python-smartpm: add support for recommends

Implement support within Smart for handling RRECOMMENDS relationships
between RPM packages as used by OE. This includes support within the
base system for caching and resolving these relationships as well as
specific support in the RPM backend for reading the information from
packages, and reading the "missingok" flag added to createrepo for
rpm-md feeds.

(From OE-Core rev: 35e3bc90ec3bae824804bd176b3128efdb5b4e2b)

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/python/python-smartpm/smart-missingok.patch

@@ -1,43 +0,0 @@
-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