- add evrcmp mode parameter

5 files changed, 27 insertions, 15 deletions

diff --git a/src/evr.c b/src/evr.c
index 07701b3..857b92e 100644
--- a/src/evr.c
+++ b/src/evr.c
@@ -73,10 +73,13 @@ vercmp(const char *s1, const char *q1, const char *s2, const char *q2)
   return s1 < q1 ? 1 : s2 < q2 ? -1 : 0;
 }
 
+#define EVRCMP_COMPARE			0
+#define EVRCMP_MATCH_RELEASE		1
+#define EVRCMP_MATCH			2
 
 // edition (e:v-r) compare
 int
-evrcmp(Pool *pool, Id evr1id, Id evr2id)
+evrcmp(Pool *pool, Id evr1id, Id evr2id, int mode)
 {
   int r;
   const char *evr1, *evr2;
@@ -89,7 +92,7 @@ evrcmp(Pool *pool, Id evr1id, Id evr2id)
   evr2 = id2str(pool, evr2id);
 
 #if 0
-  POOL_DEBUG(DEBUG_EVRCMP, "evrcmp %s %s\n", evr1, evr2);
+  POOL_DEBUG(DEBUG_EVRCMP, "evrcmp %s %s mode=%d\n", evr1, evr2, mode);
 #endif
   for (s1 = evr1; *s1 >= '0' && *s1 <= '9'; s1++)
     ;
@@ -132,15 +135,20 @@ evrcmp(Pool *pool, Id evr1id, Id evr2id)
   for (s2 = evr2, r2 = 0; *s2; s2++)
     if (*s2 == '-')
       r2 = s2;
-  r = vercmp(evr1, r1 ? r1 : s1, evr2, r2 ? r2 : s2);
+
+  r = 0;
+  if (mode != EVRCMP_MATCH || (evr1 != (r1 ? r1 : s1) && evr2 != (r2 ? r2 : s2)))
+    r = vercmp(evr1, r1 ? r1 : s1, evr2, r2 ? r2 : s2);
   if (r)
     return r;
-#ifdef DEBIAN_SEMANTICS
-  if (!r1 && r2)
-    return -1;
-  if (r1 && !r2)
-    return 1;
-#endif
+
+  if (mode == EVRCMP_COMPARE)
+    {
+      if (!r1 && r2)
+	return -1;
+      if (r1 && !r2)
+	return 1;
+    }
   if (r1 && r2)
     {
       if (s1 != ++r1 && s2 != ++r2)
diff --git a/src/evr.h b/src/evr.h
index 5fe0c9d..7606608 100644
--- a/src/evr.h
+++ b/src/evr.h
@@ -19,8 +19,12 @@ extern "C" {
 
 #include "pooltypes.h"
 
-extern int vercmp( const char *s1, const char *q1, const char *s2, const char *q2 );
-extern int evrcmp( Pool *pool, Id evr1id, Id evr2id );
+#define EVRCMP_COMPARE                  0
+#define EVRCMP_MATCH_RELEASE            1
+#define EVRCMP_MATCH                    2
+
+extern int vercmp(const char *s1, const char *q1, const char *s2, const char *q2);
+extern int evrcmp(Pool *pool, Id evr1id, Id evr2id, int mode);
 
 #ifdef __cplusplus
 }
diff --git a/src/policy.c b/src/policy.c
index 71e2b38..4c632e5 100644
--- a/src/policy.c
+++ b/src/policy.c
@@ -282,7 +282,7 @@ prune_to_best_version(Pool *pool, Queue *plist)
 
       if (pool->solvables[best].evr != s->evr)   /* compare evr */
         {
-          if (evrcmp(pool, pool->solvables[best].evr, s->evr) < 0)
+          if (evrcmp(pool, pool->solvables[best].evr, s->evr, EVRCMP_MATCH_RELEASE) < 0)
             best = plist->elements[i];
         }
     }
@@ -386,7 +386,7 @@ policy_findupdatepackages(Solver *solv, Solvable *s, Queue *qs, int allowall)
 	{
 	  if (!allowall)
 	    {
-	      if (!solv->allowdowngrade && evrcmp(pool, s->evr, ps->evr) > 0)
+	      if (!solv->allowdowngrade && evrcmp(pool, s->evr, ps->evr, EVRCMP_MATCH_RELEASE) > 0)
 	        continue;
 	      if (!solv->allowarchchange && s->arch != ps->arch && policy_illegal_archchange(pool, s, ps))
 		continue;
diff --git a/src/pool.c b/src/pool.c
index 9394cd7..6e05c64 100644
--- a/src/pool.c
+++ b/src/pool.c
@@ -558,7 +558,7 @@ pool_addrelproviders(Pool *pool, Id d)
 	      else
 		{
 		  int f = flags == 5 ? 5 : flags == 2 ? pflags : (flags ^ 5) & (pflags | 5);
-		  if ((f & (1 << (1 + evrcmp(pool, pevr, evr)))) != 0)
+		  if ((f & (1 << (1 + evrcmp(pool, pevr, evr, EVRCMP_MATCH_RELEASE)))) != 0)
 		    break;
 		}
 	    }
diff --git a/src/solver.c b/src/solver.c
index 4b3d8ad..3b919f6 100644
--- a/src/solver.c
+++ b/src/solver.c
@@ -3155,7 +3155,7 @@ printsolutions(Solver *solv, Queue *job)
 		  if (sd)
 		    {
 		      int gotone = 0;
-		      if (!solv->allowdowngrade && evrcmp(pool, s->evr, sd->evr) > 0)
+		      if (!solv->allowdowngrade && evrcmp(pool, s->evr, sd->evr, EVRCMP_MATCH_RELEASE) > 0)
 			{
 			  POOL_DEBUG(SAT_DEBUG_RESULT, "- allow downgrade of %s to %s\n", solvable2str(pool, s), solvable2str(pool, sd));
 			  gotone = 1;