python-smartpm: Fix attemptonly builds when file conflicts occur

[YOCTO #7299]

When file conflicts occur, the RPM transaction aborts.  Instead of
simply accepting the failure, we now identify, capture, and remove
the offending package(s) from the transaction and retry.

(From OE-Core rev: cd475aea5f5bc4b6a2dd3e576070a117ae079597)

(From OE-Core rev: ce09e1be344abce981a40feb9970c3f86cfdc0ee)

Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

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

@@ -9,40 +9,24 @@ failures (usually conflicts).
 
 This option only works for the install operation.
 
+If a complementary install fails, an actual error occurred, one that
+we can't ignore without losing the entire attempted transaction.  Keep
+this as an error so that we can catch these cases in the futre.
+
 Upstream-Status: Pending
 
 Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
 Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
-
-For complementary and 'attemptonly' package processing, we should
-make sure the warn rather than error reported.
-Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
 ---
  smart.py                  |  5 +++-
  smart/commands/install.py |  5 ++++
  smart/transaction.py      | 65 +++++++++++++++++++++++++++++++++++------------
  3 files changed, 58 insertions(+), 17 deletions(-)
 
-diff --git a/smart.py b/smart.py
+Index: smart-1.4.1/smart/commands/install.py
-index c5c7a02..7e7fd34 100755
+===================================================================
---- a/smart.py
+--- smart-1.4.1.orig/smart/commands/install.py
-+++ b/smart.py
++++ smart-1.4.1/smart/commands/install.py
-@@ -179,7 +179,10 @@ def main(argv):
-         if opts and opts.log_level == "debug":
-             import traceback
-             traceback.print_exc()
--        if iface.object:
-+        if iface.object and sysconf.has("attempt-install", soft=True):
-+            iface.warning(unicode(e))
-+            exitcode = 0
-+        elif iface.object:
-             iface.error(unicode(e))
-         else:
-             sys.stderr.write(_("error: %s\n") % e)
-diff --git a/smart/commands/install.py b/smart/commands/install.py
-index 590222c..6ef9682 100644
---- a/smart/commands/install.py
-+++ b/smart/commands/install.py
 @@ -50,6 +50,8 @@ def option_parser():
      parser = OptionParser(usage=USAGE,
                            description=DESCRIPTION,
@@ -62,10 +46,10 @@ index 590222c..6ef9682 100644
      if opts.explain:
          sysconf.set("explain-changesets", True, soft=True)
  
-diff --git a/smart/transaction.py b/smart/transaction.py
+Index: smart-1.4.1/smart/transaction.py
-index 5730a42..e3e61c6 100644
+===================================================================
---- a/smart/transaction.py
+--- smart-1.4.1.orig/smart/transaction.py
-+++ b/smart/transaction.py
++++ smart-1.4.1/smart/transaction.py
 @@ -555,6 +555,8 @@ class Transaction(object):
          changeset.set(pkg, INSTALL)
          isinst = changeset.installed
@@ -183,6 +167,57 @@ index 5730a42..e3e61c6 100644
                  elif op is REMOVE:
                      self._remove(pkg, changeset, locked, pending)
                  elif op is UPGRADE:
--- 
+Index: smart-1.4.1/smart/backends/rpm/pm.py
-1.9.1
+===================================================================
-
+--- smart-1.4.1.orig/smart/backends/rpm/pm.py
++++ smart-1.4.1/smart/backends/rpm/pm.py
+@@ -243,15 +253,48 @@ class RPMPackageManager(PackageManager):
+         cb = RPMCallback(prog, upgradednames)
+         cb.grabOutput(True)
+         probs = None
++        retry = 0
+         try:
+             probs = ts.run(cb, None)
+         finally:
+             del getTS.ts
+             cb.grabOutput(False)
++            if probs and sysconf.has("attempt-install", soft=True):
++                def remove_conflict(pkgNEVR):
++                    for key in changeset.keys():
++                        if pkgNEVR == str(key):
++                            del changeset[key]
++                            del pkgpaths[key]
++                            iface.warning("Removing %s due to file %s conflicting with %s" % (pkgNEVR, fname, altNEVR))
++                            break
++
++                retry = 1
++                for prob in probs:
++                    if prob[1][0] == rpm.RPMPROB_NEW_FILE_CONFLICT:
++                        msg = prob[0].split()
++                        fname = msg[1]
++                        pkgNEVR = msg[7]
++                        altNEVR = msg[9]
++                        pkgNEVR = pkgNEVR.rsplit('.', 1)[0] + '@' + pkgNEVR.rsplit('.', 1)[1]
++                        altNEVR = altNEVR.rsplit('.', 1)[0] + '@' + altNEVR.rsplit('.', 1)[1]
++                        remove_conflict(pkgNEVR)
++                    elif prob[1][0] == rpm.RPMPROB_FILE_CONFLICT:
++                        msg = prob[0].split()
++                        fname = msg[1]
++                        pkgNEVR = msg[5]
++                        altNEVR = msg[11]
++                        pkgNEVR = pkgNEVR.rsplit('.', 1)[0] + '@' + pkgNEVR.rsplit('.', 1)[1]
++                        altNEVR = altNEVR.rsplit('.', 1)[0] + '@' + altNEVR.rsplit('.', 1)[1]
++                        remove_conflict(pkgNEVR)
++                    else:
++                        retry = 0
++
+             prog.setDone()
+-            if probs:
++            if probs and (not retry):
+                 raise Error, "\n".join([x[0] for x in probs])
+             prog.stop()
++            if retry and len(changeset):
++                self.commit(changeset, pkgpaths)
+ 
+ class RPMCallback:
+     def __init__(self, prog, upgradednames):