Addition Yum error handling

Address ticket #955 and attempt to capture the exceptions that
may possibly be generated from Yum or Yum's plugins and return
some sort of error message.

1 files changed, 34 insertions, 16 deletions

diff --git a/src/lib/Client/Tools/YUMng.py b/src/lib/Client/Tools/YUMng.py
index 324307f7f..0435ca0d7 100644
--- a/src/lib/Client/Tools/YUMng.py
+++ b/src/lib/Client/Tools/YUMng.py
@@ -170,7 +170,7 @@ class YUMng(Bcfg2.Client.Tools.PkgTool):
         except yum.Errors.RepoError, e:
             self.logger.error("YUMng Repository error: %s" % e)
             raise Bcfg2.Client.Tools.toolInstantiationError
-        except yum.Errors.YumBaseError, e:
+        except Exception, e:
             self.logger.error("YUMng error: %s" % e)
             raise Bcfg2.Client.Tools.toolInstantiationError
 
@@ -671,38 +671,56 @@ class YUMng(Bcfg2.Client.Tools.PkgTool):
             return True
 
     def _runYumTransaction(self):
+        def cleanup():
+            self.yb.closeRpmDB()
+            self.RefreshPackages()
+
         rDisplay = RPMDisplay(self.logger)
         yDisplay = YumDisplay(self.logger)
         # Run the Yum Transaction
-        rescode, restring = self.yb.buildTransaction()
+        try:
+            rescode, restring = self.yb.buildTransaction()
+        except yum.Errors.YumBaseError, e:
+            self.logger.error("Yum transaction error: %s" % str(e))
+            cleanup()
+            return
+
         self.logger.debug("Initial Yum buildTransaction() run said:")
         self.logger.debug("   resultcode: %s, msgs: %s" \
                           % (rescode, restring))
 
         if rescode != 1:
             # Transaction built successfully, run it
-            self.yb.processTransaction(callback=yDisplay,
-                                       rpmDisplay=rDisplay)
-            self.logger.info("Single Pass for Install Succeeded")
+            try:
+                self.yb.processTransaction(callback=yDisplay,
+                                           rpmDisplay=rDisplay)
+                self.logger.info("Single Pass for Install Succeeded")
+            except yum.Errors.YumBaseError, e:
+                self.logger.error("Yum transaction error: %s" % str(e))
+                cleanup()
+                return
         else:
             # The yum command failed.  No packages installed.
             # Try installing instances individually.
             self.logger.error("Single Pass Install of Packages Failed")
             skipBroken = self.yb.conf.skip_broken
             self.yb.conf.skip_broken = True
-            rescode, restring = self.yb.buildTransaction()
-            if rescode != 1:
-                self.yb.processTransaction(callback=yDisplay,
-                                           rpmDisplay=rDisplay)
-                self.logger.debug(
-                    "Second pass install did not install all packages")
-            else:
-                self.logger.error("Second pass yum install failed.")
-                self.logger.debug("   %s" % restring)
+            try:
+                rescode, restring = self.yb.buildTransaction()
+                if rescode != 1:
+                    self.yb.processTransaction(callback=yDisplay,
+                                               rpmDisplay=rDisplay)
+                    self.logger.debug(
+                        "Second pass install did not install all packages")
+                else:
+                    self.logger.error("Second pass yum install failed.")
+                    self.logger.debug("   %s" % restring)
+            except yum.Errors.YumBaseError, e:
+                self.logger.error("Yum transaction error: %s" % str(e))
+
             self.yb.conf.skip_broken = skipBroken
 
-        self.yb.closeRpmDB()
-        self.RefreshPackages()
+        cleanup()
 
     def Install(self, packages, states):
         """