Merge pull request #2706 from fatbox/rpm-faster-version

Speed up yum/rpm version() if we're not looking for something specific

salt/modules/yumpkg.py

@@ -175,7 +175,18 @@ def version(name):
 
         salt '*' pkg.version <package name>
     '''
-    pkgs = list_pkgs(name)
+    # since list_pkgs is used to support matching complex versions
+    # we can search for a digit in the name and if one doesn't exist
+    # then just use the dbMatch function, which is 1000 times quicker
+    m = re.search("[0-9]", name)
+    if m:
+        pkgs = list_pkgs(name)
+    else:
+        ts = rpm.TransactionSet()
+        mi = ts.dbMatch('name', name)
+        pkgs = {}
+        for h in mi:
+            pkgs[h['name']] = "-".join([h['version'], h['release']])
     if name in pkgs:
         return pkgs[name]
     else: