backends/rpm: Identify recommended packages

We identify and store recommended packages (and later throw that data away.)

This is indended to be the starting work to add support for recommended
packages to smart.

Upstream-status: Inappropriate [ Code isn't finished! ]

Signed-off-by: Mark Hatle <mark.hatle@windriver.com>

Index: smart-1.4.1/smart/backends/rpm/header.py
===================================================================
--- smart-1.4.1.orig/smart/backends/rpm/header.py
+++ smart-1.4.1/smart/backends/rpm/header.py
@@ -292,6 +292,7 @@ class RPMHeaderLoader(Loader):
                     f = [0]
                 elif type(f) != list:
                     f = [f]
+                recdict = {}
                 reqdict = {}
                 for i in range(len(n)):
                     ni = n[i]
@@ -308,10 +309,17 @@ class RPMHeaderLoader(Loader):
                             # RPMSENSE_SCRIPT_PREUN |
                             # RPMSENSE_SCRIPT_POST |
                             # RPMSENSE_SCRIPT_POSTUN == 7744
-                            reqdict[(f[i]&7744 and PreReq or Req,
-                                     intern(ni), r, vi)] = True
+                            if (f[i]&rpm.RPMSENSE_MISSINGOK):
+                                print "Ignoring Recommend Dependency: %s" % (ni)
+                                recdict[(f[i]&7744 and PreReq or Req,
+                                         intern(ni), r, vi)] = True
+                            else:
+                                reqdict[(f[i]&7744 and PreReq or Req,
+                                         intern(ni), r, vi)] = True
+                recargs = collapse_libc_requires(recdict.keys())
                 reqargs = collapse_libc_requires(reqdict.keys())
             else:
+                recargs = None
                 reqargs = None
 
             n = h[1054] # RPMTAG_CONFLICTNAME