From 50d2c05481ea3d29d12bab5ab2a9cc1b3e80ca12 Mon Sep 17 00:00:00 2001
From: Michael Matz <matz@suse.de>
Date: Mon, 15 Oct 2007 01:59:12 +0000
Subject: [PATCH] I have use for a tool to merge .solv files.

---
 src/source_solv.c |  1 +
 tools/Makefile.am |  7 ++--
 tools/mergesolv.c | 97 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 103 insertions(+), 2 deletions(-)
 create mode 100644 tools/mergesolv.c

diff --git a/src/source_solv.c b/src/source_solv.c
index 7212183..2d6ddd6 100644
--- a/src/source_solv.c
+++ b/src/source_solv.c
@@ -464,6 +464,7 @@ pool_addsource_solv(Pool *pool, FILE *fp, const char *sourcename)
     }
   if (size_idarray)
     source->idarraydata = (Id *)xmalloc(sizeof(Id) * size_idarray);
+  source->idarraysize = size_idarray;
   idarraydatap = source->idarraydata;
 
   /* alloc solvables */
diff --git a/tools/Makefile.am b/tools/Makefile.am
index d237497..7fb94e9 100644
--- a/tools/Makefile.am
+++ b/tools/Makefile.am
@@ -1,9 +1,9 @@
-noinst_PROGRAMS = rpmdb2solv rpmmd2solv helix2solv susetags2solv patchxml2solv dumpsolv
+noinst_PROGRAMS = rpmdb2solv rpmmd2solv helix2solv susetags2solv patchxml2solv dumpsolv mergesolv
 
 INCLUDES =  \
 	-I$(top_srcdir)/src
 
-LIBS = \
+LDADD = \
 	$(top_builddir)/src/libsatsolver.la
 
 noinst_HEADERS = source_write.h
@@ -49,3 +49,6 @@ patchxml2solv_LDADD = -lexpat
 dumpsolv_SOURCES = \
 	dumpsolv.c
 
+mergesolv_SOURCES = \
+	mergesolv.c \
+	source_write.c
diff --git a/tools/mergesolv.c b/tools/mergesolv.c
new file mode 100644
index 0000000..f466b9b
--- /dev/null
+++ b/tools/mergesolv.c
@@ -0,0 +1,97 @@
+/*
+ * mergesolv
+ * 
+ */
+
+#include <sys/types.h>
+#include <limits.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+
+#include "pool.h"
+#include "source_solv.h"
+#include "source_write.h"
+
+static void
+adjust (Id **val, Id * new_id, Source *source)
+{
+  if (!*val)
+    return;
+  assert (source->idarraydata <= *val);
+  assert (*val < source->idarraydata + source->idarraysize);
+  *val = new_id + (*val - source->idarraydata);
+}
+
+int
+main(int argc, char **argv)
+{
+  Pool *pool = pool_create();
+  int i;
+  int new_id_size;
+  Id *new_id;
+
+  while (argc-- > 1)
+    {
+      FILE *fp;
+      argv++;
+      if ((fp = fopen(*argv, "r")) == NULL)
+	{
+	  perror(argv[1]);
+	  exit(0);
+	}
+      pool_addsource_solv(pool, fp, "");
+      fclose(fp);
+    }
+  if (!pool->nsources)
+    return 0;
+
+  new_id_size = 0;
+  for (i = 0; i < pool->nsources; i++)
+    new_id_size += pool->sources[i]->idarraysize;
+  new_id = (Id*) malloc (sizeof (Id) * new_id_size);
+  new_id_size = 0;
+  for (i = 0; i < pool->nsources; i++)
+    {
+      Source *source = pool->sources[i];
+      int si;
+      memcpy (new_id + new_id_size, source->idarraydata,
+      	      source->idarraysize * sizeof (new_id[0]));
+      for (si = source->start; si < source->start + source->nsolvables; si++)
+        {
+	  Solvable *s = pool->solvables + si;
+	  adjust (&s->provides, new_id + new_id_size, source);
+	  adjust (&s->obsoletes, new_id + new_id_size, source);
+	  adjust (&s->conflicts, new_id + new_id_size, source);
+	  adjust (&s->requires, new_id + new_id_size, source);
+	  adjust (&s->recommends, new_id + new_id_size, source);
+	  adjust (&s->suggests, new_id + new_id_size, source);
+	  adjust (&s->supplements, new_id + new_id_size, source);
+	  adjust (&s->enhances, new_id + new_id_size, source);
+	  adjust (&s->freshens, new_id + new_id_size, source);
+	}
+      new_id_size += source->idarraysize;
+      if (i > 0)
+        {
+	  pool->sources[0]->nsolvables += source->nsolvables;
+	  source->nsolvables = 0;
+	  source->start = pool->nsolvables;
+	  free (source->idarraydata);
+	  source->idarraydata = 0;
+	}
+    }
+  while (pool->nsources > 1)
+    {
+      pool_freesource (pool, pool->sources[1]);
+    }
+  free (pool->sources[0]->idarraydata);
+  pool->sources[0]->idarraydata = new_id;
+  pool->sources[0]->idarraysize = new_id_size;
+
+  pool_writesource(pool, pool->sources[0], stdout);
+  pool_free(pool);
+
+  return 0;
+}
-- 
2.7.4