686
-#>=Req: c
-system i686 * system
-
-job multiversion name a
-job distupgrade all packages
-result transaction,problems <inline>
-#>problem 251f1f35 info nothing provides c needed by a-2-1.i686
-#>problem 251f1f35 solution 2f2d254c allow a-1-1.i686@system
-
-nextjob
-
-job multiversion name a
-job distupgrade repo available
-result transaction,problems <inline>
-#>erase a-1-1.i686@system
-#>problem 251f1f35 info nothing provides c needed by a-2-1.i686
-#>problem 251f1f35 solution 2f2d254c allow a-1-1.i686@system
-
-### same with keeporphans
-
-nextjob
-
-solverflags keeporphans
-job multiversion name a
-job distupgrade all packages
-result transaction,problems <inline>
-#>problem 771581fd info nothing provides c needed by a-2-1.i686
-#>problem 771581fd solution 179b72ed allow a-1-1.i686@system
-#>problem 771581fd solution 2cf4745c erase a-1-1.i686@system
-
-nextjob
-
-solverflags keeporphans
-job multiversion name a
-job distupgrade repo available
-result transaction,problems <inline>
-#>problem 771581fd info nothing provides c needed by a-2-1.i686
-#>problem 771581fd solution 179b72ed allow a-1-1.i686@system
-#>problem 771581fd solution 2cf4745c erase a-1-1.i686@system
-
-### same with allowuninstall
-
-nextjob
-
-solverflags allowuninstall
-job multiversion name a
-job distupgrade all packages
-result transaction,problems <inline>
-#>erase a-1-1.i686@system
-
-
-nextjob
-
-solverflags allowuninstall
-job multiversion name a
-job distupgrade repo available
-result transaction,problems <inline>
-#>erase a-1-1.i686@system
-
-
-### same with allowuninstall and keeporphans
-
-nextjob
-
-solverflags allowuninstall keeporphans
-job multiversion name a
-job distupgrade all packages
-result transaction,problems <inline>
-#>erase a-1-1.i686@system
-
-
-nextjob
-
-solverflags allowuninstall keeporphans
-job multiversion name a
-job distupgrade repo available
-result transaction,problems <inline>
-#>erase a-1-1.i686@system
-
-
-- 
2.4.3