Imported Upstream version 0.7.16
[platform/upstream/libsolv.git] / src / rules.c
index f735e5d..6c8e82b 100644 (file)
@@ -613,7 +613,7 @@ add_complex_deprules(Solver *solv, Id p, Id dep, int type, int dontfix, Queue *w
        }
       else
        {
-         Id *qele;
+         Id *qele, d;
          int qcnt;
 
          qele = bq.elements + i;
@@ -653,7 +653,17 @@ add_complex_deprules(Solver *solv, Id p, Id dep, int type, int dontfix, Queue *w
              break;
          if (j < qcnt)
            continue;
-         addpkgrule(solv, qele[0], 0, pool_ids2whatprovides(pool, qele + 1, qcnt - 1), type, dep);
+         d = pool_ids2whatprovides(pool, qele + 1, qcnt - 1);
+         if (solv->ruleinfoq && qele[0] != p)
+           {
+             int oldcount = solv->ruleinfoq->count;
+             addpkgrule(solv, qele[0], 0, d, type, dep);
+             /* fixup from element of ruleinfo */
+             if (solv->ruleinfoq->count > oldcount)
+               solv->ruleinfoq->elements[oldcount + 1] = p;
+           }
+         else
+           addpkgrule(solv, qele[0], 0, d, type, dep);
          if (m)
            for (j = 0; j < qcnt; j++)
              if (qele[j] > 0 && !MAPTST(m, qele[j]))
@@ -2729,7 +2739,8 @@ addpkgruleinfo(Solver *solv, Id p, Id p2, Id d, int type, Id dep)
          if (*odp)
            return;
        }
-      if (p < 0 && pool->whatprovidesdata[d] < 0 && type == SOLVER_RULE_PKG_CONFLICTS)
+      /* set p2 for multiversion conflicts */
+      if (p < 0 && pool->whatprovidesdata[d] < 0 && pool->whatprovidesdata[d + 1] >= 0 && type == SOLVER_RULE_PKG_CONFLICTS)
        p2 = pool->whatprovidesdata[d];
     }
   else
@@ -3176,6 +3187,44 @@ solver_choicerulecheck(Solver *solv, Id pi, Rule *r, Map *m, Queue *q)
   return 1;    /* none of the new packages provided it */
 }
 
+static int
+solver_choicerulecheck2(Solver *solv, Id pi, Id pt, Queue *q)
+{
+  Pool *pool = solv->pool;
+  Rule *ur;
+  Id p, pp;
+  int i;
+
+  if (!q->count || q->elements[0] != pi)
+    {
+      if (q->count)
+        queue_empty(q);
+      ur = solv->rules + solv->updaterules + (pi - pool->installed->start);
+      if (!ur->p)
+        ur = solv->rules + solv->featurerules + (pi - pool->installed->start);
+      if (!ur->p)
+       return 0;
+      queue_push2(q, pi, 0);
+      FOR_RULELITERALS(p, pp, ur)
+       if (p > 0 && p != pi)
+         queue_push(q, p);
+      queue_push(q, pi);
+    }
+  if (q->count <= 3)
+    return q->count == 3 && q->elements[2] == pt ? 1 : 0;
+  if (!q->elements[1])
+    {
+      queue_deleten(q, 0, 2);
+      policy_filter_unwanted(solv, q, POLICY_MODE_CHOOSE);
+      queue_unshift(q, 1);     /* filter mark */
+      queue_unshift(q, pi);
+    }
+  for (i = 2; i < q->count; i++)
+    if (q->elements[i] == pt)
+      return 1;
+  return 0;    /* not newest */
+}
+
 static inline void
 queue_removeelement(Queue *q, Id el)
 {
@@ -3192,20 +3241,62 @@ queue_removeelement(Queue *q, Id el)
     }
 }
 
+static Id
+choicerule_find_installed(Pool *pool, Id p)
+{
+  Solvable *s = pool->solvables + p;
+  Id p2, pp2;
+
+  if (!s->repo)
+    return 0;
+  if (s->repo == pool->installed)
+    return p;
+  FOR_PROVIDES(p2, pp2, s->name)
+    {
+      Solvable *s2 = pool->solvables + p2;
+      if (s2->repo != pool->installed)
+       continue;
+      if (!pool->implicitobsoleteusesprovides && s->name != s2->name)
+       continue;
+      if (pool->implicitobsoleteusescolors && !pool_colormatch(pool, s, s2))
+       continue;
+      return p2;
+    }
+  if (s->obsoletes)
+    {
+      Id obs, *obsp = s->repo->idarraydata + s->obsoletes;
+      while ((obs = *obsp++) != 0)
+       {
+         FOR_PROVIDES(p2, pp2, obs)
+           {
+             Solvable *s2 = pool->solvables + p2;
+             if (s2->repo != pool->installed)
+               continue;
+             if (!pool->obsoleteusesprovides && !pool_match_nevr(pool, pool->solvables + p2, obs))
+               continue;
+             if (pool->obsoleteusescolors && !pool_colormatch(pool, s, s2))
+               continue;
+             return p2;
+           }
+       }
+    }
+  return 0;
+}
+
 void
 solver_addchoicerules(Solver *solv)
 {
   Pool *pool = solv->pool;
   Map m, mneg;
   Rule *r;
-  Queue q, qi, qcheck, infoq;
-  int i, j, rid, havechoice;
-  Id p, d, pp;
-  Id p2, pp2;
-  Solvable *s, *s2;
+  Queue q, qi, qcheck, qcheck2, infoq;
+  int i, j, rid, havechoice, negcnt;
+  Id p, d, pp, p2;
+  Solvable *s;
   Id lastaddedp, lastaddedd;
   int lastaddedcnt;
   unsigned int now;
+  int isnewest = 0;
 
   solv->choicerules = solv->nrules;
   if (!pool->installed)
@@ -3218,6 +3309,7 @@ solver_addchoicerules(Solver *solv)
   queue_init(&q);
   queue_init(&qi);
   queue_init(&qcheck);
+  queue_init(&qcheck2);
   queue_init(&infoq);
   map_init(&m, pool->nsolvables);
   map_init(&mneg, pool->nsolvables);
@@ -3249,80 +3341,28 @@ solver_addchoicerules(Solver *solv)
            continue;
          if (s->repo == pool->installed)
            {
+             queue_push2(&qi, p, p);
              queue_push(&q, p);
              continue;
            }
-         /* check if this package is "blocked" by a installed package */
-         s2 = 0;
-         FOR_PROVIDES(p2, pp2, s->name)
-           {
-             s2 = pool->solvables + p2;
-             if (s2->repo != pool->installed)
-               continue;
-             if (!pool->implicitobsoleteusesprovides && s->name != s2->name)
-               continue;
-             if (pool->implicitobsoleteusescolors && !pool_colormatch(pool, s, s2))
-               continue;
-             break;
-           }
+         /* find an installed package p2 that we can update/downgrade to p */
+         p2 = choicerule_find_installed(pool, p);
          if (p2)
            {
-             /* found installed package p2 that we can update to p */
              if (MAPTST(&mneg, p))
                continue;
-             if (policy_is_illegal(solv, s2, s, 0))
+             if (policy_is_illegal(solv, pool->solvables + p2, s, 0))
                continue;
-#if 0
-             if (solver_choicerulecheck(solv, p2, r, &m))
-               continue;
-             queue_push(&qi, p2);
-#else
              queue_push2(&qi, p2, p);
-#endif
              queue_push(&q, p);
              continue;
            }
-         if (s->obsoletes)
-           {
-             Id obs, *obsp = s->repo->idarraydata + s->obsoletes;
-             s2 = 0;
-             while ((obs = *obsp++) != 0)
-               {
-                 FOR_PROVIDES(p2, pp2, obs)
-                   {
-                     s2 = pool->solvables + p2;
-                     if (s2->repo != pool->installed)
-                       continue;
-                     if (!pool->obsoleteusesprovides && !pool_match_nevr(pool, pool->solvables + p2, obs))
-                       continue;
-                     if (pool->obsoleteusescolors && !pool_colormatch(pool, s, s2))
-                       continue;
-                     break;
-                   }
-                 if (p2)
-                   break;
-               }
-             if (obs)
-               {
-                 /* found installed package p2 that we can update to p */
-                 if (MAPTST(&mneg, p))
-                   continue;
-                 if (policy_is_illegal(solv, s2, s, 0))
-                   continue;
-#if 0
-                 if (solver_choicerulecheck(solv, p2, r, &m))
-                   continue;
-                 queue_push(&qi, p2);
-#else
-                 queue_push2(&qi, p2, p);
-#endif
-                 queue_push(&q, p);
-                 continue;
-               }
-           }
          /* package p is independent of the installed ones */
          havechoice = 1;
        }
+#if 0
+      printf("havechoice: %d qcount %d qicount %d\n", havechoice, q.count, qi.count);
+#endif
       if (!havechoice || !q.count || !qi.count)
        continue;       /* no choice */
 
@@ -3330,13 +3370,25 @@ solver_addchoicerules(Solver *solv)
         if (p > 0)
          MAPSET(&m, p);
 
+      isnewest = 1;
+      FOR_RULELITERALS(p, pp, r)
+       {
+         if (p > 0)
+           break;
+         p2 = choicerule_find_installed(pool, -p);
+         if (p2 && !solver_choicerulecheck2(solv, p2, -p, &qcheck2))
+           {
+             isnewest = 0;
+             break;
+           }
+       }
       /* do extra checking */
       for (i = j = 0; i < qi.count; i += 2)
        {
          p2 = qi.elements[i];
          if (!p2)
            continue;
-         if (solver_choicerulecheck(solv, p2, r, &m, &qcheck))
+         if (isnewest && solver_choicerulecheck(solv, p2, r, &m, &qcheck))
            {
              /* oops, remove element p from q */
              queue_removeelement(&q, qi.elements[i + 1]);
@@ -3378,9 +3430,12 @@ solver_addchoicerules(Solver *solv)
              qi.elements[j] = 0;
        }
       /* empty map again */
+      negcnt = 0;
       FOR_RULELITERALS(p, pp, r)
         if (p > 0)
          MAPCLR(&m, p);
+       else
+         negcnt++;
       if (i == qi.count)
        {
 #if 0
@@ -3389,7 +3444,14 @@ solver_addchoicerules(Solver *solv)
 #endif
          continue;
        }
-
+      /* add neg elements to the front */
+      if (negcnt > 1)
+       {
+         i = 0;
+         FOR_RULELITERALS(p, pp, r)
+          if (p < 0 && p != r->p)
+            queue_insert(&q, i++, p);
+       }
       /* don't add identical rules */
       if (lastaddedp == r->p && lastaddedcnt == q.count)
        {
@@ -3420,6 +3482,7 @@ solver_addchoicerules(Solver *solv)
   queue_free(&q);
   queue_free(&qi);
   queue_free(&qcheck);
+  queue_free(&qcheck2);
   queue_free(&infoq);
   map_free(&m);
   map_free(&mneg);